Honigman Miller Schwartz and Cohn LLP
Method for retreating dewatered sludge
The present invention discloses a method of retreating a viscous semi-solid dewatered sludge having a water content of 70-85%, which is characterized by comprising the steps of: (1) adding a desiccant into said dewatered sludge, and stirring the resulting mixture to produce a mixed sludge having a water content of 50-60%; and (2) drying the mixed sludge to produce a dried granular sludge, which has a water content of 45% or less. The method of retreating the sludge of the present invention can decrease the treatment energy consumption, have a simple dry waste gas treatment, greatly reduce the cost for treating the sludge, accomplish the clean production and the sludge's innocuity, stabilization, minimization, and recycle.
Guangzhou New Extend Rising Environmental Protection Technologies Machinery Equipment Co., Ltd.
C C Y C Y C C C C
C02F C02F Y02W C02F Y02A C05F C05D C02F C02F
inventional inventional additional inventional additional inventional inventional inventional inventional
Zhimin Jiayu Jiacong Huansheng
Sun Chen Wu Zhong