IMPROVING METHOD FOR BOTTOM SEDIMENT IN LAKES AND THE LIKE

摘要

PROBLEM TO BE SOLVED: To provide an improving method for bottom sediment in lakes and the like in which a bottom sediment improving material, such as a chemical and a microorganism material, fed into the bottom sediment for improving poor environment of the bottom sediment can be easily thrown into the bottom sediment, and by which the duration of bottom sediment improving effect of the material and a rate of eluting and leaching the material into the bottom sediment can be controlled. ;SOLUTION: An improving method for bottom sediment in lakes and the like comprises the steps of filling a bottom sediment improving material into a container formed with a porous inorganic material, throwing the container into the bottom sediment of the lakes, etc., and eluting or leaching the bottom sediment improving material from the inside of the container into the bottom sediment to diffuse it thereinto.;COPYRIGHT: (C)2000,JPO