强碱性阴离子树脂去除水体中邻苯二甲酸酯类  

THE DEGREASING OF PHTHALIC ACID ESTERS IN WATER BY STRONGLY ALKALINE ANION RESIN

作　　者：李敏[1] 徐宏云 

机构地区：[1]国土资源部昆明矿产资源监督检测中心,云南昆明650000

出　　处：《云南地质》2017年第3期425-428,共4页Yunnan Geology

摘　　要：采用强碱性阴离子交换树脂处理水中的邻苯二甲酸酯类有机污染物,根据其理化性质建立高效液相色谱法(HPLC)对邻苯二甲酸酯类物质的含量进行分析检测。根据邻苯二甲酸酯类理化性质考察不同类型的树脂、树脂投加量、溶液初始浓度、溶液反应温度等因素对水中邻苯二甲酸酯类(PAEs)的去除效果的影响。实验表明,在近中性条件下,树脂投加量为0.4g、邻苯二甲酸二甲酯(DMP)初始浓度为21.524mg/L、反应温度30℃、反应5h时,DMP去除率达99%以上。应用强碱性阴离子交换树脂,使邻苯二甲酸酯类有机污染物降解速率得到大幅度提高,并符合经济和环保要求,能够较迅速降解大部分邻苯二甲酸酯,使水中残留邻苯二甲酸酯的含量,达到国标规定以下值。The organic pollutant of phthalic acid esters in water is degreased with the strongly alkaline anion resin, the phthalic acid esters are tested with high-effect liquid color spectrum method set up according to the phys-ical-chemical quality. The influence of different resin, resin dosing, initial concentration and reaction T of solution on the degreasing effect of phthalic acid esters in water has been examined according to the physical-chemi-cal quality of the phthalic acid esters. The testing shows the degreasing ratio of dimethyl phthalic acid above 99% under nearly neutral condition, resin dosage 0. 4g, initial concentration of dimethyl phthalic acid 21.524mg/L, reaction T 30°C , reaction time 5h. The degradation rate of phthalic acid esters organic pollutant can be increased clear and meet the requirements of economy and environment protection in utilization of strongly alkaline anion res-in ,which can degrade rapidly most phthalic acid esters and result in the relict phthalic acid esters in water below the state standard.

关 键 词：强碱性阴离子交换树脂 邻苯二甲酸二甲酯 高效液相色谱法 水解 

分 类 号：O657.72[理学—分析化学]