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US 5,507,950 AGranted
Floating water purification device and water purification method
AssigneeResource Biology Research Institute Co., Ltd.
InventorsShohei Senda, Moriju Hasegawa
Life of this patent
Estimating the term…
Abstract
A floating water purification device comprising at least a treatment tank enclosing a certain water area and a float which causes the tank to float in water, is characterized by the treatment tank having a plurality of inner biological supports together with at least one water inlet and one water outlet.
Claims20
A floating water purification device comprising:
- a treatment tank, said treatment tank having an open bottom, side walls enclosing a region, at least one water inlet in a first vertical side wall and at least one water outlet in a second vertical side wall facing said first side wall, wherein fluid can flow through said region in a horizontal direction from said at least one water inlet to said at least one water outlet,
- a float which permits said tank to float in water,
- a plurality of U-shaped biological supports woven on a frame and positioned within said tank,
- at least one vertical partition dividing the tank into a plurality of areas to ensure that water will stay within the tank for a time sufficient for purification, and
- light-shielding means on the upper surface of said tank whereby at least part of said tank is shielded from light to provide a light-shielded area, said light-shielding means being positioned downstream of and adjacent to a water area which is capable of functioning as a sedimentation area.
2 more elements
A floating water purification device consisting essentially of:
- a treatment tank, said treatment tank having an open bottom, vertical side walls enclosing a region, at least one water inlet in a first vertical side wall and at least one water outlet in a second vertical side wall facing said first vertical side wall, wherein fluid can flow through said region in a horizontal direction from said at least one water inlet to said at least one water outlet,
- a float which permits said tank to float in water,
- a plurality of U-shaped biological supports woven on a frame and positioned within said tank,
- at least one vertical partition dividing the tank into a plurality of areas to ensure that water will stay within the tank for a time sufficient for purification, and
- light-shielding means on the upper surface of said tank whereby at least part of said tank is shielded from light to provide a light-shielded area, said light-shielding means being positioned downstream of said at least one water inlet and adjacent to a water area which is capable of functioning as a sedimentation area.
2 more elements
Dependencies are inferred from the claim text.