Carbon Footprint Assessment and GHG Reduction Guidelines for the Rubberwood Processing Industry in Yala Province
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Abstract
This study presents a Cradle-to-Gate carbon footprint assessment (CFP) of a representative rubberwood (Hevea brasiliensis) processing factory in Yala Province, Thailand, conducted in accordance with the Life Cycle Inventory (LCI) framework and ISO 14067:2018. The functional unit was defined as one cubic meter (1 m³) of processed rubberwood leaving the factory gate. The total greenhouse gas (GHG) emission intensity was calculated as 40.83 kgCO₂-eq/m³, with raw materials and processing residues identified as the dominant emission sources, accounting for approximately 90% of total emissions. Electricity (2.33 kgCO₂-eq/m³) and diesel fuel (0.11 kgCO₂-eq/m³) constituted secondary contributors, while consumables and auxiliary materials contributed negligibly. The findings should be interpreted as a single-factory case study rather than an industry-wide representative baseline. Potential mitigation pathways, drawn from analogous studies, include optimized inventory management (15–30% reduction potential), biomass fuel substitution (50–85%), operational efficiency improvements through preventive maintenance and AI-assisted optimization (5–15%), and waste valorization through biochar conversion. These hotspots align with Thai national policy frameworks, including the Nationally Determined Contribution (NDC), Carbon Neutrality (2050), Net Zero (2065), the TGO Carbon Label Program, the EU Carbon Border Adjustment Mechanism (CBAM), the Bio-Circular-Green (BCG) economic model, and the energy policies under the Power Development Plan (PDP) and the Department of Alternative Energy Development and Efficiency (DEDE). The study provides empirical baseline data for the rubberwood processing sector and serves as a methodological reference for future, larger-scale assessments.
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