CN211283846U

CN211283846U - Constructed wetland system with wet return

Info

Publication number: CN211283846U
Application number: CN201922016923.7U
Authority: CN
Inventors: 丁聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-18
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses an artificial wetland system with a return pipe, which comprises a sewage pool and a wetland pool, wherein a sewage pump is arranged in the sewage pool, a water distribution pipe is arranged above the wetland pool and is communicated with the sewage pump, filler is filled in the wetland pool, a horizontal return pipe is arranged above the filler, the distance between the return pipe and the upper surface of the filler is 4-8cm, a plurality of return holes are arranged on the side surface of the return pipe, and one end of the return pipe is communicated with the sewage pool; the utility model discloses a be provided with the back flow, when the water distribution volume great has more sewage to accumulate when the soil horizon, when the height of highly surpassing the backward flow hole lower part of sewage, sewage can follow the back flow and flow back to the effluent water sump to avoid influencing the sewage treatment effect in wetland pond because of the water distribution volume is great, simple structure handles the treatment effect preferred.

Description

Constructed wetland system with wet return

Technical Field

The utility model relates to an artificial wetland system with wet return.

Background

Artificial wetlands are one of the most important types of sewage treatment and have been widely used since the 70 s of the 20 th century. The artificial wetland is a technology for treating sewage and sludge by using the physical, chemical and biological triple synergistic action of soil, artificial medium, plants and microorganisms in the process of flowing along a certain direction by controllably dosing the sewage and the sludge onto the artificially constructed wetland on the ground similar to a marshland which is artificially constructed and controlled to operate. Human mechanisms of action include adsorption, retention, filtration, redox, precipitation, microbial decomposition, transformation, plant masking, residue accumulation, transpiration moisture and nutrient absorption, and the action of various animals.

When the water distribution quantity of the existing artificial wetland is large, the speed of sewage flowing through the wetland tank is high due to a large amount of sewage, so that the sewage treatment effect of the wetland tank is influenced

Therefore, an artificial wetland system with a water return pipe is particularly needed to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art, providing an artificial wetland system with a water return pipe, which can avoid influencing the sewage treatment effect of a wetland pool due to the large water distribution quantity.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an artificial wetland system with wet return, includes effluent water sump and wetland pond, be provided with the sewage pump in the effluent water sump, wetland pond top is provided with the water distributor, the water distributor is linked together with the sewage pump, the wetland pond is buried and is filled with filler, the top of filler is provided with the horizontally wet return, the wet return is 4-8cm with the distance of filler upper surface, the side of wet return is provided with a plurality of backward flow holes, the one end and the effluent water sump of wet return are linked together.

In order to further realize the utility model discloses, the water distribution pipe includes that the water distribution is responsible for and a plurality of water distribution branch pipe, the water distribution is responsible for and is connected with the sewage pump through the pipeline, the water distribution is responsible for the top that the level set up and is located the wetland pond, the water distribution branch pipe sets up perpendicularly and is responsible for the bottom and is responsible for with the water distribution in the water distribution and is linked together.

In order to further realize the utility model discloses, a plurality of water distribution branch pipes are responsible for along the water distribution length direction evenly distributed.

In order to further realize the utility model discloses, pack from last to including soil horizon, sand bed and gravel layer down in proper order.

In order to further realize the utility model, the thickness of soil horizon is 12-20cm, the thickness of sand bed is 15-25cm, the thickness of gravel layer is 20-30 cm.

In order to further realize the utility model, the middle part of the gravel layer is provided with an activated carbon layer.

In order to further realize the utility model, the thickness of the active carbon layer is 5-8 cm.

In order to further realize the utility model discloses, the length direction evenly distributed of backward flow hole along the wet return.

Advantageous effects

The utility model discloses a be provided with the wet return, when the great more sewage accumulation that has of water distribution volume when the soil horizon, when the height of highly surpassing the backward flow hole lower part of sewage, sewage can follow the backward flow pipe and flow back to the effluent water sump to avoid influencing the sewage treatment effect in wetland pond because of the water distribution volume is great, simple structure, treatment effect preferred.

Drawings

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

description of reference numerals:

1. a sewage tank; 11. a sewage pump; 2. a wetland pool; 21. a soil layer; 22. a sand layer; 23. a gravel layer; 24. an activated carbon layer; 25. a water outlet pipe; 3. a water distribution pipe; 31. a water distribution main pipe; 32. a water distribution branch pipe; 4. a water return pipe; 41. and (4) a backflow hole.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and only schematically illustrate the basic structure of the invention.

Example one

As shown in fig. 1, the utility model discloses constructed wetland system with wet return includes effluent water sump 1 and wetland pond 2, wherein:

the sewage tank 1 is used for storing untreated sewage, and a sewage pump 11 is arranged in the sewage tank 1.

The water distribution pipe 3 is arranged above the wetland pool 2, the water distribution pipe 3 is communicated with the sewage pump 11, the water distribution pipe 3 comprises a main water distribution pipe 31 and a plurality of branch water distribution pipes 32, the main water distribution pipe 31 is connected with the sewage pump 11 through a pipeline, the main water distribution pipe 31 is horizontally arranged and positioned above the wetland pool 2, the branch water distribution pipes 32 are uniformly distributed along the length direction of the main water distribution pipe 31, and the branch water distribution pipes 32 are vertically arranged at the bottom of the main water distribution pipe 31 and are communicated with the main water distribution pipe 31.

The wetland pool 2 is filled with filler which comprises a soil layer 21, a sand layer 22 and a gravel layer 23 from top to bottom in sequence, a plurality of plants can be planted on the soil layer 21, meanwhile, an attachment surface is provided for microorganisms, the thickness of the soil layer 21 is 12-20cm, the thickness of the sand layer 22 is 15-25cm, the thickness of the gravel layer 23 is 20-30cm, the middle part of the gravel layer 23 is provided with an activated carbon layer 24, the thickness of the activated carbon layer 24 is 5-8cm, the activated carbon can effectively adsorb sewage by the activated carbon layer 24, meanwhile, as the activated carbon layer is arranged above the gravel layer, more ammonification and nitrification bacteria exist in the gravel layer, when sewage flows through the activated carbon layer, under the appropriate conditions of anaerobic environment, additionally increased carbon concentration and the like, the quantity and the effect of denitrifying bacteria flora in the constructed wetland tank can be improved, so that the denitrification efficiency of the constructed wetland system is improved.

The top of soil horizon 21 is provided with horizontally wet return 4, wet return 4 is 4-8cm with the distance of soil horizon 21 upper surface, the both sides of wet return 4 are provided with a plurality of backward flow holes 41, backward flow hole 41 is along the length direction evenly distributed of wet return 4, the one end and the effluent water sump 1 of wet return 4 are linked together, through being provided with the wet return, when the great more sewage accumulation that has of water distribution volume is on soil horizon, when the height that highly surpasses the backward flow hole lower part of sewage, sewage can follow the backward flow and return to the effluent water sump, thereby avoid influencing the sewage treatment effect in wetland pond because of the water distribution volume is great, moreover, the steam generator is simple in structure, the treatment effect preferred.

The side surface of the lower part of the wetland pool 2 is provided with a water outlet pipe 25.

The above is only the preferred embodiment of the present invention, the present invention is not limited to the above embodiment, there may be local minor structural modification in the implementation process, if it is right that various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, and belong to the claims and the equivalent technical scope of the present invention, then the present invention is also intended to include these modifications and variations.

Claims

1. The utility model provides an artificial wetland system with wet return, includes effluent water sump and wetland pond, be provided with the sewage pump in the effluent water sump, wetland pond top is provided with the water distributor, the water distributor is linked together with the sewage pump, the wetland pond is the landfill has the filler, its characterized in that, the top of filler is provided with the horizontally wet return, the wet return is 4-8cm with the distance of filler upper surface, the side of wet return is provided with a plurality of backward flow holes, the one end and the effluent water sump of wet return are linked together.

2. The constructed wetland system with the water return pipe according to claim 1, wherein the water distribution pipe comprises a main water distribution pipe and a plurality of branch water distribution pipes, the main water distribution pipe is connected with a sewage pump through a pipeline, the main water distribution pipe is horizontally arranged and positioned above the wetland pool, and the branch water distribution pipes are vertically arranged at the bottom of the main water distribution pipe and communicated with the main water distribution pipe.

3. The constructed wetland system with the water return pipe according to claim 2, wherein the plurality of water distribution branch pipes are uniformly distributed along the length direction of the water distribution main pipe.

4. The constructed wetland system with the water return pipe according to claim 1, wherein the filler comprises a soil layer, a sand layer and a gravel layer from top to bottom.

5. The constructed wetland system with a water return pipe according to claim 4, wherein the thickness of the soil layer is 12-20cm, the thickness of the sand layer is 15-25cm, and the thickness of the gravel layer is 20-30 cm.

6. The constructed wetland system with the water return pipe according to claim 4, wherein an activated carbon layer is arranged in the middle of the gravel layer.

7. The constructed wetland system with the water return pipe according to claim 6, wherein the thickness of the activated carbon layer is 5-8 cm.

8. The constructed wetland system with a water return pipe according to claim 1, wherein the return holes are uniformly distributed along the length direction of the water return pipe.