Anthropogenic N2O production from landfill leachate treatment

Leachate characterization in semi-aerobic and anaerobic sanitary landfills: A comparative study

“…It is also rich in phenol, nitrogen, and phosphorus. If not treated and safely disposed, landfill leachate could be a potential source of surface and ground water contamination, as it could seep into soils and subsoils, causing severe pollution to receiving waters (Oman and Junestedt, 2008;Lin et al, 2008;Sanphoti et al, 2006;Tatsi et al, 2003). Generally, the risks of the leachate on the natural environment are determined by comparing leachate quality with Malaysia standards.…”

Short tests to couple N 2 O emission mitigation and nitrogen removal strategies for landfill leachate recirculation

“…2). Insufficient aeration in leachate reservoirs and air addition (semi-aerobic) in landfill both resulted in partial nitrification, which were followed by significant N 2 O flux surges as well (Lin et al, 2008). Additionally, the aged leachate draining from Laogang landfill could only provide 0.1-0.2 BOD/TN ratio (Table 1), presumably constraining denitrification and resulting in the emission of N 2 O.…”

N2O emission from a combined ex-situ nitrification and in-situ denitrification bioreactor landfill

“…Previous studies have stated that the change of N 2 O emission was closely related to the changing leachate quality (Sun et al, 2013;Lin et al, 2008). The continuous monitoring experiment illustrated that N 2 O emission was influenced by the influent and effluent leachate, especially COD, COD/TN ratio, DO, ORP and NO 3 À -N. In this study, leachate was cross recirculated between the two bioreactors, therefore, the N 2 O emission in the F bioreactor was influenced by the influent leachate from the A bioreactor and by the effluent leachate from the F bioreactor, likewise, the emission of N 2 O in the A bioreactor was influenced by the influent leachate from the F bioreactor and by the effluent leachate from the A bioreactor.…”