Treatment of Electronic Wastewater

1. Characteristics:

There are various types, complexed forms are difficult to treat, the treatment process is complicated, and the concentration of organic substances is high.

2. Treatment Difficulties:

Copper, COD (Chemical Oxygen Demand), ammonia nitrogen, pH value, cyanide, nickel, etc.

3. Treatment Process:

Classified pretreatment + multi-effect combined physicochemical treatment + multi-stage biochemical treatment.

4. Solutions:

After classified pretreatment, after improving the biodegradability of the wastewater through the physicochemical process, the "hydrolysis acidification + contact oxidation" process is adopted to further remove pollutants so that the wastewater can be discharged up to the standards.

5. Discharge Standards:

The first-class discharge standard for the second period specified in the Integrated Wastewater Discharge Standard (GB8978-1996).

The first-class discharge standard for the second period specified in the Discharge Limits of Water Pollutants in Guangdong Province (DB44/26-2001).