Grass Silage for Biogas Production

Dussadee, Natthawud; Unpaprom, Yuwalee; RameshprabuRamaraj,

doi:10.5772/64961

Cited by 18 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Anaerobic Digestion (AD) is a mechanism or process that transforms and breaks down complex organic matter into biogas (CH 4 and CO 2 ) and some coproducts (solid and liquid co-products) containing oxygen and bacteria. The process will be carried out in four separate phases in total, including hydrolysis, acidogenesis, acetogenesis and methanogenesis (Dussadee et al, 2016).…”

Section: Fundamental Of Anaerobic Digestion Process In Producing Methane Gasmentioning

confidence: 99%

See 1 more Smart Citation

Review on landfill gas formation from leachate biodegradation

Japperi

Asri

Bakar

et al. 2021

MJCET

View full text Add to dashboard Cite

Landfill waste management is a very crucial procedure in handling Municipal Solid Waste (MSW) because it may create significant environmental issues if it is not managed properly. Landfill leachate and landfill gas (LFG) is part of the landfill waste management which triggered lot of researchers especially in terms of the environmental implications associated with the movement of the gasses during the waste constituents’ processes. Hence, this paper review is aiming to understand the behaviour of leachate itself as a decomposition agent in producing landfill gas (biogas). Biogas is naturally produced by anaerobic bacteria through anaerobic digestion which is affected by operating parameters and substrate characteristic. The results indicate that temperature, pH, and C/N ratio of leachate are the important factors that could increase the production of biogas with high content of methane. Furthermore, in terms of microbial activity during anaerobic digestion process, hydrogenotrophic and acetoclastic methanogen are the dominant substrate that contribute in producing methane gas as the final product. Firmicutes and Bacteroidetes are the common fermentative bacteria that had been found during fermentation process in hydrolysis and acidogenic phases. While, methanobacterial, methanococcal, methanomicrobial, methanosarcinal, and methanopyral are being classified as orders among 65 types of methanogenic archaea during methanogenesis stage. Overall, the relationships between operating parameters and microbial structure are important aspects that need to be considered in order to optimize the production of methane gas.

show abstract

Section: Fundamental Of Anaerobic Digestion Process In Producing Methane Gasmentioning

confidence: 99%

“…The reactive fatty acids are converted to more acetic acid, CO 2 , and H 2 S gas by the third stage of acetogenesis. At final stage of methanogenesis, methane gas is being produced by using CO 2 and H 2 S gas (Letinga et al, 1997;Dussadee et al, 2016).…”

Section: Fundamental Of Anaerobic Digestion Process In Producing Methane Gasmentioning

confidence: 99%

Review on landfill gas formation from leachate biodegradation

Japperi

Asri

Bakar

et al. 2021

MJCET

View full text Add to dashboard Cite

show abstract

“…The worldwide consumption of fossil fuels intensified greenhouse gas emissions released to the atmosphere and all the climate changes promoted by global warming (Dussadee et al, 2014 ; Ramaraj & Dussadee, 2015 ). In this context, biofuels are an emerging alternative to liquid fuels due to their high energy content and significantly less CO 2 emissions associated with their use (Dussadee et al, 2016 ). Bioethanol is a potential alternative fuel due to its properties in comparison with gasoline, such as higher flame speed, higher heats of vaporization, and higher-octane number, which makes it an antiknock fuel, are some of the main reasons to encourage its production (Gavahian et al, 2019 ; Vu et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Advancement of fermentable sugars from fresh elephant ear plant weed for efficient bioethanol production

Trejo

Bhuyar

Unpaprom

et al. 2021

Environ Dev Sustain

Self Cite

View full text Add to dashboard Cite

Bioethanol is considered one of the most promising next-generation automotive fuels, as it is carbon neutral and can be produced from renewable resources, like lignocellulosic materials. The present research investigation aimed to utilize the elephant ear plant, a hazardous plant (weed) also considered an invasive species, as a font of non-edible lignocellulosic biomass for bioethanol production. The freshly collected elephant ear plant (leaves and stalk) was chopped into small pieces (1–2 cm) and then homogenized to a paste using a mechanical grinder. The sample pretreatment was done by flying ash for three different time durations ( T 1 = 0 min, T 2 = 15 min, and T 3 = 30 min) with 3 replications. All treatment samples were measured for total sugar and reducing sugar content. The concentration of reducing sugar archived was T 1 = 0.771 ± 0.1 mg/mL, T 2 = 0.907 ± 0.032 mg/mL, and T 3 = 0.895 ± 0.039 mg/mL, respectively. The results revealed that the chemical composition was different among treatments. The hydrolysis was performed using cellulase enzymes at 35 °C for the hydrolysis process. The hydrolysate was inoculated with 1% of S. cerevisiae and maintained at room temperature without oxygen for 120 h. Bioethanol concentration was measured by using an ebulliometer. The efficient ethanol percentage was 1.052 ± 0.03 mg/mL achieved after the fermentation. Therefore, the elephant ear plant invasive weed could be an efficient feedstock plant for future bioethanol production.

show abstract

“…It was concluded that Napier grass had a higher affinity to be used as feedstock and had comparatively higher efficiency to yield biogas. The study showed that Napier grass possessed a higher content of organic substance which enables it to ferment faster and favor the anaerobic digestion [6]. Sawasdee & Pisutpaisal, conducted a study to determine the feasibility of biogas production from Napier grass.…”

Section: Introductionmentioning

confidence: 99%

Biochemical Methane Potential Assessment by Anaerobic Digestion of Locally Available Grasses of Phuentsholing, Bhutan

Choden

Zangmo

Tamang

et al. 2021

JERR

View full text Add to dashboard Cite

Renewable energy is not only environmental friendly but also promotes sustainable development. Biogas being one of the abundantly used renewable resource, the enhancement and optimization of the yield of biogas can help in reduction of dependence on imported fuel. Biochemical methane potential (BMP) assessment of grass will determine the production of methane (CH4) from this substrate through the process of anaerobic digestion. After determining the parameters such as pH, Biochemical Oxygen Demand (BOD) and Total solids (TS) of three types of local grasses known as Basil, Bermuda and Napier, that affects the production of biogas, Napier grass resulted with the highest potential to produce CH4 gas. Batch and continuous reactor method under mesophilic condition was adopted. The composition of biogas from continuous reactor was obtained using a biogas analyzer (Biogas 5000 Geotech), from which 30.8% of CH4, 8% of CO2 and other inert gases were found. Also, methane to carbon dioxide (CH4: CO2) ratio of 3.81: 1 approximately (80% - 20%) was achieved. Moreover, the batch reactor method showed that 1L Napier grass silage would yield 0.81L of biogas. The concentration of CH4 gas from Napier grass in hydraulic retention time as short as 20 days was very significant. This study shows that Napier grass can be used as an alternative sustainable source of energy in the country which can improve resource constraints.

show abstract

Grass Silage for Biogas Production

Cited by 18 publications

References 30 publications

Review on landfill gas formation from leachate biodegradation

Review on landfill gas formation from leachate biodegradation

Advancement of fermentable sugars from fresh elephant ear plant weed for efficient bioethanol production

Biochemical Methane Potential Assessment by Anaerobic Digestion of Locally Available Grasses of Phuentsholing, Bhutan

Contact Info

Product

Resources

About