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Decomposition and carbon storage of selected paper products in laboratory-scale landfills
- Source :
- The Science of the total environment. 532
- Publication Year :
- 2015
-
Abstract
- The objective of this study was to measure the anaerobic biodegradation of different types of paper products in laboratory-scale landfill reactors. The study included (a) measurement of the loss of cellulose, hemicellulose, organic carbon, and (b) measurement of the methane yields for each paper product. The test materials included two samples each of newsprint (NP), copy paper (CP), and magazine paper (MG), and one sample of diaper (DP). The methane yields, carbon storage factors and the extent of cellulose and hemicellulose decomposition all consistently show that papers made from mechanical pulps (e.g., NPs) are less degradable than those made from chemical pulps where essentially all lignin was chemically removed (e.g., CPs). The diaper, which is not only made from chemical pulp but also contains some gel and plastic, exhibited limited biodegradability. The extent of biogenic carbon conversion varied from 21 to 96% among papers, which contrasts with the uniform assumption of 50% by the Intergovernmental Panel on Climate Change (IPCC) for all degradable materials discarded in landfills. Biochemical methane potential tests also showed that the solids to liquid ratio used in the test can influence the results.
- Subjects :
- Paper
Carbon Sequestration
Environmental Engineering
Climate Change
chemistry.chemical_element
Lignin
Methane
chemistry.chemical_compound
Environmental Chemistry
Hemicellulose
Cellulose
Waste Management and Disposal
Waste management
Biodegradation
Pulp and paper industry
Pollution
Decomposition
Carbon
Refuse Disposal
Waste Disposal Facilities
Biodegradation, Environmental
chemistry
Models, Chemical
visual_art
Newsprint
visual_art.visual_art_medium
Laboratories
Subjects
Details
- ISSN :
- 18791026
- Volume :
- 532
- Database :
- OpenAIRE
- Journal :
- The Science of the total environment
- Accession number :
- edsair.doi.dedup.....4956e31c696337cfffbf35a24c473597