%0 Journal Article
%T The effects of organic matter and hydrous metal oxides on the anaerobic degradation of gamma-666, p,p''-DDT in Liaohe River sediments]<br>沉积物中有机质及金属水合氧化物对γ-666、p,p′-DDT缺氧生物降解性影响
%A Zhao Xu
%A Quan Xie
%A Zhao Huimi
%A Chen Shuo
%A Chen Jingwen
%A Zhao Yazhi
%A <br>赵旭
%A 全燮
%A 赵慧敏
%A 陈硕
%A 陈景文
%A 赵雅芝
%J 环境科学
%D 2002
%I 
%X Effects of organic matter and active Fe, Al, Mn oxides on the anaerobic degradation of gamma-666, p,p'-DDT were investigated by means of removing organic matter and hydrous metal oxides in Liaohe River sediments sequentially. The results showed that the anaerobic degradation of gamma-666, p,p'-DDT followed pseudo-first-order kinetics in different sediments; but, the extents and rates of degradation were different, even the other conditions remained same. Anaerobic degradation rates of gamma-666, p,p'-DDT were 0.020 d-1, 0.009 d-1 respectively for the sediments without additional carbon resources. However, with additional carbon resources, the anaerobic degradation rates of gamma-666, p,p'-DDT were 0.071 d-1 and 0.054 d-1 in the original sediments respectively. After removing organic matter, the rates were decreased to 0.047 d-1, 0.037 d-1. In the sediments removed organic matter and hydrous metal oxides, the rates were increased to 0.067 d-1, 0.059 d-1. This results indicated that organic matter in the sediments accelerated the anaerobic degradation of gamma-666, p,p'-DDT; the hydrous metal oxides inhibited the anaerobic degradation of gamma-666 and p,p'-DDT.
%K 缺氧降解
%K 有机质
%K 金属水合氧化物
%K γ-666
%K p
%K p′-DDT
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=DD7D5DF8E949C6D1&yid=C3ACC247184A22C1&vid=EA389574707BDED3&iid=38B194292C032A66&sid=EDA22B444205D04A&eid=7F5DDA4924737DF5&journal_id=0250-3301&journal_name=环境科学&referenced_num=13&reference_num=10