Moisture distribution and removal efficiency of waste activated sludges

A classification scheme based on the bound water content measured via filtration (W-FII), expression (W-EXP) and drying test (W-DRY) was utilised for constructing the moisture distribution in excess activated sludges. The differences W-FIL-W-DRY, W-DRY-W-EXP and W-EXP Were respectively interpreted as the interstitial water, surface water and internal water. The distribution and removal efficiency of moisture in excess activated sludges taken from a large wastewater treatment plant were found. The relative moisture removal efficiency for a belt;filter press was near constant. Copyright (C) 1996 IAWQ.