Sorption and desorption of Cu and Cd by macroalgae and microalgae
文献类型：期刊论文
| 作者 | Zhou, JL ; Huang, PL; Lin, RG
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 1998 |
| 卷号 | 101期号:1页码:67-75 |
| 关键词 | Biosorption Macroalgae Microalgae Copper Cadmium |
| ISSN号 | 0269-7491 |
| 文献子类 | Article |
| 英文摘要 | The sorption and desorption of Cu and Cd by two species of brown macroalgae and five species of microalgae were studied. The two brown macroalgae, Laminaria japonica and Sargassum kjellmanianum, were found to have high capacities at pHs between 4.0 and 5.0 while for microalgae, optimum pH lay at 6.7. The presence of other cations in solution was found to reduce the sorption of the target cation, suggesting a competition for sorption sites on organisms. Sorption isotherms obeyed the Freundlich equation, suggesting involvement of a multiplicity of mechanisms and sorption sites. For the microalgae tested, Spirulina platensis had the highest capacity for Cd, followed by Nannochloropsis oculata, Phaeodactylum tricornutum, Platymonas cordifolia and Chaetoceros minutissimus. The reversibility of metal sorption by macroalgae was examined and the results show that both HCl and EDTA solutions were very effective in desorbing sorbed metal ions from macroalgae, with up to 99.5% of metals being recovered. The regenerated biomass showed undiminished sorption performance for the two metals studied, suggesting the potential of such material for use in water and wastewater treatment. (C) 1998 Elsevier Science Ltd. All rights reserved.; The sorption and desorption of Cu and Cd by two species of brown macroalgae and five species of microalgae were studied. The two brown macroalgae, Laminaria japonica and Sargassum kjellmanianum, were found to have high capacities at pHs between 4.0 and 5.0 while for microalgae, optimum pH lay at 6.7. The presence of other cations in solution was found to reduce the sorption of the target cation, suggesting a competition for sorption sites on organisms. Sorption isotherms obeyed the Freundlich equation, suggesting involvement of a multiplicity of mechanisms and sorption sites. For the microalgae tested, Spirulina platensis had the highest capacity for Cd, followed by Nannochloropsis oculata, Phaeodactylum tricornutum, Platymonas cordifolia and Chaetoceros minutissimus. The reversibility of metal sorption by macroalgae was examined and the results show that both HCl and EDTA solutions were very effective in desorbing sorbed metal ions from macroalgae, with up to 99.5% of metals being recovered. The regenerated biomass showed undiminished sorption performance for the two metals studied, suggesting the potential of such material for use in water and wastewater treatment. (C) 1998 Elsevier Science Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000075884600008 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2867]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Univ Wales, Sch Ocean Sci, Menai Bridge LL59 5EY, Anglesey, Wales 2.Acad Sinica, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, JL,Huang, PL,Lin, RG. Sorption and desorption of Cu and Cd by macroalgae and microalgae[J]. ENVIRONMENTAL POLLUTION,1998,101(1):67-75. |
| APA | Zhou, JL,Huang, PL,&Lin, RG.(1998).Sorption and desorption of Cu and Cd by macroalgae and microalgae.ENVIRONMENTAL POLLUTION,101(1),67-75. |
| MLA | Zhou, JL,et al."Sorption and desorption of Cu and Cd by macroalgae and microalgae".ENVIRONMENTAL POLLUTION 101.1(1998):67-75. |
入库方式： OAI收割
来源：海洋研究所
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