DO, ORP and PH as Control Parameters in an SBBR for Nitrogen Removal and Energy Saving

Abstract:

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Sequencing batch biofim reactor (SBBR) can remove nitrogen by simultaneous nitrification and denitrification in the biofilm. Based on the relationship between the degradation of COD, NH3-N and ΣN in wastewater and the variation of DO, ORP and pH, the results showed that when DO and ORP rapidly increased and reached a platform (DO and ORP turning point) and pH value rapidly decreased and approached the lowest value (pH turning point), the NH3-N and ΣN reduced to minimum. Utilizing DO, ORP and pH turning points as on-line controlling points to stop aeration ensured NH3-N completely removed and the lowest ΣN. The effect control of aeration time could save energy.

Info:

Periodical:

Advanced Materials Research (Volumes 356-360)

Edited by:

Hexing Li, Qunjie Xu and Daquan Zhang

Pages:

1684-1688

DOI:

10.4028/www.scientific.net/AMR.356-360.1684

Citation:

T. Chen and J. Li, "DO, ORP and PH as Control Parameters in an SBBR for Nitrogen Removal and Energy Saving", Advanced Materials Research, Vols. 356-360, pp. 1684-1688, 2012

Online since:

October 2011

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$35.00

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