填埋或焚烧，哪种方式能产生更清洁的电力能源
时间：2009-04-01 阅读： 我要评论:
文章简介：
本文中，作者通过计算从填埋产生的甲烷或垃圾直接焚烧中产生的电力的单位温室气体释放量，得出生活垃圾直接焚烧发电产生的电力更为清洁、产生的温室气体最少。
原文题目：
Is It Better To Burn or Bury Waste for Clean Electricity Generation?
作者：P. Ozge Kaplan, Joseph DeCarolis, Susan Thorneloe
摘要：
The use of municipal solid waste (MSW) to generate electricity through landfill-gas-to-energy (LFGTE) and waste-to-energy (WTE) projects represents roughly 14% of U.S. nonhydro renewable electricity generation. Although various aspects of LFGTE and WTE have been analyzed in the literature, this paper is the first to present a comprehensive set of life-cycle emission factors per unit of electricity generated for these energy recovery options. In addition, sensitivity analysis is conducted on key inputs (e.g., efficiency of the WTE plant, landfill gas management schedules, oxidation rate, and waste composition) to quantify the variability in the resultant life-cycle emissions estimates. While methane from landfills results from the anaerobic breakdown of biogenic materials, the energy derived from WTE results from the combustion of both biogenic and fossil materials. The greenhouse gas emissions for WTE ranges from 0.4 to 1.5 MTCO2e/MWh, whereas the most agressive LFGTE scenerio results in 2.3 MTCO2e/MWh. WTE also produces lower NOx emissions than LFGTE, whereas SOx emissions depend on the specific configurations of WTE and LFGTE.
Environ. Sci. Technol., 2009, 43 (6), pp 1711–1717
原文地址：http://pubs.acs.org/doi/abs/10.1021/es802395e
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