Naslov
Electrocoagulation in aqueous dispersions

Autori
Meteš, Azra

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Workshop: Hybrid gas -liquid-solid non-thermal plasma discharge processes for pollution control, book of abstracts / Koprivanac, Natalija - Zagreb, 2003

Skup
Workshop: Hybrid gas -liquid-solid non-thermal plasma discharge processes for pollution control

Mjesto i datum
Dubrovnik, Hrvatska, 05.05.2003. - 08.05.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
electrocoagulation; printing ink wastewater; Fenton; oxidation

Sažetak
A renewed interest in electrocoagulation has been initiated by the search for cost-effective wastewater treatment processes. Electrocoagulation is a combination of the processes of electroflotation and electroprecipitation, involving the electrolytic addition of coagulating metal ions directly into water from sacrificial electrodes. Such process has shown a number of advantages over their addition chemically, meaning no addition of undesired anions, less produced sludge volume and possibility of removing the wider range of pollutants. The objective in this work was to quantitatively compare conventional chemical dosing and electrocoagulation applied on printing ink wastewater. The two approaches based on TOC and turbidity removal were evaluated by monitoring pH, conductivity, zeta potential, coagulant level/current density and voltage in order to investigate how the process efficiency is dependent on current density, conductivity and pH. The dominant separation process, coagulant consumption and power consumption were determined. Another objective was to investigate the possibility of improvement of electrocoagulation by combination with Fenton oxidation in order to minimize the organic content in water.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA