Produksi Biolistrik Limbah Cair Pemindangan dengan Sistem Salt Bridge Microbial Fuel Cell Berbahan Natrium Alginat
Date
2021Author
Simanungkalit, Nober Pores
Ibrahim, Bustami
Hardiningtyas, Safrina Dyah
Metadata
Show full item recordAbstract
Microbial fuel cell (MFC) merupakan suatu teknologi alternatif penghasil
energi listrik dari limbah cair. Microbial fuel cell dua bejana terdiri dari bejana
anoda dan katoda yang dihubungkan oleh membran penukar proton maupun
jembatan garam. Na-alginat merupakan polimer alami yang dapat dijadikan media
jembatan garam. Penelitian ini bertujuan menentukan produksi biolistrik dan
penurunan beban polusi dari limbah cair pemindangan dengan sistem salt-bridge
microbial fuel cell berbahan Na-alginat. Konsentrasi Na-alginat yang digunakan
yaitu 10%, 15%, dan 20%. Nilai elektrisitas tertinggi diperoleh pada perlakuan
konsentrasi Na-alginat 20% yaitu nilai tegangan listrik sebesar 1,53 V, arus listrik
sebesar 3,96 mA, dan daya listrik sebesar 6,03 mW. MFC jembatan garam Na alginat mampu menurunkan parameter biological oxygen demand (BOD) dan total
ammonia nitrogen (TAN) sebesar 73% dan 76%. Perbedaan konsentrasi Na-alginat
mempengaruhi kinerja MFC. Perlakuan terbaik terdapat pada konsentrasi Na-alginat 20%. Microbial fuel cell is an alternative technology for producing electrical
energy from wastewater. Dual chamber MFCs consists of anode and cathode
chambers connected with a proton exchange membrane or salt bridge. Sodium
alginate is a natural polymer that can be used as salt bridge medium. This study was
aimed to determine the bioelectric production and reduce the pollution load from
the effluent using salt-bridge microbial fuel cell system made from Na-alginate. The
sodium alginate concentrations used were 10%, 15%, and 20%. The highest value
of electricity was obtained in the treatment of 20% sodium alginate concentration,
the electric voltage was 1,53 V, the electric current was 3,96 mA, and the electric
power was 6,03 mW. Sodium alginate salt bridge MFCs were able to reduce BOD
and TAN parameters by 73% and 76%, respectively. Differences in Na-alginate
concentrations affect MFC performance. The best treatment was at a concentration
of 20% Na-alginate.