火力电厂循环冷却排水回用处理工艺研究  

Study on the treatment of discharged circulating cooling water for reuse in heat power plants

作　　者：李福勤[1] 唐跃刚[1] 何绪文[1] 王志强[1] 王建[1] 

机构地区：[1]中国矿业大学

出　　处：《工业水处理》2005年第11期37-39,共3页Industrial Water Treatment

基　　金：国家自然科学基金资助项目(50448017)

摘　　要：结合火力电厂循环冷却排水回用处理现有工艺,对混凝—超滤(UF)—反渗透(RO)工艺和澄清—过滤—UF—RO工艺进行了试验研究。结果表明,超滤作为RO的预处理具有较大的优越性,混凝—UF—RO工艺虽然可简化处理流程,但膜通量较小,总体投资并未减少,且运行可靠性较差;澄清—过滤—UF—RO工艺出水水质优良(UF出水SDI值小于2,RO除盐率达到99%),UF膜通量可达到3m3/(m2.d),系统运行可靠,运行维护费用低,是较合理的工艺。Compared with the current process of treating discharged circulating cooling water for reuse in heat power plants, a study on the processes, such as coagulation- uhrafiltration （UF） -reverse osmosis （RO） and clarification filtration -UF-RO is carried out. The results show that, Although the treatment process can be simplified by using UF as the pretreatment of RO, has greater superoity. coagulation- UF- RO, the membrane flux is lower, and the general investment has not been lessened, but the operational reliability is low. The process of clarification - filtration -UF-RO has perfect effluent water quality （the effluent SDI value of UF is less than 2, the desalination rate of RO is up to 99%）. UF membrane flux is up to 3 m^3/（m^2· d）. The system runs reliably, and the maintenance cost is low. Therefore, it is a reasonable process.

关 键 词：火力电厂 循环冷却水 超滤 反渗透 

分 类 号：TQ085[化学工程]