Nowadays, with the continuous improvement of people's life quality, many people begin to pursue a higher quality of life. Health products and various health drugs have appeared in our life. Pharmaceutical companies also began to flourish all over the world, causing a lot of environmental pollution, sewage is one of them. Today, polyacrylamide manufacturers will answer whether polyacrylamide can treat pharmaceutical wastewater.

Composition and characteristics of pharmaceutical wastewater

Pharmaceutical industry wastewater mainly includes antibiotic production wastewater, synthetic drug production wastewater, Chinese patent medicine production wastewater and various preparations in the production process of washing water and washing wastewater. It is characterized by complex composition, high organic matter content, high toxicity, deep color, high salt content, especially poor biodegradability and intermittent discharge.

Treatment of pharmaceutical wastewater by coagulation

Coagulation is a physicochemical method commonly used in pharmaceutical wastewater treatment. Coagulation is used to separate particles that have lost their charge and come into contact with each other by stirring, flocculating to form flocs for easy precipitation or filtration. Coagulation treatment can not only effectively reduce the concentration of pollutants, but also improve the biodegradability of wastewater. Polyacrylamide, polyferric sulfate, polyaluminum chloride, polyaluminum sulfate and so on are widely used in the treatment of wastewater in antibiotic pharmaceutical industry.

Selection of polyacrylamide in pharmaceutical wastewater treatment

In the process of pharmaceutical wastewater treatment, flocculant is generally used. If it is biochemical sludge treatment, cationic polyacrylamide products with higher ionic degree are generally selected. When the concentration of organic matter is very high, the effect of choosing the ionic degree of 50%≤60% is better, and the previous stage is electrolytic treatment or air flotation treatment. According to sewage quality, the key technical index is to judge the choice of flocculant by PH value. When the general PH is less than 7, non-ionic polyacrylamide is often used as coagulant aid or sludge thickening precipitator. If PH is greater than 7, anionic polyacrylamide is more commonly used.

In conclusion, polyacrylamide can be used in the treatment of pharmaceutical wastewater. However, due to the complexity of many components of a polyacrylamide model, it is recommended that you experiment to determine the model and usage of polyacrylamide before selecting and purchasing it to avoid unnecessary hassles in use.