Status of biogas technologies and policies in South Korea

Kim, Yong‐Sung; Yoon, Young-Man; Kim, Chang‐Hyun; Giersdorf, Jens

doi:10.1016/j.rser.2012.02.075

Cited by 32 publications

(16 citation statements)

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“…Rural renewable energy systems have already been successfully certified in various countries as a complete small-scale household energy generator pattern offering the best option to supply electricity and daily energy consumption, especially to remote and undeveloped areas [64][65][66]. Meanwhile, biogas as an important renewable energy source has been increasingly taken seriously as a national coping strategy for adapting energy crisis in many countries for widely use and expansively application [67][68][69][70][71].…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Dai

Chen

Hayat

et al. 2015

Renewable and Sustainable Energy Reviews

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Section: Conclusion and Discussionmentioning

confidence: 99%

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Dai

Chen

Hayat

et al. 2015

Renewable and Sustainable Energy Reviews

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“…Sewage sludge production in Korea is continuously increasing by 5.9% per year, and an estimated 27,080 (m 3 /d) of sewage sludge will be generated in 2020 [1]. The cost of sewage sludge treatment has also increased.…”

Section: Introductionmentioning

confidence: 99%

“…The cost of treatment in 2006 was approximately 87.7 billion KRW and is predicted to be more than 191.4 billion KRW in 2020 [2]. Currently, most of the sewage sludge in Korea is landfilled (17.9%), incinerated (30.6%), or recycled (51.6%), requiring large area and high energy costs for incineration and landfilling [1,2]. Accordingly, the sewage sludge treatment problem has become a very important issue for maintaining a healthy environment as well as reducing costs [3].…”

Section: Introductionmentioning

confidence: 99%

Influence of acidogenic fermented fish by-products with rice bran for sludge reduction and biogas recovery in anaerobic co-digestion

Choi

2020

Environmental Engineering Research

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The purpose of this study was to investigate the effects of acidogenic fermentation broth with rice bran (RFFB), tap water (TFFB), or raw fishery by-products (FBs) on sludge reduction and biogas production in an anaerobic co-digestion process. Acidogenic fermentation of FBs with rice bran was faster and produced more volatile fatty acids than that with tap water. Reduction efficiencies for chemical oxygen demand, volatile solids, and total solids were highest in RFFB. In the kinetic analysis, λ (d), which represents the duration of the lag phase, was shortest with RFFB (1.09 d) and highest in sewage sludge (8.86 d). As the loading amount of volatile solids and chemical oxygen demand increased, the amount of cumulative biogas also increased. Amount of produced methane and energy recovery were highest with RFFB (5.71 kWh). Anaerobic co-digestion of FFB and sewage sludge allowed reduced sludge and recovered energy using the discarded waste as an organic carbon source.

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“…Nationwide introduction will take time due to the large costs involved. Unfortunately, Korea lacks biogas-fuelled power technology, so much of the biogas is simply burned in incinerators [5].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Performance Analysis of a Biogas-Fuelled Micro-Gas Turbine with a Bottoming Organic Rankine Cycle for Sewage Sludge and Food Waste Treatment Plants

2017

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Abstract:In the Republic of Korea, efficient biogas-fuelled power systems are needed to use the excess biogas that is currently burned due to a lack of suitable power technology. We examined the performance of a biogas-fuelled micro-gas turbine (MGT) system and a bottoming organic Rankine cycle (ORC). The MGT provides robust operation with low-grade biogas, and the exhaust can be used for heating the biodigester. Similarly, the bottoming ORC generates additional power output with the exhaust gas. We selected a 1000-kW MGT for four co-digestion plants with 28,000-m 3 capacity. A 150-kW ORC system was selected for the MGT exhaust gas. We analysed the effects of the system size, methane concentration, and ORC operating conditions. Based on the system performance, we analysed the annual performance of the MGT with a combined heat and power (CHP) system, bottoming ORC, or both a bottoming ORC and CHP system. The annual net power outputs for each system were 7.4, 8.5, and 9.0 MWh per year, respectively.

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Status of biogas technologies and policies in South Korea

Cited by 32 publications

References 0 publications

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Influence of acidogenic fermented fish by-products with rice bran for sludge reduction and biogas recovery in anaerobic co-digestion

Thermodynamic Performance Analysis of a Biogas-Fuelled Micro-Gas Turbine with a Bottoming Organic Rankine Cycle for Sewage Sludge and Food Waste Treatment Plants

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