In the activities of the production process and waste processing, it is unavoidable to generate liquid waste. In the condition that the waste that does not meet the requirements is disposed of to the environmental agency, a sanitary process is needed to produce raw water.

The process of clumping and deposition of fine particles contained in water using electrical energy. Electrocoagulation is a combination of electrochemical, flocculation, and coagulation processes.

Coagulation is a water treatment process using a rapid stirring system so that certain coagulants (chemicals) can react uniformly to all parts of the wastewater in a tub so that it can form flocs or granules that are larger and can be deposited. Meanwhile, flocculation is a method to increase the size of the flocs from coagulation by slow stirring. Electrocoagulation is a more advanced technology compared to coagulation methods that still use conventional coagulants