With the acceleration of urbanization and industrial development, the treatment rate of urban sewage and industrial wastewater has increased year by year. Taking China for instance, there were more ...

Laboratory digestion studies using waste activated sludges (WAS) were conducted to compare the digestion performance between anaerobic and aerobic processes. Nine samples of WAS from seven wastewater ...

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The study investigated the unbiodegradable fraction of particulate chemical oxygen demand (PCOD) in thickened waste activated sludge (TWAS) using semicontinuous-flow completely-mixed anaerobic ...