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Ribeiro Paula R, Cusson M, Bertrand N, Bouchard S, Chantigny MH, Lemieux J, Marouani E, Villeneuve C, Faubert P. Correction factors for large-scale greenhouse gas assessment from pulp and paper mill sludge landfill sites. Waste Manag 2024; 177:177-181. [PMID: 38330513 DOI: 10.1016/j.wasman.2024.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 02/10/2024]
Abstract
Assessments of greenhouse gas (GHG) emissions in managed areas are facing various challenges. A non-flow-through, non-steady-state (NFT-NSS) chamber coupled to a frame permanently inserted into the landfilled substrates is a standard method for quantifying GHG emissions in managed areas, such as pulp and paper mill sludge (PPMS) landfill sites. Frequent measurements are needed to minimize uncertainties on GHG emission factors at the landfill site scale. However, maintaining a frame inserted into the substrates for a long time period is often impossible due to landfilling management operations. Therefore, GHG measurements using NFT-NSS chambers placed directly on substrates' surface could be an interesting option. Our objectives were to determine the relationships between CO2, CH4, and N2O fluxes measured with (F + ) and without (F-) a frame inserted in the substrates' surface and to develop correction factors for fluxes measured without a frame. Measurements were made at different PPMS landfill sites in the province of Québec, Canada. Stronger GHG flux relationships were observed at the provincial (across sites) than the specific site scale: the variance in GHG fluxes from F- chambers explained up to 80 % of variance in fluxes from F + chambers. The measured CO2, CH4, and N2O fluxes in F- chambers were on average 53, 78, and 63 % lower, respectively, than those estimated by the models at provincial scale. The correction factors developed with this approach could greatly extend the number of sites where in situ GHG measurements can be done and would help refining GHG inventories at the provincial and national levels.
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Affiliation(s)
- Ranieri Ribeiro Paula
- Carbone boréal, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada.
| | - Mathieu Cusson
- Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada.
| | - Normand Bertrand
- Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd, Québec, QC, G1V 2J3, Canada.
| | - Sylvie Bouchard
- Carbone boréal, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada.
| | - Martin H Chantigny
- Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd, Québec, QC, G1V 2J3, Canada.
| | - Julie Lemieux
- Carbone boréal, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada.
| | - Emna Marouani
- Carbone boréal, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada.
| | - Claude Villeneuve
- Carbone boréal, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada.
| | - Patrick Faubert
- Carbone boréal, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC, G7H 2B1, Canada; Laboratoire sur les écosystèmes terrestres boréaux, Département des sciences fondamentales, Université du Québec à Chicoutimi, 555 boulevard de l'Université, Chicoutimi, QC G7H 2B1, Canada.
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Marouani E, Benzina NK, Ziadi N, Bouslimi B, Abouda A, Koubaa A. Deinking sludge compost stability and maturity assessment using Fourier transform infrared spectroscopy and thermal analysis. Waste Manag Res 2019; 37:1043-1057. [PMID: 31395003 DOI: 10.1177/0734242x19864638] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Thermal composting is an important and useful way to transfer raw organic matter into value-added product rich in humic substances. Furthermore, thermal composting is a very promising way to reduce deinking paper sludge pollutions, which are difficult to remove. The objective of this study was to investigate the behaviour of the composting process of deinking paper sludge with poultry manure over 14 months. Two composts were used: C1 (70/30: deinking paper sludge/poultry manure) and C2 (50/50: deinking paper sludge/poultry manure). The compost stability and maturity were assessed via physico-chemical and thermal analyses: thermogravimetric analysis, differential thermal analysis and diffuse reflectance infrared Fourier transform spectroscopy. Diffuse reflectance infrared Fourier transform spectroscopy analysis provided chemical information for the presence of aromatic, phenolic, aliphatic and polysaccharidic structures. Thermogravimetry analyses revealed that both deinking paper sludge composts were rich in humic acids. The ratio E4/E6 (fulvic acids/humic acids) was also carried out to characterise the maturity index of composts. After 14 months, the compost C2 is more stable, mature and rich in humic acids than compost C1. Furthermore, the addition of poultry manure to the deinking paper sludge-based composts enhanced the formation of humic substances. From 0 to 14 months of composting, the concentration of polychlorinated biphenyls decreased from 0.2 to 0.1 mg kg-1 and from 0.6 to 0.2 mg kg-1 for C1 and C2, respectively.
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Affiliation(s)
- Emna Marouani
- Laboratory of Biomaterial, University of Quebec in Abitibi-Témiscamingue, Rouyn-Noranda, Quebec, Canada
- Horticultural Science Laboratory, National Agronomic Institute of Tunisia (INAT), Tunis, Tunisia
| | - Naïma Kolsi Benzina
- Horticultural Science Laboratory, National Agronomic Institute of Tunisia (INAT), Tunis, Tunisia
| | - Noura Ziadi
- Quebec Research and Development Centre, Agriculture and Agri-Food Canada, Quebec City, Quebec, Canada
| | - Besma Bouslimi
- Laboratory of Biomaterial, University of Quebec in Abitibi-Témiscamingue, Rouyn-Noranda, Quebec, Canada
| | - Amani Abouda
- Horticultural Science Laboratory, National Agronomic Institute of Tunisia (INAT), Tunis, Tunisia
| | - Ahmed Koubaa
- Laboratory of Biomaterial, University of Quebec in Abitibi-Témiscamingue, Rouyn-Noranda, Quebec, Canada
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