Enhancing reaction rates in nitrifying trickling filters through biofilm control
2016
Reaction rates in tertiary nitrifying trickling filters have been significantly increased by the development of the bio film-controlled nitrifying trickling filter (BCNTF). The use of cross-flow media in the BCNTF permits higher oxygen transfer to the biofilm than does the older vertical media. The use of a flooding cycle prevents the growth of predator organisms that have consumed the biofilm in other plants and disrupted nitri fication. A backwash feature controls biomass inventory and eliminates the need for subsequent clarification. Operation and maintenance and capital costs are often less than for other pro cesses. A design model has been developed that accurately predicts performance. / Water Pollut. Control Fed., 61, 618 (1989).
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