Quantifying the Carbon Reduction Potential of Recycling Construction Waste Based on Life Cycle Assessment

A Case of Jiangsu Province

Dados Bibliográficos

ID15499014
AutoresHongmei Liu (0000-0003-1064-2448, Nantong University), Rong Guo (0000-0002-0807-1490, Nantong University), Yujing Bai (0000-0003-4197-8454, Nantong University), Junjie Tian (Nantong University), Honghao Sun (0000-0001-8148-3398, Nantong University), Yi Wang (0000-0003-2228-7009, Nantong University), Haiyan Li (0000-0002-1437-4383, Nantong University, autor correspondente), Yao Lu (0000-0002-6715-4640, Nantong University, autor correspondente), Lu Yao (0000-0002-3360-8413, Nantong University)
Ano2022
Volume19
Fascículo19
Páginas12628-12628
Data de publicação2022-10-03
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoInternational Journal of Environmental Research and Public Health (JOURNAL)
Identificadores do periódicoISSN: 1661-7827 • E-ISSN: 1660-4601
EditoraMultidisciplinary Digital Publishing Institute (PUBLISHER • CH)
DOI10.3390/ijerph191912628
PMID36231927
OpenAlexW4303696586
IdiomaEN
Citações recebidas2
Referências citadas53

The recycling of construction waste is key to reducing waste generation and CO 2 emissions. This study aimed to develop a quantitative model for analyzing the carbon reduction potential of recycling construction, demolition, and renovation waste (CDRW) in Jiangsu province. The waste generation rate calculation method and nonlinear autoregressive artificial neural network model were used to estimate and predict CDRW generation. The life cycle assessment was performed to calculate the carbon reduction potential of recycling CDRW. In quantifying the carbon reduction potential, not only construction and demolition waste, but also renovation waste was considered for the first time. The results showed that the total carbon reduction potential of recycling CDRW increased from 3.94 Mt CO 2 e in 2000 to 58.65 Mt CO 2 e in 2020. Steel and concrete were the main contributors. By scenario analysis, the carbon reduction potential of fully recycling CDRW in 2020 increased by 37.79 Mt CO 2 e, a growth rate of 64%. The study further predicts future CDRW generation and the corresponding carbon reduction potential. Our conclusions indicate that 245.45 Mt of CDRW will be generated in 2030, and carbon reduction potential may reach 82.36 Mt CO 2 e. These results will help the government manage construction waste better and reach early achievement of the carbon peak target

Carbon fibers · Civil engineering · Demolition · Demolition waste · Greenhouse gas · Life-cycle assessment · Municipal solid waste · Production (economics · Reduction (mathematics · Waste management · Computer Science · Engineering · Environmental Science · Mathematics · Municipal Solid Waste Management · Recycled Aggregate Concrete Performance · Recycling and Waste Management Techniques · Ecology · Environmental Engineering