Abstract
An oxidation ditch is a modified activated sludge biological treatment process that uses long solids retention times (SRTs) to remove biodegradable organics. The typical oxidation ditch is equipped with aeration rotors or brushes that provide aeration and circulation. The wastewater moves through the ditch at 1 to 2ft/s. The ditch may be designed for continuous or intermittent operation. Because of this feature, this process may be adaptable to the fluctuations in flows and loadings associated with recreation area wastewater production. Several manufacturers have developed modifications to the oxidation ditch design to remove nutrients in conditions cycled or phased between the anoxic and aerobic states.
This chapter covers all aspects of the process including process description, applicability, design criteria, performance, package oxidation ditch plants, operation and maintenance, design parameters and procedure, costs and a worked out design example.
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Shammas, N.K., Wang, L.K. (2009). Oxidation Ditch. In: Wang, L.K., Pereira, N.C., Hung, YT. (eds) Biological Treatment Processes. Handbook of Environmental Engineering, vol 8. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60327-156-1_12
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DOI: https://doi.org/10.1007/978-1-60327-156-1_12
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