Optimization of Removal Conditions of Soluble Reactive Dyes from Aqueous Solutions by Bacillus sp. Biomass

Abstract:

The optimal conditions of by the culture of Bacillus sp.were examined, using beer wastewater to replace glucose as carbon source and energy source in the culture medium. Results showed that the COD concentration in beer wastewater favorable for the growth of the Bacillus sp.was 5000 mg•L^-1, and inoculum size of 5%(v/v), 30^◦C, initial pH 7.0 and shaking speed of 150 r•min^-1, under the optimal culture conditions, the Bacillus sp. biomass was effective in flocculating some soluble reactive dyes in aqueous solution, reactive Light-Yellow K-4G and reactive Turquoise Blue KN-G with a decolorization efficiency of 93.8 and 95.5%, respectively, using 20 mL of the culture medium in 500 mL of 100 mg•L^-1 dye solution.

• Periodical: Advanced Materials Research (Volumes 430-432)
• Pages: 395-398
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.430-432.395
• Online since: January 2012
• Authors: Gai Xia Fang, Li Hua Chen
• Keywords: Bacillus sp., Optimization, Removal Condition, Soluble Reactive Dyes

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