WO2022207006A2

WO2022207006A2 - Waterscape device capable of removing nitrogen, phosphorus and algae simultaneously and the application thereof

Info

Publication number: WO2022207006A2
Application number: PCT/CN2022/089067
Authority: WO
Inventors: Long Yang
Original assignee: China Urban Construction Design & Research Institute Co., Ltd.
Priority date: 2022-04-07
Filing date: 2022-04-25
Publication date: 2022-10-06
Also published as: CN114620902A; ZA202204649B; WO2022207006A3; CN114620902B

Abstract

The present disclosure provides a waterscape device capable of synchronously removing nitrogen, phosphorus and algae, belonging to the technical filed of environmental protection. The device includes a filtration and aeration mechanism, a supporting and floating mechanism and a landscape mechanism that are arranged in sequence from bottom to top. The filtration and aeration mechanism includes a filter box in which a filtration and aeration ball is arranged. The filtration and aeration ball communicates with the landscape mechanism by a hollow tube and is internally provided with an ultrasonic emission rod. The supporting and floating mechanism is arranged at the top of the filtration and aeration mechanism. The landscape mechanism is arranged at the top of the filter box. The waterscape device is mainly configured to purify a landscape water body without using chemical agents, so as to comprehensively treat the landscape water body without secondary pollution safely and reliably.

Description

WATERSCAPE DEVICE CAPABLE OF REMOVING NITROGEN, PHOSPHORUS AND ALGAE SIMULTANEOUSLY AND THE APPLICATION THEREOF

TECHNICAL FIELD

The present disclosure belongs to the technical field of environmental protection and urban environmental landscape construction, and particularly relates to a waterscape device capable of synchronously removing nitrogen, phosphorus and algae, and a use thereof.

BACKGROUND

Under the influence of human activities or natural processes, a large amount of nutritive salts such as nitrogen (N) and phosphorus (P) are enriched in lakes, rivers and other water bodies, resulting in eutrophication of the water bodies, rapid reproduction of algae and other plankton, reduction of dissolved oxygen in the water bodies, a large number of deaths of fishes and other organisms, severe impact on the quality of water environments, ecosystem health and waterscape effects, even serious water pollution incidents, and serious hidden dangers to the healthy drinking water safety of people. Water pollution has become a difficult problem in the field of environmental protection and urban environmental landscape construction due to wide range, difficult control and easy recurrence.

At present, main methods for controlling water pollution include pollution source input control, bioremediation, coagulation and sedimentation, adsorption, ion exchange adsorption, reverse osmosis technology and physical algae removal, etc. The above methods have different degrees of effectiveness in water purification. Based on the above technical principles, researchers have developed a large number of devices, such as equipment for reducing the eutrophication of the water bodies by using mechanical and physical algae removal, ultrasonic algae removal, adsorption fillers, ecological floating beds or spraying of pharmaceutical preparations.

In addition, main methods for collecting and treating the microbial algae in the water bodies include centrifugal separation, sedimentation, flocculation, filtration and ultrasonic waves. The centrifugal separation technology has the advantages of simple operation and no additives, but has the disadvantages of high energy consumption and high equipment maintenance costs when used on a large scale. For microalgae with smaller cell density, the sedimentation technology is not suitable for harvesting. The flocculation technology includes three flocculation methods of chemical, physical and biological flocculation, but the addition of flocculants will cause water pollution and problems such as biological safety. The mechanical filtration for algae removal generally only takes into account the function of purifying water, without taking into account the landscape effects in the water bodies, and the mechanical equipment mostly uses non-renewable energy as power, which consumes high energy and increases social carbon emissions. The use of the ultrasonic waves may break cell walls and gas cells of biological algae, destroy active enzymes, make them inactivated to die, so as to prevent the algae, but after the death of the algae, the nutritive salts such as the nitrogen and the phosphorus will be released into the water bodies again to provide other microorganisms with nutrients, leading to the recurrence of eutrophication or algal blooms of the water bodies. Therefore, the water pollution may not be comprehensively treated.

SUMMARY

The present disclosure provides a waterscape device capable of synchronously removing nitrogen, phosphorus and algae, and use thereof, which may comprehensively treat source pollution in a water body.

The present disclosure provides a waterscape device capable of synchronously removing nitrogen, phosphorus and algae, including a filtration and aeration mechanism, a supporting and floating mechanism and a landscape mechanism that are arranged in sequence from bottom to top, wherein

the filtration and aeration mechanism includes a filter box in which a filtration and aeration ball is arranged, and the filtration and aeration ball communicates with the landscape mechanism by a hollow tube and is internally provided with an ultrasonic emission rod; one or more water inlets and one or more water outlets are provided on side walls of the filter box; a filler layer filled with fillers is arranged at the bottom in the filter box; a screw propeller is hung on an outer side of the bottom of the filter box;

the supporting and floating mechanism is arranged at the top of the filtration and aeration mechanism and includes a base that is internally provided with a foam body, a vacuum pump, an ultrasonic generator, a storage battery and a controller; one end of the vacuum pump is connected into the filtration and aeration ball by a pipeline and the other end is connected to the landscape mechanism by a pipeline; the ultrasonic generator is connected with the ultrasonic emission rod by electric connection; the controller is connected with the screw propeller, the vacuum pump and the ultrasonic generator respectively by electric connection and is connected with a remote annunciator by electric connection, and the remote annunciator is in signal connection with a remote control arranged outside the base; the storage battery is configured to provide a power source for the vacuum pump, the ultrasonic generator and the screw propeller;

the landscape mechanism is arranged at the top of the filter box and includes a trumpet-shaped solar panel and at least one pistil-shaped nozzle arranged in the center of the trumpet-shaped solar panel; and the pistil-shaped nozzle communicates with the filtration and aeration ball by a hollow tube, and the trumpet-shaped solar panel is connected with the storage battery by an electric wire.

Further, a spherical surface of the filtration and aeration ball is provided with at least one through hole for aeration.

Further, the water inlets with an aperture of 15-50mm are located above the water outlets with an aperture of 2-14mm.

Further, the fillers are composite fillers containing crushed iron ore, oyster shells and biochar.

Further, an upper surface of the base is provided with a solar panel.

Further, the base is detachably arranged on the filter box.

Further, when the vacuum pump pumps water from the water body in the filter box to the air outside the waterscape device, a fountain landscape is formed, and a water body outside the filter box is pumped into the filter box; and when the vacuum pump injects air from the air outside the waterscape device to the water body in the filter box, the aeration is generated at the filtration and aeration ball.

Further, the landscape mechanism further includes leaf-shaped plates, and the leaf-shaped plates are arranged around the trumpet-shaped solar panel.

Further, the top of the pistil-shaped nozzle is provided with a nozzle hole.

The present disclosure further provides a use of the waterscape device according to any one of the above in purification of the landscape water body.

The present disclosure has the following advantages:

The waterscape device capable of synchronously removing the nitrogen, the phosphorus and the algae provided by the present disclosure may be configured to purify the landscape water body, and includes the landscape mechanism, the supporting and floating mechanism and the filtration and aeration mechanism. The mechanisms are inseparable and work together to exert a purifying effect. The landscape mechanism provides the device with a power source required for operation of the device by the trumpet-shaped solar panel, and provides the device with an air source required for aeration by the pistil-shaped nozzles. The filtration and aeration mechanism, in cooperation with the vacuum pump, when the vacuum pump injects the air into the filter box, provides conditions for nitrification and denitrification treatment of nitrogen-containing pollutants through an aeration effect of the filtration and aeration ball, thereby denitrifying the water body and adding dissolved oxygen to the water body; when the vacuum pump pumps the water body from the filter box to the outside of the waterscape device, while the fountain landscape is formed, the water body outside the waterscape device may also enter the filter box through the water inlet/inlets to be filtered and purified; the fillers are capable of removing the phosphorus and the nitrogen in the water body by adsorption and conversion, and provide carriers for microorganisms to strengthen denitrification and phosphorus removal; and the ultrasonic emission rod on the filter box is capable of removing the algae. The supporting and floating mechanism, through the foam body in the base, floats on the water surface, and the base may also bear some components in the purification device.

The present disclosure comprehensively adopts a combined action of suction filtration, aeration, fillers, ultrasonic waves and the like, and does not use chemical agents, thereby comprehensively treating the source pollution in the landscape water body without secondary pollution safely and reliably. In addition, the water purification and the landscape environment construction are organically combined in the waterscape device, which may achieve a good landscape effect while purifying the water body, and plays dual functions of environmental protection and a waterscape.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The exemplary embodiments of the present disclosure and the descriptions thereof are used to explain the present disclosure, and do not constitute an improper limitation to the present disclosure. In the accompanying drawings:

FIG. 1 is a schematic structural diagram of a waterscape device according to an embodiment of the present disclosure.

Drawing symbols are as follows:

11-filter box; 12-filtration and aeration ball; 13-ultrasonic emission rod; 14-water inlet; 15-water outlet; 16-screw propeller;

21-base; 22-storage battery; 23-ultrasonic generator; 24-vacuum pump;

31-trumpet-shaped solar panel; 32-pistil-shaped nozzle; and 33-leaf-shaped plate.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the embodiments of the present disclosure. Apparently, the described embodiments are merely a part, rather than all of the embodiments of the present disclosure. The embodiments in the present disclosure and the features in the embodiments may be combined with each other without conflict.

An embodiment of the present disclosure provides a waterscape device capable of synchronously removing nitrogen, phosphorus and algae, which may remove the nitrogen, the phosphorus and the microalgae in a landscape water body. The waterscape device (which may also be referred to as a purification device hereinafter) includes a filtration and aeration mechanism, a supporting and floating mechanism and a landscape mechanism that are arranged in sequence from bottom to top;

the filtration and aeration mechanism includes a filter box 11, a filtration and aeration ball 12 is arranged in the filter box 11, the filtration and aeration ball 12 communicates with the landscape mechanism by a hollow tube, and an ultrasonic emission rod 13 is arranged in the filtration and aeration ball 12; one or more water inlets 14 and one or more water outlets 15 are provided on side walls of the filter box 11; a filler layer filled with fillers is arranged at the bottom in the filter box 11; a screw propeller 16 is hung on an outer side of the bottom of the filter box 11;

the supporting and floating mechanism is arranged at the top of the filtration and aeration mechanism and includes a base 21, and a foam body, a vacuum pump 24, an ultrasonic generator 23, a storage battery 22 and a controller are arranged in the base 21; one end of the vacuum pump 24 is connected into the filtration and aeration ball 12 by a pipeline, and the other end of the vacuum pump 24 is connected to the landscape mechanism by a pipeline; the ultrasonic generator 23 is connected with the ultrasonic emission rod 13 by an electric wire; the controller is electrically connected with the screw propeller 16, the vacuum pump 24 and the ultrasonic generator 23 respectively and is electrically connected with a remote annunciator, and the remote annunciator is in signal connection with a remote control arranged outside the base 21; the storage battery 22 is configured to provide a power source for the vacuum pump 24, the ultrasonic generator 23 and the screw propeller 16;

the landscape mechanism is arranged at the top of the filter box 11 and includes a trumpet-shaped solar panel 31 and at least one pistil-shaped nozzle 32 arranged in the center of the trumpet-shaped solar panel 31; and the pistil-shaped nozzle 32 communicates with the filtration and aeration ball 12 by a hollow tube, and the trumpet-shaped solar panel 31 is connected with the storage battery 22 by an electric wire.

The filtration and aeration mechanism in the embodiment of the present disclosure, by the filtration and aeration ball, creates an aerobic, anoxic and anaerobic environment through intermittent aeration to promote the nitrification and denitrification of the nitrogen in the water body to achieve the denitrification, as well as to promote the morphological transformation of phosphorus to reduce the concentration of the nitrogen and phosphorus in the water body. The fillers contain iron ions and calcium ions, which may be used to adsorb and convert the nitrogen and phosphorus to form precipitated solids, thereby fundamentally reducing the concentration of the nitrogen and phosphorus in the water body.

Specifically, the filter box 11 is square or cuboid-shaped. The specific shape may be determined according to the needs.

Further, the spherical surface of the filtration and aeration ball 12 is provided with at least one through hole for aeration. The number of the through holes is 1-1000. The specific number may be determined according to the needs. Preferably, the number of the through holes is 80-100. The through hole has a diameter of 0.5-2 mm.

Further, the water inlet/inlets 14 with an aperture of 15-50mm is/are located above the water outlet/outlets 15 with an aperture of 2-14mm. Since the diameter of each of the water inlets is larger than the diameter of each of the algae, the water inlets mainly function to feed the water, but may also prevent other debris other than the microbial algae in the water body from entering the filter box. Since the water outlets are smaller than the water inlets in diameter and are arranged below the water inlets, the water outlets are mainly used to discharge the water body in the filter box to the outside of the filter box.

Further, the fillers are composite fillers containing iron and calcium. Preferably, the fillers contain crushed iron ore, oyster shells and biochar. More preferably, a mass ratio among the crushed iron ore, the oyster shells and the biochar is (5-8) : (2-5) : (1-3) . The volume occupied by the fillers in the filter box is less than 1/2 of the total volume of the filter box.

The composite fillers used in the embodiment of the present disclosure may be used to adsorb and convert free nitrogen and phosphorus substances in the water body and nitrogen and phosphorus substances released by dead algae cells of algal blooms. As the fillers contain iron ions and calcium ions, the fillers may react with the phosphorus to form precipitates, thereby solidifying the phosphorus in the water, fundamentally reducing the concentration of the phosphorus in the water, and achieving comprehensive treatment. Meanwhile, the biochar in the fillers may not only adsorb nitrogen and phosphorus pollutants, but improve the microbial activity and the number of carriers, thereby promoting the effect of nitrogen and phosphorus removal.

The supporting and floating mechanism in the embodiment of the present disclosure includes the base, that is mainly provided with the foam body and other equipment required for operation of the waterscape device, including the vacuum pump, the ultrasonic generator and the storage battery for energy storage, so as to ensure that the waterscape device floats on the water and operates normally.

Specifically, the base may be square or cuboid-shaped. For example, the height, length and width of the base are (0.1-0.3) m* (1-5) m* (1-5) m. The specific shape of the base needs to match with the shape of the filter box.

Specifically, the upper surface of the base 21 is configured to be a solar panel, which mainly functions to collect solar energy. Other sides of the base are made from polyurethane (PUR) , polystyrene (PS) , polyvinyl chloride (PVC) , polyethylene (PE) or phenolic resin (PF) .

Further, the base 21 is detachably arranged on the filter box 11. Specifically, the top of the filter box 11 is configured to be the base 21, and the base 21 is connected with the filter box 11 by a buckle or buckles. The filter box has no cover, which is mainly for the convenience of loading the fillers. When the fillers need to be loaded, the base is directly taken down from the filter box.

In the embodiment of the present disclosure, the foam body in the base 21 is used to float the purification device in the water. After the foam body is placed in the base, the remaining space is used to support the equipment required for other devices to operate.

In the embodiment of the present disclosure, one end of the vacuum pump 24 is directed into the filtration and aeration ball 12 by pipeline, and the other end of the vacuum pump 24 is directed to the landscape mechanism by pipeline. Specifically, the other end of the vacuum pump 24 is directed to the pistil-shaped nozzles 32 of the landscape mechanism by hollow tube, thereby conveniently forming a fountain landscape. The direction of the vacuum pump may be changed as required. When the vacuum pump pumps the water from the water body to air outside the waterscape device, the water body may be pumped into the filter box, so as to form the fountain landscape; and when the vacuum pump injects the air from the air outside the waterscape device to the water body, the aeration is generated at the filtration and aeration ball. Specifically, through automatic control of the working direction of the vacuum pump, when air flow is upward, the water is pumped into the pistil-shaped nozzles of the landscape mechanism to form the fountain landscape, and when the air flow is downward, the air is pumped into the filter box to aerate the water body, thereby adding the dissolved oxygen in the water body, promoting the nitrification and denitrification process and denitrification of the water body, and removing the dead algae debris attached to the filtration and aeration ball.

In the embodiment of the present disclosure, the base 21 is internally provided with the ultrasonic generator 23, which is connected with the ultrasonic emission rod 13 through the electric wire, and is used to drive the ultrasonic emission rod 13 to work. The ultrasonic emission rod may be hung in the filtration and aeration ball. Shock waves generated by a "cavitation" effect produced by applying ultrasonic waves to liquid may be used to break cell walls and gas cells of the algae, destroy active enzymes and make them inactivated to die, so as to prevent and remove the algae.

In the embodiment of the present disclosure, the storage battery 22 in the base 21 is used to store electric energy, one part of the electric energy comes from the trumpet-shaped solar panel, and the other part of the electric energy comes from the solar panel on the upper surface of the base. The electric energy of the storage battery may provide the power source for the vacuum pump, the ultrasonic generator and the screw propeller.

In the embodiment of the present disclosure, the controller in the base 21 is electrically connected to the propeller 16 , the vacuum pump 24 and the ultrasonic generator 23 respectively. The controller may control whether to move, a moving direction, a moving speed, etc. of the screw propeller that moves, so as to control the moving direction, time and speed of the purification device. The controller may also control whether to work and a working direction of the vacuum pump, so as to control intermittent time of the aeration and an inlet or outlet direction of the water flow. The controller may also control working time of the ultrasonic waves. The embodiment of the present disclosure realizes automatic control to the maximum extent, and has green technology, simple operation, convenient maintenance, low operation cost and easy popularization and application. Specifically, the purification device of the present disclosure is placed on the surface of the water body, and the effect of purifying the water body may be controlled by remote control of a position, residence time, filtration and aeration time, ultrasonic working time, etc. of the purification device in the water body. The remote annunciator connected with the controller is also arranged in the base. The remote control is arranged outside the base, which is mainly convenient for an operator to operate.

The landscape mechanism in the embodiment of the present disclosure includes the trumpet-shaped solar panel, the leaf-shaped plates, the pistil-shaped nozzles, etc., which completely combines water purification and ornamental functions. The pistil-shaped nozzles may produce a fountain effect, have elegant appearance, and are placed and floated in the water body, so as to improve the ornamental value of the water body.

Further, the trumpet-shaped solar panel is made of flexible crystalline silicon panels. Preferably, the trumpet-shaped solar panel is made of blue, pink or red flexible crystalline silicon panels. The embodiment of the present disclosure may convert the solar energy into kinetic energy required for the ultrasonic waves, the aeration and the landscape fountain, thereby realizing the utilization of clean energy, reducing carbon emissions and reducing operating costs of the equipment.

Further, the landscape mechanism further includes the leaf-shaped plates 33, and the leaf-shaped plates 33 are arranged around the trumpet-shaped solar panel 31. The leaf-shaped plates are made from one of the polyurethane (PUR) , the polystyrene (PS) , the polyvinyl chloride (PVC) , the polyethylene (PE) and the phenolic resin (PF) .

Further, the top of the pistil-shaped nozzle 32 is provided with a nozzle hole. The tube between the pistil-shaped nozzle and the filtration and aeration ball is hollow tube. The other end of the vacuum pump 24 is also directed to the pistil-shaped nozzle 32 of the landscape mechanism by the hollow tube. The number of the pistil-shaped nozzles 32 is 3-50. Preferably, the number of the pistil-shaped nozzles 32 is 5-10.

A specific implementation process of the waterscape device provided by the present disclosure includes the following steps:

(1) The purification device is irradiated under the sunlight, and the trumpet-shaped solar panel 31 and the solar panel at the top of the base 21 absorb the sunlight, so that the storage battery 22 is charged to provide the power source for the vacuum pump 24, the ultrasonic generator 23, the controller and the screw propeller 16. The filter box 11 is opened, and the fillers are placed in the filter box 11.

(2) The purification device is placed in the landscape water body to be treated, the remote control controls the ultrasonic generator 23 to be turned on by the controller, and controls the working time and working direction of the vacuum pump 24 by the controller. For example, the vacuum pump 21 is started, when the vacuum pump 24 pumps the water from the water body inside the box11 to the air outside the waterscape device, as the water in the filter box 11 is reduced, the water body outside the filter box 11 is pumped into the filter box 11, that is, the water containing the algae pollutants, the nitrogen and phosphorus and other pollutants is continuously pumped into the filter box 11 through the water inlet/inlets 14, so as to filter the algae; and the fountain landscape may also be formed when the water body is pumped out. The working direction of the vacuum pump 21 is changed, and the air is injected into the filter box 11, so as to increase the amount of the dissolved oxygen in the filter box 11. The filtration and aeration ball 12 creates the aerobic, anoxic and anaerobic environment by the intermittent aeration, so as to promote the nitrification and denitrification of the nitrogen in the water body and fundamentally reduce the concentration of the nitrogen in the water body. The composite fillers containing the iron and the calcium are mainly used to react with the phosphorus-containing pollutants to form the precipitates, so as to remove the phosphorus in the water body. The ultrasonic emission rod 13 may treat the algae, so as to remove the algae.

(3) After the purification device has been working for a period of time, the remote control may control the purification device by the controller to move, so as to purify and landscape the water body at different positions.

The above is merely the more preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

A waterscape device capable of synchronously removing nitrogen, phosphorus and algae, wherein, comprising a filtration and aeration mechanism, a supporting and floating mechanism and a landscape mechanism that are arranged in sequence from bottom to top;

the filtration and aeration mechanism comprises a filter box (11) , a filtration and aeration ball (12) is arranged in the filter box (11) and communicates with the landscape mechanism by a hollow tube, and an ultrasonic emission rod (13) is arranged in the filtration and aeration ball (12) ; one or more water inlets (14) and one or more water outlets (15) are provided on side walls of the filter box (11) ; fillers are arranged at the bottom in the filter box (11) ; a screw propeller (16) is hung on an outer side of the bottom of the filter box (11) ;

the supporting and floating mechanism is arranged at the top of the filtration and aeration mechanism and comprises a base (21) , and a foam body, a vacuum pump (24) , an ultrasonic generator (23) , a storage battery (22) and a controller are arranged in the base (21) ; one end of the vacuum pump (24) is connected to the filtration and aeration ball (12) by a pipeline, and the other end of the vacuum pump (24) is connected to the landscape mechanism by a pipeline; the ultrasonic generator (23) is electrically connected with the ultrasonic emission rod (13) ; the controller is electrically connected with the screw propeller (16) , the vacuum pump (24) and the ultrasonic generator (23) respectively and is electrically connected with a remote annunciator being in signal connection with a remote control arranged outside the base (21) ; the storage battery (22) is configured to provide a power source for the vacuum pump (24) , the ultrasonic generator (23) and the screw propeller (16) ;

the landscape mechanism is arranged at the top of the filter box (11) and comprises a trumpet-shaped solar panel (31) and at least one pistil-shaped nozzle (32) arranged in the center of the trumpet-shaped solar panel (31) ; and the pistil-shaped nozzle (32) communicates with the filtration and aeration ball (12) by a hollow tube, and the trumpet-shaped solar panel (31) is connected with the storage battery (22) by an electric wire.
The waterscape device according to claim 1, wherein,

a spherical surface of the filtration and aeration ball (12) is provided with at least one through hole for aeration.
The waterscape device according to claim 1, wherein,

the water inlets (14) with an aperture of 15-50mm are located above the water outlets (15) with an aperture of 2-14mm.
The waterscape device according to claim 1, wherein,

the fillers are composite fillers containing crushed iron ore, oyster shells and biochar.
The waterscape device according to claim 1, wherein,

an upper surface of the base (21) is configured to be a solar panel.
The waterscape device according to claim 1, wherein,

the base (21) is detachably arranged on the filter box (11) .
The waterscape device according to claim 1, wherein,

when the vacuum pump (24) pumps water from the water body in the filter box (11) to the air outside the waterscape device, a fountain landscape is formed, and a water body outside the filter box (11) is pumped into the filter box (11) ; and when the vacuum pump (24) injects air from the air outside the waterscape device to the water body in the filter box (11) , the aeration is generated at the filtration and aeration ball (12) .
The waterscape device according to claim 1, wherein,

the landscape mechanism further comprises leaf-shaped plates (33) arranged around the trumpet-shaped solar panel (31) .
The waterscape device according to claim 1, wherein,

the top of the pistil-shaped nozzle (32) is provided with a nozzle hole.
Use of the waterscape device according to any one of claims 1-9 in water body purification.