Zhang Hua, Chang Cheng-Hsuan, Lü Fan, Lee Duu-Jong, He Pin-Jing, Shao Li-Ming, Su Ay
State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China.
Sci Total Environ. 2009 Jan 1;407(2):879-86. doi: 10.1016/j.scitotenv.2008.09.055. Epub 2008 Nov 13.
Dissolved organic matter (DOM) in leachate samples collected at Laogang Sanitary Landfill in Shanghai, China were fractionated using size exclusion chromatography and were characterized using estrogen receptor-alpha competitor screening assay as toxicity activity index. The estrogen activity of leachate was determined mainly by the hydrophobic acid DOM with moderate MW (3000-14,000 Da) and low MW (<630 Da) and with high aromaticity and fluorophores of possibly pyrenyl characteristics. Landfilling for up to seven years or oxic storage for one month degraded a few of these estrogens. Aerobic SBR treatments effectively degraded the hydrophobic estrogens, but rarely degraded the hydrophilic estrogens.
采用尺寸排阻色谱法对中国上海老港垃圾填埋场采集的渗滤液样品中的溶解性有机物（DOM）进行了分级，并使用雌激素受体α竞争性筛选试验作为毒性活性指标对其进行了表征。渗滤液的雌激素活性主要由中等分子量（3000 - 14,000 Da）和低分子量（<630 Da）、具有高芳香性以及可能具有芘基特征荧光团的疏水酸DOM所决定。填埋长达七年或有氧储存一个月会使其中一些雌激素降解。好氧SBR处理有效地降解了疏水性雌激素，但很少降解亲水性雌激素。
