GRANULAR MAGNESIUM COMPOUND-BASED MODIFIER FOR WATER QUALITY AND BOTTOM SEDIMENT QUALITY

摘要

The present invention provides an improver capable of modifying the water quality and bottom sediment in deteriorated closed water.;A material composed of a high-molecular powder granule raw material, the size of which is 20 mm or less in particle diameter, and self-decay after addition into water, wherein particles of 0.1 mm or less in 60 minutes after the addition are 10% by weight or more. do.