| Adsorption kinetics of Pb and Cd by two plant growth promoting rhizobacteria | |
| Wu, S. C.1,2; Peng, X. L.1,2; Cheung, K. C.1,2; Liu, S. L.3; Wong, M. H.1,2 | |
| 刊名 | BIORESOURCE TECHNOLOGY
 |
| 2009-10-01 | |
| 卷号 | 100期号:20页码:4559-4563 |
| 关键词 | Adsorption Bacteria Heavy metals ion Medal binding capacity |
| ISSN号 | 0960-8524 |
| DOI | 10.1016/j.biortech.2009.04.037 |
| 通讯作者 | Wong, M. H.(mhwong@hkbu.edu.hk) |
| 英文摘要 | A bench study was carried Out to characterize the kinetics of two plant growth promoting rhizobacteria (PGPR) Azotobacter chroococcum and Bacillus megaterium to adsorb heavy metals from Solution. Adsorption of Ph(2+) and Cd(2+) by bacterial cells was processed quickly with all equilibration achieved within 5 min. The adsorptions were fitted well with Freundlich and Langmuir isotherm models. The comparison of isotherm parameters indicated that A. chroococcum had a stronger capacity to bind metal ions than B. megaterium, with an average increase of 59.8% for Pb(2+) and 75.6% for Cd(2+) respectively. Both bacteria had a stronger affinity to Pb(2+) than Cd(2+) since Pb(2+) was more easily bound with the phosphoryl groups on the cell surface than Cd(2+). This demonstrated that the presence of bacteria in the rhizosphere may result ill the reduction of mobile ions in soil solution. (C) 2009 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | PSEUDOMONAS-AERUGINOSA ; BINDING-SITES ; HEAVY-METALS ; SORPTION ; SOIL ; LIPOPOLYSACCHARIDE ; SEEDLINGS ; TOXICITY ; SURFACES |
| WOS研究方向 | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| WOS类目 | Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000268376100004 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558809 |
| 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 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, S. C.,Peng, X. L.,Cheung, K. C.,et al. Adsorption kinetics of Pb and Cd by two plant growth promoting rhizobacteria[J]. BIORESOURCE TECHNOLOGY,2009,100(20):4559-4563. |
| APA | Wu, S. C.,Peng, X. L.,Cheung, K. C.,Liu, S. L.,&Wong, M. H..(2009).Adsorption kinetics of Pb and Cd by two plant growth promoting rhizobacteria.BIORESOURCE TECHNOLOGY,100(20),4559-4563. |
| MLA | Wu, S. C.,et al."Adsorption kinetics of Pb and Cd by two plant growth promoting rhizobacteria".BIORESOURCE TECHNOLOGY 100.20(2009):4559-4563. |
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