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http://dx.doi.org/10.7844/kirr.2022.31.1.56

Evaluation of Greenhouse Gas Emissions for Life Cycle of Mixed Construction Waste Treatment Routes  

Kim, Da-Yeon (Program in Global Industrial & Environmental Technology Convergence, Inha University)
Hwang, Yong-Woo (Department of Environmental Engineering, Inha University)
Kang, Hong-Yoon (Program in Global Industrial & Environmental Technology Convergence, Inha University)
Moon, Jin-Young (Program in Global Industrial & Environmental Technology Convergence, Inha University)
Publication Information
Resources Recycling / v.31, no.1, 2022 , pp. 56-64 More about this Journal
Abstract
Construction waste is generated at a rate of approximately 221,102 tons/day in Korea. In particular, mixed construction waste generates approximately 24,582 tons/day. The other components were recycled by 98.9%. The amount of greenhouse gas emissions from the waste was 17.1 million tons of CO2 equaling 2.3% of the total greenhouse gas emissions. To reduce greenhouse gas emissions, reducing the environmental impact is becoming increasingly important. However, appropriate treatment must first be established, as mixed construction waste is also increasing. Thus, an effective plan is urgently needed because it is frequently segregated and sorted by the landfill and incinerated. In addition, there is an urgent need to prepare various effective recycling methods rather than a simple treatment. Therefore, this study analyzed the environmental impact of the treatment of mixed construction waste by calculating greenhouse gas emissions. As a result, the highest greenhouse gas generation occurred during the incineration stage. Moreover, the optimal method to reduce greenhouse gas emissions is recycling and energy recovery from waste. In addition, the amount of greenhouse gas generated during energy recovery from the waste stage was the second highest. However, greenhouse gas emissions can be reduced by using waste as energy to reduce fossil fuel consumption. In addition, for the transportation stage, the optimal reduction plan is to minimize the amount of greenhouse gas emissions by setting the optimal distance and applying biofuel and electric vehicle operations.
Keywords
Mixed Construction Waste; Life Cycle Assessment(LCA); Estimation of Greenhouse Gas Emissions; Environmental Impact; Recycle;
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Times Cited By KSCI : 1  (Citation Analysis)
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