连续微滤技术在循环冷却排污水回用中的应用  

Application of continuous microfiltration technology in the reuse of effluent of recirculating cooling water in power plant

作　　者：陈颖敏[1] 莫莉萍[1] 王海茹[2] 苏金坡[1] 杨广华[2] 

机构地区：[1]华北电力大学环境科学与工程学院,河北保定071003 [2]北京国电富通科技发展有限责任公司,北京100055

出　　处：《电力技术（北京）》2004年第12期56-59,共4页

摘　　要：在循环冷却排污水回用系统中,采用连续微滤(CMF)作为反渗透的预处理,经现场中试试验检验连续微滤的可行性,并取得其运行的参数和条件及变化规律。连续微滤产水稳定,水质符合反渗透系统的进水水质指标。建议使用该工艺时应根据循环水水质筛选理想混凝剂,采用石灰-纯碱工艺去除循环水中Ca2+、Mg2+、Ba2+、Sr2+、活性硅等易在反渗透膜上结垢成分,有助于提高反渗透的回收率。The continuous microfiltration (CMF) is applied as a pretreatment process of the reverse osmosis which serves as predesalination in the recirculating cooling water effluent reuse system. The feasibility study of CMF was conducted in the pilot-scale experiment on the spot, with the parameters, conditions and variation law of operation obtained. The result showed that the water output of CMF was stable and the quality of water met the standard of inlet water of reverse osmosis system. It is suggested that according to the water quality in different thermal power plant. contrast experiment should be conducted to choose the desirable coagulant before CMF is put into operation. Lime and sodium carbonate are suggested to be used to remove the contamination, such as Ca2+?Mg2+?Ba2+?Sr2+ and active silicon,easily leading to scaling on the reverse osmosis membrane which can help boost the water recovery.

关 键 词：水回用 连续微滤 排污水 循环冷却 反渗透系统 混凝剂 纯碱工艺 循环水 去除 反渗透膜 

分 类 号：X703[环境科学与工程—环境工程]