온실가스 감축을 위한 폐기물 관리방안 연구

Abstract

A Study on Waste Management for Reducing Greenhouse Gas Emissions - Life Cycle Assessment (LCA) of Greenhouse Gas Emissions from Waste Management Practices Greenhouse gas emissions from waste management in Korea account for about three to five percent of the total emissions. This value is calculated based on the estimating methodology developed by IPCC . It must be noted here that this methodology only accounts for CO2 and N2O emissions from waste inc incineration in incinerators and CH4 emissions from anaerobic decomposition of waste in landfill sites. However, there are more greenhouse gas emissions related to processes of waste management. In actuality, greenhouse gases are emitted during the process of not only waste incineration and anaerobic waste decomposition, but also facilities operation , waste collection, transport and so on, but greenhouse gas emissions can be prevented by recycling and energy recovery from waste. That is, waste management consists of dualistic properties, i.e. various processes of greenhouse gas emissions as well as prevention. The IPCC methodology generally used for estimating greenhouse gas emissions from waste management cannot be applied to all the waste management processes. Therefore a new methodology needs to be developed to estimate accurately greenhouse gas emissions from all the major waste management processes. To this end, we developed an estimating methodology to assess greenhouse gas impact considering all major greenhouse gas related processes including materials recycling, landfill, incineration, composting, anaerobic digestion, waste collection, transport and so on. Based on this methodology we also assessed greenhouse gas impact of some waste management policies being applied in Korea. This work can serve as a basis for establishing national waste management policy to reduce greenhouse gas emissions.