Journal articles: 'Sewage treatment plant'

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Duan, Aochuan. "Design of Sewage Treatment Process of Shaowu Second Sewage Treatment Plant Based on the Modified Carrousel Oxidation Ditch." E3S Web of Conferences 370 (2023): 02002. http://dx.doi.org/10.1051/e3sconf/202337002002.

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This paper is designed for the sewage treatment process of Shaowu City Second Sewage Treatment Plant, focusing on the modified card oxidation ditch process. This sewage treatment plant is mainly purified by living sewage in Shaowu City, and the processing scale is 10,000 m3d-1. According to the sewage quality and the reality of urban development, this paper selects the hydrolyzate + oxidation ditch + concrete precipitation process. The sewage first hydrolyzedate the acidified tank before entering the secondary treatment to increase the sewage’s sewage, then remove the main organic matter in the water and complete the nitrogen removal phosphorus. Finally, further remove the suspension in water. The material and total phosphorus have enabled water quality to meet the “Sewage Treatment Plant Pollutant Emission Standard” (GB18918-2002). The project is expected to invest 3001,500 yuan, and the wastewater operating cost of the equivalent is 0.57 yuan/ton.

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Zhang, Qing Tao, Zhi Jian Zhang, Jiong Ma, and Jiao Xiang. "The Growth Performance of Duckweed and Removal Rate of Nitrate and Phosphorus in Sewages with Different Processes." Applied Mechanics and Materials 522-524 (February 2014): 854–60. http://dx.doi.org/10.4028/www.scientific.net/amm.522-524.854.

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The growth performance of duckweed (Spirodela polyrrhiza) and its removal rate of nitrate and phosphorus in sewages taken from sewage treatment plant with different processes were studied. The experiments were conducted in an environmentally controlled growth chamber. Three kinds of sewages were taken from a grit chamber, a sedimentation tank, and the anoxic pond in a sewage treatment plant, respectively. The fourth kind of sewage was mixed using the sedimentation tank sewage and the anoxic pond sewage in a volumetric ratio 1:1. The weight of duckweed biomass were determined with a balance. Wastewater samples taken from the media were analyzed for total nitrogen (TN), ammonium nitrogen (NH4N), total phosphorus (TP), phosphatephosphorus (PO4P) using AA3 Continous Flow Analyzer. The results showed that Spirodela polyrrhiza grew well in sewages taken from grit chamber and sedimentation tank of a sewage treatment plant, whereas a lot of duckweed fronds were dead in the sewage taken from the anoxic pond due to the high TP (higher than 7.9 mg/L) and TN (higher than 51.6 mg/L). The suitable TN concentration for Spirodela polyrrhiza growth should not be higher than 45 mg/L. Compared with the treatments without duckweed, the NH4N concentrations were reduced more than 60% in ST and GC sewages with duckweed due to the NH4N uptake by duckweed. Spirodela polyrrhiza could remove TN efficiently in sewages with relative low concentration TN (less than 20 mg/L), while duckweed could not remove TN effectively in sewages with high concentration TN (higher than 20 mg/L). The TN concentration in GC sewage decreased greatly in the first four days, which probably brought about anaerobic condition, thus P uptake switched to net release of P, which caused the increase of the TP concentration in the GC sewage without duckweed in the last six days. O2 or oxidant should be provided for sewage treatment system using duckweed to ensure that efficient removal of TN and TP meanwhile. The TP and PO4P concentrations in the mixed sewage with duckweed increased far more than those for no-duckweed treatments, which could be related that the dead duckweed released P into the sewage.

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Królik, Dariusz, Przemysław Wypych, and Jakub Kostecki. "Sewage Sludge Management in a Sewage Treatment Plant." Civil and Environmental Engineering Reports 29, no. 3 (September 1, 2019): 209–17. http://dx.doi.org/10.2478/ceer-2019-0036.

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Abstract Sewage sludge produced in municipal sewage treatment plants, because of its physicochemical and sanitary properties, is a serious threat to the environment. In order to neutralize it, various methods of processing are used, which directly affect the quantity and quality of produced sewage sludge, which in the final stage can be used naturally. Properly managed sludge management is presented on the example of a sewage treatment plant, conducting the methane fermentation process with the production of biogas.

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RAIZER NETO, Ernesto, Júlio Dias do PRADO, Marlon Leal MARCELINO, and Glicia Gabriela VIEIRA. "SEWAGE TREATMENT PLANT SINGLE FAMILY." Periódico Tchê Química 13, no. 25 (January 20, 2016): 37–41. http://dx.doi.org/10.52571/ptq.v13.n25.2016.37_periodico25_pgs_37_41.pdf.

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Currently there is great concern about the lack of drinking water in the world, today Brazil has already suffered the consequences by waste and improper disposal of waste, suffering already with several forced rationing. Improper disposal of sewage is the main cause of soil pollution, groundwater, surface water sources and water courses in Santa Catarina. Among the existing municipalities in the state, only 8% are met with services by the sewage system, while the national average is 19%. More efficient existing sewage treatment systems are extremely large, with this in order to solve the problems with the incorrect disposal of sewage, as well as an efficient and cost-effective treatment, a small health treatment plant was designed, to meet families of up to 4 residents with similar price to the notch filter system, but more efficiently, allowing direct discharge into storm beds, even the reuse of water for irrigation systems. The prototype was installed on 10.8.2014, and performed all tests ordered by law to date. The results were encouraging, given both technical and financial.

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Shree Samal, Swati. "Design of Sewage Treatment Plant." IOSR Journal of Mechanical and Civil Engineering 13, no. 05 (May 2016): 25–31. http://dx.doi.org/10.9790/1684-1305052531.

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Harris, Roswell A., and Louis F. Cohn. "Controlling Sewage Treatment Plant Noise." Journal of Environmental Engineering 117, no. 5 (September 1991): 680–85. http://dx.doi.org/10.1061/(asce)0733-9372(1991)117:5(680).

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Li, Na. "Sewage treatment degradation thermal energy management system of sewage treatment plant." Thermal Science 24, no. 5 Part B (2020): 3149–56. http://dx.doi.org/10.2298/tsci191110105l.

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Objective: The paper is to study the sewage treatment degradation thermal energy management system of a sewage treatment plant, to achieve the energy saving and emission reduction. Methods: This paper studies the electron equivalent reaction of biochemical reaction of organic matter. Under the environmental conditions of biochemical degradation of sewage, biochemical oxygen demand (BOD5) is used to indicate the amount of heat generated by the degradation of organic matter in sewage. The paper designs a management system based on sewage heat recovery, and uses it to carry out heat recovery of sewage. Also, the energy-saving benefits produced by the heat management system are studied. Results: The sewage heat recovery system is more energy-efficient than the common air-conditioning supply system. In the use of sewage heat management system for one year, it achieves energy saving of 30.4% better than that of ordinary air-conditioning systems. The system for one year saves electric energy of 2145464 kWh, which is equivalent to saving 2511994?104 kJ primary energy. This system saves 858.2 tons per year of standard coal, reduces CO2 emissions by 2789.1 tons per year, reduces SO2 emissions by 19.61 tons per year, reduces NO2 emissions by 7.12 tons per year, reduces ash emissions by 135.19 tons per year, and saves tap water replenishment 40243 tons per year. Conclusion: The sewage thermal energy management system can utilize the thermal energy in the sewage, thereby using the sewage as a new clean energy. It can effectively improve China?s current energy shortage and make a substantial contribution China?s energy saving and emission reduction goals.

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Wang, Li. "Sewage Wastewater Treatment Plant Inverted AAO Process Design." Advanced Materials Research 1079-1080 (December 2014): 480–83. http://dx.doi.org/10.4028/www.scientific.net/amr.1079-1080.480.

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The graduation design topic for a sewage treatment plant processesdesign - inverted AAO process in durian. Main task is tantamount to designaccording to the requirement of the nature of the city sewage, sewage, scalepreliminary design to complete sewage treatment plant and single processing structure design.

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Khewale, Vinay. "Sewage Water Treatment Plant for Hingna." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (July 15, 2021): 796–98. http://dx.doi.org/10.22214/ijraset.2021.36495.

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A sewage water treatment plant is necessary to receive and treat waste water (Domestic, Commercial, and Industrial). Its objective is to be convert harmful waste water to safe water environmentally and treated effluent and treated sludge suitable for reuse and disposal such as farm fertilizer. The characteristics of waste water have been performed followed by design of sewage treatment plant. The present study includes design of sewage treatment plant and analysis of waste water – PH value, Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Solids (TS), Hardness, Chloride, Acidity, Oil, Fats and grease etc. The sample collection of waste water has been done in many times in a day to obtain an average value of major parameter. Followed by values of this parameter, calculations are done for designing the units of sewage treatment plant and layout is prepared for the same

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Bugajski, Piotr M., Grzegorz Kaczor, and Krzysztof Chmielowski. "Variable dynamics of sewage supply to wastewater treatment plant depending on the amount of precipitation water inflowing to sewerage network." Journal of Water and Land Development 33, no. 1 (June 1, 2017): 57–63. http://dx.doi.org/10.1515/jwld-2017-0019.

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AbstractThe paper analyzes the effect of precipitation water that inflowing to sanitary sewage system as accidental water on the changes in the total amount of treated sewage. The effects of accidental water supply on the total amount of sewage inflowing to treatment plant were analyzed based on mean daily amounts from the investigated periods and mean daily amounts from incidental supplies. The study was conducted in the years 2010–2015. Six characteristic research periods were identified (one per each calendar year), when the amount of sewage in the sanitary sewage system was greater than during dry weather. The analysis of changes in the amount of sewage supplied to the sewerage system in the six investigated periods revealed that the accidental water constituted from 26.8% to 48.4% of total sewage inflowing to the wastewater treatment plant (WWTP). In exceptional situations, during intense rains, the share of precipitation water in the sewerage system would increase up to 75%. Then, the rainwater inflowing the sewerage system caused hydraulic overloading of the WWTP by exceeding its maximum design supply.

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Zheng, Wei, Yan Ming Yang, Yun Long Li, and Jian Qiu Zheng. "Treatment of Rural Domestic Sewage by Solar Ozonic Ecological Sewage Treatment Plant." Advanced Materials Research 955-959 (June 2014): 3393–99. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.3393.

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The process technique and design parameters of project of Solar Ozonic Ecological Sewage Treatment Plant (short for SOESTP) which consists of anaerobic reactor, horizontal subsurface flow (HSSF) constructed wetlands(CWs) and the combination of solar power and ozone disinfection are described, the paper further examines the removal efficiency for treating rural domestic sewage, running expense and recycling ability of product water. The results show that the average percentage removal values of CODcr，BOD5，SS，TN，NH3-N，TP range from 95.6% to 98.0%, 96.0% to 98.7%, 93.1% to 96.1%, 97.0% to 98.9%, 96.9% to 99.5%, 98.2% to 99.6%, respectively, the reduction of fecal coliform (FC) reaches 99.9%, the effluent quality meets the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant（GB18918-2002）. The running cost of SOESTP is 0.063yuan/ m3, saves much more than traditional sewage treatment, and the ozone water obtained from the reservoir will be an ideal choice for disinfection .The system has characteristics of easy manipulation, low operating cost, achieving advanced water, energy conservation and environment protection, is thought to be very suitable for use as the promotion of rural small - scale sewage treatment.

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PK, Sruthi Raj. "Design of 50KLD Sewage Treatment Plant." International Journal for Research in Applied Science and Engineering Technology 10, no. 7 (July 31, 2022): 1109–12. http://dx.doi.org/10.22214/ijraset.2022.45455.

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Abstract: Sewage treatment is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable for discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage. Canteen of every academic organization need a lot of clean water, and it generates equivalent amount of wastewater every hour which is neither purified nor reused. Due to water scarcity, the recycling and reusing of wastewater become very essential. The present study describes the simple and Cost-effective method for the design of a smallscale wastewater treatment plant for the purification of wastewater generated by canteen of Ma’din College. The present study involves the Analysis of pH value, total solid , total Suspension solid , hardness,Acidity , oil fat and grease , chloride ,BOD,DO etc. The Sampling of the waste water have been done in different times of the day to have an Average data of measure parameters.

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Andersson, C., M. Tendaj, and M. Rothman. "Filtration at Bromma Sewage Treatment Plant." Water Science and Technology 25, no. 4-5 (February 1, 1992): 59–66. http://dx.doi.org/10.2166/wst.1992.0481.

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The requirements for purification of the sewage will be more stringent in Sweden. For the three plants in Stockholm - Henriksdal, Bromma and Loudden the proposed limit concentrations for BOD7, total phosphorus and total nitrogen are 10, 0.3 and 15 respectively. A limit value of 0.3 mg/l of phosphorus in the effluent will require a filtration stage. In this paper results are presented from filter tests at Bromma sewage treatment plant. The tests were carried out during almost two years and included operation of different types of sand dual-media downflow filters and an upflow filter. The filters were tested with respect to sludge accumulation capacity, suspended solids removal and phosphorus removal at different operation conditions including chemical precipitation in the filters.

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Ismaeel, Tareq Ahmed. "Designing a Decentralized Sewage Treatment Plant." Iraqi Journal of Industrial Research 8, no. 1 (June 14, 2021): 16–28. http://dx.doi.org/10.53523/ijoirvol8i1id43.

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The contamination in Tigress and Euphrates Rivers in Iraq has reached a high level for several reasons; one of these reasons is the discharged of sewage treatment plant (STP) effluent in the rivers, as well as other wastewater treatment plants. But the major problem is to taker discharge of wastewater to the river directly with no treatment! Many tankers in different places in all governorates in Iraq are utilized because of the absence of sewers which collecting the domestic discharge. Wastewater discharge in the rivers increases the pollution levels and especially when the river level decreases during summer seasons. In the last few years, the pollution was dramatically exacerbated. In this paper, an optimum Design for Decentralized Sewage Treatment Plant will be presented. Discharge of sewage tanks in the Tigris River has a severe negative impact on the environment; causing a deficiency in the dissolved oxygen in the water and increasing the limits of toxicity due to the accumulation of organic and inorganic substances. Pollution has become a serious issue that directly affects the aquatic life, agriculture, and people. The design unit has good specifications for effluent water discharge. TSS (Total Suspended Solid) decreased to less than 10 ppm, BOD (Biochemical Oxygen Demand) to less than 10 ppm, and COD (Chemical Oxygen Demand) to less than 50 ppm. The designed unit showed a good and easy operation and maintenance with less chemicals used.

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Mori, Y., and Y. Uemura. "Sewage Treatment Plant Project in Malaysia." Concrete Journal 49, no. 9 (2011): 9_106–9_111. http://dx.doi.org/10.3151/coj.49.9_106.

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Uher, Pavel. "Czechoslovakia's first underground sewage treatment plant." Tunnelling and Underground Space Technology 2, no. 3 (January 1987): 275–78. http://dx.doi.org/10.1016/0886-7798(87)90035-6.

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Belova, L. V., E. I. Vyalkova, E. S. Glushchenko, and E. Yu Osipova. "Electroplating plant sewage technology." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 23, no. 3 (June 28, 2021): 143–54. http://dx.doi.org/10.31675/1607-1859-2021-23-3-143-154.

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Electroplating plant sewage is characterized by high concentration of metals, suspended solids, acids, alkalis and other contaminants. The irregular inflows, low pH values and specific sewage composition complicate its treatment. The main treatment methods include chemical precipitation, ion exchange, chemical and electrochemical oxidation, flotation, filtration and membrane separation. The paper proposes a possible variant of wastewater treatment in a small electroplating plant. The proposed flow diagram includes sedimentation of polluting substances with sodium hydroxide and oxidation with anolyte. The method results in a 88.9 % reduction in chemical oxygen demand, 99.5 % reduction in suspended solids, 99.8 % reduction in iron, 95.7 % reduction in surfactants, and 99.9 % reduction in copper ions. The pH value of the treated water is 7.8 and matches the value of a slightly alkaline environment.

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Wiśniewska, Marta, and Mirosław Szyłak-Szydłowski. "The Air and Sewage Pollutants from Biological Waste Treatment." Processes 9, no. 2 (January 29, 2021): 250. http://dx.doi.org/10.3390/pr9020250.

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The mechanical-biological waste treatment plants (MBTP), which include the municipal waste biogas plants, have an important role in sustainable urban development. Some plants are equipped with a sewage pre-treatment plant, which is then directed to the sewerage system and the treatment plant. Others, on the other hand, have only a non-drainage tank. The parameters of technological sewage (TS) or processing technology could reduce sewage contamination rates. In addition to the quality of sewage from waste treatment plants, the emission of odours is also an important problem, as evidenced by the results obtained over the sewage pumping station tank. The conducted statistical analysis shows a significant positive correlation between odour concentration (cod) and volatile organic compounds (VOCs). Analysing the individual compounds, a high positive correlation was also found—the strongest being between H2S, NH3 and VOCs. In the case of sewage compounds, the insignificant correlation between P total and other parameters was found. For the rest of the compounds, the highest positive correlation was found between COD and BOD and N-NO2 and N-NH3 as well as COD and N-NO2. The dilution of sewage is only an ad hoc solution to the problem. Further work should be aimed at reducing sewage pollution rates. The obtained results indicate large pollution of technological sewage and a high level of odour and odorants concentration. The novelty and scientific contribution presented in the paper are related to analyses of various factors on technological sewage parameters and odour and odorant emission from TS tank at biogas plant processing municipal waste, which may be an important source of knowledge on the management of TS, its disposal and minimisation of emitted compound emissions.

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Jia, Li. "Treatment and Disposal Technology of Surplus Sludge in Urban and Town Sewage Treatment Plant." E3S Web of Conferences 143 (2020): 02052. http://dx.doi.org/10.1051/e3sconf/202014302052.

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with the continuous acceleration of urban and town construction, the output of urban and town sewage is also increasing. To a great extent, this promotes the technological development and capacity expansion of urban and town sewage treatment plants. In the process of sewage treatment, a lot of sludge is inevitable. However, many urban and town sewage treatment plants pay more attention to the treatment of sewage and ignore the treatment of sludge. In this way, the sludge without proper treatment can be disposed at will. In the long run, this will not only affect the surrounding environment, but also hinder the development of social economy. Therefore, the urban and town sewage treatment plant should pay enough attention to the application of surplus sludge treatment and disposal technology. In this paper, the main problems existing in the treatment and disposal technology of surplus sludge in urban and town sewage treatment plants, and the treatment and disposal technology of surplus sludge in urban and town sewage treatment plants are both explored and analyzed, hoping to contribute to the long-term development of urban and town sewage treatment plants.

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Kaczor, Grzegorz B., Krzysztof Chmielowski, and Piotr Bugajski. "Influence of extraneous waters on the quality and loads of pollutants in wastewater discharged into the treatment plant." Journal of Water and Land Development 33, no. 1 (June 1, 2017): 73–78. http://dx.doi.org/10.1515/jwld-2017-0021.

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Abstract The aim of the study was to analyze an influence of an inflow penetrating into two selected small sewerage systems during a rainy weather on pollutant concentration and load in raw sewage. Studies were conducted in 2010–2015 on two small sewerage systems in Małopolska province. The studies confirmed that the inflow penetrating into the sewerage systems resulted in a decrease of pollutant concentrations in sewage. However, they also showed that this dilution was not constant for all types of pollutants. The most important outcome of the study was demonstrating that despite its diluting effect on pollutants, the intense inflow into a sewerage system resulted in an increase of a sewage pollutant load. This increase was not regular, but it was rising dramatically when the inflow share in sewage exceeded 50%. The study indicated that the inflow penetrating into the sewerage system should not be disregarded, as it actually presented a significant threat to the wastewater treatment process and in consequence to the quality of recipient waters.

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Huda, Ahmad Syaeful, and Maritha Nilam Kusuma. "Planning of Sewage Sludge Treatment Plant Poso Regency." Journal of Civil Engineering, Planning and Design 1, no. 2 (November 22, 2022): 125–33. http://dx.doi.org/10.31284/j.jcepd.2022.v1i2.3686.

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In order to process the fecal sludge that is collected from the residents of Poso Regency, a Sewage Sludge Treatment Plant has been built. For the purpose of treating sewage sludge, this facility is one method utilized to enhance wastewater quality. There is a Sewage Sludge Treatment Plant in Poso Regency, however, it is in disrepair and cannot meet current needs. In light of this, Poso Regency needs cutting-edge technology for treating sewage sludge. The goal of this research was to establish the average entry of fecal sludge and its volume for Poso Regency to create an appropriate system that meets all requirements set forth by the Ministry of Public Works.

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Shuai, Yue, Jun Xie, Kaixuan Lu, and Zhengchao Chen. "Multi-Attention Network for Sewage Treatment Plant Detection." Sustainability 15, no. 7 (March 28, 2023): 5880. http://dx.doi.org/10.3390/su15075880.

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As an important facility for effectively controlling water pollution discharge and recycling waste water resources, accurate sewage treatment plant extraction is very important for protecting quality, function, and sustainable development of the water environment. However, due to the presence of rectangular and circular treatment facilities in sewage treatment plants, the shapes are diverse and the scales are different, resulting in the poor performance of conventional object detection algorithms. This paper proposes a multi-attention network (MANet) for sewage treatment plants using remote sensing images. MANet consists of three major components: a light backbone used to obtain multi-scale features, a channel and spatial attention module that realizes the feature representation of the channel dimension and spatial dimension, and a scale attention module to obtain scale-aware features. The results from the extensive experiments performed on the sewage treatment plant dataset suggest that our proposed MANet exhibits a superior performance compared with other competing methods. Meanwhile, we used a well-trained model to predict the sewage treatment plant from the GF-2 data for the Beijing area. By comparing the results with the data of manually obtained sewage treatment plants, our method can achieve an accuracy of 80.1% while maintaining the recall rate at a high level (90.4%).

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Hirose, K., T. Igarashi, E. Ochiai, H. Seya, and S. Matsui. "Improvement of wastewater treatment performance of the Fukashiba treatment plant." Water Science and Technology 53, no. 11 (May 1, 2006): 127–33. http://dx.doi.org/10.2166/wst.2006.345.

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The Fukashiba Treatment Plant Kashima Rinkai Specified Sewage Works has received wastewater from the petrochemical complex (90%) and public sewage of Kamisu and Hasaki town (10%). For this reason, the plant is facing many difficulties in producing good quality effluent. In order to solve these difficulties, we are reviewing the treatment performance and making efforts for its improvement with nitrification inhibition, control of bio-persistent substances and the PRTR approach.

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Dashore, Shubham, and Aaditya Shrivastava. "Design and Analysis of Sewage Treatment Plant with Sequential Batch Reactor for an Educational Institute." YMER Digital 21, no. 08 (August 11, 2022): 419–30. http://dx.doi.org/10.37896/ymer21.08/38.

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One of major source of wastewater are educational institutions. Educational institutions do not have proper treatment unit for treatingthe sewage created by it. The raw institutional wastewater contains various toxic organic and inorganic compounds, chemicals, pathogenicmicroorganisms etc. If they are released into the environment without any treatment, our natural water bodies will be severely affected by them. As we cannot deny the contribution of educational institutes, industries and agricultural practices in our life, we must find a solutionto minimize the pollution. For this, the wastewater must be treated before releasing into the environment. Sewage treatment is a process that removes unusual contaminants from wastewater and brings back it to the environment for reuse. Our institute BIT Durg also generates both domestic and laboratory wastewaters which is directly going to the municipal sewerage system.With a view to treat and recover water from the sewage, here we arediscussing about constructing a STP Based on SBR concept for its sewage. Keywords: Sequential Batch Reactor (SBR), Sewage treatment plant , STAAD-Pro analysis

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Han, Dong Gang, Chao Li, and Xin Hua Zhao. "Prospect of Sludge Treatment Technology in Tianjin." Advanced Materials Research 765-767 (September 2013): 2916–21. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.2916.

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As the sewage treatment keeps increasing every year, the sludge output from municipal sewage plant increases dramatically. The emission of the sludge without proper treatment pollutes the water and the atmosphere again. It not only slows down the effectiveness of sewage treatment systems, but also threatens the environment and humans activity. In this paper, the current situation of sludge treatment was explored. Based on the systematic research on sludge treatment of municipal sewage plants in Tianjin, some current problems were pointed out. The advices about sludge treatment of municipal sewage plant in Tianjin are outlined.

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Gosling, P., and D. Brown. "Membranes for Sewage Treatment: The Reality." Water Science and Technology 27, no. 5-6 (March 1, 1993): 439–47. http://dx.doi.org/10.2166/wst.1993.0521.

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A crossflow microfiltration process using a dynamic membrane system has been developed for sewage treatment. The development has enabled a 1000m3/day plant to be designed and built. High quality permeates have been achieved with the pilot plant operating in a tertiary treatment position. The larger plant, which has just been commissioned, will operate on primary settled sewage.

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Młyński, Dariusz, Krzysztof Chmielowski, and Anna Młyńska. "Analysis of hydraulic load of a wastewater treatment plant in Jasło." Journal of Water and Land Development 28, no. 1 (March 1, 2016): 61–67. http://dx.doi.org/10.1515/jwld-2016-0006.

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Abstract The paper presents an analysis of hydraulic load in a wastewater treatment plant (WTP) in Jasło. The study was based on the records of daily sewage volume entering the treatment plant within a multi-year period of 2010–2014. The analysis took into account the average daily amount of incoming sewage, the maximum daily peaking factor for the incoming sewage, changes in the sewage volume depending on specific month and day of a week, and class intervals with the greatest frequency of occurrence. The analysis revealed that the average daily volume of the sewage entering the WTP in Jasło in the investigated multi-year period was 13 045 m3·d−1. The amount of incoming sewage was variable, as evidenced by the maximum peaking factors of daily sewage inflow that ranged from 1.07 to 2.78, depending on a specific month. The sewage admission was the largest in March, May and June and on Saturdays. Sewage volume interval most often occurring at the WTP in Jasło was the one between 8 000 and 10 000 m3·d−1. The study results indicated that the facility was hydraulically underloaded.

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TANI, Naoto, Tsuneki INOUE, Satoshi YOSHIDA, Mamoru NAKANO, Koh SHIMAMOTO, and Yasuji NISHII. "Isolation of Enteric Viruses from Sewage of a Sewage Treatment Plant." Journal of the Japanese Association for Infectious Diseases 62, no. 7 (1988): 636–40. http://dx.doi.org/10.11150/kansenshogakuzasshi1970.62.636.

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Włodarczyk, Elżbieta, Marta Próba, and Lidia Wolny. "Ecotoxicity Assessment of Stabilized Sewage Sludge from Municipal Sewage Treatment Plant." Civil And Environmental Engineering Reports 22, no. 3 (September 1, 2016): 157–66. http://dx.doi.org/10.1515/ceer-2016-0044.

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Abstract Aim of this study was to evaluate the ecotoxicity of municipal sewage sludge conditioned with polyelectrolytes, taken from selected sewage treatment plant. Using the bioindication analysis overall toxicity was assessed, which allows to know the total toxicity of all the harmful substances contained in sewage sludge, in many cases acting synergistically. To prepare a sample of sludge for the basic test, all analyses were performed with a ratio of liquid to solid of 10:1 (water extract). Daphnia pulex biological screening test was used. A dilution series of an water extract of sludge were prepared to include within its scope the lowest concentration that causes 100% effect and the highest producing less than 10% of the effect within a specified range of the assay. The results of the test were read after 24 and 48 hours. Based on the research and analysis of test results it proved that the sewage sludge conditioned with polyelectrolytes exhibit the characteristics of eco-toxic.

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Stanaszek-Tomal, Elzbieta, and Maria Fiertak. "Biological Corrosion in the Sewage System and the Sewage Treatment Plant." Procedia Engineering 161 (2016): 116–20. http://dx.doi.org/10.1016/j.proeng.2016.08.507.

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Peng, Zhang E., Jian Ping Luo, and Xia Zhang. "The Optimized Model of Town Sewage Structure Charge and its Computing." Advanced Materials Research 726-731 (August 2013): 1190–93. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.1190.

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In reference to international regional sewage pipe network and sewage treatment plant planning, the actual situation of China's villages and small town was investigated. According to the costs data from presented sewage pipe and sewage treatment plant construction system, the model on the sewage pipe network and sewage treatment plant charge was obtained. Then the model was simplified to be calculating the shortest distance between the wastewater treatment plant and the effluent discharge point. The suitable computing method for the shortest distance is building the minimum spanning tree. The software for computing was written with prim algorithm. The computing results can be used as a planning and design reference of sewage pipe network. The model method can be used for design program to select long-distance transmission or local treatment of the sewage.

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Ali, H. Mohammed, and K. C. Udaiyakumar. "TREATMENT PLANT FOR DOMESTIC EFFLUENT DISCHARGE – (HOUSING AREA)." Engineering Heritage Journal 5, no. 2 (September 10, 2021): 45–48. http://dx.doi.org/10.26480/gwk.02.2021.45.48.

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People in developing nations, like INDIA, INDONESIA, MALAYSIA, BANGLADESH, SRILANKA, AFRICA, THAILAND and Developing Countries etc., face a great deal of issues as far as sewage the executives. This is on the grounds that sanitation arrangement is horribly insufficient. A great many people don’t approach clean toilets, and a lot of fecal waste are released to the earth without satisfactory treatment. In perspective on this, an investigation was done with the point of surveying information, practices, observations, and encounters of family unit on sanitation and sewage the executives in Chennai. The aim of this project is to treat the waste water and reuse the waste water for domestic purpose such as flushing and gardening with minimum cost. The family unit overview results demonstrate that the sewage system stays immature, and there is no reasonable vision to improve the framework created in the family unit isn’t re- utilized, it is for the most part discharged outside. In the tempest water seepage framework legitimately. Sewage treatment from the treatment plants is depleted into surface water bodies, for example, waterways and the sea.

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Ostojski, Mieczysław Stefan. "Mathematical model of sewage treatment plant operation." Ecological Modelling 39, no. 1-2 (November 1987): 67–83. http://dx.doi.org/10.1016/0304-3800(87)90014-7.

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KITAI, Yoshito. "Tecnology Trends of Johkasou（Sewage Treatment Plant）." Journal of Environmental Conservation Engineering 51, no. 3 (May 20, 2022): 138–42. http://dx.doi.org/10.5956/jriet.51.3_138.

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Chang, Yu Sheng. "The Life Cycle Assessment of Carbon Dioxide Emission of Four Major Sewage Treatment Plants in Taiwan." Applied Mechanics and Materials 764-765 (May 2015): 1154–58. http://dx.doi.org/10.4028/www.scientific.net/amm.764-765.1154.

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The sewage comes from buildings is drained into public sewers. The sewage is then treated in a sewage treatment plant to meet the sanitation standards before being discharged to the water cycle in nature. The sewage treatment process consumes energy and produce CO2. In this research, the idea of streamlined life cycle assessment was applied. The CO2 emission of sewage treatment was assessed from direct energy consumption of four major sewage treatment plants in Taiwan. The results show that the unit CO2 emission of sewage treatment calculated from four plants is 0.174 kg-CO2/m3. The CO2 emission at in-plant sewage treatment stage takes more than 95% of total CO2 emission for most plants. The results suggest that CO2 emission of sewage treatment can be calculated from energy consumption at in-plant sewage treatment stage to simplify the calculation. This database will be important reference for water resource research.

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Meijer, Hugo A. "Rotterdam-Dokhaven Sewage Treatment Plant; A Large Sewage Treatment Plant in the Midst of a Developing Residential Quarter." Water Science and Technology 20, no. 4-5 (April 1, 1988): 267–74. http://dx.doi.org/10.2166/wst.1988.0176.

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The Rotterdam-Dokhaven Sewage Treatment Plant (STP) is operational since July 1987.With a biological capacity of 470,000 population equivalents it is not nearly the largest STP in the Netherlands. But an underground sewage treatment plant with a city park on top, in the midst of a developing residential quarter is very unusual. The designers had to be innovative in order to meet the severe environmental requirements based on the Nuisance Act. The plant is characterised by extensive ventilation facilities, a two-step activated sludge process: A-B system, application of PVC-lining on large-scale to prevent concrete corrosion, a separate sludge handling site where the washed ventilation air is expelled by a chimney stack.

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Chiemchaisri, Chart, Wilai Chiemchaisri, Sirilak Prasertkulsak, Nutta Sangnarin Hamjinda, Thammarat Kootatep, Takanori Itonaga, and Kazuo Yamamoto. "Evaluation of treated sewage reuse potential and membrane-based water reuse technology for the Bangkok Metropolitan area." Water Science and Technology 72, no. 11 (August 8, 2015): 1954–61. http://dx.doi.org/10.2166/wst.2015.420.

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Only 3.4% of total water use in the Bangkok Metropolitan area is reused treated sewage. This study anticipates that further treated-sewage reuse in industrial sectors, commercial buildings and public parks, in addition to present in-plant and street cleaning purposes, would increase total water reuse to about 10%. New water reuse technologies using membrane bioreactor (MBR) and microfiltration (MF) as tertiary treatment were implemented to assess their potential for their application in the Bangkok Metropolitan area. The MBR was applied to the treatment of raw sewage in a central treatment plant of the Bangkok Metropolitan area. The MF membrane was used for polishing the effluent of the treatment plant. The results show the quality of treated water from MBR and tertiary MF treatment could meet stringent water reuse quality standard in terms of biochemical oxygen demand, suspended solids and biological parameters. Constant permeate flux of the membrane was achieved over long-term operation, during which inorganic fouling was observed. This is due to the fact that incoming sewage contains a considerable amount of inorganic constituents contributed from storm water and street inlet in the combined sewerage systems. The total cost of the MBR for sewage treatment and production of reuse water is estimated to be about USD1.10/m3.

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Schöniger-Hekele, Maximilian, Dagmar Petermann, Beate Weber, and Christian Müller. "Tropheryma whipplei in the Environment: Survey of Sewage Plant Influxes and Sewage Plant Workers." Applied and Environmental Microbiology 73, no. 6 (February 2, 2007): 2033–35. http://dx.doi.org/10.1128/aem.02335-06.

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ABSTRACT We studied the prevalence of Tropheryma whipplei in influxes to 46 sewage treatment plants and in stool, mouthwash fluids, and dental plaques of 64 healthy workers in those facilities and 146 disease control patients. T. whipplei was found in sewage water, in stool of healthy individuals, and significantly more often in stool of workers exposed to sewage water.

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Bialdiga, Robin. "Function of a Sewage Treatment Plant in Rodgau, Germany." ICONIET PROCEEDING 2, no. 1 (February 12, 2019): 49–52. http://dx.doi.org/10.33555/iconiet.v2i1.9.

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Rodgau has nearly 50.000 citizens and have their own sewage treatment plant. The wastewater of the whole town has to be treated to the point where it can be released in the back which gives the town its name, the Rodgau. There are two main sources of wastewater, municipal and industrial waste water. (www.rodgau.de 8.9.17) The objective of Sewage Treatment in Rodgau especially is that the waste water after beingprocess can go directly to Rodau river. The drinking water of Rodgau is not coming from thesewage treatment plant. (Bundesministerium der Justiz und für Verbraucherschutz) The sewage Treatment Plant in Rodgau has the capacity up to 75.000 citizen value (EW). In this sewage treatment there are physical, chemical and biological processes. In the chemical processes there are neutralization, oxidation and reduction processes. The physical treatment including sedimentation, extraction, and adsorption process. Then main steps of the sewage treatment are screening and filtration of the bigger pollutants, transforming of elements and separating the sludge.( ATV-Handbuch (1999)) Different options can be seen which were used in the Rodgau plant. The Rodgau sewagetreatment plant is at state of the art, very efficient and can be a great example for sewagetreatment plants of other cities.

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Hansen, O. B., C. Jacobsen, and P. Skat Nielsen. "Storm Water Loading of Greater Copenhagen Sewage Treatment Plant." Water Science and Technology 27, no. 12 (June 1, 1993): 183–86. http://dx.doi.org/10.2166/wst.1993.0297.

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Copenhagen's plans to cut pollution loads from combined sewer overflows involves increased storage capacity in the sewer system, real time control of that system, and increased hydraulic loading for the treatment plant. Modelling studies have been used to examine the consequences.

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Gong, Yang, Qi Peishi, Wang Baozhen, and Sui Jun. "An Optimization Study of the Planning of Water Pollution Control for Majiagou Stream in Harbin, China." Water Science and Technology 21, no. 8-9 (August 1, 1989): 995–1002. http://dx.doi.org/10.2166/wst.1989.0301.

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A study on the optimization planning of water pollution control for Majiagou Stream in Harbin was carried out. Four water pollution control options were considered. The option regarded as most feasible, both technically and economically, involved the construction and operation of a wastewater treatment works with a capacity of 150,000 m3/day on the upper reach of the stream. The effluent would be discharged into the upper reach of Majiagou Stream and would be used as a water source for the stream, while an interceptor sewer was to be constructed on the lower reach of the stream to collect wastewaters in the lower reach basin and transport them to a centralized wastewater treatment plant. An optimization study of the relationship between the sewerage interceptor and the sewage treatment plant on the upper reach was conducted. In this study, a comprehensive water pollution control plan, including the sewerage system, sewage treatment plant, and the use of treated wastewater as a water source for Majiagou Stream, was considered as a systematic problem in which many factors were taken into account. Cost-benefit analysis was carried out for both the sewage treatment plant and the interceptors by means of empirical regression equations and diagrams in which various curves showed the relationships between the important factors.

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Hawrylik, Eliza, and Andrzej Butarewicz. "Toxicity assessment of sewage sludge from municipal sewage treatment plants." Ekonomia i Środowisko - Economics and Environment 82, no. 3 (October 26, 2022): 257–68. http://dx.doi.org/10.34659/eis.2022.82.3.491.

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The aim of this study was to assess the toxicity of sewage sludge from the municipal sewage treatment plant in Bialystok. Raw sewage, sewage sludge from the primary settling tank, activated sludge, sludge before the fermentation chamber, recirculated sludge and sewage sludge after fermentation and dehydration on press were tested. The Microtox Model 500 kit using Aliivibrio fischeri luminescent bacteria was used for the toxicity analyzes. The EC50 index (indicating the concentration of toxic substances resulting in a 50% reduction in the intensity of luminescence of the bacterial strains used) converted into the TUa toxicity units was adopted as the value describing the toxicity of the tested media. The obtained results showed high and very high ecotoxicity of raw sewage and sewage sludge from the primary settling tank, sludge in front of the fermentation chamber and after fermentation and dehydration in the press. The use of tests determining the toxicity of sewage flowing into the sewage treatment plant and sewage sludge generated at various stages of the treatment process allows to detect the danger associated with the uncontrolled discharge of toxic substances into the sewage system.

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Suchowska-Kisielewicz, Monika, Aleksandra Sieciechowicz, and Zofia Sadecka. "The Efficiency of Nitrogen Compounds Removal in Wastewater Treatment Plant." Civil and Environmental Engineering Reports 28, no. 3 (September 1, 2018): 5–16. http://dx.doi.org/10.2478/ceer-2018-0031.

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Abstract In sewage treatment plants for removing nitrogen compounds are used biological processes of nitrification and denitrification. The parameters determining the efficiency of biological processes of nitrogen removal are organic carbon ratio (BOD5) to total Kjeldahl nitrogen (TKN), temperature and pH. The impact of these parameters on the operation of the sewage treatment plant with an RLM of 45,000 based on operational data from the period 2011-2013 has been assessed. The efficiency of removing nitrogen compounds from sewage in the analysed treatment plant depended on the temperature of sewage and the quotient BOD5/TKN. Even at the optimal ranges of BOD5/TKN ratio temperature at 10°C nitrogen concentration in the treated wastewater was about 3 times higher than the limit value, and the removal efficiency of nitrogen varied between about 30 to 60%.

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Ankit, Ankit, and S. K. Singh. "An Overview of Performance Evaluation of Sewage Treatment Plant." Journal of University of Shanghai for Science and Technology 23, no. 05 (May 28, 2021): 306–16. http://dx.doi.org/10.51201/jusst/21/04238.

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Sewage whether treated or untreated, ultimately discharge in lakes, rivers, streams, and oceans. We consider groundwater as pure, but unfortunately, sewage is one of the major reasons behind wastewater-associated diseases. Nearly 78% of the water flows back to the environment without any treatment. This can lead to numerous health and environmental problems so it is better to treat wastewater before disposal and further proper management can help in meeting the public’s water demand. As per today’s scenario, a number of innovations are required to operate treatment plants at high efficiency because of increasing domestic, commercial, and industrial waste. And this rise is taking place due to several reasons – urbanization, increasing population, economic development, and improved living conditions, etc. Nowadays people of both urban and peri-urban areas are using wastewater to irrigate their crops, often because they do not have any alternate source of irrigation water. New technologies are continuously being introduced in the sewage treatment plants to exhibit good performance. The paper focuses on reviewing the various sewage treatment methods and their results.

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Strzelczyk, Maria, and Aleksandra Steinhoff-Wrześniewska. "Effectiveness of domestic rural wastewater treatment in soil-plant system." Geology, Geophysics and Environment 45, no. 4 (January 25, 2020): 247. http://dx.doi.org/10.7494/geol.2019.45.4.247.

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The characteristics of Polish rural agglomerations indicate that only 32% of these areas are villages typified by compact buildings where the use of a collective sewage system is economically justified. In other areas, it is necessary to apply solutions that allow for the sewage utilization in place of their creation and safe discharge into the environment, e.g. in the form of home systems based on biological processes, e.g. in soil-plant systems. The purpose of the work was to determine the soil-plant efficiency of wastewater treatment with the use of so-called energy plants. The experiment was conducted in 2012–2014 in lysimeters at a depth of 130 cm and 100 cm in diameter. These were submerged in the ground, filled with sand clay and equipped with installations enabling the drain-age of gravity water in the form of lysimeter effluents. Two species of plants were used: Miscanthu giganteus and Sida hermaphrodita (L.) Rusby. They were irrigated with pre-treated domestic sewage (variant I – 1200 mm · year−1 and variant II – 1600 mm · year−1). For irrigation, sewage from a group of buildings inhabited by six families was used. Raw domestic sewage was discharged into the tank, consisting of four chambers, which constituted a relatively good level of pre-cleaning. For the irrigation of plants in the experiment, pre-treated sewage was used. In order to determine the effectiveness of wastewater treatment in the soil-plant environment, the concentrations of the following components were determined in the effluents: TSS, BOD5, COD, Ntot. The quantities of pollutants contained in the sewage were characterized by considerable variability, especially in relation to COD (390.6–1583.0 mg O2· dm−3) and Ntot (47.0–250.2 mg N · dm−3).

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Gautam, Bikram, Anjita Rajbhanshi, and Rameshwar Adhikari. "Bacterial Load Reduction in Guheswori Sewage Treatment Plant, Kathmandu, Nepal." Journal of College of Medical Sciences-Nepal 15, no. 1 (March 14, 2019): 40–44. http://dx.doi.org/10.3126/jcmsn.v15i1.19914.

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Background: Water sources such as lakes, ponds, river etc. have been continuously contaminated by the micro organisms and chemicals. The former can pose a significant threat to human health. This work aims at detecting the bacterial load before and after the sewage treatment and hence isolating pathogens from the sewage before primary treatment and secondary treated effluent. Methods: Grab sampling (50mL sewage before primary treatment and secondary treated effluent) was performed for 20 days in the Guheswori sewage treatment plant. The reduction in microbial load was determined through heterotrophic plate count. Pathogens were screened from the effluent obtained from the secondary treatment plant. Results: Bacterial load reduction was found to be about 48.02% on average. The observed bacterial load reduction might have been caused by bacteriophage flocculation and sedimentation. Pathogens isolated from the treated effluent were Escherichia coli, Salmonella Typhi, Enterococcus faecalis, Staphylococcus aureus, Coagulase negative Staphylococcus (CONS), Citrobacter fruendii, Enterobacter aerogenes, Proteus mirabilis, P. vulgaris, Pseudomonas aeruginosa. Conclusions: It has been found that the sewage treatment plant helps to reduce the bacterial load which is, however, not capable of effluent polishing where all pathogens are killed.

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Kim, Jinam, Seohyun Kim, HoJin Jang, Hwandon Jun, and Keugtae Kim. "A Study on the Wastewater Treatment Self-Diagnosis Web Application to Establish an Intelligent Wastewater Treatment Plant." Journal of the Korean Society of Hazard Mitigation 22, no. 6 (December 31, 2022): 417–24. http://dx.doi.org/10.9798/kosham.2022.22.6.417.

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As sewage treatment facilities are classified as energy-consuming facilities and the need for energy-saving measures has emerged, the Ministry of Environment has established the Basic Plan for Energy Self-Reliance of Public Sewage Treatment Facilities to achieve 50% energy independence by 2030. Therefore, this study conducted an ICT-based self-diagnosis web application study for sewage treatment facilities that provided a simulator utilization plan to site operators of sewage treatment facilities and suggested measures for the results of self-diagnosis through the development of a removal rate-based sewage treatment self-diagnosis application. Using the Massflow3 simulator, the measures and validation of abnormal conditions for BOD, SS, TN, and TP were conducted, and a web-based self-diagnosis algorithm was implemented to enable the operator to easily control the process based on the simulation results.

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Hu, Ming, and Lei Li. "Treatment Technology of Microbial Landscape Aquatic Plants for Water Pollution." Advances in Materials Science and Engineering 2021 (July 20, 2021): 1–12. http://dx.doi.org/10.1155/2021/4409913.

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With the rapid development of industrial and agricultural production, the rapid growth of population, and the acceleration of urbanization, the problem of water pollution is becoming more and more serious. Water shortages and pollution disrupt the balance of ecosystems and seriously limit people’s health and rapid economic development. Nowadays, the method of repairing sewage bodies using microbial landscape aquatic plants is attracting more and more attention, and it is a big challenge to maintain the sustainable development of human beings and nature. This paper uses floating rafts to combine microorganisms and landscape aquatic plants to conduct sewage treatment experiments. According to microorganisms, landscape aquatic plants absorb nutrients in the water body, examine the changes in water quality during the restoration of microorganisms’ landscape aquatic plants, and establish the growth of microorganisms’ landscape aquatic plants. The relationship with changes in water quality aims to provide a theoretical basis for the treatment of slow-flowing water bodies such as lakes, reservoirs, large artificial ponds, and rivers. In this paper, the experiments are divided into four groups (A (experimental sewage + microbial inoculant), B (experimental sewage + plant), C (experimental sewage + microbial inoculant + plant), and D (experimental sewage)). It can be divided into the total nitrogen content, total phosphorus content, and COD value data, and chromaticity detection of each group of the test is continuously monitored weekly to comprehensively detect and observe the repair effect on contaminated water bodies. The experiment proved that the water quality of the three treatment groups was significantly clearer than that of the blank control group, and its clarity: microorganism + plant > microorganism > plant > blank control group. This shows that the combination of microorganisms and landscape aquatic plants can effectively reduce the various pollutants contained in sewage and reduce the color of sewage. Treating sewage using plant technology that combines microorganisms is feasible and promising.

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Huang, Xiao Ping, and Qi Xing Qing. "The Automatic Control System Based on PROFIBUS for the City Sewage Treatment." Applied Mechanics and Materials 385-386 (August 2013): 857–61. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.857.

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On the basis of the computerized technological process control of sewage treatment in a urban sewage treatment plant in the Zone of Nanning, the author had brought forward a plan of PROFIBUS that based on automatic control system for sewage treatment, and designed the automatic control system diagram and the PROFIBUS network diagram for sewage treatment plant. At the same time, the author also made a study of techniques to control the sewage aeration, which was the most difficult problem in sewage treatment process. The fuzzy controller could indicate the changes of the water quality in treated sewage, effectively controlled the volume of aeration and then cut down the operation costs,it had produced good economic and social benefits.

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Kulkarni, Bhakti, R. V. Wanjule, and H. H. Shinde. "Study On Sewage Quality From Sewage Treatment Plant At Vashi, Navi Mumbai." Materials Today: Proceedings 5, no. 1 (2018): 1859–63. http://dx.doi.org/10.1016/j.matpr.2017.11.286.

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Journal articles on the topic 'Sewage treatment plant'

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