The effects of sludge recycle ratio on nitrification‐denitrification performance in biological treatment of leachate
- 1 December 1989
- journal article
- research article
- Published by Taylor & Francis in Environmental Technology Letters
- Vol. 10 (12) , 1041-1050
- https://doi.org/10.1080/09593338909384825
Abstract
The effect of sludge recycle ratio on a biological single‐sludge, nitrification‐denitrification system, treating high ammonia (200–260 mg L−1) leachate, was investigated. Although overall ammonia removals were not affected by the increase in recycle ratios (from 4:1 to 10:1), the nitrification and denitrification performances became very unstable beyond a 6:1 ratio. The same ratio also resulted in the lowest N0x (and suspended solids) levels in the effluent of the system, by utilizing more effectively its denitrification potential.Keywords
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