WANG Sheng-dong.A Case of Sludge Deep Dewatering in Laogang Landfill Leachate Emergency Treatment Project[J].China Water & Wastewater,2021,37(24):107-112.
老港垃圾滲濾液應(yīng)急項(xiàng)目污泥深度脫水工程實(shí)例
- Title:
- A Case of Sludge Deep Dewatering in Laogang Landfill Leachate Emergency Treatment Project
- 關(guān)鍵詞:
- 垃圾滲濾液; 膜技術(shù); 應(yīng)急處理; 深度脫水; 板框壓濾
- Keywords:
- landfill leachate; membrane technology; emergency treatment; deep dewatering; plate and frame filter press
- 摘要:
- 垃圾滲濾液處理多采用膜工藝,采用膜法處理滲濾液，且將剩余污泥含水率降至60%以下，是滲濾液處理的難點(diǎn)之一。老港應(yīng)急滲濾液處理工程通過(guò)生產(chǎn)性的實(shí)證，試驗(yàn)了多種藥劑工況，得出了板框壓濾結(jié)合有機(jī)混凝劑的方法，可實(shí)現(xiàn)剩余污泥含水率降至60%以下,其中采用聚胺法運(yùn)行費(fèi)用最低，約為600~750元/t絕干泥。該方法解決了膜法處理滲濾液將剩余污泥含水率降至60%以下的難題，可在類似工程中推廣使用。
Abstract:- Membrane technology is widely used in landfill leachate treatment, however, it is difficult to reduce the moisture content of residual sludge to below 60%. It is realized by the method of plate and frame filter press combined with organic coagulant through productive demonstration at Laogang landfill leachate emergency treatment plant, after testing a variety of chemical conditions. Among them, the polyamine method has the lowest operation cost of about 600-750 yuan/tDS. This method solves the problem of reducing the moisture content of residual sludge to below 60% in membrane treatment of leachate and can be widely used in similar projects.
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