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All Journal Mechatronics, Electrical Power, and Vehicular Technology Jurnal Hasil Penelitian Industri
Arini Wresta
Pusat Penelitian Tenaga Listrik dan Mekatronik - Lembaga Ilmu Pengetahuan Indonesia Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Electrical & Electronics Engineering Energy Environmental Science

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REVIEW KONSTANTA-KONSTANTA KINETIKA PERTUMBUHAN BAKTERI-BAKTERI ANAEROBIK PADA PEMBUATAN BIOGAS DARI KOTORAN SAPI (Review of Growth Kinetic Constants of Anaerobic Bacterias Involved on Biogas Production from Cow Manure) Wresta, Arini
Jurnal Hasil Penelitian Industri Vol 27, No 2 (2014)
Publisher : Baristand Industri Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.353 KB)

Abstract

The important parameters needed for process and digester design in biogasproduction are kinetic constants. This research will study these constants for biogasproduction from cow manure. The study is based on anaerobic bacterias cell growthkinetic with simplifying the organic degradation to biogas in one main step that is done bymathanogenic bacterias, and the value of μg is represented by Monod Equation. From thisresearch it is obtained the value of kinetic constant for cow manure biogas productioni.e. , , CH VS Y 4 / , CO VS Y 2 / , VS X Y / , CH X Y 4 / and CO X Y 2 / respectively of 0,0433 day-1 to0,1386 day-1, 21,23 mg/L, 478,42 L CH4/kg VS, 438,02 L CO2/kg VS, 30,9278 g VS/g sel,14,7965 L CH4/g cell, dan 13,5470 L CO2/g cell.
The Effect of the Addition of Active Digester Effluent for Start-up Accelerator in Anaerobic Digestion of Soybean Curd Industry Waste Water (Basic Research for Biogas Power Generation) Wresta, Arini; Budhijanto, Wiratni
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 3, No 2 (2012)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.556 KB) | DOI: 10.14203/j.mev.2012.v3.81-86

Abstract

Biogas production from soybean curd industry waste water was studied in laboratory scale to improve the application of anaerobic digestion process. The problem with the soybean curd waste water was the fact that it does not sufficiently contain anaerobic microorganisms required in biogas production. Therefore, it is necessary to add a well-developed population of anaerobic microorganisms to accelerate the start-up of the anerobic digestion. This research was aimed to verify the influence of the addition of active digester effluent into the soybean curd waste water batches in an anaerobic digestion process. Batch experiments were done in two digesters. The first digester was only fed with soybean curd waste water while the second digester was fed with soybean curd waste water and active digester effluent from a digester processing cow manure which was very rich in anaerobic microorganism consortium. The results indicated that soybean curd industry waste water did not contain methanogenic bacteria but there existed some acidogenic bacteria. The addition of active digester effluent accelerated the anaerobic digestion start-up and directed the process pathway towards methanogenic process so that more methane was obtained. The high methane content obtained (more than 64% volume) was very potential for power generation. The capacity of soybean curd industry must be as high as 697.13 kg soybean per day to generate the electric energy of 8.4 kWh.
Co-Authors Wiratni Budhijanto