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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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椭圆小球藻(Chlorellaellipsoidea)对4种重金属的耐受性及富集
DOI: 10.18307/20010209
Keywords: 椭圆小球藻,重金属,耐受性,富集
Abstract:
分离筛选获得了一株高重金属抗性的椭圆小球藻(Chlorellaellipsoidea),并研究了不同浓度的重金属铜、锌、镍、镉对该藻生长和叶绿素a含量的影响及其对重金属离子的吸收富集作用.结果显示,该藻对Zn2+和Cd2+具有很高的耐受性.对四种重金属的耐受能力依次为锌>镉>镍>铜.其叶绿素a含量与重金属离子浓度呈明显负相关.该藻对重金属具有很好的去除效果,经15μmol/LCu2+、300μmol/LZn2+、100μmol/LNi2+、30μmol/LCd2+浓度72h处理,去除率分别达到40.93%、98.33%、97.62%、86.88%,可应用于含重金属废水的处理
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