Control of Nocardia in a Municipal Activated Sludge Facility

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by John D. Dietz, Univ of Central Florida, United States,
Julius F. Charba, Univ of Central Florida, United States,
Robert K. Anderson, Univ of Central Florida, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering:

Abstract: The paper reports on a study to determine the cause(s) of the biological imbalance and identify corrective measures. Project activities included: isolation and identification of filamentous organism(s); determination of solids handling capacity of activated sludge final clarifiers; return sludge chlorination for filament reduction; operation of bench-scale reactors at variant growth rates for species selection; and operation of full-scale facility at alternate growth rates for species selection. Study results are discussed.

Subject Headings: Solid mechanics | Activated sludge | Sewage | Biological processes | Clarifiers | Chlorine | Benchmark |

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