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Evaluation of Joint Management of Pine Wood Waste and Residual Microalgae for Agricultural Application
- Source :
- Sustainability, Vol 13, Iss 53, p 53 (2021), Sustainability, Volume 13, Issue 1
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- This work addresses the joint management of residual microalgae and pine wood waste through pyrolysis to obtain a solid product for its use as soil amendment and two other by-products (liquid and gaseous) that can be used for energy purposes. Two management routes have been followed. The first route is through the co-pyrolysis of mixtures of both residual materials in several proportions and the later use of their solid fraction for soil amendment. The second route is the pyrolysis of pine wood waste and its direct combination with dried residual microalgae, also using it as soil amendment. The solid fraction assessment shows that from seven solid products (biochar) three stand out for their positive applicability in agriculture as soil amendment. In addition, they also present the benefit of serving as carbon sink, giving a negative balance of CO2 emissions. However, caution is suggested due to biochar applicability being subject to soil characteristics. To ensure the sustainability of the overall process, the energy available in liquid and gaseous fractions has been assessed for covering the drying needs of the residual microalgae in both cases. These results suggest that the pyrolysis process is a sustainable way to manage specific evaluated residues and their products.
- Subjects :
- 020209 energy
Geography, Planning and Development
Amendment
TJ807-830
02 engineering and technology
Management, Monitoring, Policy and Law
Residual
TD194-195
Renewable energy sources
Biochar
0202 electrical engineering, electronic engineering, information engineering
biochar
GE1-350
organic soil amendment
Environmental effects of industries and plants
Renewable Energy, Sustainability and the Environment
business.industry
microalgae
Carbon sink
04 agricultural and veterinary sciences
Pulp and paper industry
pyrolysis
Joint management
Environmental sciences
Pine wood
Agriculture
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Environmental science
pine wood waste
business
Pyrolysis
Subjects
Details
- Language :
- English
- ISSN :
- 20711050
- Volume :
- 13
- Issue :
- 53
- Database :
- OpenAIRE
- Journal :
- Sustainability
- Accession number :
- edsair.doi.dedup.....395dd1d5913ef8bcfae609e71c1836b7