Influence of chemicals on biofilm removal in cooling water system
Microbial cells can attach onto the stainless steel surface in cooling water system and form biofilms which are harmful to the industrial equipments. In this study, biofilms formed on stainless steel with mixed bacterial were investigated by scanning electron microscopy (SEM) to discuss the biofilm transformation before and after treatment with chemicals. Oxidizing biocide (Tetrakishydrox -ymethyl phosphonium sulphate), non-oxidizing biocide (Sodium hypochlorite), and surfactant (sodium dodeccyl benzene sulfonate) were selected for biofilm treatment. SEM photos showed that the low-molecular weight biocide possessed penetration function and the oxidizing-biocide exhibited strong oxidation ability. Anionic surfactant could change the dimensional structure of biofilm and was helpful for further treatment.
biofilms cooling water system ozidizing biocide non-ozidizing biocide surfactant SEM
Ran Xu Haifeng Wang Fengting Li Jianhua Li Bingru Zhang Junlian Qiao
Key Laboratory of Yangtze River Water Environment, Ministry of Education College of Environmental Science and Engineering, Tongji University Shanghai, China
国际会议
上海
英文
1119-1122
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）