Date of Award
Master of Science in Chemical Engineering - (M.S.)
Chemical Engineering and Chemistry
Joseph W. Bozzelli
Kristol, David S.
The biological degradation of phenol up to 500 ppm and 0-chlorophenol up to 40 ppm was studied in an aerated 4.0 liter hatch reactor using activated sludge bacteria from the Livingston, N.J. wastewater treatment plant. From the concentration versus time data, kinetic rate constants were determined for phenol (@ 100 ppm) and o-chlorophenol (@ 20 ppm and 40 ppm). Air stripping was determined to be an insignificant removal mechanism for the compounds studied.
It was noted that the acclimation times decreased with repeated exposure to a particular concentration of phenol or o-chlorophenol, and that the activated sludge bacteria first had to be acclimated to phenol before they could significantly degrade o-chlorophenol.
The effect of addition of amino acids on the rate of o-chlorophenol degradation was also studied. These were found to decrease the rate of biodegradation of 40 ppm o-chlorophenol.
Colish, Jeffery, "The Biodegradation of phenol and O-chlorophenol using activated sludge bacteria" (1984). Theses. 2108.