Anaerobic stabilization of waste activated sludge at different temperatures and solid retention times: Evaluation by sludge reduction, soluble chemical oxygen demand release and dehydration capability
The optimum SRT for the stabilization of WAS should be higher than 10.7 d. Effects of temperature on SCOD release were greater at SRT of 32 d and 6.4 d. CST was not correlated with soluble proteins/soluble carbohydrates in supernatant. CST was observed to be the minimum at SRT of 10.7 d both in MT-AD and RT-AD.