引用本文:崔晓倩,陈国栋,郑昊,等.水环境中莱茵衣藻对纳米氧化铜的吸附及离子溶出的影响[J].水资源保护,2020,36(6):117-121DOI:10.3880/j.issn.1004-6933.2020.06.019
CUI Xiaoqian,CHEN Guodong,ZHENG Hao,et al.Adsorption of Chlamydomonas reinhardtii to CuO-NPs and its effect on ion release in water environment[J].Water Resources Protection,2020,36(6):117-121.
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水环境中莱茵衣藻对纳米氧化铜的吸附及离子溶出的影响
崔晓倩1, 陈国栋2, 郑昊3, 李晓晨1
1.临沂首创博瑞水务有限公司, 山东 临沂 276021;2.山东农业大学水利与土木工程学院, 山东 泰安 271018;3.临沂首创环保发展有限公司, 山东 临沂 276002
摘要:以莱茵衣藻为研究对象,采用批量试验研究了莱茵衣藻对纳米氧化铜的吸附过程及其对自由金属离子溶出的影响。试验结果表明,莱茵衣藻对纳米氧化铜具有较强的吸附能力,吸附遵循Langmuir和Freundlich等温线模型和准二次动力学模型,最大吸附量为128 μg/106个藻细胞。莱茵衣藻的存在对自由金属离子溶出具有显著影响,低浓度的莱茵衣藻促进Cu2+溶出,高浓度的莱茵衣藻抑制Cu2+溶出。
关键词:  莱茵衣藻  纳米氧化铜  Cu2+离子  吸附  溶出  水环境
DOI:10.3880/j.issn.1004-6933.2020.06.019
基金项目:国家自然科学基金(41771502);山东省水利科技促进项目(SDSLKY201605)
Adsorption of Chlamydomonas reinhardtii to CuO-NPs and its effect on ion release in water environment
CUI Xiaoqian1, CHEN Guodong2, ZHENG Hao3, LI Xiaochen1
1.Linyi Shouchuangborui water Water Services Co., Ltd., Linyi 276021, China;2.College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Taian 271018, China;3.Linyi Shouchuang Environmental Protection Development Co., Ltd., Linyi 276002, China
Abstract:The adsorption process of Chlamydomonas reinhardtii to copper oxide nanoparticles(CuO-NPs)and its effect on free metal ion release were studied by batch experiments. The results show that Chlamydomonas reinhardtii has a strong adsorption capacity for CuO-NPs. The adsorption follows the Langmuir and Freundlich isotherm model and the quasi secondary kinetic model. The maximum adsorption capacity of is 128 μg per 106 algal cell. The existence of Chlamydomonas reinhardtii has a significant effect on the release of free metal ions. The low concentration of Chlamydomonas reinhardtii promotes the release of Cu2+, while the high concentration of Chlamydomonas reinhardtii inhibits the release of Cu2+.
Key words:  Chlamydomonas reinhardtii  copper oxide nanoparticles  Cu2+  adsorption  release  water environment

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