Removal of bacteria from water by adhesion to cross-linked poly(vinylpyridinium halide).

Applied and Environmental Microbiology
N KawabataT Matsumoto

Abstract

Cross-linked poly(vinylpyridinium halide) was found to have a novel and remarkable ability to remove bacteria from water. For example, when 10 g (wet weight) of cross-linked poly(N-benzyl-4-vinylpyridinium bromide) was contacted with 20 ml of suspensions of Escherichia coli (9.7 X 10(4) to 9.7 X 10(7)/ml), Salmonella typhimurium (8.0 X 10(6) to 1.1 X 10(7)/ml), Streptococcus faecalis (5.0 X 10(7)/ml), Staphylococcus aureus (8.1 X 10(7)/ml), and Pseudomonas aeruginosa (3.2 X 10(5)/ml) under stirring in sterilized physiological saline at 37 degrees C, 99% of the viable cells of these bacteria were removed in 2 to 6 h. When suspensions of these bacteria (10(5) to 10(8) cells per ml) were passed through a column (20 mm by 100 cm) of cross-linked poly(N-benzyl-4-vinylpyridinium bromide) at 37 degrees C with a flow rate of 0.8 to 1.4 bed volumes per h, 97 to 100% of the viable cells were eliminated from the suspensions during the treatment. Mechanistic studies demonstrated that cross-linked poly(vinylpyridinium halide) irreversibly captured these bacteria alive during the treatment. That is, total organic carbon was removed during the treatment, and the bacteria which adhered to the resin proliferated on the bacterial medium. The adh...Continue Reading

References

Jun 1, 1960·Bacteriological Reviews·B ROTMAN

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Citations

Oct 20, 1989·Biotechnology and Bioengineering·N Kawabata, M Oda
Dec 1, 1990·Epidemiology and Infection·N KawabataY Minekawa
Dec 3, 2010·Colloid and Polymer Science·Agata M BrzozowskaWillem Norde
Oct 1, 1988·Applied and Environmental Microbiology·N Kawabata, M Nishiguchi
Jan 16, 2007·International Journal of Biological Macromolecules·Yoon Seok KimYoung Ha Rhee

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