Results 261 to 270 of about 20,576 (308)

Sulfide Production in Waste Stabilization Ponds

Journal of the Sanitary Engineering Division, 1969
This investigation deals with the production and release of hydrogen sulfide from waste stabilization ponds, and required design modifications, resulting from increased sulfate or hydrogen sulfide content. A 6-ft deep facultative pond was operated under seven different operating conditions.
Earnest F. Gloyna, Ernesto Espino
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Treatment Efficiency of Waste Stabilization Ponds

Journal of the Sanitary Engineering Division, 1972
A practical method is given for evaluating the influence of the hydraulics on waste water pond performance. The analysis is based on time-concentration data collected at the outlet for tracer tests performed on prototype ponds and on a hydraulic model.
Kenneth A. Mangelson, Gary Z. Watters
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Design Principles of Waste Stabilization Ponds

Journal of the Sanitary Engineering Division, 1969
Waste stabilization ponds will be more effectively employed as pollution control systems if suitable design formula and corresponding design parameters are made available to design engineers. To accomplish this objective, an analogy has been drawn between a first-order chemical reactor and a waste stabilization pond.
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Dispersion Model for Waste Stabilization Ponds

Journal of Environmental Engineering, 1985
The partially‐mixed or dispersed‐flow equation is proposed for use in pond design for organic and bacterial reductions. This equation considers the effects of hydraulic detention time (θ), reaction rate coefficients, and the dispersion factor including short‐circuiting, and other hydraulic transport processes which influence the pond's performance ...
Chongrak Polprasert, Kiran K. Bhattarai
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Stability of kinetic models from waste stabilization ponds

Water Research, 1994
Abstract This paper studies the effect of small variations in the value of various parameters on solutions at steady-state in a kinetic model for wastewater stabilization ponds. An analytic method of study is developed together with a function of evaluation whose value provides a measure for stabilizing the results. It was found that the stability of
D. Prats, F. Llavador
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Dynamics of industrial waste stabilization pond treatment process

Environmental Monitoring and Assessment, 2009
Waste stabilization pond is an artificial ecosystem; its performance is governed by the nature of the biological communities it supports. These are primarily used as secondary effluent treatment plants to polish the effluents. However, they are also used to treat the raw sewage and industrial effluents.
Mangala, Veeresh, A V, Veeresh, Basvaraj D, Huddar, Basaling B, Hosetti   +3 more
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Pilot Waste‐Stabilization Pond in Tanzania

Journal of Environmental Engineering, 1992
It is claimed that waste‐stabilization ponds provide an efficient, inexpensive, and appropriate form of wastewater treatment for developing countries. Based on negative experiences in Tanzania, this paper concludes that waste‐stabilization ponds designed by standard western design practice cannot always be expected to perform well without at least ...
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Solar Enhanced Wastewater Treatment in Waste Stabilization Ponds

Water Environment Research, 2009
One of the most popular off‐site wastewater treatment plants used in the tropics is the waste stabilization pond (WSP). Although it has several advantages, its use in urban areas is limited because of its large land area requirement. Hence, this research is aimed at investigating if a solar‐enhanced WSP (SEWSP) can increase treatment efficiency and ...
J C, Agunwamba, J T, Utsev, W I, Okonkwo
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Design of waste stabilization pond systems: A review

Water Research, 2017
A better design instruction for waste stabilization ponds is needed due to their growing application for wastewater purification, increasingly strict environmental regulations, and the fact that most of previous design manuals are outdated. To critically review model-based designs of typical pond treatment systems, this paper analyzed more than 150 ...
Long T. Ho, Wout Van Echelpoel, Peter L.M. Goethals   +2 more
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Algae Removal in Waste Stabilization Ponds

1989
Although waste stabilization ponds are generally considered to be suitable in small communities or for the treatment of industrial wastewaters, there are cases where they are considered to be appropriate for big cities also. They are in use at least 39 countries. They may become feasible if land is available at a low cost.
Ayşen Türkman, Füsun Şengül
openaire   +1 more source