沸石滤柱对饮用水中邻苯二甲酸酯的去除.pdf

学兔ww. XILC: I. C CT
第31卷第6期
土木建筑与环境工程
31No.6
2009年12月
Journal of Civil, Architectural &. Environmental Engincering
Dec.2009
沸石滤柱对饮用水中邻苯二甲酸酯的去除
高旭',李怀茂,郭劲松',余仲勋',王峰青2,陆磊2
(1.重庆大学三峡库区生态环境教育部重点实验室,重庆400045;2,重庆市水务集团股份有限公司,重庆400013)
摘要:通过对沸石滤柱吸附去除饮用水中微量邻苯二甲酸酯(又称为酞酸酯, phthalate esters,
PAEs)的研究,探讨其工程应用的可行性。邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二丁酯(DBP)
邻苯二甲酸二辛酯(DOP)、邻苯ニ甲酸ニ(2一乙基己基)酯(IEHP)4种PAEs被选作目标物质。
控制沸石漶柱的空床接触时间为12~18min,使DMP、DBP、DOP及DFHP4种酯类进水浓度皆
为20~100g/Lレ;通过高效液相色语法(HPLC)测定出水中每种PAE的浓度。研究发现,总PAEs
的去除率在24.7%~33.8%之间;随着进水浓度的増加,DMP、DBP的去除率下降,DEHP、DOP去
除率上升。
关键词:沸石;吸附;邻苯二甲酸酯;饮用水;内分泌干扰物质
中图分类号:TU991
文献标志码:A文章编号:1674-4764(2009)05-0128-04
Removal of Phthalate Esters from Drinking Water
with Zeolite Filter Column
GAO Xu, L/ Huai-mao GUO Jin-song,YU Zhong-xun ,WANG Feng-qing, LU Lei
(1. Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University
Chongqing 400045, P. R. China; 2. Chongqing Water(group)Corporation [imited, Chongging 400013, P. R. China)
Abstract: The feasibility using zeolite filter column was investigated to remove phthalate esters from
drinking water through a bench scale study. Dimethyl phthalate(DMP, dibutyl phthalate (DBP), dioctyl
phthalate (DOP) and di-(2-ethylhcxyl) phthalate (DEHP) were selected as the representative target
contaminants, and the each PAE influent concentration of the zeolite filter column is about 20ug/l-100
Hg/L. The four sorts of PAE were determined with the high performance liquid chromatography(HPLC)at
the condition of the zeolite filter column's empty bed contact time(EBCT) from12 min to 18 min. The
results indicated that the removal efficiency of total PAES(contain DMP, DBP, DOP and DEHP) was
fluctuating within 24. 7%--33.8%; with the increase of the influent concentration, the removal rate o
IMP and DBP decreased while DEHP and DOP increased
Key words: zeolites; adsorption; phthalate esters; drinking water; endocrine disrupting chemicals
邻苯二甲酸酯( Phthalatcesters,PAEs)是一类控制污染物,3种被中国列人环境优先控制污染物
常用的塑料增塑剂,在聚氯乙烯薄膜、人造革、软管、黑名单4的,中国新颁布的生活饮用水卫生标准(GB
日用品、医疗用品上都有广泛应用;还多用作农药载5749一2006)也将邻苯二甲酸二(2一乙基己基)酯作
体、染料、化妆品、润滑剂、去泡剂等的生产原料,且为控制指标之一?。塑料制品的全球性大量应用导
该类物质也属于干扰内分泌的环境激素类物质。致PAEs在环境中无处不在。目前,PAEs在全球主
PAEs类化合物中已有6种被美国环保局列为优先要工业国的生态环境中已达到了普遆检出的程度。
收稿日期:2009-02-20
基金项目:重庆市科技攻关划项目(CSTC2006AB7055);重庆大学研究生科技创新基金(200911A1B0O80324)
作者简介:高旭(1971-),男、副教授、博上,主要从事饮用水新出现污染物处理、水处理热力学研究,( Email)gaoxu(のcgu.edu.cn