Abstract
In this study, the concept of Microbial Fuel Cells (MFCs) is applied in the biological cathodic protection (CP) system. MFCs are a promising technology for electricity production from a variety of materials. Impressed current cathodic protection (ICCP) was the tradition method used in corrosion control method. Biological CP uses the microbiological presence in wastewater to generate the electrons. The focus of this study is on the effect of organic waste towards the biological CP system. The selected organic wastes are orange peel and pineapple peel. The presence of starch and sugar in the organic waste are promote the microbial growth and increase the performance of biological CP system. The method used to prepare the substrate was based on the previous studies and the CP system was a single chamber system. Current and power density was calculated from the experimental data of the specific weight of substrates and the results was discussed in this study. The weight of substrate are manipulated for each experiment. The statistical analysis was done on the voltage potential output for the selected optimum substrate’s weight and the result was varies for each of organic waste used. The highest voltage potential output by the CP system was 920 mV (20 grams of orange peel) and 1046 mV (40 grams of pineapple peel).
Highlights
Petrochemical industry uses pipe as the distribution and transmission medium for gas product and for the storage of the component
Instead of using the organic chemical, this study introduces the organic waste as the food fruit peel waste, for the microorganism
The performance for single chamber of biological cathodic protection (CP) system were affected by the substrate, in this study organic waste is used
Summary
Petrochemical industry uses pipe as the distribution and transmission medium for gas product and for the storage of the component. In China, a study estimated that the cost of corrosion was approximately 310 billion USD, representing about 3.34% of the gross domestic product [3] This proves that corrosion in pipelines is a major problem in the industry and this problem will be worsen along the time if no action is taken to minimize the problem. The growth of electrogenic bacteria can be promoted by adding substrates which act like food for microorganism in the system This will enhance their function and able to control the corrosion in gas pipeline. Glucose and glycerol are commonly used as substrate in MFC system The composition of these organic chemicals consist of starch and sugar that promote the growth of microorganism in wastewater. In this study, statistical analysis was used to optimize the amount of substrate used in obtaining maximum power density of a single chamber biological CP
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