Influence of temperature on the activity of anammox granular biomass. - Publication - MOST Wiedzy

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Influence of temperature on the activity of anammox granular biomass.

Abstract

The aim of this study was to determine a short-term and long-term effect of temperature on the anammox rate and determination of temperature coefficients in the Arrhenius and Ratkowsky equations. The short-term effects of temperature on the anammox granular biomass were investigated in batch tests at ten different temperatures in the range of 10–55 °C. The maximum overall nitrogen removal rate of 1.3 gN gVSS−1·d−1 was observed at 40 °C (VSS: volatile suspended solids). The minimum rate, close to 0 gN gVSS−1·d−1, was observed for the limits of the analyzed temperature range (10 and 55 °C). The activity tests carried out at 55 °C showed an irreversible loss of the activity due to the observed biomass lysis. Subsequently to the batch tests, a sequencing batch reactor (SBR) was operated at different temperatures (from 30 to 11 °C) to determine the long-term effects of temperature. The system was successfully operated at 15 °C, but when temperature was decreased to 11 °C, nitrite started to accumulate and the system lost its stability. The temperature coefficient (θ) was 1.07 for the batch tests carried out in the temperature range of 10–40 °C. In contrast, during the long-term SBR operation, substantially different θ had to be estimated for two temperature ranges, 1.07 (T = 15–30 °C) and 1.65 (T = 11–15 °C).

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
WATER SCIENCE AND TECHNOLOGY no. 73, edition 10, pages 2518 - 2525,
ISSN: 0273-1223
Language:
English
Publication year:
2016
Bibliographic description:
Sobotka D., Czerwionka K., Mąkinia J.: Influence of temperature on the activity of anammox granular biomass.// WATER SCIENCE AND TECHNOLOGY. -Vol. 73, iss. 10 (2016), s.2518-2525
DOI:
Digital Object Identifier (open in new tab) 10.2166/wst.2016.103
Verified by:
Gdańsk University of Technology

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