In this study, combinations of applied pressure, pressing time and polymer dose were examined in an air pressure plate apparatus to explore their integrated influence on the dewatering of an alum in sludge. Results of the investigation demonstrated that dewatering can be enhanced by increases in pressure and tie. However, a point is reached at which continued increases in pressure and time offer little benefit. The data also confirmed that polymer affects the rate of water releases rather than the extent of dewatering.
展开▼
