Characteristics of Biogas Production from Organic Wastes Mixed at Optimal Ratios in an Anaerobic Co-Digestion Reactor

Song, Young‐Ju; Oh, Kyung-Su; Lee, Beom; Pak, Daewon; Cha, Ji-Hwan; Park, Jun-Gyu

doi:10.3390/en14206812

Cited by 17 publications

(13 citation statements)

References 37 publications

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“…Then, to maximize production, they optimized the mixture ratio. A similar study was conducted by Ghouali et al [27], Song et al [28] and Asadi and McPhedran [29], while Sarker et al [30] investigated the critical parameters and their role in the design and operation of biogas production plants.…”

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confidence: 80%

Possible Ways of Extending the Biogas Plants Lifespan after the Feed-In Tariff Expiration

2022

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Energy production from biogas can play a pivotal role in many European countries, and specifically in Italy, for three main reasons: (i) fossil fuels are scarce, (ii) imports cover large shares of internal demand, and (iii) electricity and heat production from biogas is already a consolidated business. Nonetheless, in Italy, current legislation and incentive policies on electricity generation from biogas are causing a stagnation of the entire sector, which may lead to the shutting down of many in-operation plants in the years 2027–2028 and the consequent loss of 573 MWel over a total of 1400 MWel. This work aims to investigate the potential of revamping biogas power plants in prolonging operation until the end of the plants’ useful life, regardless of the implementation of a new government’s incentive schemes. Based on the time-series analysis of electricity prices in Italy and a case study representative of the vast set of in-operation power plants, our findings show that 700 plants will likely shut down between 2027 and 2028 unless the government adequately rewards electricity produced and fed into the grid via incentive schemes. In detail, our results show that the investment to revamp the plant exhibits a highly negative Net Present Value.

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confidence: 80%

Possible Ways of Extending the Biogas Plants Lifespan after the Feed-In Tariff Expiration

2022

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“…Таким чином, метою статті є представлення цілісного підходу, однакового у застосуванні для побудови обох типів математичних моделей і на його основі розробка математичних моделей для відображення статичних та динамічних характеристик об'єкта і процесу. Водночас використання методів інтервального аналізу даних для ідентифікації зазначених двох типів математичних моделей ґрунтуватиметься на використанні є диного підходу на основі інтелектуальних обчислень, які реалізовано в ройових алгоритмах [15][16][17][18], а саме в поведінковому алгоритмі колонії медоносних бджіл [19][20][21].…”

Section: постановка проблемиunclassified

Моделювання Характеристик Процесів У Біогазових Установках На Основі Аналізу Інтервальних Даних

ДИВАК,

ЗАБЧУК

2024

Вісник Хмельницького національного університету. Серія: Технічн

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The problems of the research presented in the work relate to mathematical modeling in order to reflect the relationship between the main characteristic of the process and the factors that affect it, as well as the dynamics of the main characteristic of the process, which is determined by the acidity of the substrate in the bioreactor. To build mathematical models of both types, it is proposed to use the methods of parametric and structural identification of models of static objects and discrete models of object dynamics based on the analysis of interval data. An universal approach based on metaheuristic optimization algorithms is proposed and substantiated for the identification of both types of models. These methods, in turn, use mechanisms of self-organization and self-adaptation in the process of finding an optimal or quasi-optimal solution. In particular, the work uses computational algorithms built on the basis of artificial bee colony algorithms. The method is implemented using data presented in interval form. The proposed universal method was tested on the construction of a mathematical model that reflects the dependence between the pH of the fermentation medium and the volume of the loaded bio-raw material in the form of its dry and liquid parts, the temperature in the bioreactor and the humidity of the dry part of the bio-raw material. Another mathematical model built in the work reflects the dynamics of the acidity indicator pH of the fermentation medium depending on the ratio of the mass of the loaded dry bio-raw material to the volume of the loaded liquid bio-raw material Both obtained interval mathematical models can be applied to control processes in biogas plants.

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“…Anaerobic co-digestion (AcoD) emerged as a solution to mitigate the limitations of mono-digestion by concurrently digesting multiple substrates. The simultaneous digestion of livestock manure with other substrates like food waste, organic fractions of municipal solid waste, agricultural residues, sewage sludge, slaughterhouse effluents, and algae significantly enhances CH 4 production [14][15][16][17][18]. The improved CH 4 yield can be attributed to the role of manure as a carrier for drier substrates due to high moisture.…”

Section: Introductionmentioning

confidence: 99%

A Review on the Anaerobic Co-Digestion of Livestock Manures in the Context of Sustainable Waste Management

Kadam,

Jo,

Lee

et al. 2024

Energies

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As the worldwide demand for meat per person is continuously increasing, there is a corresponding rise in the number of livestock animals, leading to an increase in livestock manure. Selecting appropriate treatment technologies for livestock manures is still a complex task and considerable debates over this issue persist. To develop a more comprehensive understanding of the manure treatment framework, this review was undertaken to assess the most utilized manure management technologies and underscore their respective challenges. Anaerobic digestion has become a commercial reality for treating livestock manures. However, the mono-digestion of single substrates comes with certain drawbacks associated with manure characteristics. Anaerobic co-digestion, involving the utilization of multiple feedstocks, holds the potential to overcome these limitations. Extensive research and development have underscored numerous intrinsic benefits of co-digestion. These include improved digestibility resulting from the synergistic effects of co-substrates and enhanced process stability. This review underscores the limitations associated with the mono-digestion of livestock manures and critically evaluates the advantages of their co-digestion with carbon-rich substrates. Additionally, this review delves into key livestock manure management practices globally, emphasizing the significance of co-digesting livestock manures while addressing the progress and challenges in this field.

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Characteristics of Biogas Production from Organic Wastes Mixed at Optimal Ratios in an Anaerobic Co-Digestion Reactor

Cited by 17 publications

References 37 publications

Possible Ways of Extending the Biogas Plants Lifespan after the Feed-In Tariff Expiration

Possible Ways of Extending the Biogas Plants Lifespan after the Feed-In Tariff Expiration

Моделювання Характеристик Процесів У Біогазових Установках На Основі Аналізу Інтервальних Даних

A Review on the Anaerobic Co-Digestion of Livestock Manures in the Context of Sustainable Waste Management

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