Abstract

There is described herein a separation unit (35) for a protein skimmer (2), the separation unit comprising: an inlet (37) through which water and foam can pass into the unit, a first outlet (15) for purified water, and a second outlet (41) for foam; a tray (73) across which water can flow between the inlet and the first outlet (15); and a plate (69) positioned above the tray such that a leading edge of the plate sits at or below a level of the water surface in use, the plate being inclined at an acute angle to the direction of water flow across the tray so that foam floating on the surface of the water can be separated from the water surface and directed up the inclined plate to the second outlet. There is also described herein a filtration system for a fish tank comprising a protein skimmer and a method for providing a separation unit for a protein skimmer.

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
• C02F 1/24 - Treatment of water, waste water, or sewage by flotation

Abstract

There is described herein a separation unit (35) for a protein skimmer (2), the separation unit comprising: an inlet (37) through which water and foam can pass into the unit, a first outlet (15) for purified water, and a second outlet (41) for foam; a tray (73) across which water can flow between the inlet and the first outlet (15); and a plate (69) positioned above the tray such that a leading edge of the plate sits at or below a level of the water surface in use, the plate being inclined at an acute angle to the direction of water flow across the tray so that foam floating on the surface of the water can be separated from the water surface and directed up the inclined plate to the second outlet. There is also described herein a filtration system for a fish tank comprising a protein skimmer and a method for providing a separation unit for a protein skimmer.

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
• C02F 1/24 - Treatment of water, waste water, or sewage by flotation

Abstract

15 Abstract Device for distribution of a liquid to a volume of water, wherein the device comprises a wall surrounding an inner chamber, and separating the chamber from the outer environment of the device. An inlet to the inner chamber is arranged in the wall, and a number of outlets from the inner chamber is arranged in the wall, wherein the outlets are distributed on an outer surface of the device. The device further comprises a ballast increasing the total weight of the device under water, to more than 10 kg. Date Recue/Date Received 2021-06-22

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish

Abstract

A system and a method for treating and recycling process water has a cylindrical sedimentation tank and a cylindrical tank for flotation and storage downstream of the sedimentation tank. Water is added to an inlet at the upper part of the sedimentation tank, and treated water is removed from an outlet at the lower part of the flotation tank for recycling. A screw in the sedimentation tank has a major diameter similar the sedimentation tank, which forces water to flow rotationally from the top towards the bottom of the sedimentation tank. A riser between the sedimentation tank and the flotation tank with one end in a lower part of the sedimentation tank, and the other end at an upper part of the flotation tank. A cleaning loop with ozone added is between the tanks, removing water from the flotation tank and returning it to the sedimentation tank.

IPC Classes  ?

• C02F 9/00 - Multistage treatment of water, waste water or sewage
• B01D 21/00 - Separation of suspended solid particles from liquids by sedimentation
• B01D 21/26 - Separation of sediment aided by centrifugal force
• B03D 1/24 - Flotation machines pneumatic
• C02F 1/24 - Treatment of water, waste water, or sewage by flotation
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 103/44 - Nature of the water, waste water, sewage or sludge to be treated from vehicle washing facilities

Abstract

The invention relates to a system and a method for treating and recycling process water. The system is comprising a cylindrical sedimentation tank 1 and a cylindrical tank 3 for flotation and storage downstream of the sedimentation tank 1 wherein water to be treated is added to an inlet 6 at the upper part of the sedimentation tank 1, and treated water to be recycled is removed from an outlet 13 at the lower part of the flotation tank 3. The sedimentation tank 1 comprises a screw 2 having a major diameter similar to the inner diameter of the sedimentation tank, which forces the water to flow rotationally from the top towards the bottom of the sedimentation tank. Further, a riser 7 is arranged between the sedimentation tank 1and the flotation tank 3. One end of the riser is in a lower part of the sedimentation tank, and the other end is at an upper part of the flotation tank. A cleaning loop is arranged between the tanks, removing water from the flotation tank 3 and returning it to the sedimentation tank 1, wherein ozone is added to the loop.

IPC Classes  ?

• C02F 1/24 - Treatment of water, waste water, or sewage by flotation
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
• B01D 21/26 - Separation of sediment aided by centrifugal force
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 103/44 - Nature of the water, waste water, sewage or sludge to be treated from vehicle washing facilities

Abstract

The present invention relates to a method and a device for disinfection of the outside of a vessel's hull whilst partly or completely submerged in water. According to the present invention this is achieved by creating a layer, confined by a sheet, containing a disinfection agent as gas or a liquid or a mixture of both, that covers the whole or parts of the vessel's hull that is submerged in water.

IPC Classes  ?

• B63B 59/04 - Preventing hull fouling