Chemical API production wastewater treatment difficulties?

 　Among these sub-industries, the largest pollution load is the production of chemical APIs, accounting for about 80% of the industry. Chemical API production produces wastewater, exhaust gas, dregs and other pollution problems need urgent attention.

It is understood that the sources of wastewater from chemical APIs include workshop process water, equipment and pipeline clearing and cleaning wastewater, wastewater generated by solid-liquid separation of drug extraction or refining processes, workshop staff cleaning water and plant living wastewater. Meanwhile, the sources of wastewater also include boiler discharge water, external cooling water and so on. In the enterprise's wastewater, wastewater is dissolved in the composition of all the materials used in the production process, including drug intermediates, unknowns and targets (residual products); also includes wastewater in the mix of aerobic and anoxic conditions of the new products.

So, the question arises, what are the treatment difficulties?

On the one hand, wastewater pollution and products, the use of raw materials and auxiliary materials, production processes, etc. are closely related to the enterprise's new production conditions generated by the pollution load and the original treatment facilities of the biological system, the operational parameters of the conflict, often resulting in a period of time does not meet the standards.

On the other hand, China Chemical & Pharmaceutical Industry Association environmental engineer Zhang Daoxin said, chemical API production is generally a large input-output ratio, low product output rate, the amount of pollutants generated; the type, characteristics and quantity of pollutants generated with the production of varieties of raw materials and auxiliary materials required, process, process conditions, outputs and management level is directly related to the production of raw materials and auxiliary materials, process, process conditions, outputs and management level. It is characterized by a variety of pollutants, a small number of individual categories (economic utilization is not high), biological toxicity, high concentration, discharge is basically irregular, discontinuous and unbalanced, difficult to biochemical treatment. "High-concentration wastewater treatment has always been a problem that has plagued the development of chemical API production."

Treatment costs and engineering details are key

From a technical point of view, chemical API production wastewater can be done continuously and stably to meet the discharge standards, the key is to see how much the enterprise can afford the treatment of investment and operating costs, the project undertaking unit should understand the enterprise wastewater pollution treatment has ever appeared on the delivery of the project unfavorable conditions

It is understood that China's bulk API production profits are meager, and the cost of pollution control accounted for 4% to 30% of the production costs. This situation often forces enterprises to minimize treatment investment and operating costs.

From a technical point of view, chemical API production wastewater can be achieved consistently and steadily meet the discharge standards, the key is to see how much the enterprise can afford the governance investment and operating costs.

  
Unlike ordinary products, pharmaceuticals are special products related to human health, in the production process has extremely strict requirements, in order to solve the pollution problems in the production of pharmaceuticals as far as possible, from raw materials, production processes, equipment, software to personnel operations should be in line with the norms and regulations.