Doctoral Dissertation: Electrocoagulation in the treatment of industrial waters and wastewaters
The doctoral dissertation of Mikko Vepsäläinen, M.Sc., “Electrocoagulation in the treatment of industrial waters and wastewaters” was examined at Lappeenranta University of Technology on November 2nd.
In this research, the applications of electrocoagulation were investigated in raw water treatment and wastewater applications. Chemical coagulation is commonly used in raw water and wastewater treatment plants for the destabilisation of pollutants so that they can be removed in the subsequent separation processes. The most commonly used coagulation chemicals are aluminium and iron metal salts. Electrocoagulation technology has also been proposed for the treatment of raw waters and wastewaters.
Surface water treatment with electrocoagulation can produce high quality water, which could be used as potable water or fresh water for industrial applications. In wastewater treatment applications, electrocoagulation can be used to precipitate malodorous sulphides to prevent their release into air. Technology seems to be able to remove some toxic pollutants from wastewater and could be used as pretreatment prior to treatment at a biological wastewater treatment plant.
Professor Raimo Alén, University of Jyväskylä, acted as the opponent. Professor Mika Sillanpää of Lappeenranta University of Technology acted as the custos.
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