发明授权
- 专利标题： Method for retreating dewatered sludge
- 专利标题（中）： 回收脱水污泥的方法
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申请号： US14240275申请日： 2012-08-20
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公开(公告)号： US09212075B2公开(公告)日： 2015-12-15
- 发明人: Huansheng Zhong , Zhimin Sun , Jiacong Wu , Jiayu Chen
- 申请人： Huansheng Zhong , Zhimin Sun , Jiacong Wu , Jiayu Chen
- 申请人地址： CN Guangzhou
- 专利权人： Guangzhou New Extend Rising Environmental Protection Technologies Machinery Equipment Co., Ltd.
- 当前专利权人： Guangzhou New Extend Rising Environmental Protection Technologies Machinery Equipment Co., Ltd.
- 当前专利权人地址： CN Guangzhou
- 代理机构： Honigman Miller Schwartz and Cohn LLP
- 优先权： CN201110241296 20110822
- 国际申请： PCT/CN2012/001116 WO 20120820
- 国际公布： WO2013/026263 WO 20130228
- 主分类号： C02F11/14
- IPC分类号： C02F11/14 ; C02F11/12 ; C02F11/18 ; C05D3/02 ; C05F7/00
摘要：
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.
公开/授权文献
- US20140352377A1 METHOD FOR RETREATING DEWATERED SLUDGE 公开/授权日：2014-12-04
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