CN215559305U

CN215559305U - Drainage ditch water environment ecological restoration system

Info

Publication number: CN215559305U
Application number: CN202121469471.9U
Authority: CN
Inventors: 邱小琮; 赵增锋; 冯娜; 尹娟
Original assignee: Ningxia University
Current assignee: Ningxia University
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-01-18
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to the technical field of water environment ecological restoration, and discloses a drainage ditch water environment ecological restoration system, which comprises a drainage ditch, wherein an upstream isolation net is arranged at the upstream of the drainage ditch, a downstream isolation net is arranged at the downstream of the drainage ditch, a planting area is arranged at the bank side, and a floating bed and an aeration device are arranged at intervals inside the drainage ditch; the multirow culture tank that runs through the superficial bed is seted up on the upper portion of superficial bed, and the inside culture medium that packs of culture tank is used for planting aquatic plant, and multirow dovetail type crossbeam groove has been seted up to the superficial bed lower part, and the inside in crossbeam groove is inserted and is equipped with the crossbeam for hang the porous suspension ball that packs and have the biofilm carrier, the superficial bed four corners respectively install 1 adjustment mechanism of adjusting the superficial bed depth of entry, adjust the depth of entry according to the plant growth vigor. Realizes the water-adapted culture and the microbial film formation of the plants in the ecological restoration process and improves the ecological restoration effect.

Description

Drainage ditch water environment ecological restoration system

Technical Field

The utility model relates to the technical field of water environment ecological restoration, in particular to a drainage ditch water environment ecological restoration system.

Background

With the rapid development of economy, the urbanization process is accelerated, human migration is frequent, the discharge amount of sewage is increased, however, the sewage treatment is relatively laggard, a large amount of sewage is discharged into rivers and lakes, so that the water is seriously polluted, pollutants in the water are easy to absorb and attach to suspended particles and deposit in sediments, and a large number of researches show that the sediments in the rivers and lakes are seriously polluted. The sediment is used as an accumulation reservoir of pollutants, when the water body changes (temperature, pH, conductivity, dissolved oxygen, water body disturbance and the like), the pollutants in the sediment are released back to the water body again to cause secondary pollution to the water body, and therefore, the water body and the sediment are required to be simultaneously repaired in the aspect of water environment repair. A large amount of domestic sewage, industrial wastewater, agricultural drainage and the like are collected in the drainage ditch, the water quality is generally poor, if the water quality is not repaired, the water quality is polluted in a wider range after being collected in a river, and therefore a water environment repairing method suitable for the drainage ditch is urgently needed.

The water environment restoration method has various types, and common methods include a physical method, a chemical method, a physical-chemical method, a biological method and the like, and the biological method is widely adopted because the cost is lower in the restoration process and secondary pollution to the environment is avoided. The biological method comprises a plant method, an animal method, a microbial method and a comprehensive ecological system formed by the three methods, the existing system for restoring the water environment is mainly provided with the plant method and the microbial method, and the comprehensive ecological system formed by the animal method and the three methods is less. In the process of cultivating aquatic plant seedlings, sometimes the water penetration depth of a floating bed needs to be adjusted according to the growth vigor of plants, so that roots of the plants are finally pricked into lower sediments, or part of the plants need to be sunk into water in winter to prevent freeze death, however, the effect cannot be realized in the existing comprehensive ecological system, and the water-suitable cultivation of the plants cannot be realized. When the microorganism is used for restoration, the biological agent is usually directly scattered into water, the biological agent can sink to the water bottom, the contact area with the water body is small, the biological agent is easily washed away by water flow, the water quality purification effect is poor, the propagation cannot be expanded on a stable carrier, and the water quality purification effect is better.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a drainage ditch water environment ecological restoration system, which solves the problems that the plant water-adaptive culture can not be realized by adjusting the water inlet depth of a floating bed, the contact area of a biological agent and a water body is small, the water quality purification effect is poor, and the propagation can not be expanded on a stable carrier at present.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a drainage ditch water environment ecological restoration system comprises a drainage ditch, wherein an upstream isolation net is arranged at the upstream of the drainage ditch, a downstream isolation net is arranged at the downstream of the drainage ditch, a planting area is arranged on the bank side, and a floating bed and an aeration device are arranged in the drainage ditch at intervals; the utility model discloses a floating bed, including the floating bed, the upper portion of floating bed is seted up the multirow and is run through the culture tank, the lower part of floating bed and seted up 1 adjustment mechanism of regulation floating bed depth of entry in multirow swallow-tail shape crossbeam groove, four corners respectively, the inside packing of culture tank has the culture medium, the inside of crossbeam groove is inserted and is equipped with the crossbeam, the lower part row formula of crossbeam has arranged rings, the one end of second stay cord is connected to rings, and the other end system of second stay cord has the gravity piece, equidistant porous suspension ball has been arranged on the second stay cord, and the inside packing of porous suspension ball has the biofilm carrier.

Preferably, the adjusting mechanism comprises an outer sleeve and an inner sleeve which are in threaded connection, the outer sleeve and the inner sleeve are both hollow cylinders, the bottom of the inner sleeve is mounted on the floating bed, the top of the outer sleeve is provided with a turntable, and one end of a first pull rope is connected inside the upper portion of the outer sleeve, and the other end of the first pull rope penetrates through the outer sleeve, the inner sleeve and the floating bed and is connected onto the gravity ball.

Preferably, the upper part of the outer sleeve is fixedly provided with a bearing, an inner ring of the bearing is provided with a cross rod, and one end of the first pull rope is connected to the cross rod.

Preferably, the device further comprises a vertical net and a cover net, four corners of the cover net are connected with the rotary table, two corners of the upper portion of the vertical net are connected with the rotary table, and two corners of the lower portion of the vertical net are connected with the lower portion of the inner sleeve.

Preferably, the water-retaining wall is further provided with an isolation net groove, and the upstream isolation net is arranged in the isolation net groove.

Preferably, the upstream isolation net comprises a first-stage isolation net, a second-stage isolation net and a third-stage isolation net which are arranged step by step along the water flow direction, the aperture of the upstream isolation net is reduced step by step, the first-stage isolation net is fixedly installed in the isolation net groove, and the second-stage isolation net and the third-stage isolation net are detachably installed in the isolation net groove.

Advantageous effects

Compared with the prior art, the utility model has the following beneficial effects:

(1) this drainage ditch water environment ecological remediation system, upper portion through at the superficial bed sets up the culture tank, culture tank inside places the culture medium, plant aquatic plant on the culture medium, the lower part of superficial bed sets up the crossbeam groove, crossbeam inslot interpolation is equipped with the crossbeam, connect the equidistance on the rings of crossbeam lower part and arranged the second stay cord of porous suspension ball, the inside biofilm carrier that packs of porous suspension ball, the microorganism biofilm carrier of being convenient for, combine bank planting district simultaneously, can be systematic restore drainage ditch deposit thing and water, the area of contact of biofilm carrier with the water has been improved simultaneously, purifying effect is improved.

(2) This drainage ditch water environment ecological remediation system, four corners through at floating bed sets up adjustment mechanism, adjustment mechanism includes threaded connection's outer sleeve and inner skleeve, outer sleeve and inner skleeve are hollow barrel, the top of outer sleeve is provided with the carousel, the one end of the first stay cord of internal connection on upper portion, the other end of first stay cord runs through the outer sleeve, the inner skleeve is connected on the gravity ball with floating the bed, when needing to adjust the plant depth of entry because of aquatic plant growing trend or prevent frostbite winter, rotate the carousel, make the outer sleeve remove to the one end of keeping away from floating the bed, the length that is located of first stay cord this moment and floats the bed lower part will shorten, floating the bed will move down, satisfy the requirement of aquatic plant depth of entry.

Drawings

FIG. 1 is a schematic plan view of the present invention;

FIG. 2 is a schematic plan view of the floating bed of the present invention;

FIG. 3 is a schematic sectional view of the floating bed structure of the present invention;

FIG. 4 is a schematic sectional view of the structure of the floating bed of the present invention in use;

FIG. 5 is a schematic view of the installation of a multi-hole levitated ball of the present invention;

FIG. 6 is a schematic view of an adjustment mechanism of the present invention;

fig. 7 is a schematic view of the bearing structure of the present invention.

In the figure: 1. a drainage ditch; 2. floating bed; 2-1, a culture tank; 2-2, beam grooves; 3. a planting area; 4. a water retaining wall; 5. an upstream isolation mesh; 5-1, a primary isolation net; 5-2, a secondary isolation net; 5-3, a third-level isolation net; 6. an aeration device; 7. a downstream isolation mesh; 8. an adjustment mechanism; 8-1, an outer sleeve; 8-2, an inner sleeve; 8-3, a turntable; 8-4, a bearing; 8-4-1, a cross bar; 9. a first pull cord; 10. a gravity ball; 11. a cross beam; 11-1, a hanging ring; 12. a second pull cord; 13. a porous suspension ball; 14. a gravity block; 15. erecting a net; 16. covering a net; 17. and (4) a culture medium.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: an ecological restoration system for a water environment of a drainage ditch comprises a drainage ditch 1, wherein an upstream isolation net 5 is arranged at the upstream of the drainage ditch 1, a downstream isolation net 7 is arranged at the downstream of the drainage ditch, a planting area 3 is arranged at the bank side, and a floating bed 2 and an aeration device 6 are arranged at intervals inside the drainage ditch. The upstream isolation net 5 can prevent pollutants such as dry branches, fallen leaves and the like from entering the restoration area, and can throw aquatic animals such as shellfish, fishes and the like capable of restoring water environment in the restoration area in combination with the downstream isolation net 7 to reduce the escape amount of the aquatic animals; through being provided with planting district 3 on the bank, plant the aquatic plant that lotus, calamus etc. can directly restore the deposit pollutant, plant the aquatic plant that can directly purify the water on floating bed 2, aeration equipment 6 can be for the water oxygen suppliment, improves the purifying effect of animals and plants and microorganism. The upper part of the floating bed 2 is provided with a plurality of rows of culture tanks 2-1 penetrating through the floating bed 2, the lower part of the floating bed 2 is provided with a plurality of rows of dovetail-shaped beam grooves 2-2, four corners of the culture tanks are respectively provided with 1 adjusting mechanism 8 for adjusting the water inlet depth of the floating bed 2, the water inlet depth of the floating bed 2 can be adjusted according to the growth vigor of aquatic plants, a culture medium 17 is filled in the culture tanks 2-1 and can be selected from materials such as bio-organic fertilizers, a beam 11 is inserted in the beam grooves 2-2, the beam grooves 2-2 are dovetail-shaped, the heavier the object hung on the beam 11 is, the more the object is combined with the beam grooves 2-2, the more the object is decrypted and the object is not easy to fall off. The hanging rings 11-1 are arranged at the lower part of the cross beam 11 in a row mode, the hanging rings 11-1 are connected with one end of a second pull rope 12, the other end of the second pull rope 12 is tied with a gravity block 14, porous suspension balls 13 are arranged on the second pull rope 12 at equal intervals, biological fillers are filled in the porous suspension balls 13, the selection of the biological fillers is determined by experiments, the biological fillers can be suitable for dominant microorganisms in a repair area, the membrane-hanging propagation of the microorganisms on the biological fillers is facilitated, meanwhile, the microorganisms can be put into the repair area, the microbial population quantity is increased, the microorganism membrane-hanging is accelerated, the repair effect is improved, the contact area of the biological fillers and a water body is improved by hanging the second pull rope 12 with the equidistant porous suspension balls 13 on the cross beam 11, the microorganism water purification attached to the biological fillers is facilitated, the gravity block 14 is hung on the second pull rope 12, and the gravity block 14 sinks to the bottom of the water body, the porous floating ball 13 is prevented from being crossed and knotted along with the second pull rope 12.

Further, the adjusting mechanism 8 comprises an outer sleeve 8-1 and an inner sleeve 8-2 which are in threaded connection, the outer sleeve 8-1 and the inner sleeve 8-2 are both hollow cylinders, the bottom of the inner sleeve 8-2 is installed on the floating bed 2, the top of the outer sleeve 8-1 is provided with a rotating disc 8-3, the inside of the upper portion of the outer sleeve 8-1 is connected with one end of a first pull rope 9, and the other end of the first pull rope 9 penetrates through the outer sleeve 8-1, the inner sleeve 8-2 and the floating bed 2 and is connected to the gravity ball 10. The outer sleeve 8-1 can be moved in the direction far away from or close to the floating bed 2 by rotating the rotary table 8-3, when the aquatic plants grow better and need to increase the water entry depth or need to prevent frostbite and increase the water entry depth in winter, the rotary table 8-3 is rotated to move the outer sleeve 8-1 in the direction far away from the floating bed 2, at the moment, the length of the first pull rope 9 below the floating bed is shortened, and the floating bed 2 moves downwards under the action of the gravity ball 10 to increase the water entry depth.

Furthermore, a bearing 8-4 is fixedly installed at the upper part of the outer sleeve 8-1, a cross rod 8-4-1 is arranged on an inner ring of the bearing 8-4, and one end of a first pull rope 9 is connected to the cross rod 8-4-1, so that the first pull rope 9 can be prevented from twisting when the rotary table 8-3 rotates, and the first pull rope 9 is protected.

Furthermore, the floating bed device also comprises a vertical net 15 and a cover net 16, wherein four corners of the cover net 16 are connected with the turntables 8-3 arranged at four corners of the floating bed 2, two corners at the upper part of the vertical net 15 are connected with the turntables 8-3, and two corners at the lower part of the vertical net 15 are connected with the lower part of the inner sleeve 8-2. Adjustment mechanism 8 provides the support for founding net 15 and cover net 16, and the connected mode can be for simple ligature or articulate, through setting up found net 15 and cover net 16, prevents that birds from eating aquatic plant secretly.

Further, the water retaining wall 4 is further included, the drainage ditch side slope is inclined, installation is not convenient when the isolation net is arranged, the water retaining wall 4 is arranged and provided with an isolation net groove, and the upstream isolation net 5 can be installed in the isolation net groove.

Further, the upstream isolation net 5 comprises a first-stage isolation net 5-1, a second-stage isolation net 5-2 and a third-stage isolation net 5-3 which are arranged step by step along the water flow direction, the aperture of the upstream isolation net 5 is reduced step by step, the first-stage isolation net 5-1 is fixedly arranged in an isolation net groove and mainly blocks large pollutants, the second-stage isolation net 5-2 and the third-stage isolation net 5-3 are detachably arranged in the isolation net groove and mainly block small pollutants such as filamentous algae and the like, and the upstream isolation net can be detached and replaced when the aperture is blocked to influence water passing, or the water blocking depth is detached or changed when the water passing is influenced in a rich water period, so that the water passing of the drainage ditch 1 is guaranteed to be normally carried out.

The working mode is as follows:

when the water ecological restoration of the drainage ditch 1 is needed, a restoration area is selected, a water retaining wall 4 is arranged at the upstream, a first-stage separation net 5-1, a second-stage separation net 5-2 and a third-stage separation net 5-3 are installed in an isolation net groove formed in the water retaining wall 4, a downstream separation net 7 is arranged at the downstream, biological fillers are filled into porous suspension balls 13, the porous suspension balls 13 are equidistantly arranged on second pull ropes 12, one ends of the second pull ropes 12 are hung with gravity blocks 14, the other ends of the second pull ropes are tied on hanging rings 11-1 at the lower parts of cross beams 11, the floating bed 2 is placed into water, the cross beams 11 are inserted into the cross beam grooves 2-2, culture mediums 17 are added into culture grooves 2-1 of the floating bed 2, and aquatic plants are planted. The adjusting mechanisms 8 are arranged at four corners of the floating bed 2, the lower part of the first pull rope 9 penetrates through the outer sleeve 8-1, the inner sleeve 8-2 and the floating bed 2 and is connected to the gravity ball 10, the gravity ball 10 has larger gravity and sinks into bottom sediments, then the upper part of the first pull rope 9 is connected to the cross rod 8-4-1, four corners of the cover net 16 are connected with the rotary table 8-3, two corners of the upper part of the vertical net 15 are connected with the rotary table 8-3, and two corners of the lower part of the vertical net are connected with the lower part of the inner sleeve 8-2.

When the water entry depth needs to be adjusted, the vertical net 15 and the cover net 16 are taken down, the rotary table 8-3 is rotated, the outer sleeve 8-1 is made to move towards the direction far away from the floating bed 2, the length of the first pull rope 9 under the floating bed is shortened at the moment, and the floating bed 2 moves downwards under the action of the gravity ball 10, so that the water entry depth is increased.

When the pores of the secondary isolation net 5-2 and the tertiary isolation net 5-3 are blocked to influence water passing, the secondary isolation net and the tertiary isolation net can be detached and replaced, or when the water passing is influenced in a rich water period, the water blocking depth is detached or changed, and the drainage ditch 1 is ensured to normally pass water.

If the biofilm formation speed of microorganisms on the biological filler needs to be accelerated, a microbial preparation can be broadcast in a repairing area, the microbial population quantity is increased, the microorganisms can conveniently form a biofilm on the biological filler, and a stable carrier is formed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A drainage ditch water environment ecological restoration system comprises a drainage ditch (1), wherein an upstream isolation net (5) is arranged at the upstream of the drainage ditch (1), a downstream isolation net (7) is arranged at the downstream, a planting area (3) is arranged at the bank side, and a floating bed (2) and an aeration device (6) are arranged at intervals inside the drainage ditch; the utility model discloses a floating bed, including bed (2), culture tank (2-1), the lower part of bed (2) are seted up the multirow and are run through the culture tank (2-1) of bed (2), the multirow swallow-tail form crossbeam groove (2-2) is seted up to the lower part of bed (2), 1 regulation mechanism (8) of adjusting the bed (2) depth of intaking are respectively installed in the four corners, culture tank's (2-1) inside packing has culture medium (17), crossbeam (11) are inserted to the inside of crossbeam groove (2-2), rings (11-1) have been arranged to the lower part row of crossbeam (11), rings (11-1) are connected the one end of second stay cord (12), and the other end system of second stay cord (12) has gravity piece (14), porous suspension ball (13) have been arranged to equidistance on second stay cord (12), and the inside packing of porous suspension ball (13) has the biofilm carrier.

2. The ecological restoration system for the water environment of the drainage ditch according to claim 1, wherein the adjusting mechanism (8) comprises an outer sleeve (8-1) and an inner sleeve (8-2) which are connected through screw threads, the bottom of the inner sleeve (8-2) is installed on the floating bed (2), the outer sleeve (8-1) and the inner sleeve (8-2) are both hollow cylinders, the top of the outer sleeve (8-1) is provided with a rotating disc (8-3), the inside of the upper part is connected with one end of a first pull rope (9), and the other end of the first pull rope (9) penetrates through the outer sleeve (8-1), the inner sleeve (8-2) and the floating bed (2) and is connected onto the gravity ball (10).

3. The ecological restoration system for the drainage ditch water environment according to claim 2, wherein a bearing (8-4) is fixedly arranged at the upper part of the outer sleeve (8-1), a cross rod (8-4-1) is arranged on the inner ring of the bearing (8-4), and one end of the first pull rope (9) is connected to the cross rod (8-4-1).

4. The ecological restoration system for the drainage ditch water environment according to claim 2, further comprising a vertical net (15) and a cover net (16), wherein four corners of the cover net (16) are connected with the rotary table (8-3), two corners of the upper part of the vertical net (15) are connected with the rotary table (8-3), and two corners of the lower part of the vertical net (15) are connected with the lower part of the inner sleeve (8-2).

5. The ecological restoration system for the drainage ditch water environment according to claim 1, further comprising a water retaining wall (4), wherein an isolation net groove is formed in the water retaining wall (4), and the upstream isolation net (5) is installed in the isolation net groove.

6. The drainage ditch water environment ecological restoration system according to claim 5, wherein the upstream isolation net (5) comprises a first-stage isolation net (5-1), a second-stage isolation net (5-2) and a third-stage isolation net (5-3) which are arranged step by step along the water flow direction, the pore diameter of the upstream isolation net (5) is reduced step by step, the first-stage isolation net (5-1) is fixedly installed in an isolation net groove, and the second-stage isolation net (5-2) and the third-stage isolation net (5-3) are detachably installed in the isolation net groove.