Purification method by mixing/diffusion of closed water zone and mixing/diffusion apparatus
AssigneesTokyo Kyuei Co., Ltd., Hitachi Metals, Ltd.
InventorsMakoto Nakamura, Katsuya Kobayashi
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Abstract
A purification method by mixing and diffusion of a closed water area comprises the steps of sucking bottom layer water and surface layer water, preparing a mixed water by mixing them before discharging, and discharging the mixed water into a water layer having substantially the same temperature as that of the mixed water to form and diffuse a density current of the mixed water. Therefore, convection currents in a vertical direction can be prevented, and the mixed water can be quickly diffused across a broad range of the closed water zone.
Claims5
A method for purifying a closed water area by mixing and diffusing, which comprises the steps of:
- selecting a mixing ratio of a surface water layer and a bottom water layer based on temperature and weight;
- sucking said surface water layer and said bottom water layer of said closed water area at the mixing ratio;
- mixing said surface water layer and said bottom water layer to prepare a mixed water;
- and
- discharging said mixed water into a water layer having a temperature nearly the same as that of said mixed water to form a density current of said mixed water, the discharging step including diffusing the mixed water radially in nearly the horizontal direction through said water layer, said water layer constituting one of stratified layers of said closed water area comprising a plurality of water layers having different temperatures and different densities.
Dependencies are inferred from the claim text.