ELECTROCOAGULATION

Electrocoagulation process can be used in heavy metal removal, suspended and colloidal solids removal, oil emulsion removal, oil and grease removal, complex organics removal and microorganisms removal.

Aluminum and iron electrodes are generally used in the electrocoagulation process. During the process operation, these electrodes react in the wastewater and metal hydroxide compounds are formed. These metal hydroxides adsorb different pollution parameters in the wastewater environment and allow it to precipitate. In this way, pollutants are removed from the wastewater.
Although the electrocoagulation system is similar to conventional coagulation flocculation applications, it has many advantages compared to these systems.

a) Electrocoagulation is more effective than conventional coagulation in stabilizing and removing small colloidal particles.
b) Less and more stable sludge is formed in electrocoagulation.
c) Electrocoagulation equipment is easy to use and operate.
d) There is no need to add chemicals in electrocoagulation. Therefore, it is easier to operate and maintain.
e) The sludge formed exhibits a more dewaterable structure.
f) Initial investment cost is quite low compared to alternative technologies.
g) Many pollutants are removed with a single process.

By using the same process with Electro Coagulation, it is possible to obtain high efficiency in wastewater with different characteristics. Although the cause of pollution varies such as organic load, heavy metal, oil and grease, dyestuff, sulfate or current, the process is successful in removing these different impurities. The electrocoagulation process, in which more studies continue on variables such as system pH, electrode type, current, operating time, and optimum working standards, has already become the solution of many industrial organizations.