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Removal of Copper (II) in Aqueous Solution Using Bacillus sp. SRCM 112835 Isolated from Doenjang (Korean Fermented Soy Paste)

산업식품공학 2020년 24권 3호 p.171 ~ 177
김진원, 양희종, 하광수, 정수지, 임수아, 신수진, 류명선, 서지원, 정도연,
소속 상세정보
김진원 ( Kim Jin-Won ) - Microbial Institute for Fermentation Industry
양희종 ( Yang Hee-Jong ) - Microbial Institute for Fermentation Industry
하광수 ( Ha Gwang-Su ) - Microbial Institute for Fermentation Industry
정수지 ( Jeong Su-Ji ) - Microbial Institute for Fermentation Industry
임수아 ( Im Su-A ) - Microbial Institute for Fermentation Industry
신수진 ( Shin Su-Jin ) - Microbial Institute for Fermentation Industry
류명선 ( Ryu Myeong-Seon ) - Microbial Institute for Fermentation Industry
서지원 ( Seo Ji-Won ) - Microbial Institute for Fermentation Industry
정도연 ( Jeong Do-Youn ) - Microbial Institute for Fermentation Industry

Abstract


In this study, Bacillus sp. SRCM 112835 was isolated from soybean paste (Doenjang, Korean Fermented Soy Paste).
Bacillus sp. SRCM 112835 showed biosorption of the Cu (II) in aqueous solution. The strain effectively absorbed 30.2% of the Cu (II) from a 52.3 mg/L within 60 min. The properties of the Bacillus sp. SRCM 112835 were investigated by Fourier transform infrared spectroscopy (FT-IR), point of zero charge (pHpzc), and phylogenetic analysis.
The influence of initial pH (2.08-9.98) and biomass dosage (0.005-0.07 g) were likewise probed. Isotherm and kinetic experiment results suggested that the Langmuir isotherm and pseudo-second-order kinetic models well-fitted the experimental data, respectively.

키워드

Bacillus sp. SRCM 112835; copper; biosorption; isotherms; kinetics

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