초록

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Abstract ▼ AI-Helper

Zoogloea ramigera 115, well known type of bacteria to produce slime in sewage plants, was selected for biopolymer production. The extracted biopolymer showed high uptake capacity of metals such as cadmium and zinc. Especially the fermentor broth itself showed high adsorption of metal and could be us...

Zoogloea ramigera 115, well known type of bacteria to produce slime in sewage plants, was selected for biopolymer production. The extracted biopolymer showed high uptake capacity of metals such as cadmium and zinc. Especially the fermentor broth itself showed high adsorption of metal and could be used a biosorbent without an additional separation process. Biopolymer was immobilized into beads of calcium alginate and used in a packed bed reactor for the purpose of valued metals recovery. The biopolymer showed high removal efficiencies of 80% or greater for Cu, Cd, Mn and Zn, and high stability in sorption-desorption-resorption experiments. The immobilized biopolymer systems were found to be comparable to other metal removal systems such as ion exchange resins and to be of potential industrial application value.