In order to prevent the deterioration of this phenomenon, the water treatment industry has developed a batch of large-scale water treatment equipment, which is applied to the treatment of people's production and domestic sewage. Many enterprises discharge wastewater containing a large amount of difficult to degrade substances, which cannot be effectively removed by a single water treatment equipment. Therefore, it is necessary to add sewage treatment agents reasonably based on the particularity of sewage quality, so that the treated sewage meets the national discharge standards. Common chemicals

1. Flocculant: It can effectively separate stubborn substances in liquids and is commonly used in primary sedimentation tanks, secondary sedimentation tanks, tertiary treatment or deep treatment processes, mainly using polyacrylamide.

2. Coagulant aid: Coagulant aid plays a coagulation aid role.

3 conditioning agents: Condition the remaining sludge before dehydration.

4 demulsifiers: mainly used for the pretreatment of oily wastewater.

5 defoamers: mainly used to eliminate a large number of bubbles generated during aeration or mixing processes.

6PH regulator: used to regulate the acidity and alkalinity of wastewater.

7. Oxidizing and reducing agents: mainly used for treating wastewater containing oxidizing or reducing substances.

8 Disinfectants: Used for disinfection treatment of wastewater before discharge or reuse.

9 Microbial flocculants: Reuse and purify tap water and reclaimed water, safe and non-toxic.

With the continuous improvement of user demand, the research and development of water treatment agents is moving towards higher levels and more fields. The development direction of future water treatment chemicals is:

1. The specificity of water treatment reagents should be improved, allowing users to choose according to industry classification to avoid poor results caused by incorrect selection.

2. Develop multifunctional water treatment chemicals and expand the scope of chemical use.

With the development of green chemicals, the development of green chemicals will inevitably drive the improvement of environmental protection standards.

The sewage treatment equipment operates stably with the assistance of sewage treatment agents, making the sewage treatment effect better.