Optimization of Biogas Production from Rice Husk Waste by Solid State Anaerobic Digestion (SSAD) Using Response Surface Methodology

An effort to obtain alternative energy is still interesting subject to be studied, especially production of biogas from agriculture waste. This paper was an overview of the latest development of biogas researches from rice husk waste by Solid State Anaerobic Digestion (SSAD). The main obstacle of biogas production from rice husk waste was the lignin content which is very difficult degraded by microbes. Various pretreatments have been conducted, either physically, chemically as well as biologically. The SSAD method was an attractive option because of the low water content of rice husk waste. The biogas yield by SSAD method gave more attractive result compared to Liquid Anaerobic Digestion (LAD) method. Various studies were still conducted in batch mode laboratory scale and also has not found optimum operating conditions. Research on a larger scale such as bench and pilot scale with continuous systems will be an increase trend in the future research.

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The Effect of Solid-State Anaerobic Disgestion (Ss-Ad) and Liquid Anaerobic Disgestion (L-Ad) Method in Biogas Production of Rice Husk

Journal of Vocational Studies on Applied Research ◽

10.14710/jvsar.v1i1.4291 ◽

2019 ◽

Vol 1 (1) ◽

pp. 5-17

Author(s):

Budiyono Budiyono ◽

Siswo Sumardiono ◽

Fadillah Fathir Mahmud Fofana ◽

Ihwan Fauzi ◽

Agus Hadiyarto

Keyword(s):

Anaerobic Digestion ◽

Solid State ◽

Rice Husk ◽

Biogas Production ◽

Agricultural Waste ◽

Total Solid ◽

Biological Pretreatment ◽

Water Displacement ◽

Daily Production ◽

Volume Unit

Rice husk is one of the agricultural waste from rice crop residue which has high potential to be processed into biogas. The purpose of this research is to study the effect of solid state anaerobic digestion and liquid anaerobic digestion on biogas production from rice husk waste. The anaerobic digestion laboratory scale used in this experiment is operated in a batch system and at room temperature. This method is added with chemical and biological pretreatment that was NaOH and microbial consortium. Total solid (TS) was varied from 5%, 7%, 9%, 11% which is L-AD and 17%, 19%, 21%, 23% are SS-AD. Biogas results were measured using the water displacement method every two days to determine daily production. The results showed that with the addition of NaOH the total volume of biogas obtained by L-AD method (TS 9%) and SS-AD (TS 23%) were 1254 ml and 1397 ml. Production of biogas per unit of TS for L-AD method is 46,44 ml / grTS and for SS-AD is 20,246 ml / grts, while biogas production per reactor volume unit for L-AD method is 6,26 ml / ml reactor and for SS-AD method is 4.64 ml / ml reactor. The kinetics constant of biogas production with L-AD method obtained A, U, and λ respectively were 50,53 ml / grTS, 1.23ml / grTS.day, 11,71 day, while for SS-AD method obtained A, U , and λ respectively 21.07 ml / grTS, 0.6 ml / grTS.day, 6.2 days.

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

E3S Web of Conferences ◽

10.1051/e3sconf/202020208004 ◽

2020 ◽

Vol 202 ◽

pp. 08004

Author(s):

Syafrudin ◽

Winardi Dwi Nugraha ◽

Aisyah Bahrani ◽

Hashfi Hawali Abdul Matin ◽

Budiyono

Keyword(s):

Anaerobic Digestion ◽

Solid State ◽

Rice Husk ◽

Biogas Production ◽

Control Variable ◽

Preliminary Treatment ◽

Biogas Yield ◽

Preparation Phase ◽

Biogas Reactors ◽

Operation Phase

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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The Influence of Total Solid (TS) Content to Biogas Production from Rice Husk Waste During Solid State Anaerobic Digestion (SS-AD)

Advanced Science Letters ◽

10.1166/asl.2017.8685 ◽

2017 ◽

Vol 23 (3) ◽

pp. 2204-2206 ◽

Cited By ~ 3

Author(s):

. Syafrudin ◽

Winardi Dwi Nugraha ◽

Indra Hukama Ardinata ◽

Larasati Gumilang Kencanawardhani ◽

Hashfi Hawali Abdul Matin ◽

...

Keyword(s):

Anaerobic Digestion ◽

Solid State ◽

Rice Husk ◽

Biogas Production ◽

Total Solid

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The Influence of Enzymatic Pretreatment and Food to Microorganism (F/M) Ratio to Biogas Production from Rice Husk Waste During Solid State Anaerobic Digestion (SS-AD)

Advanced Science Letters ◽

10.1166/asl.2017.8803 ◽

2017 ◽

Vol 23 (6) ◽

pp. 5687-5690 ◽

Cited By ~ 4

Author(s):

Syafrudin ◽

Winardi Dwi Nugraha ◽

Hashfi Hawali Abdul Matin ◽

Larasati Gumilang Kencanawardhani ◽

Budiyono

Keyword(s):

Anaerobic Digestion ◽

Solid State ◽

Rice Husk ◽

Biogas Production ◽

Enzymatic Pretreatment

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Optimization of C/N Ratio to Biogas Production from Rice Husk Waste by Using Solid State Anaerobic Digestion (SS-AD)

Advanced Science Letters ◽

10.1166/asl.2018.13103 ◽

2018 ◽

Vol 24 (12) ◽

pp. 9651-9652

Author(s):

Hashfi Hawali Abdul Matin ◽

Hadiyanto

Keyword(s):

Anaerobic Digestion ◽

Solid State ◽

Rice Husk ◽

Biogas Production

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The Influence of Microbial Consortium and C/N Ratio to Biogas Production from Rice Husk Waste by Using Solid State Anaerobic Digestion (SS-AD)

E3S Web of Conferences ◽

10.1051/e3sconf/20187301018 ◽

2018 ◽

Vol 73 ◽

pp. 01018

Author(s):

HashfiHawali Abdul Matin ◽

Hadiyanto

Keyword(s):

Anaerobic Digestion ◽

Solid State ◽

Rice Husk ◽

Room Temperature ◽

Biogas Production ◽

Agricultural Waste ◽

Water Displacement ◽

Enzymatic Pretreatment ◽

Batch System ◽

Volumetric Loading

Rice husk is one of agricultural waste which have a potential to be processed into biogas. The aim of this research was to study the effect of enzymatic pretreatment and C/N ratio to biogas production from rice husk by solid state anaerobic digestion (SS-AD). This research were operated in batch system and at room temperature. TS was set 21%. Enzymatic pretreatment was conducted using lignase enzyme. C/N ratio was varied from 35, 40, 45, and 50. The variation of C/N ratio is made by adding technical urea to the substrate. Biogas formed was measured by using water displacement method every two days. The result showed that enzymatic pretreatment could increase biogas production varied from 30 to 55 %. The highest biogas production was obtained at C/N ratio 35. Specific biogas production on C/N ratio of 35, 40, 45, and 50 were 11.6, 10.2, 9.8 and 9.4 ml/grTS, respectively. SS-AD has volumetric loading of biogas production higher than generally in liquid anaerobic digestion (L-AD). Combined with our previous research with variations of C/N ratio 20, 25, 30, and 35, we obtained an optimum C/N ratio at 35.

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