#TITLE_ALTERNATIVE#

• Main Author: (NIM 13004031), SURYADI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/11467
• Institution: Institut Teknologi Bandung

Corrosion in industrial installation may increase maintenance cost. Many researches show that microbiological induced corrosion (MIC) is more dangerous than mechanical damage or chemical corrosion.<p> <br /> <br /> <br /> <br /> <br /> One of the commonly used microbiological corrosion inhibitor is sodium hypochlorite. Sodium hypochlorite is also known as an inhibitor for bacteria metabolism. The objectives of this research are to study the effectiveness and to determine the optimum dosage of sodium hypochlorite as MIC inhibitor without producing environmental hazard.<p> <br /> <br /> <br /> <br /> <br /> This research is conducted by measurement of steel corrosion rate in natural seawater containing SRB and determination of SRB population in the immersion medium. The experimental variables are inhibitor concentration and immersion duration.<p> <br /> <br /> <br /> <br /> <br /> Based on X-ray Diffraction (XRD) analysis, the corrosion products consist of Fe(OH)2, FeOOH, Fe3O4, FeS, Fe(OH)3, Fe2O3, FeCl3 .5H2O, C8H2OBr3ClFeN. The corrosion forms are general and pitting corrosion. Based on these results, it can be concluded that sodium hypoclorite is not effective as MIC inhibitor of carbon steel and as biocide.