@article{MAKHILLJEAS20149413429,
    title = {Cow Urine Effectiveness in Control of Microbially Induced Corrosion on Oil Transmission Pipelines},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {9},
    number = {4},
    pages = {92-96},
    year = {2014},
    issn = {1816-949x},
    doi = {jeasci.2014.92.96},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2014.92.96},
    author = {C. Okonkwo and},
    keywords = {Cow urine,microbial corrosion,corrosion rat,biocide,Nigeria},
    abstract = {This study investigated the effectiveness of the use of cow 
  urine in the control of microbially induced corrosion in oil transmission pipelines. 
  Hydrogenase test was carried out and used to detect the presence of micro-organisms 
  that cause corrosion in the pipeline samples. The cow urine biocide was subjected 
  to urinalysis test after which it was characterized. The biocides were then 
  subjected to experimentation to ascertain how effective they can be in reducing 
  microbial corrosion using coupons filled with bacterial cultured agar. Weight 
  loss and the corrosion rate of the samples were determined at weekly intervals 
  throughout the duration of the experiment. The results show that cow urine coupon 
  witnessed the least weight loss amounting to 0.9 g throughout the duration of 
  the experiment. The other biocides formaldehyde, polyamine, diamine and biguanide 
  have weight loss of 6.6, 5.8, 6.81 and 1.2 g, respectively. The 5 polynomial 
  equations were formulated for weight loss for each of the biocides. R<SUP>2</SUP> 
  goodness-of-fit statistical technique was employed in the analysis for future 
  predictions from the model and the R<SUP>2</SUP> values obtained in each case 
  is close to 1 which indicates a good measure that future outcomes are very likely 
  to be predicted well by the obtained polynomial equations. Results also show 
  that cow urine has an average corrosion rate of 0.0686 mm year<SUP>-1</SUP>, 
  as against the formaldehyde, polyamine, diamine and biguanide which have on 
  the average 1.687, 1.7817, 1.8004 and 0.2225 mm year<SUP>-1</SUP> corrosion 
  rates, respectively. Hence, it can be concluded that cow urine is the most potent 
  biocide followed by biguanide out of the rest treated in this study for microbial 
  corrosion.}
    }