INVOLVING OF DEWATERING CAPACITY OF AEROBIC AND ANAEROBIC STABILIZED SLUDGES by

Sludge is one of the major problem in environmental engineering because its large water content. This study investigates the dewatering capacity of aerobic and anaerobic of stabilized sludges with chemical conditioning and co-conditioning methods by using different types of polymers. Dry solids content (DS, %), water content (WC,%), organic matter content (OM,%), pH, electrical conductivity (EC, µmhos/cm), capillary suction time (CST), specific resistance to filtration (SRF), and centrifugal settleability index parameters were analyzed for raw and conditioned sludge samples. Polymers have not significant bridging effect on stabilized sludge because its stabile structure. This research shows that stabilized sludge conditioning is not cost effective because of high polyelectrolyte need