PICKLING AND PHOSPHATING WASTEWATER TREATMENT AND RESOURCE RECYCLING
YE Xi-shou;CHAI Shao-long;FU Xiao-bin;LOU Wei-feng;ZHEN Xiao-qing;Hangzhou institute for environment protection;
In the process of mechanical production, pickling and phosphating process, as a kind of metal protection technology is relatively common and enhances corrosion resistance and oxidation resistance of the utility, also can promote the metal coating, thus it has a very important value. But after pickling and phosphating process, large amounts of waste water containing acid, alkali, heavy metal ions will be produced and easy to cause pollution to the environment. After debugging, the effluent meet local nanotubes requirements, the system is running stable, easy operation.