Research article
Vol 11 No 1 (2017): Volume 11, Number 1, 2017
Pengaruh organic loading rate pada produksi biohidrogen dari sampah buah melon (Cucumis melo L.) menggunakan reaktor alir pipa
Departemen Teknik Kimia, Fakultas Teknik Universitas Gadjah Mada Jl. Grafika No. 2, Yogyakarta, 55281
Departemen Teknik Kimia, Fakultas Teknik Universitas Gadjah Mada Jl. Grafika No. 2, Yogyakarta, 55281
Departemen Teknik Kimia, Fakultas Teknik Universitas Gadjah Mada Jl. Grafika No. 2, Yogyakarta, 55281
Abstract
The energy crisis and adverse effects from the use of fossil fuels requires the development of energy sources that are non-polluting and renewable, such as bio-H2. Bio-H2 can be produced from organic biomass such as melon fruit waste, because it is available in large quantities and has adequate content of organic fraction. Production of bio-H2 from melon fruit waste done by dark fermentation on the pipe flow reactor consisting of microorganisms acclimatization phase and continuous substrate feeding phase with variation of organic loading rate (OLR) are 6.0443 kg VS/ m3.day (OLR1), 7.6217 kg VS/ m3.day (OLR2) and 26.3152 kg VS/ m3.day (OLR3). Gas and liquid samples taken from the reactor for analysis of H2 concentration, volatile solid (VS) and volatile fatty acid (VFA) The results of the study showed that the production of bio-H2 optimal amounted to 90.8904 mL/ g VS on variations OLR3 is 26.3152 kg VS/ m3.day with substrate degradation efficiency reached 45.39%. The concentration of organic acids produced ranges from 400-800 mg/ L and acetic acid as the dominant product with an average concentration of 442.9276 mg/ L.
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