The up¯ow aerated bio®lter with polyurethane foam cubes as the supporting medium was used for the investigation of nitri®cation studies on municipal sewage (secondary treated as well as untreated domestic sewage). In case of secondary treated sewage ef¯uent, a synthetic composition of NH 4 -N and COD of each 50 mg/l was studied for a HRT variation of 24, 12, 8 and 6 hours. The ammonium removal ef®ciencies were found to be in the range of 98 to 100% with the steady-state ef¯uent concentrations of NH 4 -N and NO À 2 -N in the range of 1±4 mg/l and 0.1±0.2 mg/l respectively. In case of domestic sewage system, nitri®cation studies along with suspended solids removal study was carried-out on untreated sewage for a HRT variation of 24, 12 and 6 hours. The ammonium removal ef®ciencies of 100% were observed for all the three HRT values at very high COD/NH 4 -N ratio of 15. The suspended solids removal ef®ciencies of 95 to 98% were observed with the average ef¯uent suspended solids concentration of 5.9 to 15.9 mg/l. The experiments were conducted in non-backwash conditions of the bio®lter. The study has revealed the best use of the up¯ow bio®lter system for nitri®cation applications and suspended solids removal.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.