期刊
BIORESOURCE TECHNOLOGY
卷 210, 期 -, 页码 131-137出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.01.035
关键词
Stabilized landfill leachate; Ca/Al-Cl LDH; Organic matters; Selective removal
This study investigated the effectiveness of Ca/Al-Cl LDH for the treatment of stabilized landfill leachate. Experiments were performed including different dosage of Ca/Al-Cl LDH and comparison with different reagents, such as CaCl2 and AlCl3. As a result, Ca/Al-Cl LDH efficiently removed organic matters in stabilized landfill leachate with the maximum removal (59.41% COD, 62.06% DOC and 70.56% UV254) at the dose of 30 g/L. According to UV254 and EEM, it is remarkable that the formation of Ca/Al-LDH has a greater beneficial to organic removal than other reagents, especially for fulvic acid-like and humic acid-like compounds. Moreover, the removal of fulvic acid-like compounds was much better than humic acid-like compounds. The previous compounds had more carboxylic groups, thus had a better removal selectivity. (C) 2016 Published by Elsevier Ltd.
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