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Biological denitrification in drinking water treatment using the seaweed Gracilaria verrucosa as carbon source and biofilm carrier
Ovez, B.; Mergaert, J.; Saglam, M. (2006). Biological denitrification in drinking water treatment using the seaweed Gracilaria verrucosa as carbon source and biofilm carrier. Water Environ. Res. 78(4): 430-434. dx.doi.org/10.2175/106143006X98822
In: Water Environment Research. Water Environment Federation: Alexandria, VA. ISSN 1061-4303, more
Peer reviewed article  

Available in Authors 

Keyword
    Marine
Author keywords
    drinking water; biological denitrification; carbon source; seaweed;Gracilaria verrucosa; fixed bed

Authors  Top 
  • Ovez, B.
  • Mergaert, J., more
  • Saglam, M.

Abstract
    Chemical and microbiological aspects were investigated with regard to biological denitrification of drinking water using the seaweed Gracilaria verrucosa as the carbon and energy substrate and as physical support for the microbial flora in semibatch, fixed-bed reactors. Complete removal of nitrate (100 mg/L) was readily achieved without accumulation of nitrite. Microbiological analysis indicated that the effluent of the reactor contained high numbers of bacteria (> 10(6)/mL total count). Among the 44 bacterial strains isolated directly from the samples or isolated after enrichment at 37 degrees C, 25 different fatty acid profiles were found, indicating a complex microflora, including potential pathogens.

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