| 改性灰岩除氟的实验研究 |
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| 引用本文： | 郭朝斌,孙婷婷,郑炎松,马自强,白露,吴桂松,刘琼,郭华明.改性灰岩除氟的实验研究[J].环境科学与技术,2011,34(8):89-94. |
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| 作者姓名： | 郭朝斌 孙婷婷 郑炎松 马自强 白露 吴桂松 刘琼 郭华明 |
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| 作者单位： | 中国地质大学(北京)水资源与环境学院,北京,100083 |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目(NCE-070770); 国家水体污染控制与治理科技重大专项(2009ZX07425-006) |
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| 摘 要： | 采用改性灰岩作为除氟材料,通过批实验和柱实验,考察不同条件下的除氟效果,并探讨了其实际应用的可能性。结果表明:FeCl3溶液联合灰岩除氟,可使高氟水中的氟浓度达到国家饮用水标准,在含氟水样中加灰岩后,直接加FeCl3会促进灰岩对氟的去除效率。在氟离子浓度为5 mg/L,粒径0.2～0.5 mm的灰岩为1 g的条件下,铁离子含量为0.016 mmol/L时,即可达到去除的最佳效果,除氟率可达95.74%。柱实验说明在FeCl3溶液浓度一定时,除氟率随着总出水量的增加而提高;填充的灰岩总量不变时,随着FeCl3溶液浓度的增加,除氟效果明显增加,说明本实验具有实际应用的可能性。
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| 关 键 词： | 灰岩 氯化铁 灼烧 柱实验 除氟 |
Fluoride Removal by Modified Limestone |
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| GUO Chao-bin,SUN Ting-ting,ZHENG Yan-song,MA Zi-qiang,BAI Lu,WU Gui-song,LIU Qiong,GUO Hua-ming.Fluoride Removal by Modified Limestone[J].Environmental Science and Technology,2011,34(8):89-94. |
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| Authors: | GUO Chao-bin SUN Ting-ting ZHENG Yan-song MA Zi-qiang BAI Lu WU Gui-song LIU Qiong GUO Hua-ming |
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| Affiliation: | GUO Chao-bin,SUN Ting-ting,ZHENG Yan-song,MA Zi-qiang,BAI Lu,WU Gui-song,LIU Qiong,GUO Hua-ming(School of Water Resource and Environment,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | Modified limestone is used as adsorbent for defluoridation.Batch and column experiments were done to investigate F-removal by modified materials under different conditions.Results showed that the system of ferric chloride and limestone has a good capacity for F-removal from aqueous solution,with the treated water satisfactory to national drinking water standards.Addition of FeCl3 enhances F-removal by limestone.The removal efficiency is up to 95.74% in the batch with initial F-concentration of 5.0 mg/L,lime... |
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| Keywords: | limestone ferric chlorides sintering column test defluorination |
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