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Chemicals involved in industrial wastewater treatment

Jan 26, 2021

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 and tertiary treatment or advanced treatment.

⑵ Coagulation aids: auxiliary flocculants play a role to enhance 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 coagulants.

⑷ Demulsifier: sometimes called destabilizer, 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 mixing.

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 before the discharge or reuse of wastewater after treatment.

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