Biosorbent composition prepared by colloidal silica gel and adsorption and recovery method of heavy metal using the same

摘要

The present invention relates to a method for producing a spherical silica bead in which microbial cells or chemically modified microbial cells by introducing oxime groups or phosphate groups are mixed with colloidal silica sol and the mixture is put into a thermostatic chamber to carry a microbial cell-The present invention relates to a biosorbent capable of adsorbing heavy metals and the like produced by aging a silica bead and extracting it with a solvent. The present invention also includes a method for desorbing and recovering a heavy metal adsorbed on the bioabsorbent. The present invention also relates to a method and apparatus for preparing silica beads carrying microbial cells by adding a mixture of chemically modified microorganisms and colloidal silica sol to a thermostat, wherein the silica beads are immersed in an oil-And a method and an apparatus for producing silica beads comprising a plurality of glass tubes for dropping the mixture in a liquid state.