期刊论文

Ren, Z.(renzhandong@163.com)

中文

化工学报

0438-1157

2009

60

10

2583-2589

国家自然科学基金项目(60736042)； 湖北省教育厅科学研究项目(B20091801)~~；

本校为第一且通讯机构

利用自制三室型电解槽制备氧化电解水(EOW),对自制铱氧化物电极进行了XRD、SEM表征和电化学分析.以枯草杆菌黑色变种芽孢(ATCC9372)为杀灭对象,考察了影响EOW杀菌作用的3个因素,即有效氯(ACC)、氧化还原电位(ORP)和pH值.结果表明,ACC值越高,EOW的杀菌效率越高,当ACC值大于40 mg·L~(-1)时,杀菌效率进一步提高缓慢,最大杀菌率为99.89%,杀灭对数值为2.67lgcfu·ml~(-1).EOW中有效氯存在形式以HClO为主,这也是EOW具有高效杀菌作用的原因.随ORP值增加,杀菌效率也随之增加,但当其大于1100 mV后,杀菌率和杀灭对数值进一步增加较少,可分别达到99.99%和3.86lgcfu·ml~(-1).pH值本身对杀菌效率影响很小,但...

An electrolytic cell with three segments was used to make electrolyzed-oxidizing water (EOW), and the IrO2 electrode was characterized by XRD, SEM and electrochemical analysis. Three impact factors for the sterilization, i.e. the available chlorine content (ACC), the redox potential (ORP) and the pH value, were investigated in killing Bacillus subtilis var. niger (ATCC9372). It was found that the higher the ACC value, the higher the sterilizing efficiency. When the ACC value in EOW is higher than 40 mg&middotL-1, the sterilizing efficiency improves slowly, where the maximum sterilization ratio...