摘要
重金属废水是对环境污染最严重和对人类危害最大的工业废水之一,吸附法作为一种重要的处理重金属废水的方法已经得到广泛应用。本文介绍了近年来利用吸附法处理重金属废水的研究进展。根据吸附机理将吸附剂吸附重金属的方法分为化学吸附和物理吸附两大类,并对其研究现状进行了介绍。指出温度、吸附剂的用量、吸附时间、重金属离子的初始浓度以及溶液的pH值等吸附条件对吸附剂吸附重金属的影响,介绍了活性炭、沸石、壳聚糖、膨润土、生物吸附剂、废弃农作物、纳米材料、离子交换树脂、高分子吸附材料等9种吸附剂处理重金属废水的研究进展,同时对吸附法处理重金属废水的发展方向进行了展望。
Heavy metals in wastewater cause serious environmental pollutions and impact human health. As a very important method to remove heavy metal ions, adsorption has been widely used in industrial pollution control. This paper reviewed the removal of heavy metals in wastewater by adsorption. Studies on two major categories of adsorption, physical adsorption and chemical adsorption were summarized. The influencing factors such as temperature, the dosages of absorbent, contact time, the initial concentration of heavy metals, pH et al. on adsorption were analyzed. The researches of most commonly used absorbents were also summarized. The research trend to the treatment of the heavy metal wastewater in the future was discussed as well.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2013年第11期2749-2756,共8页
Chemical Industry and Engineering Progress
基金
教育部科学研究重点项目(211124)
湖南省大学生研究性学习和创新性实验计划项目(湘教通[2012]141号)
湖南省自然科学基金项目(11JJ3053)
湖南省教育厅青年项目(10B087)
吉首大学人才引进项目(jsdxkyzz200904)
关键词
吸附法
重金属
废水
环境污染
adsorption method
heavy metal
wastewater
environmental pollution
