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FIELD STUDY OF NUTRIENT CONTROL IN A MULTICELL LAGOON
Citation:
Engel, W. AND T. Schwing. FIELD STUDY OF NUTRIENT CONTROL IN A MULTICELL LAGOON. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-80/155.
Description:
This report covers nutrient control in a serially arranged, multicell aerated lagoon system over a three year period. The objective was to develop reliable technology for reducing phosphorus and for converting ammonia-nitrogen to nitrate-nitrogen. A six-cell lagoon was modified into two independent three-cell systems. One system was maintained as a control and the other was the test system used for nutrient control. Alum was added to the third cell of the test system. Another test was conducted with alum being fed to the first cell. The alum addition in the third cell was more effective in reducing phosphorus. A plastic media tower was added after the third cell in the test system for nitrification of ammonia-nitrogen. Consistent nitrification was achieved during the warmer months and reduced efficiencies were obtained during the cold weather months.