Influence of bacteria on Pb and Zn speciation, mobility and bioavailability in soil: A laboratory study
文献类型：期刊论文
| 作者 | Wu, S. C.; Luo, Y. M.; Cheung, K. C.; Wong, M. H. |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 144期号:3页码:765-773 |
| ISSN号 | 0269-7491 |
| 关键词 | bacterial inoculation metal bioavailability metal mobility metal speciation soil column |
| DOI | 10.1016/j.envpol.2006.02.022 |
| 通讯作者 | Wong, M. H.(mhwong@hkbu.edu.hk) |
| 英文摘要 | A soil column experiment was carried out to investigate the effects of inoculation of bacteria on metal bioavailability, mobility and potential leachability through single chemical extraction, consequential extraction and in situ soil solution extraction technologies. Results showed that bacteria inoculated, including Azotobacter chroococcum, Bacillus megaterium and Bacillus mucilaginosus, may pose both positive and negative impacts on bioavailability and mobility of heavy metals in soil, depending on the chemical nature of the metals. The activities of bacteria led to an increase of water dissolved organic carbon (DOC) concentration and a decrease of pH value, which enhanced metal mobility and bioavailability (e.g. an increase of water-soluble and HOAc-soluble Zn). On the other hand, bacteria could immobilize metals (e.g. a great reduction of water-soluble Pb) due to the adsorption by bacterial cell walls and possible sedimentation reactions with phosphate or other anions produced through bacterial metabolism. (c) 2006 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | CONTAMINATED SOILS ; SEWAGE-SLUDGE ; HEAVY-METALS ; MICROORGANISMS ; ZINC ; LEAD ; CD ; EXTRACTABILITY ; TAILINGS ; ELEMENTS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000241252600008 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558585 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Wong, M. H. |
| 作者单位 | 1.Hong Kong Baptist Univ, Croucher Inst Environm Sci, Hong Kong, Hong Kong, Peoples R China 2.Hong Kong Baptist Univ, Dept Biol, Hong Kong, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, S. C.,Luo, Y. M.,Cheung, K. C.,et al. Influence of bacteria on Pb and Zn speciation, mobility and bioavailability in soil: A laboratory study[J]. ENVIRONMENTAL POLLUTION,2006,144(3):765-773. |
| APA | Wu, S. C.,Luo, Y. M.,Cheung, K. C.,&Wong, M. H..(2006).Influence of bacteria on Pb and Zn speciation, mobility and bioavailability in soil: A laboratory study.ENVIRONMENTAL POLLUTION,144(3),765-773. |
| MLA | Wu, S. C.,et al."Influence of bacteria on Pb and Zn speciation, mobility and bioavailability in soil: A laboratory study".ENVIRONMENTAL POLLUTION 144.3(2006):765-773. |
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来源：南京土壤研究所
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