MODEL OF BIOELECTROCHEMICAL PROCESS FROM TWO CHAMBER MFC WITH BATCH SYSTEM

• Main Author: Sualing, Jimmy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/53964
• Institution: Institut Teknologi Bandung

In recent years, MFC has attracted researchers because it can generate electricity by utilizing waste. In order to optimize MFC performance, there are many factors to consider. Researches to optimize MFC performance from each variations of those factors will cost a lot of time and money. Therefore, the mathematical model offers an opportunity for researchers to get an understanding of the factors influence to MFC performance. Through a mathematical model, the effect of factors towards MFC performance can be interpreted without costing lot of time and money. In this experiment there are three main stages in the creation of mathematical model, namely literature study, model definition, and simulation. Two-chamber MFC modeling without flow uses a modified mathematical model of several past models, which are the mathematical model suggested by Zeng et al. (2010) and Oliveira et al. (2018). This model is used to simulate the effect of acetate conscentration as substrate in the anode chamber and microbial type on the maximum power density generated by the MFC. The results from the model shows effect from ohmic loss which also apparent in experiment results conducted by Suryaga (2017). However, the model only represents 16.13% of ohmic loss compared with the experiment. For optimal MFC performance, microorganisms with high value of yield and maximum growth rate also low decay rate are preferred. With an increase of 20% at each variable can give change to voltage at +25.07%, +25.07%, and -25.07% respectively. Optimum acetate concentration is 10 mM. An increase of acetate concentration beyond 10 mM only give an increase below 1% for the maximum power density.