Activated biofilm removal of low concentrations of toluene
Authors: Neufeld, Ronald D.; Niaki, Shahzad; Badali, Christopher; Liu, Paul K. T.; Powers, Dennis
Source: Water Environment Research, Volume 66, Number 7, November/December 1994 , pp. 899-904(6)
Publisher: Water Environment Federation
A two-step technique is presented for the biodegradation or transformation of low concentrations of benzene, ethylbenzene, toluene, and xylene (BETX) hydrocarbons. Step 1 incorporates the batch growth and attachment of a lush biofilm onto plastic surfaces utilizing a preselected substrate capable of stimulating desired biological activity. Step 2 involves continuous upflow biodegradation of low concentration levels of target organics by the generated biofilm. Step 1-generated biofilms are predicted to deteriorate during protracted time periods, however, extended experimental runs on the order of four months were conducted with continued bioremovals. Target organic removals during Step 2 operations, quantified by a first-order removal constant, are shown to be linked to Step 1 operating methodology.
Document Type: Research Article
Publication date: 1994-11-01
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