Greenhouse gas emissions from landfill leachate treatment plants: A comparison of young and aged landfill.

Highlights: [•] Young and aged leachate works accounted for 89.1% and 10.9% of 33.35GgCO2 yr−1. [•] Fresh leachate owned extremely low ORP and high organic matter content. [•] Strong CH4 emissions occurred in the fresh leachate ponds, but small in the aged. [•] N2O emissions became dominant in the treatment units of both systems. [•] 8.45–11.9% of nitrogen was removed as the form of N2O under steady-state. [Copyright &y& Elsevier]