Subtitle:

Attempts to increase the efficiency of nitrate reduction process in biological municipal sewage treatment “MEANDER”

Publisher:

Committee on Biotechnology PAS ; Institute of Bioorganic Chemistry PAS

Abstract:

In this work the attempts to increase the efficiency of nitrate reduction in denitrifyingbacteria cells were made. The experiments were carried out in biological municipal sewage treatment plant “MEANDER”. Two different tests were used. One procedure was based on theprolongation of the sedimentation time in order to decrease the level of inhibiting O2 in thesewage (it is respiration by aerobic microorganisms). The level of NO3 was increased in thistest compared to 6 h “standard” alternate sedimentation/aeration, but the speed of nitratereduction was not so satisfactory. The other procedure involved attempts to increase the numberof denitrifying bacteria in the sedimented chamber. The denitrifying bacteria originated from rowsewage-sludge or from a prepared in advance culture of Pseudomonas stutzeri. Pseudomonasaerogenes and Bacillus sp. The effects in both tests show the increase in speed of nitratereduction, particulaiy after 24 h from the addition of the culture prepared in advance. However,the disadvantage of the second way was introducing additional NO3 together with the bacteria.

Relation:

Biotechnologia, vol.29, 2 (1995)-.

Volume:

29

Issue:

2

Start page:

164

End page:

178

Detailed Resource Type:

Article

Format:

application/pdf

Resource Identifier:

0860-7796 ; oai:rcin.org.pl:147889 ; IChB B-25

Source:

Library of Institute of Bioorganic Chemistry PAS

Language:

pol

Language of abstract:

eng

Temporal coverage:

1988-2010

Rights:

Creative Commons Attribution BY-SA 4.0 license

Terms of use:

Copyright-protected material. [CC BY-SA 4.0] May be used within the scope specified in Creative Commons Attribution BY-SA 4.0 license, full text available at:

Digitizing institution:

Institute of Bioorganic Chemistry of the Polish Academy of Science

Original in:

Institute of Bioorganic Chemistry of the Polish Academy of Science

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Access:

Open