Electrochemical response to biomass of bacterial cells of Achromobacter sp. CH-1 growth  

Cr(VI)还原菌Achromobacter sp. CH-1生长量的电化学响应（英文）

作　　者：Yun-yan WANG Li-yuan CHAI Qing-wei WANG Zhi-hui YANG Rong DENG 王云燕;柴立元;王庆伟;杨志辉;邓荣(中南大学冶金与环境学院,长沙410083;中南大学国家重金属污染防治工程技术研究中心,长沙410083;长沙赛恩斯环保科技有限公司,长沙410000)

机构地区：[1]School of Metallurgy and Environment, Central South University, Changsha 410083, China [2]Chinese National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution,Changsha 410083, China [3]Changsha Science Environmental Technology Co., Ltd., Changsha 410000, China

出　　处：《Transactions of Nonferrous Metals Society of China》2017年第4期932-938,共7页中国有色金属学报（英文版）

基　　金：Projects(51304251,51504299)supported by the National Natural Science Foundation of China;Project(201509050)supported by Special Program on Environmental Protection for Public Welfare,China

摘　　要：A simple and effective method has been developed to reflect the growth of bacteria CH-1via the potential of the solution.The results indicate that during the bacterial cultivation,the biomass increases and the potential of the solution decreases over time.The relationship between biomass and potential of the solution could be expressed by the equation with constants of a and b whichare all related to species,batch,number,and growth environment of bacterial.When the initial pH value is10and the initial biomassis6.55×107cell/mL,the correlated equation of the biomass and the potential of the solution could be divided into two segments.Thegrowth of bacteria CH-1is different under various experimental conditions,but the biomass is directly related to the potential of thesolution regardless of the conditions of different initial pH values and bacteria number.溶液电势可简单有效地表征碱性介质中Cr(VI)还原菌Achromobacter sp.CH-1的生长情况。Achromobacter sp.CH-1培养过程中,溶液电势随着细菌数的增加而降低,溶液电势与细菌数对数呈线性相关,线性方程中常数a、b与细菌的种类、批量、数量和细菌的生长环境有关。初始p H为10、初始细菌数为6.55′107 cell/mL时培养CH-1菌,溶液电势与细菌数的对数值的相关曲线可分两段表征。不同初始pH与不同细菌数条件下CH-1菌的生长情况不同,但细菌的生长量与溶液电势直接相关。

关 键 词：electrochemical response CR(VI) bacteria CH-1 BIOMASS potential of solution 

分 类 号：X172[环境科学与工程—环境科学]