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HUMIC ACID REMOVAL IN WATER BY γ-IRRADIATION
Author(s): 
Pages: 749-752
Year: Issue:  6
Journal: ENVIRONMENTAL CHEMISTRY

Keyword:  γ-辐照消毒副产物前驱物腐殖酸;
Abstract: 以腐殖酸作为消毒副产物前驱物的代表,研究了γ-辐照对其去除效果.结果表明,γ-辐照对水中腐殖酸具有较好的去除作用.腐殖酸初始浓度为10mg·l-1时,在1.0kGy的辐照剂量下,腐殖酸去除率为88.6%,总有机碳减少62.8%,色度去除率为76%.随着辐照剂量的增加,氧化还原电位先增大后减小,而电导率则相反.在相同的辐照剂量下,初始浓度较低的腐殖酸去除率较高.碳酸盐对辐照去除腐殖酸具有抑制作用,中性条件有利于γ-辐照对腐殖酸的去除.辐照去除腐殖酸的过程可用一级动力学描述.
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