- Title
- Biological treatment of turkey processing wastewater with sand filtration
- Author
- Kang, Young Woon
- Degree
- Doctor of Philosophy, Ohio State University,
Food, Agricultural, and Biological Engineering, 2004.
- Advisor
- Karen M. Mancl
- Abstract
- This research was conducted to assess the feasibility of turkey processing wastewater treatment with a sand filter system. The effects of operational parameters such as hydraulic and organic loadings, filter design, dosing frequency, and detergent as an additive on the treatment of turkey processing wastewater were investigated using bench-scale sand filters. This study shows that sand filtration system is a feasible treatment to remove organic materials from turkey processing wastewater, including total organic carbon (TOC) and biochemical oxygen demand (BOD5), and nutrients (ammonia and phosphate). The efficiency and life span of the treatment process were related to the extent of hydraulic loading of the sand filters. Three-layer sand filter design is recommended to achieve optimum organic material removal and extended operation. A pea gravel cap is a recommended as a pretreatment method to reduce clogging in sand filters. To optimize the effluent quality and length of filter run, the organic loading should be relatively low with the three-layer sand filters. Multiple dosing of sand filters provided superior performance in the treatment efficiency and filter run time. Multiple dosing and time-extended dosing had the greatest impact on eliminating flow peaks and fluctuations in wastewater flow through the sand filters at increasing loading rates. Performance of frequent dosing at low loading rates was superior to frequent dosing at high loadings for the same daily amount of wastewater. A reduction in hydraulic intensity by multiple dosing improved the life span of sand filters. Filter resting recovered treatment performance of sand filters. Resting and drying of used sand filters for 35 days improved the treatment and lengthened the filter runs. Fat was effectively removed from turkey processing wastewater upon sand filtration combining physical and biological processes. The three-layer sand filter without additional detergent effectively removed fat from the turkey processing wastewater. Multiple dosing with a lower loading rate improved the fat removals.
- Subject Headings
- Engineering, Environmental
Document number: osu1078903968.
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