We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The influence of air inflow on CH composition ratio in landfill gas.
- Authors
Chun, Seung-Kyu
- Abstract
When landfill gas is collected, air inflow into the landfill can reduce CH productivity. The decline of CH content in landfill gas (LFG) negatively affects energy projects. We studied air inflow rates and LFG characteristics from 699 vertical collection facilities (VCFs) in the 2nd landfill at the Sudokwon Landfill in South Korea. We first determined whether or not N was an effective indicator of air inflow at this site using argon assays. The results of this analysis showed that the denitrification processes could be disregarded and that N was an effective indicator of air inflow. Using the composition of N in LFG samples, we found that air inflow occurred at 73.6 % of the VCFs, and 25.6 % of samples from these facilities showed more than 80 vol% of air inflow. In addition, we observed that the O consumption rate was more than 70 % of the volume in all samples. $$ R_{{{\text{CH}}_{ 4} }} $$ , which is the ratio of CH to the sum of CH and CO, decreased with increasing air inflow. Finally, we found that, as air inflow increased, the variation in $$ R_{{{\text{CH}}_{ 4} }} $$ values for samples with equal air inflow ratios also increased due to differences in air inflow routes.
- Subjects
AIR flow; LANDFILL gases; METHANE industry; CARBON monoxide; AIR sampling; ARGON
- Publication
Journal of Material Cycles & Waste Management, 2014, Vol 16, Issue 1, p172
- ISSN
1438-4957
- Publication type
Article
- DOI
10.1007/s10163-013-0163-4