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All Journal Jurnal Purifikasi Jurnal Pengabdian dan Peningkatan Mutu Masyarakat (JANAYU)
Nuniek Hendrianie
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences Other

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PENGARUH KANDUNGAN SULFAT TERHADAP PARAMETER KINETIKA MIKROBA DALAM PEMBUATAN BIOGAS DENGAN PENAMBAHAN SULFAT REDUCING BACTERIA (SRB) Nuniek Hendrianie
Purifikasi Vol 9 No 2 (2008): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v9.i2.151

Abstract

The global energy crisis that has occurred recently made engineers and policy makers to realize that dependency on natural oil should be reduced. In order to respond to this situation, development of technology for alternative non-oil fuel production, which is environmental friendly, should be generated. Biogas is an alternative energy, which has been widely researched by many scientists. The purpose of this research is to optimize biogas production from industrial wastewater treatment sludge of PT SIER by reducing sulphate content using Sulphate Reducing Bacteria (SRB) and to determine the kinetics parameters for reactor design. The SRB which was used in this research was Desulfovibrio desulfuricans. The SRB reduced the formation of hydrogen sulfide (H2S) from sulphate. From former research, it was obtained that the addition of 0.1% SRB resulted in high CH4 and low H2S contents. In this research batch digesters with COD/sulphate ratios of 2:1 and 2.5:1 and addition of 0.1% SRB were used for 15 days. The results showed that digester with COD/SO42- ratio of 2:1 showed better performance than that with COD/SO42- ratio of 2.5:1. The gas compositions in the reactor with COD/SO42- ratio of 2:1 were: CH4 = 78.4 %, H2S = 0.16%, and CO2 = 15.90% . The measured heat value in this reactor was 11,980 Kcal/kg; and the percentage of H2S reduction was 94.30%. The gas compositions in the reactor with COD/SO42- ratio 2.5:1 were CH4 = 76.82%, H2S = 0.22%, CO2 = 16.42%. The heat value in this reactor was 11,820 Kcal/kg, and H2S reduction was 92.10%. The sulphate reduction in the reactor with COD/SO42- ratio of 2:1 is 89.2%, with kinetics velocity (µm) = 0,008 L/day, Km = 5907.943 mg/L, and Yield = 5.668. Additionally, in reactor with COD/SO42- ratio 2.5:1, the sulphate reduction was 86.6% with kinetics velocity (µm) = 0.002 L/day, Km = 6179.315 mg/L, and Yield = 2.626.
PERAN FUNGI Phanerochaete chrysosporium DALAM PROSES PRETREATMENT BAGASSE DAN TANDAN KOSONG KELAPA SAWIT MENJADI SUMBER ENERGI TERBARUKAN Nuniek Hendrianie
Purifikasi Vol 10 No 2 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i2.173

Abstract

Bagasse and oil palm empty fruit bunches are high cellulosic waste, which contain considerably high lignocellulosic compounds. Therefore, these waste can potentially be used as renewable energy source. This experimental work utilised bagasse and oil palm empty fruit bunches as raw material in biogas production. The reason of using this high cellulosic waste as raw material of biogas had a constraint in hydrolyses process. Therefore, cellulosic pretreatment should be carried out before biogas production process. A biological pretreatment using fungi is chosen, because it produces better result than other methods. The aim of this experiment is to investigate the performance of Phanerochaete chrysosporium on the pretreatment of bagasse and oil palm empty fruit bunches, and its effect on biogas qualities and quantities. The method used in this experimental work was divided into two steps, which were fungal pretreatment and biogas production. Bagasse waste was collected from a Sugar Plant (PT PG Tjandi), and oil palm empty fruit bunches was from PT Sajang Heulang Angsana Mini Factory. The wastes were grinded and added with a ratio of 1:8 of water - P. chrysosporium culture. Then it was innoculated in PDA for 7 days, and filled into culture medium of pH 8. This culture was homogenised until fungi concentration of 5 x 106 spore/ml. Waste sludge and fungi were filled into stirred and aerated pretreatment tank at a temperature range of 35-40°C, and pH value of 4-4.5 for 7 days. While fungal pretreatment was prepared, starter for biogas production process was made by mixing manure and water in a ratio of 1:2. This mixture was fermented for 5 days. Waste resulted from fungal pretreatment was mixed with starter and water in ratio of starter : waste : water as 1:2:4. Reactor temperature was kept constant at 30°C, with a fermentation period of 15 days. The best experimental result was reached at 20% fungi added. At this composition glucose concentration in oil palm empty fruit bunches reactor was 11.085%, from the initial glucose concentration of 5.78%. The cellulose content decreased from 71.68 to 41.35%. The best gas composition was 75.82% methane with heating value of 11248 kkal/kg. This composition was reached by 20% fungi added.
Pendampingan Pengajuan Sertifikasi Halal Pelaku UMKM Makanan-Minuman Rachmaniah, Orchidea; Yeni Rahmawati; Wahyu Meka; Fahmi; Nuniek Hendrianie; Ali Altway; Susianto
Jurnal Pengabdian dan Peningkatan Mutu Masyarakat (Janayu) Vol. 5 No. 1 (2024): Jurnal Pengabdian dan Peningkatan Mutu Masyarakat
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/janayu.v5i1.25267

Abstract

Purpose – This community service activity aims to provide assistances for Small-Medium Enterprises (SMEs), specially for food and beverage field, applying halal certification via Halal self-declared (SEHATI) Program. Design/methodology/approach – This program is conducted by recruting and training students as certified halal companion (PPH) by BPJPH. This were done by collaboration between Halal Center Studies of the Institut Teknologi Sepuluh Nopember (PKH-ITS) and ITS Techno Science. The SMEs training for Halal Process held around August 2023. Afterward, all the PPH will be accompanied and assisted the SMEs for applying the halal certificate via SIHALAL system; including preparing the SJPH, entry all the information, submitting the document, verification and validation as well as done the revision untill the halal certificate was finally issued. Findings – The SEHATI program has been started since 2021 and the quota continues to increase every year. However, not every SMEs known this information. It is mandatory for food and beverage, slaughter services, and slaughter products at 17th October 2024 should be halal certified. Therefore, PKH-ITS together with PPH helps and assists SMEs in applying a halal certification through a community service program at 2022. The upgraded facilities of SIHALAL’s website (version 2022) make it more user friendly. The 15 SMEs have certified via the SEHATI22 program with PKH assistances. Originality/value – Though the SEHATI Program is announced by the goverment at 2021, this relatively not well known by the SMEs as the subject of the halal certification. Hence, third party such PKH-ITS need to present for accompanying and assisting the SMEs. The SIHALAL system is used for submitting the application of halal certification. Therefore, highly technology adapted of the PPH are required, for completely assisting the SMEs. Hence, the presence of the PPH in this process is mandatory and vital; increasing the succesibility of the SEHATI program.
Co-Authors Ali Altway Fahmi Rachmaniah, Orchidea Susianto Wahyu Meka Yeni Rahmawati