饮用水除砷材料吸附特性及影响因素分析

丁文成; 闫凤冬; 赵洪伟; 丁爱中; 张国立

环境工程学报

饮用水除砷材料吸附特性及影响因素分析

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丁文成, 闫凤冬, 赵洪伟, 丁爱中, 张国立. 饮用水除砷材料吸附特性及影响因素分析[J]. 环境工程学报, 2013, 7(3): 873-878.

引用本文:

丁文成, 闫凤冬, 赵洪伟, 丁爱中, 张国立. 饮用水除砷材料吸附特性及影响因素分析[J]. 环境工程学报, 2013, 7(3): 873-878.

Ding Wencheng, Yan Fengdong, Zhao Hongwei, Ding Aizhong, Zhang Guoli. Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 873-878.

Citation:

Ding Wencheng, Yan Fengdong, Zhao Hongwei, Ding Aizhong, Zhang Guoli. Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 873-878.

饮用水除砷材料吸附特性及影响因素分析

1.
北京师范大学水科学研究院,教育部地下水污染控制与修复工程研究中心, 污染场地风险模拟与修复北京市重点实验室,北京 100875
2.
天津市水文水资源勘测管理中心,天津 300061
3.
天津港保税区环境保护局,天津 300308
基金项目:
国家自然科学基金资助项目(40873076)
中图分类号: X523

Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water

1.
Beijing Key Laboratory for Risk Modeling and Remediation of Contaminated Site, Key Laboratory for Groundwater Pollution Control and Remediation, Ministry of Education, College of Water Sciences, Beijing Normal University, Beijing 100875, China
2.
Tianjin Hydrology & Water Resources Survery Administration Center, Tianjin 300061,China
3.
Tianjin Port Free Trade Zone Environmental Protection Bureau, Tianjin 300308, China
Fund Project:

摘要: 采用活性氧化铝、零价铁粉和载铁沸石作为吸附剂,通过静态吸附实验,研究3种饮用水除砷材料的吸附特性及影响因素。结果表明,在pH值为6.5,砷浓度为1 mg/L,投加量为2 g/L,25℃恒温的条件下,活性氧化铝、零价铁粉和载铁沸石分别在90 min、150 min和90 min达到吸附平衡状态,均较好符合langmuir等温吸附模型,对砷的最大吸附容量依次为7.3、3.3和3.9 mg/g。pH值和竞争性阴离子对砷的去除均有显著影响。降低溶液pH值能明显提高3种材料的除砷效率;水中磷酸根离子的存在,能够明显降低活性氧化铝和零价铁粉的除砷效率;水中硅酸根离子的存在,能够明显降低零价铁粉和载铁沸石的除砷效率。
- 活性氧化铝 /
- 零价铁粉 /
- 载铁沸石 /
- 砷
Abstract: Batch experiments were conducted to investigate the sorption characteristic and the factors affecting As(Ⅴ) removal from drinking water for activated alumina, zero-valent iron and iron-oxide coated zeolite (IOCZ). The experimental results suggest that the highest As(Ⅴ) removal efficiency of activated alumina, zero-valent iron and IOCZ was reached after 90 min, 150 min and 90 min, respectively. The adsorption of As(Ⅴ) on Activated alumina, zero-valent iron and IOCZ was found to follow the Langmuir isotherm. The maximal sorption capacity of activated alumina, zero-valent iron and IOCZ was 7.3 mg/g, 3.3 mg/g and 3.9 mg/g, respectively with the dosage of absorbents were 2 g/L, the initial concentration of As(Ⅴ) was 1 mg/L, the pH value was 6.5, at 25℃. The As(Ⅴ) removal efficiency from the drinking water is dramatically affected by pH value and competitive ions. The removal efficiency of As(Ⅴ) can be increased by the decreasing the pH value. the presence of phosphate decreased the efficiency of arsenic removal for both batch activated alumina, and zero-valent iron; while the presence of silicate decreased the efficiency of arsenic removal for both zero-valent iron and IOCZ.
- activated alumina /
- zero-valent iron /
- iron-oxide coated zeolite (IOCZ) /
- arsenic

[1]	孙殿军,王丽华,姜树林,等.中国大陆地方性砷中毒病情与防治动态、现状的分析. 中国地方病防治杂志,2002,17(2):107-108
[2]	Monhammad M. R., Mrinal K. S., Sad A., et al. The magnitude of arsenic contamination in groundwater and its health effects to the inhabitants of the Jalangi—One of the 85 arsenic affected blocks in West Bengal, India. Science of the Total Environment, 2005, 338(3): 189-200
[3]	陈春宁,石林,熊正为,等. Fe⁰对饮用水中砷的去除效率及影响因素. 安全与环境学报,2007,7(4): 46-49 Chen Chunning, Shi Lin, Xiong Zhengwei, et al. Factors influencing arsenic-removing efficiency from the drinking water by using Fe⁰. Journal of Safety and Environment.2007, 7(4): 46-49(in Chinese)
[4]	Jeong Y.R., Fan M.H.,Singh S., et al. Evaluation of iron oxide and aluminum oxide as potential arsenic(Ⅴ) adsorbents.Chemical Engineering and Process, 2007, 46(10): 1030-1039
[5]	Mirna H., Brankica K., Mirko K. Arsenite and arsenate sorption by hydrous ferric oxide/polymeric material. Desalination 2008, 229(3): 1-9
[6]	张道勇,潘响亮,宋颖霞,等. 零价铁去除水中锑(Sb) 的研究. 地球与环境,2009, 37(3): 315-318 Zhang Daoyong, Pan Xiangliang, Song Yingxia, et al. Removal of antimony from water by Zero-valent Iron. Earth and Environment, 2009, 37(3): 315-318(in Chinese)
[7]	Sushree S. T., Ashok M. R. Enhanced adsorption capacity of activated alumina by impregnation with alum for removal of As(Ⅴ) from water. Chemical Engineering Journal, 2008, 138(1-3): 179-186
[8]	高乃云,严敏,乐林生. 饮用水强化处理技术. 北京:化学工业出版社,2005.84-85
[9]	Jia C. H., Chien J. L., Chih H. L., et al. Evaluation of the multiple-ion competition in the adsorption of As(Ⅴ) onto reclaimed iron-oxide coated sands by fractional factorial design. Chemosphere, 2008, 72(7): 1049-1055

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丁文成, 闫凤冬, 赵洪伟, 丁爱中, 张国立. 饮用水除砷材料吸附特性及影响因素分析[J]. 环境工程学报, 2013, 7(3): 873-878.

引用本文:

丁文成, 闫凤冬, 赵洪伟, 丁爱中, 张国立. 饮用水除砷材料吸附特性及影响因素分析[J]. 环境工程学报, 2013, 7(3): 873-878.

Citation:

Ding Wencheng, Yan Fengdong, Zhao Hongwei, Ding Aizhong, Zhang Guoli. Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 873-878.

饮用水除砷材料吸附特性及影响因素分析

1. 北京师范大学水科学研究院,教育部地下水污染控制与修复工程研究中心, 污染场地风险模拟与修复北京市重点实验室,北京 100875
2. 天津市水文水资源勘测管理中心,天津 300061
3. 天津港保税区环境保护局,天津 300308

收稿日期: 2011-07-04

基金项目:

国家自然科学基金资助项目(40873076)

关键词:

摘要: 采用活性氧化铝、零价铁粉和载铁沸石作为吸附剂,通过静态吸附实验,研究3种饮用水除砷材料的吸附特性及影响因素。结果表明,在pH值为6.5,砷浓度为1 mg/L,投加量为2 g/L,25℃恒温的条件下,活性氧化铝、零价铁粉和载铁沸石分别在90 min、150 min和90 min达到吸附平衡状态,均较好符合langmuir等温吸附模型,对砷的最大吸附容量依次为7.3、3.3和3.9 mg/g。pH值和竞争性阴离子对砷的去除均有显著影响。降低溶液pH值能明显提高3种材料的除砷效率;水中磷酸根离子的存在,能够明显降低活性氧化铝和零价铁粉的除砷效率;水中硅酸根离子的存在,能够明显降低零价铁粉和载铁沸石的除砷效率。

English Abstract

Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water

1. Beijing Key Laboratory for Risk Modeling and Remediation of Contaminated Site, Key Laboratory for Groundwater Pollution Control and Remediation, Ministry of Education, College of Water Sciences, Beijing Normal University, Beijing 100875, China
2. Tianjin Hydrology & Water Resources Survery Administration Center, Tianjin 300061,China
3. Tianjin Port Free Trade Zone Environmental Protection Bureau, Tianjin 300308, China

Received Date: 2011-07-04

Fund Project:

Keywords:

Abstract: Batch experiments were conducted to investigate the sorption characteristic and the factors affecting As(Ⅴ) removal from drinking water for activated alumina, zero-valent iron and iron-oxide coated zeolite (IOCZ). The experimental results suggest that the highest As(Ⅴ) removal efficiency of activated alumina, zero-valent iron and IOCZ was reached after 90 min, 150 min and 90 min, respectively. The adsorption of As(Ⅴ) on Activated alumina, zero-valent iron and IOCZ was found to follow the Langmuir isotherm. The maximal sorption capacity of activated alumina, zero-valent iron and IOCZ was 7.3 mg/g, 3.3 mg/g and 3.9 mg/g, respectively with the dosage of absorbents were 2 g/L, the initial concentration of As(Ⅴ) was 1 mg/L, the pH value was 6.5, at 25℃. The As(Ⅴ) removal efficiency from the drinking water is dramatically affected by pH value and competitive ions. The removal efficiency of As(Ⅴ) can be increased by the decreasing the pH value. the presence of phosphate decreased the efficiency of arsenic removal for both batch activated alumina, and zero-valent iron; while the presence of silicate decreased the efficiency of arsenic removal for both zero-valent iron and IOCZ.

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饮用水除砷材料吸附特性及影响因素分析

Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water

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饮用水除砷材料吸附特性及影响因素分析

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Analysis on absorbents for sorption characteristic and factors affecting As(Ⅴ) removal from drinking water

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