摘要
水电工程砂石加工系统中的废水沉渣快速脱水是影响废水处理的关键工艺。在对比不同沉渣脱水工艺优势和分析影响其处理效率的因素基础上,介绍了一种适宜砂石生产废水沉渣脱水的新工艺——隔膜压滤,其关键是在常规压滤设备的滤板两侧加装两块弹性膜。分析表明,采用隔膜压滤,可明显缩短脱水工作周期,并显著降低泥饼含水率,提高泥饼力学强度,达到泥渣减容减量、方便转运的目标。可为工程项目废水沉渣脱水处理的研究提供参考。
Fast dewatering of wastewater sediment is the key process of wastewater treatment in sand and gravel processing sys- tem. On the basis of the comparison of the advantages of different dewatering technologies and the analysis on the factors affecting their efficiency, a new dewatering process named diaphragm filter press was introduced, which adds two pieces of elastic mem- branes on both sides of the conventional filter press equipment. The practical results indicate that this new procedure of dia- phragm filter press can shorten the operational cycle time, reduce mud cake moisture content and enhance mud cake strength, which can be referred in the study on dewatering process of wastewater sediment from sand and gravel processing system in hydro- power projects.
出处
《人民长江》
北大核心
2015年第21期18-22,共5页
Yangtze River
基金
长江勘测规划设计研究院科研项目(CX2013Z33)
关键词
砂石加工
废水处理
沉渣
脱水工艺
sand and gravel processing
waste water treatment
sediment
dewatering technique
