| abstract |
PROBLEM TO BE SOLVED: To provide a foamed molded product, particularly a foamed molded product suitable as a carrier for immobilizing a microorganism for a fluidized bed or a carrier for a combined septic tank used in a sewage treatment apparatus for treating sewage using microorganisms. provide. SOLUTION: This is a foamed molded article obtained by foaming and molding a resin composition mainly comprising a polyolefin resin, a hygroscopic substance, a glycerin derivative, and an inorganic filler, and has open cells therein. The open cells are composed of through cells in which two or more locations on the inner surface of the open cells communicate with the surface of the foamed molded product, and semi-through cells in which only one location on the inner surface of the open cells communicates with the surface of the foamed molded product. A foam molded article characterized in that the occupation ratio of the volume of the open cells in the total volume is 20% or more. |