Academic literature on the topic 'Sewage effluent'

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Journal articles on the topic "Sewage effluent"

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Al-Gheethi, Adel A. S., Norli Ismail, A. N. Efaq, J. D. Bala, and Ramzy M. A. Al-Amery. "Solar disinfection and lime stabilization processes for reduction of pathogenic bacteria in sewage effluents and biosolids for agricultural purposes in Yemen." Journal of Water Reuse and Desalination 5, no. 3 (January 20, 2015): 419–29. http://dx.doi.org/10.2166/wrd.2015.074.

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Yemen is the least advanced country among Middle Eastern countries in sewage reuse and safety control. The current sewage effluent quality in Yemen is generally poor as none of the existing sewage treatment plants produces effluents that comply with the effluent quality regulations. There is no plan to build tertiary treatment systems. However, the oxidation and stabilization ponds are considered most appropriate for the warm climate conditions in the country. Sewage effluents and biosolids generated from these ponds are used extensively for agricultural purposes. This review discusses the potential use of solar disinfection (SODIS) and lime treatment for the reduction of pathogens in sewage effluents and biosolids before reuse. SODIS and lime treatment are natural processes, simple, easily implemented, produce non-toxic by-products and are low cost. The merits of these processes are enormous, and they are suitable for application in developing countries such as Yemen.
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Mitz, Stephen V., and John P. Giesy. "Sewage effluent biomonitoring." Ecotoxicology and Environmental Safety 10, no. 1 (August 1985): 22–39. http://dx.doi.org/10.1016/0147-6513(85)90004-1.

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Mitz, Stephen V., and John P. Giesy. "Sewage effluent biomonitoring." Ecotoxicology and Environmental Safety 10, no. 1 (August 1985): 40–52. http://dx.doi.org/10.1016/0147-6513(85)90005-3.

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Wayland, Mark, and Keith A. Hobson. "Stable carbon, nitrogen, and sulfur isotope ratios in riparian food webs on rivers receiving sewage and pulp-mill effluents." Canadian Journal of Zoology 79, no. 1 (January 1, 2001): 5–15. http://dx.doi.org/10.1139/z00-169.

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We examined spatial trends in ratios of stable isotopes of nitrogen (δ15N), carbon (δ13C), and sulfur (δ34S) in riparian food webs leading to a riparian, insectivorous bird species, the tree swallow (Tachycineta bicolor), on rivers receiving pulp-mill effluent and municipal sewage and compared them with ratios of these isotopes in components of the effluents themselves. The study was conducted on two rivers in western Canada at sites upstream and downstream from sewage and pulp mill effluent sources. Municipal sewage contained materials with δ15N or δ13C values that were distinct from background conditions in the receiving environment. Pulp-mill effluent contained materials with δ34S values that were distinct from those at upstream sites on the rivers. At both locations, effluent-derived nitrogen and sulfur were observed in algae and suspended sediments at sites downstream from the effluent sources. This was also observed in adult aquatic insects, the one exception being that uptake of effluent-derived nitrogen was detected isotopically at only one location. Tree swallows' use of sewage-derived nitrogen was evident only at one location, while use of pulp-mill-derived sulfur was evident only at the other location. Our study demonstrates the usefulness and limitations of measuring stable isotopes for tracing the movement of nutrients derived from sewage and pulp-mill effluent in freshwater ecosystems and, further, indicates that such tracing may be extended to riparian species feeding on aquatic prey.
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Hokajärvi, Anna-Maria, Tarja Pitkänen, Henri M. P. Siljanen, Ulla-Maija Nakari, Eila Torvinen, Anja Siitonen, and Ilkka T. Miettinen. "Occurrence of thermotolerant Campylobacter spp. and adenoviruses in Finnish bathing waters and purified sewage effluents." Journal of Water and Health 11, no. 1 (November 17, 2012): 120–34. http://dx.doi.org/10.2166/wh.2012.192.

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A total of 50 Finnish bathing water samples and 34 sewage effluent samples originating from 17 locations were studied in the summers of 2006 and 2007. Campylobacter were present in 58% and adenoviruses in 12% of all bathing water samples; 53% of all sewage effluent samples were positive for Campylobacter spp. and 59% for adenoviruses. C. jejuni was the most common Campylobacter species found and human adenovirus serotype 41 was the most common identified adenovirus type. Bathing water temperature displayed a significant negative relationship with the occurrence of Campylobacter. One location had identical pulsed-field gel electrophoresis patterns of C. coli isolates in the bathing water and in sewage effluent, suggesting that sewage effluent was the source of C. coli at this bathing site. The counts of faecal indicator bacteria were not able to predict the presence of Campylobacter spp. or adenoviruses in the bathing waters. Thus the observed common presence of these pathogens in Finnish sewage effluents and bathing waters may represent a public health risk. The low water temperature in Finland may enhance the prevalence of Campylobacter in bathing waters. More attention needs to be paid to minimizing the concentrations of intestinal pathogens in bathing waters.
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Hassanain, Mohey A., Nawal A. Hassanain, Esam A. Hobballa, Fatma H. Abd- El Zaher, and Mohamed Saber M. Saber. "Existence and Decontamination of HVC, Infectious Enteric Bacteria and Parasites in Sewaged Soils." JOURNAL OF ADVANCES IN AGRICULTURE 3, no. 1 (September 30, 2014): 150–58. http://dx.doi.org/10.24297/jaa.v3i1.5411.

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A surface sample representing a high contaminated loamy sand soil irrigated with sewage effluent since 30 years and was cultivated with artichoke was collected from Abu-Rawash sewage farm. The existence of HVC, enteric infectious bacteria and parasites in sewaged soil found to be negative for the forward and positive for the latter's. Out of the 30 samples separated from the sewaged soil sample, only 3 samples contained parasitic fauna of developed and undeveloped Ascaris (10%) and five samples contained Entamoeba coli. Results showed that the number of Ascaris eggs/gm soil was 0.017 and the number of E. coli/gm was 0.26. Decontamination of soil parasites was effective using either calcium hypochlorite or potassium permanganate. Salmonella, Vibrio and Campelobacter were detected in the high contaminated sewaged soil and survived for 120 days in the sewaged soil under all control and bioremediated treatments irrigated with either sewage effluent or water.
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Diamantis, V. I., I. Antoniou, E. Athanasoulia, P. Melidis, and A. Aivasidis. "Recovery of reusable water from sewage using aerated flat-sheet membranes." Water Science and Technology 62, no. 12 (December 1, 2010): 2769–75. http://dx.doi.org/10.2166/wst.2010.009.

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Continuous developments and advances in membrane technology allow recovering to large extent reusable water from untraditional water sources, such as municipal effluents. In this paper, operational results and preliminary cost-analysis of a microfiltration (MF) process used for raw sewage and secondary effluent polishing are given. The research was conducted with a 22 sandwich-type flat-sheet membrane module (0.45 μm and 4.5 m2) employing aeration for fouling control. During raw sewage filtration the majority of the organics were retained (effluent COD < 90 mg/L and SS ∼ 0 mg/L). However, the fluxes were significantly lower [∼7 L/(m2 h)] compared to those achieved during secondary effluent filtration [∼29 L/(m2 h)] (at TMP 0.14 bar). In the second case, aeration was found to be suitable mean for fouling control. The total costs (capital and operational) for water recovery from raw sewage and secondary effluent were estimated to be in the order of 2 and 0.75 €/m3 respectively.
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Baldry, M. G. C., and M. S. French. "Disinfection of Sewage Effluent with Peracetic Acid." Water Science and Technology 21, no. 3 (March 1, 1989): 203–6. http://dx.doi.org/10.2166/wst.1989.0100.

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Novel products based on peracetic acid (PAA) have recently been developed for the disinfection of sewage and sewage effluents. The efficacy of such products has been assessed under both laboratory and operational conditions. Comparative laboratory studies of the effects of peracetic acid, chlorine dioxide and chlorine on indicator bacteria in secondary sewage effluent have shown peracetic acid to be a viable alternative to these halogen biocides. In a trial carried out at two small rural works, PAA was dosed into secondary effluent from either an activated sludge plant or a percolating filter bed prior to tertiary lagoon treatment. LOW levels of PAA greatly enhanced the natural decline in coliform levels across the lagoon, enabling much lower concentrations of bacteria to be discharged into the receiving streams. In another trial, secondary effluent from an activated sludge plant was treated before discharge into a stream leading to the sea. Coliform concentrations were greatly reduced along the watercourse downstream from the plant.
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Graveland, D. N. "Reuse of sewage effluent." Canadian Journal of Civil Engineering 14, no. 4 (August 1, 1987): 589–90. http://dx.doi.org/10.1139/l87-086.

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Bouwer, Herman. "Issues in artificial recharge." Water Science and Technology 33, no. 10-11 (May 1, 1996): 381–90. http://dx.doi.org/10.2166/wst.1996.0696.

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Interest in artificial recharge with normal water and sewage effluent continues to increase. Issues discussed in this paper include recharge with infiltration basins, soil-aquifer treatment of sewage effluent, potable use of water from aquifers recharged with sewage effluent, nitrogen removal, pre-treatment of sewage effluent, disinfection, well recharge, clogging parameters, superchlorination, disinfection byproducts, vadose zone wells, seepage trenches, and constructed aquifers used as intermittent sand filters.
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Dissertations / Theses on the topic "Sewage effluent"

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Zapf-Gilje, Reidar. "Treatment and disposal of secondary sewage effluent through snowmaking." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/26034.

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When secondary sewage effluent is converted to snow, the nutrients and residual organics become concentrated in the early meltwater discharge through melt-freeze processes within the snow-pack. The early season melt comes off relatively slowly. Providing the soil can absorb the early melt, the bulk of the nutrients will be removed even if later season melt rates exceeds the soil's infil-trability. This could provide an inexpensive method for nutrient removal from secondary sewage effluents. Laboratory experiments showed that the degree of impurity concentration was largely independent of the number of diurnal melt-freeze cycles, snow depth, snow temperature and initial concentration of impurity in the snow. As a result, the removal of impurities from a snowpack can be expressed in terms of the cumulative melt discharge. A simple exponential decay process was found to describe the impurity removal well for most cases. The first 20% of the melt removed, on the average, 65% of the phosphorus and 86% of the nitrogen from snow made from sewage effluent; and 92% of the potassium chloride from snow made from potassium chloride solution. Stripping of ammonia during snow production and melting increased the overall nitrogen removal to about 90%. A field investigation of salt movement through a natural snowpack confirmed the laboratory results.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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Russo, Stephen Leonard. "Anaerobic treatment of a paper plant effluent." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/21988.

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The objective of this study was to investigate the anaerobic biological treatment of an organic-bearing wastewater from a particular paper manufacturing process at laboratory scale. The process produces paper by re-pulping waste paper. Effluent from the process has a Chemical Oxygen Demand (COD) concentration of approximately 4500 mg/l with a sulphate content of approximately 300 mg SO₄²⁻/l. The upflow anaerobic sludge bed (UASB) reactor was selected for the study. Important information derived from the laboratory treatability study was: (l) the extent of COD removal possible; (2) the effluent quality; (3) the maximum COD leading rate (kgCOD/m³ reactor/day) which can be achieved while maintaining reasonable COD removal, and the influence on loading rate of temperature: (4) the nature of the sludge produced in the reactor with particular reference to the extent of pelletisation: and (5) the effect of reactor effluent recycling on alkalinity requirements.
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Rui, Li. "The use of treated effluent for agricultural irrigation in the Bottelary River area: Effluent quality, farmers perception and potential extent." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=init_1918_1177917293.

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The Bottelary River area is located in a Mediterranean climate region, where the agricultural sector plays an important role. During the dry summer season, there is not enough precipitation to meet the agricultural irrigation requirements. Some farmers extract river water which is practically the final treated effluent from the Scottsdene Wastewater Treatment Works to irrigate crops. This research investigated the use of treated effluent for agricultural irrigation in this area, particularly focused on the effluent quality, farmers perception, and the potential extent.
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Evans, Derek W. "The effect of trematode parasite larvae on the invertebrate fauna of Whitehouse Lagoon." Thesis, University of Ulster, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339315.

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De, Bel Maud. "Techniques for the evaluation of wastewater treatment processes." Thesis, Cranfield University, 2001. http://dspace.lib.cranfield.ac.uk/handle/1826/10437.

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This study focussed on extending and applying techniques to measure hydrodynamic characteristics in treatment units at sewage works. Use was made of tracer dye studies and a spreadsheet based analysis tool. The resulting infonnation about residence time, tank conguration and pathological behaviour was linked to other infonnation from respirometry and flow and load studies. Characterising the wastewater process will become increasingly important as the economic and compliance drivers in the operation of wastewater treatment facilities become increasingly pronounced. Case studies at Royton WWTW, Chorley WWTW, Preston WWTW and Montebello WWTW were used to develop, improve and apply the methodology. Tests at Royton and Chorley were used to develop the practical side of conducting tracer studies. The Preston case study was used to improve the diagnostic methodology. It was demonstrated that consent failures as a result of events are usually a result of a number of (linked) factors, in the case of Preston influenced by the tank conguration. The response of a pulse of dye was measured at Preston in vessel outlet throughout the works. The tracer dyeresponse was used to predict the response to a discharge of high ammoniacal leachate liquor and compared to measured data. This type of calibration experiment facilitated the simulation of different discharge event scenarios. The tracer and modelling techniques were incorporated in a general diagnostic methodology, which caters for a phased approach in diagnostic studies. A series of diagnostic tables take the user through cause - effect hypotheses and possible measurement techniques to use in the diagnostic investigation. Although the diagnostic methodology proved to be a versatile asset optimisation tool, which required considerable less effort than deterministic models, implementation in United Utilities' AMP3 Capital Investment Programme was problematic. The size of the programme and lack of resources forced the company to implement standard rather than tailor-made solutions. However, the diagnostic methodology can easily be applied elsewhere in the wastewater industry.
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Al-Shiekh, Khalil Wael R. "Integrated land capability for ecological sustainability of on-site sewage treatment systems." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16171/.

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The research project was formulated to solve serious environmental and possible public health problems in rural and regional areas caused by the common failure of soil disposal systems used for application of effluent from on-site domestic sewage treatment systems. On-site sewage treatment systems adopt a treatment train approach with the associated soil disposal area playing a crucial role. The most common on-site sewage treatment system that is used is the conventional septic tank and subsurface effluent disposal system. The subsurface effluent disposal area is given high priority by regulatory authorities due to the significant environmental and public health impacts that can result from their failure. There is generally very poor householder maintenance of the treatment system and this is compounded by the failure of the effluent disposal area resulting in unacceptable surface and groundwater contamination. This underlies the vital importance of employing reliable science-based site suitability assessment techniques for effluent disposal. The research undertaken investigated the role of soil physico-chemical characteristics influencing the behaviour of effluent disposal areas. The study was conducted within the Logan City Council area, Queensland State, Australia. About 50% of the Logan region is unsewered and the common type of on-site sewage treatment used is a septic tank with subsurface effluent disposal area. The work undertaken consisted of extensive field investigations, soil sampling and testing, laboratory studies and extensive data analysis. In the field study, forty-eight sites were investigated for their effluent application suitability. The sites were evaluated based on the soil physico-chemical characteristics. The field investigation indicated that there were nine soil orders in the study area. These soil orders were Dermosols, Chromosols, Kandosols, Kurosols, Vertosols, Sodosols, Tenosols, Rudosols and Anthrosols. The soils in all the investigated sites were acidic soils in the pH range between 5 and 6.5. The complexity of the large data matrix obtained from the analysis was overcome by multivariate analytical methods to assist in evaluating the soils' ability to treat effluent and to understand the importance of various parameters. The analytical methods selected to serve this purpose were PROMETHEE and GAIA. The analysis indicated that the most suitable soils for effluent renovation are the Kandosols whilst the most unsatisfactory soil order was found to be Podosol. The GAIA analysis was in agreement with quantitative analysis conducted earlier. An extensive laboratory column study lasting almost one year was undertaken to validate the results of the data analysis from the field investigation. The main objectives of this experiment were to examine the soil behaviour under practical effluent application and to investigate the long-term acceptance rate for these soils. Twelve representative soils were selected for the column experiment from the previously investigated sites and undisturbed soil cores were collected for this purpose. The results from the column study matched closely with the evaluation conducted at the earlier stages of the research. Soil physico-chemical analysis before and after effluent application indicated that the soils' acidity was improved toward neutrality after effluent application. The results indicated that soils have a greater ability to handle phosphorus than nitrogen. The most favorable cation exchange capacity for soils to treat and transmit effluent was between 15 and 40 meq/100g. Based on the results of the column study, the long-term acceptance rate (LTAR) was determined for the investigated twelve soil types. Eleven out of twelve soils reported specific LTAR values between 0.18-0.22 cm/day. For the duration of the laboratory study, the Podosol order did not reach its LTAR value due to the extremely sandy nature of the soil. The time required to achieve LTAR varied between different soils from 40 to 330 days. The outcomes of this research was integrated into a soil suitability map for on-site sewage treatment systems for Logan City Council. This will assist the authorities in providing sustainable solutions for on-site systems failure.
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Bodoh, Michael J. "Reduction of chloride in wastewater effluent with utilization of Six Sigma." Menomonie, WI : University of Wisconsin--Stout, 2006. http://www.uwstout.edu/lib/thesis/2006/2006bodohm.pdf.

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Aziz, Edriyana A. "Fate and transport of oestrogenic compounds from sewage effluent irrigation water." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=12761.

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Flugaur, Nicholas J. "Wastewater effluent treatments and control technologies in the beef processing industry." Online version, 2003. http://www.uwstout.edu/lib/thesis/2003/2003flugaurn.pdf.

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Hendricks, Rahzia. "Assessment of the biological quality of raw and treated effluents from three sewage treatment plants in the Western Cape, South Africa." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6966_1331032010.

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The aim of this study was to compare the water quality of raw wastewater and treated sewage effluents from three different sewage treatment plants in the Western Cape, South Africa. The treatment plants investigated are on the same river system. Sewage treatment plant 1 and 2 use older technologies, while sewage treatment plant 3 has been upgraded and new technologies (membrane bioreactor) were incorporated in the treatment processes. The first objective was to determine the occurrence of total coliforms, Escherichia coli (E. coli) and fluoroquinolone and sulfamethoxazole antibiotic residues in raw wastewater and treated sewage effluents. Bacteria in treated sewage effluents can result in diseases such as dysentery, gastroenteritis, and typhoid upon exposure. A chromogenic test was used to screen for coliforms and E. coli. Enzyme linked Immunosorbent Assays (ELISA) were used to quantitate antibiotic residues (fluoroquinolones and sulfamethoxazole) in raw wastewater and treated sewage effluents. This study showed that bacteria are present in raw wastewater and residual bacteria are released with treated sewage effluents from sewage treatment plants.

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Books on the topic "Sewage effluent"

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Feigin, Amos, Israela Ravina, and Joseph Shalhevet. Irrigation with Treated Sewage Effluent. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-74480-8.

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Institution of Chemical Engineers (Great Britain). Yorkshire Branch., ed. Effluent treatment and waste disposal. Rugby, UK: Institution of Chemical Engineers, 1990.

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Cussion, Sylvia. N-nitrosodimethylamine in industrial effluents and sewage influent and effluent: Report. [Toronto]: Quality Management Unit, Ontario Ministry of the Environment, 1991.

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Srinivas, C. TBP production plant effluent treatment process. Mumbai: Bhabha Atomic Research Centre, 2004.

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Post, L. E. Effluent mixing zone studies. Toronto: Water Resources Branch, 1985.

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Arundel, John. Sewage and industrial effluent treatment: A practical guide. London: Blackwell Science, 1995.

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Jeff, Kuo, and Tang Chi-Chung, eds. Disinfection of wastewater effluent: Comparison of alternative technologies. Alexandria, VA: WERF, 2008.

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Feigin, A. Irrigation with treated sewage effluent: Management for environmental protection. Berlin: Springer-Verlag, 1991.

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I, Ravina, and Shalhevet Joseph, eds. Irrigation with treated sewage effluent: Management for environmental protection. Berlin: Springer-Verlag, 1991.

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Myers, B. J. Sustainable effluent-irrigated plantations: An Australian guideline. Canberra: CSIRO Forestry and Forest Products, 1999.

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Book chapters on the topic "Sewage effluent"

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Feigin, Amos, Israela Ravina, and Joseph Shalhevet. "Irrigation Systems for Sewage Effluent." In Advanced Series in Agricultural Sciences, 175–200. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-74480-8_6.

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Bouma, Johannes. "Subsurface Applications of Sewage Effluent." In Planning the Uses and Management of Land, 665–703. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr21.c27.

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Thomas, D. N., S. J. Judd, and N. Fawcett. "Flocculation Modelling of Primary Sewage Effluent." In Chemical Water and Wastewater Treatment V, 83–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-72279-0_8.

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Jin, Jun, and Takashi Kusui. "Whole Effluent Toxicity Assessment of Sewage Water." In Biodegradation, Pollutants and Bioremediation Principles, 312–32. First edition. | Boca Raton : CRC Press, Taylor & Francis: CRC Press, 2021. http://dx.doi.org/10.1201/9780429293931-17.

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Sopper, William E. "Surface Application of Sewage Effluent and Sludge." In Planning the Uses and Management of Land, 633–63. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr21.c26.

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Feigin, Amos, Israela Ravina, and Joseph Shalhevet. "Sources, Treatment Processes and Uses of Sewage Effluent." In Advanced Series in Agricultural Sciences, 3–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-74480-8_2.

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Iannelli, Renato, and David Giraldi. "Sources and composition of sewage effluent; treatment systems and methods." In Treated Wastewater in Agriculture, 1–50. Oxford, UK: Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444328561.ch1.

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Schur, F. "Analysis of Sewage from Anaerobic Purification of Effluent from a Brewery." In Analysis of Plant Waste Materials, 41–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-662-03887-1_3.

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Feigin, Amos, Israela Ravina, and Joseph Shalhevet. "Effect of Irrigation with Treated Sewage Effluent on Soil, Plant and Environment." In Advanced Series in Agricultural Sciences, 34–116. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-74480-8_3.

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Lia, Wentao, and Aimin Li. "EEM Spectra and Removal Property of Fluorescent DOM in Biologically Treated Sewage Effluent." In Functions of Natural Organic Matter in Changing Environment, 901–4. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5634-2_164.

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Conference papers on the topic "Sewage effluent"

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Loganathan, Dr Kavithaa, Dr Jayaprakash Saththasivam, Dr Oluwaseun Ogunbiyi, Hajar Farzaneh, Prof Gordon Mckay, and Ziad El Jack. "Challenges and Solutions for Treated Sewage Effluent Reuse." In Qatar Foundation Annual Research Conference Proceedings. Hamad bin Khalifa University Press (HBKU Press), 2018. http://dx.doi.org/10.5339/qfarc.2018.eepp120.

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Nasser, Fatima Abdulwahab, Halah Noor Nasir, Zain Zaki Zakaria, and Huseyin Yalcin. "Toxicity Assessment of Treated Sewage Effluent using the Zebrafish Embryo Model." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0218.

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Background: In a context of tremendous economic value, the management and protection of water resources in Qatar has long been a significant issue as part of the global wastewater management plan. The process is based on several stages of treatment in order to deliver high-quality effluent standard. Treated sewage effluent (TSE) can potentially be used for agriculture in Qatar and it should be biologically evaluated before releasing it to the environment. TSE water can be further filtered with techniques that include reverse osmosis, forward osmosis, and nanofiltration. Aim: This project aims to assess the toxicity of differently treated sewage effluent water on the environement using the zebrafish model. Our approach will also be relevant to the assessment of the water quality for agriculture use. Methods: Zebrafish embryos were cultured in different effluent water samples filtered with different techniques. Toxicicity of water was assessed via multiple assasys including: survival rate, tail flicking, and hatching rate. Cardiotoxicity assessment was performed via blood velocity, cardiac output and vessels diameter measurement in major vessels, as well as gene expression for heart failure markers of ANP and BNP by PCR. Results: Samples filtered via Reverse osmosis and nano-filtration resulted in most toxicity. Total dissolved solvent (TDS) measurements were also highest in those samples, suggesting these filteration techniques may result in release of toxic compounds to effluent water. Toxicity assessment is currently ongoing to confirm the findindgs. Conclusion: Utilization of TSE for environmental and agricultural purposes will have an economical value in the nation. It is critically important to determine the most efficient and less toxic ways of water filteration. Zebrafish is a practical model that can be used to assess water toxicity. This project aims to examine toxicity of effluent water filteration techniques using the zebrafish model.
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Jiusheng Li and Lei Chen. "Assessing Emitter Clogging in Drip Irrigation Systems with Sewage Effluent." In 2009 Reno, Nevada, June 21 - June 24, 2009. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.26970.

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Uchimura, Koki, Yuki Sago, Hirotsugu Kamahara, Yoichi Atsuta, and Hiroyuki Daimon. "Treatment of anaerobic digestion effluent of sewage sludge using soilless cultivation." In THE IRAGO CONFERENCE 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4866619.

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Kumar, R. Prasanna, and V. Ajantha Devi. "Real time monitoring and controlling of Marine Sewage Treatment Plant Effluent." In OCEANS 2022 - Chennai. IEEE, 2022. http://dx.doi.org/10.1109/oceanschennai45887.2022.9775422.

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Jiang, Bo, Wenrong Hu, Haiyan Pei, Peng Chen, and Qianhui Liu. "Nitrification Performance of a Pilot-Scale UBAF Treating Secondary Effluent of Municipal Sewage." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5163109.

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Lu, Yifan, Huawei Wu, Yan Xia, and Mei Huang. "Utilization of Lanthanum Carbonate and Bentonite for Phosphorus Removal from Domestic Sewage Effluent." In The Second International Conference on Materials Chemistry and Environmental Protection. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0008189603230326.

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Liu, Yanxiang, Yiling Tong, and Junxia Liu. "Photodegradation of Acetaminophen in Secondary Effluent of Sewage Treatment Plant under Simulated Sunlight Irradiation." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5517910.

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Wen-ting, Song, Li Hai-yan, and Wang Zhi-jun. "Estrogenic effect of effluent from municipal sewage treatment plant on juvenile goldfish (Carassius auratus)." In 2011 International Conference on Electronics, Communications and Control (ICECC). IEEE, 2011. http://dx.doi.org/10.1109/icecc.2011.6068011.

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Senorpe Asem - Hiablie, Herschel A Elliott, Clinton D Church, John E Watson, and Clinton F Williams. "Patterns of estrogen occurrence in sewage treatment plant effluent (STPE) from a university campus." In 2012 Dallas, Texas, July 29 - August 1, 2012. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2012. http://dx.doi.org/10.13031/2013.41896.

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Reports on the topic "Sewage effluent"

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Sparks, Donald L., and Sala Feigenbaum. Effect of Irrigation with Brackish and Sewage Effluent Waters on Potassium Reactions in Soils. United States Department of Agriculture, August 1987. http://dx.doi.org/10.32747/1987.7566847.bard.

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Banin, Amos, Joseph Stucki, and Joel Kostka. Redox Processes in Soils Irrigated with Reclaimed Sewage Effluents: Field Cycles and Basic Mechanism. United States Department of Agriculture, July 2004. http://dx.doi.org/10.32747/2004.7695870.bard.

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The overall objectives of the project were: (a) To measure and study in situ the effect of irrigation with reclaimed sewage effluents on redox processes and related chemical dynamics in soil profiles of agricultural fields. (b) To study under controlled conditions the kinetics and equilibrium states of selected processes that affect redox conditions in field soils or that are effected by them. Specifically, these include the effects on heavy metals sorption and desorption, and the effect on pesticide degradation. On the basis of the initial results from the field study, increased effort was devoted to clarifying and quantifying the effects of plants and water regime on the soil's redox potential while the study of heavy metals sorption was limited. The use of reclaimed sewage effluents as agricultural irrigation water is increasing at a significant rate. The relatively high levels of suspended and, especially, dissolved organic matter and nitrogen in effluents may affect the redox regime in field soils irrigated with them. In turn, the changes in redox regime may affect, among other parameters, the organic matter and nitrogen dynamics of the root zone and trace organic decomposition processes. Detailed data of the redox potential regime in field plots is lacking, and the detailed mechanisms of its control are obscure and not quantified. The study established the feasibility of long-term, non-disturbing monitoring of redox potential regime in field soils. This may enable to manage soil redox under conditions of continued inputs of wastewater. The importance of controlling the degree of wastewater treatment, particularly of adding ultrafiltration steps and/or tertiary treatment, may be assessed based on these and similar results. Low redox potential was measured in a field site (Site A, KibutzGivat Brenner), that has been irrigated with effluents for 30 years and was used for 15 years for continuous commercial sod production. A permanently reduced horizon (Time weighted averaged pe= 0.33±3.0) was found in this site at the 15 cm depth throughout the measurement period of 10 months. A drastic cultivation intervention, involving prolonged drying and deep plowing operations may be required to reclaim such soils. Site B, characterized by a loamy texture, irrigated with tap water for about 20 years was oxidized (Time weighted average pe=8.1±1.0) throughout the measurement period. Iron in the solid phases of the Givat Brenner soils is chemically-reduced by irrigation. Reduced Fe in these soils causes a change in reactivity toward the pesticide oxamyl, which has been determined to be both cytotoxic and genotoxic to mammalian cells. Reaction of oxamyl with reduced-Fe clay minerals dramatically decreases its cytotoxicity and genotoxicity to mammalian cells. Some other pesticides are affected in the same manner, whereas others are affected in the opposite direction (become more cyto- and genotoxic). Iron-reducing bacteria (FeRB) are abundant in the Givat Brenner soils. FeRB are capable of coupling the oxidation of small molecular weight carbon compounds (fermentation products) to the respiration of iron under anoxic conditions, such as those that occur under flooded soil conditions. FeRB from these soils utilize a variety of Fe forms, including Fe-containing clay minerals, as the sole electron acceptor. Daily cycles of the soil redox potential were discovered and documented in controlled-conditions lysimeter experiments. In the oxic range (pe=12-8) soil redox potential cycling is attributed to the effect of the daily temperature cycle on the equilibrium constant of the oxygenation reaction of H⁺ to form H₂O, and is observed under both effluent and freshwater irrigation. The presence of plants affects considerably the redox potential regime of soils. Redox potential cycling coupled to the irrigation cycles is observed when the soil becomes anoxic and the redox potential is controlled by the Fe(III)/Fe(II) redox couple. This is particularly seen when plants are grown. Re-oxidation of the soil after soil drying at the end of an irrigation cycle is affected to some degree by the water quality. Surprisingly, the results suggest that under certain conditions recovery is less pronounced in the freshwater irrigated soils.
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Borch, Thomas, Yitzhak Hadar, and Tamara Polubesova. Environmental fate of antiepileptic drugs and their metabolites: Biodegradation, complexation, and photodegradation. United States Department of Agriculture, January 2012. http://dx.doi.org/10.32747/2012.7597927.bard.

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Many pharmaceutical compounds are active at very low doses, and a portion of them regularly enters municipal sewage systems and wastewater-treatment plants following use, where they often do not fully degrade. Two such compounds, CBZ and LTG, have been detected in wastewater effluents, surface waters, drinking water, and irrigation water, where they pose a risk to the environment and the food supply. These compounds are expected to interact with organic matter in the environment, but little is known about the effect of such interactions on their environmental fate and transport. The original objectives of our research, as defined in the approved proposal, were to: Determine the rates, mechanisms and products of photodegradation of LTG, CBZ and selected metabolites in waters exposed to near UV light, and the influence of DOM type and binding processes on photodegradation. Determine the potential and pathways for biodegradation of LTG, CBZ and selected metabolites using a white rot fungus (Pleurotusostreatus) and ADP, and reveal the effect of DOM complexation on these processes. Reveal the major mechanisms of binding of LTG, CBZ and selected metabolites to DOM and soil in the presence of DOM, and evaluate the effect of this binding on their photodegradation and/or biodegradation. We determined that LTG undergoes relatively slow photodegradation when exposed to UV light, and that pH affects each of LTG’s ability to absorb UV light, the efficiency of the resulting reaction, and the identities of LTG’sphotoproducts (t½ = 230 to 500 h during summer at latitude 40 °N). We observed that LTG’sphotodegradation is enhanced in the presence of DOM, and hypothesized that LTG undergoes direct reactions with DOM components through nucleophilic substitution reactions. In combination, these data suggest that LTG’s fate and transport in surface waters are controlled by environmental conditions that vary with time and location, potentially affecting the environment and irrigation waters. We determined that P. ostreatusgrows faster in a rich liquid medium (glucose peptone) than on a natural lignocellulosic substrate (cotton stalks) under SSF conditions, but that the overall CBZ removal rate was similar in both media. Different and more varied transformation products formed in the solid state culture, and we hypothesized that CBZ degradation would proceed further when P. ostreatusand the ᵉⁿᶻʸᵐᵃᵗⁱᶜ ᵖʳᵒᶠⁱˡᵉ ʷᵉʳᵉ ᵗᵘⁿᵉᵈ ᵗᵒ ˡⁱᵍⁿⁱⁿ ᵈᵉᵍʳᵃᵈᵃᵗⁱᵒⁿ. ᵂᵉ ᵒᵇˢᵉʳᵛᵉᵈ ¹⁴C⁻Cᴼ2 ʳᵉˡᵉᵃˢᵉ ʷʰᵉⁿ ¹⁴C⁻ᶜᵃʳᵇᵒⁿʸˡ⁻ labeled CBZ was used as the substrate in the solid state culture (17.4% of the initial radioactivity after 63 days of incubation), but could not conclude that mineralization had occurred. In comparison, we determined that LTG does not degrade in agricultural soils irrigated with treated wastewater, but that P. ostreatusremoves up to 70% of LTG in a glucose peptone medium. We detected various metabolites, including N-oxides and glycosides, but are still working to determine the degradation pathway. In combination, these data suggest that P. ostreatuscould be an innovative and effective tool for CBZ and LTG remediation in the environment and in wastewater used for irrigation. In batch experiments, we determined that the sorption of LTG, CBZ and selected metabolites to agricultural soils was governed mainly by SOM levels. In lysimeter experiments, we also observed LTG and CBZ accumulation in top soil layers enriched with organic matter. However, we detected CBZ and one of its metabolites in rain-fed wheat previously irrigated with treated wastewater, suggesting that their sorption was reversible, and indicating the potential for plant uptake and leaching. Finally, we used macroscale analyses (including adsorption/desorption trials and resin-based separations) with molecular- level characterization by FT-ICR MS to demonstrate the adsorptive fractionation of DOM from composted biosolids by mineral soil. This suggests that changes in soil and organic matter types will influence the extent of LTG and CBZ sorption to agricultural soils, as well as the potential for plant uptake and leaching.
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Sources and distribution of nitrate in ground water at a farmed field irrigated with sewage treatment-plant effluent, Tallahassee, Florida. US Geological Survey, 1990. http://dx.doi.org/10.3133/wri904006.

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300 Area process sewer piping upgrade and 300 Area treated effluent disposal facility discharge to the City of Richland Sewage System, Hanford Site, Richland, Washington. Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/74121.

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