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Nitrification in the Sequenching Batch Biological Reactor

James E. Alleman and Robert L. Irvine
Journal (Water Pollution Control Federation)
Vol. 52, No. 11 (Nov., 1980), pp. 2747-2754
Stable URL: http://www.jstor.org/stable/25040953
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Nitrification in the Sequenching Batch Biological Reactor
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Abstract

As a design alternative for the activated sludge process, the sequencing batch biological reactor provides inherent flexibility in the level of maintained wastewater treatment. The capacity to incorporate the nitrification reaction has been demonstrated by a bench-scale system, using a controlled solids wastage routine to retain the desired nitrifying bacteria. With a synthetic, high-strength waste influent, the reactor consistently achieved 98 + % oxidation of both organic carbon and nitrogen. Satisfactory sludge settleability produced a clear effluent with low suspended solids. Consistent exposure to periods of reduced oxygen tension had no apparent effect on the activity of the nitrifying organisms. The phased operation of the sequencing batch biological reactor provided an opportunity to observe and evaluate the transmission of the various substrate species over the course of the oxidative reactions.

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