Prospective of Eggshell Nanocalcium in Improving Biogas Production from Palm Oil Mill Effluent
- 2 Downloads
The palm oil industry is one of the strategic industries in Indonesia. However, it cannot be denied that the annual increase of palm oil production leads to a range of associated environmental effects. Liquid by-products are also generated due to the use of steam and water; known as Palm Oil Mill Effluent (POME). Interestingly, having high organic content, POME can be a profitable as it can be used to generate biogas. In this study, the effect of calcium nanoparticle on the anaerobe digestion of POME was investigated. Nanocalcium, obtained from milled-calcined chicken eggshell, was added into anaerobe digester. Biogas production was investigated for 20 days. We found that nanocalcium concentration of 10 g/L (mass of particle/volume of slurry) had the highest Chemical Oxygen Demand (COD) removal efficiency. Adding 5 g/L (mass of particle/volume of slurry) nanocalcium into anaerobe digester resulted in 1.5 × higher accumulative biogas production than adding calcium, at the same concentration. This finding indicates that reducing calcium particle size, using ball milling technique, improved accumulative biogas produced. However, at concentration of 10 g/L (mass of particle/volume of slurry), a vice versa phenomenon was observed, indicating that excessive calcium may not preferred for biogas production.
KeywordsBall mill By-products COD Nanoparticles Methane XRD SEM
This work is financially supported by the Indonesian Ministry of Research and Higher Education through National Strategic Program Research Grant (2018). The authors gratefully acknowledge the support and generosity of PT. Rajawali Nusantara Indonesia (RNI) Holding Company for providing POME from PT. Mitra Ogan.
- 1.Kementerian Perdagangan.: Negara Tujuan Ekspor 10 Komoditi Utama. https://www.kemendag.go.id/id/economic-profile/10main-and-potential-commodities/10-main-commodities (2016). Accessed 5 May 2016.
- 2.Departemen Pertanian.: Luas Areal, Produksi dan Produktivitas Perkebunan di Indonesia Tahun 2011–2015. https://www.pertanian.go.id/Indikator/tabel-3-prod-lsareal-prodvitasbun.pdf (2015). Accessed 5 May 2016.
- 7.Soleimaninanadegani, M., Manshad, S.: Enhancement of biodegradation of Palm Oil Mill Effluents by local isolated microorganisms. Int. Sch. Res. Not. 2014, 8 (2014)Google Scholar