期刊
SUSTAINABILITY
卷 15, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/su15076322
关键词
HWP; climate change mitigation; carbon storage; GHG emissions; climate goals; recycling; incineration; solid waste disposal; circular bioeconomy; Hungary
In this study, the carbon storage and emissions of a hypothetical manufacturer's particleboard production in 2020 were examined under different scenarios. The aim was to identify the most climate-friendly practices related to HWP production and waste management. The results showed that a combined scenario with bundled mitigation activities had the largest potential for emission reduction, with increased recycling rates having the largest mitigation effect.
Harvested wood products (HWPs) store a significant amount of carbon, and their lifetime extension and appropriate waste management, recycling, and reuse can contribute remarkably to the achievement of climate goals. In this study, we examined the carbon storage and CO2 and CH4 emissions under different scenarios of 200,000 m(3) particleboard manufactured in 2020 by a hypothetical manufacturer. The scope of our investigation was to model the effects of a changing product lifetime, recycling rates and waste management practices on the duration of the carbon storage in wood panels and on their emission patterns. The aim of the investigation was to identify the most climate-friendly practices and find the combination of measures related to HWP production and waste management with the highest climate mitigation effect. We used the newly developed HWP-RIAL (recycling, incineration and landfill) model for the projections, which is a combination of two IPCC models parametrized for Hungarian circumstances and supplemented with a self-developed recycling and waste-route-selection submodule. The model runs covered the period 2020-2130. According to the results, the combined scenario with bundled mitigation activities had the largest mitigation potential in the modelled period, resulting in 32% emission reduction by 2050 as compared to the business-as-usual scenario. Amongst individual mitigation activities, increased recycling rates had the largest mitigation effect. The lifetime extension of particleboard can be a complementary measure to support climate mitigation efforts, along with the concept of cascade use and that of circular bioeconomy. Results showed that landfilled wood waste is a significant source of CH4 emissions on the long term; thus, incineration of wood waste is preferable to landfilling.
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