电吸附技术在火电厂循环冷却水处理中的应用可行性研究

Feasibility Study on Application of Electroadsorption Technique in Circulating Cooling Water Treatment in Thermal Power Plant

火电厂循环水排污水含盐量高、水量大、回用比较困难,对电吸附技术在发电厂循环水排污水回用方面进行可行性研究。试验结果表明电吸附技术有稳定的除盐效果,可有效降低和去除水中65%以上的硬度与氯离子,同时对COD亦有较好的去除效果,除盐效率高,合计1 t水处理成本约0.5元。试验设备运行稳定,处理效果好且连续可调,设备耐受性好,可以用于循环水初级脱盐处理。

The waste water of circulating water system is hard to reuse because of its high salinity and large quantity. This paper conducts feasibility study on the application of electroadsorption technique in circulating cooling water treatment in power plants. The test result shows that this technique is stable in desalination and can reduce salinity and chloride ion in water by 65% or more; besides, the technique can better remove COD. The technique is characterized by its high desalination rate, meaning treatment of 1 ton of water costs0.5Yuan. The test equipment operates in stability and its treatment efficiency is favorable, constant and adjustable; it is tolerant and can be used for preliminary desalination of circulating water in power plant.