The Simultaneous Removal of DOC and Ammonia Nitrogen from Surface Water by Hybrid Process

Author

Jin, Yong-Wei ; Dong, Ya-Mei ; Zhang, Zhen-Jia

Author_Institution

Sch. of Environ. Sci. & Eng., Shanghai Jiaotong Univ., Shanghai, China

Volume

2

fYear

2009

fDate

4-5 July 2009

Firstpage

36

Lastpage

39

Abstract

The performance of pilot scale hybrid process of fluidized biofilm process, chemical coagulation and ultrafiltration system for surface water treatment was studied. In order to remove ammonia nitrogen (NH₄ ⁺-N) and DOC efficiently, fluidized biofilm process with entrapped nitrifying bacteria pellets and powder activated carbon was applied to the hybrid process. FeCl₃ldr6H₂O and 7 mg (Fe)/l were determined as optimal chemical coagulation condition at pilot scale treatment. NH₄ ⁺-N concentration in the produced water was less than 0.5mg/l at the overall combined process. DOC, UV₂₅₄ and THMFP removals of 59.0%, 59.8% and 67.7% were also achieved by the overall hybrid process. Fluidized biofilm process contributed 93% NH₄ ⁺-N removal and 10% DOC removal. This combined process was highly competitive in comparison to conventional treatment for surface water in NH₄ ⁺-N and DOC removal.

Keywords

ammonia; biotechnology; coagulation; fluidised beds; microorganisms; organic compounds; ultrafiltration; water quality; water resources; water supply; water treatment; FeCl₃-H₂O; NH₃; THMFP measurement; UV₂₅₄ measurement; chemical coagulation; dissolved organic carbon; fluidized biofilm process; hybrid process; nitrifying bacteria pellets; powder activated carbon; surface water DOC removal; surface water ammonia nitrogen removal; surface water treatment; ultrafiltration system; Biomembranes; Chemical processes; Coagulation; Fluidization; Inductors; Microorganisms; Nitrogen; Powders; Surface treatment; Water pollution; chemical coagulation; fluidized biofilm process; hybrid process; surface water; ultrafiltration;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3682-8

Type

conf

DOI

10.1109/ESIAT.2009.496

Filename

5199828