sewage sludge thickening Articles
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Anaerobic thermophilic digestion of sewage sludge with a thickened sludge recycle
The process of anaerobic thermophilic digestion of municipal wastewater sludge with a recycled part of thickened digested sludge, was studied in semi-continuous laboratory digesters. This modified recycling process resulted in increased solids retention time (SRT) with the same hydraulic retention time (HRT) as compared with traditional digestion without recycling. Increased SRT without ...
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What Exactly Is The Technique Of Sewage Sludge Management?
Sewage sludge may be the end product of wastewater which includes undergone treatment. It consists of inorganic and organic materials. These materials could be a variety of materials including high concentrations of plant nutrients, pathogens and organic chemicals. Therefore, it is essential that this sludge is properly managed and treated in order that it may have a less severe environmental ...
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V-Bank Transition (VTS) - Robert O. Pickard Environmental Centre, Ottawa, Canada - Case Study
THE PROBLEM: The RobertO. Pickard Environmental Centre (ROPEC) in Ottawa, Canada was undergoing needed upgrades and expansions to its thickening and dewatering building. This building plays a vital role by in water treatment providing sewage receiving and pumping, sludge mixing and thickening, as well as dewatering digested biosolids. These processes release H2S, Ammonia, and other VOC's into ...
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4-Step Wastewater Sludge Treatment Process
What is in sewage sludge? Sewage sludge is a byproduct of treated wastewater. It is composed of both organic and inorganic materials, a large concentration of plant nutrients, organic chemicals, as well as pathogens. Therefore, it is extremely important to properly treat such sludge in order to minimize its environmental repercussions. Here is a brief overview of the sludge treatment process to ...
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Influence of Fe(II) addition on heavy metal bioleaching from sewage sludge with mixed inocula
The indigenous mixed inocula were cultured and enriched from the thickened waste sewage sludge for heavy metal bioleaching. The mixed inocula were then used for bioleaching, and 2 g/L sulphur was added. The influences of FeSO4?7H2O dosage on heavy metals (Zn, Cu, Pb and Cd) and nutrients (nitrogen and phosphorus) bioleaching were investigated. Results show that the addition of FeSO4?7H2O ...
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What Is the Sludge Treatment Process?
Raw, untreated sewage is a serious hazard to the environment as well as to the nearby population. However, through proper treatment, wastewater facilities can keep up with demand, reduce pathogenic risks, and reintroduce clean water back into the environment. Learn more about the role of sludge treatment in improving wastewater processing. Sewage Sludge When municipal wastewater treatment ...
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