Electrocoagulation: an electrochemical process for water clarification

Éva Fekete; Béla Lengyel; Tamás Cserfalvi; Tamás Pajkossy

doi:10.5599/jese.218

Authors

Éva Fekete Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences Magyar tudósok körútja 2., Budapest, H-1117
Béla Lengyel Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences Magyar tudósok körútja 2., Budapest, H-1117
Tamás Cserfalvi IC-Produkt Co, Puskás Tivadar út 14. C/B, Budaörs, H-2040, Hungary
Tamás Pajkossy Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences Magyar tudósok körútja 2., Budapest, H-1117

DOI:

https://doi.org/10.5599/jese.218

Keywords:

Waste-water, Flotation, Flocculation, Pollution, Adsorption, Colloid

Abstract

Electrocoagulation is a group of various procedures used for removing contaminants from water by electrochemically dissolving aluminum or iron. The contaminants of the solution may be incorporated in the in situ forming metal hydroxide flocs, which can be filtered as a precipitate or skimmed as a float. The main features of the procedure are highlighted on the example of cleaning of an oily waste-water. Design parameters of a 1 m³/h waste-water cleaning system are calculated from the results of small-scale experiments.