What are the commonly used chemicals in industrial wastewater treatment

We often resort to the help of some chemicals in industrial wastewater treatment. So, what are the commonly used chemicals in industrial wastewater treatment? Below we will introduce several commonly used chemicals in industrial wastewater treatment.

⑴ Flocculant: Sometimes called coagulant, it can be used as a means to strengthen solid-liquid separation, used in the process links of primary sedimentation tank, secondary sedimentation tank, flotation tank, tertiary treatment or advanced treatment.

⑵ Coagulation aids: auxiliary flocculants play a role to strengthen the coagulation effect.

⑶ Conditioning agent: also known as dehydrating agent, used to condition the remaining sludge before dehydration. Its varieties include the above-mentioned partial flocculants and coagulant aids.

⑷ Demulsifier: Sometimes called destabilizer, it is mainly used for pre-treatment of oily wastewater containing emulsified oil before air floatation. Its varieties include the above-mentioned partial flocculants and coagulants.

⑸Defoamer: Mainly used to eliminate a large amount of foam during aeration or stirring.

⑹pH adjuster: used to adjust the pH value of acid wastewater and alkaline wastewater to neutral.

⑺ Redox agent: used for the treatment of industrial wastewater containing oxidizing or reducing substances.

⑻ Disinfectant: used for the disinfection treatment of wastewater after discharge or before reuse.

Although there are many types of medicines mentioned above, a medicine used in different occasions will have different functions and will have different names. For example, Cl2 is called a coagulant when it is used to enhance the coagulation treatment effect of sewage, it is called an oxidant when it is used to oxidize cyanide or organic matter in wastewater, and it is naturally called a disinfectant when used for disinfection.