Nanofiltration and ion-exchange alkalinization for water conservation and zerodischarge in circulating cooling water system

Pipe corrosion, scaling and microbial growth in the circulating cooling water system cause many problems which threat the stable and safe operation of power plants. In order to solve these problems in circulating cooling water system, this paper puts forward an innovative method, nanofiltration and ion-exchange alkalinization technology, for water conservation and zerodischarge and describes the principle and practice of this technology to ensure that the concentration factor of circulating cooling water can reach up to 10.