Deicing fluid treatment in batch-loaded aerobic fluidized bed reactor
- Univ. of Dayton, OH (United States)
- Foppe Technical Group, Inc., Cincinnati, OH (United States)
This study demonstrates the feasibility of treating storm water contaminated with airport deicing fluid (ethylene glycol) in a batch-loaded aerobic fluidized bed reactors. In addition, the removal rates were measured for batch-loaded and continuously loaded fluidized bed reactors. These values were compared with each other and with more conventional wastewater treatment processes. Treating the contaminated storm water in batches eliminated the operational problems common to a continuously loaded aerobic fluidized bed reactor. Most significantly, excess biofilm growth and the accompanying maintenance and operational problems were controlled through endogenous respiration. Ethylene glycol and chemical oxygen demand removal rates of 710 and 2,200 g/m{sup 3}/day, respectively, were achieved in the batch-loaded reactor. The resulting batch-loaded full-scale installation is expected to be two to three times larger than a continuously operated fluidized bed reactor; however, it is expected to be equal to or much smaller than more conventional activated sludge and fixed film process installations. An additional benefit of the batch-loaded process is the low quantity of sloughed biofilm, which results in a low level of effluent solids (16 mg/L total suspended solids). As a result, secondary clarification and associated sludge treatment might not be required.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 577360
- Journal Information:
- Journal of Environmental Engineering, Journal Name: Journal of Environmental Engineering Journal Issue: 1 Vol. 124; ISSN 0733-9372; ISSN JOEEDU
- Country of Publication:
- United States
- Language:
- English
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