CN210085193U

CN210085193U - Multi-functional landscape water's improvement device

Info

Publication number: CN210085193U
Application number: CN201920084344.3U
Authority: CN
Inventors: 李剑; 林松; 王在谦
Original assignee: Guizhou Water Operation Co Ltd
Current assignee: Guizhou Water Operation Co Ltd
Priority date: 2019-01-21
Filing date: 2019-01-21
Publication date: 2020-02-18
Anticipated expiration: 2029-01-21

Abstract

The utility model discloses a treatment device of multi-functional landscape water body, including cell body, air supporting device, aeration biofiltration device, dross removal mechanism and adjustable fender, the cell body is equipped with air supporting functional area and aeration biofiltration district, the air supporting device is installed in the air supporting functional area, dross removal mechanism installs in the upper end in air supporting functional area, aeration biofiltration device installs in aeration biofiltration district, be equipped with water channel between the bottom in air supporting functional area and the bottom in aeration biofiltration district, adjustable fender sets up in water channel, adjustable fender can block or adjust the liquid flow between air supporting functional area and the aeration biofiltration district. The device has the advantages of low investment cost, short treatment period, simple operation, no secondary pollution, good effluent quality and the like.

Description

Multi-functional landscape water's improvement device

Technical Field

The utility model relates to a water treatment facilities, in particular to multi-functional landscape water's improvement device.

Background

The treatment of landscape water can be generally divided into physical, chemical, biological and ecological restoration methods. The treatment process of landscape water body pollution is successively developed from simple coagulating sedimentation and circulating filtration to the establishment of a perfect landscape water body ecological system and the improvement of the self-cleaning capacity of the water body to solve the pollution and the like. At present, the research and application are mostly physicochemical strengthening treatment and biological and natural ecological restoration methods. But the physicochemical strengthening treatment can bring secondary pollution to the water body, and the quality guarantee time of the water quality is short; the natural ecological restoration method has the defects of long restoration period, high later maintenance cost and the like. In addition, although the existing biological aerated filter has the advantages of strong impact load resistance, small occupied area, short treatment period, wide application range and the like, a plurality of problems still exist in the actual use process: 1) suspended matters in the sewage are trapped in the filter material layer, which easily causes the filter chamber to be blocked. 2) When aeration oxygenation is used, the resistance of the filter material can cause that sewage and oxygen can not be fully contacted, and oxygen supply is often insufficient. 3) The gas-water combined backwashing is frequent, the frequent washing not only damages the activity of the microbial membrane on the filter material, but also shortens the service life of the filter material and the filter tank, and increases the consumption of the backwashing water.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a landscape water body treatment device that investment cost is low, processing cycle is short, the operation is simple, no secondary pollution, effluent quality of water is good.

According to the utility model discloses an aspect provides a treatment device of multi-functional landscape water body, including cell body, air supporting device, aeration biofiltration device, dross removal mechanism and adjustable fender, the cell body is equipped with air supporting functional area and aeration biofiltration district, the air supporting device is installed in the air supporting functional area, dross removal mechanism installs in the upper end in air supporting functional area, aeration biofiltration device installs in aeration biofiltration district, be equipped with water channel between the bottom in air supporting functional area and the bottom in aeration biofiltration district, adjustable fender sets up in water channel, adjustable fender can block or adjust the liquid flow between air supporting functional area and the aeration biofiltration district.

In some embodiments, the air floating device includes a nanometer micro-bubble generating device and a nanometer micro-bubble air distributing device, the nanometer micro-bubble air distributing device is installed in the air floating functional area and located at the lower part of the air floating functional area, and the nanometer micro-bubble generating device is connected with the nanometer micro-bubble air distributing device and can provide nanometer micro-bubbles to the nanometer micro-bubble air distributing device.

In some embodiments, the aeration biofiltration device comprises a bearing layer, a fixed packing layer, a controllable packing layer and an aeration gas distribution pipe, wherein the bearing layer is fixedly arranged at the lower part of the aeration biofiltration area, the fixed packing layer is fixed above the bearing layer, the controllable packing layer is movably arranged above the fixed packing layer, and the aeration gas distribution pipe is arranged between the bearing layer and the fixed packing layer.

In some embodiments, the controllable packing layer is connected to the top of the tank body by a catenary.

In some embodiments, a water inlet space is reserved between the supporting layer and the bottom of the tank body, and a clear water area is arranged between the controllable packing layer and the top of the tank body.

In some embodiments, the multifunctional landscape water body treatment device further comprises a water inlet pipe, a water outlet pipe and an overflow weir, wherein the water inlet pipe is connected with the air flotation functional area and is positioned below the deslagging device, the overflow weir is obliquely arranged, the lower end of the overflow weir is connected with the clear water area, and the upper end of the overflow weir is connected with the water outlet pipe.

In some embodiments, the included angle of the overflow weir with the vertical direction is 60 degrees, and the surface of the overflow weir is provided with teeth which are transversely arranged.

In some embodiments, the slag removal device comprises a slag scraper mounted on top of the aerated biological filtration zone of the tank body and a slag discharge tank mounted on a side of the tank body opposite the slag scraper.

The utility model has the advantages that: the utility model discloses a set up an air supporting device, utilized the air supporting effect to remove the suspended solid in the sewage, increased the dissolved oxygen of aquatic simultaneously, alleviateed aeration systems's load to and reduce the back flush number of times, the life cycle in extension filtering pond. The hydraulic retention time of the water body in the aeration biological filtering area is controlled by arranging a movable baffle between the area with the air flotation function and the aeration biological filtering area and by automatically controlling a system or manually adjusting the water flow rate of the air flotation function area flowing into the aeration biological filtering area. In addition, the height of the packing layer and the particle size of the filter material are regulated and controlled according to different conditions of water quality by arranging the controllable packing layer, and the water treatment mode can be regulated and controlled according to the change of the water quality. The device has the advantages of low investment cost, short treatment period, simple operation, no secondary pollution, good effluent quality and the like.

Drawings

Fig. 1 is a schematic structural view of a treatment device for a multifunctional landscape water body according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 schematically shows a multi-functional landscape water body treatment device according to an embodiment of the present invention.

Referring to fig. 1, the treatment device of the multifunctional landscape water body comprises a tank body 1, an air flotation device 2, an aeration biological filtering device 3, a deslagging device 4, a movable baffle 5, a water inlet pipe 6, a water outlet pipe 7, an overflow weir 8 and a backwashing system. The tank body 1 can adopt a square structure, the tank body 1 is provided with a clapboard 14, and the inside of the tank body 1 is divided into an air flotation functional area 11 and an aeration biological filtration area 12 through the clapboard 14. The air flotation device 2 is arranged in the air flotation functional area 11, the deslagging device 4 is arranged at the upper end of the air flotation functional area 11, and the aeration biofiltration device 3 is arranged in the aeration biofiltration area 12. A water passing channel is arranged between the bottom of the air flotation functional area 11 and the bottom of the aeration biological filtering area 12, the movable baffle 5 is arranged in the water passing channel, and the movable baffle 5 can be controlled by a manual or automatic control system to lift or open and close. When the movable baffle 5 is closed, the communication between the air flotation functional area 11 and the aeration biological filtering area 12 can be completely blocked and adjusted, and when the movable baffle 5 is opened, the liquid flow between the air flotation functional area 11 and the aeration biological filtering area 12 can be adjusted.

The air floating device 2 comprises a nanometer micro-bubble generating device 21 and a nanometer micro-bubble air distributing device 22, the nanometer micro-bubble air distributing device 22 is installed in the air floating functional area 11 and is located at the lower part of the air floating functional area 11, and the nanometer micro-bubble generating device 21 is connected with the nanometer micro-bubble air distributing device 22 and can provide nanometer micro-bubbles for the nanometer micro-bubble air distributing device 22.

The aeration biofiltration device 3 comprises a bearing layer 31, a fixed filler layer 32, a controllable filler layer 33 and an aeration gas distribution pipe 34. The supporting layer 31 can be filled with cobblestones, and the fixed filler layer 32 and the controllable filler layer 33 are filled with filter materials. The supporting layer 31 is fixedly arranged at the lower part of the aeration biological filtering area 12, and the fixed filler layer 32 is fixed above the supporting layer 31. The controllable packing layer 33 is movably arranged above the fixed packing layer 32, and the controllable packing layer 33 is connected with the top of the tank body 1 through a hanging chain 35.

The aeration air distribution pipe 34 is arranged between the supporting layer 31 and the fixed filler layer 32, and the aeration air distribution pipe 34 can adopt a single-hole membrane air diffuser. If the treated water body contains higher algae, SS and BOD, the whole device is mainly used for oxidation degradation and filtration, and the movable baffle 5 can be opened to communicate the air flotation functional area 11 and the aeration biological filtration functional area 11 for air flotation and filtration; if the water quality contains low SS and high TN, NH3-N, COD and BOD, the nano micro-bubble generating device can be closed and the movable baffle 5 can be closed, so that the whole device becomes an aerobic zone and an anaerobic zone, the oxidation degradation is carried out in the aerobic zone, and the denitrification reaction is carried out in the anaerobic zone. Two sets of different water treatment processes can be realized in the same device, and the device can be suitable for water treatment of different pollutants.

A water inlet space is reserved between the supporting layer 31 and the bottom of the tank body 1, and a clear water area 13 is arranged between the controllable packing layer 33 and the top of the tank body 1. The water inlet pipe 6 is communicated with the air flotation functional area 11 and is positioned below the deslagging device 4, the overflow weir 8 is obliquely arranged, the lower end of the overflow weir 8 is connected with the clean water area 13, and the upper end of the overflow weir 8 is connected with the water outlet pipe 7. The included angle between the overflow weir 8 and the vertical direction is 60 degrees, and the filtered clean water in the clean water area 13 overflows upwards along the overflow weir 8 and then is discharged through the water outlet pipe 7. Control valves are arranged on the water inlet pipe 6 and the water outlet pipe 7. The surface of the overflow weir 8 is provided with teeth which are transversely arranged, so that the friction resistance on the surface of the overflow weir 8 can be increased, and the loss of filter materials can be reduced.

The deslagging device 4 comprises a slag scraper 41 and a slag discharge groove 42, the slag scraper 41 is arranged at the top of the aeration biological filtration zone 12 of the tank body 1, and the slag discharge groove 42 is arranged at one side of the tank body 1 and is opposite to the slag scraper 41.

The backwashing system comprises a backwashing water distribution pipe 91, a backwashing gas distribution pipe 92, a backwashing water outlet pipe 93 and a backwashing water collecting tank 94. The backwash water distribution pipe 91 is communicated with a water inlet space below the supporting layer 31, and the backwash air distribution pipe 92 is distributed at the lower part of the supporting layer 31. The back washing water collecting tank 94 is connected with the water outlet end of the overflow weir 8, one end of the back washing water outlet pipe 93 is connected with the bottom of the back washing water collecting tank 94, and the other end of the back washing water outlet pipe 93 is connected with the water inlet pipe 6.

The utility model discloses the during operation passes through inlet tube 6 through landscape water and gets into air supporting functional area 11, utilizes nanometer microbubble to detach and increase dissolved oxygen with the suspended solid in the water. The principle of air-float separation is that air and water are dissolved in water under a certain pressure, the air and water are strived to be in a saturated state, then the formed pressure dissolved air water is released through decompression to generate a large number of micro bubbles which are fully contacted with suspended particles in the water, so that the suspended particles in the water are adhered to the bubbles and float upwards to the water surface along with the bubbles to form scum, and then the scum is removed by a deslagging device 4. The water treated by the air flotation functional zone 11 enters the biological aerated filter functional zone 12 from the bottom, passes through the supporting layer 31, the water entering the filter is uniform due to the resistance of the supporting layer 31, and the water body is further filtered through the supporting layer 31; is arranged on the supporting layer 31, and air is distributed through the supporting layer, so that the filter material is in an expansion state, and the dissolved oxygen in water is increased. The water body passes through the filter material layer, and because a large number of microbial membranes attached to the surface of the filter material layer are combined with dissolved oxygen in water to oxidize and degrade organic matters in the water, the sewage is adsorbed and filtered again by utilizing the porous structure of the filter material. The treated water enters the water outlet pipe 7 through the clear water area 13 and the overflow weir 8 to be discharged. As the aeration biological filter filters sewage for a long time, a plurality of aged biological membranes and intercepted suspended matters exist in a filter material layer. Reverse backwashing is periodically carried out by adopting gas-water combination to improve the activity of the biological membrane, backwashing water enters the backwashing water collecting tank 94 and is discharged from the backwashing water outlet pipe 93, and because the backwashing water contains intercepted suspended matters and aged and fallen microbial membranes, the backwashing water needs to flow back to the water inlet pipe to be subjected to air floatation and filtration treatment by micro-nano bubbles again, so that the discharge waste of the backwashing water and the environmental pollution are avoided.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a treatment device of multi-functional landscape water body which characterized in that: including cell body (1), air supporting device (2), aeration biofiltration device (3), dross removal mechanism (4) and adjustable fender (5), cell body (1) is equipped with air supporting functional area (11) and aeration biofiltration district (12), install in air supporting functional area (11) air supporting device (2), dross removal mechanism (4) are installed in the upper end of air supporting functional area (11), aeration biofiltration device (3) are installed in aeration biofiltration district (12), be equipped with water channel between the bottom of air supporting functional area (11) and the bottom of aeration biofiltration district (12), adjustable fender (5) set up in water channel, adjustable fender (5) can block or adjust the liquid flow between air supporting functional area (11) and aeration biofiltration district (12).

2. The multi-functional landscape water body's treatment device of claim 1, characterized in that: air supporting device (2) include nanometer microbubble generating device (21) and nanometer microbubble gas distribution device (22), nanometer microbubble gas distribution device (22) are installed in air supporting functional area (11) and are located the lower part of air supporting functional area (11), nanometer microbubble generating device (21) are connected and can provide the nanometer microbubble to nanometer microbubble gas distribution device (22) with nanometer microbubble gas distribution device (22).

3. The multi-functional landscape water body's treatment device of claim 2, characterized in that: the aeration biofiltration device (3) comprises a bearing layer (31), a fixed packing layer (32), a controllable packing layer (33) and an aeration gas distribution pipe (34), wherein the bearing layer (31) is fixedly arranged at the lower part of the aeration biofiltration area (12), the fixed packing layer (32) is fixed above the bearing layer (31), the controllable packing layer (33) is movably arranged above the fixed packing layer (32), and the aeration gas distribution pipe (34) is arranged between the bearing layer (31) and the fixed packing layer (32).

4. The multi-functional landscape water body's treatment device of claim 3, characterized in that: the controllable packing layer (33) is connected with the top of the tank body (1) through a hanging chain (35).

5. The multi-functional landscape water body's treatment device of claim 3, characterized in that: a water inlet space is reserved between the supporting layer (31) and the bottom of the pool body (1), and a clear water area (13) is arranged between the controllable packing layer (33) and the top of the pool body (1).

6. The multi-functional landscape water body's treatment device of claim 5, characterized in that: still include inlet tube (6), outlet pipe (7) and overflow weir (8), inlet tube (6) are connected and are located the below of dross removal mechanism (4) with air supporting functional area (11), overflow weir (8) slope sets up, the lower extreme and the clear water district (13) of overflow weir (8) meet, the upper end and the outlet pipe (7) of overflow weir (8) are connected.

7. The multi-functional landscape water body's treatment device of claim 6, characterized in that: the included angle between the overflow weir (8) and the vertical direction is 60 degrees, and the surface of the overflow weir (8) is provided with teeth which are transversely arranged.

8. The multi-functional landscape water body's treatment device of claim 1, characterized in that: the slag removing device (4) comprises a slag scraping machine (41) and a slag discharging groove (42), the slag scraping machine (41) is installed at the top of the aeration biological filtering area (12) of the tank body (1), and the slag discharging groove (42) is installed at one side of the tank body (1) and is opposite to the slag scraping machine (41).