A water treatment method

Abstract

A water treatment method involves installing bivalves inside a vessel using an aquaculture plate. The bivalves purify the waterway in which the vessel travels. The installation area of ​​the bivalves inside the vessel is no less than 10 square meters, the number of bivalves is no less than 2100, and the daily water treatment capacity is no less than 100 tons. The vessel includes a bow and a stern connected by a buoyancy tank plate. The bow has two first buoyancy tanks, which are connected to two second buoyancy tanks at the stern via connecting plates to form the hull. The buoyancy tanks contain watertight compartments for adjusting the overall draft of the hull. An aquaculture plate containing bivalves is located in the middle of the hull. A propeller is installed at the stern, and the aquaculture plate and bivalves are positioned within the flow channel for the vessel's movement. This water treatment method, with a propeller at the stern, utilizes the purification capabilities of bivalves through the aquaculture plate to create a mobile purification system for waterways or lakes.

Description

Technical Field

[0001] This invention belongs to the field of water treatment technology, and specifically relates to a water treatment method. Background Technology

[0002] Eutrophication of lakes and rivers refers to water pollution caused by excessive levels of plant nutrients such as nitrogen and phosphorus. When excessive nutrients enter slow-flowing water bodies such as lakes, reservoirs, estuaries, and bays, aquatic organisms, especially algae, will proliferate, causing a sharp drop in dissolved oxygen levels and affecting the survival of fish and other aquatic life. Under natural conditions, the evolution of lakes from oligotrophic to nutrient-rich lakes, then to swamps, and finally to land is extremely slow. Human activities, by discharging large amounts of industrial wastewater, domestic sewage, and plant nutrients from agricultural runoff into lakes and other water bodies, greatly accelerate the eutrophication process. After eutrophication, the proliferation of plankton often results in water bodies appearing blue, red, brown, or milky white. This phenomenon is called algal bloom in rivers and lakes, and red tide in the ocean. Eutrophication affects water quality, reducing water transparency and making it difficult for sunlight to penetrate the water layer, thus affecting the photosynthesis of aquatic plants and potentially causing supersaturation of dissolved oxygen. Both supersaturation and low dissolved oxygen levels are harmful to aquatic animals, causing mass fish deaths. Meanwhile, due to eutrophication, a large amount of algae, dominated by cyanobacteria and green algae, grows on the surface of the water, forming a layer of "green scum." This causes harmful gases produced by the anaerobic decomposition of organic matter at the bottom, as well as biotoxins from some plankton, to harm fish. Because eutrophic water contains nitrates and nitrites, long-term consumption of water with levels exceeding certain standards by humans and animals can also lead to poisoning and illness. After the formation of "green scum," underwater algae cannot receive sunlight and therefore cannot photosynthesize, leading to a gradual decrease in oxygen levels and the death of aquatic organisms. The dead algae and organisms then undergo oxidation in the water, causing the water to become very smelly and rendering the water resources unusable. Eutrophication standards for water bodies: 1) Nitrogen content greater than 0.2-0.3 mg / L, phosphorus content greater than 0.01 mg / L; 2) Biochemical oxygen demand greater than 10 mg / L; 3) Total bacterial count in freshwater reaches 10⁴ CFU / mL; 4) Chlorophyll a concentration, a marker of algal growth, greater than 10 μg / L. Several methods to address eutrophication include: 1) Completely eliminating the discharge of large amounts of industrial wastewater, domestic sewage, and plant nutrients from agricultural runoff into lakes, rivers, and other water bodies. 2) Absorbing and purifying nitrogen, phosphorus, and other planktonic protozoa in the water. 3) Algae absorbing nitrogen and phosphorus, which are then used as feed by other animals. 4) Eliminating eutrophication through chemical substances or biological agents. Of these methods, the first one, with government-issued regulations, has shown significant effects; however, eliminating eutrophic water bodies and reversing water quality through natural degradation is a very long process. The second method is effective for small bodies of water, but requires significant financial investment and advanced technology for large bodies, making it difficult to implement. The third method can be achieved with suitable aquatic species, does not cause secondary pollution, and is low-cost and effective. The fourth method can cause secondary pollution and is technically difficult to master.

[0003] Algae absorb nitrogen and phosphorus, which are then consumed by other animals as food. The main problem with this water treatment method is that the animals feeding on algae and plankton are difficult to control, often disrupting the food chain and causing mortality.

[0004] Regarding the aforementioned existing technical problems, those skilled in the art are researching how to achieve a long-term, economically valuable water treatment solution for large-area watersheds and lakes. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a water treatment method that allows for controllable biomass, mobile large-scale treatment, and no secondary pollution.

[0006] To achieve the above objectives, the water treatment method of this invention involves installing bivalve mollusks inside a vessel using an aquaculture plate. The bivalve mollusks purify the waterway in which the vessel travels. The installation area of ​​the bivalve mollusks inside the vessel is no less than 10 square meters, the number of bivalve mollusks is no less than 2100, and the daily water treatment capacity is no less than 100 tons. The vessel includes a bow and a stern connected by a hull plate. The bow has two first buoyancy chambers, which are connected to two second buoyancy chambers at the stern via their respective hull plates, forming the hull. An aquaculture plate is located in the middle of the hull, and the bivalve mollusks are installed on the aquaculture plate. A propeller is installed at the stern. The aquaculture plate and the bivalve mollusks are located within the flow channel in which the vessel travels. This invention uses bivalve mollusks as the aquatic species for water treatment. In freshwater lakes and rivers, adult freshwater bivalve mollusks are used. Utilizing their habits and ability to filter 60-80 liters of water per 24 hours, they are employed to filter eutrophic water. The filtered water quality is above Class II water standards. Algae, plankton, and suspended matter smaller than 30 μm in diameter serve as food for the bivalve mollusks. Feeding on algae effectively reduces nitrogen and phosphorus levels; feeding on plankton and suspended matter smaller than 30 μm effectively reduces turbidity. Filtration by these bivalve mollusks is equivalent to N bivalve mollusks producing 50-80 liters of Class II water daily, diluting the eutrophic water in lakes and rivers, without causing secondary water pollution. For example, a vessel with a total width of 5.2 meters and a length of 15 meters, equipped with bivalve mollusks arranged in a 4*10 meter configuration (40 square meters), carrying 9070 bivalve mollusks, can process 453 tons of water per day, or 165,000 tons per year. To avoid ecological imbalance in a fixed small body of water, propellers are used to change the position of the water treatment method, achieving dynamic water treatment capacity and creating a balanced water treatment effect. The bivalve mollusks mentioned are *Hylocereus delavayi*, to enhance the economic value of the water treatment process.

[0007] The first buoyancy chamber comprises an upper and lower structured first airtight chamber and a first watertight chamber. The front ends of both the first watertight chamber and the first airtight chamber are conical to reduce the forward resistance of the water treatment method. The upper and lower structured first airtight chamber and first watertight chamber enhance the buoyancy of the first buoyancy chamber and improve the operational safety of the water treatment method.

[0008] A forward deck is installed between the two first buoyancy tanks. A first mast is mounted on the forward deck or one of the first buoyancy tanks. A camera is mounted on the first mast, and the camera's circuitry is connected to a control box located at the stern. The camera acquires image information about the surrounding area of ​​the water treatment method, and the control system within the control box enables the water treatment method to operate unmanned. A surface debris collection device is installed beneath the forward deck between the two first buoyancy tanks. This device includes a filter screen inclined between the two first buoyancy tanks. The filter screen is driven to rotate via a motor connected to a shaft, cooperating with the debris collection plate to collect floating debris from the water surface.

[0009] To further improve the safety and intelligence of the water treatment method, the hull is equipped with one or more of the following: warning lights, sonar, horn, radar, and dual satellite receiving antennas, enabling intelligent control of the water treatment method. The hull is a buoyancy plate, with a passageway installed on top. In addition to providing buoyancy, the passageway allows personnel to board and inspect the vessel.

[0010] The two second buoyancy chambers are connected by a battery chamber and a control chamber. The battery chamber is connected to a solar panel to provide power for the water treatment method.

[0011] The second buoyancy chamber includes an upper and lower structure, namely an airtight chamber and a watertight chamber. The upper and lower structure of the airtight chamber and the watertight chamber improves the buoyancy of the second buoyancy chamber and the safety of the water treatment method.

[0012] The aforementioned aquaculture plate and the underside of the bivalve shellfish are equipped with an excrement collection plate. The tail end of the excrement collection plate is connected to an excrement collection pump via a pipe to collect the excrement. The excrement collection plate is used to collect the excrement of the bivalve shellfish, preventing secondary pollution of the water body.

[0013] The stern is equipped with a second mast connected to an anemometer, which is used in conjunction with the control system in the control box to control the ship's speed.

[0014] The water treatment method of this invention uses a propeller installed at the stern of a boat, in conjunction with an aquaculture plate incorporating bivalve mollusks. By utilizing the water purification capabilities of bivalve mollusks, a mobile purification system is created for watersheds or lakes. This method not only has a large purification capacity per unit boat but also a wide impact range, without causing secondary pollution. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the ship in a water treatment method according to the present invention;

[0017] Figure 2 This is a schematic diagram of the bow structure in this invention;

[0018] Figure 3 This is a schematic diagram of the stern structure in this invention;

[0019] Figure 4 This is a schematic diagram of the bivalve shellfish structure installed on the aquaculture plate in this invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0021] like Figure 1-4 As shown, a water treatment method involves installing bivalve mollusks inside a boat via an aquaculture plate. The bivalve mollusks purify the waters in which the boat moves. The installation area of ​​the bivalve mollusks inside the boat is no less than 10 square meters, the number of bivalve mollusks is no less than 2100, and the water treatment volume is no less than 100 tons per day. The boat includes a bow and a stern, which are connected by a boat plate 2. The bow has two first buoyancy chambers, which are connected to two second buoyancy chambers at the stern via their respective boat plates to form the hull. An aquaculture plate 10 is located in the middle of the hull, and bivalve mollusks 22 are installed on the aquaculture plate 10. A propeller 3 is installed at the stern. The aquaculture plate and the bivalve mollusks are located in the flow channel in which the hull moves.

[0022] The preferred structural design includes a first airtight chamber 14 and a first watertight chamber 15, both with conical front ends. The second buoyancy chamber includes a second airtight chamber 5 and a second watertight chamber 4, both with upper and lower structures. The hull plate 2 serves as a buoyancy plate, with a passageway plate 1 installed on top. The first and second buoyancy chambers, located at the bow and stern, together form two first buoyancy chambers and two second buoyancy chambers. Combined with the buoyancy plate, the two sides serve as buoyancy chambers, while the middle area serves as a culture platform and a bivalve area for water purification. Simultaneously, the culture of bivalve mollusks generates economic value, particularly the culture of the triangular sail mussel, which is even more valuable.

[0023] To further enhance the intelligent control capabilities of the water treatment method, the hull is equipped with one or more of the following: warning lights 11, sonar 16, horn 9, radar 17, and dual satellite receiving antennas 18. A second mast 7 connected to an anemometer 8 is installed at the stern. A forward deck 31 is installed between the two first buoyancy tanks. A first mast 13 is installed on the forward deck 31 or one of the buoyancy tanks. A camera is installed on the first mast 13, and the camera's circuitry is connected to a control box 20 located at the stern. The control box 20, through its internal control system, obtains the hull's position and speed based on information provided by the sonar 16, radar 17, anemometer 8, and camera 12, achieving intelligent control performance.

[0024] To improve the water surface purification capacity, a floating debris collection device is installed under the front panel between the two first buoyancy chambers. The floating debris collection device includes a filter screen plate 35 that is inclined between the two first buoyancy chambers. The filter screen plate is driven by a motor through a rotating shaft to rotate and cooperate with the floating debris collection plate to collect floating debris on the water surface.

[0025] To achieve long-term endurance for the water treatment method, a battery compartment 21 and a control compartment 20 are connected between the two second buoyancy compartments. The battery compartment is connected to a solar panel 6, which provides power to the propulsion unit 3 of the water treatment method.

[0026] To avoid secondary pollution, the aquaculture plate 10 and the bivalve shellfish 22 are provided with an excrement collection plate 19. The tail of the excrement collection plate 19 is connected to an excrement collection pump through a pipe to collect the excrement.

[0027] As a specific embodiment, the following is a comparison table of water quality before and after treatment using the method of the present invention:

[0028]

[0029] The total water volume in the table above is calculated based on a water surface area of ​​one square kilometer and an average water depth of 2 meters: the installation area for bivalve mollusks inside each water treatment vessel is 40 square meters.

[0030] The number of treatment vessels will be determined based on the existing eutrophication status of the lake, the treatment period, and the required water quality after treatment. Once the water quality reaches Class III or higher standards, the number of treatment vessels can be reduced according to the amount of wastewater discharged, maintaining the water quality at Class II or III standards and creating a clear water and blue sky environment.

[0031] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water treatment method, wherein bivalve mollusks are installed inside a ship via an aquaculture plate, the bivalve mollusks purify the waters in which the ship moves, the installation area of ​​the bivalve mollusks inside the ship is not less than 10 square meters, the number of bivalve mollusks is not less than 2100, and the water treatment volume is not less than 100 tons per day, the ship includes a bow and a stern, the bow and the stern are connected by a ship plate (2), the bow is provided with two first buoyancy chambers, the two first buoyancy chambers are connected to two second buoyancy chambers at the stern by their respective connecting ship plates to form the hull, the buoyancy chambers have watertight chambers inside for adjusting the draft of the entire hull, an aquaculture plate (10) is provided in the middle of the hull, the aquaculture plate (10) is installed with bivalve mollusks (22); the stern is equipped with a propeller (3), the aquaculture plate and the bivalve mollusks are located in the flow channel in which the hull moves; the first buoyancy chambers include The first airtight chamber (14) and the first watertight chamber (15) are of upper and lower structure, and the front ends of the first watertight chamber (15) and the first airtight chamber (14) are both conical; a front chamber plate (31) is installed between the two first buoyancy chambers, and a first mast (13) is installed on the front chamber plate (31) or the first buoyancy chamber. A floating object collection device is installed under the front chamber plate (31), and a camera (12) is installed on the first mast (13). The camera circuit is connected to the control box (20) located at the stern. The floating object collection device includes a filter screen plate (35) that is inclined between the two first buoyancy chambers. The filter screen plate (35) is connected to a motor through a rotating shaft to drive the rotation and cooperate with the floating object collection plate; the second buoyancy chamber includes a second airtight chamber (5) and a second watertight chamber (4) of upper and lower structure; the bivalve mollusks are triangular sail mussels.

2. The water treatment method according to claim 1, characterized in that: The hull is equipped with one or more of the following: warning lights (11), sonar (16), horn (9), radar (17) and dual satellite receiving antennas (18).

3. The water treatment method according to claim 1, characterized in that: The ship plate (2) is a buoyancy plate, and a passageway plate (1) is installed on the top of the buoyancy plate.

4. The water treatment method according to claim 1, characterized in that: The two second buoyancy chambers are connected by a battery compartment (21) and a control compartment (20), and the battery compartment is connected to a solar panel (6).

5. The water treatment method according to claim 1, characterized in that: The aquaculture plate (10) and the bivalve shellfish (22) are provided with an excrement collection plate (19) on the lower side. The tail of the excrement collection plate (19) is connected to an excrement collection pump through a pipe to collect the excrement.

6. The water treatment method according to claim 1, characterized in that: The stern of the ship is equipped with a second mast (7) connected to an anemometer (8).

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