Pathogen removal mechanisms in anoxic wastewater stabilization ponds
Anoxic wastewater stabilization ponds can reduce land requirements by as much as two-thirds of that required for facultative ponds and can avoid the environmental nuisances of odour and corrosion, compared with anaerobic ponds. When effluent reuse is to be considered, the aim of wastewater treatment is not only to reduce degradable organic matter but ...
M. B. Pescod, A. Almasi
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Modelling sludge accumulation in anaerobic wastewater stabilization ponds
Sludge accumulation in the first anaerobic pond at the Alsamra Wastewater Treatment Plant in Jordan has been monitored over a period of years. Homogeneous distribution of sludge over the pond bottom has not been achieved. The maximum amount of sludge has not accumulated near the inlet.
M. B. Pescod, Muwaffaq M. Saqqar
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Occurrence of Clostridium difficile in two types of wastewater treatment plants
Wastewater is a potential environmental source of Clostridium difficile, although a direct link with community-acquired C. difficile infection (CA-CDI) in humans has not yet been established. The present study was performed to determine the occurrence of
Mahnaz Nikaeen +3 more
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Variability in phytoplankton community structure and influence on stabilization pond functioning
Density of phytoplankton in stabilization ponds influences treatment performance. The study hypothesized that the phytoplankton community structure varies according to local and temporal changes and consequently influences the treatment of the effluent ...
Emmanuel Bezerra D'Alessandro +2 more
doaj +1 more source
The Comparison of parasite eggs and protozoan cysts of urban raw wastewater and efficiency of various wastewater treatment systems to remove them [PDF]
One of the most important quality characteristics associated with wastewater reuse in agriculture is the microbial quality. This study aimed to determine the efficiencies of Ghasreshirin (constructed wetland), Islamabadgharb and Gilangharb wastewater ...
حضرتی, صادق +4 more
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The Capital Improvement Plan Environmental Assessment Process [PDF]
This report contains one explicit mention of Waller Creek and how a Convention Center 66" Water Transmission Line Relocation resulted in a recommendation for the restoration of Waller Creek banks.This report outlines the current requirements for ...
Lyday, Mike
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Stabilization ponds are a common treatment technology for wastewater generated by dairy industries. Large proportions of cheese whey are thrown into these ponds, creating an environmental problem because of the large volume produced and the high ...
María Florencia Eberhardt +2 more
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Assessing the influence of the carbon oxidation-reduction state on organic pollutant biodegradation in algal-bacterial photobioreactors [PDF]
The influence of the carbon oxidation-reduction state (CORS) of organic pollutants on their biodegradation in enclosed algal-bacterial photobioreactors was evaluated using a consortium of enriched wild-type methanotrophic bacteria and microalgae. Methane,
Bahr, M. +4 more
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Mathematical modeling and optimization of wastewater stabilization ponds using nonlinear programming
This research work proposes a mathematical optimization model for constructing two ponds (1. Facultative pond and 2. Maturation pond) provided in series. The model uses concrete volume as its objective minimization function.
Hafiz Qasim Ali, Osman Üçüncü
doaj +1 more source
Sunlight-mediated inactivation of health-relevant microorganisms in water: a review of mechanisms and modeling approaches. [PDF]
Health-relevant microorganisms present in natural surface waters and engineered treatment systems that are exposed to sunlight can be inactivated by a complex set of interacting mechanisms.
Boehm, Alexandria +16 more
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