Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬)
Cr(VI)是土壤和水体中常见的有毒污染物，将Cr（VI）转化为毒性较低的Cr（Ⅲ)是常用而有效的治理方法.本文采用褐铁矿对水中Cr(Ⅵ)进行处理研究，考察了褐铁矿投加量、Cr（Ⅵ)初始浓度、pH值、反应温度、铁矿石粒径大小以及添加不同物质等因素对褐铁矿去除效果的影响.结果表明，褐铁矿对Cr(Ⅵ)有很好的还原去除效果，Cr(Ⅵ)去除效率随褐铁矿用量的增加而增大，随Cr(Ⅵ)初始浓度的增加而减小，pH值越低越有利于反应的进行.铁矿石颗粒的直径越小，比表面积越大，也对反应越有利，而温度对Cr(Ⅵ)的去除影响不大.100目的褐铁矿颗粒去除Cr(Ⅵ)的能力为7.77 mg Cr(Ⅵ)/g.使用褐铁矿不...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Zhejiang University Press
2008-11-01
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| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2008.06.016 |
| _version_ | 1797236138532929536 |
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| author | WUYan-jun(吴燕君) WANGQian(王倩) ZaidiHouda() ZHANGZhen(张珍) XUXin-hua(徐新华) |
| author_facet | WUYan-jun(吴燕君) WANGQian(王倩) ZaidiHouda() ZHANGZhen(张珍) XUXin-hua(徐新华) |
| author_sort | WUYan-jun(吴燕君) |
| collection | DOAJ |
| description | Cr(VI)是土壤和水体中常见的有毒污染物，将Cr（VI）转化为毒性较低的Cr（Ⅲ)是常用而有效的治理方法.本文采用褐铁矿对水中Cr(Ⅵ)进行处理研究，考察了褐铁矿投加量、Cr（Ⅵ)初始浓度、pH值、反应温度、铁矿石粒径大小以及添加不同物质等因素对褐铁矿去除效果的影响.结果表明，褐铁矿对Cr(Ⅵ)有很好的还原去除效果，Cr(Ⅵ)去除效率随褐铁矿用量的增加而增大，随Cr(Ⅵ)初始浓度的增加而减小，pH值越低越有利于反应的进行.铁矿石颗粒的直径越小，比表面积越大，也对反应越有利，而温度对Cr(Ⅵ)的去除影响不大.100目的褐铁矿颗粒去除Cr(Ⅵ)的能力为7.77 mg Cr(Ⅵ)/g.使用褐铁矿不仅可以将Cr（Ⅵ)还原为Cr（Ⅲ)，还能将Cr(Ⅵ)彻底从水中去除. |
| first_indexed | 2024-04-24T16:59:05Z |
| format | Article |
| id | doaj.art-53daacc9d6824153a0c5544be8e138e8 |
| institution | Directory Open Access Journal |
| issn | 1008-9497 |
| language | zho |
| last_indexed | 2024-04-24T16:59:05Z |
| publishDate | 2008-11-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | Zhejiang Daxue xuebao. Lixue ban |
| spelling | doaj.art-53daacc9d6824153a0c5544be8e138e82024-03-29T01:58:26ZzhoZhejiang University PressZhejiang Daxue xuebao. Lixue ban1008-94972008-11-0135665966310.3785/j.issn.1008-9497.2008.06.016Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬)WUYan-jun(吴燕君)0WANGQian(王倩)1ZaidiHouda()2ZHANGZhen(张珍)3XUXin-hua(徐新华)4Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学环境工程系，浙江 杭州 310027)Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学环境工程系，浙江 杭州 310027)Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学环境工程系，浙江 杭州 310027)Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学环境工程系，浙江 杭州 310027)Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学环境工程系，浙江 杭州 310027)Cr(VI)是土壤和水体中常见的有毒污染物，将Cr（VI）转化为毒性较低的Cr（Ⅲ)是常用而有效的治理方法.本文采用褐铁矿对水中Cr(Ⅵ)进行处理研究，考察了褐铁矿投加量、Cr（Ⅵ)初始浓度、pH值、反应温度、铁矿石粒径大小以及添加不同物质等因素对褐铁矿去除效果的影响.结果表明，褐铁矿对Cr(Ⅵ)有很好的还原去除效果，Cr(Ⅵ)去除效率随褐铁矿用量的增加而增大，随Cr(Ⅵ)初始浓度的增加而减小，pH值越低越有利于反应的进行.铁矿石颗粒的直径越小，比表面积越大，也对反应越有利，而温度对Cr(Ⅵ)的去除影响不大.100目的褐铁矿颗粒去除Cr(Ⅵ)的能力为7.77 mg Cr(Ⅵ)/g.使用褐铁矿不仅可以将Cr（Ⅵ)还原为Cr（Ⅲ)，还能将Cr(Ⅵ)彻底从水中去除.https://doi.org/10.3785/j.issn.1008-9497.2008.06.016六价铬去除重金属褐铁矿 |
| spellingShingle | WUYan-jun(吴燕君) WANGQian(王倩) ZaidiHouda() ZHANGZhen(张珍) XUXin-hua(徐新华) Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬) Zhejiang Daxue xuebao. Lixue ban 六价铬 去除 重金属 褐铁矿 |
| title | Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬) |
| title_full | Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬) |
| title_fullStr | Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬) |
| title_full_unstemmed | Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬) |
| title_short | Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬) |
| title_sort | cr vi reduction in aqueous solutions by limonite 褐铁矿处理水中六价铬 |
| topic | 六价铬 去除 重金属 褐铁矿 |
| url | https://doi.org/10.3785/j.issn.1008-9497.2008.06.016 |
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