1. Flocculant: It can effectively separate stubborn materials from liquid, and is often used in primary sedimentation tank, secondary sedimentation tank, tertiary treatment or advanced treatment and other processes, mainly using polyacrylamide.

2. Coagulation aid: The auxiliary flocculant plays a role to enhance the coagulation effect.

3. Conditioner: adjust the sludge remaining before dehydration.

4. Demulsifier: mainly used for pretreatment of oily wastewater.

5. Defoamer: It is mainly used to eliminate a large number of air bubbles generated during aeration or stirring.

6. PH regulator: used to regulate acid-base sewage.

7. Redox agent: mainly used to treat wastewater containing oxidative or reducing substances.

8. Disinfectant: used for wastewater discharge or reuse before disinfection.

9. Microbial flocculant: Tap water and reclaimed water are reused and purified, safe and non-toxic.