Biodegradation of rice straw under anaerobic digestion

Candia-García, Cristian; Delgadillo-Mirquez, Liliana; Hernandez, Mauricio

doi:10.1016/j.eti.2018.02.009

Cited by 23 publications

(5 citation statements)

References 21 publications

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“…2019 [94] Analyzed anaerobic digestion of heavy-metal-contaminated rice straw inoculated with waste-activated sludge. 2018 [95] Provided useful parameters to evaluate biogas production via anaerobic digestion of rice straw 2018 [96] Investigated the effect of trace element (TE) addition and NaOH pretreatment on the anaerobic digestion of rice straw.…”

Section: [93]mentioning

confidence: 99%

Potential of Rice Industry Biomass as a Renewable Energy Source

et al. 2019

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Fossil fuel depletion, along with its ever-increasing price and detrimental impact on the environment, has urged researchers to look for alternative renewable energy. Of all the options available, biomass presents a very reliable source due to its never-ending supply. As research on various biomasses has grown in recent years, waste from these biomasses has also increased, and it is now time to shift the focus to utilizing these wastes for energy. The current waste management system mainly focuses on open burning and soil incorporation as it is cost-effective; however, these affect the environment. There must be an alternative way, such as to use it for power generation. Rice straw and rice husk are examples of such potential biomass waste. Rice is the main food source for the world, mostly in Asian regions, as most people consume rice daily. This paper reviews factors that impact the implementation of rice-straw-based power plants. Ash content and moisture content are important properties that govern combustion, and these vary with location. Logistical improvements are required to reduce the transport cost of rice husk and rice straw, which is higher than the transportation cost of coal.

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Section: [93]mentioning

confidence: 99%

Potential of Rice Industry Biomass as a Renewable Energy Source

et al. 2019

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“…Due to the recalcitrant lignocellulosic structure, it is Energies 2021, 14, 3960 2 of 15 difficult to hydrolyze rice straw, resulting in the low AD efficiency [7]. As a result, various pretreatment methods have been applied to increase the accessibility of microorganisms to lignocellulose [8]. However, so far, no effective method has been found to strike a balance between economy and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

Effect of Particle Size on the Aerobic and Anaerobic Digestion Characteristics of Whole Rice Straw

Luo

Gong

et al. 2021

Energies

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The effect of reducing particle size on physical properties, the methane yield and energy flow were investigated through the biochemical methane potential (BMP) experiment of aerobic-anaerobic digestion (AAD) of rice straw (RS). The whole straw was crushed through four sieves of different aperture sizes (1, 3, 5, and 7 mm) to obtain the actual and non-uniform particle size distribution (PSD). The results indicated that the actual particle sizes were normally or logarithmic normally distributed. Reducing particle size could significantly promote the aerobic hydrolysis and acidification process, increase the content of volatile fatty acids (VFAs) from 4408.78 to 6225.15 mg/L and the degradation of volatile solids (VS) from 40.56% to 50.49%. The results of path analysis suggested that particle size reduction played an important role in improving lignocellulosic degradability, which was the main factor affecting methane production with the comprehensive decision of 0.4616. The maximum methane production obtained at 1 mm sieve size was 176.47 mLCH4g−1 VS. The phyla of Firmicutes (61.5%), Proteobacteria (9.3%), Chloroflexi (8.3%), Bacteroidetes (4.1%), Cyanobacteria/Chloroplast (4.6%) were mainly responsible for VFAs production and lignocellulose degradation. However, the net negative energy balance was observed at the 1 mm sieve size due to the increased energy input. Therefore, the optimum sieve size for AAD was 3 mm.

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“…At the first 10 days digestion, the biogas production was high. Formation of biogas started after inoculation and increase until achieved the peak [24]. Usually, the formation of methane was followed by reduction of pH, range pH of methanogenic process were found to lie within (6.5-8).…”

Section: Organic Loading Rate (Olr)mentioning

confidence: 99%

Kinetic of Biogas Production in a Batch Anaerobic Digestion Process with Interference of Preservative Material of Sodium Benzoate

Sumantri

Hadiyanto

2020

Bull. Chem. React. Eng. Catal.

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Sodium benzoate is a preservative compounds which are widely used for both food and beverage products. The treatment of waste water containing this compound was normally conducted in a anaerobic digestion (AD) using a batch reactor system at a room temperature. The anaerobic process eventually produced biogas which can be used for bioenergy. This research was aimed to evaluate the production of biogas from by synthetic solution models containing sodium benzoate (SB). The experiment was performed in a variation of Mixed Liquor Suspended Solid (MLSS) of 4.8 and 7.2 g/L, and initial sodium benzoate concentration of 400, 600, and 800 mg/L. The digestion was performed at 60 days, while the biogas content was measured every 2 days. The results indicated a reduction in the cumulative biogas by the addition of sodium benzoate, compared to the control condition. Moreover, the decrease in organic loading rate (OLR) of SB in wastewater follows the first order kinetic with kinetic rate constant (k) was 0.0432 to 0.1254 (day−1) for MLSS of 4.8 g/L and 0.0276 to 0.0372 (day−1) for 7.2 g/L MLSS. Copyright © 2020 BCREC Group. All rights reserved

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Biodegradation of rice straw under anaerobic digestion

Cited by 23 publications

References 21 publications

Potential of Rice Industry Biomass as a Renewable Energy Source

Potential of Rice Industry Biomass as a Renewable Energy Source

Effect of Particle Size on the Aerobic and Anaerobic Digestion Characteristics of Whole Rice Straw

Kinetic of Biogas Production in a Batch Anaerobic Digestion Process with Interference of Preservative Material of Sodium Benzoate

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