Removing cadmium from electroplating wastewater by waste saccharomyces cerevisiae
查看参考文献18篇
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文摘
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The appropriate condition and scheme of removing cadmium from electroplating wastewater were investigated by adsorption-precipitation method using waste saccharomyces cerevisiae(WSC) as sorbent. Effect factors on biosorption of cadmium in cadmium-containing electroplating wastewater by waste saccharomyces cerevisiae and precipitation process of waste saccharomyces cerevisiae after adsorbing cadmium were studied. The results show that removal rate of cadmium is over 88% after 30 min adsorbing under the condition of cadmium concentration 26 mg/L, the dosage of waste saccharomyces cerevisiae 16.25 g/L, temperature 18 ℃, pH 6.0 and precipitation time 4 h. Biosorption-precipitation method is effective to remove cadmium in cadmium-containing electroplating wastewater by waste saccharomyces cerevisiae. The SEM, infrared spectroscopy and Zeta-potential of the cells show that chemical chelating is the main adsorption form; electrostatic attraction, hydrogen bonding and van der Waals force all function in adsorption process; and ―NH_2―,―C=O―,―C=O―NH―,―CH_3, ―OH are the main adsorption groups. |
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来源
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Transactions of Nonferrous Metals Society of China
,2008,18(4):1008-1013 【核心库】
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DOI
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10.1016/s1003-6326(08)60173-9
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关键词
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electroplating wastewater
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waste saccharomyces cerevisiae
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cadmium biosorption
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地址
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School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1003-6326 |
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学科
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矿业工程 |
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基金
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国家自然科学基金
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Project (20042021) supported by the Natural Scinece Foundation of Liaoning Province, China
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辽宁省高科技计划项目
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文献收藏号
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CSCD:3330905
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