Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron

doi:10.1007/s40242-018-8104-3

高等学校化学研究 ›› 2018, Vol. 34 ›› Issue (4): 546-551.doi: 10.1007/s40242-018-8104-3

Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron

CUI Jian^1,3, WANG Ende¹, HOU Zhimin², ZHOU Rui², JIAO Xinqian²

1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, P. R. China;
2. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, Changchun 130021, P. R. China;
3. Shenyang Geological Survey Center, China Geological Survey, Shenyang 110034, P. R. China

收稿日期:2018-04-02 出版日期:2018-08-01 发布日期:2018-06-26
通讯作者: JIAO Xinqian E-mail:jiaoxq@jlu.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China(No.41302184).

Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron

CUI Jian^1,3, WANG Ende¹, HOU Zhimin², ZHOU Rui², JIAO Xinqian²

1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, P. R. China;
2. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, Changchun 130021, P. R. China;
3. Shenyang Geological Survey Center, China Geological Survey, Shenyang 110034, P. R. China

Received:2018-04-02 Online:2018-08-01 Published:2018-06-26
Contact: JIAO Xinqian E-mail:jiaoxq@jlu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.41302184).

摘要/Abstract

摘要： Oil shale ash(OSA) supported nanoscaled zero-valent iron(OSA-nZVI) was used as a rapid and efficient reductant for Cr(VI) reduction. The optimal mass ratio of nZVI to OSA and the optimal dosage were explored. The effects of initial pH, reaction temperature, initial Cr(VI) concentration, and common cations and anions in groundwater on Cr(VI) reduction were determined in batch experiments. The results show that the optimum initial pH is 5.0. The reaction temperature has a positive effect on Cr(VI) reduction while the real groundwater has a negative effect. Additionally, 84.22% Cr(VI) was still reduced by 3 g/L OSA-nZVI(1:2)(mass ratio of OSA to Fe⁰ was 1:2) within 120 min for 50 mg/L Cr(VI) under conditions of 10℃ and unadjusted pH.

关键词: Oil shale ash, Nanoscaled zero-valent iron, Chromium(VI), Groundwater

Abstract: Oil shale ash(OSA) supported nanoscaled zero-valent iron(OSA-nZVI) was used as a rapid and efficient reductant for Cr(VI) reduction. The optimal mass ratio of nZVI to OSA and the optimal dosage were explored. The effects of initial pH, reaction temperature, initial Cr(VI) concentration, and common cations and anions in groundwater on Cr(VI) reduction were determined in batch experiments. The results show that the optimum initial pH is 5.0. The reaction temperature has a positive effect on Cr(VI) reduction while the real groundwater has a negative effect. Additionally, 84.22% Cr(VI) was still reduced by 3 g/L OSA-nZVI(1:2)(mass ratio of OSA to Fe⁰ was 1:2) within 120 min for 50 mg/L Cr(VI) under conditions of 10℃ and unadjusted pH.

Key words: Oil shale ash, Nanoscaled zero-valent iron, Chromium(VI), Groundwater

CUI Jian, WANG Ende, HOU Zhimin, ZHOU Rui, JIAO Xinqian. Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron[J]. 高等学校化学研究, 2018, 34(4): 546-551.

CUI Jian, WANG Ende, HOU Zhimin, ZHOU Rui, JIAO Xinqian. Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron[J]. Chemical Research in Chinese Universities, 2018, 34(4): 546-551.

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Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron

Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron

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