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Journal articles on the topic 'Domestic wastewater treatment'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Karpuzcu, Mehmet, Nurdan Baykuş, and Adem Yurtsever. "AN EXPERIMENTAL STUDY ON TREATMENT OF DOMESTIC WASTEWATER BY NATURAL SOIL." e-Journal of New World Sciences Academy 15, no. 4 (October 31, 2020): 196–208. http://dx.doi.org/10.12739/nwsa.2020.15.4.1a0462.

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In recent centuries, issues such as efficient use of water resources, water quality and water supply have become important for many countries. Countries have focused on developing strategies that can protect water and using water in the most efficient way including treatment of wastewater. In addition, it has become important to provide sustainability of the natural treatment systems instead of complex and expensive wastewater treatment facilities that are rapidly developing. On the other hand, the researches on natural treatment of wastewater are still inadequate. Therefore, the feasibility and performance of new stragtegies about natural treatment systems should be developed and evaluated. For this purpose, a pilot facility was developed which utilizes a natural soil-column with different gradations in order to provide the treatment of domestic wastewater. In this way, not only the wastewater treatment performances of different soils but also some engineering properties of soils affected by wastewater filtration were examined. As a result of this research, it was found that soil filtration can be effective in the treatment of wastewater subjected to pre-sedimentation and can be affected by the pollutant load of the filtration environment.

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2

Seminskaya, O. O., M. N. Balakina, D. D. Kucheruk, and V. V. Goncharuk. "Microfiltration treatment of domestic wastewater." Journal of Water Chemistry and Technology 39, no. 4 (July 2017): 233–36. http://dx.doi.org/10.3103/s1063455x17040099.

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3

SAKURAI, Toshiro. "Special issue : domestic wastewater treatment symposium.Present state and problems of domestic wastewater treatment technology." Journal of Environmental Conservation Engineering 21, no. 10 (1992): 595–98. http://dx.doi.org/10.5956/jriet.21.595.

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4

IMAI, Tsuyoshi, Masayuki FUKAGAWA, Masao UKITA, Masahiko SEKINE, and Takaya HIGUCHI. "Simultaneous treatment of garbage and domestic wastewater using an improved domestic wastewater treatment tank." Journal of Environmental Conservation Engineering 30, no. 10 (2001): 810–17. http://dx.doi.org/10.5956/jriet.30.810.

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5

Kyriienko, P. G., O. V. Betin, and N. V. Kuznetsova. "Small sewage wastewater treatment plants for domestic wastewater." Environmental safety and natural resources 27, no. 3 (September 28, 2018): 59–67. http://dx.doi.org/10.32347/2411-4049.2018.3.59-67.

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6

Faulwetter, J. L., M. D. Burr, A. B. Cunningham, F. M. Stewart, A. K. Camper, and O. R. Stein. "Floating treatment wetlands for domestic wastewater treatment." Water Science and Technology 64, no. 10 (November 1, 2011): 2089–95. http://dx.doi.org/10.2166/wst.2011.576.

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Floating islands are a form of treatment wetland characterized by a mat of synthetic matrix at the water surface into which macrophytes can be planted and through which water passes. We evaluated two matrix materials for treating domestic wastewater, recycled plastic and recycled carpet fibers, for chemical oxygen demand (COD) and nitrogen removal. These materials were compared to pea gravel or open water (control). Experiments were conducted in laboratory scale columns fed with synthetic wastewater containing COD, organic and inorganic nitrogen, and mineral salts. Columns were unplanted, naturally inoculated, and operated in batch mode with continuous recirculation and aeration. COD was efficiently removed in all systems examined (>90% removal). Ammonia was efficiently removed by nitrification. Removal of total dissolved N was ∼50% by day 28, by which time most remaining nitrogen was present as NO3-N. Complete removal of NO3-N by denitrification was accomplished by dosing columns with molasses. Microbial communities of interest were visualized with denaturing gradient gel electrophoresis (DGGE) by targeting specific functional genes. Shifts in the denitrifying community were observed post-molasses addition, when nitrate levels decreased. The conditioning time for reliable nitrification was determined to be approximately three months. These results suggest that floating treatment wetlands are a viable alternative for domestic wastewater treatment.

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7

Koyuncu, Serdar, and Sema Arıman. "Domestic wastewater treatment by real-scale electrocoagulation process." Water Science and Technology 81, no. 4 (February 15, 2020): 656–67. http://dx.doi.org/10.2166/wst.2020.128.

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Abstract In this study, domestic wastewaters originating from a settlement with a population of 17,500 were treated by electrocoagulation process in a real-scale EC plant and the economic applicability of the process was investigated. The removal efficiencies of control parameters in the influent and effluent of the real-scale treatment plant such as suspended solids (SS), biological oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP) and changes of pH and conductivity parameters were monitored for 12 months. The obtained data were evaluated according to European Urban Wastewater Treatment Directive, Turkish Water Pollution Control Regulation and Turkish Urban Wastewater Treatment Regulation. According to the results obtained, the removal efficiencies of the pollutant parameters were achieved in the range of 72–83% for SS, 67–80% for COD, 69–81% for BOD, 21–47% for TN and 27–46% for TP. Considering the Turkish wastewater discharge regulations, it can be concluded that the discharge standards for SS, COD and BOD parameters were achieved while they were not achieved in certain periods for TN and TP. In addition, the energy consumption and the operating cost of this real-scale plant were determined to be 0.49–0.54 kWh/m3 and 0.24–0.28 EUR/m3, respectively.

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8

Gnanadipathy, A., and C. Polprasert. "Treatment of a Domestic Wastewater with UASB Reactors." Water Science and Technology 27, no. 1 (January 1, 1993): 195–203. http://dx.doi.org/10.2166/wst.1993.0047.

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This study investigated a feasibility of employing pilot-scale upflow anaerobic sludge blanket (UASB) reactors to treat a domestic (or relatively low-strength) wastewater. Four 30-1 UASB reactors, each with a 0.15-m inner diameter and 2-m height were used in this study which was conducted at an average ambient temperature of 30°C. Three reactors were inoculated with different types of seed sludge, namely: sludge from a facultative waste stabilization pond, anaerobically digested sludge and sludge from a UASB reactor treating a distillery wastewater. The fourth reactor was started without inoculum and was studied for possible self inoculation. Domestic wastewater was mixed with a stock glucose solution to increase the influent COD concentrations to about 600 mg/l. All four reactors were started with a hydraulic retention time (HRT) of 24 h, and this HRT was later reduced to 12, 6 and 3 h, consecutively, corresponding to the organic loading rates (OLR) of 0.4-0.6, 0.9-1.4, 1.8-2.8 and 3.6-6.0 kg COD/(m3.d), respectively. At the highest OLR or shortest HRT, there was about 90% removal of the influent COD in Reactors 1-3 while the methane (CH4) production rate was found to be 150 N1/kg COD removed with a methane (CH4) content of 75%. Reactor 4, without inoculation, could not develop sufficient amount of biomass to withstand the high OLR and its performance deteriorated at the HRT of 3 and 6h. The scanning electron microscopic (SEM) examinations of the sludge floc revealed the predominance of Methanothrix-like bacteria in all reactors. The experimental results obtained have suggested a technical feasibility of employing UASB reactors to treat domestic wastewaters. The facultative waste stabilization pond sludge and anaerobically digested sludge were found to be suitable inoculum sources for the UASB reactors treating this low-strength wastewater.

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9

Correia, Anabela, Alexandra Franco, Teresa Chambino, and Filomena Bartolomeu. "Aluminium Anodizing Waste as Coagulant for Domestic Wastewater." Materials Science Forum 587-588 (June 2008): 768–72. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.768.

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The use of Al mineral salts in wastewater treatment is a well known process and most common [1]. For a long time we have been studying the feasibility of the aluminium anodizing waste as coagulant. In previous works, we have tested anodizing sludges in the treatment of municipal wastewaters and of paint industry wastewater in batch processes [2]. In this study we have tested the use of the aluminium anodizing waste as coagulant for the treatment of municipal wastewaters in continuous processes. Different muds from nine different anodizing facilities were collected and prepared for use as coagulant. In addition, two mud mixtures were prepared to study the influence of the combination of different muds in the efficiency of the treatment. The tests were made, being controlled important parameters such as pH, turbidity and chemical oxygen demand (COD). We have verified that the coagulation process was effective for all the muds and mixtures tested. The formation of flocs that settle rapidly was visible and the Turbidity and COD reduction obtained has demonstrated the efficiency of the anodizing mud as coagulant. Aluminium anodizing plants generate a large quantity of wastes that are a burden to the industry. This works regards the reuse of anodizing sludges in wastewater treatment.

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10

Farooq, Shaukat, and Abdul Bari. "Physico‐chemical treatment of domestic wastewater." Environmental Technology Letters 7, no. 1-12 (January 1986): 87–98. http://dx.doi.org/10.1080/09593338609384394.

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11

Tekeli, Ayça N., and Ayla Arslan. "Characterization and assessment of “Kullar Domestic Wastewater Treatment Plant” wastewaters." Environmental Monitoring and Assessment 138, no. 1-3 (June 14, 2007): 191–99. http://dx.doi.org/10.1007/s10661-007-9763-6.

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12

Chen, Fang, and Qiang Yao. "The Development of Rural Domestic Wastewater Treatment in China." Advanced Materials Research 1073-1076 (December 2014): 829–32. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.829.

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Agriculture is one of the foundations of China’s national economy. The rural population is more than half of China’s total population. However, rural domestic wastewater treatment has not been solved, mostly household wastewater untreated directly discharged into nearby surface water bodies. With the development of rural economy, domestic wastewater treatment has become a serious problem in rural sustainable development in China. Emission characteristics and status of rural domestic wastewater treatment in China were presented in this paper. On this basis, several rural wastewater treatment technologies commonly used were reviewed in China rural area, including septic tanks, land treatment system, methane-generating pit, stabilization lagoon and constructed wetland. The current problems and future development in rural domestic wastewater treatment were discussed, and some suggestions proposed. On the one hand, new integrated technology should be actively developed in rural domestic wastewater. On the other hand, the management of rural domestic wastewater should be strengthened. Thus, effective protection will be provided for the sustainable development of rural areas in China.

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13

Suhartana, Suhartana, and Pardoyo Pardoyo. "Activation of Natural Zeolite and Its Application for Adsorbents in Domestic Wastewater Treatment in Tembalang District, Semarang City." Jurnal Kimia Sains dan Aplikasi 23, no. 1 (January 27, 2020): 28–33. http://dx.doi.org/10.14710/jksa.23.1.28-33.

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Tembalang is one of the districts in the city of Semarang whose economic growth is rapid. There are 12 sub-districts in Tembalang district, one of which is the Tembalang sub-district, which is within the campus area of Diponegoro University. When compared with other sub-district in the Tembalang district, the Tembalang sub-district community's need for clean water and domestic wastewater disposal is very high because of its dense population. Handling domestic wastewater is one of the environmental problems, which is interesting to study. Domestic wastewater, in addition to causing environmental pollution, can also cause discomfort and even health problems. One way to reduce the impact of domestic wastewater is to treat domestic wastewater before the environment is discharged. This study aims to describe the character of domestic wastewater in Tembalang sub-district, Tembalang district, Semarang city, and the use of activated zeolites and activated zeolites to reduce COD, pH, BOD, and TSS in domestic wastewater. Also, to compare the parameters of wastewater with regulations in force (Minister of Environment and Forestry Regulation No: 68 of 2016). This research is expected to improve the quality of domestic wastewater by adsorption using natural zeolite and activated zeolite adsorbents. The results showed that the adsorption treatment with natural zeolites and activated zeolites significantly improved water quality. The results of adsorption by natural zeolites showed a decrease in COD of 21.8%, a pH of 11.5%, BOD of 9.2%, and a TSS of 10.8%. Whereas adsorption by HCl-activated zeolite resulted in a decrease in COD of 78.9%, pH of 16.2%, BOD of 11.8% & TSS of 74.4%. While H2SO4-activated natural zeolite reduced COD by 85.5%, pH 17.9%, BOD 12.6% and TSS 89.7%.

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14

Egamberdiev, N. B., Zilola Sharipjonova, Bobur Nasibov, A. O. Khomidov, M. I. Alimova, and A. A. Abdumalikov. "Biological treatment of industrial and domestic wastewater of a brewery in Uzbekistan." E3S Web of Conferences 264 (2021): 01055. http://dx.doi.org/10.1051/e3sconf/202126401055.

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During the period of water shortage in the Republic, modern resource-saving irrigation methods and the use of purified and industrial waters and their reuse in irrigation is an urgent problem in ecology. Among the methods for treating industrial wastewater in a cheaper, cost effective way is the biological treatment method. It is the study of the effectiveness of biological treatment of industrial wastewater from primary winemaking using selected strains of aquatic plants (pistia). The object of wastewater research is selecting a Pistia algae strain, carrying out biochemical, hydrochemical analyses of wastewater before and after treatment, and the chemical composition of the Pistia algae biomass. All studies were carried out according to the standard studies of UzGOST for waste and drinking water and algological methods used by the Institute of Botany of ANRUz, State Enterprise "Institute GIDROINGEO", etc. The efficiency of biological purification of wastewaters of primary winemaking by higher aquatic plants of the pistia was established. With the help of the research carried out, the wastewater treatment of the food plant, in particular, the Kibray wine station with the Pistia algae, was established: the optimal parameters of growth, development and purification capacity of pistia algae were established for various variants of experiments and wastewater samples; designed and assembled a semi-industrial plant for biological wastewater treatment of the Kibray wine station and carried out work on industrial wastewater treatment. Wastewater from the Kibray wine station contains organic compounds, namely yeast sediments, proteins, fats, carbohydrates, fiber, which are food for Pistia algae. Pistia biomass obtained after cultivation in wastewater after sterilization can be used as feed in livestock and poultry farming, as it contains a large number of proteins, fats and carbohydrates.

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15

Capodaglio, Andrea G., and Arianna Callegari. "Domestic wastewater treatment with a decentralized, simple technology biomass concentrator reactor." Journal of Water, Sanitation and Hygiene for Development 6, no. 3 (July 8, 2016): 507–10. http://dx.doi.org/10.2166/washdev.2016.042.

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A new type of membrane-like aerobic reactor initially designed for the degradation of hydrocarbon-derived groundwater contaminants was tested for treating domestic wastewater. The biomass concentrator reactor (BCR) consists of an enclosed, aerated tank containing a graded filtration medium with the function of solids separation, and was previously used to treat industrial wastewaters containing refractory substances, with good results. It is a small-footprint reactor that could be operated in remote areas with no long-range sewage connections, with few appropriate controls and little monitoring instrumentation. The BCR was run for 90 days in pilot conditions with domestic wastewater feed. Results of the application are illustrated in the paper.

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16

Ahn, Kyu-Hong, and Kyung-Guen Song. "Treatment of domestic wastewater using microfiltration for reuse of wastewater." Desalination 126, no. 1-3 (November 1999): 7–14. http://dx.doi.org/10.1016/s0011-9164(99)00150-2.

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17

SCHRAMM, SOPHIE. "SEMICENTRALISED WATER SUPPLY AND TREATMENT: OPTIONS FOR THE DYNAMIC URBAN AREA OF HANOI, VIETNAM." Journal of Environmental Assessment Policy and Management 13, no. 02 (June 2011): 285–314. http://dx.doi.org/10.1142/s1464333211003882.

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Hanoi, the capital of Vietnam, is experiencing rapid urbanisation coupled with high economic growth rates. This situation is both a challenge and an opportunity for the upgrading of existing technical infrastructures. Regarding wastewater treatment, the situation in Hanoi today is characterised by a lack of wastewater treatment plants, processing only a small fraction of the accumulating wastewater. Prevalent means of sanitation are septic tanks installed under buildings for the collection of domestic wastewaters, with overflowing liquids draining into the groundwater in an uncontrolled manner. This decentralised means of sanitation is therefore currently not able to clean domestic wastewaters in an effective way. This paper explores circumstances under which a semi-centralised approach can offer a sustainable solution to cope with these challenges in Hanoi. The approach has been designed to meet the challenges of fast growing urban areas around the world.

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18

Mohite, Yuvraj Aravind. "Domestic Wastewater Treatment by Vermifiltration- A Review." International Journal for Research in Applied Science and Engineering Technology 7, no. 7 (July 31, 2019): 396–98. http://dx.doi.org/10.22214/ijraset.2019.7059.

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19

HOSOMI, Masaaki, and Ryuichi SUDO. "Treatment of Domestic Wastewater by Wetland Systems." Japan journal of water pollution research 14, no. 10 (1991): 674–81. http://dx.doi.org/10.2965/jswe1978.14.674.

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20

Chiemchaisri, C., K. Yamamoto, and S. Vigneswaran. "Household Membrane Bioreactor in Domestic Wastewater Treatment." Water Science and Technology 27, no. 1 (January 1, 1993): 171–78. http://dx.doi.org/10.2166/wst.1993.0041.

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The activated sludge process coupled with hollow fiber membrane for solid-liquid separation was applied to treat low strength domestic wastewater. Pilot-scale experimental unit used in this study consisted of 2 modules of 0.03 μm pore size with 9 m2 surface area each, immersed in the reactor which has a maximum working volume of 1.5 m3. Even when sewage was fed at varying rates following its diurnal flow variation to the bioreactor, good stability of the process was achieved which was shown by the consistency in treated water quality. The effluent turbidity and COD were well within the limits (less than 0.5 NTU and 3-5 mg/L). The transmembrane pressure drop was less than 20 cm Hg even after 2 months of operation. Application of jet aeration could be used to prolong the operational life of the membrane in the bioreactor. This system is an ideal one to be used as household wastewater treatment system.

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21

Lettinga, G., A. de Man, A. R. M. van der Last, W. Wiegant, K. van Knippenberg, J. Frijns, and J. C. L. van Buuren. "Anaerobic Treatment of Domestic Sewage and Wastewater." Water Science and Technology 27, no. 9 (May 1, 1993): 67–73. http://dx.doi.org/10.2166/wst.1993.0179.

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Recent UASB-pilot plant and full scale experiences show that anaerobic pre-treatment is feasible for sewage and domestic wastewaters in tropical regions. This offers developing countries the unique opportunity to become completely self-sufficient in this respect. UASB-systems can be applied at very small and at very big scale, i.e. for off-site and (house and community) on-site treatment. Results obtained in pilot plant and full scale installations demonstrate that these systems are quite effective in removing and stabilizing organic pollutants at liquid detention times as low as 4 hrs, i.e. a BOD reduction up to 75-95 % can be achieved, while an almost complete treatment can be accomplished by combining the method with a small aerobic lagoon. Instead of consuming high grade energy, these systems produce energy. Moreover the excess sludge production is very low, while also the dewatering characteristics of the sludge are excellent.

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22

Behling, E., A. Diaz, G. Colina, M. Herrera, E. Gutierrez, E. Chacin, N. Fernandez, and C. F. Forster. "Domestic wastewater treatment using a UASB reactor." Bioresource Technology 61, no. 3 (September 1997): 239–45. http://dx.doi.org/10.1016/s0960-8524(97)00148-x.

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23

Al- Hashimi, Mohammed Ali, and Rasha Azeez Joda. "Treatment of Domestic Wastewater Using Duckweed Plant." Journal of King Saud University - Engineering Sciences 22, no. 1 (January 2010): 11–18. http://dx.doi.org/10.1016/s1018-3639(18)30505-1.

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24

Li, Yaqiang, Feng Tang, Qingliang Zhao, and Kai Hu. "Domestic wastewater treatment with CEPT-wetlands process." International Journal of Environment and Pollution 45, no. 1/2/3 (2011): 186. http://dx.doi.org/10.1504/ijep.2011.039095.

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25

Mortula, Md Maruf, and Graham A. Gagnon. "Small domestic wastewater treatment using waste materials." International Journal of Environmental Technology and Management 17, no. 1 (2014): 30. http://dx.doi.org/10.1504/ijetm.2014.059467.

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26

YAMAMOTO, Yasuji, Hideo KATSUURA, Masahiro FUJII, and Yuka WAKABAYASHI. "Treatment of domestic wastewater using fibrous ball." Journal of Environmental Conservation Engineering 22, no. 9 (1993): 539–45. http://dx.doi.org/10.5956/jriet.22.539.

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27

Moondra, Nandini, Namrata D. Jariwala, and Robin A. Christian. "Sustainable treatment of domestic wastewater through microalgae." International Journal of Phytoremediation 22, no. 14 (June 30, 2020): 1480–86. http://dx.doi.org/10.1080/15226514.2020.1782829.

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28

Kedrova, Tatyana, Liliya Khisameeva, and Runar Abitov. "Domestic wastewater treatment facilities of small towns." IOP Conference Series: Materials Science and Engineering 890 (August 13, 2020): 012152. http://dx.doi.org/10.1088/1757-899x/890/1/012152.

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29

Manaia, Celia M., Ana Novo, Bruno Coelho, and Olga C. Nunes. "Ciprofloxacin Resistance in Domestic Wastewater Treatment Plants." Water, Air, and Soil Pollution 208, no. 1-4 (August 26, 2009): 335–43. http://dx.doi.org/10.1007/s11270-009-0171-0.

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30

Sudarsan, J. S., Reenu Lizbeth Roy, G. Baskar, V. T. Deeptha, and S. Nithiyanantham. "Domestic wastewater treatment performance using constructed wetland." Sustainable Water Resources Management 1, no. 2 (June 2015): 89–96. http://dx.doi.org/10.1007/s40899-015-0008-5.

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31

Kuzin, E. N. "TITANIUM-BASED COAGULANTS IN DOMESTIC WASTEWATER TREATMENT." Water and Ecology 25, no. 4 (2020): 16–23. http://dx.doi.org/10.23968/2305-3488.2020.25.4.16-23.

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Introduction. Post-treatment of wastewater that has passed the stage of deep purification from biogenic elements is a pressing issue that has not been fully solved yet. Traditional reagents based on aluminum salts used to remove phosphorus compounds have a few significant drawbacks and do not always make it possible to achieve the standards established for the discharge of treated water into fishery reservoirs. Titanium-based coagulants are promising and highly effective reagents that have shown high efficiency in treating wastewater of various origins. Complex titanium-based coagulants are binary coagulants obtained by introducing hydrolysis products of titanium compounds in an amount of up to 10 % wt into the composition of traditional aluminum-based coagulants. Methods. Trial coagulation was carried out using a VELP laboratory flocculator; spectrophotometry, turbidimetry, and atomic emission spectral analysis were used to assess the purification efficiency. Results. It has been found that the use of titanium compounds and complex titanium-based coagulants can improve the efficiency of purification, as well as reduce the residual content of phosphate ion to the MPC standards. We have determined the main regularities in the use of complex titanium-based reagents and established the effect of the dose and pH of the medium on the efficiency of phosphate ion removal. It has also been found that the residual concentration of phosphate ion in treated water using titanium-based coagulants is significantly lower than when using traditional reagents. Titanium-based coagulants operate in a wider pH range, while the requirements for the residual concentration of titanium ions in treated water are much softer than for that of aluminum. It has been proved that the use of complex titanium-based reagents makes it possible to significantly intensify the processes of sedimentation and filtration of sludge formed during coagulation water treatment. Conclusion. In the course of the study, we have confirmed the prospects of using titaniumbased coagulants in domestic wastewater treatment.

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32

Lettinga, G., and L. W. Hulshoff Pol. "UASB-Process Design for Various Types of Wastewaters." Water Science and Technology 24, no. 8 (October 1, 1991): 87–107. http://dx.doi.org/10.2166/wst.1991.0220.

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In this paper the design of UASB-reactors is discussed for different types of wastewater, viz. industrial soluble non-complex wastewaters, SS-rich complex wastewaters and domestic sewage. The paper not only deals with the UASB-reactor design, but also with other treatment steps, pre- as well as post-treatment, that are required for as complete as possible overall wastewater purification.

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33

MURADYaN, Yu V., and S. Yu TEPLYKh. "AFTER TREATMENT DOMESTIC SEWAGE WITH ERSHOVA LOADING." Urban construction and architecture 2, no. 2 (June 15, 2012): 59–62. http://dx.doi.org/10.17673/vestnik.2012.02.11.

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Widespread now technological scheme and construction technology of wastewater do not provide normative qualitative parameters that correspond to the requirements of the water fish-economical ponds.The limited financing of construction of new sewage is the main method of improving the reconstruction and/or intensification of existing sewage systems.Now for the intensification of the process of purification of biologically treated wastewater purification filter with the proposed design of the load which ershov fully satisfies modern requirements on quality of discharged waste water into a reservoir.

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34

Xin, Yu, Lin Liu, Lili Wei, Xu Huang, and Chaoxiang Liu. "Recycling of rural abandoned constructed wetlands: mariculture wastewater treatment." Journal of Water Reuse and Desalination 11, no. 2 (February 2, 2021): 279–88. http://dx.doi.org/10.2166/wrd.2021.107.

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Abstract This study aimed to investigate the behavioral shifts of constructed wetland (CW) when the treated water was changed from domestic wastewater to mariculture wastewater. The results showed that the average removal efficiencies of ammonium nitrogen (), total nitrogen and chemical oxygen demand (COD) were 29.54, 46.07 and 57.15% in mariculture wastewater, respectively, which were significantly lower than those in domestic wastewater (71.35, 66.34 and 74.98%, respectively). While there was no significant difference in the removal efficiency of nitrate and phosphate (P > 0.05) between the two systems. Based on the analysis of bacterial community and adsorption properties, the results further indicated that the removal mechanism of between both systems was mainly due to substrate adsorption: the maximum adsorption capacity of on the substrate in mariculture wastewater was 5,432 mg kg−1, whereas that in domestic wastewater was 18,033 mg kg−1. In terms of bacterial communities, the dominant bacteria at the family level were Victivallaceae (18.63%) in domestic wastewater and Porphyromonadaceae (18.37%) in mariculture wastewater, which showed the significant alteration to the bacterial community. In conclusion, this study showed that conventional CW could be used for treating wastewater from land-based marine aquaculture, while the operating conditions needed to be optimized in the process of application.

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35

SHIDARA, Sousuke, and Koji KOMURASAKI. "Special issue : domestic wastewater treatment symposium.Denifrification bacteria groups in small-scale wastewater treatment system." Journal of Environmental Conservation Engineering 21, no. 10 (1992): 627–29. http://dx.doi.org/10.5956/jriet.21.627.

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36

MORITA, Yuzo, Kunie MATSUI, Seizo SAKIMURA, and Hiromi FUKUI. "Special issue : domestic wastewater treatment symposium.Domestic wastewater treatment using "Aburasu Ring and Bio Cord"." Journal of Environmental Conservation Engineering 21, no. 10 (1992): 645–48. http://dx.doi.org/10.5956/jriet.21.645.

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37

Juwarkar, A. S., B. Oke, A. Juwarkar, and S. M. Patnaik. "Domestic wastewater treatment through constructed wetland in India." Water Science and Technology 32, no. 3 (August 1, 1995): 291–94. http://dx.doi.org/10.2166/wst.1995.0151.

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The paper highlights the use of constructed wetlands for the removal of BOD, nitrogen, phosphorus and pathogens from primary treated wastewater. The constructed wetland consists of emergent macrophytesTypha latifolia and Phragmites carca grown in cement pipes having 0.1256 m2 area and 0.8 meter deep filled with 30% soil and 70% sand. The hydraulic loadings were maintained at the rate of 5 cm per day. The BOD removal in wetlands was observed to be 78-91%. The nitrogen content reduced from 30.8 mgl−1 to 9.5 mgl−1 whereas phosphate in treated wetland effluent was 9.6 mgl−1 as against the mean inflow total phosphate content of 14.9 mgl−1. The country’s first constructed wetland, of 90m × 30m size, was installed at Sainik School, Bhubaneshwar in the State of Orissa. Two types of macrophytes, viz. Typha latifolia and Phragmites carca, were planted. At present 180-200 m3 wastewater is being treated through wetland. BOD and nitrogen removal were 67-90% and 58-63% respectively. The constructed wetland treatment was found to be efficient in removal of BOD and N, and economically viable. The system, being easy to operate and low cost, can provide an economical viable solution for wastewater management.

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Anh, Tran Thuy, Tran Duc Minh Hai, Nguyen Danh Tien, and Tran Duc Ha. "STUDY ON ADVANCED TREATMENT OF WASTEWATER BY ULTRA FILTRATION FOR REUSING PURPOSE – ON-SITE PILOTS." Vietnam Journal of Science and Technology 58, no. 5A (November 12, 2020): 160. http://dx.doi.org/10.15625/2525-2518/58/5a/15283.

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Reclaimed water has been greatly applied worldwide recently to augment water supply for non-potable domestic purpose. The present study put an effect on assessing the application of ultra-filtration (UF) on advanced treatment following conventional domestic wastewater treatment and coal mining wastewater for reusing purpose. On-site advanced treatment pilots using UF membrane with the capacity of 1 – 1.5 m3/h were built to treat decentralized domestic wastewater which has a low concentration of organic matters and coal mining wastewater which is abated by chemical-physical process and advanced treatment train. Dissolved oxygen (DO), pH, Chemical oxygen demand (COD), biochemical oxygen demand (BOD), total suspended solids (TSS), volatile suspended solids (VSS), Total Nitrogen (TN) and ammonium-nitrogen (NH4-N) in domestic wastewater and TSS, iron (Fe), manganese (Mn), and hardness of coal mining wastewater were analyzed. The pollutants in domestic wastewater were reduced significantly as of 82% TSS, 86% BOD5, 82% COD, and 96% NH4-N. The removal efficiency in coal mining wastewater reached 93.5% TSS, 67% iron, 68% manganese, and 52% hardness. The analyzed parameters in permeate of both pilots met legislation thresholds of Vietnam technical regulation on domestic water quality, proving that reclaimed water treated by UF can be used for non-potable domestic purposes.

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Altinbaş, M., C. Yangin, and I. Ozturk. "Struvite precipitation from anaerobically treated municipal and landfill wastewaters." Water Science and Technology 46, no. 9 (November 1, 2002): 271–78. http://dx.doi.org/10.2166/wst.2002.0257.

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A two-stage treatment system including upflow anaerobic sludge blanket reactor pre-treatment combined with a chemical post treatment system such as magnesium ammonium phosphate (MAP) precipitation was proposed as a comparable alternative to conventional biological treatment. In this study, anaerobically pre-treated domestic wastewater, domestic wastewater mixed with 2% and 3% of leachate by volume and raw leachate were further treated chemically with MAP precipitation. MAP precipitation was both applied at the stoichiometric ratio (Mg:NH4 = PO4; 1:1:1) and above the stoichiometric ratio (1.1:1:1 and 1.1:1:1.1) on domestic wastewater +3% leachate mixture. Maximum NH4-N removal of 68% was achieved at the pH of 9.2 at the stoichiometric ratio, whereas at the same pH value 70 to 72% NH4-N removal was obtained above the stoichiometric ratio. Additional ammonia recovery studies were conducted on Fenton's oxidation applied effluents before MAP precipitation and no significant additional ammonium removal was achieved. However, by the application of Fenton's oxidation high additional COD removals were obtained. Consequently, chemical treatment by MAP precipitation and/or Fenton's oxidation after anaerobic treatment yielded very effective removals for COD and NH4-N in domestic wastewaters + leachate mixtures.

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Ouano, E. A. R. "Domestic Wastewater Treatment and Disposal in the Philippines." Water Science and Technology 18, no. 7-8 (July 1, 1986): 23–32. http://dx.doi.org/10.2166/wst.1986.0270.

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Sewage collection, treatment and disposal is often a secondary function to government agencies involved in housing, water supply, public health, solid waste management, flood control, etc. This results in proliferation of agencies with their own individual programs, policies and objectives. The paper reviews briefly the current programs and main functions of the major government agencies involved. The paper also summarizes some of the common problems encountered in practice, especially in transfer of technology to an area with a different social cultural background.

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Zhao, Xin, and Chao Yu Hu. "Community Domestic Wastewater Treatment by UCT-HMBR Process." Applied Mechanics and Materials 71-78 (July 2011): 4638–41. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.4638.

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In order to treat community domestic wastewater, the UCT (the University of Cape Town) process coupled with the Hybrid Membrane Bioreactor (HMBR) was selected to constitute a combination process UCT-HMBR. This hybrid reactor was characterized by high total biomass and low membrane fouling. After 42 days’ running, a significant biofilm was formed in the reactor. Data collected during 60-day stable running period showed that the average CODCr and ammonia removal efficiency are 95.7% and 97.7%, respectively. When the nitrate liquid recycle ratio is 300% the total phosphorus (TP) removal reaches the peak and TP removal efficiency is 83.2%. At the same time, the effluent total nitrogen is less than 15mg/L. The effluent of the UCT-HMBR can meet the national water reuse standard.

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El Alfy, Kasem, Kamal Radwan, Moharram Abdou, and Mohamed Al Nady. "DOMESTIC WASTEWATER TREATMENT USING A MODIFIED ELECTROCOAGULATION PROCESS." Bulletin of the Faculty of Engineering. Mansoura University 41, no. 2 (June 28, 2020): 8–16. http://dx.doi.org/10.21608/bfemu.2020.98831.

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43

Kondo, Masao, and Mitsuru Kondo. "Progressive Anaerobic and Aerobic Treatment of Domestic Wastewater." Proceedings of the Water Environment Federation 2000, no. 8 (January 1, 2000): 298–308. http://dx.doi.org/10.2175/193864700784546765.

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Hee-Jeong, Choi. "Treatment of Domestic Wastewater Using Mg-Sericite Flocculant." Journal of Korean Society of Water Science and Technology 23, no. 2 (April 30, 2015): 57–65. http://dx.doi.org/10.17640/kswst.2015.23.2.57.

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45

Canales, Angel, Alain Pareilleux, Jean Luc Rols, Ge´rard Goma, and Alain Huyard. "Decreased sludge production strategy for domestic wastewater treatment." Water Science and Technology 30, no. 8 (October 1, 1994): 97–106. http://dx.doi.org/10.2166/wst.1994.0390.

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With new EEC regulations, alternative treatment and disposal techniques of the excess sludge produced by Activated Sludge (AS) wastewater treatment plants have to be performed. In order to reduce the excess sludge produced, experiments have been carried out with a Membrane BioReactor (MBR) to study the maintenance and cryptic growth phenomena of Pseudomonas fluorescens culture taken as a model when grown on a limiting substrate complex medium similar to a synthetic urban wastewater. Experiments with various imposed wasting rates showed that viability and sludge production yield decreased when sludge age increased. Same variations were observed on the cell content ratio protein/polysaccharide by analysis of the cell lysis products released after discontinuous thermal treatment. Biomass growth on these cell lysis products was achieved to characterize cryptic growth and its impact on sludge production yield. Finally, a continuous sludge thermal treatment system was operating with MBR to amplify sludge breakage and consequently biomass growth on the lysis products. With the promising results obtained, this work gives a new outlook on the AS process and leads to the development of processes with control and reduction of sludge production.

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Smith, Adam L., Steven J. Skerlos, and Lutgarde Raskin. "Psychrophilic anaerobic membrane bioreactor treatment of domestic wastewater." Water Research 47, no. 4 (March 2013): 1655–65. http://dx.doi.org/10.1016/j.watres.2012.12.028.

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47

Molodkina, L. M., D. D. Kolosova, E. I. Leonova, M. F. Kudoyarov, M. Ya Patrova, and Yu V. Vedmetskii. "Track membranes in post-treatment of domestic wastewater." Petroleum Chemistry 52, no. 7 (November 30, 2012): 487–93. http://dx.doi.org/10.1134/s0965544112070092.

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Szilveszter, Szabolcs, Botond Raduly, Beata Abraham, Szabolcs Lanyi, and Dan Robescu Niculae. "MATHEMATICAL MODELS FOR DOMESTIC BIOLOGICAL WASTEWATER TREATMENT PROCESS." Environmental Engineering and Management Journal 9, no. 5 (2010): 629–36. http://dx.doi.org/10.30638/eemj.2010.086.

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Lew, B., S. Tarre, M. Beliavski, C. Dosoretz, and M. Green. "Anaerobic membrane bioreactor (AnMBR) for domestic wastewater treatment." Desalination 243, no. 1-3 (July 2009): 251–57. http://dx.doi.org/10.1016/j.desal.2008.04.027.

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Nasr, Fayza Aly, and Basem Mikhaeil. "Treatment of domestic wastewater using modified septic tank." Desalination and Water Treatment 56, no. 8 (September 30, 2014): 2073–81. http://dx.doi.org/10.1080/19443994.2014.961174.

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