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Journal articles on the topic 'Urban effluents'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

Brissaud, F., E. Blin, S. Hemous, and L. Garrelly. "Water reuse for urban landscape irrigation: aspersion and health related regulations." Water Science and Technology 57, no. 5 (2008): 781–87. http://dx.doi.org/10.2166/wst.2008.162.

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The Mediterranean seaside resort of Le Grau du Roi includes 40 hectares of landscaped areas spray irrigated with river water supplied through a separate network. Wastewater collected from several municipalities is treated in an activated sludge wastewater treatment plant (WWTP) and polished in waste stabilization ponds (WSPs). Planned substitution of treated wastewater for river water is hindered by spray irrigation prohibition within a 100 m distance from houses and recreational areas. WWTP and WSP effluents were monitored for pathogens with a particular attention to Legionella in Spring and

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2

Udoh, J. P., A. J. Otoh, and M. E. Udang. "Biotreatment of brewery effluents for aquaculture use using autochthonous fungi." Tropical Freshwater Biology 29, no. 2 (2021): 123–34. http://dx.doi.org/10.4314/tfb.v29i2.9.

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The potential of reducing environmental impact of untreated brewery effluent was investigated. Although concentrations of pollutants in such effluents are usually considered low and inadvertently discharged into adjacent urban drainage facility, mycoremediation to remove dissolved inorganic nutrients in effluent was conducted with a view for aquaculture use in Uyo metropolis, southeast Nigeria. Raw brewery effluents were obtained and screened for indigenous microbial flora. Autochthonous fungi isolated included Aspergillus niger, Verticillium sp. and Mucor sp. The potential use of isolates as

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3

Obeta, Michael C., Uchenna P. Okafor, and Cletus F. Nwankwo. "Influence of discharged industrial effluents on the parameters of surface water in Onitsha urban area, southeastern Nigeria." Journal of Water and Land Development 42, no. 1 (2019): 136–42. http://dx.doi.org/10.2478/jwld-2019-0054.

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Abstract Chemical industries in Onitsha urban area of southeastern Nigeria have been discharging large quantities of effluents into surface streams. These streams are the primary sources of water used by poor households for domestic purposes. This study examines the effects of effluents on the physicochemical and microbiological characteristics of the recipient streams. This objective was achieved by collecting eight effluents and twenty-two water samples from control points, discharge locations and exit chutes of the effluents for analysis. The results of the study characterised the effluents

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4

Haig, A. J. N. "Use of the Clyde Estuary and Firth for the disposal of effluents." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 90 (1986): 393–405. http://dx.doi.org/10.1017/s026972700000511x.

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SynopsisThe effluents from about half of Scotland's population and industry drain to the Clyde Estuary and Firth, where they cause a number of problems of contamination and pollution. This paper outlines historical aspects of urban growth, effluent production and disposal, pollution and pollution control. The sources, nature, quantities and main effects of effluents discharged are described, as is recent national and international legislation intended to prevent or control pollution. Reference is also made to the determination of licence conditions for effluent discharges by means of the Envir

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Liedhegner, Elizabeth, Brandon Bojar, Rachelle E. Beattie, Caitlin Cahak, Krassimira R. Hristova, and Troy Skwor. "Similarities in Virulence and Extended Spectrum Beta-Lactamase Gene Profiles among Cefotaxime-Resistant Escherichia coli Wastewater and Clinical Isolates." Antibiotics 11, no. 2 (2022): 260. http://dx.doi.org/10.3390/antibiotics11020260.

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The World Health Organization has identified antibiotic resistance as one of the largest threats to human health and food security. In this study, we compared antibiotic resistance patterns between ESBL-producing Escherichia coli from human clinical diseases and cefotaxime-resistant environmental strains, as well as their potential to be pathogenic. Antibiotic susceptibility was tested amongst clinical isolates (n = 11), hospital wastewater (n = 22), and urban wastewater (n = 36, both influent and treated effluents). Multi-drug resistance predominated (>70%) among hospitalwastewater and urb

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Evroula, Hapeshi, Gros Merixtell, Lopez-Serna Rebeca, et al. "Licit and Illicit Drugs in Urban Wastewater in Cyprus." CLEAN-Soil, Air, Water 43, no. 9 (2014): 1272–78. https://doi.org/10.1002/clen.201400483.

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Two multi-residue methods based on off-line solid phase extraction followed by LC-MS/MS have been applied in samples collected from three sewage treatment plants for the identification and quantification of licit and illicit drugs. The occurrence of the drugs in wastewater appears to be influenced by both the operational parameters of each plant and their consumption in the area served by the corresponding plant. Generally, the present study demonstrated that both licit and illicit drugs were found in the effluent wastewater of all urban wastewater treatment plants; a fact suggesting that they

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Peres, Camilla Silva, Mônica Maria Ladeia, Julia Ferreira Da Silva, Laís Pereira Dias, and Ludmila Ferreira Lopes. "Evaluation of Treated Wastewater Quality for Reuse in the Northern Region of Minas Gerais." Revista de Gestão Social e Ambiental 18, no. 2 (2023): e04358. http://dx.doi.org/10.24857/rgsa.v18n2-016.

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Objective: This study aims to analyze the quality of effluents treated at three Wastewater Treatment Plants (WWTPs) in the northern region of Minas Gerais, evaluating reuse potential and proposals. Theoretical framework: The practice of reusing sanitary effluents holds significant economic and environmental importance. It conserves water resources allocated for higher priority uses. When assessed and compliant with regulations, effluents become potential water sources for agriculture and urban squares. The trend towards reusing treated effluents presents an alternative to meet water demands th

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Da Conceição Rodrigues Pereira, Maria, and Márcia Valéria Porto de Oliveira Cunha. "WATER REUSE IN FERTIRRIGATION OF TREATED EFFLUENT, AIMING SOCIO-ENVIRONMENTAL SUSTAINABILITY IN THE REFRIGERATOR’S AREA OF INFLUENCE." Journal of Interdisciplinary Debates 4, no. 03 (2023): 04–14. http://dx.doi.org/10.51249/jid.v4i03.1444.

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The present work aimed to implement the reuse of water after the treatment of industrial effluents from a slaughterhouse and slaughterhouse, through the projection of reuse fronts, aiming at socio-environmental sustainability in the area of influence of the activity, with the following steps being carried out : preparation of a plan for the implementation of post-treatment effluent reuse points; installation of infrastructure for the redistribution of treated effluent on reuse fronts; laboratory analysis of effluents before, during and after treatment; application of internal audit and elabora

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9

Davis, Ernst M., M. Truett Garrett, and Terri D. Skinner. "Significance of indicator bacteria changes in an urban stream." Water Science and Technology 31, no. 5-6 (1995): 243–46. http://dx.doi.org/10.2166/wst.1995.0614.

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An urban coastal stream, above tidal reach, and three municipal wastewater treatment plant effluents were analyzed for fecal coliforms, fecal streptococci and enterococci to determine the effect of dechlorination on those bacterial populations. Analyses were conducted during low and high flow periods from stormwater inflow. Improvement in bacterial water quality was found, principally due to municipality efforts to correct illicit connections and other sewerage system problems. Fecal coliform genera were identified and quantified. Regrowth of dechlorinated effluent bacteria was minimal.

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10

Rubalcaba, A., M. E. Suárez-Ojeda, F. Stüber, et al. "Phenol wastewater remediation: advanced oxidation processes coupled to a biological treatment." Water Science and Technology 55, no. 12 (2007): 221–27. http://dx.doi.org/10.2166/wst.2007.412.

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Nowadays, there are increasingly stringent regulations requiring more and more treatment of industrial effluents to generate product waters which could be easily reused or disposed of to the environment without any harmful effects. Therefore, different advanced oxidation processes were investigated as suitable precursors for the biological treatment of industrial effluents containing phenol. Wet air oxidation and Fenton process were tested batch wise, while catalytic wet air oxidation and H2O2-promoted catalytic wet air oxidation processes were studied in a trickle bed reactor, the last two us

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von Sperling, M., and J. G. B. de Andrada. "Simple wastewater treatment (UASB reactor, shallow polishing ponds, coarse rock filter) allowing compliance with different reuse criteria." Water Science and Technology 54, no. 11-12 (2006): 199–205. http://dx.doi.org/10.2166/wst.2006.761.

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UASB reactors followed by polishing ponds comprise simple and economic wastewater treatment systems, capable of reaching very high removal efficiencies of pathogenic organisms, leading to the potential use of the effluent for unrestricted irrigation. However, for other types of reuse (urban and industrial), ponds are limited in the sense of producing effluents with high suspended solids (algae) concentrations. The work investigates a system with coarse rock filters for polishing the pond effluent. The overall performance of the system is analyzed, together with the potential for different type

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Cavenati, Simone, Pedro N. Carvalho, C. Marisa R. Almeida, M. Clara P. Basto, and M. Teresa S. D. Vasconcelos. "Simultaneous determination of several veterinary pharmaceuticals in effluents from urban, livestock and slaughterhouse wastewater treatment plants using a simple chromatographic method." Water Science and Technology 66, no. 3 (2012): 603–11. http://dx.doi.org/10.2166/wst.2012.218.

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Minocycline, oxytetracycline, tetracycline, enrofloxacin and ceftiofur, commonly used veterinary pharmaceuticals, were searched in four urban, two livestock and two slaughterhouse effluents from wastewater treatment plants (WWTPs) in the north of Portugal. A simple method that includes solid-phase extraction followed with analysis by high-performance liquid chromatography with diode array detector was established and applied to the simultaneous determination of the five pharmaceuticals in WWTP effluents. This method, which is expeditious, inexpensive and available in most laboratories, showed

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Dyagelev, M. Yu. "Improving the efficiency of biological treatment of industrial wastewater as part of urban wastewater." Theoretical and Applied Ecology, no. 2 (June 26, 2023): 96–103. http://dx.doi.org/10.25750/1995-4301-2023-2-096-103.

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The article presents the results of studies of treatment of industrial wastewater as a part of urban wastewater. A biosorption method using powdered activated carbon was used as a method to increase the efficiency of biological purification. The research was carried out on a pilot plant consisting of four tanks simulating the operation of an aerotank. In each series of experiments, wastewater, activated sludge and special solutions simulating industrial effluents of different origin were added in equal proportions to the tank. Based on the presented results, an assessment of the effectiveness

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Chukwuma, Okafor Ugochukwu, Orji Michael Uchenna, Umeh Sophina Ogonna, and Onuorah Samuel Chinedu. "Effects of Effluents’ Discharge from Some Paint Industries on Soil’s Physicochemical Properties and Bioattenuation of Polluted Soil." Industrial and Domestic Waste Management 2, no. 2 (2022): 46–60. http://dx.doi.org/10.53623/idwm.v2i2.110.

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Rapid population growth resulting in industrial proliferation and urbanization has led to the rapid increase in pollution of the environment. Paint industries in urban areas mostly channel their wastewater into streams and on land, which results in the pollution of the receiving environment. This study aims to determine the impact of effluent discharges from paint industries on the soils’ physicochemical properties and the clean-up of the polluted soil through monitored natural attenuation. Composite samples of paint-effluents and soils were collected from paint industries. Their bioattenuatio

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15

Schroeter, H. O. "Toxic Contaminant Loadings from Municipal Sources in Ontario Areas of Concern." Water Quality Research Journal 32, no. 1 (1997): 7–22. http://dx.doi.org/10.2166/wqrj.1997.002.

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Abstract Annual flow volumes and contaminant mass discharges from such sources as stormwater runoff, combined sewer overflows (CSOs) and sewage treatment plant (STP) effluents were computed for 47 urban centres located in 17 Canadian Areas of Concern (AOCs). Urban centres were defined as entities with sewage treatment plants servicing populations greater than 1,000. The relative annual flow volume contribution from individual sources varies significantly among AOC areas. By effluent type, stormwater runoff contributes 17 to 65%, CSOs 1 to 6%, and STP effluents about 35 to 80%. During wet weath

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Swaray, Kadiatu Amtu, Hui Gong, Danyang Zhu, Mohamed Yateh, and Xiaohu Dai. "Assessment of Liberia's Beer Industry Effluent Discharge Parameters in the Context of Urban Sustainability." European Journal of Theoretical and Applied Sciences 2, no. 3 (2024): 616–38. http://dx.doi.org/10.59324/ejtas.2024.2(3).47.

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Due to untreated brewery effluent and increasing industrial growth, most of Liberia's rivers have considerable water body pollution. The nature and extent of pollution caused by wastewater effluent discharged into these environments have not been thoroughly examined. This study looked into the effects of such effluents on the beer industry in Montserrado, Liberia. It assesses discharged effluent parameters, sustainable management practices, and potential wastewater reuse options within the context of urban sustainability. The findings highlight the need for immediate and substantial interventi

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Johnson, M., and D. D. Mara. "Aerated rock filters for enhanced nitrogen and faecal coliform removal from facultative waste stabilization pond effluents." Water Science and Technology 51, no. 12 (2005): 99–102. http://dx.doi.org/10.2166/wst.2005.0436.

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Facultative waste stabilization ponds in the UK, loaded at 80 kg BOD/ha day, produce effluents which comply with the European Urban Waste Water Treatment Directive (i.e., ≤25 mg filtered BOD/l and ≤150 mg SS/l). However, the Environment Agency of England and Wales typically requires a higher effluent quality of ≤40 mg/l unfiltered BOD and ≤60 mg/l SS, both on a 95-percentile basis. An ammonium-nitrogen requirement might also be applied. Traditionally, maturation ponds and reedbeds have been used to upgrade facultative pond effluents, requiring large land areas. This paper describes and compare

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Kadiatu, Amtu Swaray, Gong Hui, Zhu Danyang, Yateh Mohamed, and Dai Xiaohu. "Assessment of Liberia's Beer Industry Effluent Discharge Parameters in the Context of Urban Sustainability." European Journal of Theoretical and Applied Sciences 2, no. 3 (2024): 616–38. https://doi.org/10.59324/ejtas.2024.2(3).47.

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Due to untreated brewery effluent and increasing industrial growth, most of Liberia's rivers have considerable water body pollution. The nature and extent of pollution caused by wastewater effluent discharged into these environments have not been thoroughly examined. This study looked into the effects of such effluents on the beer industry in Montserrado, Liberia. It assesses discharged effluent parameters, sustainable management practices, and potential wastewater reuse options within the context of urban sustainability. The findings highlight the need for immediate and substantial interventi

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Auclair, Joelle, Chantale André, Eva Roubeau-Dumont, and François Gagné. "Ecotoxicity of a Representative Urban Mixture of Rare Earth Elements to Hydra vulgaris." Toxics 12, no. 12 (2024): 904. https://doi.org/10.3390/toxics12120904.

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Rare earth elements (REEs) are considered as emerging contaminants due to their use in the fabrication process of current technologies. As such, their aquatic toxicity, especially as a mixture, is not well understood, as it has been scarcely investigated. The purpose of this study was to shed light on the sublethal and lethal toxicity of a realistic mixture of five REE in Hydra vulgaris. The REE mixture was composed of five elements (Gd, Ce, Nd, Y and Dy, with a total REE concentration of 0.137 µg/L = 1× concentration) that were found in six municipal effluents in Canada at the same concentrat

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Ranjan, Ram. "A Potential PES Mechanism for Agroforestry-Led Industrial Wastewater Remediation Using Short-Rotation Trees." Water Economics and Policy 07, no. 02 (2021): 2150006. http://dx.doi.org/10.1142/s2382624x21500065.

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Industrial effluents and municipal wastewaters are increasingly finding their way into freshwater bodies, posing serious health and environmental challenges. In this paper, the potential for industrial wastewater remediation through agroforestry is explored for a peri-urban farming region in India. Farmers are incentivized under a payment for ecosystem services (PES) mechanism to convert their farmlands into poplar-based agroforestry and utilize industrial effluents for irrigating trees. Additional income can be derived through sale of poplar timber which enhances the attractiveness of such a

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Ma, Jiawen, Yaoyu Feng, Yue Hu, Eric N. Villegas, and Lihua Xiao. "Human infective potential of Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi in urban wastewater treatment plant effluents." Journal of Water and Health 14, no. 3 (2016): 411–23. http://dx.doi.org/10.2166/wh.2016.192.

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Cryptosporidiosis, giardiasis, and microsporidiosis are important waterborne diseases. In the standard for wastewater treatment plant (WWTP) effluents in China and other countries, the fecal coliform count is the only microbial indicator, raising concerns about the potential for pathogen transmission through WWTP effluent reuse. In this study, we collected 50 effluent samples (30 L/sample) from three municipal WWTPs in Shanghai, China, and analyzed for Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi by microscopy and/or polymerase chain reaction (PCR). Moreover, propidium

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Basseres, A., and Y. Pietrasanta. "Mechanisms for the Purification of Effluents with High Nitrogen Content by a Plant Cover of Water Hyacinths (Eichhornia Crassipes)." Water Science and Technology 24, no. 9 (1991): 229–41. http://dx.doi.org/10.2166/wst.1991.0252.

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The mechanisms for the purification of three effluents containing a high level of ammoniacal nitrogen by water hyacinths (Eichhornia crassipes) have been studied. The pollutants (nitrogen, phosphorus, COD and suspended solids) were eliminated by means of the creation of a favourable ecosystem. The liberation of oxygen and the root support provided by the rhizosphere allow a nitrifying bacterial flora to develop. Denitrification can occur when there is no more available nitrogen, namely at the bottom of the pond or when a high BOD mobilises all the available oxygen in the pond. Ammoniacal nitro

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Angelidis, Michael O. "The impact of urban effluents on the coastal marine environment of Mediterranean islands." Water Science and Technology 32, no. 9-10 (1995): 85–94. http://dx.doi.org/10.2166/wst.1995.0673.

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The impact of the urban effluents of Mytilene (Lesvos island, Greece) on the receiving coastal marine environment, was evaluated by studying the quality of the city effluents (BOD5, COD, SS, heavy metals) and the marine sediments (grain size, organic matter, heavy metals). It was found that the urban effluents of Mytilene contain high organic matter and suspended particle load because of septage discharge into the sewerage network. Furthermore, although the city does not host important industrial activity, its effluents contain appreciable metal load, which is mainly associated with the partic

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Vignati, Davide, Giusy Lofrano, Giovanni Libralato, et al. "Photocatalytic ZnO-Assisted Degradation of Spiramycin in Urban Wastewater: Degradation Kinetics and Toxicity." Water 13, no. 8 (2021): 1051. http://dx.doi.org/10.3390/w13081051.

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The removal of contaminants of emerging concern from urban wastewater treatment plants (WWTPs) remains a challenge to promote safe wastewater reuse practices. Macrolides are the most abundant antibiotics detected in untreated wastewater and their concentration in WWTPs effluents is only partially reduced by conventional treatments. Among several advanced oxidation processes (AOPs), photocatalysis has demonstrated the capability to effectively remove pharmaceuticals from different aqueous matrices. Recently, ZnO has emerged as an efficient, promising, and less expensive alternative to TiO2, due

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Pratt, C. J., J. D. G. Mantle, and P. A. Schofield. "Urban Stormwater Reduction and Quality Improvement through the Use of Permeable Pavements." Water Science and Technology 21, no. 8-9 (1989): 769–78. http://dx.doi.org/10.2166/wst.1989.0280.

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Construction details are given of an experimental permeable pavement, comprising four separate sub-base sections containing different stone or crushed rock. Sub--base drain effluents have been monitored for discharge volume, flow rate and water quality parameters on the four sections. Preliminary results are presented which indicate that usefu1 volume and flow rate reductions may be obtained via permeable pavements, and that water quality may be enhanced by sedimentation and other treatment processes occurring within the pavement. Effluent quality may be improved as compared with that discharg

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Prevost, B., F. S. Lucas, K. Ambert-Balay, P. Pothier, L. Moulin, and S. Wurtzer. "Deciphering the Diversities of Astroviruses and Noroviruses in Wastewater Treatment Plant Effluents by a High-Throughput Sequencing Method." Applied and Environmental Microbiology 81, no. 20 (2015): 7215–22. http://dx.doi.org/10.1128/aem.02076-15.

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ABSTRACTAlthough clinical epidemiology lists human enteric viruses to be among the primary causes of acute gastroenteritis in the human population, their circulation in the environment remains poorly investigated. These viruses are excreted by the human population into sewers and may be released into rivers through the effluents of wastewater treatment plants (WWTPs). In order to evaluate the viral diversity and loads in WWTP effluents of the Paris, France, urban area, which includes about 9 million inhabitants (approximately 15% of the French population), the seasonal occurrence of astrovirus

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Philippi, Luiz S., Rejane H. R. da Costa, and Pablo H. Sezerino. "Domestic Effluent Treatment through Integrated System of Septic Tank and Root Zone." Water Science and Technology 40, no. 3 (1999): 125–31. http://dx.doi.org/10.2166/wst.1999.0152.

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According to national statistical data, only 10% of the Brazilian urban population have their sewage treated. In the rural areas, where people usually treat sewage trough septic tank systems, this value is not greater than 5%. This situation, therefore, depicts a lack of basic sanitation in Brazil, which, in turn, is responsible for the utilisation of individual systems for the treatment of sewage by more than 100 million people. Generally, soils and water rivers are, no longer, the last fate for the discharged effluents. Wetland system for the treatment of domestic sewage have been employed i

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Boari, G., and I. M. Mancini. "Combined Treatments of Urban and Olive Mill Effluents in Apulia, Italy." Water Science and Technology 22, no. 9 (1990): 235–40. http://dx.doi.org/10.2166/wst.1990.0087.

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The effluent from olive mill plants (OME) presents a seasonal problem, as although small in volume it has very high organic content, and in consequence it is particularly difficult to meet Italian law discharge limits. This problem has been carefully studied in Apulia where, during the olive milling season, organic pollution exceeds that from domestic use by a factor of three. Preliminary research allowed the estimation of organic load per ton of milled olives, and the comparison of the effectiveness of feasible treatment processes. The results have been utilized in the Water Reclamation Plan

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Saura Martinez, Helena, Nicole Egloff, and Heike Schmidt-Posthaus. "Investigation of Proliferative Kidney Disease in Brown Trout and Habitat Characteristics Associated with a Swiss Wastewater Treatment Plant." Environments 10, no. 9 (2023): 152. http://dx.doi.org/10.3390/environments10090152.

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Wastewater treatment plants (WWTP) play a critical role in mitigating adverse environmental impacts of urban and industrial wastewater by removing pollutants and reducing the risk of contamination. Discharges of treated effluents from WWTPs can still have significant effects on freshwater ecosystems, particularly on sensitive species like brown trout. We analyzed the effects of a modern WWTP on a freshwater ecosystem, studying fish biodiversity and biomass, the occurrence of the parasitic disease Proliferative Kidney Disease (PKD) on brown trout, river water temperatures throughout the year an

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Muhigwa, Merci, Soufiane Sanou, Dominique Kantagba, et al. "Characterization of extended-spectrum beta-lactamase and carbapenemase genes in bacteria from environment in Burkina Faso." Journal of Infection in Developing Countries 17, no. 12 (2023): 1714–21. http://dx.doi.org/10.3855/jidc.18116.

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Introduction: This study aimed to characterize extended-spectrum beta-lactamase (ESBL) and carbapenemase genes in bacteria from the environment in Bobo-Dioulasso, Burkina Faso. Methodology: This study was conducted from January 18 to December 31, 2019. Environmental samples were collected from the effluents of Souro Sanou University Hospital Center and the wastewater treatment plant at Bobo-Dioulasso. MacConkey agar media supplemented with 4 µg/mL cefotaxime was used for bacterial growth, and identification of bacteria was performed using API 20E system (BioMerieux SA, Lyon, France). Antibioti

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Hurtado, Thais Cristina Couto, Eduardo M. Silva e. Silva, Ernandes Sobreira Oliveira Júnior, Wilkinson Lopes Lázaro, Bárbara Ferraz Bühler, and Francisco Lledo dos Santos. "Analysis of Urban Stream Water with Effluent Discharge in the West Region of Mato Grosso." Revista Brasileira de Ciência, Tecnologia e Inovação 9, no. 3 (2024): 333–45. https://doi.org/10.18554/rbcti.v9i3.8184.

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Between January 9 and 11, 2024, an expedition was conducted across 12 municipalities in the western region of Mato Grosso to assess the water quality of urban streams receiving domestic effluents. For this purpose, the Water Quality Index (WQI) and a Rapid Assessment Protocol (RAP) were used to analyze water pollution and anthropogenic impacts surrounding these watercourses. One water body was selected per municipality. Water samples were collected downstream of the effluent discharge point for both physicochemical and microbiological analyses. Results indicated that some surface water sources

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Moreira da Silva, Manuela, Flávia C. Resende, Bárbara Freitas, Jaime Aníbal, António Martins, and Amílcar Duarte. "Urban Wastewater Reuse for Citrus Irrigation in Algarve, Portugal—Environmental Benefits and Carbon Fluxes." Sustainability 14, no. 17 (2022): 10715. http://dx.doi.org/10.3390/su141710715.

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Water scarcity is increasing in the Mediterranean and alternative sources of water are needed to meet food production needs, protect the environment and reduce the effects of climate change. Currently, many urban wastewater treatment plants (WWTP) produce high volumes of treated effluents which can be an alternative source of water for agriculture irrigation, since they fulfill the quality requirements for crops and the environment. This work analyzed the quantity and quality of a treated effluent produced by an urban WWTP in Algarve, and the environmental benefits of its use on the irrigation

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Dana, Muñoz Carabajal,, Daruich, Griselda Jorgelina, and Pedranzani, Hilda Elizabeth. "Utilizing Tetradesmus obliquus for Phycoremediation Enhanced Nitrogen and Phosphorus Removal in Urban Wastewater Treatment." Journal of Global Ecology and Environment 20, no. 4 (2024): 169–79. http://dx.doi.org/10.56557/jogee/2024/v20i48955.

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Microalgae can scavenge pollutants through a process called phycoremediation, which involves the removal or biotransformation of pollutants in wastewater and gaseous media. Algae must grow rapidly, tolerate seasonal and diurnal variations, and form aggregates easily. In this study, the phosphorus and nitrogen removal capacity of the microalga Tetradesmus obliquus, isolated from urban water bodies, was evaluated and its cultivation was proposed as an alternative for tertiary treatment of urban effluents. The inoculum was placed in a bioreactor at 25 ºC with natural lighting for 21 days in modif

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Bello, Mustapha M., and Lawan Aliyu Abubakar. "CHARACTERISTICS OF EFFLUENTS FROM AQUACULTURE FARMS IN KANO STATE AND SUITABILITY AS IRRIGATION WATER." FUDMA JOURNAL OF SCIENCES 8, no. 3 (2024): 277–82. http://dx.doi.org/10.33003/fjs-2024-0803-2359.

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This work assessed the physicochemical characteristics of aquaculture effluents generated in aquaculture farms in Kano State to establish their suitability as irrigation water. Samples were collected from different aquaculture farms in the urban and peri-urban areas where the farms are clustered, and the physicochemical parameters, including the concentrations of nutrients, heavy metals, electrical conductivity (EC), and sodium adsorption ratio (SAR) were evaluated. The physicochemical characteristics of the effluents vary across the farms and the differences in the mean values were statistica

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Zola, Fernanda Cavicchioli, Franciely Velozo Aragão, Rafael S. Zola, Cristhiane M. P. Okawa, and Generoso De Angelis Neto. "WASTEWATER EFFLUENT GENERATED BY GROUT INDUSTRIES IN BRAZIL." Journal of Urban and Environmental Engineering 10, no. 1 (2016): 35–41. http://dx.doi.org/10.4090/juee.2016.v10n1.035041.

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Civil construction has grown inadvertently in Brazil, and, consequently, its demands for raw material. The production of such materials, as to any industrial process, yields wastewater effluents and has, in general, as destination water resources such as rivers and lakes. Nonetheless, government inspection can not keep up with the number of starting companies, resulting in the projection of impunity. The present work, the first of the kind, has the goal of analyzing the some chemical physics aspects of wastewater effluents samples generated from grout industries. The study shows that the pH of

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Zola, Fernanda Cavicchioli, Franciely Velozo Aragão, Rafael S. Zola, Cristhiane M. P. Okawa, and Generoso De Angelis Neto. "WASTEWATER EFFLUENT GENERATED BY GROUT INDUSTRIES IN BRAZIL." Journal of Urban and Environmental Engineering 10, no. 1 (2016): 35–41. http://dx.doi.org/10.4090/juee.2016.v10n1.35-41.

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Civil construction has grown inadvertently in Brazil, and, consequently, its demands for raw material. The production of such materials, as to any industrial process, yields wastewater effluents and has, in general, as destination water resources such as rivers and lakes. Nonetheless, government inspection can not keep up with the number of starting companies, resulting in the projection of impunity. The present work, the first of the kind, has the goal of analyzing the some chemical physics aspects of wastewater effluents samples generated from grout industries. The study shows that the pH of

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Bruchet, A., P. Charles, M. L. Janex Habibi, and K. Glucina. "Monitoring and treatment of selected nanoparticles." Water Science and Technology 68, no. 7 (2013): 1454–60. http://dx.doi.org/10.2166/wst.2013.314.

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With their increasing use, nanoparticles will become concentrated in urban effluents in the future. Both adequate monitoring methods and water treatment technologies will be necessary to assess and avoid consumer exposure. This paper reports results in these two challenging areas for both organic and inorganic nanoparticles. Treatment experiments indicate that lamellar settling is better adapted than dissolved air flotation for SiO2 nanoparticles removal. The use of 120 mg/L of Aqualenc coagulant without flocculant addition allows 99% removal to be achieved for an initial concentration of 1 g/

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Proulx, D., and J. de la Noüe. "Harvesting daphnia magna grown on urban tertiarily-treated effluents." Water Research 19, no. 10 (1985): 1319–24. http://dx.doi.org/10.1016/0043-1354(85)90188-5.

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Gagné, F., C. Gagnon, P. Turcotte, and C. Blaise. "Changes in Metallothionein Levels in Freshwater Mussels Exposed to Urban Wastewaters: Effects from Exposure to Heavy Metals?" Biomarker Insights 2 (January 2007): 117727190700200. http://dx.doi.org/10.1177/117727190700200012.

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Municipal effluents are complex mixtures of compounds such as heavy metals, aromatic and aliphatic hydrocarbons, and micro-organisms and are released in aquatic ecosystems. The purpose of this study was to verify whether changes in metallothioneins (MT) were associated with the accumulation of labile metals in tissue of freshwater mussels exposed to the dispersion plume of a major municipal effluent. Mussels were placed in experimental cages deployed at sites 1.5 km upstream, 8 km downstream and 12 km downstream of the outfall of a major, primary-treated municipal effluent in the St. Lawrence

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Esposito, Biagio, Massimo Capobianco, Maria Luisa Navacchia, et al. "Safe Reuse of Wastewater: Organic Contaminants Degradation and Sanitization by Ozone in a Modulable Continuous-Flow System." Applied Sciences 13, no. 12 (2023): 7087. http://dx.doi.org/10.3390/app13127087.

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Effective treatments improving both the chemical and microbiological quality of reclaimed wastewater are urgently needed. Ozone is a clean, economic, and environmentally friendly method to sanitize solutions and surfaces and to degrade organic pollutants. A simple, continuous-flow water-ozoniser system was tested to evaluate its effectiveness in batch treating various kinds of wastewater, including the effluent from small municipal plants. The degradation effects on a mixture of urban and industrial standard pollutants were investigated by HPLC-UV-MS analysis and biotoxicological assays. The r

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Flores-Munguía, Enrique J., José Luis Rosas-Acevedo, Aurelio Ramírez-Hernández, Alejandro Aparicio-Saguilan, Rosa M. Brito-Carmona, and Juan Violante-González. "Release of Microplastics from Urban Wastewater Treatment Plants to Aquatic Ecosystems in Acapulco, Mexico." Water 15, no. 20 (2023): 3643. http://dx.doi.org/10.3390/w15203643.

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Contamination of aquatic ecosystems by microplastics (MPs) is mainly due to the release of high levels of MP particles from treated effluents by wastewater treatment plants (WWTPs). Due to the lack of policies and regulations establishing criteria for the control and elimination of MPs from WWTP effluents, this research evaluates the presence of 38 and 150 µm MPs in influents and effluents from three WWTPs in the port of Acapulco, Mexico. Optical microscopy and Fourier transform infrared spectroscopy revealed that the MPs were polyethylene, polypropylene, polyethylene terephthalate, and polyvi

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Gonçalves, Priscila S., Camila S. P. Oliveira, Matheus Prem Mendes, Marcelo Netto Duarte, and William Costa Rodrigues. "Efficiency of the aquatic macrophyte salvinia auriculata in purification of urban effluents, validated by allium test (Allium Cepa L.)." Revista Eletrônica TECCEN 8, no. 2 (2015): 29. http://dx.doi.org/10.21727/teccen.v8i2.941.

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This study aimed to evaluate the efficiency of the aquatic macrophytes Salvinia auriculata Aublet in purification of polluted effluents, and evaluate macroscopically the efficiency of macrophytes using the Allium cepa Linnaeus (onion test). Three collections were performed in September 2011, the first analysis was performed with water collected directly from River Santa Catarina, the second was performed seven days after the contact of the effluent with the macrophytes, and the third, fifteen days after the first analyses. The data were analyzed using Student’s t-test (p<0.05). To verify th

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Gonçalves, Priscila S., Camila S. P. Oliveira, Matheus Prem Mendes, Marcelo Netto Duarte, and William Costa Rodrigues. "Efficiency of the aquatic macrophyte salvinia auriculata in purification of urban effluents, validated by allium test (Allium Cepa L.)." Revista Eletrônica TECCEN 8, no. 2 (2015): 29. http://dx.doi.org/10.21727/198409932015.teccen.v8i2.29-35.

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This study aimed to evaluate the efficiency of the aquatic macrophytes Salvinia auriculata Aublet in purification of polluted effluents, and evaluate macroscopically the efficiency of macrophytes using the Allium cepa Linnaeus (onion test). Three collections were performed in September 2011, the first analysis was performed with water collected directly from River Santa Catarina, the second was performed seven days after the contact of the effluent with the macrophytes, and the third, fifteen days after the first analyses. The data were analyzed using Student’s t-test (p<0.05). To verify th

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Elskens, Marc, Kersten Van Langenhove, Vincent Carbonnel, Natacha Brion, and Steven J. Eisenreich. "Dynamics of estrogenic activity in an urban river receiving wastewater effluents: effect-based measurements with CALUX." Water Emerging Contaminants & Nanoplastics 2, no. 2 (2023): 9. http://dx.doi.org/10.20517/wecn.2023.15.

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Estrogenic substances (ES) in an urban river Zenne (BE) dominated by wastewater effluents were assessed over the course of one year. To measure the bioequivalent (BEQ) 17 β-estradiol (E2) concentrations of ES, the biological effect-based methodology - the Chemical-Activated LUciferase gene eXpression (CALUX) bioassay was used. Daily water discharges were collected from January 2015 to February 2016 at or near the sampling stations in the Brussels Capital Region. An annual water budget shows that approximately 50% of the Zenne River flow downstream is from wastewater effluent. The estrogenic ac

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Comes, F., M. C. Huau, and P. Kloninger. "Impact de la desinfection de l'effluent d'une station depuration en zone cotiere mediterraneenne - The Impact of Disinfection of the Effluent of a Wastewater Treatment Plant on the Mediterranean Coast." Water Science and Technology 25, no. 12 (1992): 123–33. http://dx.doi.org/10.2166/wst.1992.0344.

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The removal of microorganisms from the wastewater of municipal treatment plants is more and more in demand in order to comply with the effluents standards required for the ecotoxicological protection of the receiving water, especially to levels of seaside resorts and shellfish breeding marine areas. Therefore, in these sensitive coastal areas close to seaside resorts, the study of the bacteriological pollution of the effluents has become a priority because of the inefficiency of the traditional wastewater treatment processes for microbic contamination. The bacterial concentration levels of the

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Alanoca, L., S. Guédron, D. Amouroux, et al. "Synergistic effects of mining and urban effluents on the level and distribution of methylmercury in a shallow aquatic ecosystem of the Bolivian Altiplano." Environmental Science: Processes & Impacts 18, no. 12 (2016): 1550–60. http://dx.doi.org/10.1039/c6em00547k.

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Lake Uru Uru (3686 m a.s.l.) located in the Bolivian Altiplano region receives both mining effluents and urban wastewater discharges originating from the surrounding local cities which are under rapid development.

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Ekute, B. O., and E. U. Etim. "Effect of Ota Industrial Estate effluents on surface water quality of Oruku River, Ota, South Western Nigeria." Journal of Applied Sciences and Environmental Management 25, no. 9 (2021): 1671–75. http://dx.doi.org/10.4314/jasem.v25i9.19.

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The effect of industrial effluents on surface water quality of Oruku River was investigated in this study by analyzing selected water quality indicators such as pH, dissolved oxygen (DO) and total dissolved solids (TDS) were examined amongst other physicochemical parameters using standard methods. Results show that, average pH of the surface waters ranged from 5.53±0.31 to 6.23±0.45 with SR3 having the highest value. This indicates that all the water sources were alkaline. The effluents had an average pH range of 5.95 ± 1.12 to 6.40 ± 0.48. A comparison of these average pH values with effluent

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Deemter, Dennis, Fabricio Eduardo Bortot Coelho, Isabel Oller, Sixto Malato, and Ana M. Amat. "Assessment of a Novel Photocatalytic TiO2-Zirconia Ultrafiltration Membrane and Combination with Solar Photo-Fenton Tertiary Treatment of Urban Wastewater." Catalysts 12, no. 5 (2022): 552. http://dx.doi.org/10.3390/catal12050552.

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The objective of this study was to assess the combination of a photocatalytic TiO2-coated ZrO2 UF membrane with solar photo-Fenton treatment at circumneutral pH for the filtration and treatment of urban wastewater treatment plant (UWWTP) effluents. Photocatalytic self-cleaning properties were tested with a UWWTP effluent under irradiation in a solar simulator. Then, both the permeates and retentates from the membrane process were treated using the solar photo-Fenton treatment. The UWWTP effluent was spiked with caffeine (CAF), imidacloprid (IMI), thiacloprid (THI), carbamazepine (CBZ) and dicl

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Daouda, Mohamed M. Arêmou, S. Peace Hounkpè, M. Belfrid Djihouessi, A. V. Onesime Akowanou, Martin Pépin Aïna, and Patrick Drogui. "Physicochemical assessment of urban wastewater of Cotonou (Benin)." Water Science and Technology 83, no. 6 (2021): 1499–510. http://dx.doi.org/10.2166/wst.2021.073.

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Abstract The present study aims to fill the data gap analysis in urban wastewaters characteristics in Benin and its statistical analysis. Physicochemical parameters such as pH, electrical conductivity (EC), Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5), Total Kjeldahl Nitrogen (TKN), Total Phosphorus (TP) and UV Absorbance at 254 nm, were determined on domestic (greywater and blackwater) and industrial (hospital, pharmaceutical and commercial laundry) wastewater in Cotonou city. Analysis of variance showed a strong significant difference in the physico-chemistry of the various

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von Sperling, M., and L. C. A. M. Mascarenhas. "Performance of very shallow ponds treating effluents from UASB reactors." Water Science and Technology 51, no. 12 (2005): 83–90. http://dx.doi.org/10.2166/wst.2005.0432.

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Polishing ponds are units conceived for the post-treatment of the effluents from anaerobic reactors, are designed as maturation ponds, and aim at a further removal of organic matter and a high removal of pathogenic organisms. The paper investigates the performance of four very shallow (H = 0.40 m) polishing ponds in series, with very low detention times (1.4–2.5 days in each pond), treating anaerobic effluent from the city of Belo Horizonte, Brazil. The system was able to achieve excellent results in terms of BOD and E. coli removal, and good results in terms of ammonia removal, allowing compl

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