Water blooms of O.bornettii, a producer of off-flavour compounds, occasionally occur in Lake Mjoesa. Accordingly a new water works is planned to alleviate the associated taste and odour problems. A pilot plant was constructed in 1985 and a continuous water treatment study was performed over a one year period. Granular activated carbon (GAC) was compared with ozonation-GAC. Filtrasorb-400 was used and the empty-bed contact-time of the GAC-filters was 21 min. The ozone dosage varied from 2 to 5 mg O3/l. To simulate water blooms, commercially produced geosmin and 2-methyliso-borneol (MIB) were added to the water in concentrations from 10 to 190 ng/l. A slightly higher TOC-uptake was seen in the ozonation-GAC combination. This may indicate that the ozonation process is forming organic oxidation products that are competing with the geosmin and MIB for adsorption sites in the GAC-filter.
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Research Article| August 01 1988
Pilot Scale Studies of Geosmin and 2-Methylisoborneol Removal
E. A. Vik;
Water Sci Technol (1988) 20 (8-9): 229–236.
E. A. Vik, R. Storhaug, H. Naes, H. C. Utkilen; Pilot Scale Studies of Geosmin and 2-Methylisoborneol Removal. Water Sci Technol 1 August 1988; 20 (8-9): 229–236. doi: https://doi.org/10.2166/wst.1988.0247
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