Abstract:
:Landfill leachate, generated from the wastes in a landfill, is a type of wastewater with high concentrations of ammonia and organics, causing a serious environmental pollution. Because of its complex and changing characteristics, it is difficult to remove nitrogen from landfill leachate economically and effectively. Hence, nitrogen removal is a significant research priority of landfill leachate treatment in recent years. Biological processes are known to be effective in nitrogen removal. In this work, the biological nitrogen removal treatments were divided into the following processes: conventional nitrification-denitrification process, nitritation-denitritation process, endogenous denitritation process, and anaerobic ammonium oxidation (Anammox) process. This manuscript summarized the theories and applications of these approaches in detail, and concluded that appropriate processes should be selected in accordance with different characteristics of landfill leachate, in order to effectively remove nitrogen from all stages of landfill leachate and reduce disposal costs. Finally, perspective on the challenges and opportunities of biological nitrogen removal from landfill leachate was also presented.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Miao L,Yang G,Tao T,Peng Ydoi
10.1016/j.jenvman.2019.01.057subject
Has Abstractpub_date
2019-04-01 00:00:00pages
178-185eissn
0301-4797issn
1095-8630pii
S0301-4797(19)30060-Xjournal_volume
235pub_type
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