1. The utility model provides a can handle wetland system of domestic sewage, rainwater which characterized in that: including wetland structure and sewage treatment plant, the wetland structure include that a plurality of passes through the bounding wall around planting district, a plurality of setting planting frame in the bounding wall, setting planting matrix in planting the frame and planting the wetland plant on planting the matrix that forms, sewage treatment plant include according to rivers order communicate in proper order and set up at subaerial grid pond, equalizing basin, hydrolysis-acidification pond, contact oxidation pond, MBR membrane cisterna, clean water basin, the grid pond in be provided with a plurality of grid, be connected with the elevator pump between equalizing basin and the hydrolysis-acidification pond, be connected with the drain pump between MBR membrane cisterna and the clean water basin, planting district and grid pond pass through the pipeline intercommunication, pass through the pipeline intercommunication between clean water basin and the planting district.

2. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: the planting area is a polygonal area, the corner of the planting area is 90 degrees, and the planting frame is in a cuboid shape.

3. The wetland system capable of treating domestic sewage and rainwater according to claim 2, wherein: the planting frame wherein be provided with the vertical arch of length direction on two relative sides, be provided with the vertical recess of length direction on two relative sides in the planting frame other, adjacent planting frame is through protruding and recess cooperation installation interconnect, the bounding wall on be provided with can with protruding cooperation installation the bounding wall recess.

4. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: the planting frame is made of water permeable materials.

5. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: two adjacent planting areas are communicated through a pipeline, and the coaming is made of a water-proof material.

6. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: and a return pipeline is connected between the MBR membrane tank and the hydrolysis acidification tank.

7. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: the MBR membrane tank is connected with a sludge concentration tank, and a sludge pump is connected between the MBR membrane tank and the sludge concentration tank.

8. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: the contact oxidation pond in be provided with biological filler, the MBR membrane cisterna is connected with charge device.

9. The wetland system capable of treating domestic sewage and rainwater according to claim 1, wherein: an ultraviolet sterilizer is arranged at the outlet of the sterilizing tank, the contact oxidation tank is connected with a fan, and the drainage pump is connected with a back flush pipeline.

Background

The rainwater wetland purifies rainwater by utilizing the functions of physics, aquatic plants, microorganisms and the like, is an efficient runoff pollution control facility, and can greatly save the labor and time cost. However, the rainwater wetland under the prior art has the problems of high construction cost, limited construction space and region, high maintenance cost, incapability of recycling and the like. The sewage treatment is a key process for water purification, and the less the labor participation of the sewage treatment, the more the labor cost and the material cost can be saved. The traditional sewage treatment equipment at present has the following defects:

1. the solid-liquid separation efficiency is poor;

2. after the solid is separated, the solid waste in the equipment is troublesome to clean;

3. the impact resistance is poor when the amount of the inflow water is largely changed in a short time.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a wetland system capable of treating domestic sewage and rainwater and a using method thereof, which are used for combining sewage treatment with a rainwater wetland, utilizing the treated sewage to provide water for the rainwater wetland, improving the utilization rate of water resources, further purifying the water quality by utilizing the rainwater wetland and improving the purification efficiency.

The invention is realized by the following technical scheme: the utility model provides a can handle wetland system of domestic sewage, rainwater, includes wetland structure and sewage treatment plant, the wetland structure include that a plurality of passes through the bounding wall around planting district, the planting frame of a plurality of setting in the bounding wall, setting planting matrix and planting the wetland plant on planting the matrix of formation in planting the frame of formation, sewage treatment plant include according to rivers order communicate in proper order and set up at subaerial grid pond, equalizing basin, hydrolysis-acidification pond, contact oxidation pond, MBR membrane cisterna, clean water basin, the grid pond in be provided with a plurality of grid, be connected with the elevator pump between equalizing basin and the hydrolysis-acidification pond, be connected with the drain pump between MBR membrane cisterna and the clean water basin, planting district and grid pond pass through the pipeline intercommunication, through the pipeline intercommunication between clean water basin and the planting district.

Furthermore, in order to better realize the invention, the planting area is a polygonal area, the corner of the planting area is 90 degrees, and the planting frame is in a cuboid shape.

Furthermore, in order to better realize the invention, two opposite side surfaces of the planting frame are provided with protrusions vertical to the length direction, the other two opposite side surfaces of the planting frame are provided with grooves vertical to the length direction, adjacent planting frames are installed and connected with each other through the protrusions and the grooves in a matched mode, and the coaming is provided with coaming grooves capable of being installed in a matched mode with the protrusions.

Furthermore, in order to better realize the invention, the planting frame is made of water permeable materials.

Furthermore, in order to better realize the method, the two adjacent planting areas are communicated through a pipeline, and the coaming is made of a waterproof material.

Furthermore, in order to better realize the invention, a return pipeline is connected between the MBR membrane tank and the hydrolysis acidification tank.

Furthermore, in order to better realize the invention, the MBR membrane tank is connected with a sludge concentration tank, and a sludge pump is connected between the MBR membrane tank and the sludge concentration tank.

Furthermore, in order to better realize the invention, biological fillers are arranged in the contact oxidation pond, and the MBR membrane pond is connected with a drug adding device.

Furthermore, in order to better realize the invention, an ultraviolet sterilizer is arranged at the outlet of the sterilizing tank, the contact oxidation tank is connected with a fan, and the drainage pump is connected with a back flush pipeline.

The beneficial effect that this scheme obtained is: this scheme will plant the frame as basic unit, have convenient transportation, the installation, advantages such as construction, can not receive the region restriction during the construction, and be convenient for come the structure of combination formation different shapes as required or adaptation topography, adopt the grid can improve solid-liquid separation efficiency, avoid large granule fixed material to enter into subsequent treatment facility and cause the jam or lead to equipment destruction, utilize the equalizing basin can regard as the intake pressure that the buffering reduces subsequent equipment, and adjust quality of water, reduce impurity concentration, and can utilize the intake water pressure that promotes the follow-up equipment of pump control system.

Drawings

FIG. 1 is a schematic structural diagram of a wetland structure;

FIG. 2 is a schematic structural view of a planting frame;

FIG. 3 is a schematic view of the sewage treatment apparatus;

FIG. 4 is a schematic view of the connection between the wetland structure and the sewage treatment plant;

the method comprises the following steps of 1-coaming, 2-planting frame, 3-protrusion, 4-groove, 5-pipeline, 6-locking sleeve, 7-pulling ring, 8-grating tank, 9-regulating tank, 10-, 11-hydrolytic acidification tank, 12-contact oxidation tank, 13-MBR membrane tank, 14-flowmeter, 15-drainage pump, 16-back flushing pipeline, 17-clean water tank, 18-sludge concentration tank, 19-ultraviolet sterilizer, 20-dosing device and 21-blower.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1:

as shown in fig. 1, 2, 3 and 4, in the embodiment, the wetland system capable of treating domestic sewage and rainwater comprises a wetland structure and a sewage treatment device, the wetland structure comprises a plurality of planting areas formed by surrounding of enclosing plates, a plurality of planting frames arranged in the enclosing plates, planting matrixes arranged in the planting frames and wetland plants planted on the planting matrixes, the sewage treatment device comprises a grating tank, an adjusting tank, a hydrolysis acidification tank, a contact oxidation tank, an MBR membrane tank and a clean water tank which are sequentially communicated according to the water flow sequence and are arranged below the ground, a plurality of grids are arranged in the grid tank, a lifting pump is connected between the adjusting tank and the hydrolysis acidification tank, a drainage pump is connected between the MBR membrane tank and the clean water tank, the planting area is communicated with the grating pool through a pipeline, and the clean water pool is communicated with the planting area through a pipeline.

The sewage that needs to handle enters into grid pond 8 in, utilizes the grid in the grid pond 8 to carry out prefiltration, makes the separation of large granule solid to this working pressure who reduces follow-up equipment, and avoid large granule impurity to cause the jam or destroy to follow-up equipment. Can utilize equalizing basin 9 to hold water as the cistern is short for a short time to the water pressure of intaking of control follow-up equipment can add the clear water in order to reduce impurity concentration as required in equalizing basin 9, utilizes and hydrolyzes among the 11 rivers water macromolecules of acidizing pond and most organic matter and decomposes, reduces partial COD. Utilize the contact oxidation pond 12 to carry out preliminary biochemical treatment, the play water of contact oxidation pond 12 gets into MBR membrane cisterna 13 and carries out degree of depth biochemical treatment, in this embodiment, MBR membrane cisterna 13 in be provided with biofilm carrier, be attached to the one deck biomembrane on biofilm carrier, the biomembrane adsorbs, absorbs, degrades the organic matter of aquatic to make the fruit organic matter in the waste water fully purified. The water filtered by the MBR membrane tank 13 is pumped into the clean water tank 17 by the drain pump 15. The water in the clean water tank 17 can be supplied to the wetland structure.

When the wetland structure is constructed, a planting area is formed by surrounding a plurality of enclosing plates, and the planting frame is arranged in the planting area. According to appearance requirements or terrain limitation, the coaming can be used for surrounding to form various regular or irregular shapes, the planting frames are stacked in the planting area as basic units, and various shapes can also be formed. The planting frame and the planting matrix in the planting frame can be prefabricated, so that the planting frame does not need to be manufactured on site, can be conveniently and quickly put into use after being transported to a position, and is favorable for improving the construction efficiency.

The coaming can be constructed above ground and below ground as required so that the upper surface of the coaming is higher than ground, flush with ground or lower than ground to meet design requirements.

The water provided by the clean water tank 17 can be accumulated in the planting area to simulate the ecological environment of the wetland, so that the wetland plants can grow normally. The wetland plants can be used for purifying rainwater and water provided by the clean water tank 17 and absorbing nitrogen, phosphorus and sulfur in the water. The planting area can be communicated with a reservoir or a water storage tank, and purified water is stored, so that the effect of saving water can be achieved.

In this embodiment, the grating tank 8, the adjusting tank 9, the hydrolysis-acidification tank 11, the contact oxidation tank 12, the MBR membrane tank 13, the clean water tank 17 and other structures are arranged underground, so that the system can be prevented from occupying too much above-ground space, sufficient above-ground space is reserved for other structures and buildings, and the system is suitable for places such as gardens, green belts, animal and plant parks, communities, commercial streets and the like. The drain pump 15 and the lift pump 10 can be connected with a controller for remote control.

Example 2:

on the basis of the above embodiment, in this embodiment, the planting area is a polygonal area, the corner of the planting area is 90 °, and the planting frame is a cuboid. Therefore, the outer planting frame is attached to the enclosing plate, the planting frame is conveniently and stably and tidily installed in the planting area, and the space utilization rate in the planting area is improved. The planting frame is convenient for unified production.

Example 3:

on the basis of the above embodiment, in this embodiment, the planting frame includes a hollow frame body and a planting substrate disposed in the frame body, and the frame body has a rectangular parallelepiped structure.

During construction, planting matrixes are placed in the planting frames, plants are planted in the planting matrixes, and the planting frames are placed in an array according to design requirements. Because plant the frame and be the cuboid type, when needs plant the intensive putting of frame, can make adjacent planting frame laminating, reduce or avoid appearing the clearance between the adjacent planting frame, improve space utilization, can increase the density of plant. When the planting frame is transported, the planting frame can be tightly attached, so that the adjacent planting frames are prevented from being collided, the utilization rate of a transportation space is improved, and the transportation efficiency of the planting frame can be improved.

In this embodiment, two opposite sides of the frame body are respectively provided with a protrusion which is vertically arranged, and two other side surfaces of the frame body are provided with grooves which can be installed in a matching manner with the protrusions. The adjacent planting frames can be mutually connected by utilizing the matching installation of the protrusions and the grooves, the overall stability of the planting frames is improved, the plants are not easy to deform due to external force after being installed, and the plants can be arranged in order. And the mounted planting frames can be used as positioning references to position the adjacent planting frames, and multiple scribing is not needed on a construction site, so that the construction difficulty is reduced, and the construction efficiency is improved.

In this embodiment, the arch can be designed into the T style of calligraphy, corresponding recess is with designing into the T style of calligraphy, after adjacent planting frame passes through arch and recess cooperation installation, utilizes T font structure can prevent arch and recess to break away from each other, and improves the joint strength of adjacent planting frame.

The upper surface of the frame body is provided with a plurality of positioning lugs, and the lower surface of the frame body is provided with a plurality of positioning grooves which can be matched with the positioning lugs for installation. In order to provide more growth spaces for plant roots, the planting frame can adopt the stacked mode of multilayer to increase the volume, the planting frame bottom of the bottom can the back cover, also can not the back cover, the bottom of middle and the planting frame of the superiors does not the back cover in order to keep with the communicating state of lower floor planting frame. Utilize positioning lug and positioning groove's cooperation, can make things convenient for the multilayer to plant frame quick location, installation to two-layer planting frame improves the holistic stability of planting the frame along the mutual removal of horizontal direction about the restriction.

In this embodiment, the inner side surface of the frame body is provided with a plurality of vertically arranged locking sleeves. After the upper and lower two-layer planting frame is positioned and assembled, the locking sleeves on the upper and lower two-layer planting frame are just aligned, the locking pins, the locking nails and other structures are inserted to lock the upper and lower two-layer planting frame, so that the upper and lower two-layer planting frame are prevented from moving relatively and being staggered under the action of external force, the overall stability of the planting frame is improved, and the normal growth of plants is ensured.

In this embodiment, the locking sleeve setting corner department in planting the frame to planting the adjacent internal surface of frame and all keeping connected, utilizing the locking sleeve to be connected with planting the frame internal surface, can making the locking sleeve play the effect of supporting to the internal surface of planting the frame, improve the intensity of planting frame self, be favorable to preventing to plant the frame by extrusion deformation.

The upper surface of the frame body is provided with a lifting ring. Utilize the lifting ring as the stress point, be convenient for upwards mention planting the frame to take out a certain individual planting frame when needs are changed, are maintained, utilize the lifting ring also to be convenient for be connected with hook, rope isotructure, so that remote operation.

In this embodiment, the lifting ring is connected with a threaded rod, and the threaded rod is in threaded connection with the frame body. When the multilayer planting frames are arranged, the lifting ring is connected to the planting frame on the topmost layer so as to avoid unnecessary gaps between the planting frames due to the fact that the lifting ring is arranged between the two layers of planting frames.

Example 4:

on the basis of the above embodiment, in this embodiment, the planting frame is made of a water permeable material. Therefore, the water can be circulated among the planting frames, and the influence on the normal growth of the plants due to the formation of dead water is avoided. In rainy season, the utility model also facilitates the rapid circulation of the excess water to avoid siltation in the planting area.

In this embodiment, the upper surface of planting frame be provided with the lift ring to this structure such as conveniently utilizing couple, rope is connected with the lift ring, thereby conveniently will plant the frame and upwards lift and take out.

Example 5:

on the basis of the above embodiments, in the present embodiment, the planting substrate includes a plant growth substrate and a microorganism substrate. The microorganism substrate is internally provided with microorganisms for purifying nitrogen, phosphorus and/or sulfur. The plant growth substrate is used for providing a planting basis for plants, and the microorganism substrate is used for culturing microorganisms, so that the microorganisms also participate in the absorption of nitrogen, phosphorus and sulfur, the treatment efficiency of the whole system on nitrogen, phosphorus and sulfur is improved, and partial nutrients are provided for the growth of the plants.

Example 6:

on the basis of the above embodiment, in this embodiment, the two adjacent planting areas are communicated through a pipeline. Therefore, redundant moisture can circulate among different planting areas, and rainwater collected by the planting areas can be conveniently gathered and stored. When different planting areas are positioned at different heights, the moisture in the higher planting areas can be drained downwards quickly. The pipeline can be provided with a switch so as to control the on-off of the pipeline.

The coaming is made of waterproof materials. Therefore, the planting area has a certain water storage function to maintain the wetland environment.

Example 7:

on the basis of the above embodiment, in this embodiment, a return pipe is connected between the MBR membrane tank 13 and the hydrolysis acidification tank 11. Utilize the return line can be with leading-in hydrolysis-acidification tank 11 with multiple loop filtration again through MBR membrane cisterna 13 filterable water, be favorable to making the impurity or the pollutant of aquatic obtain the abundant filtration, improve the quality of water after the filtration. The backflow pipeline can be provided with a backflow pump, and the backflow pump is used for controlling the circulation of water flow. The reflux pump can be connected to a controller for remote control.

Example 8:

on the basis of the above embodiment, in this embodiment, the MBR membrane tank 13 is connected to a sludge concentration tank 18, and a sludge pump is connected between the MBR membrane tank 13 and the sludge concentration tank 18. The sludge pump is used for pumping the sludge generated by the MBR membrane tank 13 into the sludge concentration tank 18, so that the phenomenon that the MBR membrane tank 13 is blocked by the sludge to cause the efficiency reduction of the MBR membrane tank 13 is avoided.

Example 9:

on the basis of the above embodiments, in this embodiment, the MBR membrane tank 13 is connected with a chemical adding device 20. Therefore, the needed medicament is conveniently added to the MBR membrane tank 13 through the medicament adding device 20, and the activity and the filtering efficiency of the microorganisms in the MBR membrane tank 13 are ensured. In this embodiment, the pipeline between the dosing device 20 and the MBR membrane tank 13 can be provided with a dosing pump to control the efficiency of the fake medicines. The tender gully rain controller of dosing pump connect so that carry out remote control.

Example 10:

on the basis of the above embodiment, in this embodiment, the outlet of the drain pump 15 is provided with the ultraviolet sterilizer 19. Thus, the clear water discharged from the drain pump 15 can be sterilized by the ultraviolet sterilizer 19, and the water quality can be further improved.

Example 11:

on the basis of the above embodiment, in the present embodiment, the contact oxidation pond 12 is connected with a fan 21. The blower 21 can be used for inputting fresh air into the contact oxidation pond 12 to supplement oxygen required by the contact oxidation pond 12, and a certain cooling effect can be achieved.

Example 12:

in addition to the above embodiments, in the present embodiment, the drain pump 15 is connected to a back flush pipe 16. The drain pump 15 pumps water to the inside of the system through the back flush pipeline 16, and the drain pump 15 and the pipeline communicated with the drain pump are cleaned firmly, so that the drain pump 15 and the pipeline communicated with the drain pump are prevented from being blocked due to long-term use.

In this embodiment, other undescribed contents are the same as those in the above embodiment, and thus are not described again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.