Introduction: The SF type one-step purifier is mainly used to harness the mixed waste water produced in the course of production such as storage battey , galvanization, mechanism and so on. This equipent can effectively get rid of all kinds of harmful substance including heavy metal ion,acid, alk, cyanide, mud and sand, suspended matter etc., and make further innocent treatment for those deposit, In order to avoid the secondary pollution,the water after treatment should reach the GBJ4-73 National Discharge Standard and be allowed to use once more.

Technology Processes: Firstly put the alk solution into waste water which neutralize the acid among then, and make the PH value between 7 and 8; menwhile make the chemical reaction with plumbous ion and generate the lead hydroxide not to be dissolved into water, then add the coagulan aidt and filtering the light-weight filtering materials wll be simultaneously carried out in the one-step purifier, which can eliminate the all kinds of hydroxides. In the end, the alumina powder and suspen-ded matter will reach the discharging standard, and the water quality is clear and good, so the water can be sent back to plant for usage again.