For China's municipal industrial wastewater treatment technology, although China's municipal wastewater treatment experience is insufficient, the history of development is not long, but also in many aspects of the great achievements. Whether in the theoretical system of sewage treatment technology, or in the practice of sewage treatment technology, there has been great progress. Liyuan environmental protection to take you to understand the common chemical plant wastewater treatment technology.

1、Membrane separation technology

Membrane separation technology for chemical plant wastewater treatment process has achieved ideal results. But there are major defects: membrane contamination. Treatment of material particles, colloids, solute macromolecules due to physical and chemical effects or mechanical effects on the membrane surface of the adsorption, or deposition within the pore, resulting in smaller or clogging the membrane pore, so that through the flow and separation characteristics of the membrane to produce irreversible changes, resulting in a decline in the quality and quantity of treated water. Therefore, at the time of using the technology of chemical plant wastewater treatment in the process of membrane separation technology, we tend to take corresponding measures for membrane pollution prevention and control.

 (1) The use of filtrate pretreatment.

 (2) Actively improve the operating environment to avoid membrane pollution.

 (3) Regular cleaning of membrane modules to avoid membrane contamination.

It is because of this technology to take the above steps, energy consumption is relatively high.

 

2、 primary treatment technology

Chemical plant wastewater treatment of the main treatment technology, also known as the first level of enhanced treatment technology. Its main features are mainly manifested in the following aspects: investment and consumption costs, low consumption, reduce the pollution load plays a big role. Under this advantage, it is quickly used in the field of chemical plant wastewater treatment, and has achieved more satisfactory results, such a way is currently used in many small and medium-sized cities. Strictly speaking, the enhanced primary treatment technology mainly includes the primary treatment process and the biological enhanced primary treatment process. However, the main primary treatment technology also has shortcomings: its processing difficulty and cost is relatively large, it is easy to appear in the operation of the safety issues, is the cause of secondary pollution inducing factors.

 

3、 biological treatment technology

Strictly speaking, the current biological treatment technology can be divided into technology and biofilm treatment process of anaerobic treatment. Specifically, anaerobic biological treatment technology, reactor size, low energy consumption, belong to the type of simple and easy to operate, often used in a chemical plant sewage treatment work. But there are some problems, reduce the concentration of sewage chemical plant to reduce, to be carried out to ensure that the role of the full play; Second, biofilm treatment technology, can be realized on the discharge of organic matter and nitrogen, showing good prospects for application.