Preparation method and application of ice crystal embedded microorganism embedding gel

The invention relates to a preparation method and application of ice crystal embedded microorganism embedding gel, which can effectively solve the problems of inhibition on anoxic and anaerobic microorganism florae and non-uniform bubble distribution of a bubble type enhanced mass transfer method, and adopts the technical scheme that a polyvinyl alcohol solution, a sodium alginate solution and an activated sludge solution are mixed according to a ratio, and are uniformly stirred to obtain a mixture; adding corncob particles to obtain a gel mixed solution; spreading the refrigerated gel mixed solution in a cubic mold, then adding ice crystal particles, uniformly mixing, and immediately freezing to obtain a gel semi-solid containing the crystal particles; the obtained gel semi-solid containing the crystal particles is demolded and then added into a cross-linking agent, and after cross-linking is finished, deionized water is used for cleaning and solidifying the porous particles to obtain the ice crystal embedde