CN111039400A

CN111039400A - Cold-proof ventilating heat-insulating subsurface flow type artificial wetland system

Info

Publication number: CN111039400A
Application number: CN201911138898.8A
Authority: CN
Inventors: 孙志华
Original assignee: Xinjiang Taiyuan Water Technology Services Co ltd
Current assignee: Xinjiang Taiyuan Water Technology Services Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-04-21

Abstract

The invention provides a cold-proof, ventilating and heat-insulating subsurface flow type artificial wetland system, which comprises an impermeable layer (2), a planting soil layer (3), a packing layer, a water inlet pipe (10) and a water outlet pipe (14), a perforated pipe (11) in the horizontal direction is arranged between the planting soil layer (3) and the packing layer, the perforated pipe (11) is a mesh pipe with holes at least on the upper part, a vent pipe (12) penetrating through the planting soil layer (3) is vertically and upwards arranged from the lower part of the packing layer, the vent pipe (12) is communicated with the perforated pipe (11), a valve (13) is arranged on the vent pipe (12), a supporting column (7) which is upright upwards is arranged at least around the upper part of the pool-shaped area, a heat-insulating layer is arranged on the supporting column (7), the heat-insulating layer comprises a tarpaulin body (6), wherein the tarpaulin body (6) is provided with a one-way vent hole (9) and a support column connecting fixing piece (8). Compared with the prior art, the invention not only has remarkable effect in the aspect of treating wastewater, but also can realize full-season operation in the north, thereby greatly improving the treatment efficiency of the artificial wetland.

Description

Cold-proof ventilating heat-insulating subsurface flow type artificial wetland system

Technical Field

The invention relates to the field of wastewater treatment of subsurface flow constructed wetlands, in particular to a cold-proof ventilating heat-preserving subsurface flow constructed wetland system.

Background

At present, a common undercurrent artificial wetland is a wastewater treatment system which is constructed by artificially building a water tank or a groove, paving an antiseep water-stop layer on the bottom surface, filling a filler and a soil layer with a certain depth, planting vascular plants such as reed, cattail and the like or aquatic plants with developed root systems, enabling wastewater to enter from a water inlet of the wetland, and contacting with a medium full of biological membranes and a plant root area in an undercurrent mode to obtain purification. However, the existing artificial wetland system is mainly suitable for the warm areas in the south, and generally only can be operated in spring, summer and autumn in the cold areas in the north, but is very long in winter in the northern areas with higher latitudes, so that the operation period of the artificial wetland system is greatly shortened, and the efficiency of the system is seriously reduced.

Therefore, the cold-proof, ventilating and heat-insulating subsurface flow type artificial wetland system capable of running all seasons is produced.

Disclosure of Invention

The invention aims to provide a cold-proof, ventilating and heat-preserving subsurface flow type artificial wetland system capable of running all seasons, which can effectively improve the running efficiency of the subsurface flow type artificial wetland.

The purpose of the invention is realized by the following technical scheme: including barrier (2), this barrier (2) contain side and base and form a pond form region that upper portion is open form, are the stratiform from the top down in pond form region and are equipped with planting soil layer (3) and packing layer in proper order, and pond form region is equipped with inlet tube (10) and drain pipe (14), its characterized in that:

a perforated pipe (11) in the horizontal direction is arranged between the planting soil layer (3) and the packing layer, the perforated pipe (11) is a mesh-shaped pipe at least the upper part of which is provided with holes, a vent pipe (12) penetrating through the planting soil layer (3) is vertically and upwards arranged from the lower part of the packing layer, the vent pipe (12) is communicated with the perforated pipe (11), a valve (13) is arranged on the vent pipe (12),

at least upright supporting columns (7) are arranged around the upper part of the pool-shaped area, a heat-insulating layer is arranged on the supporting columns (7), the heat-insulating layer comprises a tarpaulin body (6), and one-way vent holes (9) and supporting column connecting fixing parts (8) are arranged on the tarpaulin body (6).

Furthermore, the supporting column connecting and fixing piece (8) is an upward convex sleeve-shaped body on the tarpaulin body (6), and the sleeve-shaped body is hooped or sleeved at the upper end part of the supporting column (7) when in use.

Still further, the inner side of the sleeve body is preferably provided with a fastening piece (8-1), and the fastening piece is preferably one or the combination of a binding rope and an elastic hoop arranged at the inner side of the sleeve body.

Furthermore, the one-way vent hole (9) is preferably a soft tubular body, the soft tubular body forms an upward through hole on the tarpaulin body (6), and the through hole is in a flat folded state under a natural state, so that the upward through hole is in an unfavorable closed state.

Still further, it is preferred to arrange a heating device (15) in said pool-like area, said heating device (15) being arranged below the vegetation layer (3), said heating device (15) being an electric heating device or a heat exchange tube.

Further, the above packing layer is preferably composed of a sand filter layer (4) and a supporting layer (5), the sand filter layer (4) is on top, the supporting layer (5) is on bottom, the sand filter layer (4) is composed of small sand or gravel, and the supporting layer (5) is composed of cobblestones, lump stones or the like.

When the artificial wetland sewage treatment device is actually used, the sewage enters the interior of the subsurface flow artificial wetland through the water inlet pipe and is uniformly distributed, organic matters, nutrient substances such as nitrogen, phosphorus and the like and heavy metal substances in the sewage are purified under the combined action of an anaerobic biofilm method, purified plants, soil and plant roots and are discharged through the water discharge pipe, the purification purpose can be achieved, meanwhile, air enters the artificial wetland through the vent pipe and the perforated pipe to provide gas for the plant roots, the ventilation quantity can be adjusted through the valve on the vent pipe, and the internal temperature of the subsurface flow artificial wetland can be controlled.

Compared with the prior art, the invention not only has remarkable effect in the aspect of treating wastewater, but also can realize full-season operation in the north, thereby greatly improving the treatment efficiency of the artificial wetland.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention.

FIG. 2 is a schematic view of the structure of a perforated pipe in example 1 of the present invention.

Fig. 3 is a schematic structural view of the tarpaulin body in embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 5 is a schematic structural view of the tarpaulin body in embodiment 3 of the present invention.

Shown in the figure: 1. the water-proof and environment-friendly greenhouse comprises a purifying plant, 2 a seepage-proof layer, 3 a planting soil layer, 4 a sand filtering layer, 5 a supporting layer, 6 a tarpaulin body, 7 supporting columns, 8 supporting column connecting fixing parts, 8-1 fastening parts, 9 one-way vent holes, 10 water inlet pipes, 11 perforated pipes, 12 vent pipes, 13 valves, 14 drain pipes and 15 heating devices.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Example 1: reference is made to fig. 1 to 3, which are schematic structural views of embodiment 1 of the present invention. Comprises an impermeable layer 2, the impermeable layer 2 comprises side edges and bottom edges and forms a pool-shaped area with an open upper part, a planting soil layer 3 and a packing layer are sequentially arranged in the pool-shaped area from top to bottom in a layered manner, a water inlet pipe 10 and a water outlet pipe 14 are arranged at the packing layer at the lower part of the pool-shaped area, the water outlet pipe 14 is communicated with the water inlet pipe 10,

the planting soil layer 3 can be any base material suitable for plant growth, such as loam or similar growth medium.

The packing layer is an anaerobic purification layer and is composed of a sand filtering layer 4 and a bearing layer 5, the sand filtering layer 4 is arranged above the bearing layer 5, the sand filtering layer 4 is composed of small-grained gravel or gravel, the small-grained gravel or gravel is mung bean sand, river sand or mixed sand of mung bean sand and river sand with the grain size of 3mm or less, the bearing layer 5 is composed of cobblestones, rock blocks or similar objects, and the cobblestones and rock blocks are preferably 3-10 cm.

The packing layer not only provides the environment of growth and supports planting soil layer for anaerobic microorganisms, can also filter purification to quality of water betterly.

A perforated pipe 11 in the horizontal direction is arranged between the planting soil layer 3 and the packing layer, the perforated pipe 11 is a mesh-shaped pipe with holes at the upper part, a vent pipe 12 penetrating through the planting soil layer 3 is vertically and upwards arranged at the lower part of the packing layer, the vent pipe 12 is communicated with the perforated pipe 11, a valve 13 is arranged on the vent pipe 12,

the pool-shaped area is characterized in that upright supporting columns 7 are arranged around and in the upper portion of the pool-shaped area, a heat insulation layer is arranged on the supporting columns 7 and comprises a tarpaulin body 6, fabrics on the upper surface and the lower surface of the tarpaulin body 6 and a heat insulation layer clamped in the fabrics, the height of the tarpaulin is about 50-100cm, a one-way vent hole 9 and a supporting column connecting fixing part 8 are arranged on the tarpaulin body 6, the supporting column connecting fixing part 8 is an upward convex sleeve-shaped body on the tarpaulin body 6, and the sleeve-shaped body is hooped or sleeved at the upper end portions of the supporting columns 7 when in use.

The one-way vent hole 9 is a soft tubular body, for example, made of a plastic film or a rubber film material, the soft tubular body forms an upward through hole on the awning cloth body 6, the through hole is in a flat folded shape in a natural state, so that the upward through hole is in an open state, and when the air pressure in the awning is high, the gas in the awning can push the soft tubular body of the one-way vent hole 9 open to exhaust the air. Of course, the one-way vent 9 may be formed by other butterfly valves such as one-way ones.

The air layer in the tent cloth has low heat transfer efficiency and can prevent external low temperature from being conducted into the artificial wetland; the sewage generally has temperature, and the temperature of the sewage can be transmitted to an air layer through the ventilation pipeline; organic matters in the sewage can generate certain heat when being subjected to microbial treatment; heating facilities such as heating pipelines or electric tracing bands for heating can also increase the temperature of the interior of the artificial wetland, so that the normal survival of microorganisms in the content in winter is guaranteed.

The heating device 15 is arranged below the soil planting layer 3 in the pond-shaped area, the heating device 15 can be one of an electric heating device or a heat exchange tube, and can also be a mixed structure of two or more than two, and particularly, the heat exchange tube can fully utilize the waste heat of the tail gas of industrial facilities such as a thermal power plant to heat, so that the effect is better.

Example 2: referring to fig. 4, which is a schematic structural diagram of embodiment 2 of the present invention, the difference from embodiment 1 is that: the impermeable layer 2 along the side of the pool-shaped area is formed by the supporting layer 5 in the packing layer, and the frame layer is formed by cobblestones, stones or similar objects, so that the performance of the whole system can be improved due to better air permeability and water permeability. The perforated pipe 11 is a mesh pipe with holes on the whole body. The water inlet pipe 10 and the water outlet pipe 14 are both connected from the frame layer of the packing layer at the upper part of the pond-shaped area.

Example 3: referring to fig. 5, which is a schematic structural diagram of embodiment 3 of the present invention, the difference from

embodiment

1 or 2 is that: the inner side of the sleeve-shaped body of the tarpaulin body 6 is provided with a fastener 8-1, the fastener is an annular rope through hole at the inner side of the sleeve-shaped body, and a binding rope, a rubber band or a spring can be penetrated into the hole. Two binding ropes can also be directly decorated on the inner side of the sleeve body.

The above description is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the inventive concept of the present invention, and the invention also falls into the protection scope of the present invention.

Claims

1. The utility model provides a cold-proof heat retaining subsurface flow formula constructed wetland system of ventilating, includes barrier layer (2), and this barrier layer (2) contain side and base and form a upper portion and be open form pond form region, are the stratiform from top to bottom in pond form region and are equipped with planting soil layer (3) and packing layer in proper order, and pond form region is equipped with inlet tube (10) and drain pipe (14), its characterized in that:

a perforated pipe (11) in the horizontal direction is arranged between the planting soil layer (3) and the packing layer, the perforated pipe (11) is a mesh-shaped pipe at least the upper part of which is provided with holes, a vent pipe (12) penetrating through the planting soil layer (3) is vertically and upwards arranged from the lower part of the packing layer, the vent pipe (12) is communicated with the perforated pipe (11), and a valve (13) is arranged on the vent pipe (12);

2. The cold-proof ventilation and heat-preservation subsurface flow type artificial wetland system according to claim 1, characterized in that: the supporting column connecting and fixing piece (8) is a sleeve-shaped body which is convex upwards and arranged on the tarpaulin body (6).

3. The cold-proof ventilation and heat-preservation subsurface flow type artificial wetland system according to claim 2, characterized in that: the inner side of the sleeve body is provided with a fastener (8-1), and the fastener is preferably one or the combination of two of a binding rope or an elastic hoop at the inner side of the sleeve body.

4. The cold-proof, ventilating and heat-insulating subsurface flow constructed wetland system of claim 1, 2 or 3, which is characterized in that: the one-way vent hole (9) is a soft tubular body, and the soft tubular body forms an upward through hole on the tarpaulin body (6).

5. The cold-proof, ventilating and heat-insulating subsurface flow constructed wetland system of claim 1, 2 or 3, which is characterized in that: the pond-shaped area is internally provided with a heating device (15), the heating device (15) is arranged below the planting soil layer (3), and the heating device (15) is an electric heating device or a heat exchange tube.

6. The cold-proof ventilation and heat-preservation subsurface flow type artificial wetland system according to claim 4, characterized in that: the pond-shaped area is internally provided with a heating device (15), the heating device (15) is arranged below the planting soil layer (3), and the heating device (15) is an electric heating device or a heat exchange tube.

7. The cold-proof, ventilating and heat-insulating subsurface flow constructed wetland system of claim 1, 2 or 3, which is characterized in that: the packing layer is composed of a sand filtering layer (4) and a bearing layer (5), the sand filtering layer (4) is arranged above the bearing layer (5) below the bearing layer, the sand filtering layer (4) is composed of small-grained gravel or gravel, and the bearing layer (5) is composed of cobblestones, blockstones or similar objects.

8. The cold-proof ventilation and heat-preservation subsurface flow type artificial wetland system according to claim 4, characterized in that: the packing layer is composed of a sand filtering layer (4) and a bearing layer (5), the sand filtering layer (4) is arranged above the bearing layer (5) below the bearing layer, the sand filtering layer (4) is composed of small-grained gravel or gravel, and the bearing layer (5) is composed of cobblestones, blockstones or similar objects.

9. The cold-proof ventilation and heat-preservation subsurface flow type artificial wetland system according to claim 5, characterized in that: the packing layer is composed of a sand filtering layer (4) and a bearing layer (5), the sand filtering layer (4) is arranged above the bearing layer (5) below the bearing layer, the sand filtering layer (4) is composed of small-grained gravel or gravel, and the bearing layer (5) is composed of cobblestones, blockstones or similar objects.

10. The cold-proof ventilation and heat-preservation subsurface flow type artificial wetland system according to claim 6, characterized in that: the packing layer is composed of a sand filtering layer (4) and a bearing layer (5), the sand filtering layer (4) is arranged above the bearing layer (5) below the bearing layer, the sand filtering layer (4) is composed of small-grained gravel or gravel, and the bearing layer (5) is composed of cobblestones, blockstones or similar objects.