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Treatment of aqueous phase of bio-oil by granular activated carbon and evaluation of biogas production
- Source :
- Bioresource technology. 223
- Publication Year :
- 2016
-
Abstract
- Hydrothermal liquefaction of wet biomass such as algae is a promising thermochemical process for the production of bio-oil. Bio-oil aqueous phase generated during liquefaction process is rich in complex organics and can be utilized for biogas production following its pre-treatment with granular activated carbon. In our study, use of 30% activated carbon resulted in higher chemical oxygen demand (COD) reduction (53 ± 0.3%) from aqueous phase. Higher CH4 production (84 ± 12 mL/g COD) was also observed in 30% carbon-treated aqueous phase fed cultures, whereas only 32 ± 6 mL CH4/g COD was observed in control (non-carbon treated) cultures. The results from this study indicate that almost 67 ± 0.3% initial COD of aqueous phase can be reduced using a combination of both carbon treatment and biogas production. This study shows that aqueous phase can be utilized for CH4 production.
- Subjects :
- Granular activated carbon
Environmental Engineering
020209 energy
chemistry.chemical_element
Biomass
Bioengineering
02 engineering and technology
010501 environmental sciences
01 natural sciences
Water Purification
0202 electrical engineering, electronic engineering, information engineering
medicine
Waste Management and Disposal
0105 earth and related environmental sciences
Biological Oxygen Demand Analysis
Waste management
Bacteria
Renewable Energy, Sustainability and the Environment
Chemical oxygen demand
Aqueous two-phase system
Liquefaction
Water
General Medicine
Pulp and paper industry
Carbon
Hydrothermal liquefaction
chemistry
Biofuels
Activated carbon
medicine.drug
Subjects
Details
- ISSN :
- 18732976
- Volume :
- 223
- Database :
- OpenAIRE
- Journal :
- Bioresource technology
- Accession number :
- edsair.doi.dedup.....d884b9ad31160e7c5e6d52305e4d1bd8