▎ 摘　　要

NOVELTY - Manufacture of grid involves mixing microcrystalline graphene with glass-ceramic or bismuth tungstate-modified components to obtain microcrystalline graphene hybrid microcrystalline glass micropowder or microcrystalline graphene hybrid bismuth tungstate-modified component, adding polyethylene-polypropylene resin, mixing by tri-screw method to obtain microcrystalline graphene-modified microcrystalline glass micropowder or highly-plasticized mixture of microcrystalline graphene hybrid bismuth tungstate-modified component and polyethylene-polypropylene resin, extruding highly-plasticized mixture, directly blowing into film filled with high-filled microcrystalline graphene-modified microcrystalline glass micropowder or microcrystalline graphene hybrid bismuth tungstate-modified component and subjecting film to ultrasonic embossing. USE - Manufacture of grid for treating black odorous water bodies. ADVANTAGE - The method enables simple, energy-efficient and environmentally-friendly manufacture of grid. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for usage method of grid for treating black odorous water bodies, which involves placing grid in a shallow water area of a river and a shallow water in a water-inverted slope area and using a water depth safety warning and column guard warning line.