Earticle

초록

영어

This work focused on making a comparative study on the biosorbents and commercial sorbents for the recovery of nickel-containing effluents. The variety of chemically modified the waste Escherichia coli biomass from a fermentation industry as the biosorbents. Raw (RB), citric acid-treated (CAB), phosphoric acid-treated (PAB) and succinated (SB) biomass were evaluated as sorbents to remove Ni(II) ions from aqueous solutions. The results were compared with those from using Amberlite IRN-150 and IR-120 resin as commercial sorbent resins. All sorbents performed well in Ni(II) removal at pH > 5, but considering the nickel speciation and precipitation, the biosorption performance was optimized at pH 6. The modified biomass (SB (39.11 mg/g), CAB (47.14 mg/g) and PAB (46.24 mg/g)) showed the higher sorption capacity than raw biomass (RB (31.31 mg/g)). The Amberlite IR-120 resin showed the highest sorption capacity (68.85 mg/g). But, desorption efficiency of nickel ions from Amberlite IRN-150 and IR-120 resin were 20% below, which was too low for the sorption performance of the resin to be maintained at an economic level in subsequent cycles. In contrast, biomass was 70% over. The capability for recovery of the metal ions is the main advantages of the bacterial waste biomass, in addition to its low cost. It deserves further investigations into the details of practical application, for example, on the development of
surface modified, sorption process optimization and desorption methods.

키워드

저자

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

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576