The Impact of Alkali Pretreatment and Organic Solvent Pretreatment on Biogas Production from Anaerobic Digestion of Food Waste

Shitophyta, Lukhi Mulia; Padya, Syaeful; Zufar, Ahmad; Rahmawati, Novia

doi:10.12911/22998993/155022

Cited by 5 publications

(5 citation statements)

References 15 publications

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“…The European Union's strategy to reduce methane emissions, announced on 14 October 2020 by a communication from the European Commission to the European Parliament and the European Council, is consistent with the issue involving the acquisition and use of biogas, and thus the use of methane as the second most important gas after carbon dioxide responsible for global warming [40].…”

Section: Recommendations For Biogasmentioning

confidence: 89%

Balance and Energy Use of Biogas in Poland: Prospects and Directions of Development for the Circular Economy

Ciuła

Wiewiórska²,

Banaś

et al. 2023

Energies

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The production of biogas from biodegradable waste generated in all sectors of the economy in Poland is a key issue for the diversification of energy sources and climate neutrality. The biogas balances presented in the literature based on bio-waste often contain overly optimistic data, which in reality only represent the theoretical potential of biogas in Poland. The pragmatic approach presented in this study fills a gap in research by presenting a technical balance of biogas (real potential) that can be realistically achieved. The objective of the work was to perform a biogas balance in the context of electricity and heat generation in cogeneration units. The tests made it possible to estimate the technical potential of biogas, depending on the source of its generation, the possibility of its conversion to biomethane and biohydrogen and the methods of its use. The research results showed a 30% increase in biogas potential on an annual basis compared to the current state, resulting in a 29% increase in electricity production and a 28% increase in heat production. The technical potential of biogas was estimated at 2186.62 million m3, which would allow for the production of 4627.06 GWh of electricity and 1869.64 TG of heat. The technical balance of biogas and the potential energy production can serve as input material for developing plans and strategies for the development of renewable energy sources in Poland. The work is consistent with the issues of balancing the renewable energy resources from biogas and the methods of conversion into other energy carriers using sustainable energy transformations in order to optimise energy production processes.

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Section: Recommendations For Biogasmentioning

confidence: 89%

Balance and Energy Use of Biogas in Poland: Prospects and Directions of Development for the Circular Economy

Ciuła

Wiewiórska²,

Banaś

et al. 2023

Energies

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“…The study conducted by Shitophyta et al (2022) was motivated by a gap in the literature on utilizing alkali and organic solvent pre-treatment in the anaerobic digestion of food waste. Based on that, the effect of alkali pre-treatment and organic solvent pre-treatment on biogas yield is determined.…”

Section: Tablementioning

confidence: 99%

“…It is interesting to note that the majority of these studies were conducted experimentally in the laboratory. For instance, for pre-treatment techniques, studies were carried out by Baradar et al (2016a), Abraham et al (2020), Shitophyta et al (2022), Lee et al (2019); Wadchasit et al (2020), Nugraha et al (2018) and Karimu et al (2019). On the other hand, some of the mathematical model studies include Wang et al (2020); Obileke et al (2021); Aklil and Waday (2021); Iweka et al (2021);Liano et al (2021); Beltramo et al (2016); Taherzadeh et al (2008); Asadi et al (2020); Mougari et al (2021); Xu et al (2014); Rossi et al (2022) and Diong and Lim (2022a).…”

Section: Introductionmentioning

confidence: 99%

Improvement of biogas yields in an anaerobic digestion process via optimization technique

Obileke,

Makaka,

Tangwe

et al. 2024

Environ Dev Sustain

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Anaerobic digestion for biogas production was first used in 1895 for electricity generation and treating municipal solid waste in 1939. Since then, overcoming substrate recalcitrance and methane production has been one way to assess the quality of biogas production in a sustainable manner. These are achieved through pre-treatment methods and mathematical modeling predictions. However, previous studies have shown that optimisation techniques (pre-treatment and mathematical modeling) improve biogas yield efficiently and effectively. The good news about these techniques is that they address the challenges of low efficiency, cost, energy, and long retention time usually encountered during anaerobic digestion. Therefore, this paper aims to comprehensively review different promising pre-treatment technologies and mathematical models and discuss their latest advanced research and development, thereby highlighting their contribution towards improving the biogas yield. The comparison, application, and significance of findings from both techniques, which are still unclear and lacking in the literature, are also presented. With over 90 articles reviewed from academic databases (Springer, ScienceDirect, SCOPUS, Web of Science, and Google Scholar), it is evident that artificial neural network (ANN) predicts and improves biogas yield efficiently and accurately. On the other hand, all the pre-treatment techniques are unique in their mode of application in enhancing biogas yield. Hence, this depends on the type of substrate used, composition, location, and conversion process. Interestingly, the study reveals research findings from authors concerning the enhancement of biogas yield to arrive at a conclusion of the best optimization technique, thereby making the right selection technique. Graphical Abstract

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“…Another "product" is landfill gas (LFG), which is formed during anaerobic digestion of the biodegradable fraction in a bed of waste subjected to appropriate compression. LFG, containing large amounts of methane and carbon dioxide, is a source of fugitive emissions from the landfill surface into the atmospheric air, which are greenhouse gases that contribute to climate change on Earth [14]. Therefore, a key issue during the operation of landfills where bio-waste has been stored is to reduce the air emissions of the biogas generated [15,16].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Efficiency of Landfill Gas Treatment for Power Generation in a Cogeneration System in Terms of the European Green Deal

Ciuła,

Generowicz,

Gronba-Chyła

et al. 2024

Sustainability

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Climate change and environmental degradation pose a threat to Europe and the world. The mechanism that will address these challenges is the European Green Deal, which envisions transforming the EU into a modern, resourceful, economical and competitive economy, aiming for zero greenhouse gas emissions. Landfill gas generated in a landfill waste deposit poses a threat to the environment and people. In this aspect, its capture, treatment and safe neutralization or use for energy purposes are important. Treatment of landfill gas, which is the fuel for gas engines in cogeneration units, is crucial for their proper operation and the quantity and quality of electricity and heat generated. The purpose of this study was to perform research to determine the hydrogen sulfide content of landfill gas and the actual efficiency of hydrogen sulfide removal from the gas using activated carbon. The tests performed constitute the basis for the reliable operation of gas engines in cogeneration installations and are dedicated mainly to the operators of these installations. Accordingly, three measurement campaigns were carried out, each with 42 measurements, the first for the “raw” gas obtained directly from the landfill, the second for the gas before entering the carbon filter and the third after its treatment. In addition, surface analysis was performed, and the elemental composition of the “fresh” molded activated carbon constituting the filter material was determined using a scanning electron microscope with an EDS system. The results showed a high elemental content of carbon in the test sample at 92.78%, while the efficiency of hydrogen sulfide removal from landfill gas by activated carbon, calculated from the measurements, was 97.05%. The obtained test results confirmed the validity of using impregnated activated carbon to remove hydrogen sulfide from landfill gas and its high adsorption efficiency, which can consequently result in reliable operation of the gas engine in the cogeneration unit and ultimately fit in with the objectives of the European Green Deal. The research results are an incentive for operators of cogeneration installations to systematically examine the quality of landfill gas and the efficiency of biogas purification devices.

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The Impact of Alkali Pretreatment and Organic Solvent Pretreatment on Biogas Production from Anaerobic Digestion of Food Waste

Cited by 5 publications

References 15 publications

Balance and Energy Use of Biogas in Poland: Prospects and Directions of Development for the Circular Economy

Balance and Energy Use of Biogas in Poland: Prospects and Directions of Development for the Circular Economy

Improvement of biogas yields in an anaerobic digestion process via optimization technique

Analysis of the Efficiency of Landfill Gas Treatment for Power Generation in a Cogeneration System in Terms of the European Green Deal

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