%0 Journal Article
%T Impact of Organic Matter in Water on the Adsorption of EDCs (BPA) onto Granular Activated Carbon (GAC) from the View of Molecular Weight Distribution<br>从分子质量的变化分析有机物对GAC吸附内分泌干扰物(BPA)的影响
%A LI Ruo-yu
%A GAO Nai-yun
%A XU Bin
%A ZEN Wen-hui
%A ZHAO Jian-fu
%A LE Lin-sheng
%A <br>李若愚
%A 高乃云
%A 徐斌
%A 曾文慧
%A 赵建夫
%A 乐林生
%J 环境科学
%D 2006
%I 
%X Impact of organic material with different molecular weight( MW) on the adsorption performance of endocrine disrupting chemicals(EDCs)--bisphenol A (BPA) in water on granular activated carbon (GAC) were investigated. Compared to the adsorption capacity in deionized water, the qm values of Langmuir of BPA-raw water, BPA-filtered water and BPA-effluents after ozonation solution decrease 29.95 % ,43.56% and 44.44% respectively, and the k2 values of pseudo second order decrease 43.05 %, 49.75% and 56.38% respectively. On the hand, the secondary micropores may be blocked up by the organic matter with MW higher than 3 000, especially higher than 10 000, on the other hand, the direct sites competitive adsorption may be exists between the BPA molecule and the organic matter with MW lower than 3000, especially lower than 1000. Both of process may be resulted in reduction of the adsorption capacity, k2 value of adsorption kinetics of BPA onto GAC.
%K bisphenol A
%K molecular weight distribution
%K organic matter
%K granular activated carbon
%K adsorption isotherm
%K adsorption kinetics<br>双酚A
%K 分子量分布
%K 有机物
%K 颗粒活性炭
%K 吸附等温线
%K 吸附动力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=0C5429C89DD0A8FC&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=59906B3B2830C2C5&sid=50C3ACBE05C3B8CE&eid=B69FEB12D9A4855D&journal_id=0250-3301&journal_name=环境科学&referenced_num=3&reference_num=11