Ecological Assessment of Sludge Biocenosis while Nitrogen Removal

Author:

Vilson Elena V.1,Dolzhenko Lidiya A.1,Schutskaya Elena E.1

Affiliation:

1. Don State Technical University

Abstract

The paper presents the results of studies on increasing the efficiency of wastewater treatment from nitrogen compounds during the re-engineering of sludge bioreactors with the use of contact carriers for biomass immobilization. To assess the contribution of the indicative species of microorganisms involved in the processes of nitrification and denitrification, an analysis of the indices of species diversity by functional zones was carried out. The results of the operation of the bioreactor are given when using reticulate contact carriers in the form of partitions to separate the functional zones. It was noted that the oxidation-reduction potential of the bioreactor in nitrogen increased 1.7 times after re-engineering.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference10 articles.

1. Y.M. Meshengisser, Reengineering of wastewater treatment facilities, Moscow, (2012).

2. P.H. Nielsen, FISH Handbook for Biological Wastewater Treatment. Identification and quantification of microorganisms in activated sludge and biofilms by FISH, IWA Publishing, London, (2009).

3. E.S. Gogina, I.A. Gulshin, Study of the principle possibility of using the one-stage denitrification-nitrification scheme for the reconstruction of treatment facilities in the Russian Federation, Vestnik MGSU. 10 (2013) 166—174.

4. L.A. Dolzhenko, Immobilization of activated sludge on bioreactor carriers under nitrification and denitrification conditions, Obrazovanie i nauka v sovremennom mire. Innovatsii. 4 (2016) 150 - 158.

5. E. P. Odum, Ecology, Mir Publ., Moscow, (1986).

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