A comprehensive review on anaerobic digestion of organic fraction of municipal solid waste

Zamri, Mohd Faiz Muaz Ahmad; Hasmady, Saiful; Akhiar, Afifi; Ideris, Fazril; Shamsuddin, Abd Halim; Mofijur, M.; Fattah, I.M. Rizwanul; Mahlia, T.M.I.

doi:10.1016/j.rser.2020.110637

Cited by 269 publications

(113 citation statements)

References 215 publications

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“…Different technical routes are available to produce renewable energy from organic waste (Ma and Liu, 2019;Mofijur et al, 2020b;Zamri et al, 2021). Figure 1 summarizes the ways through which waste is transformed into energy (O'Hara and Melssen, 2013).…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

Uddin¹,

Siddiki²,

Mofijur³

et al. 2021

Front. Energy Res.

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Anaerobic digestion (AD) from organic waste has gained worldwide attention because it offers significant environmental and economic benefits. It can reduce the local waste through recycling which will conserve resources, reduce greenhouse gas emissions, and build economic resilience in the face of an uncertain future for energy production and waste disposal. The productive use of local waste through recycling conserves resources by reducing landfill space, the whole of life impacts of landfilling, and post-closure maintenance of landfills. Turning waste into a renewable energy source will assist the decarbonisation of the economy by reducing harmful emissions and pollutants. Therefore, this mini-review aims to summarise key factors and present valuable evidence for an efficient AD process. It also presents the pros and cons of different AD process to convert organic waste along with the reactor technologies. Besides, this paper highlights the challenges and the future perspective of the AD process. However, it is highlighted that for an effective and efficient AD process, appropriate temperature, pH, a strong inoculum to substrate ratio, good mixing and small particle sizes are important factors. The selection of suitable AD process and reactor is important because not all types of processes and reactors are not effective for processing organic waste. This study is of great importance for ongoing work on renewable energy generation from waste and provides important knowledge of innovative waste processing. Finally, it is recommended that the government should increase their support towards the AD technology and consider the unutilized significant potential of gaseous biofuel production.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

Uddin¹,

Siddiki²,

Mofijur³

et al. 2021

Front. Energy Res.

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“…The wastewater treatment from these industries uses physiochemical methods with recent technology emerging as the membrane technology, which uses the principle of reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF), thus facilitating the treatment of wastewater [98,99]. Biologically induced chemical trans-formation is taking place in three pathways: anaerobic digestion, aerobic digestion, and ethanol fermentation [100,101]. Based on the nature of biomass, these methods can be chosen for the primary products heat energy, compost, bioethanol, and methane which can be possibly transformed into secondary products such as electricity, biofuels, and bioproducts.…”

Section: Biomass Energy Potential In the Gcc Regionmentioning

confidence: 99%

Potential of Utilization of Renewable Energy Technologies in Gulf Countries

et al. 2021

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This critical review report highlights the enormous potentiality and availability of renewable energy sources in the Gulf region. The earth suffers from extreme air pollution, climate changes, and extreme problems due to the enormous usage of underground carbon resources applications materialized in industrial, transport, and domestic sectors. The countries under Gulf Cooperation Council, i.e., Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates, mainly explore those underground carbon resources for crude oil extraction and natural gas production. As a nonrenewable resource, these are bound to be exhausted in the near future. Hence, this review discusses the importance and feasibility of renewable sources in the Gulf region to persuade the scientific community to launch and explore renewable sources to obtain the maximum benefit in electric power generation. In most parts of the Gulf region, solar and wind energy sources are abundantly available. However, attempts to harness those resources are very limited. Furthermore, in this review report, innovative areas of advanced research (such as bioenergy, biomass) were proposed for the Gulf region to extract those resources at a higher magnitude to generate surplus power generation. Overall, this report clearly depicts the current scenario, current power demand, currently installed capacities, and the future strategies of power production from renewable power sources (viz., solar, wind, tidal, biomass, and bioenergy) in each and every part of the Gulf region.

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“…The AD process is a metabolic reaction consisting of four main steps in series (i.e., hydrolysis, fermentation or acidogenesis, acetogenesis and methanogenesis), where several types of anaerobic bacteria and archaea interact together to produce biogas (Figure 1) [3][4][5][6]. Moreover, the AD process is strictly dependent on the activity of the microorganisms, and its efficiency is affected by critical interactions between the microorganisms (i.e., known as syntrophic activities (which can be defined as close cooperation between at least two organisms based on the transfer of metabolic products from one to another)) within the digester [2,7].…”

Section: Introductionmentioning

confidence: 99%

Molecular Microbial Community Analysis as an Analysis Tool for Optimal Biogas Production

Hashemi

Lien

et al. 2021

Microorganisms

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The microbial diversity in anaerobic digestion (AD) is important because it affects process robustness. High-throughput sequencing offers high-resolution data regarding the microbial diversity and robustness of biological systems including AD; however, to understand the dynamics of microbial processes, knowing the microbial diversity is not adequate alone. Advanced meta-omic techniques have been established to determine the activity and interactions among organisms in biological processes like AD. Results of these methods can be used to identify biomarkers for AD states. This can aid a better understanding of system dynamics and be applied to producing comprehensive models for AD. The paper provides valuable knowledge regarding the possibility of integration of molecular methods in AD. Although meta-genomic methods are not suitable for on-line use due to long operating time and high costs, they provide extensive insight into the microbial phylogeny in AD. Meta-proteomics can also be explored in the demonstration projects for failure prediction. However, for these methods to be fully realised in AD, a biomarker database needs to be developed.

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A comprehensive review on anaerobic digestion of organic fraction of municipal solid waste

Cited by 269 publications

References 215 publications

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

Potential of Utilization of Renewable Energy Technologies in Gulf Countries

Molecular Microbial Community Analysis as an Analysis Tool for Optimal Biogas Production

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