Starting-up low temperature dry anaerobic digestion of cow feces and wheat straw

Saady, Noori M. Cata; Massé, Daniel I.

doi:10.1016/j.renene.2015.11.066

Cited by 12 publications

(2 citation statements)

References 18 publications

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“…Rajagopal et al [48] proved that psychrophilic AD is indicated with high process stability, which was also confirmed by other studies [49,50]. At the psychrophilic level, the additional energy input to maintain AD temperature is reduced or nullified depending on the ambient temperatures [32].…”

Section: Operating Temperatures In Admentioning

confidence: 64%

Influence of Digester Temperature on Methane Yield of Organic Fraction of Municipal Solid Waste (OFMSW)

et al. 2021

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This study evaluates the anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) and digested sewage sludge (DSS) at lowered temperatures. AD batch tests for CH4 yield determination were carried out with DSS as inoculum between 23 and 40 °C. All results were related to organic dry matter and calculated for standard conditions (1013 hPa, 0 °C). The AD experiments at 40 °C and at 35 °C delivered specific CH4 yields of 325 ± 6 mL/g and 268 ± 27 mL/g for OFMSW alone. At lower temperatures, specific CH4 yields of 364 ± 25 mL/g (25 °C) and 172 ± 21 mL/g (23 °C) were reached. AD at 25 °C could be beneficial regarding energy input (heating costs) and energy output (CH4 yield). Plant operators could increase AD efficiencies by avoiding heating costs. The co-digestion of OFMSW together with DSS could lead to further synergies such as better exploitation of the energy potentials of DSS, but the digestate utilization could become problematic due to hygienic requirements. Efficiency potentials through lowered operating temperatures are limited. In further research, lowered process temperatures could be applied in the AD of energy crops due to large numbers of existing plants.

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Section: Operating Temperatures In Admentioning

confidence: 64%

Influence of Digester Temperature on Methane Yield of Organic Fraction of Municipal Solid Waste (OFMSW)

et al. 2021

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“…Psychrophilic temperature range has an adverse effect on the microbial activity in the anaerobic digestion process thus decreasing the biogas generation. The hydrolysis step in the anaerobic digestion process was defined as the ratelimiting step in the psychrophilic temperature range by several researchers (Saady and Massé, 2016;León et al 2018). This is an important factor that decreases the applicability of the co-digestion in psychrophilic AnMBR because causing lower methane conversion efficiency.…”

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Cengiz,

Guven,

Ozgun

et al. 2024

Rev Environ Sci Biotechnol

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Today, the transition to renewable energy from conventional energy practices is more important than ever to establish energy security and mitigate climate change. The wastewater treatment plants (WWTP) consume a remarkable amount of energy and cause significant greenhouse gas emissions. The energy balance of WWTP can be improved by implementing energy-efficient applications such as anaerobic digestion. However, most of the existing WWTPs utilize only sewage sludge in conventional anaerobic digesters (CAD) which results in low biogas generation. Generally, co-digestion is indicated as an effective solution for the low biogas generation faced in mono-digestion. Moreover, recently, anaerobic membrane bioreactors (AnMBR) have been promoted as a prominent alternative to CADs. This paper overviews the current situation of co-digestion applications by AnMBRs for municipal WWTPs. Furthermore, the environmental and economic aspects of these applications were reviewed. Lastly, challenges and future perspectives related to the co-digestion applications by AnMBR were thoroughly discussed. Graphical Abstract

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Enhancement of Biogas Production from Swine Wastewater Using Electrochemical Pretreatment and Anaerobic Co-digestion with Rice Straw

Lourinho

Brito

2021

Proceedings of the 1st International Conference on Water Energy Food and Sustainability (ICoWEFS 2021)

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Starting-up low temperature dry anaerobic digestion of cow feces and wheat straw

Cited by 12 publications

References 18 publications

Influence of Digester Temperature on Methane Yield of Organic Fraction of Municipal Solid Waste (OFMSW)

Influence of Digester Temperature on Methane Yield of Organic Fraction of Municipal Solid Waste (OFMSW)

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Enhancement of Biogas Production from Swine Wastewater Using Electrochemical Pretreatment and Anaerobic Co-digestion with Rice Straw

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