Conquering Extreme Challenges! Electrochemical Technology Achieves Zero COD in Ultra-High Concentration Refractory Wastewater, Empowering Green Development of New Materials Enterprises in Qingdao

Recently, the customized electrochemical wastewater treatment system provided by our company for a leading advanced materials technology enterprise in Qingdao has achieved resounding success. Tackling an industry-defining technical challenge—treating high-molecular synthetic wastewater characterized by extremely complex compositions, unidentified pollutants, large water volume fluctuations, and COD concentrations ranging from 27,000 to 310,000 mg/L—the system has delivered groundbreaking results: it directly degrades the influent COD from 27,560 mg/L down to 0 mg/L, attaining a 100% COD removal rate. The effluent quality stably far exceeds the client’s required standard of ≤ 120 mg/L and has been successfully integrated into the plant’s existing wastewater treatment system for subsequent processing.

The client’s business covers cutting-edge fields such as polymer materials, elastomers, modified plastics, and composite materials. Its production wastewater features complex components and drastic fluctuations, making it an extreme challenge that is almost "untreatable" by traditional biochemical and physicochemical methods. Following in-depth analysis, our company tailored a treatment solution centered on enhanced electrochemical advanced oxidation technology. By generating potent and non-selective reactive species such as hydroxyl radicals, this technology can completely break down the unknown, high-concentration complex organic molecular chains in wastewater and efficiently mineralize them, fundamentally resolving the treatment difficulties caused by undefined pollutant compositions.

The success of this project is of milestone significance:

1. Verifying Ultimate Treatment Capacity

It has successfully treated extreme wastewater with COD concentrations approaching 310,000 mg/L, demonstrating the technology’s outstanding stability and powerful degradation capacity in coping with massive concentration fluctuations.

2. Achieving the "Zero COD" Breakthrough

Reducing effluent COD to 0 mg/L is not only a numerical triumph, but also proves that the theoretical feasibility of electrochemical technology for the complete mineralization of complex organics (total conversion into carbon dioxide and water) has been perfectly realized in practical engineering applications.

3. Providing an Innovative Solution

It offers an efficient, reliable, and innovative technical pathway for treating process wastewater with complex compositions, high concentrations, and poor biodegradability in industries such as advanced materials and specialty chemicals worldwide—without the need for precise pre-analysis of all pollution factors.

The successful operation of this project has not only helped the client resolve severe environmental discharge challenges and ensure production continuity, but also cleared the obstacles for the sustainable development of this high-tech enterprise. It once again powerfully proves that our company’s electrochemical water treatment technology is one of the ultimate tools for addressing the world’s most complex and challenging industrial wastewater treatment tasks.

We are committed to promoting this cutting-edge technology to more industrial sectors facing similar predicaments around the globe, helping clients achieve a win-win balance between environmental benefits and economic returns.