The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
Themistokles D Lekkas - One of the best experts on this subject based on the ideXlab platform.
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a simple empirical model for activated sludge thickening in secondary Clarifiers
Water Research, 2002Co-Authors: Dimosthenis L. Giokas, Panayotis A. Paraskevas, Evangelos K Paleologos, Themistokles D LekkasAbstract:A simple empirical model for the thickening function of the activated sludge secondary Clarifiers is presented. The proposed approach relies on the integration of previous models and it is based on the phenomenon of dilution of the incoming activated sludge in the feeding well of the settling tanks. The method provides a satisfactory description of sludge stratification within the Clarifier. The only requirements are limited to parameters which are readily incorporated into the routine analysis performed in an activated sludge plant, thereby eliminating the need for additional experimental or computational effort. The method was tested in a full-scale activated sludge plant and it was found that it describes fairly well the return sludge concentration, the diluted sludge blanket concentration, the sludge blanket solids concentration and the sludge blanket height of full-scale secondary Clarifiers.
Dimosthenis L. Giokas - One of the best experts on this subject based on the ideXlab platform.
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a simple empirical model for activated sludge thickening in secondary Clarifiers
Water Research, 2002Co-Authors: Dimosthenis L. Giokas, Panayotis A. Paraskevas, Evangelos K Paleologos, Themistokles D LekkasAbstract:A simple empirical model for the thickening function of the activated sludge secondary Clarifiers is presented. The proposed approach relies on the integration of previous models and it is based on the phenomenon of dilution of the incoming activated sludge in the feeding well of the settling tanks. The method provides a satisfactory description of sludge stratification within the Clarifier. The only requirements are limited to parameters which are readily incorporated into the routine analysis performed in an activated sludge plant, thereby eliminating the need for additional experimental or computational effort. The method was tested in a full-scale activated sludge plant and it was found that it describes fairly well the return sludge concentration, the diluted sludge blanket concentration, the sludge blanket solids concentration and the sludge blanket height of full-scale secondary Clarifiers.
Evangelos K Paleologos - One of the best experts on this subject based on the ideXlab platform.
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a simple empirical model for activated sludge thickening in secondary Clarifiers
Water Research, 2002Co-Authors: Dimosthenis L. Giokas, Panayotis A. Paraskevas, Evangelos K Paleologos, Themistokles D LekkasAbstract:A simple empirical model for the thickening function of the activated sludge secondary Clarifiers is presented. The proposed approach relies on the integration of previous models and it is based on the phenomenon of dilution of the incoming activated sludge in the feeding well of the settling tanks. The method provides a satisfactory description of sludge stratification within the Clarifier. The only requirements are limited to parameters which are readily incorporated into the routine analysis performed in an activated sludge plant, thereby eliminating the need for additional experimental or computational effort. The method was tested in a full-scale activated sludge plant and it was found that it describes fairly well the return sludge concentration, the diluted sludge blanket concentration, the sludge blanket solids concentration and the sludge blanket height of full-scale secondary Clarifiers.
Panayotis A. Paraskevas - One of the best experts on this subject based on the ideXlab platform.
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a simple empirical model for activated sludge thickening in secondary Clarifiers
Water Research, 2002Co-Authors: Dimosthenis L. Giokas, Panayotis A. Paraskevas, Evangelos K Paleologos, Themistokles D LekkasAbstract:A simple empirical model for the thickening function of the activated sludge secondary Clarifiers is presented. The proposed approach relies on the integration of previous models and it is based on the phenomenon of dilution of the incoming activated sludge in the feeding well of the settling tanks. The method provides a satisfactory description of sludge stratification within the Clarifier. The only requirements are limited to parameters which are readily incorporated into the routine analysis performed in an activated sludge plant, thereby eliminating the need for additional experimental or computational effort. The method was tested in a full-scale activated sludge plant and it was found that it describes fairly well the return sludge concentration, the diluted sludge blanket concentration, the sludge blanket solids concentration and the sludge blanket height of full-scale secondary Clarifiers.
Michel Prevost - One of the best experts on this subject based on the ideXlab platform.
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Toxic cyanobacterial breakthrough and accumulation in a drinking water plant: A monitoring and treatment challenge
Water Research, 2012Co-Authors: Arash Zamyadi, Sherri L. Macleod, Natasha Mcquaid, Yan Fan, Stephan Dörner, Sebastien Sauve, Michel PrevostAbstract:The detection of cyanobacteria and their associated toxins has intensified in recent years in both drinking water sources and the raw water of drinking water treatment plants (DWTPs). The objectives of this study were to: 1) estimate the breakthrough and accumulation of toxic cyanobacteria in water, scums and sludge inside a DWTP, and 2) to determine whether chlorination can be an efficient barrier to the prevention of cyanotoxin breakthrough in drinking water. In a full scale DWTP, the fate of cyanobacteria and their associated toxins was studied after the addition of coagulant and powdered activated carbon, post clarification, within the Clarifier sludge bed, after filtration and final chlorination. Elevated cyanobacterial cell numbers (4.7×106cells/mL) and total microcystins concentrations (up to 10mg/L) accumulated in the Clarifiers of the treatment plant. Breakthrough of cells and toxins in filtered water was observed. Also, a total microcystins concentration of 2.47μg/L was measured in chlorinated drinking water. Cyanobacterial cells and toxins from environmental bloom samples were more resistant to chlorination than results obtained using laboratory cultured cells and dissolved standard toxins. © 2011 Elsevier Ltd.