Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Faecal coliform"”.
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Investigating the relationship between nitrification and pathogen reduction in biological wastewater treatment systems
… at secondary treatment and their effect on faecal coliform and E. coli numbers. The activated sludge system which is the most common biological treatment system was the case study. Focus was on the concurrent occurrence of nitrification and pathogen reduction processes at secondary treatment …
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Some ecological factors affecting the input and population level of total and faecal coliforms and salmonella in Twelve Mile Creek, Lake Ontario and sewage waters near St. Catharines, Ontario
… the Input and Population Levels of Total and Faecal Coliforms and Salmonella in Twelve Mile Creek, Lake Ontario and Sewage Waters Near St. Catharines, Ontario. Supervisor: Dr. M. Helder. The present study was undertaken to investigate the role of some ecological factors on sewage-Dorne …
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Potential of selected microalgae in bioremediation of wastewater polluted dam water: A case of Goreangab dam in Windhoek, Namibia
… day 6 and day 12 and quantitatively assessed for faecal and total coliform bacteria, heavy metals (Pb and Cd) as well as nutrients (phosphorous and nitrates). A one-way analysis of variance (ANOVA) indicated that there were no statistical differences between the mean values of Pb (p = 0.346) and …
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Groundwater quality assessment in the Ngaka Modiri Molema District using the Water Quality Index
… purposes include, Escherichia coli (E. coli), Faecal coliform, total dissolved solids (TDS), electrical conductivity (EC), pH, nitrate, sulfate, fluoride, chloride, manganese, iron, zinc, and copper. For livestock purposes TDS, EC, pH, nitrate, sulfate, chloride, calcium, magnesium, sodium, and …
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Assessment of groundwater quality and community’s experiences in relation to water quantity and quality challenges in Lephalale Municipality, Waterberg District, Limpopo Province in South Africa
… Health Organisation (WHO) in terms of total coliform and faecal coliform, respectively. This can pose health risks to consumers. The hydrogeochemical facies revealed the dominance of mixed Ca-Mg-Cl and Ca-Cl water type which indicated the governance of rock-water interaction. About 19 % of …
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Ecological Management Strategies for Impounded Harbours
… after impoundment. Sewage contamination, with faecal coliform bacteria occasionally exceeding 30,000 cfu 100 mtˉ¹, improved unequivocally after impoundment, but stricter controls on internal sources are required. The permanently anoxic harbour sediments, consisting mainly of silt, contained Cd …
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Application of hazard analysis critical control point (HACCP) concept to study cattle slaughterhouse hygiene and Carcass contamination in Zambia
… had overall mean aerobic plate count, mean total coliform count, and mean coliform count ranges of logio3.67 - 4.14/cm^; logio 1.63 - 2.44/cm^ and logio 1.23 - 1.59/cm^ respectively. Municipal slaughterhouses C and D, with no defined slaughter and dressing procedures, recorded lowest hygiene …
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Application of hazard analysis critical control point (HACCP) concept to study cattle slaughterhouse hygiene and Carcass contamination in Zambia
… had overall mean aerobic plate count, mean total coliform count, and mean coliform count ranges of logio3.67 - 4.14/cm^; logio 1.63 - 2.44/cm^ and logio 1.23 - 1.59/cm^ respectively. Municipal slaughterhouses C and D, with no defined slaughter and dressing procedures, recorded lowest hygiene …
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Numerical modelling of solute transport processes using higher order accurate finite difference schemes. Numerical treatment of flooding and drying in tidal flow simulations and higher order accurate finite difference modelling of the advection diffusion equation for solute transport predictions.
… studies in the U. K., simulating nitrate and faecal coliform distributions respectively, with the results showing a marked improvement in comparison with the results obtained by the second order central difference scheme. Details are also given of a refined numerical representation of flooding …
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Minimising Groundwater Contamination from Pit Latrines: Lessons from the Global Amphitheatre for South Africa
Pit latrines or toilets are considered to be suitable for the containment of human excreta and they are environment-friendly. Although previous studies have shown that there are some improvements in terms of access to sanitation, the reality is that most South African households still do not have …
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Resorcinol-formaldehyde/titania (RFTi) gel composites for wastewater treatment
… reduction of indicator microorganisms (total and faecal coliform and Escherichia coli) was in agreement with the results obtained through adsorption analysis, with no bacterial colonies found after treatment. The synthesised sample was reusable for four repeated cycles without significant loss of …