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BOM removal during biofiltration
Author(s) -
Carlson Kenneth H.,
Amy Gary L.
Publication year - 1998
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1998.tb08550.x
Subject(s) - biofilter , biodegradation , dissolved organic carbon , filter (signal processing) , chemistry , organic matter , trickling filter , total organic carbon , biomass (ecology) , ozone , pulp and paper industry , environmental chemistry , filtration (mathematics) , environmental science , environmental engineering , effluent , ecology , organic chemistry , statistics , mathematics , computer science , engineering , computer vision , biology
Although the biofiltration process may not control the design of a filter bed, results described here can help the engineer better understand the tradeoffs. Pilot‐scale biofiltration experiments were conducted to determine how empty bed contact time (EBCT) and hydraulic loading rate (HLR) affected the removal of biodegradable organic matter (BOM). The removal of BOM formed during ozonation was measured as the reduction (resulting from biodegradation) of dissolved organic carbon in the filter; it was referred to as biodegradable dissolved organic carbon–filter (BDOC filter ). Ten ozone by‐products were measured to understand the composition of BDOC filter and to assess whether these by‐products might be used as a surrogate for BOM; none sufficed. BOM formed during ozonation limited the removal of BDOC during biofiltration with two exceptions: nonsteady‐state BOM loading conditions and inadequate EBCT. Both of these conditions were limited by biomass formation. HLR had no effect on BDOC filter even though markedly different biomass profiles were observed.