Application of pH, DO and OUR Control for Short-Cut Nitrification

Abstract:

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A sequencing batch reactor was employed to treat ammonia wastewater, the pH, DO and OUR were adopted to monitor the start of short-cut nitrification. The results showed that the start of short-cut nitrification was achieved in 31days, ammonia consumption rate was higher than 90% and nitrite accumulation rate was higher than 85%, when pH, DO and OUR were applied to monitor and determine the aeration time, under the condition of temperature was 30°C. With ammonia shock loading conditions, OUR curve couldn’t indicate the end of short-cut nitrification exactly. But real-time control using pH and DO could achieve a stable shortcut nitrification under steady stage and ammonia load shocking stage.

Info:

Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

2112-2116

DOI:

10.4028/www.scientific.net/AMR.347-353.2112

Citation:

W. B. Chen et al., "Application of pH, DO and OUR Control for Short-Cut Nitrification", Advanced Materials Research, Vols. 347-353, pp. 2112-2116, 2012

Online since:

October 2011

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Price:

$35.00

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