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| Removal performance of Cu2+ and humic acid from aqueous solutions by heavy metal flocculant |
| WANG Gang, GUAN Ying-bing, LI Jia, XU Min, CHANG Qing |
| School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China |
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Abstract The heavy metal flocculant, named mercaptoacetyl hydroxg-polyacrylamide (MAMPAM), was prepared by mixing polyacrylamide, formaldehyde, sodium hydroxide and mercaptoacetic acid as raw materials, and its removal performance of Cu2+ and humic acid (HA) from water samples was investigated. MAMPAM had a certain effect on the removal of Cu2+ or HA from the single system contained Cu2+ or HA, respectively. The Cu2+ removal efficiency increased with the increase of the initial pH value. The highest removal rate of Cu2+ and HA reached 95.92% and 66.98% at pH 6.0, respectively, in the single Cu2+ or HA system. Moreover, synergistic promotion of Cu2+ and HA was observed in the mixture system contained Cu2+ and HA. The coexisting HA could promote the Cu2+ removal from water samples and the removal efficiency of Cu2+ increased with increasing HA concentration or pH value in the mixture system. Similarly, the HA removal by MAMPAM was enhanced due to the coexisting Cu2+ and its removal efficiency was also improved when HA concentration increased in the mixture system.
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Received: 05 February 2018
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| [1] |
Miran W, Jang J, Nawaz M, et al. Mixed sulfate-reducing bacteria-enriched microbial fuel cells for the treatment of wastewater containing copper[J]. Chemosphere, 2017,189(12):134-142.
|
| [2] |
陈雅琼,于春波.高分子型重金属去除剂处理含铜废水[J]. 水处理技术, 2016,42(3):99-102.
|
| [3] |
邱伊琴,孙水裕,肖晓,等.磁絮凝耦合重金属捕集剂EDTC对酸性络合镍的深度脱除[J]. 中国环境科学, 2017,37(2):560-569.
|
| [4] |
龙良俊,王里奥,余纯丽,等.改性污泥腐殖酸的表征及其对Cu2+的吸附特性[J]. 中国环境科学, 2017,37(3):1016-1023.
|
| [5] |
Philip C S, Singer C. Control of disinfection by-products in drinking water[J]. Journal Environmental Engineering, 1994,120(4-6):727-744.
|
| [6] |
Nieminski E C, Chaudhuri S, Lamoreaux T. The occurrence of DBPs in Utah drinking waters[J]. Journal American Water Works Association, 1993,85(9):98-105.
|
| [7] |
陈梦妍,朱亮,张静.腐殖酸对高锰酸钾氧化苯酚的影响及其作用机制[J]. 中国环境科学, 2015,35(10):3041-3045.
|
| [8] |
杨毅,兰亚琼,金鹏康,等.腐殖酸与Cd2+的结合特性及其影响因素[J]. 环境化学, 2017,36(6):1198-1203.
|
| [9] |
王雅辉,邹雪刚,舒冉君,等.胡敏素对Pb2+吸附的响应面优化及机理[J]. 中国环境科学, 2017,37(5):1814-1822.
|
| [10] |
Melo B A G, Motta F L, Santana M H A, et al. Humic acids:Structural properties and multiple functionalities for novel technological developments[J]. Materials Science and Engineering C, 2016,62(5):967-974.
|
| [11] |
谢发之,谢志勇,李国莲,等.腐植酸对氧化锌吸附Cu(Ⅱ)的影响[J]. 中国环境科学, 2017,37(8):2970-2977.
|
| [12] |
Ohlenbusch G, Kumke M U, Frimmel F H. Sorption of phenols to dissolved organic matter investigated by solid phase microextraction[J]. Science of the Total Environment, 2000,253(1-3):63-74.
|
| [13] |
张珍,沈珍妙,范天恩,等.腐植酸对nZVI去除水中Cr(VI)的抑制及抑制作用的消除[J]. 中国环境科学, 2013,33(1):63-68.
|
| [14] |
谢彬彬,廖建波,胡芸,等.腐殖酸对巯基功能化离子印迹聚合物吸附Cd2+的增效作用[J]. 环境化学, 2017,36(6):1213-1225.
|
| [15] |
Tokuyama H, Hisaeda J, Nii S, et al. Removal of heavy metal ions and humic acid from aqueous solutions by co-adsorption onto thermosensitive polymers[J]. Separation and Purification Technology, 2010,71:83-88.
|
| [16] |
钱飞跃,史梦婷,王建芳,等.有机物性质对混凝-微滤-纳滤去除水中重金属的影响[J]. 环境工程学报, 2016,10(7):3634-3640.
|
| [17] |
管映兵,王刚,徐敏,等.新型重金属絮凝剂巯基乙酰化羟甲基聚丙烯酰胺的优化制备[J]. 环境科学学报, 2017,37(12):4578-4585.
|
| [18] |
常青.絮凝学研究的新领域-具有重金属捕集功能的高分子絮凝剂[J]. 环境科学学报, 2015,35(1):1-11.
|
| [19] |
王刚,常青.新型高分子絮凝剂对水中有机配位汞的捕集性能[J]. 中国环境科学, 2012,32(5):837-842.
|
| [20] |
邱伊琴,孙水裕,肖晓,等.磁絮凝耦合重金属捕集剂EDTC对酸性配位镍的深度脱除[J]. 中国环境科学, 2017,37(2):560-569.
|
| [21] |
袁斌,吕松,张卫红.紫外分光光度法测定水中微量腐殖酸的研究[J]. 工业水处理, 2010,30(4):75-77.
|
| [22] |
顾时国,延克军,谭啸.响应曲面优化MIEX去除水中腐殖酸的工艺研究[J]. 离子交换与吸附, 2015,31(5):401-409.
|
| [23] |
霍进彦,赵鹏,张宏伟,等.基于非对称场流分离技术的水环境腐殖酸聚集特性研究[J]. 环境科学学报, 2016,36(8):2899-2904.
|
|
|
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