Biogas from Mesophilic Anaerobic Digestion of Cow Dung Using Silica Gel as Catalyst

Salam, Bodius; Biswas, Saurabh; Rabbi, Sanaul

doi:10.1016/j.proeng.2015.05.044

Cited by 49 publications

(28 citation statements)

References 6 publications

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“…This meant that the digester working at mesophilic zone. Based on working temperature, anaerobic digestion process is classified into psychrophilic (10-20 o C), mesophilic (20-40 o C), and thermophilic (40-60 o C) (Salam et al, 2015;de Mes et al, 2003). Digester temperatures, however, were slightly higher than the ambient.…”

Section: Process Temperature and Phmentioning

confidence: 99%

Effect of Hydraulic Retention Time on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester

Haryanto

Triyono

Wicaksono

2018

Int. J. Renew. Energy Dev.

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The efficiency of biogas production in semi-continuous anaerobic digester is influenced by several factors, among other is loading rate. This research aimed at determining the effect of hydraulic retention time (HRT) on the biogas yield. Experiment was conducted using lab scale self-designed anaerobic digester of 36-L capacity with substrate of a mixture of fresh cow dung and water at a ratio of 1:1. Experiment was run with substrate initial amount of 25 L and five treatment variations of HRT, namely 1.31 gVS/L/d (P1), 2.47 gVS/L/d (P2), 3.82 gVS/L/d (P3), 5.35 gVS/L/d (P4) and 6.67 gVS/L/d (P5). Digester performance including pH, temperature, and biogas yield was measured every day. After stable condition was achieved, biogas composition was analyzed using a gas chromatograph. A 10-day moving average analysis of biogas production was performed to compare biogas yield of each treatment. Results showed that digesters run quite well with average pH of 6.8-7.0 and average daily temperature 28.7-29.1. The best biogas productivity (77.32 L/kg VSremoval) was found in P1 treatment (organic loading rate of 1.31 g/L/d) with biogas yield of 7.23 L/d. With methane content of 57.23% treatment P1 also produce the highest methane yield. Biogas production showed a stable rate after the day of 44. Modified Gompertz kinetic equation is suitable to model daily biogas yield as a function of digestion time.Article History: Received March 24th 2018; Received in revised form June 2nd 2018; Accepted June 16th 2018; Available onlineHow to Cite This Article: Haryanto, A., Triyono, S., and Wicaksono, N.H. (2018) Effect of Loading Rate on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester. Int. Journal of Renewable Energy Development, 7(2), 93-100.https://doi.org/10.14710/ijred.7.2.93-100

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Section: Process Temperature and Phmentioning

confidence: 99%

Effect of Hydraulic Retention Time on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester

Haryanto

Triyono

Wicaksono

2018

Int. J. Renew. Energy Dev.

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“…Penguraian anaerob terjadi secara alami pada substrat organik yang mengandung protein, lemak, dan karbohidrat dengan melibatkan mikroorganisme untuk menguraikan senyawa organik menjadi gas metan [28,7]. Tahapan pembentukan biogas dimulai dari proses hidrolisis, asidogenensis, asetogenensis, dan metanogenesis [23].…”

Section: Teoriunclassified

“…Komposisi biogas secara umum terdiri dari 55 -65% metana, 35 -45% karbondioksida, 0 -3% nitrogen, 0 -1% hidrogen sulfide. Biogas dapat dikonversi menjadi energi sebesar 20 -25 MJ/ m 3 [7,3]. Pada biogas yang memiliki komposisi metan lebih dari 45% bersifat mudah terbakar dan merupakan bahan bakar yang cukup baik karena memiliki nilai kalor bakar yang tinggi [19].…”

Section: Teoriunclassified

PENGARUH PENAMBAHAN TRACE METAL (MOLYBDENUM & SELENIUM) TERHADAP PEMBUATAN BIOGAS DARI SAMPAH ORGANIK DAN KOTORAN SAPI

Fatimah

Angelin

2018

J. Teknik Kimia

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AbstrakTrace metal sangat penting untuk enzim kofaktor dalam pembentukan metana, namun ketersediaannya secara alami di alam tidak mencukupi sehingga diperlukan penambahan trace metal. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan trace metal Molibdenum (Mo) dan Selenium (Se) sebagai trace metal terhadap kinerja digester anaerobik. Penelitian dilakukan terhadap campuran sampah sayuran, aquadest dan kotoran sapi yang telah diblender kemudian difermentasi selama 30 hari pada variasi penambahan trace metal Mo 10 mg/L, Se 10 mg/L, campuran Mo + Se 10 mg/L di dalam reaktor batch berkapasitas 4 L. Digester dioperasikan pada range pH (6,5 -8) dan suhu lingkungan (25 -30 o C). Pada penelitian ini parameter yang diamati adalah volume bogas, pH, suhu, TS dan VS. Volum kumulatif biogas tertinggi pada penelitian ini sebesar 630 ml dalam reaktor penambahan Mo+Se dengan degradasi TS rata-rata 26,69 % dan VS 17,18 %.Kata kunci: digester anaerobik, kotoran sapi, molibdenum, sampah sayuran, selenium AbstractTrace metal are essential for the enzyme cofactors in methane formation, but its availability of natural is not enough so that the necessary additional trace metal. The purpose of this study is to determine the effect of addition Molybdenum (Mo) and Selenium (Se) as trace metal on the quality and quantity of biogas in anaerobic digesters. The study was carried out by mixing vegetables wastes, aquadest and cow manure that have been in a blender and then have been fermented for 30 days in variety of addition of trace metal Mo 10 mg/L, Se 10 mg/L and a mixture of Mo + Se 10 mg/L in an reactor batch of 4 L capacity. Operation in digesters, pH was maintained in range (6.5 -8) and at temperature 25 -30 o C. This research parameters that observed were volume biogas, pH, temperature, TS and VS. The highest of volume cumulative biogasin this experiment 630 ml are formed Mo + Se, with degradation average TS 26.69 % and VS 17.18 %.

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“…According to [3] it is known that the biogas mainly is composed of around 65% methane by volume and about 35% CO 2 ,beside some negligible amounts of other gases. So , to describe the previous statement by equations then, knowing that 1 m 3 of dung produces 10.667 m 3 of biogas as can be deduced from [4], the following equations are needed for finding the gas mass produced in the process:…”

Section: Biogas Production Calculationsmentioning

confidence: 99%

“…The third renewable energy source that can be used in Jordan is biogas.Many researchers have studied different aspects of biogas, like changing the components of cow dung as in [2]. Others have used some materials as a catalysts of the anaerobic digestions process as in [3] who used silica gel as the catalyst material for the cow dung. As mentioned above the researches topics about biogas production are very diverse, still not many researches discussed the feasibility ofsuch systems in Jordan especially in poultry farming.…”

Section: Introductionmentioning

confidence: 99%

Use of Biogas Energy in Poultry Farming Heating

Masalha¹,

Elayyan²,

Issa³

2017

THE IJES

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Biogas from Mesophilic Anaerobic Digestion of Cow Dung Using Silica Gel as Catalyst

Cited by 49 publications

References 6 publications

Effect of Hydraulic Retention Time on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester

Effect of Hydraulic Retention Time on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester

PENGARUH PENAMBAHAN TRACE METAL (MOLYBDENUM & SELENIUM) TERHADAP PEMBUATAN BIOGAS DARI SAMPAH ORGANIK DAN KOTORAN SAPI

Use of Biogas Energy in Poultry Farming Heating

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