| 海洋巨藻生物吸附剂对Hg~(2 )吸附性能的研究 |
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| 引用本文： | 马卫东,顾国维,QinmingYu.海洋巨藻生物吸附剂对Hg~(2 )吸附性能的研究[J].上海环境科学,2001(10). |
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| 作者姓名： | 马卫东 顾国维 QinmingYu |
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| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室,同济大学污染控制与资源化研究国家重点实验室,格里菲斯大学环境工程学院 上海 200092,上海 200092,布里斯班,澳大利亚 QLD 4111 |
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| 基金项目： | Australian Research Council资助项目。 |
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| 摘 要： | 就丰产廉价的海洋巨藻(Durvillaea Potatorum)所制的生物吸附剂对Hg2 的吸附性能进行了研究,该生物吸附剂经特殊的稳定化预处理而得。研究表明,该生物吸附剂的Hg2 吸附容量对溶液的pH值十分敏感,在pH=3时,最大吸附容量达到3.1mmol/g(干重),在溶液pH=0.4～5.0的范围内,Hg2 的吸附容量为0.49—3.1mmol/g(干重);溶液中的C1-能显著地降低生物吸附剂对Hg2 的吸附容量;其对Hg2 的去除率可达到99％以上。该生物吸附剂可以有效地去除工业废水中的Hg2 。
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| 关 键 词： | 海洋巨藻 重金属生物吸附 汞离子 吸附性能 废水处理 |
Study on Hg" Adsorption Capability of Biosorbent from Marine Alga Durvillaea Potatorum |
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| Ma Weidong Yu Qinming Gu Guowei.Study on Hg" Adsorption Capability of Biosorbent from Marine Alga Durvillaea Potatorum[J].Shanghai Environmental Science,2001(10). |
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| Authors: | Ma Weidong Yu Qinming Gu Guowei |
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| Abstract: | The adsorption capability of Hg2 by a low-cost biosorbent from marine alga Durvillaea potatorum has been studied. The biosorbent was a pre-treated biomass of D. potatorum with a particular process. It was found that the adsorption capacities were sensitive to the solution pH and the maximum adsorption capacity of the biosorbent for Hg2 was up to 3.1mmol/g (dry) at pH about 3. The adsorption capacities ranged from 0.49-3.1 mmol/g (dry) within pH range of 0.4-5.0 and were substantially reduced when Cl" existed in the solution. Hg2 removal proportion reached more than 99%. The results showed that the biosobent could be used as an effective medium for removal and recovery of Hg2 from industrial wastewater. |
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| Keywords: | Marine alga Biosorption of heavy metals Mercury ion Mercury adsorption capability Wastewater treatment |
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