Development of a Modified Three-Stage Methane Production Process Using Food Wastes

Kim, Si Wouk; Park, Jin Y.; Kim, Jung K.; Cho, Jae H.; Chun, Young Nam; Lee, In H.; Lee, Jung S.; Park, Jin S.; Park, Don-Hee

doi:10.1385/abab:84-86:1-9:731

Cited by 18 publications

(4 citation statements)

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“…From the secondary reactor, output liquids and solids are transferred to a tertiary reactor where methane-rich biogas is produced. Likewise, in a two-stage system, a part, or all of the effluent from the tertiary reactor can be recirculated back to the digester depending on the targeted HRT and process efficiency [159]. According to the study by Kim et al [159], using a three-stage reactor, COD removal efficiency of over 95% was achieved for food waste AD.…”

Section: Configurationmentioning

confidence: 99%

“…Likewise, in a two-stage system, a part, or all of the effluent from the tertiary reactor can be recirculated back to the digester depending on the targeted HRT and process efficiency [159]. According to the study by Kim et al [159], using a three-stage reactor, COD removal efficiency of over 95% was achieved for food waste AD. In a more recent study [7], an 11-23% increase in methane yield for a three-stage codigestion of food waste and horse manure was reported.…”

Section: Configurationmentioning

confidence: 99%

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A Review of the Role of Critical Parameters in the Design and Operation of Biogas Production Plants

et al. 2019

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Many operating parameters, individually or together, may influence the performance of anaerobic digestion towards biogas or digestate yield and quality maximization. The most preferred method of optimizing an anaerobic digestion plant often relies on how carefully the crucial parameters, such as pH, temperature, organic loading rate, hydraulic retention time, and pressure, are chosen. There is a large amount of literature available on optimization of anaerobic digestion; however, given the continued development and implementation of innovative technologies, together with the introduction of increasingly complex systems, it is necessary to update present knowledge on process parameters and their role on operational ranges and flexibilities in real-life anaerobic digestion system. Accordingly, the present review discusses the importance of the selection of operational parameters in existing technologies and their impact on biogas yield. Notably, the four broad areas of feedstock utilization (substrate, inoculum, codigestion and pretreatment), process condition (pH, temperature, pressure, and reactor design), reactor control (HRT and OLR) and inhibition (Ammonia and VFAs) are covered in this review. In addition, particular emphasis is placed on the most recent innovations that have been or may be implemented in current or future biogas plants.

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Section: Configurationmentioning

confidence: 99%

Section: Configurationmentioning

confidence: 99%

A Review of the Role of Critical Parameters in the Design and Operation of Biogas Production Plants

et al. 2019

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“…Hydrolysis reactor uses CSTR while methanogenesis reactor uses CSTR, AFB i.e., anaerobic fixed bed or USAB (de Lemos Chernicharo 2007). The acetogenesis step is carried out in a separate reactor in the three-stage system (Kim et al 2000). The basic design of the three-stage reactor is shown in Fig.…”

Section: Multi-stage Ad Processmentioning

confidence: 99%

Green Technology for Biogas Production through Anaerobic Digestion: An Effective Biomass Management Strategy

Dhull,

Kumar,

Yadav

et al. 2023

Preprint

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Taking advantage of the growing production of different kinds of biomass into the waste-to-energy concept has been seen as a global trend of emerging applications. The huge generation of biomass by agriculture and industries is an enormous opportunity as a feedstock for anaerobic digestion (AD) to produce biogas. About 181.5 billion tonnes of lignocellulosic biomass (LCB) are produced annually worldwide, including underutilized agricultural waste and greenhouse biomass materials. This has been considered as a potential source of bioenergy and sustainable means for escalating environmental issues especially, concerning the effects of fossil fuels. This review focuses on the different types of feedstocks available in the market, especially in India and their biogas production potential. The feedstock selection in the basic and foremost important step for accessing the biogas yield. This also discusses the stages of the AD process in detail responsible for the production of biogas. Further, the limitations associated with the AD process have been focused upon. The parameters and the basic reactor configuration are vital for the biogas yield. Therefore, the design and the configuration of the biogas digester/reactors are discussed in detail for shedding light on their importance in the AD process. The improvements and future prospects of this technology have also been talked about for proper utilization of the feedstocks for biogas production.

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“…One of the first studies on three-stage AD originate from Kim et al (2000). Under mesophilic conditions, FW was treated in a STR for hydrolysis/acidogenesis and two UASB for acidogenesis/ acetogenesis/methanogenesis.…”

Section: Three-stage Processesmentioning

confidence: 99%

Phase Separation in Anaerobic Digestion: A Potential for Easier Process Combination?

et al. 2021

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The flexibilization of bioenergy production has the potential to counteract partly other fluctuating renewable energy sources (such as wind and solar power). As a weather-independent energy source, anaerobic digestion (AD) can offer on-demand energy supply through biogas production. Separation of the stages in anaerobic digestion represents a promising strategy for the flexibilization of the fermentative part of biogas production. Segregation in two reactor systems facilitates monitoring and control of the provision of educts to the second methanogenic stage, thus controlling biogas production. Two-stage operation has proven to reach similar or even higher methane yields and biogas purities than single-stage operation in many different fields of application. It furthermore allows methanation of green hydrogen and an easier combination of material and energy use of many biogenic raw and residual biomass sources. A lot of research has been conducted in recent years regarding the process phase separation in multi-stage AD operation, which includes more than two stages. Reliable monitoring tools, coupled with effluent recirculation, bioaugmentation and simulation have the potential to overcome the current drawbacks of a sophisticated and unstable operation. This review aims to summarize recent developments, new perspectives for coupling processes for energy and material use and a system integration of AD for power-to-gas applications. Thereby, cell physiological and engineering aspects as well as the basic economic feasibility are discussed. As conclusion, monitoring and control concepts as well as suitable separation technologies and finally the data basis for techno-economic and ecologic assessments have to be improved.

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Development of a Modified Three-Stage Methane Production Process Using Food Wastes

Cited by 18 publications

References 0 publications

A Review of the Role of Critical Parameters in the Design and Operation of Biogas Production Plants

A Review of the Role of Critical Parameters in the Design and Operation of Biogas Production Plants

Green Technology for Biogas Production through Anaerobic Digestion: An Effective Biomass Management Strategy

Phase Separation in Anaerobic Digestion: A Potential for Easier Process Combination?

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