TY - JOUR
T1 - Study of electrode modification and microbial concentration for microbial fuel cell effectivity from molasses waste and reduction of heavy metal Cr (VI) by continue dual chamber reactor
AU - Nuryana, I. F.
AU - Puspitasari, R.
AU - Juliastuti, S. R.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2020/5/26
Y1 - 2020/5/26
N2 - The rapid growth of textile industry has resulted in increasing amounts of heavy metal chromium waste. Metal waste production reaches 80% of the total amount of water used in the batik process. Microbial Fuel Cell (MFC) is a promising alternative because of its ability to reduce metal waste Cr6+ while processing organic waste and producing bioelectric. In addition, molasses still contain 50-60% sugar which has the potential to be degraded. Shewanella oneidensis MR-1 was used in this research due to its high productivity. MFC used dual chamber continue to optimize the process. The objective of this research is to analyze the effect of carbon modification and bacterial concentration on MFC electricity production, reduction of Cr6+ and reduction of BOD. Carbon electrode was modified with rice husks and strong acid-base to improve MFC performance. The higher concentration of bacteria and modification of electrodes could produce greater electricity and can reduce more hexavalent chromium metal Cr6+ also able to reduce the most optimum BOD. Variable of 1011 cells/mL bacteria with electrode modification produced the best performance by producing electricity that was relatively more stable and the most optimum with total power density of 690.9mW/m2, reduced heavy metals Cr6+ to Cr3+ up to 92.78% and BOD removal of 33.11%.
AB - The rapid growth of textile industry has resulted in increasing amounts of heavy metal chromium waste. Metal waste production reaches 80% of the total amount of water used in the batik process. Microbial Fuel Cell (MFC) is a promising alternative because of its ability to reduce metal waste Cr6+ while processing organic waste and producing bioelectric. In addition, molasses still contain 50-60% sugar which has the potential to be degraded. Shewanella oneidensis MR-1 was used in this research due to its high productivity. MFC used dual chamber continue to optimize the process. The objective of this research is to analyze the effect of carbon modification and bacterial concentration on MFC electricity production, reduction of Cr6+ and reduction of BOD. Carbon electrode was modified with rice husks and strong acid-base to improve MFC performance. The higher concentration of bacteria and modification of electrodes could produce greater electricity and can reduce more hexavalent chromium metal Cr6+ also able to reduce the most optimum BOD. Variable of 1011 cells/mL bacteria with electrode modification produced the best performance by producing electricity that was relatively more stable and the most optimum with total power density of 690.9mW/m2, reduced heavy metals Cr6+ to Cr3+ up to 92.78% and BOD removal of 33.11%.
UR - http://www.scopus.com/inward/record.url?scp=85086411148&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/823/1/012016
DO - 10.1088/1757-899X/823/1/012016
M3 - Conference article
AN - SCOPUS:85086411148
SN - 1757-8981
VL - 823
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012016
T2 - 2019 International Seminar on Chemical Engineering Soehadi Reksowardojo, STKSR 2019
Y2 - 7 October 2019 through 9 October 2019
ER -