Application study of electrochemical method to treat circulating cooling water based on orthogonal experiments
In order to solve the problem of scale formation of circulating cooling water,a combination of laboratory test and pilot study was adopted.The circulating cooling water in the coking plant of Guangxi Liuzhou Iron and Steel Group Co.Ltd.was taken as the research object.Through orthogonal experimental design,the interactive influence of four factors,including cathode plate material,plate spacing,voltage and reaction time was explored,and the orthogonal experimental table was constructed.The experimental results showed that the selection of cathode materials and the adjustment of experimental parameters had obvious effects on the electrochemical removal of Ca2+ and Cl-from the circulating cooling water.The results of range analysis showed that the cathode material had the most significant effect on the descaling effect,and the voltage had the most significant effect on the descaling effect.Through the pilot study,the experimental results were verified and remarkable economic benefits were obtained.
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