Study on the Effect of Flow Velocity on the Denitrification of Groundwater

Xin Ran Jiang; Li Na Zheng; Xing Ai; Lin Zhang; Wei Nan Wu

doi:10.4028/www.scientific.net/AMR.1092-1093.933

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1092-1093Study on the Effect of Flow Velocity on the...

Study on the Effect of Flow Velocity on the Denitrification of Groundwater

Abstract:

Using the mixed filling reaction column, this article examines that the influence of different inlet flow rate on the removal of nitrate nitrogen in groundwater, respectively by 90mL/h, 150 mL/h, 210mL/h velocity, under 30 °C each run five days, comparativly studies the influence of velocity on denitrification. The results show that the flow rate has an important effect on the denitrification of water, when the water inlet velocity decreased from 150mL/h to 90mL/h, the concentration of nitrate nitrogen reaction column effluent decreased gradually, and the denitrification of nitrite nitrogen accumulation system has been in a low level, but the ammonia nitrogen accumulation only in the flow rate of 90mL/h, began when the flow rate decreased significantly; also increased from 90mL/h to 210mL/h, the effluent nitrate nitrogen concentration, nitrite nitrogen concentration and ammonia nitrogen concentration increased significantly.

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Periodical:

Advanced Materials Research (Volumes 1092-1093)

Pages:

933-937

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.933

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Online since:

March 2015

Authors:

Xin Ran Jiang, Li Na Zheng*, Xing Ai, Lin Zhang, Wei Nan Wu

Keywords:

Denitrification, Groundwater, Inlet Velocity, Nitrate

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