Removal of di-n-butyl phthalate from aqueous solution by MIEX

WANG Liang; MA Shushuang; ZHAO Bin; LI Junjing; ZHANG Zhaohui; GUO Xingfei; CAO Hongjie

doi:10.11949/j.issn.0438-1157.20151319

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Removal of di-n-butyl phthalate from aqueous solution by MIEX

更新时间：2025-12-10

- Removal of di-n-butyl phthalate from aqueous solution by MIEX
- CIESC Journal Issue 5, Pages: 2093-2100(2016)
- 作者机构：
  
  1. 天津工业大学环境与化学工程学院,天津,300387
  2. 省部共建分离膜与膜过程国家重点实验室(天津工业大学),天津,300387
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151319
  CLC： 703.1
- Online First：05 May 2016，
  
  Published：05 May 2016
- 稿件说明：
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WANG Liang, MA Shushuang, ZHAO Bin, et al. Removal of di-n-butyl phthalate from aqueous solution by MIEX[J]. CIESC Journal, 2016, (5): 2093-2100.
DOI：

WANG Liang, MA Shushuang, ZHAO Bin, et al. Removal of di-n-butyl phthalate from aqueous solution by MIEX[J]. CIESC Journal, 2016, (5): 2093-2100. DOI： 10.11949/j.issn.0438-1157.20151319.

摘要

邻苯二甲酸二丁酯(DBP)是水源水中常见的内分泌干扰物。以新型的饮用水处理材料离子交换树脂(MIEX)为吸附剂

以DBP为目标污染物

从动力学、吸附等温线、电荷密度测定、红外光谱表征、X射线光电子能谱以及共存组分影响等方面分析了MIEX去除DBP的效果和机理。MIEX去除DBP的过程仅需20 min即达到平衡

可用准二级动力学描述

中性溶液中DBP的饱和吸附量为0.944 mg·g-1。中性条件下DBP带电量仅为2.7×10-3 mmol·mmol-1

MIEX与DBP间的作用并非离子交换

而是以DBP分子与MIEX基材间的疏水作用以及氢键作用为主。高浓度和不会对DBP的去除效果产生影响;高浓度的腐殖酸(HA)轻微抑制DBP的去除

但微量DBP并不会影响MIEX对HA的去除效果。因此

MIEX作为能高效去除水中天然有机物的新型材料

也可用于去除其中微量的DBP

适用于饮用水复合污染的处理。

Abstract

Di-n-butyl phthalate (DBP) is one of endocrine disrupting chemicals (EDCs)

which is commonly found in aquatic environment. In this study

DBP removal by magnetic ion exchange resin (MIEX) was investigated with respect to kinetics

isotherms

charge density analysis

Fourier transform infrared spectroscopy (FT-IR) analysis

X-ray photoelectron spectroscopy (XPS) as well as the effect of accompanying components. The removal of DBP was stable after 20 min

and pseudo-second kinetic model could well depict the removal process. In neutral pH soultion

the maxium uptake capacity of DBP by MIEX was around 0.944 mg·g-1. Since the charge density of DBP was only 2.7×10-3 mmol·mmol-1 at neutral pH

the removal of DBP by MIEX was mainly based on the hydrophobic interaction and hydrogen bonding between MIEX matrix and DBP

instead of ion exchange. High concentrations of accompanying and did not affect the DBP removal. The presence of humic acid (HA) slightly decreased the DBP removal; however

the HA removal by MIEX was not affected at all. As an emerging novel technology for the removal of natural organic matters

MIEX can also remove DBP from aqueous solution. Therefore

it can be applied for drinking water treatment when surface water with complex micropollutants was used as the source.

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