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All Journal Jurnal Ilmiah Teknik Kimia
Joni Prasetyo
BPPT
Chemical Engineering, Chemistry & Bioengineering Chemistry

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Screening and Isolation of H2S Decrease Microba for Biogas Purification from POME On Biogas Power Plant agustina dyah setyowati; Joni Prasetyo
Jurnal Ilmiah Teknik Kimia Vol 4, No 2 (2020): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v4i2.6464

Abstract

Biogas is a renewable alternative energy that can be produced from POME (Palm Oil Mill Effluent). Biogas consists of Methane (CH4), Carbon Dioxide (CO2) and a small amount of Hydrogen Sulfide (H2S) while Nitrogen (N2) and Oxygen (O2) are usually from the remaining air composition analyzed in the sample. In biogas, Hydrogen Sulfide consists more than 1200 ppm can cause corrosive so it is often a problem in the surrounding environment because it can damage equipments. A way to reducing H2S is by microbiological processes using microorganisms such as Thiobacillus. Thiobacillus is a chemototrophic bacteria that is able to decompose toxic into non-toxic chemical compounds. This research was carried out in several stages, namely: microbial screening process gas of H2S, isolation of potential microbial media containing sulfur NaHS, data analyst using Sulfur Analyzer. The process of isolation and screening of Indonesian microbes (indigeneous) uses conventional isolation methods, namely isolation using the process level with isolation stage: the first stage is sampling from nature, the second stage of dilution of samples in sterile water, the third stage of  storage for agar media, the fourth stage of mixing in samples of petri dishes, the fifth stage of incubation and the last stage of examination of incubation results.While for microbial separation using the agar scraping method. 
Preliminary Study on pH Optimization of Biogas Production Using POME, Palm Oil Mill Effluent joni prasetyo
Jurnal Ilmiah Teknik Kimia Vol 5, No 1 (2021): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v5i1.7453

Abstract

Organic waste that is not utilized will cause stinky odor. The Organic waste, especially liquid one,  has high COD. This kind Wastes with high COD are usually left not easily decomposed and those that live in the environment are anaerobic microbes which normally produce gas in metabolism. The gas usually consists of H2S and NH3 which give off an unpleasant odor. Handling of this organic waste by using a microbial source from cow dung can direct the waste conversion process to produce the main product in the form of methane (CH4). Preliminary study of liquid waste management from palm oil mill effluent (POME) in its handling. The initial conditioning was carried out by incubating cow manure and adding POME gradually by maintaining the pH of the media around 6.5. Uncontrolled treatment with a pH that did not change much from the initial pH of POME, which was between 4 - 5.5. The resulting biogas pH can reach 5.5 - 6.5 with CH4 when it is around 50%. Meanwhile, pH 6.5 - 7.5 gave the best biogas yield, namely 60%, even in the best conditions the CH4 concentration could reach 62.34% at pH 7.6.
Co-Authors Agustina Dyah Setyowati