Development of Supporting Materials for Microbial Immobilization and Iron Oxidation

Abstract

We developed the microbial immobilization particle with curdlan and activated carbon, which has great adsorption capacity. The characteristics of porosity and mechanical strength of these supporting particles are dependent on manufacturing method. The supporting particle showed the best performance when the ratio of curdlan and activated carbon was 30 to 6 g/L. Brumauer-Emmett-Teller (specific surface area) and swelling capacity of the carrier were 52.63 m2/g and 17 (w/w), respectively. The immobilization characteristics of iron-oxidizing bacteria on supporting particles were observed using a scanning electron microscope. The concentration of microorganism on the surface of supporting particle was increased with reaction time. As the number of iron oxidation batch cycles increased, the iron oxidation rate increased.

Degradation of malic acid in wine by immobilizedIssatchenkia orientaliscells with oriental oak charcoal and alginate

“…Activated carbons are used in a variety of applications including as an adsorbent and catalyst support because of their high adsorptive capacities, adequate pore size distributions and relatively high mechanical strengths (Guo and Lua 1998). Alginate has been shown to be very efficient for microbial cells immobilization together with activated carbons (Son et al. 2003).…”

“…Issatchenkia orientalis KMBL 5774 cells were immobilized using oriental oak charcoal powder and sodium alginate by the method of Son et al. (2003).…”

Heterogeneous Composites on the Basis of Microbial Cells and Nanostructured Carbonized Sorbents

“…Their applications include the adsorptive removal of color, odor, taste, undesirable organic and inorganic pollutants from drinking and waste water; air purification in inhabited spaces; purification of many chemical, and pharmaceutical products, etc. [19][20][21]28]. Their use in medicine and health applications to combat certain types of bacterial ailments and for the adsorptive removal of certain toxins and poisons, and for purification of blood, becomes increasingly popular [29,30].…”