Characterization of Chromium Waste Form Based on Biocementation by Microbacterium sp GM-1
文献类型：期刊论文
| 作者 | Lun, Limei1; Li, Dongwei1; Yin, Yajie2 ; Li, Dou3; Xu, Guojing1; Zhao, Ziqiang1; Li, Shan1
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| 刊名 | INDIAN JOURNAL OF MICROBIOLOGY
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| 出版日期 | 2016-09-01 |
| 卷号 | 56期号:3页码:353-360 |
| 关键词 | Chromiun slag Cr(VI) Biorecementation Calcium carbonate Waste form |
| ISSN号 | 0046-8991 |
| DOI | 10.1007/s12088-016-0579-3 |
| 通讯作者 | Li, DW (reprint author), Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China. |
| 英文摘要 | This paper demonstrated a biocementation technology for chromium slag by strain GM-1, a calcifying ureolytic bacterium identified as Microbacterium, based on microbially induced calcium carbonate. The characterization of Microbacterium sp. GM-1 was assessed to know the growth curve in different concentrations of Cr(VI). Microbacterium sp. GM-1 was tolerant to a concentration of 120 mg/L Cr(VI). Chromium waste forms were prepared using chromium, sand, soil and bacterial culture. There we had three quality ratios (8:2:1; 8:1:1; 8:2:0.5) of material (chromium, sand and soil, respectively). Bacterial and control chromium waste forms were analyzed by thermal gravimetric analyzer. All bacterial forms (8:2:1; 8:1:1; 8:2:0.5 J) showed sharp weight loss near the decomposition temperature of calcium carbonate between 600 and 700 A degrees C. It indicated that the efficient bacterial strain GM-1 had induced calcium carbonate precipitate during bioremediation process. A five step Cr(VI) sequential extraction was performed to evaluate its distribution pattern in chromium waste forms. The percentage of Cr(VI) was found to significantly be decreased in the exchangeable fraction of chromium waste forms and subsequently, that was markedly increased in carbonated fraction after biocementation by GM-1. Further, compressive strength test and leaching test were carried out. The results showed that chromium waste forms after biocementation had higher compressive strength and lower leaching toxicity. Additionally, the samples made of 8:1:1 (m/m/m) chromium + sand + soil were found to develop the highest compressive strength and stand the lowest concentration of Cr(VI) released into the environment. |
| URL标识 | 查看原文 |
| 资助项目 | Natural Science Foundation of China[51274262] ; Natural Science Foundation of China[31300025] ; Chongqing Science & Technology Commission[cstc2014jcyjA20003] ; Chinese academy of sciences |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000378709900013 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/2629]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Li, Dongwei |
| 作者单位 | 1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Yuanda Grp CPI Yuanda Environm Protect Engn CO LT, Chongqing 401122, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lun, Limei,Li, Dongwei,Yin, Yajie,et al. Characterization of Chromium Waste Form Based on Biocementation by Microbacterium sp GM-1[J]. INDIAN JOURNAL OF MICROBIOLOGY,2016,56(3):353-360. |
| APA | Lun, Limei.,Li, Dongwei.,Yin, Yajie.,Li, Dou.,Xu, Guojing.,...&Li, Shan.(2016).Characterization of Chromium Waste Form Based on Biocementation by Microbacterium sp GM-1.INDIAN JOURNAL OF MICROBIOLOGY,56(3),353-360. |
| MLA | Lun, Limei,et al."Characterization of Chromium Waste Form Based on Biocementation by Microbacterium sp GM-1".INDIAN JOURNAL OF MICROBIOLOGY 56.3(2016):353-360. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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