Systems and apparatus for removal of harmful algae blooms (HAB) and transparent exopolymer particles (TEP)

Patent metadata

Field	Value
Publication number	US-9624116-B2
Application number	US-201313740752-A
Country	US
Kind code	B2
Filing date	Jan 14, 2013
Priority date	Jan 14, 2013
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A mobile HEB and TEP mitigation device includes a mobile body capable of movement within or upon a body of water. Located within the mobile body is a hydrodynamic separation system which includes a water inlet, a hydrodynamic separation unit and a collection tank. The hydrodynamic separation unit includes two outputs, one for a clean stream output line containing clean water and arranged to re-circulate the clean water, and another for a concentrate stream output line, the concentrate stream output line configured to place concentrated water containing potentially harmful bio-organic materials into the collection tank. Also included on the mobile body is a power source and an engine/steering unit, wherein the steering portion of the engine/steering unit provides a capacity to move the mobile body in an intended direction. The mitigation device may also be used as an embedded part of an on-shore arrangement.

First claim

What is claimed is:

1. A harmful algae bloom (HAB) and/or transparent exopolymer particle (TEP) mitigation device comprising:
a mobile body which moves within or upon a body of water;
a hydrodynamic separation system located on the mobile body, wherein the hydrodynamic separation system includes a source water inlet for inputting water from the body of water within or upon which the mobile body is located, a hydrodynamic separation unit arranged to receive the water from the source water inlet, and a collection tank, wherein the hydrodynamic separation unit includes bi-furcated outputs, a first output being a clean stream output line containing clean water and arranged to re-circulate the clean water back into the body of water, and a second output being a concentrate stream output line, the concentrate stream output line configured to place concentrate water containing harmful bio-organics found in at least one of HAB and TEP infested waters into the collection tank;
the hydrodynamic separation system further including a plurality of curved hydrodynamic separation units which span approximately between 180 degrees and 360 degrees in a stacked configuration and an inlet of a first hydrodynamic separation unit is operatively connected to the source water inlet;
a HAB and/or TEP sensor configured to detect the presence or absence of HAB and/or TEP infested waters;
a source water inlet door or cover configured to cover and uncover the source water inlet, and positioned in relationship to the source water inlet wherein when the door or cover is positioned to cover the source water inlet, water is stopped from entering the system and from being processed and from being provided to the collection tank;
a source water inlet door or cover controller configured to receive a signal from the HAB and/or TEP sensor, wherein the source water inlet door or cover controller acts to close the source water inlet door or cover over the source water inlet when the HAB and/or TEP sensor senses the absence of HAB and/or TEP infested waters and the source water inlet door or cover controller acts to open the source water inlet door or cover when the HAB and/or TEP sensor senses the presence of HAB and/or TEP infested waters;
a power source located on the mobile body; and
an engine/steering unit, the engine/steering unit in operative connection to the power source to receive power to motivate movement of the mobile body, and wherein the steering portion of the engine/steering unit provides a capacity to move the mobile body in an intended direction.

2. The mitigation device of claim 1 further including a navigation unit to control movement of the mitigation device.

3. The mitigation device of claim 1 wherein the sensor is an optical sensor.

4. The mitigation device of claim 1 wherein the power source includes at least one of a fuel, a battery, a solar based power supply, a wind turbine.

5. The mitigation device of claim 1 further including a second collection tank in operative connection with the collection tank, wherein the bio-organics are concentrated in the collection tank and then the concentrated bio-organics are provided to the second collection tank.

6. The mitigation device of claim 1 , the mitigation device further configured with waterproofing wherein the mobile device is configured to operate submerged below the surface of the water.

7. The mitigation device of claim 1 wherein at least a portion of the mitigation device is above the surface of the water.

8. The mitigation device of claim 1 further including a flocculent dosing system which is implemented between the inlet and the hydrodynamic separation unit and wherein the hydrodynamic separation unit is configured to operate with approximately a 94% efficiency for algae having a diameter of greater than 6 μm.

9. The mitigation device of claim 1 further including a filter arrangement located between the inlet and the hydrodynamic separation unit.

10. The mitigation device of claim 1 wherein the inlet is configured to produce an average shear rate in the range of 100/s to 5000/s.

11. The mitigation device of claim 1 further including the hydrodynamic separation unit configured to remove the bio-organic material in a non-ruptured state.

12. A harmful algae bloom (HAB) and/or transparent exopolymer particle (TEP) mitigation device comprising:
a mobile body configured to move within or upon a body of water;
a hydrodynamic separation system located on the mobile body, wherein the hydrodynamic separation system includes a water inlet for inputting water from the body of water within or upon which the mobile body is located, a hydrodynamic separation unit arranged to receive the water from the water inlet, and a collection tank, wherein the hydrodynamic separation unit includes bi-furcated outputs, a first output being a clean stream output line containing clean water and arranged to re-circulate the clean water back into the body of water, and a second output being a concentrate stream output line, the concentrate stream output line configured to place concentrate water containing harmful bio-organics found in at least one of HAB and TEP infested waters into the collection tank;
a HAB and/or TEP sensor configured to detect the presence or absence of HAB and/or TEP infested waters;
a source water inlet door or cover configured to cover and uncover the source water inlet, and positioned in relationship to the source water inlet wherein when the door or cover is positioned to cover the source water inlet, water is stopped from entering the system and from being processed and from being provided to the collection tank;
a source water inlet door or cover controller configured to receive a signal from the HAB and/or TEP sensor, wherein the source water inlet door or cover controller acts to close the source water inlet door or cover over the source water inlet when the HAB and/or TEP sensor senses the absence of HAB and/or TEP infested waters and the source water inlet door or cover controller acts to open the source water inlet door or cover when the HAB and/or TEP sensor senses the presence of HAB and/or TEP infested waters:
a power source located on the mobile body;
an engine/steering unit, the engine/steering unit in operative connection to the power source to receive power to motivate movement of the mobile body, and wherein the steering portion of the engine/steering unit provides a capacity to move the mobile body in an intended direction; and
a disinfection module to disinfect the bio-organic material.

13. A system for the removal of bio-organic material from a source of raw seawater and freshwater, the system comprising:
at least one inlet for receiving at least one of raw seawater and freshwater;
a membrane-less hydrodynamic separator unit arrangement including at least one separator unit for removing bio-organic material from the at least one of raw seawater and freshwater, the hydrodynamic separator unit having a curved configuration leading to a bifurcated outlet operative for passing treated seawater and/or freshwater via one outlet and for containment of concentrate fluid via another outlet;
a pump mechanism for passing the treated seawater and/or freshwater from the membrane-less hydrodynamic separator unit; and
a HAB and/or TEP sensor configured to detect the presence or absence of HAB and/or TEP infested waters;
a source water inlet door or cover configured to cover and uncover the source water inlet, and positioned in relationship to the source water inlet wherein when the door or cover is positioned to cover the source water inlet, water is stopped from entering the system and from being pro

Assignees

• Palo Alto Res Ct Inc

Inventors

• Volkel Armin R
• Lean Meng H
• Chang Norine E
• Hsieh Huangpin B

Classifications

• C02F2201/009

  Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells · CPC title

• C02F2303/24

  Separation of coarse particles, e.g. by using sieves or screens · CPC title

• C02F1/52

  by flocculation or precipitation of suspended impurities {(C02F1/463 takes precedence)} · CPC title

• B01D21/265

  by using a vortex inducer or vortex guide, e.g. coil (B01D21/0054 takes precedence) · CPC title

• B63C9/28

  Adaptations of vessel parts or furnishings to life-saving purposes · CPC title