Modeled article made of porous hydrogel, Process for making the modeled article made of porous hydrogel, Microorganism carrier, and Method and apparatus for treating wastewater

摘要

1/1 summary “Modeled article made of porous hydrogel, process for making the modeled article made of porous hydrogel, microorganism carrier, and method and apparatus for treating waste water” is provided a modeled article made porous hydrogel containing a dialdehyde acetylated polyvinyl alcohol, wherein the article shaped after freeze drying has a pore size of 0.1 to 50 µm. preferably, the shaped article made of porous hydrogel still contains a water soluble polysaccharide. also preferably, a degree of acetylation of polyvinyl alcohol is 1 to 50 mole%. Also preferably, the shaped article made of porous hydrogel is in the form of particles with an equivalent sphere diameter of 1 to 20 mm. A modeled article made of porous hydrogel like this one has high strength and good survival ability of microorganisms.