Study on removal of tastes and odors from drinking water through ozonation - biological activated carbon process

Author

Shi, Chunhong ; Yuan, Rongfang ; Zhou, Beihai ; Yu, Liying ; Zhang, Chunlei ; Gu, Junnong

Author_Institution

Dept. of Environ. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China

fYear

2011

fDate

22-24 April 2011

Firstpage

4507

Lastpage

4510

Abstract

2-methylisoborneol (MIB) and geosmin cannot readily be removed by conventional water treatments. Ozonation biological activated carbon (O₃-BAC) process is an attractive option for MIB and geosmin removal. For MIB and geosmin with an initial concentration of 500 ng/L, the removal efficiencies of MIB (geosmin) by ozonation, biodegradation and activated carbon adsorption were 51% (73%), 19% (17%) and 30% (10%), respectively when ozone dose was 2.0 mg/L, empty bed contact time 12 min and filter height 550 mm. Filter height of 300 mm was enough for removing MIB and geosmin to below its odor threshold concentration from 500 ng/L. About 48% (57%), 32% (30%) and 10% (13%) of MIB (Geosmin) were removed by ozonation, biodegradation and activated carbon adsorption, respectively.

Keywords

activated carbon; adsorption; ozonation (materials processing); water treatment; 2-methylisoborneol; MIB removal; activated carbon adsorption; biodegradation; conventional water treatments; drinking water; empty bed contact time; filter height; geosmin removal; odor removal; ozonation biological activated carbon process; ozone dose; removal efficiency; taste removal; Aquaculture; Biodegradation; Carbon; Compounds; Marine animals; Oxidation; MIB; drinking water; geosmin; ozonation-biological activated carbon;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5774209

Filename

5774209