#TITLE_ALTERNATIVE#

• Main Author: ANDRIANI (NIM 23005008), DESY
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/7594
• Institution: Institut Teknologi Bandung

Brass is often used as construction material of seawater handling equipments. Brass corrosion in seawater containing sulphate reducing bacteria (SRB) can disturb plant operation and cause a major economical loss. Consequently, brass microbial corrosion should be controlled.<p> <br /> <br /> <br /> One of microbial corrosion control methods is inhibitor addition. The inhibitors used in this research were Glutaraldehyde, Sodium Benzoate, and Potassium Vanadate due to their famous ability to inhibit bacteria's metabolism. This research was conducted to evaluate the effectiveness of those three inhibitors in reducing microbial brass corrosion in seawater.<p> <br /> <br /> <br /> To fulfill that objective, this research was carried out by measuring the brass corrosion rate in seawater containing SRB and the SRB population in immersion medium. The variables used in this research were the type of inhibitors and the duration of immersion period.<p> <br /> <br /> <br /> Corrosion rate measurement showed that brass is corroded in seawater containing SRB during 9 weeks immersion. All of three tested inhibitors are able to inhibit microbial corrosion of brass in seawater for 9 weeks immersion, but it has increased the corrosion rate at the initial period of immersion. The SRB population has been increased with the addition of each kind of inhibitors, consecutively in descending order: Potassium Vanadate, Glutaraldehyde, and Sodium Benzoate.