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细菌吸附Pt4+的研究

Abstract

微生物吸附金属是指利用活的或者死的微生物细胞及来自微生物的产物,通过物理、化学作用吸附金属的过程。微生物吸附金属已被人们知道了几十年,近年来因其在环保和贵金属回收中的应用潜力,愈加受到重视。利用微生物吸附金属的特性回收贵金属已被认为是现有金属回收技术中的一种很有经济价值的替代技术。本文报道一株吸附铂离子能力较强的菌株XP05的分离筛选以及死的XP05菌体及其固定化菌体吸附铂的一些特性。 从矿区及首饰厂环境中分离的和实验室保存的细菌菌株中,筛选得到一株吸附Pt4+能力较强的菌株XP05,经鉴定为弗劳地柠檬酸杆菌(Citrobacterfreudii)。 通过比较不同菌龄的菌体吸附Pt4+的能...The biosorption process of metals by microbe is a physico-chemical interaction between metals and the charged surface groups of micro-organisms, including living or dead microbial cells and derived microbial products. It has been known for a few decades and has received more attention in recent years because of its potential application in environmental protection and recovery of precious metals. ...学位:理学硕士院系专业:生命科学学院生物学系_微生物学学号:19992601

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