CN111704311A

CN111704311A - Wetland ecological ditch construction system for farmland tail water purification

Info

Publication number: CN111704311A
Application number: CN202010464864.4A
Authority: CN
Inventors: 袁斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-09-25

Abstract

The invention relates to a wetland ecological ditch construction system for purifying farmland tail water, which comprises an ecological flow channel, a filter dam structure and a drainage branch channel, wherein the ecological flow channel is arranged in a wet area and an outflow area which flow downwards from the ecological flow channel; filter dam structure and include many inserted bar units, many inserted bar units insert the bottom of ecological runner, be equipped with the reinforcing bar net between the adjacent inserted bar unit, the inserted bar unit is connected through the mechanism that connects soon in the both sides of reinforcing bar net, a plurality of inserted bar units and reinforcing bar net are connected side by side and are formed filtering dam block net unit, filter dam structure includes filtering dam block net unit more than two, form filtration space between the adjacent filtering dam block net unit, pack filtering unit in the filtration space, filtering unit is fixed by the filtering dam block net unit of both sides. The system is convenient to construct, is convenient to implement in rural areas, and has high farmland tail water purification efficiency.

Description

Wetland ecological ditch construction system for farmland tail water purification

Technical Field

The invention relates to the field of wetland ecological ditch construction, in particular to a wetland ecological ditch construction system for farmland tail water purification.

Background

In agricultural production activities, due to reasons such as unreasonable planting structure, fertilization, medication, farmland water management, degradation of ecological functions of ditches, non-cyclic utilization of wastes and the like, dissolved or solid pollutants, such as soil particles, nitrogen, phosphorus, rural livestock manure, domestic garbage and a large amount of organic or inorganic substances in farmlands, enter receiving water bodies such as rivers, lakes, reservoirs, gulfs and the like from unspecified regions through farmland surface runoff, farmland drainage and underground seepage under the action of rainfall and runoff scouring, and cause water body pollution.

The fertilizer used in agricultural production comprises nitrogenous fertilizer, potash fertilizer, phosphate fertilizer and the like. The nitrogen fertilizer and the potassium fertilizer are easy to be absorbed by plants, and the absorption rate of the plants to the phosphate fertilizer is far lower than that of the nitrogen fertilizer and the potassium fertilizer, so that the unabsorbed phosphate fertilizer is accumulated in soil, a small part of the phosphate fertilizer is decomposed by microorganisms in the soil, most of the phosphate fertilizer is likely to be washed into a water body along with rainfall, once the phosphorus concentration in the water body is too high, algae are easy to breed, eutrophication of the water quality is caused, and water supply safety is further influenced. The traditional farmland tail water treatment method mainly adopts artificial wetland technology, however, although the facilities can effectively reduce indexes such as ammonia nitrogen, Chemical Oxygen Demand (COD) and the like in sewage, the reduction effect on the total phosphorus index is very limited, and the requirements of people on the treatment of the farmland tail water are difficult to meet.

Therefore, the eutrophication of the farmland tail water needs to be purified, and Chinese patent publication No. CN110963638A discloses a high-efficiency composite phosphorus removal type farmland tail water treatment system, which comprises a vegetation layer, a coarse sand layer and a reinforced phosphorus removal layer which are arranged in sequence from top to bottom, wherein the vegetation layer comprises culture soil with the permeability coefficient of 6-8cm/s and vegetation planted on the culture soil; the coarse sand layer is laid at the bottom of the culture soil; the reinforced dephosphorization layer comprises a plurality of reinforced dephosphorization geoclades and zeolite filled among the reinforced dephosphorization geoclades; the reinforced dephosphorizing geocell is a block formed by mixing sand, zero-valent iron, zero-valent aluminum, activated carbon powder and an additive and then coating the mixture with geotextile; the weight percentages of the sand, the zero-valent iron, the zero-valent aluminum, the activated carbon powder and the additive are respectively 70-80%, 4-6%, 3-6%, 7-12% and 3-8%. This clean system has the input cost height, is difficult to the problem of practical implementation in rural area, and this patent provides a wetland ecological ditch system of founding, reduces farmland tail water purification cost, the practical implementation of being convenient for.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a wetland ecological ditch construction system for purifying farmland tail water.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a wetland ecological ditch construction system for purifying farmland tail water comprises an ecological flow channel, a filter dam structure, a drainage branch channel and a drainage branch channel, wherein the ecological flow channel is arranged in a wet area and an outflow area downstream of the ecological flow channel;

filtration dam structure includes many inserted bar units, and many inserted bar units insert the bottom of ecological runner, are equipped with the reinforcing bar net between the adjacent inserted bar unit, and the inserted bar unit is connected through the mechanism that connects soon in the both sides of reinforcing bar net, and a plurality of inserted bar units and reinforcing bar net are connected side by side and are formed filtration dam block net unit, and filtration dam structure includes filtration dam block net unit more than two, forms filtration space between the adjacent filtration dam block net unit, and the packing filter unit in the filtration space, filter unit is fixed by the filtration dam block net unit of both sides.

Furthermore, the filtering unit comprises a plurality of filtering bags, and sand or activated carbon is filled in the filtering bags.

Furthermore, the root inserted bar unit comprises a plurality of inserted bars which are mutually connected, adjacent inserted bars are connected through a connecting sleeve, a partition plate is arranged inside the connecting sleeve, insertion holes are formed in two ends of the connecting sleeve, the end portions of the inserted bars stretch into the insertion holes of the connecting sleeve, and the end portions of the connecting sleeve are welded and fixed with the inserted bars.

Furthermore, connect the mechanism soon including setting up a plurality of fast fishplates in the inserted bar both sides, set up the fixed plate in the reinforcing bar net both sides, all be equipped with the connecting hole on fast fishplate bar and the fixed plate, insert bolted connection fast fishplate bar and fixed plate in the connecting hole.

Furthermore, the number of the quick connection plates on one side of the inserted bar is consistent with that of the fixing plates on one side of the reinforcing mesh.

Further, the section of the connecting sleeve is H-shaped.

Further, the filtering dam structure is located at the downstream position of the artificial drainage branch channel.

Furthermore, the reinforcing mesh is formed by weaving reinforcing steel bars.

Furthermore, vegetation is planted on two sides of the ecological flow channel.

The invention has the beneficial effects that: the system is characterized in that a filtering dam structure is arranged at the downstream position of an artificial drainage branch channel, farmland tail water introduced into the artificial drainage branch channel is purified through the filtering dam structure, the filtering dam structure comprises a plurality of inserted rod units, the inserted rod units are inserted into the bottom of an ecological flow channel, a reinforcing mesh is arranged between every two adjacent inserted rod units, two sides of the reinforcing mesh are connected with the inserted rod units through quick connection mechanisms, the inserted rod units and the reinforcing mesh are connected side by side to form filtering dam blocking units, the filtering dam structure comprises more than two filtering dam blocking units, a filtering space is formed between every two adjacent filtering dam blocking units, the filtering space is filled with filtering units, the filtering units are fixed by the filtering dam blocking units on the two sides, the filtering units comprise a plurality of filtering bags, sand or active carbon is filled in the filtering bags, the farmland tail water introduced into the ecological flow channel flows into a filtering bag in the filtering dam structure layer by layer after being filtered and then flows into a standing area, can be further used through the outflow district outflow, this system founds the convenience, is convenient for implement in rural area, and farmland tail water purification efficiency is high.

Drawings

FIG. 1 is a schematic diagram of a wetland ecological ditch construction system of the invention;

FIG. 2 is a schematic top view of the filter dam construction of the present invention;

FIG. 3 is a schematic view of a filtering dam block unit according to the present invention;

FIG. 4 is a schematic structural view of the plunger unit of the present invention;

FIG. 5 is a schematic view of the construction of the adapter sleeve of the present invention;

fig. 6 is a schematic structural view of the reinforcing mesh of the present invention;

FIG. 7 is an enlarged view of area A of FIG. 3;

FIG. 8 is a schematic view of a filter bag of the present invention.

Detailed Description

As shown in fig. 1 to 8, a wetland ecological ditch construction system for purifying farmland tail water comprises an ecological flow channel 1, a wet area 2 and an outflow area 3 which are arranged under the ecological flow channel 1, wherein the side surface of the ecological flow channel 1 is communicated with the farmland tail water through an artificial drainage branch channel 4, and a filtering dam structure 5 is arranged on the ecological flow channel 1;

filter dam structure 5 and include many inserted bar units 6, many inserted bar units 6 insert the bottom of ecological runner 1, be equipped with reinforcing bar net 7 between the adjacent inserted bar unit 6, reinforcing bar net 7 is woven by the reinforcing bar and is formed, inserting bar unit 6 is connected through the mechanism that connects soon to the both sides of reinforcing bar net 7, a plurality of inserted bar units 6 and reinforcing bar net 7 are connected side by side and are formed filter dam block unit 8, filter dam structure 5 includes filter dam block unit 8 more than two, form filtration space 9 between the adjacent filter dam block unit 8, pack filtration unit in filtration space 9, filtration unit is fixed by the filter dam block unit 8 of both sides. The filtering unit comprises a plurality of filtering bags 10, and the filtering bags 10 are filled with sand or activated carbon.

Further, the root inserted bar unit 6 comprises a plurality of inserted bars 11 which are mutually connected, adjacent inserted bars 11 are connected through a connecting sleeve 12, the section of the connecting sleeve 12 is H-shaped, a partition plate 13 is arranged inside the connecting sleeve 12, two ends of the connecting sleeve 12 are provided with inserting holes 14, the end part of each inserted bar 11 extends into the corresponding inserting hole 14 of the connecting sleeve 12, and the end part of each connecting sleeve 12 is welded and fixed with the corresponding inserted bar 11.

The quick-connection mechanism comprises a plurality of quick-connection plates 15 arranged on two sides of the insertion rod 11 and fixing plates 16 arranged on two sides of the reinforcing mesh 7, connecting holes are formed in the quick-connection plates 15 and the fixing plates 16, and bolts 17 are inserted into the connecting holes to connect the quick-connection plates 15 and the fixing plates 16. The number of the quick-connection plates 15 on the side of the inserted rod 11 is the same as that of the fixing plates 16 on the side of the reinforcing mesh 7.

In addition, in order to facilitate timely purification, the filtering dam structure 5 is located at the downstream position of the artificial drainage branch passage 4.

Vegetation 18 are planted on two sides of the ecological flow channel 1, and the ecological purification effect is achieved through the vegetation 18.

This system sets up filtering dam structure 5 through the downflow position at artifical drainage subchannel 4, carry out purification treatment to the farmland tail water that artifical drainage subchannel 4 introduced through filtering dam structure 5, filtering dam structure 5 includes many inserted bar units 6, many inserted bar units 6 insert the bottom of ecological runner 1, be equipped with reinforcing bar net 7 between the adjacent inserted bar unit 6, reinforcing bar net 7 is woven by the reinforcing bar and is formed, inserted bar unit 6 is connected through the mechanism of connecing soon in reinforcing bar net 7's both sides, a plurality of inserted bar units 6 and reinforcing bar net 7 are connected side by side and are formed filtering dam block net unit 8, filtering dam structure 5 includes more than two filtering dam block net units 8, form filtration space 9 between the adjacent filtering dam block net unit 8, pack filtering unit in the filtration space 9, filtering unit is fixed by the filtering dam block net unit 8 of both sides. The filtration unit includes that a plurality of filter bags 10 cross, crosses filter bag 10 intussuseption grit or active carbon, and the farmland tail water that is introduced into ecological runner 1 flows into wetland district 2 after filtering through filter bag 10 in the filtering dam structure layer upon layer and stands, can be through the outflow district outflow by further use, and this system founds the convenience, is convenient for implement in rural area, and farmland tail water purification efficiency is high.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A wetland ecological ditch construction system for purifying farmland tail water comprises an ecological flow channel, a wet area and an outflow area, wherein the wet area and the outflow area are arranged at the downstream of the ecological flow channel;

2. The wetland ecological ditch construction system for farmland tail water purification as claimed in claim 1, wherein the filtration unit comprises a plurality of filtration bags filled with sand or activated carbon.

3. The wetland ecological ditch construction system for farmland tail water purification as claimed in claim 1, wherein the root inserted bar unit comprises a plurality of inserted bars which are connected with each other, adjacent inserted bars are connected with each other through a connecting sleeve, a partition is arranged inside the connecting sleeve, two ends of the connecting sleeve are provided with insertion holes, the end parts of the inserted bars extend into the insertion holes of the connecting sleeve, and the end parts of the connecting sleeve are welded and fixed with the inserted bars.

4. The wetland ecological ditch construction system for farmland tail water purification as claimed in claim 3, wherein the quick connection mechanism comprises a plurality of quick connection plates arranged at both sides of the insertion rod, and a fixed plate arranged at both sides of the reinforcing mesh, wherein the quick connection plates and the fixed plate are provided with connection holes, and bolts are inserted into the connection holes to connect the quick connection plates and the fixed plate.

5. The system for constructing wetland ecological ditches for farmland tail water purification, as claimed in claim 4, wherein the number of the quick connection plates on the side of the inserted bar is the same as the number of the fixing plates on the side of the reinforcing mesh.

6. The wetland ecological ditch construction system for farmland tail water purification as claimed in claim 3, wherein the cross section of the connection sleeve is H-shaped.

7. The system of claim 1, wherein the filter dam structure is located at a position downstream of the artificial drainage branch.

8. The system of claim 1, wherein the mesh reinforcement is woven from steel bars.

9. The wetland ecological ditch construction system for farmland tail water purification as claimed in claim 1, characterized in that vegetation is planted on both sides of the ecological flow channel.