Naslov
Removal of arsenic, phosphates and ammonia from well water using electrochemical/chemical methods and advanced oxidation: A pilot plant approach

Autori
Oreščanin, Višnja ; Kollar, Robert ; Nađ, Karlo ; Halkijević, Ivan ; Kuspilić, Marin ; Findri Guštek, Štefica

Izvornik
Journal of environmental science and health. Part A: Toxic/Hazardous Substance & Environmental Engineering (1093-4529) 49 (2014), 9; 1007-1014

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
heavy metals ; arsenic ; ammonia ; electrocoagulation ; ozonation ; iron anode ; aluminum anode ; hydrogen peroxide ; UV ; waste sludge

Sažetak
The purpose of this work was to develop a pilot plant purification system and apply it to groundwater used for human consumption, containing high concentrations of arsenic and increased levels of phosphates, ammonia, mercury and color. The groundwater used was obtained from the production well in the Vinkovci County (Eastern Croatia). Due to a complex composition of the treated water, the purification system involved a combined electrochemical treatment, using iron and aluminum electrode plates with simultaneous ozonation, followed by a post-treatment with UV, ozone and hydrogen peroxide. The removal of the contaminant with the waste sludge collected during the electrochemical treatment was also tested. The combined electrochemical and advanced oxidation treatment resulted in the complete removal of arsenic, phosphates, color, turbidity, suspended solids and ammonia, while the removal of other contaminants of interest was up to 96.7%. Comparable removal efficiencies were obtained by using waste sludge as a coagulant.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA