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Cradle-to-grave environmental and economic sustainability of lime-based plasters manufactured with upcycled materials.
- Source :
-
Journal of Cleaner Production . May2024, Vol. 452, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- The production of CaO for lime-based plaster and render generates 1.2 t CO 2 /t CaO, consumes 1.78 t CaCO 3 /t CaO. This research paper examines the environmental and economic performance of upcycling paper mill sludge (PMS) and carbide lime (CL) as replacements for hydrated lime (HL) in lime-based plasters production. For this, a new Cradle-to-Gate industrial-scale inventory is designed, upscaling recent lab-scale innovations, investigating PMS and CL treatment processes, followed by a Cradle-to-Grave scenario analysis. The results show that incorporating CL in the plaster yields better environmental and economic outcomes compared to PMS. The intermediate treatment for CL is cost-effective and has low carbon emissions. The upcycling of CL eliminates 100% of CO 2 emissions, while PMS reduces emissions by 11%. The production of the traditional binder HL is more expensive than upcycling PMS (+69%) and CL (+65%), with carbon taxes accounting for 35%, 44% and 15% of production costs, respectively. The effect of an equilibrated carbon price to ensure fair market competition, considering the natural carbonation of lime (carbon credit) is discussed, and the cost assessment reveals a 47% and 54% reduction for upcycled plasters using PMS and CL, respectively, compared to traditional HL. [Display omitted] • Availability, properties, and treatments of secondary lime resources. • Industrial-scale inventory for upcycling carbide lime (CL) & paper sludge (PS). • Cradle-to-Grave assessment: CL reduces CO 2 most, trailed by PS and hydrated lime. • Key factors for Cradle-to-Grave impact: lime kiln heat consumption (PS) and drying operation (CL). • Cost analysis of carbon taxes and credits across the material's life-cycle. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09596526
- Volume :
- 452
- Database :
- Academic Search Index
- Journal :
- Journal of Cleaner Production
- Publication Type :
- Academic Journal
- Accession number :
- 176924743
- Full Text :
- https://doi.org/10.1016/j.jclepro.2024.142088