#TITLE_ALTERNATIVE#

• Main Author: D P BATUBARA , PATUAN
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/16808
• Institution: Institut Teknologi Bandung

This study aimed to several things including the Microbiological Influenced Corrosion (MIC). The problems discussed in this research one of which is corrosion <br /> <br /> <br /> <br /> <br /> damage caused by a consortium of Alicyclobacillus ferrooxidans and Aspergillus sp. and bacteria Comamonas testeroni. In this study also discussed the influence of <br /> <br /> <br /> <br /> <br /> exposure time and the use of biofilms formed by Pseudomonas putida strain SKCSH 7 to weight loss of specimens and the damage. In addition, be confirmed fungal genus in which consortium with Alicyclobacillus ferrooxidans and its role in the corrosion. <br /> <br /> <br /> <br /> <br /> In this research used 8 specimens that have parameter types of bacteria, the time and use of biofilm. Later in the analysis is done through the characterization of corrosion products using Scanning Electron Microscopy (SEM) and Energy dispersive X-Ray Spectroscopy (EDX) and method of Inorganic Qualitative Analysis and X-Ray Diffraction (XRD), calculation of weight loss and analysis of morphological damage to the specimen surface using Scanning Electron Microscopy (SEM). From this test has been analyzed it was found that the mechanism of corrosion damage caused by Alicyclobacillus ferrooxidans and Aspergillus sp. and bacteria Comamonas testosteroni is shown by pitting the surface morphology and crosssectional specimens. In addition, a long exposure time by not using a biofilm of <br /> <br /> <br /> <br /> <br /> Pseudomonas putida strain SKCSH 7 resulted in a greater weight loss than others. <br /> <br /> <br /> <br /> <br /> This is shown in the medium Alicyclobacillus ferrooxidans specimens that do not use a long exposure biofilms with 3 weeks of experiencing the greatest reduction of 2.767 mg/cm2. While the smallest reduction is shown in specimens exposed to the medium Comamonas testosteroni using biofilms with long exposure 1 week experienced the smallest reduction of 0.467 mg/cm2.