yella ginsengisoli LA-4吸附Cu2+特性及其动力学研究
Removal of Cu2+ by Dyella ginsengisoli LA-4 Using Response Surface Methodology and Adsorption Characteristics
采用一种新型吸附菌剂 Dyella ginsengisoli LA-4，研究其对重金属Cu2+的吸附去除能力，利用表面响应法优化菌株LA-4对Cu2+的去除条件，包括菌株LA-4的接种量、pH、Cu2+浓度，并分析其动力学特性及吸附等温线。结果表明，菌株LA-4去除Cu2+的最优条件为接种量2.37 g/L，pH 5.16，Cu2+浓度为98.65 mg/L，菌株LA-4对Cu2+的最大去除率为86.04%。吸附动力学表明菌株LA-4对Cu2+的吸附分为两个阶段，第一阶段以吸附和离子交换为主，第二阶段以化学吸附为主，生物吸附平衡时间约为30 min。吸附过程符合Langmuir模型，最大吸附量为112.36 (mg/g)。
he capacity to biosorb heavy metal ions by whole cell of Dyella ginsengisoli LA-4 was investigated. The optimal conditions for removal metal ion were designed by response surface methodology (RSM). The optimal removal conditions were found to be 2.37g/L for strain LA-4, pH 5.16, Cu2+ concentration 98.65 mg/L, and the removal rate was 86.04%. The biosorption equilibrium was conformed to the Langmuir biosorption isotherms. The maximum Cu2+ adsorbed was found to be 112.36 (mg/g).
曲媛媛、严滨、时胜男、靳奇峰、焦庆祝
环境污染、环境污染防治生物科学现状、生物科学发展生物科学研究方法、生物科学研究技术
生物吸附u2+表面相应法吸附等温线
Biosorptionu2+Response surface methodologyEquilibrium isotherm
曲媛媛,严滨,时胜男,靳奇峰,焦庆祝.yella ginsengisoli LA-4吸附Cu2+特性及其动力学研究[EB/OL].(2010-02-04)[2025-08-25].http://www.paper.edu.cn/releasepaper/content/201002-228.点此复制
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