Naslov
Characterization and electrochemical treatment of landfill leachate

Autori
Oreščanin, Višnja ; Kollar, Robert ; Ruk, Damir ; Nađ, Karlo

Izvornik
Journal of Environmental Science and Health. Part A : Toxic/Hazardous Substances and Environmental Engineering (1093-4529) 47 (2012), 3; 462-469

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

Ključne riječi
Landfill leachate ; COD ; ammonia ; ozonation ; electrocoagulation/electroreduction ; iron anode ; aluminum anode ;

Sažetak
A combined treatment approach using advanced oxidation, electrochemical methods and microwaves was developed and applied for the treatment of landfill leachate taken from Piskornica (Koprivnica, Croatia) sanitary landfill. Due to the complex nature of the effluent and extremely lowbio-degradability (BOD5/CODratio=0.01) the purification of the leachate started with pre-treatmentwith ozone followed by simultaneous ozonation and electrocoagulation/electrooxidation using the set of iron and aluminum electrodes, and finally, the degradation of organic residue and ammonia with microwaves. Applied treatment approach resulted in clear, colorless and odorless effluent with the values of all measured parameters significantly lower compared to the upper permissible limit for discharge into the environment. The removal percentages of the parameters: color, turbidity, suspended solids, ammonia, COD and iron following the combined treatment were 98.43%, 99.48%, 98.96%, 98.80%, 94.17% and 98.56%, respectively.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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