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8757256 
Journal Article 
Growth inhibition of bacillus subtilis by basic-dyes 
Ogawa, T; Shibata, M; Yatome, C; Idaka, E 
1988 
Yes 
Bulletin of Environmental Contamination and Toxicology
ISSN: 0007-4861
EISSN: 1432-0800 
40 
4 
545-552 
English 
2453237 
WOS:A1988M692900011 
Dyeing at factories is usually carried out in conjunction with desizing, scouring and finishing. The total drainage thus contains many water-soluble organic substances (Toyota 1976, Tashiro 1979, Nakao et\al. 1975). Since these are not adequately eliminated by physical treatment, the water is purified in many cases by biological treatment such as the activated sludge method. However, dyes, bichromates, etc. present in the water often cause growth inhibition of microbes and make purification more difficult (Hashimoto and Fujita 1972). Dye toxicity has been frequently studied with respect to sterilization (Horiguchi 1969) and mutation (Brown et al. ~978, Haveland-Smith et al. 1979) for medical application, but not much in regard to water-treatment (Inoue and Honda 1970, Inoue and Honda 1971). The influence of basic dyes on the growth rate and nucleic acid content of cells was investigated in the present study to elucidate inhibitive reactions in the biological treatment of waste dye-liquor.