Nitrogen is an important component for our ecosystems, which accounts for 80% of chemical
elements in the atmosphere. Ammonia nitrogen is one of the most concerned constituents …

Conventional biological processes are not enough to achieve desired removal efficiencies
from N-rich waste streams such as landfill leachate. In this aspect, start-up phase of a …

In-situ free nitrous acid (FNA) and free ammonia (FA) treatments are more feasible than side-
stream methods to achieve nitritation. To assess the optimum conditions and long-term …

This study presents a biological system combined upflow anaerobic sludge bed (UASB) with
sequencing batch reactor (SBR) to treat ammonium-rich landfill leachate. The start-up and …

In this study, a biological system consisting of an up-flow anaerobic sludge blanket (UASB)
and anoxic–oxic (A/O) reactor was established for the advanced treatment of high …

The high levels of free ammonia (FA) challenge the application of partial nitritation (PN) and
denitrification (DN) in the treatment of ammonia-rich wastewater. This study explored the …

Biological nitrogen removal using nitrite as a shortcut has recently been proposed for the
treatment of high strength landfill leachate. The aim of this study was to assess the …

Free ammonia (FA) inhibition on nitrite-oxidized bacteria (NOB) and real-time control are
used to achieve nitrogen removal from landfill leachate via nitrite pathway at low …

Partial nitrification is an effective process for treating high-strength ammonium landfill
leachate with low C/N ratio, for the cooperation with denitrification can save almost 40 …

A continuous flow bioreactor was operated for 300 days to investigate partial nitritation (PN)
of mature landfill leachate, establishing the long-term performance of the system in terms of …