环保型城市建设中地下水体重金属污染的吸附处理研究
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摘要
利用低成本、高吸附效率、适用范围广的壳聚糖(CTS)复合剂去除地下水体中的重金属,已经受到研究者的普遍关注。基于此,本文研究了环保型城市建设中地下水体重金属污染的吸附处理机理,制备出符合标准要求的壳聚糖复合剂,之后通过一系列的生物化学反应,进行高效絮凝、助凝处理,最后达到重金属迁移与去除的目的。试验结果表明,在同等时间内,壳聚糖复合剂对地下水体重金属污染的吸附能力比传统吸附方法高,并且一直保持持续上升状态。
The use of chitosan(CTS) complexes with low cost, high adsorption efficiency and wide application range to remove heavy metals in groundwater has been widely concerned by researchers. Based on this, this paper studies the adsorption treatment mechanism of groundwater weight metal pollution in environmentally friendly urban construction, and prepares chitosan composites that meet the standard requirements. Afterwards, through a series of biochemical reactions,high-efficiency flocculation and coagulation treatment are carried out, and finally the purpose of heavy metal migration and removal is achieved. The test results show that in the same time, the adsorption capacity of chitosan composite on groundwater metal pollution is higher than that of traditional adsorption method, and it has been continuously rising.
The use of chitosan(CTS) complexes with low cost, high adsorption efficiency and wide application range to remove heavy metals in groundwater has been widely concerned by researchers. Based on this, this paper studies the adsorption treatment mechanism of groundwater weight metal pollution in environmentally friendly urban construction, and prepares chitosan composites that meet the standard requirements. Afterwards, through a series of biochemical reactions,high-efficiency flocculation and coagulation treatment are carried out, and finally the purpose of heavy metal migration and removal is achieved. The test results show that in the same time, the adsorption capacity of chitosan composite on groundwater metal pollution is higher than that of traditional adsorption method, and it has been continuously rising.
引文
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4褚效中,赵宜江,徐继明,等.高比表面积活性炭的制备及对Cr(Ⅵ)吸附的研究[J].环境工程学报,20107,4(2):315-318.
5祁宝川,韩志勇,陈吉祥.PRB修复重金属污染地下水的反应介质研究进展[J].应用化工,2017,46(4):749-754.
6李珂珂,段正洋,云露,等.改性壳聚糖材料在含重金属废水处理中的应用研究进展[J].硅酸盐通报,2018,37(5):10-11.
2张学礼,徐乐昌,魏广芝,等.用PRBs技术修复铀污染地下水的研究现状[J].铀矿冶,2018,27(2):55-61.
3李阳,杨高英,雷兆武.重金属废水处理与资源化利用现状[J].电力环境保护,2017,25(4):50-51.
4褚效中,赵宜江,徐继明,等.高比表面积活性炭的制备及对Cr(Ⅵ)吸附的研究[J].环境工程学报,20107,4(2):315-318.
5祁宝川,韩志勇,陈吉祥.PRB修复重金属污染地下水的反应介质研究进展[J].应用化工,2017,46(4):749-754.
6李珂珂,段正洋,云露,等.改性壳聚糖材料在含重金属废水处理中的应用研究进展[J].硅酸盐通报,2018,37(5):10-11.