Sludge reduction potential of the activated sludge process by integrating an oligochaete reactor

Investigation of the Excess Sludge Reduction in SBR by Oxidizing Some Sludge by Ozone

The excessive biological sludge production is one of the disadvantages of aerobic process such as SBR. So the problem of excess sludge production along with its treatment , and disposal in aerobic processes in municipal and industrial waste water can be seen in many parts of the world even in our country . to solve the problem of excess sludge production , reducing in by oxidizing some of t...

A modified oxic-settling-anaerobic activated sludge process using gravity thickening for excess sludge reduction

Oxic-settling-anaerobic process (OSA) was known as a cost-effective way to reduce the excess sludge production with simple upgrade of conventional activated sludge process (CAS). A low oxidation-reduction potential (ORP) level was the key factor to sludge decay and lysis in the sludge holding tank of the OSA process. However, the ORP control with nitrogen purge or chemical dosing in the OSA pro...

Systematic multimodeling methodology applied to an activated sludge reactor model

The Microbiology of Activated Sludge Process

feasibility of using the dried sludge by municipal wastewater treatment with activated sludge process

background: using the sludge as fertilizer on farms is one of the options to dispose it, which due to its variety of pathogenic microorganisms, it may cause a wide range of bacterial and parasitic diseases in human and livestock. the purpose of this study is to investigate the feasibility of using dried sludge produced in municipal wastewater treatment processes to fertilize agricultural lands ...