不同活性炭对PAEs的吸附特性研究  

Characteristics Research of PAEs Adsorption on Different Activated Carbon

作　　者：黄荣新[1] 赖后伟 林伟仲[1] 刘立[1] 张杰[2] 

机构地区：[1]环境保护部华南环境科学研究所,广东广州510655 [2]北京工业大学建筑工程学院,北京100124

出　　处：《中国给水排水》2017年第17期81-83,共3页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07206-002);广州市科技计划项目(132000322)

摘　　要：邻苯二甲酸酯类(PAEs)是广泛存在于环境中的激素类化合物,以3种PAEs作为研究对象,分析不同活性炭类型对激素类物质的吸附特性、最佳吸附量及其再生使用情况。结果表明,活性炭吸附PAEs时宜控制p H值为4~8的中性偏酸条件;PAEs去除率随着PAEs分子质量的增加而降低;果壳炭的吸附能力最强,对邻苯二甲酸二甲酯(DMP)的最大吸附容量为398 mg/mg AC,其次是椰壳炭、原煤破碎炭、山西小颗粒活性炭、8#-Ⅱ型大颗粒活性炭;采用稀盐酸+甲醇+超声波的方式可达到一定的脱附再生效果,且延长了使用周期。Phthalate esters （PAEs） are important environmental hormone compounds, and they are widely present in the environment. In this paper, three kinds of phthalate esters were used as experi- mental objects and the adsorption characteristics of the different activated carbon, the optimal adsorption amount and the repetitive use were studied. The results showed that the adsorption of PAEs on activated carbon should be controlled in a neutral or weak acid condition of pH 4 - 8. The removal rate of PAEs declined with the increase of the initial concentration of PAEs and the length of carbon chain. Nutshell carbon showed the strongest adsorption capacity, with a maximum adsorption capacity of 398 mgDMP/ mgAC, followed by coconut shell charcoal, coal crusher coal, small particles of Shanxi carbon and large granular activated carbon. The regeneration of the activated carbon was achieved with the dilute hydro- chloric acid plus methanol plus ultrasound approach, which improved the service life of the activated carbon.

关 键 词：活性炭 邻苯二甲酸酯类 环境激素 吸附特性 

分 类 号：X703[环境科学与工程—环境工程]