Biological Denitrogen in Floating Media Deep Bed Filtration Process

Author

Fan Rong-Gui ; Fan Bin ; Luan Zhao-Kun

Author_Institution

Coll. of Resource & Environ. Eng., Liaoning Tech. Univ., Fuxin, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

A synergetic process for simultaneously filtration and denitrogenation in two cascaded deep beds was studied for advanced treatment of secondary effluent. Both the deep beds were up-flow and packed with 2 m height of 3~4 mm polystyrene foam pellets. The first bed was assembled an aerator in its bottom for nitration, and the second bed was added methanol in its influent for denitrificaion. When HRT=1~2 hr, the efficiency of ammonium removal and nitrate was 90% and 95% respectively. Turbidity of the effluent was less than 1 NTU. It was also found that backwashing had important effects on system operation.

Keywords

ammonium compounds; biochemistry; contamination; decontamination; dissolving; effluents; films; filtration; microorganisms; nitrogen compounds; polymer foams; surface morphology; turbidity; wastewater treatment; water pollution; aerator; ammonium removal; backwashing; biological denitrogen; deep bed filtration process; denitrogenation; floating media; methanol; nitration; polystyrene foam pellets; secondary effluent treatment; simultaneously filtration; size 2 m; synergetic process; turbidity; Assembly; Cities and towns; Educational institutions; Effluents; Filtration; Pressure gauges; Sampling methods; Solids; Temperature; Wastewater treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162448

Filename

5162448