## Project Background
The municipal landfill site, which has been in service for 18 years, has a daily processing capacity of 2,200 tons. The methane concentration in the biogas field has been persistently high, leading to complaints from surrounding residents about unusual odors. The Housing and Urban-Rural Development Bureau has requested that the monitoring system be upgraded within 30 days.
## Implementation Plan
Along the landfill unit, 24 points are arranged to observe the YQRQ-100 fixed methane monitors + 8 boundary YQH-H2S hydrogen sulfide monitors. The biogas drainage wells are equipped with combined pressure + concentration sensors to calculate the total amount in real-time.
– 24-hour online, automatic activation of active pump-aspirated system at a concentration of LEL 25%
– Odor concentration of 0.5ppm triggers peripheral spray deodorization
– Dual data upload: landfill site master control + housing and urban-rural development bureau supervision platform
## Implementation Effect
The number of complaints has decreased from an average of 11 per month to 1-2, and the biogas resource production has increased by 18% year-on-year (with more precise extraction and discharge), earning the provincial solid waste association’s “Benchmark Case” recognition.