In order the rivers, the waterway, direct purification method and the direct purifier and direct purification system null carbon count of water such as

摘要

PROBLEM TO BE SOLVED: To provide a direct cleaning method, apparatus, and system for a river, a channel, and a lake, by which an aerobic river, channel, and lake is denitrified directly.;SOLUTION: In this direct cleaning method, a typical constitution is that a material consisting of a solid mainly consisting of a carboxylic acid having carbon atoms of ≥10 or an alcohol having carbon atoms of ≥12, and a carrier body is directly installed in the river, the channel, and the lake.;COPYRIGHT: (C)2003,JPO