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Mechanical mixing and compression in the presence additives in the water content of sludge cake 40% 发明授权

2023-09-19 3660 886K 0

专利信息

申请日期 2025-07-11 申请号 KR1020120098540
公开(公告)号 KR101237828B1 公开(公告)日 2013-02-21
公开国别 KR 申请人省市代码 全国
申请人 HANSOL ENGINEERING CONSTRUCTION CO LTD
简介 PURPOSE : A method for re-dehydrating a dehydrated sludge cake is provided to largely reduce water content and to save drying cost.CONSTITUTION : A method for re-dehydrating a dehydrated sludge cake comprises : a step of adding cellulose-based excipient to primarily hydrated sewage and waste water sludge cake containing 80+/- 3% of moisture and adjusting the moisture content of the sludge cake to 60+/-3%; a step of repetitively pressing the sludge cake and lowering the moisture content of the sludge cake to 40+/-3%; and a step of crushing and pulverizing the sludge cake and selecting the excipient only. The intervals between particles(2) containing inner water(1) are getting narrow through the repetitive pressing step.COPYRIGHT KIPO 2013


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