The effect of enzymatic pretreatment and c/n ratio to biogas production from rice husk waste during solid state anaerobic digestion (SS-AD)

Nugraha, Winardi Dwi; Matin, Hashfi Hawali Abdul

doi:10.1051/matecconf/201710102016

Cited by 16 publications

(10 citation statements)

References 16 publications

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“…(Taherdanak & Zilouei, 2014) also found that lignin and hemicellulose in wheat plants were reduced using 8% NaOH. Recent research was also conducted by (Syafrudin, Dwi Nugraha, Hawali Abdul Matin, & Budiyono, 2017) where the addition of 3% NaOH for 24 hours can increase biogas production from rice husks under 21% TS conditions and a C/N ratio of 25. So it can be stated that chemical treatment with NaOH gives influence on biogas production compared without treatment with NaOH in an L-AD or SS-AD atmosphere.…”

Section: Resultsmentioning

confidence: 99%

Effect of NaOH on biogas production under SSAD conditions along with kinetics studies

Matin

Hadiyanto

2020

J. Ilmu Lingk.

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Indonesia is a large rice producing country where from these activities it produces waste in the form of rice husk. Rice husk cannot be degraded by itself due to the lignin content contained in the rice husk. Therefore, treatment is carried out to destroy the lignin content and use it as alternative energy in the form of biogas. The study was conducted at a laboratory scale at room temperature, preliminary treatment using 3% NaOH under the SSAD conditions of 27.5% TS and then biogas production was measured once every two days for 90 days. Furthermore, the results of biogas production were observed between biogas with NaOH and without NaOH and carried out a study of the kinetics. The result is that biogas production with NaOH is higher, reaching 59.2 mL/grTS whereas without NaOH at 14.7 mL/grTS. The results of kinetic studies using mathematical modeling through the Gompertz equation, the variable with NaOH is known to have a maximum biogas production of 63.9 mL/grTS, a daily biogas production rate of 0.97 mL/grTS.day and the initial formation of biogas significantly on the 8th day.

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Section: Resultsmentioning

confidence: 99%

Effect of NaOH on biogas production under SSAD conditions along with kinetics studies

Matin

Hadiyanto

2020

J. Ilmu Lingk.

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“…The preliminary treatment in this research with rice husk raw material aims to improve the optimization of rice husks up to 30% [5]. The result of analysis TS content is 93,4% of total solid.…”

Section: Preliminary Treatment and Solid Anaerobic Digestionmentioning

confidence: 99%

“…However, the smallest biogas production is in the 18 mesh reactor, which produces a total biogas yield of 960. 5…”

Section: Effect Of Grinding Size Variationsmentioning

confidence: 99%

The Effect of Grinding on Biogas Production from Rice Husk Waste During Solid State Anaerobic Digestion (SS-AD)

et al. 2020

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Biogas technology solves the problem of energy crisis. Biogas is a renewable and environment friendly fuel (Franthena, 2015). This study aims to determine the optimum value of grinding size variations in biogas production with the solid state anaerobic digestion (SS-AD) method of biogas production from rice husk waste. We divide the method used into four stages, namely, the testing phase of total rice content, solids, preparation phase, operation phase, and results analysis. The rice husk waste used for this study came from the Rowosari area. We accept rice for preliminary treatment with chemical pretreatment (NaOH). We soaked rice husk with a concentration of 6% NaOH for 24 hours as a control variable. Milling variations used as physical pretreatment are 10 mesh, 18 mesh, 35 mesh, 60 mesh. We used bioreactors with a volume of 200 ml. We observed all biogas reactors produced every two days for ± 60 days of research. The results showed that the reactors with 10 mesh, 18 mesh, 35 mesh, 60 mesh milling variations obtained a total biogas yield of 11.688484; 9,479955; 12.50772; 19,03718 ml / grTS until the 60th day. The control reactor (without grinding variations) produced 9,084606 ml / grTS. The highest biogas production level is 60 mesh with a value, (A) 19.03718 (ml / grTS); the rate of biogas production (U) 0.2416979 (ml / gr TS.day); and the minimum time for biogas formation (λ) is 3.83908 days.

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“…With the addition of Na 2 CO 3 and the hydrolysis of polysaccharides is expected to produce a lot of biogas in a short time. Similar with tapioca, many researchers have conducted research on biogas from waste such as agricultural waste is able to produce a lot of gas through an anaerobic process [2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Study of Biogas Production from Cassava Industrial Waste by Anaerobic Process

et al. 2018

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Abstract. Biogas production processes from tapioca wastewater have several problems that cause the biogas production is not optimal, such as pH drop at beginning of the process because the rate of acid formation is too fast and the rate of starch wastewater degradation is too slow. Therefore, to obtain optimal biogas production it is required two-stage reactor. The purposes of this research were to (i) study the influence of one stage fermentation and two stage fermentation on biogas production, (ii) study the effect of buffer Na2CO3 on biogas production, and (iii) study the effect of methanogenic bacteria concentration on biogas production from cassava starch effluent. The first method of our research was hydrolysis process by "Saccharomyces cereviceae" as substrate activator. The second is the arrangement of pH and the last is process of methane production. The results showed that the highest biogas production is achieved at concentration of methanogenic bacteria 20% (v/v) that is equal to 2458 ml. At concentration of 8% (v/v) and 15% (v/v), biogas production was 2105 ml and 2117 ml. The addition of Na 2 CO 3 can extend to 16 days with accumulation of 372 ml. While without the addition of buffer, biogas production period was only 9 days with accumulation of 620 ml. In semi continuous process, the analysis carried out every 3 days. Highest biogas production achieved in the variable addition of yeast with the accumulation 9329 ml. Without yeast, accumulation of biogas was 6831 ml. Yeast is use as substrate activator so it can accelerate the hydrolysis process and increased biogas production. The addition of Na 2 CO 3 is increase the alkalinity so the pH drop did not occur early in the process.

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The effect of enzymatic pretreatment and c/n ratio to biogas production from rice husk waste during solid state anaerobic digestion (SS-AD)

Cited by 16 publications

References 16 publications

Effect of NaOH on biogas production under SSAD conditions along with kinetics studies

Effect of NaOH on biogas production under SSAD conditions along with kinetics studies

The Effect of Grinding on Biogas Production from Rice Husk Waste During Solid State Anaerobic Digestion (SS-AD)

Study of Biogas Production from Cassava Industrial Waste by Anaerobic Process

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