Successful Completion of Pharmaceutical Wastewater Treatment Project Acceptance

Recently, our company successfully passed the on-site acceptance of a pharmaceutical wastewater treatment project by the client and the local environmental protection department. This wastewater contains a large amount of sulfonic acid amphoteric organic compounds, has a high total nitrogen content, and a salt content close to 20%, making the treatment process more challenging. Adhering to the concept of “wastewater treatment and resource recovery,” our company carefully analyzed the physicochemical properties of this wastewater. Through repeated optimization in small-scale tests and on-site pilot verification, we determined the optimal solution. During industrial-scale implementation, we used our independently developed special adsorption resin and supporting processes, achieving efficient treatment of the wastewater and resource recovery of amphoteric organic compounds, with an annual resource recovery value exceeding 10 million yuan.

Project Site

Local TV station interview

Raw water (left) and treated water (right)

Due to the toxicity of sulfonic acid amphoteric organic compounds to microorganisms and the high salt content, if not effectively treated, their discharge into the environment would cause severe pollution, harm human health, and affect the sustainable development of the enterprise. Additionally, these amphoteric organic compounds are important pharmaceutical intermediates, and discharging them without recovery and treatment results in resource loss and waste. Currently, the main treatment methods for this type of wastewater include biological methods and physicochemical methods (oxidation, evaporation crystallization, and resin adsorption). Among these, the special resin adsorption method has significant advantages in treating wastewater with high concentration, complex composition, deep color, high toxicity, and difficulty in degradation.