Nitrogen and phosphorus removal by using biofilm supported natural zeolite and peat: Efficiency and mechanism study

Author

Dao-fang Zhang ; Chao-bin Shi ; Zhi-hua Xu ; Rui-pu Wang

Author_Institution

Dept. of Environ. Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China

Volume

2

fYear

2011

fDate

20-22 May 2011

Firstpage

1181

Lastpage

1184

Abstract

Both nitrogen and phosphorus removal from micro-polluted water bodies were investigated by using a biofilm supported natural zeolite and peat system. High system working efficiency was observed with 80% COD_Cr, 95% NH₄⁺-N and 40% TP removal, respectively, while the system was stabilized. Furthermore, the mechanism of contaminants removal was also elucidated, which showed that apart from adsorption and ion exchange, bio-regeneration by microorganisms also played an important role in the system. The service life of those mineral materials was greatly improved compared with the common adsorption system.

Keywords

adsorption; biotechnology; contamination; ion exchange; microorganisms; nitrogen; phosphorus; water pollution; zeolites; adsorption system; biofilm supported natural zeolite; bioregeneration; contaminant removal; ion exchange; micropolluted water bodies; mineral materials; nitrogen removal; peat system; phosphorus removal; working efficiency; Chemicals; Effluents; Lead; Polymers; natural zeolite; nitrogen removal; peat; phosphorus removal; regeneration;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930548

Filename

5930548