Removal of Chromium(VI) from Groundwater Using Oil Shale Ash Supported Nanoscaled Zero-valent Iron
查看参考文献31篇
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文摘
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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(l:2Xmass ratio of OSA to Fe~0 was 1:2) within 120 min for 50 mg/L Cr(VI) under conditions of 10 ℃ and unadjusted pH. |
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来源
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Chemical Research in Chinese Universities
,2018,34(4):546-551 【核心库】
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DOI
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10.1007/s40242-018-8104-3
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关键词
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Oil shale ash
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Nanoscaled zero-valent iron
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Chromium(VI)
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Groundwater
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地址
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1.
School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819
2.
Shenyang Geological Survey Center, China Geological Survey, Shenyang, 110034
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College of Environment and Resources, Jilin University, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Changchun, 130021
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1005-9040 |
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学科
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化学 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:6309019
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