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KMID : 1024420200240030171
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Food Engineering Progress
2020 Volume.24 No. 3 p.171 ~ p.177
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Removal of Copper (II) in Aqueous Solution Using Bacillus sp. SRCM 112835 Isolated from Doenjang (Korean Fermented Soy Paste)
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Kim Jin-Won
Yang Hee-Jong
Ha Gwang-Su
Jeong Su-Ji
Im Su-A
Shin Su-Jin
Ryu Myeong-Seon
Seo Ji-Won
Jeong Do-Youn
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Abstract
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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.
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KEYWORD
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Bacillus sp. SRCM 112835, copper, biosorption, isotherms, kinetics
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