SYSTEM AND METHOD FOR PURIFYING WASTE WATER USING POWDERED ACTIVATED CARBON

摘要

A system for purifying waste water using powdered activated carbon, comprising a carbon-adding device, a mixing and treating device, a carbon-water separation device, a backwashing device, a control system, and a power module. Also disclosed is a method for purifying waste water using powdered activated carbon. In the method, powdered activated carbon and waste water are fully mixed and delivered using a feeding pump (306) into the carbon-water separation device for carbon-water separation. According to the difference between the water intake pressure and the water discharge pressure of the carbon-water separation device detected by a pressure controller (404), the backwashing device is automatically activated to backwash a hollow, microporous filter pipe (302). The backwashing device is turned off, and a solenoid valve (304) at the carbon slurry outlet is turned on for carbon slurry removal, dehydration, drying, and re-activation. The system and method use simple, easily operable equipment at a low operation cost. Separated powdered activated carbon is collected and recycled. Equipment has long continuous operation capacity, and backwashing is efficient.