Wastewater Treatment in Industrial Parks

1. Characteristics:

High content of heavy metals, high concentration of acid and alkali, high toxicity, high chroma, and high COD (Chemical Oxygen Demand) concentration.

2. Treatment Difficulties:

High concentration of acid and alkali, high toxicity, high chroma, and high COD concentration.

3. Treatment Process:

Combination of anaerobic and aerobic processes.

4. Solutions:

Firstly, apply physicochemical treatment to remove inorganic substances, organic substances that are difficult to biodegrade or colloidal substances in the water. Then, apply the combined treatment process of anaerobic and aerobic processes for biological treatment to efficiently remove nitrogen and phosphorus. Eventually, achieve the treatment goals of reducing the content of heavy metals, maintaining the acid-base balance, reducing toxicity, reducing chroma and COD concentration, and promote the discharge that meets 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).

Case Recommendations:

Baiyun **** Industrial Park Sewage Treatment Project

Jianyang ** Fine Chemical Industry Park