摘要：邻苯二甲酸酯是一类全球性的重要污染物，本课题进行了9种邻苯二甲酸酯化合物的模拟曝气生物降解行为研究。结果表明，邻苯二甲酸酯的降解速率常数（kb）与其烷基链长度之间存在良好的相关性，lnkb=0.0104x2-0.340x-1.919 (r=0.989)。降解半衰期与烷基链长度同时存在相关，t1/2=0.0296x2-4.814x-0.953 (r=0.979)。

关键词：邻苯二甲酸酯 模拟曝气法 生物降解

Aerobic Degradation of 9 Phthalic Acid Esters

　　Abstracts: Phthalic acid esters (PAEs) are a group of global environmental pollutants. In this paper, biodegradation experiments of 9 PAEs were carried out with acclimated inoculation The results showed that biodegradation rate constants(k_b) of 9 PAEs decreased, and biodegradation half-life time(t_1/2) increased,with the increase of alkyl chain length; T……