Cocoa residues as viable biomass for renewable energy production through anaerobic digestion

Autor: Verónica Sandoval, Nayaret Acosta, Korneel Rabaey, Danny Sinche, Isabella Wierinck, Jo De Vrieze
Rok vydání: 2018
Předmět:
Technology
DRY
Biogas
02 engineering and technology
010501 environmental sciences
01 natural sciences
Methane
chemistry.chemical_compound
METHANE
Bioreactors
FOOD WASTE
0202 electrical engineering
electronic engineering
information engineering
Agricultural residues
BIOGAS PRODUCTION
MODE
Anaerobiosis
Biomass
Waste Management and Disposal
Chemical oxygen demand
Agriculture
General Medicine
Pulp and paper industry
Cocoa waste
Renewable energy
WET
Life Sciences & Biomedicine
Environmental Engineering
Energy & Fuels
020209 energy
Bioengineering
Electricity demand
Bioenergy
Renewable Energy
BATCH
RICE STRAW
0105 earth and related environmental sciences
Biological Oxygen Demand Analysis
Science & Technology
Renewable Energy
Sustainability and the Environment
business.industry
Anaerobic digestion
Food waste
Biotechnology & Applied Microbiology
chemistry
Biofuels
Bio-energy
Environmental science
Agricultural Engineering
business
Zdroj: Bioresource Technology. 265:568-572
ISSN: 0960-8524
Popis: The aim of this work was to evaluate the bioenergy potential of cocoa residue via anaerobic digestion. Batch and fed-batch lab-scale reactors were operated under low and high solids conditions. In the batch tests, 59 ± 4% of Chemical Oxygen Demand (COD) was recovered as methane. This corresponded with an average methane yield of 174 (wet) and 193 (dry) L kg-1 volatile solids fed, whereas a series of fed-batch reactors produced 70 ± 24 (wet) and 107 ± 39 (dry) L CH4 kg-1 volatile solids fed during stable conditions. A case study was developed for canton Balao (Ecuador) based on our experimental data, operational estimates and available cocoa waste in the area. Annually, 8341 MWh could be produced, meeting 88% of the current electricity demand in Balao. This case study proves the potential for cocoa waste as a source of renewable energy in rural areas. ispartof: BIORESOURCE TECHNOLOGY vol:265 pages:568-572 ispartof: location:England status: published
Databáze: OpenAIRE
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