A comprehensive review on the pretreatment of lignocellulosic wastes for improved biogas production by anaerobic digestion

AbstractAgricultural crop residues like stems, straws and leaves are valuable resources for biofuel production, especially methane, due to anaerobic digestion. Biogas from agricultural lignocellulosic wastes is capable of attaining sustainable energy yields without environmental pollution. Farmers in many developing countries burn these wastes throughout their fields, imposing environmental hazard due to emission of greenhouse gases. The main problem in this field is the recalcitrance of the agricultural lignocellulose waste that limits its enzymatic degradation and hydrolysis efficiency and consequently decreases biogas production. Therefore, efficient pre-treatments prior to anaerobic digestion are essential. Various pre-treatment methods are used for increasing the anaerobic digestibility of lignocellulose biomass, such as physical (mechanical, thermal, etc.), chemical, biological and combined pre-treatments. This paper reviews different pre-treatments used in anaerobic digestion for the agricultural lignocellulosic wastes and explains the advantages and disadvantages of each. The most frequently used pre-treatments for main agricultural wastes in process of biogas production are also introduced.

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A Review on Anaerobic Digestion of Lignocellulosic Wastes: Pretreatments and Operational Conditions

Applied Sciences ◽

10.3390/app9214655 ◽

2019 ◽

Vol 9 (21) ◽

pp. 4655 ◽

Cited By ~ 3

Author(s):

Tahseen Sayara ◽

Antoni Sánchez

Keyword(s):

Anaerobic Digestion ◽

Food Industry ◽

Biogas Production ◽

Organic Wastes ◽

Wastewater Sludge ◽

Major Fraction ◽

Operational Conditions ◽

Lignocellulosic Wastes ◽

Anaerobic Biodegradability ◽

Wide Range

Anaerobic digestion (AD) has become extremely popular in the last years to treat and valorize organic wastes both at laboratory and industrial scales, for a wide range of highly produced organic wastes: municipal wastes, wastewater sludge, manure, agrowastes, food industry residuals, etc. Although the principles of AD are well known, it is very important to highlight that knowing the biochemical composition of waste is crucial in order to know its anaerobic biodegradability, which makes an AD process economically feasible. In this paper, we review the main principles of AD, moving to the specific features of lignocellulosic wastes, especially regarding the pretreatments that can enhance the biogas production of such wastes. The main point to consider is that lignocellulosic wastes are present in any organic wastes, and sometimes are the major fraction. Therefore, improving their AD could cause a boost in the development in this technology. The conclusions are that there is no unique strategy to improve the anaerobic biodegradability of lignocellulosic wastes, but pretreatments and codigestion both have an important role on this issue.

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Biogas Production from Community Waste to Optimise the Substrate for Anaerobic Digestion

International Review of Mechanical Engineering (IREME) ◽

10.15866/ireme.v12i7.15014 ◽

2018 ◽

Vol 12 (7) ◽

pp. 580

Author(s):

Antony P. Pallan ◽

S. Antony Raja ◽

C. G. Varma ◽

Deepak Mathew D.K. ◽

Anil K. S. ◽

...

Keyword(s):

Anaerobic Digestion ◽

Biogas Production

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Anaerobic Digestion of Banana Wastes for Biogas Production

10.37421/jcde.2020.10.347 ◽

2020 ◽

Vol 10 (3) ◽

Author(s):

Damaris Kerubo Oyaro ◽

Zablon Isaboke Oonge ◽

Patts Meshack Odira

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Banana Wastes

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Simulation of the Impact of Higher Ammonia Recycle Loads Caused by Upgrading Anaerobic Sludge Digesters

Water Quality Research Journal ◽

10.2166/wqrj.2005.053 ◽

2005 ◽

Vol 40 (4) ◽

pp. 491-499 ◽

Cited By ~ 2

Author(s):

Jeremy T. Kraemer ◽

David M. Bagley

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Treatment Plant ◽

Anaerobic Sludge ◽

Content Increase ◽

Limited Information ◽

Dynamic Simulations ◽

Treatment Train ◽

Temperature Liquid ◽

The Impact

Abstract Upgrading conventional single-stage mesophilic anaerobic digestion to an advanced digestion technology can increase sludge stability, reduce pathogen content, increase biogas production, and also increase ammonia concentrations recycled back to the liquid treatment train. Limited information is available to assess whether the higher ammonia recycle loads from an anaerobic sludge digestion upgrade would lead to higher discharge effluent ammonia concentrations. Biowin, a commercially available wastewater treatment plant simulation package, was used to predict the effects of anaerobic digestion upgrades on the liquid train performance, especially effluent ammonia concentrations. A factorial analysis indicated that the influent total Kjeldahl nitrogen (TKN) and influent alkalinity each had a 50-fold larger influence on the effluent NH3 concentration than either the ambient temperature, liquid train SRT or anaerobic digestion efficiency. Dynamic simulations indicated that the diurnal variation in effluent NH3 concentration was 9 times higher than the increase due to higher digester VSR. Higher recycle NH3 loads caused by upgrades to advanced digestion techniques can likely be adequately managed by scheduling dewatering to coincide with periods of low influent TKN load and ensuring sufficient alkalinity for nitrification.

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Effect of substrate pretreatment on biogas production through anaerobic digestion of food waste

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2017.06.178 ◽

2017 ◽

Vol 42 (42) ◽

pp. 26522-26528 ◽

Cited By ~ 57

Author(s):

B. Deepanraj ◽

V. Sivasubramanian ◽

S. Jayaraj

Keyword(s):

Anaerobic Digestion ◽

Food Waste ◽

Biogas Production ◽

Substrate Pretreatment

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Biogas Production Using Anaerobic Digestion of Industrial Waste

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.832.55 ◽

2016 ◽

Vol 832 ◽

pp. 55-62

Author(s):

Ján Gaduš ◽

Tomáš Giertl ◽

Viera Kažimírová

Keyword(s):

Anaerobic Digestion ◽

Industrial Waste ◽

Large Scale ◽

Biogas Production ◽

Biogas Plant ◽

Parallel Operation ◽

Paper Production ◽

Biochemical Conversion ◽

Mixed Biomass ◽

Economic Balance

In the paper experiments and theory of biogas production using industrial waste from paper production as a co-substrate are described. The main aim of the experiments was to evaluate the sensitivity and applicability of the biochemical conversion using the anaerobic digestion of the mixed biomass in the pilot fermentor (5 m3), where the mesophillic temperature was maintained. It was in parallel operation with a large scale fermentor (100 m3). The research was carried out at the biogas plant in Kolíňany, which is a demonstration facility of the Slovak University of Agriculture in Nitra. The experiments proved that the waste arising from the paper production can be used in case of its appropriate dosing as an input substrate for biogas production, and thus it can improve the economic balance of the biogas plant.

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