[1]陈功.通沟污泥处理的提质增效改进工艺设计[J].中国给水排水,2021,37(16):78-82.
　CHEN Gong.Process Design to Improve Quality and Efficiency of Sewer Sludge Treatment[J].China Water & Wastewater,2021,37(16):78-82.
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通沟污泥处理的提质增效改进工艺设计

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第16期 页码: 78-82 栏目: 出版日期: 2021-08-17
Title:
Process Design to Improve Quality and Efficiency of Sewer Sludge Treatment
作者:
陈功
(同济大学建筑设计研究院<集团>有限公司，上海200092)
Author(s):
CHEN Gong
(Tongji Architectural Design Co. Ltd.， Shanghai 200092, China)
关键词:
通沟污泥; 砂水分离; 工艺改进
Keywords:
sewer sludge; sand-water separation; process improvement
摘要:
针对常规通沟污泥处理工艺高负荷条件下洗砂效率下降、粒径＜0.2 mm特细砂分离效率较低以及冲洗水消耗量高的问题，武汉市某通沟污泥处理工程采用两级旋流+砂水分离的改进工艺，将通沟污泥分离成粒径10 cm以上的大件物质、6 mm~10 cm的粗大物质、0.075~6 mm的无机砂、2~6 mm的有机渣等，其中0.075~6 mm的无机砂分离效率81.2%，0.075~0.1 mm特细砂分离效率73.4%，回用水利用率达73.1%，为区域性大型通沟污泥处理站的工程设计提供参考，有助于排水系统的提质增效。
Abstract:
Conventional sewer sludge treatment process has the problems of low sand washing efficiency under high load conditions, lower separation efficiency of ultra-fine sand with a particle size of less than 0.2 mm and high washing water consumption. An improved process of two-stage cyclone and sand-water separation was employed in a sewer sludge treatment project in Wuhan, in which the sewer sludge was separated into large substances with particle size over 10 cm, coarse substances with particle size between 6 mm-10 cm, inorganic sand with particle size between 0.075-6 mm and organic residue with particle size between 2-6 mm, among which the separation efficiency of 0.075-6 mm inorganic sand was 81.2%, the separation efficiency of 0.075-0.1 mm ultrafine sand was 73.4%, and the reuse water utilization rate reached 73.1%. The result can provide a reference for engineering design of regional large-scale sewer sludge treatment station, and help to improve the quality and efficiency of the drainage system.

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更新日期/Last Update: 2021-08-17