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1

Gulyas, H., R. von Bismarck, and L. Hemmerling. "Treatment of industrial wastewaters with ozone/hydrogen peroxide." Water Science and Technology 32, no. 7 (1995): 127–34. http://dx.doi.org/10.2166/wst.1995.0217.

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Treatment with ozone and ozone/hydrogen peroxide was tested in a laboratory scale reactor for removal of organics from four different industrial wastewaters: wastewaters of a paper-mill and of a biotechnical pharmaceutical process as well as two process waters from soil remediation by supercritical water extraction. Moreover, an aqueous solution of triethyleneglycoldimethylether and humic acid which was a model for a biologically treated oil reclaiming wastewater was also oxidized. The aim of the oxidation of the pharmaceutical wastewater was the removal of the preservative 1.1.1-trichloro-2-m
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2

Toczyłowska-Mamińska, Renata, and Mariusz Ł. Mamiński. "Wastewater as a Renewable Energy Source—Utilisation of Microbial Fuel Cell Technology." Energies 15, no. 19 (2022): 6928. http://dx.doi.org/10.3390/en15196928.

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An underappreciated source of renewable energy is wastewater, both municipal and industrial, with global production exceeding 900 km3 a year. Wastewater is currently perceived as a waste that needs to be treated via energy-consuming processes. However, in the current environmental nexus, traditional wastewater treatment uses 1700–5100 TWh of energy on a global scale. The application of modern and innovative treatment techniques, such as microbial fuel cells (MFC), would allow the conversion of wastewater’s chemical energy into electricity without external energy input. It has been demonstrated
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3

Aasim, Muhammad Tayyab, Muhammad Shaheer Tariq, Muhammad Danish, Iqra Abbasi, Ali Raza, and Hammad Haider. "Durability Assessment of Recycled Aggregate Geopolymer Concrete Mixed with Wastewater." MATEC Web of Conferences 398 (2024): 01032. http://dx.doi.org/10.1051/matecconf/202439801032.

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The advancement of an environmentally friendly setting is complex due to the significant carbon footprint of cement, substantial construction and demolition waste, and large quantities of industrial waste wastewater. This study aims to increase building sustainability by analyzing the long-term durability of recycled aggregate geopolymer concrete (RGC) manufactured using four different wastewaters. To evaluate each wastewater’s effect on sulfuric acid resistance and chloride ion migration (CIM) at various curing times, RGC was used in place of fresh water in the tests. The results revealed tha
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4

Verburg, Ilse, H. Pieter J. van Veelen, Karola Waar, et al. "Effects of Clinical Wastewater on the Bacterial Community Structure from Sewage to the Environment." Microorganisms 9, no. 4 (2021): 718. http://dx.doi.org/10.3390/microorganisms9040718.

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This study pertains to measure differences in bacterial communities along the wastewater pathway, from sewage sources through the environment. Our main focus was on taxa which include pathogenic genera, and genera harboring antibiotic resistance (henceforth referred to as “target taxa”). Our objective was to measure the relative abundance of these taxa in clinical wastewaters compared to non-clinical wastewaters, and to investigate what changes can be detected along the wastewater pathway. The study entailed a monthly sampling campaign along a wastewater pathway, and taxa identification throug
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Utomo, Joseph Christian, Young Mo Kim, Hyun Uk Cho, and Jong Moon Park. "Evaluation of Scenedesmus rubescens for Lipid Production from Swine Wastewater Blended with Municipal Wastewater." Energies 13, no. 18 (2020): 4895. http://dx.doi.org/10.3390/en13184895.

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This study examined the feasibility of using non-sterilized swine wastewater for lipid production by an isolated microalga, Scenedesmus rubescens. Different dilution ratios using municipal wastewater as a diluent were tested to determine the suitable levels of microalgal growth in the wastewaters, its nutrient removal, and its lipid production. The highest lipid productivity (8.37 mg/L/d) and NH4+ removal (76.49%) were achieved in swine wastewater that had been diluted to 30 times using municipal wastewater. Various bacteria coexisted in the wastewaters during the cultivation of S. rubescens.
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6

КОРЧУГАНОВ, А. С. "ВЫПУСКИ СТОЧНЫХ ВОД В ВОДОЕМЫ". Вестник Научного центра ВостНИИ по промышленной и экологической безопасности, № 3-2017 (7 листопада 2017): 51–53. http://dx.doi.org/10.25558/vostnii.2017.3-2017.12455.

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ЗАГРЯЗНЕНИЕ ВОДНЫХ ОБЪЕКТОВ, СТОЧНЫЕ ВОДЫ, ВЫПУСКИ СТОЧНЫХ ВОД The problem of water body pollution by wastewaters is reviewed. The method of wastewater dilution by wastewater outlets is described. The classification of wastewater outlets is given.
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7

Cséfalvay, Edit, Péter Imre, and Péter Mizsey. "Applicability of nanofiltration and reverse osmosis for the treatment of wastewater of different origin." Open Chemistry 6, no. 2 (2008): 277–83. http://dx.doi.org/10.2478/s11532-008-0026-3.

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AbstractMembrane separations are finding greater use in wastewater treatment because of their efficiency. In order to prove the effectiveness of membrane filtration an applicability study is carried out. Nanofiltration and reverse osmosis membranes are tested under quite different conditions to reduce the chemical oxygen demands (COD) of wastewaters to meet the Council Directive 76/464/EEC release limit. Two kinds of real wastewaters were selected for the investigation. The wastewaters represent extreme different circumstances since the difference between their COD is two orders of magnitude.
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8

Shi, X. L., X. B. Hu, Z. Wang, L. L. Ding, and H. Q. Ren. "Effect of reflux ratio on COD and nitrogen removals from coke plant wastewaters." Water Science and Technology 61, no. 12 (2010): 3017–25. http://dx.doi.org/10.2166/wst.2010.266.

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A laboratory-scale anaerobic-anoxic-aerobic-moving bed biofilm reactor (A1-A2-O-MBBR) system was undertaken to treat coke plant wastewaters from two different factories (wastewater A and B). Wastewater B had higher BOD5/COD ratio and COD/TN ratio than wastewater A. The effects of reflux ratios on COD, TN and NH3-N removals were studied. Results indicated that, with the reflux ratio increased from 2 to 5, COD removals of wastewater A and wastewater B increased from 57.4% to 72.6% and 78.2% to 88.6%, respectively. Meanwhile, TN removals were also increased accompanying reflux ratio rise, from 53
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9

Alalam, Sabine, Farah Ben-Souilah, Marie-Hélène Lessard, et al. "Characterization of Chemical and Bacterial Compositions of Dairy Wastewaters." Dairy 2, no. 2 (2021): 179–90. http://dx.doi.org/10.3390/dairy2020016.

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The dairy industry produces large amounts of wastewater, including white and cleaning wastewater originating principally from rinsing and cleaning-in-place procedures. Their valorization into process water and non-fat milk solids, in the case of white wastewater, or the renewal of cleaning solutions could be achieved using pressure-driven membrane processes. However, it is crucial to determine the intrinsic characteristics of wastewaters, such as proximate composition and bacterial composition, to optimize their potential for valorization. Consequently, white and cleaning wastewaters were samp
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10

P., S. Subashini, and P. Rajiv Dr. "Invitro Assessment of the Growth and Biomass Level of Chlorella in Textile and Tannery Wastewater." International Journal of Trend in Scientific Research and Development 3, no. 2 (2019): 223–25. https://doi.org/10.31142/ijtsrd20291.

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Chlorella has the capacity to sustain in both fresh water and wastewater. The present study deals with a comparison of the growth and yield of Chlorella in fresh water and textile and tannery wastewaters. The wastewaters used in the study were collected from textile and tannery dyeing units. The wastewater was diluted with tap water in different dilutions 60 , 70 and 80 . Higher dilution yields better biomass parallel to tap water. The result of present study confirms that Chlorella can sustain in almost all wastewaters but gives the maximum yield in textile wastewater. P. S. Subashini | Dr. P
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11

Mahendraker, V., and T. Viraraghavan. "Respirometric Evaluation of Comparative Biodegradability of Municipal and Petroleum Refinery Wastewaters." Water Quality Research Journal 31, no. 2 (1996): 283–304. http://dx.doi.org/10.2166/wqrj.1996.017.

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Abstract This study was undertaken to evaluate and compare aerobic biodegradation of petroleum refinery (before API separator) and municipal wastewaters using an automatic laboratory respirometer. Seed activated sludge was acclimated with a small quantity of wastewater under study, in fill and draw type reactors. Relatively high initial substrate to seed biomass ratios of 20 and 15 were used to encourage growth conditions. Each wastewater sample was diluted to five concentrations, and oxygen uptake was recorded till the beginning of the endogenous phase. Oxygen uptake data were analyzed using
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12

Matsui, S., Y. Okawa, and R. Ota. "Experience of 16 Years' Operation and Maintenance of the Fukashiba Industrial Wastewater Treatment Plant of the Kashima Petrochemical Complex – II. Biodegradability of 37 Organic Substances and 28 Process Wastewaters." Water Science and Technology 20, no. 10 (1988): 201–10. http://dx.doi.org/10.2166/wst.1988.0138.

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Twenty-eight process wastewaters and thirty-seven organic substances identified in the wastewater of the Kashima petrochemical complex were subjected to biodegradability tests. The tests consisted of the activated sludge degradability method and a supplementary test using the respiration meter method. Both tests utilized the activated sludge of the Fukashiba industrial wastewater treatment plant, which was acclimatized to the wastewater and organic substances. The 28 process wastewaters were classified into biodegradable, less biodegradable, and non-biodegradable according to the percentage TO
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13

Zoric, Jelena, V. Simic, and Ana Petrovic. "On the possibility of using biological toxicity tests to monitor the work of wastewater treatment plants." Archives of Biological Sciences 60, no. 3 (2008): 431–36. http://dx.doi.org/10.2298/abs0803431z.

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The aim of this study was to ascertain the possibility of using biological toxicity tests to monitor influent and effluent wastewaters of wastewater treatment plants. The information obtained through these tests is used to prevent toxic pollutants from entering wastewater treatment plants and discharge of toxic pollutants into the recipient. Samples of wastewaters from the wastewater treatment plants of Kragujevac and Gornji Milanovac, as well as from the Lepenica and Despotovica Rivers immediately before and after the influx of wastewaters from the plants, were collected between October 2004
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14

Chupin, V. R. "Application of truck transport in district wastewater discharge systems." Journal «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 12, no. 2 (2022): 232–39. http://dx.doi.org/10.21285/2227-2917-2022-2-232-239.

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The possibility of applying wastewater truck transport in existing, developing and reconstructed wastewater discharge systems is considered. Truck transport in the form of wastewater vacuum trucks has been used for decades to collect and remove wastewaters from cesspools and septic tanks of pri-vate housing and individual enterprises. In this regard, the volumes and distances of economically profitable application of truck transport should be determined, along with the conditions for switching to pipeline wastewater transport in the form of pressure and non-pressure pipelines. Such questions o
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15

Olalemi, A., B. Oladejo, and M. Bayode. "Correlation between faecal indicator bacteria in diarrheagenic stools and hospital wastewaters: Implication on public health." African Journal of Clinical and Experimental Microbiology 22, no. 2 (2021): 234–43. http://dx.doi.org/10.4314/ajcem.v22i2.16.

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Background: Hospital wastewaters contain blends of inorganic, natural constituents and contaminants that carry significant health risk when released directly into the environment. The aim of this study is to investigate the correlation between faecal indicator bacteria in diarrheagenic stools and wastewaters generated in University of Medical Sciences Teaching Hospital complex, Akure, Nigeria.Methodology: Quantification of faecal indicator bacteria was carried out on diarrheagenic faecal samples collected from 55 hospitalized patients and 68 wastewater samples from the medical laboratory scien
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16

Bruchet, A., C. Prolongeau, M. Esperanza, and M. Coquery. "Where do the odorous halogenated phenols in drinking water resources come from?" Water Supply 8, no. 3 (2008): 263–69. http://dx.doi.org/10.2166/ws.2008.070.

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An SPME-GC/MS method was optimised for the analysis of halogenated phenols in raw and treated wastewaters. Method detection limits range from 50 to 200 ng/L in treated wastewaters. The method was applied at six wastewater plants sampled on three consecutive days. Seven halophenols were found in the wastewater effluents at concentrations up to 340 ng/L. It is concluded that wastewater emissions contribute to the presence of halophenols in water resources and, depending on the dilution ratio, may represent an organoleptic threat during the subsequent production of drinking water.
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17

Nwigwe, V. N., and B. O. Uba. "Role of Electrochemically Active Bacteria in the Treatment of Piggery and Poultry Wastewaters from Umuagwo in Ohaji Egbema Local Government Area of Imo State, Nigeria." Journal of Applied Sciences and Environmental Management 26, no. 12 (2022): 2085–93. http://dx.doi.org/10.4314/jasem.v26i12.24.

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In this study, piggery and poultry wastewaters were used as agro-based industrial wastewaters to evaluate the role of electrochemically active bacteria in an anodic chamber of microbial fuel cell (MFC) with 0.1M potassium permanganate cathodic cell using salt bridge preparation. The BOD5, COD, TDS, TSS, nitrogen, phosphates, pH and conductivity served as indicative parameters for determining the wastewater treatment efficiencies (WWTE) of the MFCs. Results obtained from the WWTE reveal that the MFCs were able to reduce the piggery wastewater parameters, BOD, COD, TDS, TSS, nitrogen, phosphate,
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18

Sushila, Sushila, and Parveen Kumar. "Pollution Load Reduction from Domestic Wastewater with Electrocoagulation Process for Agricultural Reuse." Indian Journal Of Science And Technology 17, no. 14 (2024): 1409–18. http://dx.doi.org/10.17485/ijst/v17i14.168.

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Objectives: The present study is aimed to investigate electrocoagulation of domestic wastewater and assessment of pollutants removal efficiency for potential reuse in agriculture. Methods: The electrocoagulation treatment of domestic wastewater with Fe – Fe electrodes was performed under optimal conditions of pH (8.0), current density (0.6 mA/cm2), treatment time (45 minutes), and NaCl dose (2.8 g/L) in a slurry type of reactor. The primary clarified and biotreated domestic wastewaters were subjected to electrocoagulation with Direct Current (DC) as power source. Findings: There was observed h
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19

Kishimoto, Naoyuki, Takuya Kitamura, and Yu Nakamura. "Applicability of an electrochemical Fenton-type process to actual wastewater treatment." Water Science and Technology 72, no. 6 (2015): 850–57. http://dx.doi.org/10.2166/wst.2015.279.

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The applicability of an electrochemical Fenton-type process (EF-HOCl-ReFe) to the treatment of three actual wastewaters, namely wastewater from an automobile factory (automobile wastewater), metal scrap-cleansing wastewater, and municipal wastewater, is discussed in this research. The EF-HOCl-ReFe successfully removed the chemical oxygen demand (COD) from automobile wastewater pre-treated by a coagulation process without any inhibition. The apparent current efficiency reached 86%, 46% of which was ascribed to the electrochemical Fenton-type mechanism. The metal scrap-cleansing wastewater had a
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20

Gao, Ai Hua, Shui Jiao Yang, Shang Bin Hu, Xiao Qing He, and Zhi Guo Lu. "Discharge Plasma for the Treatment of Industrial Wastewater." Applied Mechanics and Materials 71-78 (July 2011): 3075–78. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3075.

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The treatment of industrial wastewaters collected from petrochemical works, gypsum plant, and printing and dyeing mill, was investigated at atmospheric pressure in air discharge plasma. The degradation effects of organic contaminants in water were compared for the printing and dyeing wastewater under different discharging conditions and for the wastewater from the other two plants under the same discharging conditions. The influences of several factors on chemical oxygen demand (COD) remove rate were studied experimentally. The results showed that the treatment effects for the same industrial
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Jokela, P., E. Ihalainen, J. Heinänen, and M. Viitasaari. "Dissolved air flotation treatment of concentrated fish farming wastewaters." Water Science and Technology 43, no. 8 (2001): 115–21. http://dx.doi.org/10.2166/wst.2001.0478.

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Fish farming wastewaters contain nutrients, phosphorus and nitrogen, which promote eutrophication in the typically shallow farming sites in Finland. Fish farming wastewater treatment is problematic because of large quantities of very dilute wastewater (200 – 600 m3/kg fish produced). In practice wastewater treatment is concentrated on suspended solids removal. Treatment can be done in two steps: concentration of the very dilute wastewater and subsequent treatment of the concentrated wastewater. Dissolved air flotation pilot trials were conducted using two types of concentrated wastewaters: set
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Kamaz, Mohanad, S. Ranil Wickramasinghe, Satchithanandam Eswaranandam, et al. "Investigation into Micropollutant Removal from Wastewaters by a Membrane Bioreactor." International Journal of Environmental Research and Public Health 16, no. 8 (2019): 1363. http://dx.doi.org/10.3390/ijerph16081363.

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Direct potable reuse of wastewater is attractive as the demand for potable water increases. However, the presence of organic micropollutants in industrial and domestic wastewater is a major health and environmental concern. Conventional wastewater treatment processes are not designed to remove these compounds. Further many of these emerging pollutants are not regulated. Membrane bioreactor based biological wastewater treatment has recently become a preferred method for treating municipal and other industrial wastewaters. Here the removal of five selected micropollutants representing different
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Böhm, B. "A test method to determine inhibition of nitrification by industrial wastewaters." Water Science and Technology 30, no. 6 (1994): 169–72. http://dx.doi.org/10.2166/wst.1994.0265.

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A biotest to investigate wastewaters for the presence of nitrification-inhibiting substances has been developed. The principal feature of the test system is a packed-bed fixed-film biological reactor operated as a differential reactor. The test has been used to determine the effects on nitrification of wastewaters especially from textile and leather industries. Inhibition could be found even when the wastewater was diluted considerably. Tannery sewage may cause particularly severe problems in biological wastewater treatment, as the degree of inhibition of this wastewater has been observed to b
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Lettinga, G., and L. W. Hulshoff Pol. "UASB-Process Design for Various Types of Wastewaters." Water Science and Technology 24, no. 8 (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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Vítězová, Monika, Anna Kohoutová, Tomáš Vítěz, Nikola Hanišáková, and Ivan Kushkevych. "Methanogenic Microorganisms in Industrial Wastewater Anaerobic Treatment." Processes 8, no. 12 (2020): 1546. http://dx.doi.org/10.3390/pr8121546.

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Over the past decades, anaerobic biotechnology is commonly used for treating high-strength wastewaters from different industries. This biotechnology depends on interactions and co-operation between microorganisms in the anaerobic environment where many pollutants’ transformation to energy-rich biogas occurs. Properties of wastewater vary across industries and significantly affect microbiome composition in the anaerobic reactor. Methanogenic archaea play a crucial role during anaerobic wastewater treatment. The most abundant acetoclastic methanogens in the anaerobic reactors for industrial wast
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Pham, Van Doanh, Binh Minh Nguyen, and Thi Viet Nga Tran. "Application of aerobic granulation in SBR technology to treat low-strength urban wastewater." Ministry of Science and Technology, Vietnam 63, no. 11 (2021): 44–47. http://dx.doi.org/10.31276/vjst.63(11).44-47.

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Sequencing Batch Reactor - SBR is an advanced technology to treat wastewater in Vietnam and around the world. Many studies showed that aerobic granular sludge could adapt to various types of wastewater with different organic loads such as industrial wastewater, winery and brewery wastewaters, landfill wastewater, municipal wastewaters. This paper presents the removal results of COD, NH4+-N, T-N, T-P by applying aerobic granulation in SBR technology to treat low-strength urban wastewater at Hanoi in the laboratory. Research wastewater is taken from Kim Lien wastewater treatment plant with OLR 0
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27

El Bakraoui, Houria, Miloudia Slaoui, Jamal Mabrouki, Driss Hmouni, and Céline Laroche. "Recent Trends on Domestic, Agricultural and Industrial Wastewaters Treatment Using Microalgae Biorefinery System." Applied Sciences 13, no. 1 (2022): 68. http://dx.doi.org/10.3390/app13010068.

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In addition to producing bioenergy and molecules with high added value, microalgae have been recognized as an efficient microorganism for wastewater treatment. However, a major obstacle preventing its widespread use is the high energy cost of pretreatment, cultivation and downstream processes. Different types of wastewaters have been tested as culture mediums for microalgal biorefinery system. This review gives a summary of the most used microalgae strains for wastewater treatment, as well as information on the physical and chemical characteristics of domestic, agricultural, and industrial was
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Włodarczyk, Barbara Janina, and Paweł Piotr Włodarczyk. "Feeding a Membrane-less Microbial Fuel Cell by Mixed Municipal and Industrial Wastewater." Civil and Environmental Engineering Reports 33, no. 4 (2024): 50–62. http://dx.doi.org/10.59440/ceer/178189.

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Due to the constant growth of the world's population, the amount of generated wastewater is also constantly increasing. One of the devices that can use wastewater as a raw material for energy production is a microbial fuel cell (MFC). MFCs technology is constantly evolving. However, to increase its use, it is necessary to improve its efficiency. There are various possibilities to ensure this, such as the use of new electrode materials, new cell designs, or the use of wastewaters from different sources. In this paper the analysis of MFC operation (cell voltage, power, and current density) fed b
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Rodríguez, L., J. Villaseñor, and F. J. Fernández. "Use of agro-food wastewaters for the optimisation of the denitrification process." Water Science and Technology 55, no. 10 (2007): 63–70. http://dx.doi.org/10.2166/wst.2007.307.

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The aim of this work was to study the feasibility of the denitrification process enhancement, in the Ciudad Real (Spain) WWTP, by dosing agro-food wastewaters generated nearby the city. The studied agro-food wastewaters were characterised by a high COD and low nutrients concentration. The denitrification rates with these wastewaters were lower than those obtained either with acetate or urban sewage, however the dose of agro-food wastewaters raised significantly the denitrification capacity in the WWTP because of the significant increase of easily biodegradable substrates in the wastewater. Fro
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Khajah, Mishari, Mohd Elmuntasir Ahmed, and Abdullah Al-Matouq. "Characterization of Reverse Osmosis Reject Wastewater Generated from Sulaibiya Wastewater Treatment Plant." International Journal of Environmental Science and Development 14, no. 1 (2023): 69–73. http://dx.doi.org/10.18178/ijesd.2023.14.1.1417.

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Sulaibiya Wastewater Treatment Plant (Kuwait) is considered as one of the largest wastewater treatment plants that use Reverse Osmosis (RO) membranes in their processes to reclaim water from municipal wastewaters for indirect potable water reuse. This result in considerable wastewater treatment brine which needs to be further investigated before discharge. Samples were collected on daily basis from the RO reject wastewater (brine wastewater) for one month and analyzed in situ and in the laboratory. The results obtained showed that the brine wastewater met the requirements of the Kuwait Environ
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Kyllönen, Hanna, Juha Heikkinen, Eliisa Järvelä, Lotta Sorsamäki, Virpi Siipola, and Antti Grönroos. "Wastewater Purification with Nutrient and Carbon Recovery in a Mobile Resource Container." Membranes 11, no. 12 (2021): 975. http://dx.doi.org/10.3390/membranes11120975.

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Water reuse from wastewater treatment plants can significantly reduce freshwater demand. Additionally municipal sewage and some industrial wastewaters could be used as sources of nutrients and carbon more effectively than they are used today. Biological treatments have attracted the most attention in wastewater purification, whereas, so far, only a little attention has been paid to the physico-chemical technologies. These technologies could, however, have great potential to recover nutrients when purifying wastewater. In this study, the main emphasis was to study the possibilities to utilize e
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Väänänen, Pentti, Pekka Pouttu, and Timo Kulmala. "Joint Treatment of Industrial and Municipal Wastewater – Case Project: City of Kotka, Finland." Water Science and Technology 25, no. 1 (1992): 83–92. http://dx.doi.org/10.2166/wst.1992.0013.

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The National Board of Waters in Finland has proposed a study on the joint treatment of industrial and municipal wastewaters of the City of Kotka. This study is of great interest due to the large forest products industry and food industry in Kotka. All of the wastewaters from the forest products and the food industry and the municipal sewage have been found to be suitable for biological treatment, which makes the joint treatment applicable. An activated sludge process is selected because it takes advantage of the large amount of nutrients in the municipal sewage and it has proved to be the most
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33

Sushila and Kumar Parveen. "Pollution Load Reduction from Domestic Wastewater with Electrocoagulation Process for Agricultural Reuse." Indian Journal of Science and Technology 17, no. 14 (2024): 1409–18. https://doi.org/10.17485/IJST/v17i14.168.

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Abstract <strong>Objectives:</strong>&nbsp;The present study is aimed to investigate electrocoagulation of domestic wastewater and assessment of pollutants removal efficiency for potential reuse in agriculture.&nbsp;<strong>Methods:</strong>&nbsp;The electrocoagulation treatment of domestic wastewater with Fe &ndash; Fe electrodes was performed under optimal conditions of pH (8.0), current density (0.6 mA/cm2), treatment time (45 minutes), and NaCl dose (2.8 g/L) in a slurry type of reactor. The primary clarified and biotreated domestic wastewaters were subjected to electrocoagulation with Dir
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Aziz, Shuokr, and Sardar Bruska. "Applying mass balance dilution technique for wastewater disposal to Greater-Zab river in Erbil, Kurdistan region-Iraq." Reciklaza i odrzivi razvoj 14, no. 1 (2021): 31–39. http://dx.doi.org/10.5937/ror2101031a.

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Treatment is essential for wastewaters prior to its disposal to the environment or water sources. Numerous wastewater treatment techniques are applied for the treatment of wastewater types. To date, dilution via mass balance approach has not been reported for treatment of various types of wastewaters in Erbil City, Kurdistan Region-Iraq. Consequently, the aim of this work was to examine the treatment of various types of wastewaters using dilution method by river water through applying mass balance approach. Characteristics of different types of wastewaters and Greater-Zab River water in Erbil
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Tran, Lan Thu, Anh Tien Do, Tuan Hung Pham, Kim Thanh Nguyen, and Hung Cong Duong. "Decentralised, small-scale coagulation-membrane treatment of wastewater from metal recycling villages – a case study from Vietnam." Water Science and Technology 82, no. 10 (2020): 2125–33. http://dx.doi.org/10.2166/wst.2020.493.

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Abstract Effective treatment of wastewaters laden with heavy metals is critical to the sustainable social and economic growth of metal recycling villages in Vietnam. Currently, most wastewaters from metal recycling villages in Vietnam are directly discharged, posing great threats to the environment and human health. In this study, a small-scale combined coagulation-membrane filtration treatment of wastewater collected from a metal recycling village in Vietnam was experimentally investigated. The experimental results manifested the technical viability of the combined coagulation-membrane filtra
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Ahmed, Mohd Elmuntasir, Adel Al-Haddad, and Suad Al-Dufaileej. "Characterization and Profiling of Industrial Wastewater Toxicity in Kuwait." International Journal of Environmental Science and Development 13, no. 2 (2022): 35–41. http://dx.doi.org/10.18178/ijesd.2022.13.2.1369.

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Toxicity reduction is a main criterion in prioritizing industrial wastewater treatment objectives. This paper utilized a comprehensive survey of 41 industrial facilities to characterize their wastewater quality parameters and to assess their wastewater toxicity. The 41 factories were grouped under eleven industrial categories. Microtox relative toxicity test results indicated that industrial wastewater in Kuwait are mostly very toxic to toxic with the exception of farms wastewater which was found to be slightly toxic. The highest ranking toxic wastewaters where found to be metal forming, print
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Selvabharathi, G., S. Adishkumar, S. Jenefa, G. Ginni, J. Rajesh Banu, and Ick Tae Yeom. "Combined homogeneous and heterogeneous advanced oxidation process for the treatment of tannery wastewaters." Journal of Water Reuse and Desalination 6, no. 1 (2015): 59–71. http://dx.doi.org/10.2166/wrd.2015.139.

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This study investigated the practical application of combined advanced oxidation processes (AOPs), such as homogeneous TiO2 photocatalysis and heterogeneous photo-Fenton, for the treatment of tannery wastewaters. An optimization study was conducted on the photocatalytic degradation of tannery wastewaters, in order to understand the effects of different operating parameters on the degradation kinetics. The chemical oxygen demand of tannery wastewater decreased from an initial level of 3,400 mg/L in raw wastewater to 140 mg/L (96% removal) in wastewater treated by the combined advanced oxidation
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38

Gulyas, H. "Processes for the removal of recalcitrant organics from industrial wastewaters." Water Science and Technology 36, no. 2-3 (1997): 9–16. http://dx.doi.org/10.2166/wst.1997.0471.

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Processes that are suitable for the elimination of recalcitrant organics from industrial wastewaters are reviewed. Most advantageous are separation processes which enable not only reuse of the water phase but also the recycling of the wastewater constituents. Besides separation processes many degradative wastewater techniques are available. However, for the removal of recalcitrant organics biological processes (which are economically beneficial) cannot be chosen, but a variety of nonbiological degradative processes exist which can be divided into oxidative and reductive technologies. The latte
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39

Krishnamurthy, Bhavya Devanooru, Likitha Mukkundur Puttaraju, Pallavi Veeregowda, Ruchitha Prasad Guruprasad, and Lakshmi Shyarahalli Balakrishna. "Electrocoagulation in Wastewater Treatment: A Comprehensive Review of Heavy Metal and Pollutant Removal." Asian Journal of Chemical Sciences 14, no. 6 (2024): 114–36. http://dx.doi.org/10.9734/ajocs/2024/v14i6339.

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Population explosion, urbanization, and industrialization have resulted in the generation of many types of wastewaters. One of the most crucial aspects of water treatment is the elimination of pollutants/contaminants from wastewaters, as numerous industries cause environmental pollution. The rising scarcity of freshwater quality and quantity is a global concern. Discharging untreated wastewater into water bodies causes bad odour, nuisance and adverse impacts on human health, ecosystem and the world economy. Electrocoagulation (EC) is gaining ground as a potential electrochemical technique to t
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Paśmionka, Iwona B., Piotr Herbut, Grzegorz Kaczor, et al. "Influence of COD in Toxic Industrial Wastewater from a Chemical Concern on Nitrification Efficiency." International Journal of Environmental Research and Public Health 19, no. 21 (2022): 14124. http://dx.doi.org/10.3390/ijerph192114124.

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COD is an arbitrary indicator of the content of organic and inorganic compounds in wastewater. The aim of this research was to determine the effect of COD of industrial wastewater on the nitrification process. This research covered wastewater from acrylonitrile and styrene–butadiene rubbers, emulsifiers, polyvinyl acetate, styrene, solvents (butyl acetate, ethyl acetate) and owipian® (self-extinguishing polystyrene intended for expansion) production. The volume of the analyzed wastewater reflected the active sludge load in the real biological treatment system. This research was carried out by
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41

Canpolat, Özgür, and Ece Vanlı. "Erkenez Çayı’nda (Kahramanmaraş) Süt Ürünleri, Boya ve Tekstil Fabrikası Atık Sularından Kaynaklanan Ağır Metal Kirliliğinin Belirlenmesi." Turkish Journal of Agriculture - Food Science and Technology 7, no. 11 (2019): 1858. http://dx.doi.org/10.24925/turjaf.v7i11.1858-1866.2758.

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Industries, as a source of pollution, have a considerable impact on aquatic ecosystems due to the diversity in the composition of their wastewater. In this study, it is aimed to determine the heavy metal pollution caused by the wastewater of milk products factory, paint factory and textile factory in the Organized Industrial Zone of Kahramanmaraş province. For this purpose, seasonal concentrations of some heavy metals (Fe, Cu, Zn, Cr, Ni, Cd, As and Hg) have been determined in wastewaters of milk products factory, paint factory and textile factory and in the region where these wastewaters disc
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Shahraki, Abdol Aziz. "Managing urban wastewater to fight the pandemic of COVID-19 effectively." Health and Environment 3, no. 1 (2021): 141–51. http://dx.doi.org/10.25082/he.2022.01.001.

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The paper reveals the role of wastewaters in the spread of Coronavirus in cities and focuses on the need for collection, treatment, and management of wastewaters. While the focus of the fight against COVID-19 is on the production of vaccines, drugs and treatments, this article emphasizes the cleanliness of the environment with wastewater management. This paper is a novel work, since it presents a multi-side research concerning fighting against coronavirus through wastewater collection and treatment. Studies show that coronavirus exists in urban wastewaters and spread the COVID-19 everywhere. C
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Lehto, Marja, Ilkka Sipilä, Laura Alakukku, and Hanna-Riitta Kymäläinen. "Water consumption and wastewaters in fresh-cut vegetable production." Agricultural and Food Science 23, no. 4 (2014): 246–56. http://dx.doi.org/10.23986/afsci.41306.

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Controlled water use is an important component of sustainable fresh-cut vegetable production because of limited water resources, and also for controlling the quality of wastewater re-used in vegetable processing or for irrigating on fields. In our study the water consumption in vegetable processing plants varied from 1.5 to 5.0 m3 t-1 of finished product. In one plant, monitored over three years, almost 90% of water was used for washing and rinsing of vegetables, but more than 90% of the organic load of the wastewater was generated from the processing stage. The results including organic load
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Al-Jabri, Hareb, Probir Das, Shoyeb Khan, Mahmoud Thaher, and Mohammed AbdulQuadir. "Treatment of Wastewaters by Microalgae and the Potential Applications of the Produced Biomass—A Review." Water 13, no. 1 (2020): 27. http://dx.doi.org/10.3390/w13010027.

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The treatment of different types of wastewater by physicochemical or biological (non-microalgal) methods could often be either inefficient or energy-intensive. Microalgae are ubiquitous microscopic organisms, which thrive in water bodies that contain the necessary nutrients. Wastewaters are typically contaminated with nitrogen, phosphorus, and other trace elements, which microalgae require for their cell growth. In addition, most of the microalgae are photosynthetic in nature, and these organisms do not require an organic source for their proliferation, although some strains could utilize orga
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Nicolau, Julia Teodoro de Souza, João Henrique Alves Souza, Pedro Augusto Arroyo, Elias Trevisan, Ricardo Souza Vasconcellos, and Leonir Bueno Ribeiro. "Biomass productivity of Chlorella vulgaris cultivated in fish and dairy cattle wastewaters." Semina: Ciências Agrárias 42, no. 3 (2021): 1369–78. http://dx.doi.org/10.5433/1679-0359.2021v42n3p1369.

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The biomass productivity and nutrient composition of microalgae, such as Chlorella vulgaris, depend on the cultivation process and the nutrient content of growth media. Thus, in this study aimed to investigate the biomass productivity of C. vulgaris cultivated in fish and dairy cattle wastewaters. Thirty wastewater samples (2.5 L) were collected from system of production. Microalgae were cultivated in Erlenmeyer flasks containing 10 mL of microalgae and 1,790 mL of wastewater under constant light of 5,000 lux for 16 days at 25 ± 2.0 °C. Wastewater samples differed in composition. Biomass produ
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Prokkola, Hanna, Anne Heponiemi, Janne Pesonen, Toivo Kuokkanen, and Ulla Lassi. "Reliability of Biodegradation Measurements for Inhibitive Industrial Wastewaters." ChemEngineering 6, no. 1 (2022): 15. http://dx.doi.org/10.3390/chemengineering6010015.

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Industrial wastewaters may contain toxic or highly inhibitive compounds, which makes the measurement of biological oxygen demand (BOD) challenging. Due to the high concentration of organic compounds within them, industrial wastewater samples must be diluted to perform BOD measurements. This study focused on determining the reliability of wastewater BOD measurement using two different types of industrial wastewater, namely pharmaceutical wastewater containing a total organic carbon (TOC) value of 34,000 mg(C)/L and industrial paper manufacturing wastewater containing a corresponding TOC value o
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Yousuf, Sumra, Payam Shafigh, Zakaria Che Muda, Herda Yati Binti Katman, and Abid Latif. "Alternatives for Fresh Water in Cement-Based Materials: A Review." Water 15, no. 15 (2023): 2828. http://dx.doi.org/10.3390/w15152828.

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Huge amounts of fresh water are used in the concrete industry every day. The quantity and quality of water play important roles in determining the quality, strength, setting time, and durability of cement-based materials (CBMs), such as paste, mortar, and concrete. Freshwater systems are under pressure due to climate changes, industrialisation, population growth, urbanisation, and the lack of proper water resource management. The lack of potable water has resulted in the search for possible alternatives, such as seawater, treated industrial wastewater, treated sewage wastewater, carwash servic
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48

Al-Khirbash, Bassim, Saif Al-hakimi, and Hani Al-Aswadi. "Impact of wastewaters on groundwater quality of Bani Al-Hareth and Arhab areas in northern Sana’a city, Yemen." مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا 2, no. 1 (2024): 16–29. http://dx.doi.org/10.59628/jast.v2i1.578.

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The purpose of this research is to determine the impacts of wastewater effluents on groundwater quality of the northern su­­burbs of Sana’a city. Fourteen duplicate groundwater and wastewater samples were collected from the study area and analyzed. The groundwater samples were analyzed for major elements, and anionic and cationic groups using Atomic Absorption Spectrophotometer (AAS). The wastewater samples were analyzed for Total Coliform (TC), Fecal Coliform (FC), and oxygen demands. For characterizing the groundwater and wastewater qualities of the study area, analysis results were tabulate
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Rueda Márquez, Juan, Irina Levchuk, and Mika Sillanpää. "Application of Catalytic Wet Peroxide Oxidation for Industrial and Urban Wastewater Treatment: A Review." Catalysts 8, no. 12 (2018): 673. http://dx.doi.org/10.3390/catal8120673.

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Catalytic wet peroxide oxidation (CWPO) is emerging as an advanced oxidation process (AOP) of significant promise, which is mainly due to its efficiency for the decomposition of recalcitrant organic compounds in industrial and urban wastewaters and relatively low operating costs. In current study, we have systemised and critically discussed the feasibility of CWPO for industrial and urban wastewater treatment. More specifically, types of catalysts the effect of pH, temperature, and hydrogen peroxide concentrations on the efficiency of CWPO were taken into consideration. The operating and maint
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Czikkely, Marton, and Csaba Fogarassy. "Urban Wastewater Management in Focus of Heavy Metal Contamination." YBL Journal of Built Environment 6, no. 1 (2018): 103–13. http://dx.doi.org/10.2478/jbe-2018-0007.

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Abstract In our study, we focused on urban wastewater management, with special regard to the problems caused by heavy metal contaminations. Heavy metals function at low concentrations as a biogenic element, but at the same time in higher amounts (especially above the limit value) are considered as pollutants. We determined the basic wastewater treatment problem: which is the main problem of heavy metal contaminated urban wastewaters and how could eliminate heavy metals. We focused on wastewater origin heavy metal mobility in environment and effect (risk) on human health. In the following, we u
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