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CAER Seminars

BIOFILM SORPTION OF NATURAL ORGANIC MATERIALS

Speaker:
Dr. Gary Carlson
University of Colorado at Boulder
Boulder, Colorado

Date:
Thursday, January 11, 1996, 3:30 pm.
Ben Bandy Conference Room
Center for Applied Energy Research

Abstract:
Biofilm sorption of natural organic matter (NOM) and NOM-surrogate compounds was investigated with experimentation specifically addressing the effects of ozonation, sorbate molecular size, and sorbate charge. An experimental procedure was developed to separate biosorption from biodegradation using a live biofilm. Biosorption effectively removed 20% to 30% of NOM quanitified as DOC and chloroform precursors. It was found that ozonation did not significantly affect biofilm sorption , while NOM-surrogate compound research indicated that an increase in sorbate molecular size decreases sorption. NOM-surrogate compound results also indicated that anionic charge decreases biofilm sorption.