Produksi Biogas dari Limbah Cair Kelapa Sawit dengan Menggunakan Reaktor Unggun Tetap tanpa Proses Pretreatment

Main Article Content

Wiharja Wiharja
Widiatmini Sih Winanti
Prasetiyadi Prasetiyadi
Amita Indah Sitomurni

Abstract

ABSTRACT


Palm Oil Mill Effluent (POME) resulted from the palm oil industry is a potential resource for biogas production. In this study, POME was processed by utilizing microbes in an anaerobic condition using a fixed bed reactor. This study aimed at providing alternative processing of POME into biogas at the most optimum biogas yield without any pretreatment, taking advantage of POME conditions generated from the production process at the average temperature of 55 – 60 °C. In the anaerobic process, temperature conditions have a significant effect on bacteria's performance to degrade organic matter. In thermophilic conditions, bacteria deteriorate organic substrates more actively than in mesophilic states. This research proved that using fixed bed reactor technology to treat POME without pretreatment has generated biogas at the yield of 25.43 liters/liter of POME production. Applying this technology also demonstrated that investment and operating costs are cheaper due to having no mixing tank and fewer chemicals applications for the neutralization process.


Keywords: biogas, fixed bed reactor, POME, pretreatment, thermophilic


 


ABSTRAK


Proses pengolahan POME dapat dilakukan dengan menggunakan proses fermentasi anaerobik yaitu memanfaatkan kerja bakteri anaerobik untuk memproduksi biogas. Penelitian ini bertujuan memberikan alternatif pengelolaan limbah cair pabrik kelapa sawit yang dapat menghasilkan biogas yang paling optimal tanpa melakukan pretreatment. Proses yang dipilih disesuaikan dengan kondisi panas POME yang keluar proses yaitu sekitar 55 - 60 oC. Kondisi temperatur sangat berpengaruh nyata terhadap kinerja bakteri pendegradasi bahan organik di dalam limbah cair dalam proses anaerobik. Pada kondisi termofilik bakteri lebih aktif dibandingkan pada kondisi mesofilik. Melalui penelitian ini, dapat diketahui bahwa dengan menggunakan teknologi reaktor fixed bed untuk mengolah POME tanpa adanya pretreatment, biogas tetap dapat diperoleh dengan perolehan rata rata 25,43 liter per liter POME. Dengan menggunakan teknologi ini biaya investasi dan operasi akan lebih murah dikarenakan tidak memerlukan bak pencampur dan penggunaan bahan kimia untuk proses netralisasi.


Kata kunci: Biogas, reaktor fixed bed, POME, pretreatment, termofilik

Article Details

Section
RESEARCH ARTICLES

References

Nurrochmat, D. R., Boer, R., Ardiansyah, M., Immanuel, G., & Purwawangsa, H. (2020). Policy forum: Reconciling palm oil targets and reduced deforestation: Landswap and agrarian reform in Indonesia. Forest Policy and Economics, 119, 102291.

Tan, K. T., Lee, K. T., Mohamed, A. R., & Bhatia, S. (2009). Palm oil: Addressing issues and towards sustainable development. Renewable and Sustainable Energy Reviews, 13(2), 420–427.

Hambali, E., & Rivai, M. (2017). The potential of palm oil waste biomass in Indonesia in 2020 and 2030. In IOP Conference Series: Earth and Environmental Science (Vol. 65, No. 1). IOP Publishing.

Ramaraj, R., & Unpaprom, Y. (2016). Effect of temperature on the performance of biogas production from Duckweed. Chemistry Research Journal, 1(1), 58–66.

Santoso, A. D. (2018). Evaluasi Kinerja Pabrik Kelapa Sawit Dalam Produksi Energi Terbaharukan. Jurnal Teknologi Lingkungan, 19(2), 213–220.

Rajani, A., Santosa, A., Saepudin, A., Gobikrishnan, S., & Andriani, D. (2019). Review on biogas from palm oil mill effluent (POME): challenges and opportunities in Indonesia. In IOP Conference Series: Earth and Environmental Science (Vol. 293, No. 1, p. 012004). IOP Publishing.

Choong, Y. Y., Chou, K. W., & Norli, I. (2018). Strategies for improving biogas production of palm oil mill effluent (POME) anaerobic digestion: A critical review. Renewable and Sustainable Energy Reviews, 82, 2993-3006.

Winanti, W. S., Prasetiyadi, P., & Wiharja, W. (2019). Pengolahan Palm Oil Mill Effluent (POME) menjadi Biogas dengan Sistem Anaerobik Tipe Fixed Bed tanpa Proses Netralisasi. Jurnal Teknologi Lingkungan, 20(1), 143-150.

Krakat, N., Westphal, A., Schmidt, S., & Scherer, P. (2010). Anaerobic digestion of renewable biomass: thermophilic temperature governs methanogen population dynamics. Applied and environmental microbiology, 76(6), 1842-1850.

Montgomery, L. F., & Bochmann, G. (2014). Pretreatment of feedstock for enhanced biogas production (pp. 1-20). Ireland: IEA Bioenergy.

Thauer, R. K., Jungermann, K., & Decker, K. (1977). Energy conservation in chemotrophic anaerobic bacteria. Bacteriological reviews, 41(1), 100.

Indriyati, I. (2005). Pengolahan Limbah Cair Organik Secara Biologi Menggunakan Reaktor Anaerobik Lekat Diam. Jurnal Air Indonesia, 1(3).

Parinduri, L. (2018). Analisa Pemanfaatan Pome Untuk Sumber Pembangkit Listrik Tenaga Biogas Di Pabrik Kelapa Sawit. JET (Journal of Electrical Technology), 3(3), 180-183.

Borja, R., & Banks, C. J. (1994). Anaerobic digestion of palm oil mill effluent using an up-flow anaerobic sludge blanket reactor. Biomass and Bioenergy, 6(5), 381-389.

Murti, G. W., Pertiwi, A., Masfuri, I., Juwita, A. R., Adiprabowo, A. B., Dwimansyah, R., Senda, S. P., & Prasetyo, D. H. (2019). Ulasan Teknologi Pretreatment Terkini Limbah Cair POME Sebagai Umpan Digester Biogas