Aeration control on a nitrifying biofilter system by using on-line analyzers

Authors
Puznava, N Thornberg, D Magnin, P Reddet, E
Citation
N. Puznava et al., Aeration control on a nitrifying biofilter system by using on-line analyzers, WATER SCI T, 41(4-5), 2000, pp. 369-374
Citations number
9
Categorie Soggetti
Environment/Ecology
Journal title
WATER SCIENCE AND TECHNOLOGY
ISSN journal
02731223 → ACNP
Volume
41
Issue
4-5
Year of publication
2000
Pages
369 - 374
Database
ISI
SICI code
0273-1223(2000)41:4-5<369:ACOANB>2.0.ZU;2-7
Abstract
Two new ways of controlling the aeration in nitrifying biofilters, by measu ring on-line dissolved oxygen and ammonia concentration in the effluent of the filter are compared to the standard control using time tables with cons tant air flow. Both on pilot and large scale, the new process control conce pts proved to be very efficient in optimizing operation costs for aeration (up to 70% during rainy days) and to guarantee a demanded effluent quality.