Abstract
An experiment was done about low type grease-interceptor collection performance of residue. As the result, it was shown that it was suitable to adopt the thing that an acrylic resin paint was applied to the plastic pellet of the styrene-acrylonitrile-copolymer combination of the specific gravity 1.10 as quasi-residue. And, a comparison with the ordinary form A which faces a factor in the vessel about the performance of A was done in accordance with the reported news.