Earticle

초록

영어

Palladium is one of the most expensive metals which can catalyze many chemical reactions.
Recovery of precious metals from industrial wastes is very difficult and consumes a lot of time
and money. In spite of these disadvantages it would be still profitable if these metals are
recovered. This work estimated sorption characteristics of Pd(II) ion by Corynebacterium
glutamicum and recovered it from the Pd(II)-sorbed biomass. Palladium biosorption performed
well at pH 3. Sorption isotherm at pH 3 was determined to be 137.6 mg/g by the Langmuir
model. Kinetic experiments revealed that the sorption equilibrium was attained within 1 h,
which was much faster than that of many reported sorbents. After sorption, the Pd(II)-loaded
biomass was charred at 600 oC for 3 h, and the ash bound with metal ions was dissolved in aqua
regia for metal recovery. Based on the ICP analysis, the recovery rate of Pd(II) ions was
calculated as a relative value from the initial amount of the bound metal ions. From the above
results it could be concluded that C. glutamicum biomass would be a useful raw material for
low-cost and efficient biosorption and recovery of precious metals.

저자

• Sung Wook Won [ Division of Environmental and Chemical Engineering and Research Institute of Industrial Technology, Chonbuk National University ]
• In-Seob Kwak [ Department of Bioprocess Engineering, Chonbuk National University ]
• Sun Beom Choi [ Division of Environmental and Chemical Engineering and Research Institute of Industrial Technology, Chonbuk National University ]
• Juan Mao [ Department of Bioprocess Engineering, Chonbuk National University ]
• Sok Kim [ Division of Environmental and Chemical Engineering and Research Institute of Industrial Technology, Chonbuk National University ]
• M. Sathishkumar [ Division of Environmental and Chemical Engineering and Research Institute of Industrial Technology, Chonbuk National University ]
• Min A Bae [ Division of Environmental and Chemical Engineering and Research Institute of Industrial Technology, Chonbuk National University ]
• Yeoung-Sang Yun [ Division of Environmental and Chemical Engineering and Research Institute of Industrial Technology, Chonbuk National University, Department of Bioprocess Engineering, Chonbuk National University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576