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Water Science & Technology—WST Vol 61 No 1 pp 47–52 © IWA Publishing 2010 doi:10.2166/wst.2010.786 The SHARON process in the treatment of landfill leachateA. Vilar, M. Eiroa, C. Kennes and M. C. VeigaLaboratory of Chemical Engineering, Faculty of Sciences, University of A Coruña, Alejandro de la Sota no 1, 15008, A Coruña, Spain E-mail: veiga@udc.esABSTRACT The purpose of this paper was to study the partial nitrification of the nitrogen present in a landfill leachate applying the SHARON process in order to obtain a suitable effluent to the ANAMMOX process. As a first step, the SHARON reactor was fed anaerobically pre-treated leachate at an ammonium concentration of 2,000 mg N/L (1.1 kg N/m3 d). In such conditions, the average ammonium and nitrite concentrations in the effluent were 775 mg N/L and 1,225 mg N/L, respectively. During this period the COD removal was very low since most of the biodegradable organic matter was removed in the anaerobic pre-treatment. Afterwards, the SHARON reactor was fed leachate without a previous treatment and the efficiency of the partial nitritation diminished. As well, the COD removal increased, achieving a percentage around 28%. Keywords: leachate; partial nitrification; SHARON eProduct: Buy this article for £24.00 (IWA MEMBER PRICE: £18.00) All prices include VAT. For customers where VAT should not be applied, the VAT amount will be removed upon payment |
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