Anaerobic Digestion and Biogas Utilization in Greece: Current Status and Perspectives

2012 ◽  
pp. 215-228
Author(s):  
Avraam Karagiannidis ◽  
George Perkoulidis ◽  
Apostolos Malamakis
Keyword(s):  
Anaerobic Digestion ◽  
Current Status

scholarly journals Management strategies for anaerobic digestate of organic fraction of municipal solid waste: Current status and future prospects

2019 ◽  
Vol 37 (1_suppl) ◽  
pp. 27-39 ◽  
Author(s):  
Mohanakrishnan Logan ◽  
Chettiyappan Visvanathan
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Management Practice ◽  
Management Strategies ◽  
Land Application ◽  
Current Status ◽  
Organic Fraction ◽  
Biogas Yield ◽  
Treatment Technologies

Anaerobic digestion has emerged as the preferred treatment for organic fraction of municipal solid waste. Digestate management strategies are devised not only for safe disposal but also to increase the value and marketability. Regulations and standards for digestate management are framed to address the pollution concerns, conserve vulnerable zones, prevent communicable diseases, and to educate on digestate storage and applications. Regulations and the desired end uses are the main drivers for the enhancement of digestate through pretreatment, in vessel cleaning, and post-digestion treatment technologies for solid and liquid fractions of digestate. The current management practice involves utilization of digestate for land application either as fertilizer or soil improver. Prospects are bright for alternative usage such as microalgal cultivation, biofuel and bioethanol production. Presently, the focus of optimization of the anaerobic digestion process is directed only towards enhancing biogas yield, ignoring the quality of digestate produced. A paradigm shift is needed in the approach from ‘biogas optimization’ to ‘integrated biogas–digestate optimization’.

On-site CO2 bio-sequestration in anaerobic digestion: current status and prospects

2021 ◽  
pp. 125037
Author(s):  
Suyun Xu ◽  
Zihao Qiao ◽  
Liwen Luo ◽  
Yongqi Sun ◽  
Jonathan Woon-Chung Wong ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Current Status

scholarly journals Biological And Thermal Pretreatment Of Lignocellulosic Materials For Enhanced Biogas Production

2021 ◽  
Author(s):  
Samer Dahahda
Keyword(s):  
Anaerobic Digestion ◽  
Organic Material ◽  
Fossil Fuels ◽  
Biogas Production ◽  
Renewable Energy Sources ◽  
Current Status ◽  
Lignocellulosic Materials ◽  
Thermal Pretreatment ◽  
Biological Pretreatment ◽  
Biogas Yield

The rapid depletion of natural resources and the environmental concerns associated with the use of fossil fuels as the main source of global energy is leading to an increased interest in alternative and renewable energy sources. Lignocellulosic biomass is the most abundant source of organic materials that can be utilized as an energy source. Anaerobic digestion has been proven to be an effective technology for converting organic material into energy products such as biogas. However, the nature of lignocellulosic materials hinders the ability of microorganisms in an anaerobic digestion process to degrade and convert organic material to biogas. Therefore, a pretreatment step is necessary to improve the degradability of lignocellulosic materials and achieve higher biogas yield. Several pretreatment methods have been studied over the past few years including physical, thermal, chemical and biological pretreatment. This paper reviews biological and thermal pretreatment as two main promising methods used to improve biogas production from lignocelluloses. A greater focus is given on enzymatic pretreatment which is one of the promising yet under-researched biological pretreatment method. The paper addresses challenges in degrading lignocellulosic materials and the current status of research to improve biogas yield from lignocelluloses through biological and thermal pretreatment.

scholarly journals Application of nano-structured materials in anaerobic digestion: Current status and perspectives

Chemosphere ◽  
2019 ◽  
Vol 229 ◽  
pp. 188-199 ◽  
Author(s):  
Hamed Baniamerian ◽  
Parisa Ghofrani Isfahani ◽  
Panagiotis Tsapekos ◽  
Merlin Alvarado-Morales ◽  
Mohammad Shahrokhi ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Current Status ◽  
Structured Materials

Energy production from piggery waste using anaerobic digestion: Current status and potential in Cyprus

2014 ◽  
Vol 71 ◽  
pp. 263-270 ◽  
Author(s):  
Elisavet Theofanous ◽  
Nicoletta Kythreotou ◽  
Gregoris Panayiotou ◽  
Georgios Florides ◽  
Ioannis Vyrides
Keyword(s):  
Anaerobic Digestion ◽  
Energy Production ◽  
Current Status

scholarly journals The Current Status and Future Potential of Biogas Production from Canada’s Organic Fraction Municipal Solid Waste

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 475
Author(s):  
Omid Norouzi ◽  
Animesh Dutta
Keyword(s):  
Anaerobic Digestion ◽  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Biogas Production ◽  
Organic Wastes ◽  
Current Status ◽  
Municipal Solid Waste Management ◽  
Organic Fraction

With the implementation of new policies supporting renewable natural gas production from organic wastes, Canada began replacing traditional disposal methods with highly integrated biogas production strategies. Herein, data from published papers, Canadian Biogas Association, Canada’s national statistical agency, and energy companies’ websites were gathered to gain insight into the current status of anaerobic digestion plants in recovering energy and resource from organic wastes. The availability of materials prepared for recycling by companies and local waste management organizations and existing infrastructures for municipal solid waste management were examined. Governmental incentives and discouragements in Canada and world anaerobic digestion leaders regarding organic fraction municipal solid waste management were comprehensively reviewed to identify the opportunities for developing large-scale anaerobic digestion in Canada. A range of anaerobic digestion facilities, including water resource recovery facilities, standalone digesters, and on-farm digesters throughout Ontario, were compared in terms of digestion type, digester volume, feedstock (s), and electricity capacity to better understand the current role of biogas plants in this province. Finally, technology perspectives, solutions, and roadmaps were discussed to shape the future in terms of organic fraction municipal solid waste management. The findings suggested that the biogas industry growth in Canada relies on provincial energy and waste management policies, advanced technologies for diverting organic waste from landfills, improving biogas yield using existing pretreatment methods, and educating farmers regarding digester operations.

scholarly journals Biological And Thermal Pretreatment Of Lignocellulosic Materials For Enhanced Biogas Production

2021 ◽  
Author(s):  
Samer Dahahda
Keyword(s):  
Anaerobic Digestion ◽  
Organic Material ◽  
Fossil Fuels ◽  
Biogas Production ◽  
Renewable Energy Sources ◽  
Current Status ◽  
Lignocellulosic Materials ◽  
Thermal Pretreatment ◽  
Biological Pretreatment ◽  
Biogas Yield

The rapid depletion of natural resources and the environmental concerns associated with the use of fossil fuels as the main source of global energy is leading to an increased interest in alternative and renewable energy sources. Lignocellulosic biomass is the most abundant source of organic materials that can be utilized as an energy source. Anaerobic digestion has been proven to be an effective technology for converting organic material into energy products such as biogas. However, the nature of lignocellulosic materials hinders the ability of microorganisms in an anaerobic digestion process to degrade and convert organic material to biogas. Therefore, a pretreatment step is necessary to improve the degradability of lignocellulosic materials and achieve higher biogas yield. Several pretreatment methods have been studied over the past few years including physical, thermal, chemical and biological pretreatment. This paper reviews biological and thermal pretreatment as two main promising methods used to improve biogas production from lignocelluloses. A greater focus is given on enzymatic pretreatment which is one of the promising yet under-researched biological pretreatment method. The paper addresses challenges in degrading lignocellulosic materials and the current status of research to improve biogas yield from lignocelluloses through biological and thermal pretreatment.

The role of conductive nanoparticles in anaerobic digestion: Mechanism, current status and future perspectives

Chemosphere ◽  
2021 ◽  
Vol 280 ◽  
pp. 130601
Author(s):  
Smita S. Kumar ◽  
Pooja Ghosh ◽  
Navish Kataria ◽  
Deepak Kumar ◽  
Sveta Thakur ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Current Status ◽  
Future Perspectives
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