Integrated treatment of landfill leachates including electrooxidation at pilot plant scale

Journal of Hazardous Materials
A M UrtiagaI Ortiz

Abstract

This paper reports the integration of advanced and conventional technologies to deal with the treatment of landfill leachates. The raw leachate, with average values of COD=4430 mg/L and N-NH(4)(+)=1225 mg/L, was first treated on site by an activated sludge large-scale process reducing the former parameters to 1750 mg/L (av.) of COD and 750 mg/L (av.) of N-NH(4)(+). Next, 50 L/h of the effluent were pumped to a pilot plant that included Fenton oxidation followed by an electrooxidation unit, provided with boron doped diamond anodes (anode area=1.05 m(2)); almost complete removal of the organic matter and ammonium nitrogen was achieved. Comparison of the results with those obtained in the laboratory (70 cm(2) of anode area) was performed observing a similar performance in the kinetics of COD removal, while differences were found in the ammonium removal rates. The specific energy consumption necessary to electro-oxidize the organic load below the disposal limit (COD<160 mg/L) at pilot plant scale was 35 kWh/m(3).

Citations

Oct 29, 2013·Journal of Environmental Management·Mafalda Pessoa LopesJoão G Crespo
Apr 2, 2014·Environmental Science and Pollution Research International·Ignasi SirésMarco Panizza
Apr 2, 2014·Environmental Science and Pollution Research International·Elisama Vieira dos SantosCarlos A Martínez-Huitle
Feb 10, 2012·Journal of Hazardous Materials·Elisabetta TurroAlexandros Katsaounis
Apr 19, 2011·Journal of Hazardous Materials·Elisabetta TurroAlexandros Katsaounis
Jun 15, 2010·Journal of Hazardous Materials·Angela AngladaInmaculada Ortiz
Aug 8, 2009·Journal of Hazardous Materials·Huo-Sheng LiJing-da Li
Jun 4, 2016·Environmental Technology·Ivonne Linares HernándezVioleta Lugo Lugo
Oct 30, 2016·Journal of Environmental Management·Mehdi ZolfaghariRino Dubé
Jan 1, 2018·Environmental Science and Pollution Research International·Mehdi ZolfaghariJean François Blais
Jan 7, 2018·Environmental Science and Pollution Research International·Nazely Diban, Ane Urtiaga
Jul 28, 2016·Environmental Science and Pollution Research International·Joaquín R DomínguezEduardo M Cuerda-Correa
Dec 19, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Tran Le LuuBui Xuan Thanh

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