5Chen Y, Yang H,Gu G. Effect of acid and surfaelanl trealnlment on activated sludge dewatering and settling [J]. Water Researuh, 2001 ,35(11 ) :2615-2620.
6Clayton S A,Sc:holes O N, l loadley A F A,etal. dewal~ring ol bio- materials by met:hanit~al thermal expression[J].Drying Technology,2006,24(7 ) :819-834.
7Clayton S A,Wheeler R A, Hoadley A F A. Pore destmellon rcsul ling from mechanical thermal expression [J].Drying Technology, 2007,25 (4) :533 -546.
8Chen Y, Yang H, Gu G. Effect of acid and surfactant treatment on activated sludge dewatering and settling [ J ]. Water Research, 2001,35( 11 ) :2615-2620.
