Laboratory of Chemical Engineering, Faculty of Sciences, University of A Coruña, 15008 A Coruña, Spain.
Water Sci Technol. 2010;61(1):47-52. doi: 10.2166/wst.2010.786.
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/m(3) 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%.
本文旨在通过 SHARON 工艺实现对垃圾渗滤液中氮的部分硝化，从而获得适用于 ANAMMOX 工艺的出水。首先，SHARON 反应器以 2,000 mg N/L（1.1 kg N/m(3) d）的氨氮浓度接受厌氧预处理后的渗滤液。在此条件下，出水的平均氨氮和亚硝氮浓度分别为 775 mg N/L 和 1,225 mg N/L。在此期间，由于大部分可生物降解有机物已在厌氧预处理中去除，COD 去除率非常低。随后，SHARON 反应器直接以未经预处理的渗滤液为进水，部分硝化效率降低。同时，COD 去除率增加，达到约 28%。
