抽象的

Analyzing corrosion rate and its reduction in a microbiologically contaminated cooling water

Hassan Tirandaz, Alireza Rahimi


Microbial contamination and corrosion rate of a cooling water system were analyzed three times in April, July, and October 2014. Microbial analyses and Biocide efficacy test were performed according to NACE standard TM 0194 and ASTM E645 standard, respectively. Weight loss measurementswere performed to determine the corrosion rate of simple carbon steel in water samples. General heterotrophic bacteria (GHB) and sulfatereducing bacteria (SRB) were observed in all water samples. Highest microbial contamination was observed in July which GHB and SRB counts were 106 and 102 per milliliter of water, respectively. Corrosion rate of April, July, and October samples were 3.5, 15, and 4.1 mpy that reduced to 1.7, 5.3,and 2.5 mpy respectively, after biocide application. The July sample required at least 30 ppm biocide, while the April and October samples, required 20 ppm biocide for effective results. The results not only demonstrated the importance of microbiologically influenced corrosion in the studied cooling water system but also revealed the importance of monthly biocide optimization in a particular system.


索引于

  • 中国社会科学院
  • 谷歌学术
  • 打开 J 门
  • 中国知网(CNKI)
  • 引用因子
  • 宇宙IF
  • 电子期刊图书馆
  • 研究期刊索引目录 (DRJI)
  • 秘密搜索引擎实验室
  • ICMJE

查看更多

期刊国际标准号

期刊 h 指数

Flyer