Enhancement of methane production from cassava residues by biological pretreatment using a constructed microbial consortium

Zhang, Qinghua; He, Jiang; Tian, Mingyi; Mao, Zhangming; Tang, Lei; Zhang, Jianhua; Zhang, Hongjian

doi:10.1016/j.biortech.2011.06.061

Cited by 171 publications

(49 citation statements)

References 24 publications

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“…Zhang et al (2011) used tapioca dregs and did a microbial consortium pretreatment in a batch reactor with 55oC temperature could result methane yield of 259,46 mL/g VS this was obtainable on 12 hours of preliminary treatment where 96,63% was higher than control which was 131,95 mL/g VS) [14].This proofs that the use of microbial consortium on rice husks waste pretreatment can help degrade lignocellulose so the production of biogas is increased.…”

Section: Pretreatment Enzymementioning

confidence: 98%

Enhancement of Biogas Production from Rice Husk by NaOH and Enzyme Pretreatment

Syafrudin¹,

Nugraha²,

Agnesia³

et al. 2018

E3S Web Conf.

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Abstract. Biogas is a renewable energy source that can be used as an alternative fuel to replace fossil fuel such as oil and natural gas. This research aims to analyze the impact of NaOH (Sodium hydroxide) and enzyme usage on the production of rice husk biogas using Solid State Anaerobic Digestion (SS-AD). Generally, SS-AD occurs at solid concentrations higher than 15%. The waste of rice husk are used as substrate with a C/N ratio of 25% and the total of solid that are used is 21%. Rice husk contains high lignin, therefore it is handled with chemical and biological treatment. The chemical preliminary treatment was using NaOH with various concentrations from 3%, 6% and 9% while the biological preliminary treatment was using enzyme with various concentration from 5%, 8%, and 11%. The biogas that is produced then measured every two days during 60 days of research with the biogas volume as a parameter observed. The result of the research shows that preliminary treatment with NaOH and enzyme can increase the production of biogas. The highest biogas production was obtained by the NaOH pretreatment using 6% NaOH which was 497 ml and by enzyme pretreatment using 11% enzyme which was 667,5 ml.

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Section: Pretreatment Enzymementioning

confidence: 98%

Enhancement of Biogas Production from Rice Husk by NaOH and Enzyme Pretreatment

Syafrudin¹,

Nugraha²,

Agnesia³

et al. 2018

E3S Web Conf.

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“…Biological pretreatment method does not produce any unwanted products as compared to chemical and physical pretreatment. Additionally, high pressure, acids, alkali, high temperature or any reactive species are not compulsory for this pretreatment (Zhang et al, 2011). White-and soft-rot fungi contain lignin-degrading enzymes like lignin peroxidases, manganese-dependent peroxidases, polyphenol oxidases, and laccases which are effective for the lignin degradation.…”

Section: Biological Pretreatmentmentioning

confidence: 99%

Bioethanol Production From Lignocellulosic Biomass by Environment-Friendly Pretreatment Methods: A Review

Tayyab¹

2018

Appl. Ecol. Env. Res.

100

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Abstract. Lignocellulosic biomass is one of the abundant renewable bioresources on earth. Its chemical composition, i.e., lignin hinders ethanol production and commercialization. Pretreatment processes are vital for efficient separation of the complex interlinked components and enhance the availability of every component, i.e., cellulose and hemicellulose. However, for the bioethanol production, a major barrier is the removal of strong lignin component which is highly resistant to solubilization and a major inhibitor for hydrolysis of cellulose and hemicellulose. Pretreatment of biomass is necessary to make it susceptible to microorganisms, enzymes, and pathogens. Consequently, for the ethanol production, pretreatment of lignocellulosic biomass process is very costly. The initial pretreatment approaches include physical, physicochemical and biological methods. It found out that; pretreatment methods have a significant impact on efficient production of ethanol from biomass. However, extensive research is still necessary for the development of new and more efficient pretreatment processes for conversion of lignocellulosic biomass to ethanol. Present review article presents recent development on lignocellulose biomass pretreatment. We discussed the different pretreatment methods along advantages, disadvantages, and challenges for bioethanol production. This review includes benefits and drawbacks and chemical, physical, physiochemical and biological pretreatment along with existing problems. For the production of ethanol, this review will help researchers regarding selection, development and further planning of pretreatment for different lignocellulosic residues.

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“…Biological pretreatment aims to produce more hemicellulose and cellulose that help can be more widely available and easily digestible [6]. In this research using fixed variables microbial consortium of 5% of the total volume of liquid in the digester (200 ml).…”

Section: The Effect Of Biological Pretreatmentmentioning

confidence: 99%

“…In the process of biogas production from rice straw using a pretreatment in the form of delignification [5]. Chemical pretreatment refers to the use of chemicals, such as acids, bases, and ionic liquids to change the physical and chemical characteristics of lignocellulosic biomass [6]. Delignification process chemically induced by mixing and soaking acidic or alkaline compounds in the raw material before the fermentation process into biogas so that the raw material becomes softer and decreased levels of lignin [7].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Acid Pre-Treatment using Acetic Acid and Nitric Acid in The Production of Biogas from Rice Husk during Solid State Anaerobic Digestion (SS-AD)

et al. 2018

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Abstract. Pretreatment during biogas production aims to assist in degradation of lignin contained in the rice husk. In this study, pretreatment which is used are acid and biological pretreatment. Acid pretreatment was performed using acetic acid and nitric acid with a variety levels of 3% and 5%. While biological pretreatment as a control variable. Acid pretreatment was conducted by soaking the rice straw for 24 hours with acid variation. The study was conducted using Solid State Anaerobic Digestion (SS-AD) with 21% TS. Biogas production was measured using water displacement method every two days for 60 days at room temperature conditions. The results showed that acid pretreatment gave an effect on the production of biogas yield. The yield of the biogas produced by pretreatment of acetic acid of 5% and 3% was 43.28 and 45.86 ml/gr.TS. While the results without pretreatment biogas yield was 29.51 ml/gr.TS. The results yield biogas produced by pretreatment using nitric acid of 5% and 3% was 12.14 ml/gr.TS and 21.85 ml/gr.TS. Results biogas yield with acetic acid pretreatment was better than the biogas yield results with nitric acid pretreatment.

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Enhancement of methane production from cassava residues by biological pretreatment using a constructed microbial consortium

Cited by 171 publications

References 24 publications

Enhancement of Biogas Production from Rice Husk by NaOH and Enzyme Pretreatment

Enhancement of Biogas Production from Rice Husk by NaOH and Enzyme Pretreatment

Bioethanol Production From Lignocellulosic Biomass by Environment-Friendly Pretreatment Methods: A Review

The Effect of Acid Pre-Treatment using Acetic Acid and Nitric Acid in The Production of Biogas from Rice Husk during Solid State Anaerobic Digestion (SS-AD)

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