Title page for ETD etd-09082012-040529

Type of Document Master's Thesis
Author McDaniel, Charles Russell
URN etd-09082012-040529
Title Effects of holding tank odor control chemicals on aerobic wastewater treatment
Degree Master of Science
Department Environmental Engineering
Advisory Committee
Advisor Name Title
Novak, John T. Committee Chair
Boardman, Gregory D. Committee Member
Randall, Clifford W. Committee Member
  • Recreation areas
Date of Defense 1988-11-05
Availability restricted

Three odor control chemicals and formaldehyde were tested for detrimental affects on activated sludge using bench-scale bioreactors. Slug fed and continuous flow bioreactors were monitored for changes in suspended solids, specific oxygen uptake rate, sludge settling and compaction, and effluent COD. The biodegradability of dyes and the generation of foam was also measured.

Formaldehyde and the formaldehyde·based odor control chemical 'Aqua-Kem" damaged the ability of activated sludge to treat wastewater. They resulted in deceased suspended solids concentrations and increased effluent COD. Formaldehyde hinders the utilization of normal wastewater substrate by activated sludge. The dye in "Aqua-Kem" is not biodegradable, and surfactants in the chemical generate foam.

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