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Thèses sur le sujet « Pathogen pollution »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

Lau, Ken Wan Keung. "The identification of novel marine bacteria, and the construction of single chain fragment variable antibodies for the control of a viral pathogen /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?AMCE%202006%20LAU.

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Paul-Pont, Ika. "Sensibilité et adaptation de populations de bivalves marins soumis à des stress multiples : infestation parasitaire, contamination microbienne et pollution métallique." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14008/document.

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Dans les écosystèmes littoraux, l‘activité anthropique, mais aussi le contexte naturel induisent chez les organismes aquatiques des situations de « multistress ». Parmi les sources potentielles de perturbation, trois d‘entre elles ont été étudiées : contamination métallique, infection bactérienne et infestation parasitaire. Une approche intégrée de leurs interactions sur la réponse génétique, protéique, cellulaire et populationnelle chez la coque Cerastoderma edule et la palourde japonaise Ruditapes philippinarum a été entreprise sur le terrain et en laboratoire. In situ, un suivi de deux ans

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3

Vautrin, Florian. "Milieux urbains et exposition aux Actinobactéries pathogènes : cas particulier des bassins d’infiltration." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1300.

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En ville, les eaux pluviales sont collectées et dirigées vers des bassins d’infiltration. Elles amassent lors du ruissellement et du lessivage des sols et des toitures des polluants divers : hydrocarbures, matières organiques, métaux lourds. Ces particules accumulées à la surface des bassins d’infiltration forment une couche de sédiments urbains riches en polluants qui représentent une nouvelle niche écologique pour des bactéries pathogènes opportunistes. On retrouve des Actinobactéries pathogènes dont Nocardia cyriacigeorgica. Pour l’heure, les études réalisées sur cette espèce en terme de ph

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4

Andrianjakarivony, Felana Harilanto. "Caractérisation du virome d’un écosystème tropical fortement anthropisé : la lagune Ebrié en Côte d’Ivoire." Electronic Thesis or Diss., Aix-Marseille, 2022. http://www.theses.fr/2022AIXM0579.

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Dans cette thèse, nous avons choisi d’étudier la composante virale d’un site lagunaire exposé aux rejets domestiques, agricoles et industriels : la Lagune Ebrié bordée par la ville d’Abidjan, en Côte d’Ivoire. Les objectifs de cette thèse visaient (1) à caractériser les viromes benthiqes et planctoniques dans 7 sites de cette lagune présentant des niveaux d'eutrophisation contrastés, en distinguant les viromes ADN et ARN, et (2) à examiner les stratégies de reproduction virale. Pour cela, une approche métagénomique shotgun combinée à des analyses bioinformatiques a été utilisée. Nous avons mon

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5

McMenemy, Paul. "A mathematical framework for designing and evaluating control strategies for water- & food-borne pathogens : a norovirus case study." Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/25453.

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Norovirus (NoV) is a significant cause of gastroenteritis globally, and the consumption of oysters is frequently linked to outbreaks. Depuration is the principle means employed to reduce levels of potentially harmful agents or toxins in shellfish. The aim of this thesis is to construct mathematical models which can describe the depuration dynamics of water-borne pathogens, and specifically examine the dynamics of NoV during depuration for a population shellfish. Legislation is currently under consideration within the EU by the Directorate-General for Health and Consumers (DG SANCO) to limit th

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6

Chu, Suk-ling. "Impact of indoor air pathogens on human health /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17457798.

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Jarraud, Nicolas Stephane. "The effects of ambient air pollution on leaf pathogens of rose and sycamore." Thesis, Imperial College London, 2000. http://hdl.handle.net/10044/1/11424.

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8

Obiri-Danso, Kwasi. "Seasonal variation of indicator and pathogenic bacteria in coastal and inland bathing waters." Thesis, Lancaster University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301090.

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9

Wermuth, James A. "DETERMINING FACTORS THAT CONTRIBUTE TO NONPOINT SOURCE POLLUTION IN THE LOWER KENTUCKY WATERSHED." UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_theses/440.

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The water quality in the United States has greatly improved since the implementation of the Clean Water Act (CWA) in the early 1970s. Unfortunately, the Clean Water Act only addresses one kind of water pollution, point source pollution. The major problem that is present in the degradation of todays water quality has to deal with nonpoint source pollution. Agriculture is commonly regarded as the leading contributor to nonpoint source pollution in the United States. This study uses two analytical tools to try to determine the significant factors in the transport of pollutants in the Lower Kentuc

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Chu, Suk-ling, and 朱淑玲. "Impact of indoor air pathogens on human health." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31253362.

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11

Arief, Ismail Shoieb Akaram. "Evaluation of biochar soil amendments in reducing soil and water pollution from pathogens in poultry manure." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117216.

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This project addresses concerns from the Canadian public about the quality of water in regions where many agricultural operations are located. Fecal coliforms are endemic in poultry and are difficult to eradicate from production facilities. Poultry manure is a reservoir of Campylobacter jejuni, Escherichia coli (including O157:H7) and Salmonella spp. Biochar, the charcoal produced from pyrolysis of biomass, is gaining global recognition due to its unique properties when applied as a soil amendment. Biochar could play an important role in controlling the mobility of pathogens in soil and water

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12

Macaigne, Frédéric. "Flore mycologique pathogène isolée de quelques piscines de l'agglomération bordelaise." Bordeaux 2, 1989. http://www.theses.fr/1989BOR23055.

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13

Mohan, C. V. "Modulatory effects of cadmium and copper on the susceptibility and immune response of common carp, Cyprinus carpio (L) to selected pathogens." Thesis, University of Stirling, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280056.

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14

Lee, Kai-Yip, and 李繼業. "Indoor air pathogens and HVAC systems in office buildings." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31255929.

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15

Symonds, Erin M. "Viruses Found in Raw Sewage and Their Potential to Indicate Fecal Pollution in Coastal Environments." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002528.

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16

Hussein, Khwam Reissan. "Source tracking of faecal indicator bacteria of human pathogens in bathing waters : an evaluation and development." Thesis, University of Plymouth, 2014. http://hdl.handle.net/10026.1/3011.

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Bacterial water pollution is a significant problem because it is associated with reduction in the ‘quality’ of water systems with a potential impact on human health. Faecal indicator bacteria (FIB) are usually used to monitor the quality of water, and to indicate the presence of pathogens in water bodies. However, enumeration alone does not enable identification of the precise origin of these pathogens. This study aimed to monitor the quality of bathing water and associated fresh water in and out of the ‘bathing season’ in the UK, and to evaluate the use of microbial source tracking (MST) such

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17

HAGNERE, CATHERINE. "Symbioses d'amibes libres et de bacteries de l'environnement hydrique induisant une mercuri-resistance et une limitation de la proliferation de bacteries pathogenes." Strasbourg 1, 1993. http://www.theses.fr/1993STR15011.

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18

Lucero-Ramirez, Baltazar. "The effects of time and temperature on the fate of pathogens and indicator bacteria during municipal wastewater sludge-mesophilic anaerobic digestion, air-drying, and composting /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004325.

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19

Craig, Shelby G. "Bacterial Indicators of Fecal Pollution: Exploring Relationships between Fecal Coliform and Enterococcus Groups in Central and South Florida Surface Waters." NSUWorks, 2016. http://nsuworks.nova.edu/occ_stuetd/445.

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Ambient and recreational surface waters worldwide experience fecal pollution due to a variety of anthropogenic sources. Fecal waste has been proven, for over a century, to harbor pathogenic microorganisms which subsequently cause a variety of disease and illness in human hosts. The benefits of utilizing fecal indicator bacteria (FIB) as a simple, inexpensive means to detect fitful human pathogens within a variety of water matrices are vast. However, no universal agreement exists in regard to which indicator is best suited for detection of fecal contamination and pathogens in environmental wate

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20

Odjadjare, Emmanuel Erufuare Onogwuwhenya. "Prevalence of listeria pathogens in effluents of some wastewater treatment facilities in the Eastern Cape province of South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/246.

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Wastewater discharges may contain health compromising pathogens and carcinogenic and/or chemical substances that could compromise the public health and impact negatively on the environment. The present study was conducted between August 2007 and July 2008 to evaluate the Listeria abundance (as free-living and plankton associated species) and physicochemical qualities of the final effluents of three wastewater treatment facilities in the Eastern Cape Province of South Africa selected to represent typical urban, peri-urban and rural communities and the impact of the discharged final effluents on

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Saayman, Michael John. "The establishment of a routine monitoring technique for detecting the most prevalent pathogenic viruses in river water, Western Cape, South Africa." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1497.

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Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Biomedical Technology in the Faculty of Health and Wellness Sciences at the Cape Peninsula University of Technology, 2012<br>In many developed countries worldwide the provision of safe, clean water is an expected commodity. In South Africa however, as in most developing countries, the access and supply of water safe for human consumption is challenged or complicated by pollution and more recently water availability. Point-source pollutants in surface- and groundwater are normally the most concentrated close

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Pinto, Karla Cristiane. "Avaliação sanitária das águas e areias de praias da Baixada Santista, São Paulo." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/6/6134/tde-28102010-142452/.

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O Brasil possui em sua área costeira grandes metrópoles onde diversas atividades humanas são desenvolvidas, podendo trazer prejuízos à qualidade das águas costeiras. O litoral de São Paulo, constituído por 16 municípios incluindo-se Cubatão, apresenta peculiaridades diferenciadas. O tipo de poluição mais encontrado na costa paulista é a poluição fecal causada por despejo de esgotos domésticos, os quais transportam organismos patogênicos cuja presença pode levar a agravos à saúde humana. O objetivo deste estudo é o de avaliar a qualidade sanitária de águas e areias de praias da Baixada Santista

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23

Mgcoyi, Bulelani William. "Quality assessment of agricultural water used for fertigation in the Boland district." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2011. http://hdl.handle.net/11462/174.

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Thesis (M. Tech. (Agriculture)) -- Central University of Technology, Free state, 2011<br>Quality assessment of agricultural water used for fertigation in the Boland district. The study was undertaken to determine the influence of seasonal changes on the water quality (chemical and microbial analyses) of five different rivers in the Boland. The data was collected in the five most important water sources that are used for irrigation purposes in the district, i.e. Berg river, Eerste river, Klapmuts River, Klippies river and Krom river. The samples were collected from all sites once every three we

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Fox, John Tyler. "Spatiotemporal Patterns and Drivers of Surface Water Quality and Landscape Change in a Semi-Arid, Southern African Savanna." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/81462.

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The savannas of southern Africa are a highly variable and globally-important biome supporting rapidly-expanding human populations, along with one of the greatest concentrations of wildlife on the continent. Savannas occupy a fifth of the earth's land surface, yet despite their ecological and economic significance, understanding of the complex couplings and feedbacks that drive spatiotemporal patterns of change are lacking. In Chapter 1 of my dissertation, I discuss some of the different theoretical frameworks used to understand complex and dynamic changes in savanna structure and composition.

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Noyer, Mégane. "Développement d'indicateurs microbiens de multipollutions en Méditerranée : vers un outil d'évaluation de la qualité des eaux douces Particle-attached riverine bacteriome shifts in a pollutant-resistant and pathogenic community during a mediterranean extreme storm event Evolution of the particle-attached riverine archaeome compared to the bacteriome as a result of multipollution following a mediterranean extreme event." Thesis, Perpignan, 2020. http://www.theses.fr/2020PERP0027.

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Les écosystèmes d’eau douce sont très vulnérables face aux perturbations anthropiques. Ils peuvent en effet subir de multiples pollutions via entre autres le lessivage des sols des bassins versants mais aussi la remobilisation des sédiments des lits des rivières et des réseaux d’assainissement, phénomènes accentués lors des épisodes pluvieux, particulièrement intenses et fréquents dans les régions au climat méditerranéen. Lors d’un épisode méditerranéen étudié précédemment, il a été démontré que des déversements de mélanges de polluants se produisaient, coïncidant avec le pic de débit et du dé

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Jordan, lozano José. "Transmissions indirectes via l’environnement de pathogènes impliquées dans les gastroentérites aiguës de l’Homme à/autour de Bogotá (Colombie) Contamination of water, leafyvegetables and air by human enteric pathogens (GI and GII noroviruses, rotavirus type A, Salmonella spp., Shigella spp., Cryptosporidium spp.) in the suburb of Bogotá (Colombia) Mouse intestinal villi as a model system for studies of Norovirus infection." Thesis, Avignon, 2020. http://www.theses.fr/2020AVIG0359.

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Les gastroentérites aiguës affectent chaque année entre un quart et la moitié des personnes dans le Monde. Elles sont causes de morbidité, de mortalité et de coûts de santé importants. Leur transmission directe ou indirecte via l’eau, les aliments, l’air ou les surfaces inertes dépend de leur étiologie (virale, bactérienne ou parasitaire) et du contexte local. Bogotá et sa région présentent plusieurs spécificités : des eaux usées rejetées en rivière souvent sans ou après seulement un traitement primaire, la mise en décharge des papiers toilettes, couches et protections souillés par les excréme

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Bararugurika, Zacharie. "Pathogenic pollution of the Baynespruit." Thesis, 2011. http://hdl.handle.net/10413/8955.

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The status of the Baynespruit bacteriological water quality is very alarming - E-coli concentrations have far exceeded the allowable limit of both local and international guidelines for more than a decade, namely 2000-2010. Concentrations of indicator bacteria have been recorded as high as 2419000 cfu/100 ml, whereas guideline levels of E-coli for recreational contact are about 130 cfu/100 ml. In this study, statistical analyses were carried out on data from two sampling points to clarify the seasonal changes and the variability of the pollution. Cross-correlation analyses showed that there wa

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Ntema, Vusi McMillan. "Detection of Vibrio cholerae and Vibrio parahaemolyticus by molecular and culture methods from source water to household container-stored water at the point-of-use in rural Vhembe communities in South Africa." Thesis, 2010. http://hdl.handle.net/10210/3100.

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M.Tech.<br>With the recent cholera outbreak in Zimbabwe and the outbreak taking a sub-regional dimension with cholera cases being reported from neighbouring countries like Botswana and South Africa, there was a need to monitor drinking water from environmental water sources as well as household water-storage containers at the point-of-use in rural communities. Although conventional culture-based microbiological methods for the identification of Vibrio species from environmental water samples are reliable, they require several days to complete (Khan and Cerniglia, 1994). Culture dependent and c

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Ghoor, Samira. "Pro-inflammatory cytokine expression as an indicator of bacterial pathogenicity in water." Thesis, 2010. http://hdl.handle.net/10210/3134.

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M. Tech.<br>Background: Waterborne disease contributes significantly to the total global disease burden. Populations in rural areas of South Africa depend on untreated waters for consumption and sanitation. Contamination of public water supplies by harmful bacteria such as pathogenic E. coli poses a major risk for public health. Ingestion of these pathogenic microorganisms present in the contaminated and untreated waters could cause infection, leading to systemic inflammatory responses manifested by the production of various proinflammatory cytokines. To date, there is no human system test ava

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Manegabe, Bahati Justin. "Assessment of pathogenic bacteria and heavy metal pollution in sediment and water of Kahwa River, Bukavu, Democratic Republic of the Congo." Diss., 2015. http://hdl.handle.net/10500/19633.

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Anthropogenic activities generate waste products that pollute the environment with bacteria and heavy metals. This research assessed pollution of the Kahwa River, Bukavu Town, DRC with cadmium and lead (HMs) and bacterial enteropathogens. A survey of businesses, households and healthcare facilities showed general use of the river to remove effluent and waste. Indicator organisms were cultured at over 200 cfu/100 ml showing faecal contamination of the river water. Antibiotic resistance was shown by enteropathogenic Vibrio cholerae and Salmonella typhi to ampicillin and cotrimoxazole with some s

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Ayinde, Wasiu Babatunde. "Synthesis of biopolymer-metal oxide nanoparticles reinforced composites for fluoride and pathogens removal in groundwater." Thesis, 2019. http://hdl.handle.net/11602/1412.

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Department of Ecology and Resource Management<br>PhDENV<br>Groundwater has traditionally been perceived to be low in chemical species toxicity and microbiologically 'pure'. However, depending on the geological chemistry, formations and anthropogenic activities creating the frequent occurrence of microbiological contamination and excess toxic chemical constituents, the high quality of groundwater as a drinking water source can easily be compromised rendering it unsafe, thus, leading to severe waterborne epidemics. The rapid increase in fluoride and microbial contamination of groundwater have be

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Mpenyana-Monyatsi, Lizzy. "Silver nanoparticle-resin filter system for drinking water disinfection and inhibition of biofilm formation." 2013. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000739.

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D. Tech. Water care.<br>Groundwater is the main source of drinking in most rural areas of South Africa and is supplied to the communities without prior treatment. However, the contamination of groundwater sources by pathogenic bacteria poses a public health concern to these communities. This study was aimed at developing and evaluating the effectiveness of filter materials coated with silver nanoparticles for the removal of pathogenic microorganisms from groundwater as well as the inhibition of biofilm formation in drinking water systems.

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Mudau, Khuthadzo Lunsford. "An assessment of water quality and occurrence of antibiotic-resistant bacteria in Naauwpoortspruit River, Mpumalanga province, South Africa." Diss., 2021. http://hdl.handle.net/10500/27841.

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Decreasing surface water quality in South Africa has become an issue of concern as the population grows, industrial and agricultural activities expand, and environmental pollution increases. Wastewater treatment plants and other anthropogenic activities are liable for releasing raw and inadequately treated effluents into the surface water. Extensive pollution accompanied by the use of disinfectants, pesticides, and other chemical pollutants has been attributed to increased antimicrobial resistance in bacteria such as Escherichia coli in surface water, increasing environmental antibiotic resi

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De, Bruyn Karin. "A water resources quality assessment case study involving a package plant in Mogale city." Diss., 2011. http://hdl.handle.net/10500/5594.

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Inadequately treated wastewater effluent is harmful to the receiving aquatic environment. Water-borne chemicals and microbial pathogens pose a health risk to anyone living downstream from sewage treatment facilities. This study assessed the effluent from a package plant with a design capacity of 48kℓ/24 hours, servicing 12 household units and a restaurant in Mogale City. Over a 12 month period, fortnightly water samples were collected from ten selected sites including two boreholes, a river and two dams. Standard parameters including physical (pH, EC, temperature, DO and SS), chemical (nutrien

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