A combination anaerobic digestion scheme for biogas production from dairy effluent—CSTR and ABR, and biogas upgrading

Jürgensen, Lars; Ehimen, Ehiaze Augustine; Born, Jens; Holm‐Nielsen, Jens Bo

doi:10.1016/j.biombioe.2017.04.007

Cited by 42 publications

(11 citation statements)

References 25 publications

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“…up to 80 g COD/L) or too low (e.g. 2 to 10 g COD/L) of COD concentrations [73,74]. Studies have explored incorporating media into CSTRs to promote methane production and reduce biomass washout [74].…”

Section: Continuously Stirred Tank Reactormentioning

confidence: 99%

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From Fossil Fuels to Renewable Biogas Production from Biomass Based Feedstock – A Review of Anaerobic Digester Systems

Dölle

Hughes

Kurzmann

2020

JENRR

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Three-quarters of the global energy consumption is expected to come from fossil fuels by 2040 despite many drawbacks to the world’s reliance on fossil fuels. The primary drawback of fossil fuels is in procuring, transporting, refining, and combusting them which generates pollution biproducts, global warming, which in turn generate a plethora of associated problems. Biomass as a renewable resource and its conversion into renewable fuel products can offset use and drawback of fossil fuels. Anaerobic digestion is known since the 10thcentury BC has become today a versatile tool to produce renewable energy in form of biogas from many biomass-based feedstock sources. These sources can be agriculturally based such as livestock waste, energy crops, plant (lignocellulosic) based, forest residues, or industrial and municipal waste such food waste, wastewater treatment sludge, distiller grains and food product residues. Feed stocks can be used in anaerobic fermentation processes as single or co-digest feedstock. Each feedstock represents a challenge on its own for anaerobic digestion processes in order achieve good operational stability and good biogas production. Selecting a suitable anaerobic fermentation process from today’s available technical sound processes described in this review is essential for future fossil fuel independence.

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Section: Continuously Stirred Tank Reactormentioning

confidence: 99%

“…2 to 10 g COD/L) of COD concentrations [73,74]. Studies have explored incorporating media into CSTRs to promote methane production and reduce biomass washout [74]. CSTRs are frequently used for anaerobic wastewater treatment prior to the 1970's [67].…”

Section: Continuously Stirred Tank Reactormentioning

confidence: 99%

From Fossil Fuels to Renewable Biogas Production from Biomass Based Feedstock – A Review of Anaerobic Digester Systems

Dölle

Hughes

Kurzmann

2020

JENRR

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“…Indeed, this technology is a good option for scientific research as a part of mixed systems, but it is difficult to realize the application of such a bioreactor in the industry as a result of the HRT restriction (Usack et al, 2017). For instance, CSTR and anaerobic baffled reactor (ABR) in series were able to treat low strength dairy wastewater and removed average of 82% COD with a biogas yield of 0.26 m 3 /kg, when fed at constant HRT of 1.6 days in the ABR with OLR between 1.25 and 4.50 kg COD/(m 3 • d) (Jürgensen et al, 2018). Two-stage CSTR-UFAF bi-reactors is a suitable system for anaerobic fermentation to efficiently degrade the liquid fraction of organic municipal waste, with an overall 80% of COD degradation efficiency at high OLR (13.1 kg COD/(m 3 • d)) (Held et al, 2002).…”

Section: Two-stage Biological Systemmentioning

confidence: 99%

Biological Treatment of Dairy Wastewater: A Mini Review

Zhao¹,

Wu²,

Young³

et al. 2020

J ENVIRON INFORM LET

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“…Therefore, if the study could extend into economic and social dimensions in the future, a thorough understanding on the sustainability of the system could be achieved. According to Coyle and Rebow [42] and Jürgensen et al [43], sustainability in energy systems is usually associated with energy efficiency and energy with lower emissions. An evaluation tool like the LCA can be used to assess the environmental performance and determine the hotspots along the supply chains, thus providing a comprehensive assessment of the sustainability of the renewable energy system.…”

Section: Life Cycle Sustainability Assessmentmentioning

confidence: 99%

Bioenergy for a Cleaner Future: A Case Study of Sustainable Biogas Supply Chain in the Malaysian Energy Sector

et al. 2020

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A life cycle assessment (LCA)-based environmental sustainability evaluation conceptual framework of biogas production has been proposed to improve the sustainability of biogas supply chains. The conceptual framework developed in this study can be used as a guideline for the related stakeholders and decision makers to improve the quality and enhance the sustainability of biogas production in Malaysia as well as promoting biogas as a clean, reliable and secure energy. A case study on an LCA analysis of a zero waste discharge treatment process has been conducted. In the zero discharge treatment system, biogas can be produced with a maximum water recycle and reuse. It was indicated that the biogas production and zero discharge treatment of a palm oil mill effluent were environmentally sustainable as the system utilized organic waste to produce bioenergy and achieved zero discharge. However, there were other aspects that should be taken into consideration, particularly regarding the sources of electricity and upstream activity, to ensure the sustainability of the system holistically.

show abstract

A combination anaerobic digestion scheme for biogas production from dairy effluent—CSTR and ABR, and biogas upgrading

Cited by 42 publications

References 25 publications

From Fossil Fuels to Renewable Biogas Production from Biomass Based Feedstock – A Review of Anaerobic Digester Systems

From Fossil Fuels to Renewable Biogas Production from Biomass Based Feedstock – A Review of Anaerobic Digester Systems

Biological Treatment of Dairy Wastewater: A Mini Review

Bioenergy for a Cleaner Future: A Case Study of Sustainable Biogas Supply Chain in the Malaysian Energy Sector

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