CN111470636B

CN111470636B - Assembled landscape sewage purification device suitable for dispersed sewage treatment facility discharge port

Info

Publication number: CN111470636B
Application number: CN202010486258.2A
Authority: CN
Inventors: 陈娟; 王沛芳; 王超; 孙胜浩
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-10-08
Anticipated expiration: 2040-06-01
Also published as: CN111470636A

Abstract

The invention provides an assembly type landscape sewage purification device suitable for a dispersed sewage treatment facility discharge port, which structurally comprises a fixed support, a submerged plant support frame, a submerged plant box, a cross support frame, a self-lifting emergent aquatic plant floating bed, a carrier purification box, a porous material, a cross water distribution pipe, a top vegetation support frame, a fixed rod, an externally-distributed vegetation bag, a fixed ring, vegetation bag plants, a top vegetation disc and a movable lantern ring; when the device is installed, the submerged plant box, the self-lifting emergent plant floating bed, the carrier purifying box, the cross-shaped water distribution pipe, the outer plant growing bags and the top plant tray are sequentially assembled on the fixed support; the invention has high efficiency of removing pollutants from the water outlet of the drain outlet, the drain pipe is hidden in the device, and various plants are reasonably matched to create good landscape effect; the assembly is simple, the installation is flexible and simple, the dirt purifying material can be recycled and freely replaced, the occupied area is small, the construction cost is low, and the large-scale popularization and application can be realized.

Description

Assembled landscape sewage purification device suitable for dispersed sewage treatment facility discharge port

Technical Field

The invention relates to an assembly type landscape sewage purification device suitable for a dispersed sewage treatment facility discharge port, and belongs to the technical field of water pollution treatment.

Background

Compared with centralized sewage treatment, the distributed sewage treatment mode has unique advantages in vast rural areas with wide regions, dispersed population and large investment in pipe network laying. In recent years, small-sized distributed domestic sewage treatment facilities play an important role in related projects for improving rural human-living environments and regional water environments. However, because the quality and quantity of domestic sewage of rural residents are unstable, the treatment capacity of small facilities is limited, the sewage purification capacity is easily influenced by the environment, and the quality of the discharged water of sewage treatment facilities often faces the problem of overproof pollutants such as nitrogen and phosphorus. Meanwhile, in order to adapt to the dispersion characteristics of rural resident households, the dispersed sewage treatment facilities generally follow the principle of 'on-site treatment and near discharge', the effluent of the facilities is discharged to ditches, rivers, lakes and ponds nearby, the tubular discharge openings are numerous and directly exposed, and the regional water environment quality and the landscape effect are directly influenced. Therefore, aiming at the water outlet of the distributed sewage treatment facility, the improvement and the technical research and development are carried out on the premise of considering both the decontamination performance and the landscape performance, and the method has important significance for comprehensively improving the regional water environment quality.

At present, the water quality improvement method for the effluent of the sewage treatment facility mainly comprises the steps of purifying the sewage by using an artificial wetland or adding an advanced treatment unit (such as a resin fractionation technology, an ultraviolet analysis technology and an ultrafiltration membrane fractionation and filtration technology) and the like. Although the methods are widely applied to the effluent upgrading process of a centralized sewage treatment plant, the construction of the artificial wetland has the problems of high investment cost, difficult operation and maintenance, large occupied area, limited arrangement area, high implementation difficulty and the like, and is not suitable for distributed sewage treatment facilities with numerous discharge outlets. In the prior art, some researchers have applied in-situ remediation technology to purify sewage at a river drain. For example, patent No. cn201520391954.x discloses an in-situ ecological restoration device and system suitable for sewage at a sewage discharge outlet of a tidal inland river system, which purifies sewage in a drainage ditch by aquatic plant absorption and degradation of added microbial strains. However, the device is only a modification of an ecological floating island structure commonly used for river ecological restoration, the structure is complex, the installation difficulty is high, the manufacturing cost is high, the water landscape effect is general and is easy to be washed by river water, and the device is difficult to popularize and apply at the discharge port of a distributed sewage treatment facility. Aiming at the problems of dispersed arrangement of the discharge openings of the dispersed sewage treatment facilities, large discharge opening amount, limited reconstruction space, poor perception effect and the like, the research and development of the sewage purification device which has small occupied space, convenient and flexible installation, good landscape effect, strong sewage purification capacity and low manufacturing cost is a technical problem which needs to be broken through urgently.

Disclosure of Invention

The invention provides an assembly type landscape sewage purification device suitable for a dispersed sewage treatment facility discharge port, which aims to overcome the defects of the existing sewage treatment facility of the sewage treatment facility, solve the problems of water quality improvement of the discharged water of the dispersed sewage treatment facility and landscape construction of the discharge port, flexibly assemble a sewage purification structural element and a landscape structural element, hide the discharge port of the sewage treatment facility in the device, effectively utilize porous sewage purification materials to purify the discharged water of the discharge port layer by layer, and combine a self-elevating floating bed and a multilayer vegetation wall body to construct landscape effect, thereby realizing the comprehensive improvement of the water purification capability and the landscape effect of the facility discharge port.

The technical solution of the invention is as follows: the assembled landscape sewage purification device is suitable for dispersing a sewage treatment facility discharge port, and structurally comprises a fixed support, a submerged plant support frame, a submerged plant box, a cross support frame, a self-lifting type emerging plant floating bed, a carrier purification box, a porous material, a cross water distribution pipe, a drain pipe, a top plant-growing support frame, a fixed rod, an outer-distribution plant-growing bag, a top plant-growing disc and a movable lantern ring; the method is characterized in that: the fixed support is arranged in the riverside bottom mud near the discharge port, the submerged plant boxes are arranged on the inner bottom layer of the fixed support through submerged plant support frames, a plurality of mutually parallel cross support frames are sequentially arranged above the fixed support at equal intervals, 1 carrier purification box is arranged on each cross support frame, and porous materials are filled in each carrier purification box; the cross water distribution pipe is arranged above the carrier purification box at the topmost layer, the drain pipe is accessed from the outside of the fixed bracket, and the water outlet of the drain pipe is arranged right above the cross water distribution pipe; the self-lifting emergent aquatic plant floating beds are arranged on the side pillars of the fixed bracket through the movable lantern rings; the top plant-growing support frame is arranged at the top of the fixed support, and the top plant-growing disc is arranged on the upper surface of the top plant-growing support frame; the edge of the top plant-growing support frame is provided with a fixed rod, and a plurality of groups of plant-growing bags are arranged on the outer side surface of the fixed support frame through the fixed rod.

Furthermore, the whole fixed support is of a rectangular frame structure, and the height of the fixed support is determined according to the vertical distance from the discharge port to the riverbed; when the device is installed, four feet at the bottom of the fixed support are fixed in the bottom mud of the river channel at the lower part of the drainage pipe; the submerged plant support is arranged 15cm-30cm below the lowest water level of the riverway and is fixed on the side strut of the fixed support by a nut; taking the river sediment in situ at the installation position of the device, filling the river sediment in the submerged plant box, planting the submerged plants above the river sediment, and placing the submerged plant box on the submerged plant support frame after planting.

Furthermore, N cross support frames are fixed inside the fixed support through nuts, the positions of the cross support frames are adjusted according to the water level of the river channel, the cross support frame at the lowest end is named as level 1, and the height is 5cm-10cm above the normal water level of the river channel; the cross support frame at the uppermost end is named as the Nth level, and the lower end of the drain pipe 14 is 5cm-10 cm; each level of cross support frame between the Nth level of cross support frame and the 1 st level of cross support frame is distributed at equal intervals, 1 carrier purification box is correspondingly arranged on each 1 level of cross support frame, each carrier purification box is made of steel bars and steel wire meshes, an openable top cover is arranged at the top of each carrier purification box, the side edge of the openable top cover is arranged at the top of each carrier purification box through 1 folding sheet, and the other side of the openable top cover is filled with the particle size of porous materials in the box.

Furthermore, the self-lifting emergent aquatic plant floating bed adopts a hollow PVC plastic plate as a floating bed material, the shape of the self-lifting emergent aquatic plant floating bed is square or circular, a circular planting hole is formed in the middle of the floating bed, porous dirt-cleaning materials are filled in the planting hole, soil is backfilled, emergent aquatic plants are planted in the planting hole, the self-lifting emergent aquatic plant floating bed is connected with the fixed support through a movable lantern ring, and the connection position of the self-lifting emergent aquatic plant floating bed is between the submerged plant box and the 1 st-stage carrier purification box and can move freely along with the water level.

Furthermore, the cross water distribution pipe is made of materials and placed between the Nth-stage carrier purification box and the drain pipe, and a circular water collecting area is arranged in the middle and corresponds to the position of a water outlet of the drain pipe; the 4 water distribution pipes take a round water receiving area as a center and extend outwards in a cross shape, and each water distribution pipe is equidistantly provided with 1 water distribution hole.

Furthermore, the top plant-growing support frame is rectangular or square, and fixed rods are welded on each edge at equal intervals and used for fixing the externally-distributed plant-growing bags; the top plant growth plates are arranged on the top plant growth support frame and are divided into an inner area and an outer area, the periphery of the inner area is provided with hanging plants, and the inner area is provided with four-season flowering plants; the outer cloth plant biological bag is made of non-woven fabrics, a plurality of fixing rings are equidistantly arranged on the top of the outer cloth plant biological bag, and the positions and the number of the fixing rings correspond to the fixing rods on the edge of the top plant biological support frame; the surface of outer cloth plant living bag is equipped with a plurality of rows and plants living bag, and every is planted and grows the bag and fill vegetation matrix to plant evergreen herbaceous plant, four sides of fixed bolster all set up outer cloth plant living bag.

The invention has the advantages that:

(1) the drained water is percolated by the multi-stage carrier purification box, so that the concentration of pollutants in the drained water is effectively reduced, and the removal efficiency of pollutants in the water outlet of the drain outlet is high;

(2) the drain pipe is hidden in the device, and a good landscape effect is created by arranging various plants in a staggered, orderly and reasonable manner;

(3) the components are simple to assemble, the installation is flexible and simple, the purifying box is openable, and the internal dirt purifying carrier can be recycled and freely replaced;

(4) the device is arranged in a drainage ditch of a sewage treatment facility, occupies less land, has low construction cost and can be popularized and applied in a large scale.

Drawings

FIG. 1 is a schematic cross-sectional view of the apparatus of the present invention.

FIG. 2 is a schematic top view of the present invention in a wastewater treatment facility gutter stream.

FIG. 3 is a schematic perspective view of the purification box for carrier in the present invention.

FIG. 4 is a schematic three-dimensional structure of the externally-distributed plant growth bag of the present invention.

FIG. 5 is a schematic plane structure of the cross-shaped water distribution pipe of the present invention.

In the figure, 1 is a fixed bracket, 2 is a submerged plant support frame, 3 is a submerged plant box, 4 is a cross support frame, 5 is a self-lifting type emerging plant floating bed, 6 is a carrier purifying box, 7 is a porous material, 8 is an openable top cover, 9 is a buckle, 10 is a cross water distribution pipe, 11 is a water drainage pipe, 12 is a top plant growth support frame, 13 is a fixed rod, 14 is an outer distribution plant growth bag, 15 is a fixed ring, 16 is a plant growth bag plant, 17 is a top plant growth disc, 18 is a water collection area, 19 is a water distribution hole, and 20 is a movable lantern ring.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings. The contents of the various components are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "central," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" and the like are used for indicating or indicating the orientation or positional relationship indicated in the drawings, which are only for convenience of describing and simplifying the description, but are not for indicating or implying that the indicated device or element must have a specific orientation to be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the assembled landscape sewage purification device suitable for a distributed sewage treatment facility discharge port structurally comprises a fixed support 1, a submerged plant support frame 2, a submerged plant tank 3, a cross support frame 4, a self-lifting emergent aquatic plant floating bed 5, a carrier purification tank 6, a porous material 7, a cross water distribution pipe 10, a water discharge pipe 11, a top vegetation support frame 12, a fixed rod 13, an outer cloth vegetation bag 14, a top vegetation disc 17 and a movable lantern ring 20; the device comprises a fixed support 1, submerged plant boxes 3, a plurality of cross support frames 4, a carrier purification box 6 and a porous material 7, wherein the fixed support 1 is arranged in riverside bottom mud near a discharge port, the submerged plant boxes 3 are arranged on the inner bottom layer of the fixed support 1 through the submerged plant support frames 2, the cross support frames 4 which are parallel to each other are sequentially arranged above the fixed support 1 at equal intervals, each cross support frame 4 is provided with the carrier purification box 6, and the interior of each carrier purification box 6 is filled with the porous material 7; the cross water distribution pipe 10 is arranged above the carrier purification box 6 at the topmost layer, the drain pipe 11 is accessed from the outside of the fixed bracket 1, and the drain port of the drain pipe is arranged right above the cross water distribution pipe 10; a plurality of self-lifting emergent aquatic plant floating beds 5 are arranged on the side struts of the fixed bracket 1 through movable lantern rings 20; the top plant-growing support frame 12 is arranged at the top of the fixed support 1, and the top plant-growing disc 17 is arranged on the upper surface of the top plant-growing support frame 12; the edge of the top plant-growing support frame 12 is provided with a fixing rod 13, and a plurality of groups of plant-growing bags 14 are arranged on the outer side surface of the fixing support frame 1 through the fixing rod 13.

The whole fixed support 1 is of a rectangular frame structure, preferably formed by welding phi 10 steel bars, the length of the fixed support 1 is preferably 60cm-80cm, the width of the fixed support is preferably 60cm-80cm, and the height of the fixed support is determined according to the vertical distance from the discharge port to the riverbed; when the device is installed, four feet at the bottom of the fixed support 1 are fixed in bottom mud of a river channel at the lower part of the drain pipe 11, and the top of the fixed support is preferably 10cm-20cm higher than the water outlet.

The submerged plant support frame 2 is formed by welding preferable phi 8 steel bars and is used for supporting the submerged plant box 3, the submerged plant support frame 2 is arranged 15cm-30cm below the lowest water level of a river channel and is fixed on a side strut of the fixed support 1 through nuts.

The submerged plant box 3 is made of PVC plastic preferably, and the size is 58cm-75cm long, 58cm-75cm wide and 15cm-20cm high preferably; in actual use, the river sediment is taken in situ at the installation position of the device and filled in the submerged plant box 3, the submerged plants are planted above, the species of the submerged plants are preferably picrasm, watermifoil, black algae and potamogeton crispus, and the submerged plant box 3 is placed on the submerged plant support frame 2 after the submerged plants are planted.

The cross support frame 4 is preferably formed by welding phi 8 steel bars and is used for supporting the carrier purifying box 6. N cross support frames 4 are fixed on a fixed support 1 through nuts, N is preferably between 2 and 5, the positions of the cross support frames 4 are adjusted according to the water level of a river, the cross support frame 4 at the lowest end (named as level 1) is 5cm-10cm above the normal water level of the river, the cross support frame 4 at the highest end (named as level N) is 5cm-10cm below a drain pipe 14, the cross support frames 4 at the N level and the cross support frames 4 at the level 1 are distributed at equal intervals, and 1 carrier purification box 6 is correspondingly installed on each level 1 of cross support frame 4.

As shown in fig. 2, the self-lifting emergent aquatic plant floating bed 5 is preferably a hollow PVC plastic plate as a floating bed material, the shape is preferably a square or a circle, the size is preferably side length or diameter of 20cm-30cm and height of 8-10cm, a circular planting hole is arranged in the middle of the floating bed, the diameter of the planting hole is 10-15cm, and the height of the planting hole is 10-15 cm; when the planting hole is actually used, firstly filling a porous dirt-removing material with the thickness of 5-8cm in the planting hole, then backfilling soil with the thickness of 5-7cm, and planting emergent aquatic plants in the planting hole, wherein the varieties of the emergent aquatic plants are preferably calamus and canna; the self-lifting emergent aquatic plant floating bed 5 is connected with the fixed support 1 through the movable lantern ring 20, the connecting position is arranged between the submerged plant box 3 and the 1 st-stage carrier purifying box 6, and the self-lifting emergent aquatic plant floating bed 5 can freely move along with the water level when the water level changes.

As shown in fig. 3, the carrier purification box 6 is preferably made of steel bars and steel wire meshes, the size is preferably 58cm to 75cm in length, 58cm to 75cm in width, 15cm to 20cm in height, an openable top cover 8 is arranged at the top of the carrier purification box, the side edge of the openable top cover 8 is installed at the top of the carrier purification box 6 through 1 pair of hinges, and 1 pair of buckles 9 are correspondingly arranged at the other side edge of the openable top cover 8; the carrier purifying box 6 is filled with the porous material 7, and the aperture of the steel wire mesh is smaller than the particle size of the porous material 7 filled in the carrier purifying box 6; during actual use, an openable top cover 8 of the carrier purification box 6 is opened, a porous material 7 is filled in the box body, the openable top cover 8 is closed, the carrier purification box 6 is closed by a buckle 9, the carrier purification box is sequentially inserted between adjacent 2-stage cross support frames 4 of the fixed support 1 in a drawer type mode after being closed, the carrier purification boxes 6 at different positions are preferably filled with different types of porous materials, the porous materials are preferably ceramsite, zeolite and activated carbon particles, and the carrier purification box 6 can be opened and replaced after being used for a long time.

As shown in fig. 5, the cross water distributor 10 is preferably made of PVC plastic, and is placed between the nth-stage carrier purification tank and the drain pipe 11, and a circular water collecting area 18 is provided in the middle of the cross water distributor 10, and has a diameter of preferably 5-8cm, and corresponds to the position of the drain outlet of the drain pipe 11; the 4 water distribution pipes extend outwards in a cross shape by taking the round water receiving area 18 as the center, and each water distribution pipe is equidistantly provided with 1 water distribution hole 19; when the device is in actual use, water is injected into the circular water receiving area 18 through the drain pipe 11 and then enters the Nth-stage carrier purification box through the water distribution holes 19 on the cross water distribution pipe 10, and the water flows into a river channel after being purified by the N-stage carrier purification box 6, so that the concentration of pollutants in the water discharged from the sewage treatment facility is effectively reduced.

The top plant-growing support frame 12 is rectangular or square, is preferably formed by welding phi 8 steel bars, is preferably 60cm-80cm long and 60cm-80cm wide, and is provided with fixing rods 13 with the height of 3-5cm and welded on each edge at equal intervals for fixing the externally-distributed plant-growing bags 14; a plurality of top plant growth discs 17 are placed on the top plant growth support frame 12, the top plant growth discs 17 are made of PVC plastic preferably, and the top plant growth discs 17 are 60cm-80cm long, 60cm-80cm wide and 10cm-25cm high preferably; the top plant growing tray 17 is divided into an inner area and an outer area, the periphery of the top plant growing tray is 20cm wide, and suspended plants, preferably chlorophytum comosum, winter jasmine, scindapsus aureus and the like are placed in the top plant growing tray; the inside is provided with the plants which bloom in the four seasons, preferably creeping oxalis, petunia and sunflower, so as to create good landscape effect.

As shown in fig. 4, the material of the outer plant biological bag 14 is preferably non-woven fabric, the top of the outer plant biological bag is equidistantly provided with a plurality of fixing rings 15, and the positions and the number of the fixing rings 15 correspond to the fixing rods 13 at the edge of the top plant biological support frame 12; the surface of the outer cloth plant biological bag 14 is provided with a plurality of rows of plant biological bags, each plant biological bag is filled with plant growth substrates, plant biological bag plants 16 are planted, and the variety of the plant biological bag plants 16 is preferably evergreen herbaceous plants; when in actual use, the outer-distribution plant biological bag 14 is sleeved on the fixed rod 13 on the top plant biological support frame 12 through the fixed ring 15, and the bottom is connected and fixed with the 1 st-stage cross support frame 4; the width of the externally-distributed plant growth bag 14 is preferably 60cm-80cm, and the height is determined by the distance between the normal water level of the river and the top of the fixed support; the plant growing bags 14 are hung on the four side surfaces of the fixed support 1, so that a green plant wall is formed outside the device.

The installation and the working process of the device are as follows:

firstly, the normal water level and the lowest water level of a discharge port river channel are mastered, and the arrangement positions of a submerged plant tank 2 and an N-level carrier purification tank 6 on a fixed support 1 and the height of an external vegetation bag are determined according to the water level amplitude of the river channel and the discharge port position of a sewage treatment facility;

fixing four feet of a fixing support 1 in bottom sediment of a river channel at the lower part of a drain pipe, and fixing a submerged plant support frame 2, a cross support frame 4 (from the 1 st level to the N th level), a cross water distribution pipe 10 and a top vegetation support frame 12 in the fixing support 1 from bottom to top in sequence, wherein a central water collecting area 18 of the cross water distribution pipe 10 is positioned below a water outlet of the drain pipe 11;

placing the submerged plant box 3 on the submerged plant support frames 2, inserting the N-level carrier purification boxes 6 above the N cross support frames 2 respectively, hanging the upper parts of the outer-distributed vegetation bags 14 planted with the evergreen herbaceous plants 16 on the fixing rods 13 of the top vegetation support frames 12 through fixing rings 15, and fixing the lower parts of the outer-distributed vegetation bags with the 1 st-level cross support frames 2; placing top plant growing trays 17 on which the suspended plants and the plants which bloom in four seasons are respectively arranged inside and outside on the top plant growing support frame 12, and connecting the self-lifting emergent aquatic plant floating bed 5 to the fixed support frame 1 to complete the assembly of each device assembly;

after the device is installed, the water discharged from the water discharge pipe 11 is distributed downwards by the cross water distribution pipe 10 and is purified step by the N-stage carrier purification box 6, so that the concentration of pollutants in the discharged water is reduced; the submerged plant tank 3 and the self-lifting emergent plant floating bed 5 further purify the outlet water, and meanwhile, the drain pipe 11 is hidden in the device; the evergreen herbaceous plants 16 at the periphery of the fixed support 1, the suspended plants in the top plant tray 17, the plants blooming in the four seasons and the emergent aquatic plants on the floating bodies are arranged in a staggered and reasonable matching manner, so that a good riverside landscape effect is created while water pollutants are purified;

fifthly, after the device is used for a period of time, the external plant biological bag 14 on one side can be detached, the carrier purifying box 6 is drawn out, the openable top cover 8 is punched to be clamped, the porous material 7 is replaced, and the used porous material 7 can be recycled after recovery treatment.

The following detailed description of the embodiments of the present invention is provided by way of specific examples for the purpose of further understanding the present invention by those skilled in the art, and is not intended to limit the present invention in any way.

Examples

The lowest water level of the outlet water channel of the embodiment is 0.6m, the normal water level is 1.0m, and the distance between the outlet and the riverbed is 1.5 m. An assembled landscape sewage purification device suitable for a distributed sewage treatment facility discharge port structurally comprises a fixed support 1, a submerged plant support frame 2, a submerged plant tank 3, a cross support frame 4, a self-lifting emergent aquatic plant floating bed 5, a carrier purification tank 6, a porous material 7, an openable top cover 8, a buckle 9, a cross water distribution pipe 10, a drain pipe 11, a top vegetation support frame 12, a fixed rod 13, an outer vegetation bag 14, a fixed ring 15, vegetation bag plants 16, a top vegetation disc 17, a water collection area 18, a water distribution hole 19 and a movable lantern ring 20; wherein, the fixed bracket 1 is arranged in the bottom mud near the discharge port, and the submerged plant box 3, the self-lifting emergent plant floating bed 5, the N carrier purifying boxes 6, the cross water distribution pipe 10, the outer plant biological bags 14 and the top plant tray 17 are sequentially assembled on the fixed bracket 1; the water discharged from the water discharge pipe 11 is uniformly distributed on the upper part of the carrier purification box 6 by the cross-shaped water distribution pipe 10, the discharged water is purified by the porous material 7 in the carrier purification box and the submerged plants on the lower part of the device and then enters the river channel, so that the pollutant content in the discharged water is effectively reduced, meanwhile, the evergreen herbaceous plants 16 in the outer distribution plant biological bag 14, the suspended plants and the plants blooming in the top plant tray 17 and the emergent plants on the self-lifting emergent plant floating bed 5 are arranged in a staggered manner and reasonably matched, and a good riverside landscape is built.

The fixed bracket 1 is formed by welding phi 10 steel bars, and has the dimensions of 60cm in length, 60cm in width and 200cm in height; four feet at the bottom of the fixed support 1 are fixed in the bottom mud of the river channel at the lower part of the drainage pipe, the depth of the bottom mud is 40cm, and the top of the fixed support is 10cm higher than the discharge port; the submerged plant support frame 2 is formed by welding preferable phi 8 steel bars and is fixed by nuts at a position 70cm away from the bottom of the fixed support 1; the cross support frame 4 is formed by welding phi 8 steel bars, four cross support frames 4 are fixed on the fixed support 1 by nuts, the 1 st-stage cross support frame 4 at the lowest end is 6cm above the normal water level of a river channel, the 4 th-stage cross support frame 4 at the uppermost end is 6cm below the water discharge pipe 14, all stages are distributed at equal intervals, and the interval between every two adjacent stages is 22 cm.

The submerged plant box 3 is made of PVC plastic, the length is 58cm, the width is 58cm, the height is 15cm, the river channel bottom mud is filled in the submerged plant box body in situ, the submerged plants are planted with the watermifoil, and the submerged plants are placed on the submerged plant support frame 2 after field planting.

The floating bed material of the self-lifting emergent aquatic plant floating bed 5 is a hollow PVC square plastic plate (20 cm long × 8cm high), the middle part of the floating bed is provided with a circular planting hole, the diameter of the planting hole is 10cm, the height of the planting hole is 10cm, porous dirt-cleaning material ceramsite with the thickness of 5cm is firstly filled in the planting hole, then soil with the thickness of 5cm is backfilled, and an emergent aquatic plant calamus is planted in the planting hole; the self-lifting emergent aquatic plant floating bed 5 is connected with the fixed support 1 through a movable lantern ring 20, and the connection position is between the submerged plant box 3 and the level 1 carrier purification box 6; the carrier purifying box 6 is made of steel bars and steel wire meshes, the size is 58cm in length, 58cm in width, 20cm in height, the aperture of each steel wire mesh is 0.3cm, an openable top cover 8 of the carrier purifying box 6 is opened, porous materials are filled in the carrier purifying box 6, and the carrier purifying box 6 is closed by a buckle 9; a four-stage carrier purification box is arranged, and the porous materials from the first stage to the fourth stage are respectively filled with ceramsite (with the particle size of 0.5 cm), zeolite (with the particle size of 0.8 cm), ceramsite (with the particle size of 1 cm) and zeolite (with the particle size of 1.5 cm); the four-stage porous purification boxes are respectively inserted into the four corresponding cross-shaped support frames 4 in sequence according to the drawer type.

The cross water distribution pipe 10 is made of PVC plastic and is placed between the 4 th-stage carrier purification tank and the drain pipe 11, the diameter of a circular water receiving area 18 in the middle of the cross water distribution pipe 10 is 6cm and corresponds to the water outlet position of the drain pipe, water enters the 4 th-stage carrier purification tank through a water distribution hole 19 in the cross water distribution pipe 10, and the water is purified by the four-stage carrier purification tank 6 and then flows into a river channel.

The top vegetation support frame 12 is a square with the side length of 60cm and is formed by welding phi 8 steel bars, and fixing rods 13 with the welding height of 3cm are welded on each side at intervals of 10 cm; the outer-cloth plant biological bags 14 are made of non-woven fabrics, 6 fixing rings 15 are arranged at the tops of the outer-cloth plant biological bags 14, the outer-cloth plant biological bags 14 are sleeved on the fixing rods 13 on the plant biological support frames 12 at the tops of the outer-cloth plant biological bags through the fixing rings 15, and the bottoms of the outer-cloth plant biological bags are fixedly connected with the 1 st-stage cross support frame 4; the width of the outer cloth plant biological bag 14 is 60cm, and the height is 80 cm; plant growth substrates are filled in the plant growth bags, evergreen herbaceous plants, namely erythrina indica, are planted in plant growth bag plants 16, and plant growth bags 14 are hung on the four side surfaces of the device to form a green plant wall outside the device; the top plant-growing tray 17 is placed on the top plant-growing support frame 12, is made of PVC plastic and has the dimensions of 60cm in length, 60cm in width and 15cm in height; the top plant growing tray 17 is divided into an inner area and an outer area, the periphery of the top plant growing tray is 20cm wide, and a hanging plant chlorophytum comosum is placed in the top plant growing tray; inside the container is arranged creeping oxalis and petunia hybrida.

When the device is installed, four feet of a fixed support 1 are fixed in bottom mud of a river channel at the lower part of a drain pipe, a submerged plant support frame 2, a cross support frame 4 (from level 1 to level 4), a cross water distribution pipe 10 and a top vegetation support frame 12 are fixed on the fixed support 1 from bottom to top in sequence, and a central water collecting area 18 of the cross water distribution pipe 10 is positioned below a drain port; then assemble the device subassembly, place the benthophyte case 3 on the benthophyte support frame 2, insert four levels carrier purifying box 6 on four cross support frames 2 respectively according to "drawer type", hang the outer cloth plant biological bag 14 upper portion that has the evergreen herbaceous plant 16 on the dead lever 13 of top plant biological support frame 12 through solid fixed ring 15, the lower part is fixed with level 1 cross support frame 2, place top plant biological dish 17 on top plant biological support frame 12, connect self-elevating emergent aquatic plant floating bed 5 on fixed bolster 1, accomplish the assembly of each device subassembly promptly.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and technical contents not described in detail in the present invention are all the same as or implemented by using the prior art. All the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of patent protection of the present patent.

Claims

1. An assembled landscape sewage purification device suitable for dispersing a sewage treatment facility discharge port structurally comprises a fixed support (1), a submerged plant support frame (2), a submerged plant box (3), a cross support frame (4), a self-lifting emergent aquatic plant floating bed (5), a carrier purification box (6), a porous material (7), a cross water distribution pipe (10), a drain pipe (11), a top vegetation support frame (12), a fixed rod (13), an outer-distribution vegetation bag (14), a top vegetation disc (17) and a movable lantern ring (20); the method is characterized in that: the device comprises a fixed support (1), submerged plant boxes (3), a plurality of cross-shaped support frames (4) which are parallel to each other, a carrier purification box (6) and a porous material (7), wherein the fixed support (1) is arranged in riverside bottom mud near a discharge port, the submerged plant boxes are arranged on the inner bottom layer of the fixed support (1) through the submerged plant support frames (2), the plurality of cross-shaped support frames (4) are sequentially arranged above the fixed support (1) at equal intervals, and the carrier purification boxes (6) are filled with the porous material (7); the cross water distribution pipe (10) is arranged above the carrier purification box (6) at the topmost layer, the drain pipe (11) is accessed from the outside of the fixed bracket (1), and the water outlet of the water distribution pipe is arranged right above the cross water distribution pipe (10); a plurality of self-lifting emergent aquatic plant floating beds (5) are arranged on the side struts of the fixed support (1) through movable lantern rings (20); the top plant-growing support frame (12) is arranged at the top of the fixed support frame (1), and the top plant-growing disc (17) is arranged on the upper surface of the top plant-growing support frame (12); the edge of the top plant-growing support frame (12) is provided with a fixed rod (13), and a plurality of groups of externally-distributed plant-growing bags (14) are arranged on the outer side surface of the fixed support frame (1) through the fixed rod (13);

the cross-shaped support frames (4) are formed by welding phi 8 steel bars, N cross-shaped support frames (4) are fixed inside the fixed support frame (1) through nuts, and N is between 2 and 5; the position of the cross support frame (4) is adjusted according to the water level of the river channel, the cross support frame (4) at the lowest end is named as level 1, and the height is 5cm-10cm above the normal water level of the river channel; the cross support frame (4) at the uppermost end is named as the Nth stage, and the lower end of the drain pipe 14 is 5cm-10 cm; all levels of cross support frames (4) between the Nth level of cross support frame (4) and the 1 st level of cross support frame (4) are distributed at equal intervals, and 1 carrier purification box (6) is correspondingly arranged on each 1 level of cross support frame (4);

the self-lifting emergent aquatic plant floating bed (5) adopts a hollow PVC plastic plate as a floating bed material, the shape of the self-lifting emergent aquatic plant floating bed is square or circular, the side length or the diameter of the self-lifting emergent aquatic plant floating bed is 20cm-30cm, and the height of the self-lifting emergent aquatic plant floating bed is 8-10 cm; a circular planting hole is arranged in the middle of the floating bed, the diameter of the planting hole is 10-15cm, and the height of the planting hole is 10-15 cm; when the planting hole is actually used, firstly filling a porous dirt-removing material with the thickness of 5-8cm in the planting hole, then backfilling soil with the thickness of 5-7cm, and planting emergent aquatic plants in the planting hole, wherein the variety of the emergent aquatic plants adopts calamus or canna; the self-lifting emergent aquatic plant floating bed (5) is connected with the fixed support (1) through the movable lantern ring (20), and the connecting position is between the submerged plant box (3) and the 1 st-stage carrier purification box (6) and freely moves along with the water level.

2. The assembly type landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the whole fixed support (1) is of a rectangular frame structure and is welded by using phi 10 steel bars, the length of the fixed support (1) is 60cm-80cm, the width of the fixed support is 60cm-80cm, and the height of the fixed support is determined according to the vertical distance from the discharge port to the riverbed; when the device is installed, four feet at the bottom of the fixed support (1) are fixed in the bottom mud of the river channel at the lower part of the drainage pipe (11), and the top of the fixed support is 10-20 cm higher than the drainage port.

3. The assembled landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the submerged plant support frame (2) is welded by a phi 8 steel bar and is used for supporting the submerged plant tank (3), the submerged plant support frame (2) is arranged 15cm-30cm below the lowest water level of the river and is fixed on the side strut of the fixed support (1) by a nut.

4. The assembled landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the submerged plant tank (3) is made of PVC plastic and has the dimensions of 58cm to 75cm in length, 58cm to 75cm in width, and 15cm to 20cm in height; when the device is actually used, the river sediment is taken in situ at the installation position of the device and filled in the submerged plant box (3), submerged plants are planted above the device, the variety of the submerged plant adopts eel grass, watermifoil, black algae or potamogeton crispus, and the submerged plant box (3) is placed on the submerged plant support frame (2) after the submerged plants are planted.

5. The assembled landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the carrier purification box (6) is made of steel bars and steel wire meshes, has the dimensions of 58cm-75cm in length, 58cm-75cm in width, 15cm-20cm in height, is provided with an openable top cover (8) at the top, the side edge of the openable top cover (8) is arranged at the top of the carrier purification box (6) through a 1-pair hinge, and the other side edge of the openable top cover (8) is correspondingly provided with 1 pair of buckles (9); the carrier purification box (6) is filled with porous materials (7), and the aperture of the steel wire mesh is smaller than the particle size of the porous materials (7) filled in the carrier purification box (6); during actual use, an openable top cover (8) of the carrier purification box (6) is opened, a porous material (7) is filled in the box body, the openable top cover (8) is closed, the carrier purification box (6) is closed by a buckle (9), the carrier purification box is sequentially inserted between two adjacent stages of cross-shaped support frames (4) of the fixed support (1) after being closed, the carrier purification boxes (6) at different positions are filled with porous materials of different types, the porous materials adopt ceramsite, zeolite or activated carbon particles, and the carrier purification boxes (6) are opened and replaced after being used for a long time.

6. The assembled landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the cross water distribution pipe (10) is made of PVC plastic and is placed between the Nth-stage carrier purification tank and the water discharge pipe (11), and a circular water collection area (18) with the diameter of 5-8cm and corresponding to the position of the water discharge port of the water discharge pipe (11) is arranged in the middle of the cross water distribution pipe (10); the 4 water distribution pipes extend outwards in a cross shape by taking the round water receiving area (18) as the center, and each water distribution pipe is provided with 1 water distribution hole (19) at equal distance; when the water-saving type water-collecting device is actually used, water is injected into the circular water-collecting area (18) through the water discharge pipe (11), enters the Nth-stage carrier purification box through the water distribution holes (19) on the cross water distribution pipe (10), and flows into a river channel after being purified by the N-stage carrier purification box (6).

7. The assembly type landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the top vegetation support frame (12) is rectangular or square, is formed by welding phi 8 steel bars, has a length of 60cm-80cm and a width of 60cm-80cm, and is provided with fixing rods (13) with a height of 3-5cm welded at equal intervals on each edge for fixing the outer-cloth vegetation bags (14); a plurality of top plant growth discs (17) are placed on the top plant growth support frame (12), the top plant growth discs (17) are made of PVC plastics, and the sizes are 60cm-80cm in length, 60cm-80cm in width and 10cm-25cm in height; the top plant growing tray (17) is divided into an inner area and an outer area, the peripheral width is 20cm, and suspended plants are placed in the top plant growing tray and adopt chlorophytum comosum, winter jasmine or scindapsus aureus; the inside is provided with plants which bloom in the four seasons, and creeping oxalis, petunia or sunflower are adopted.

8. The assembled landscape sewage purification device suitable for dispersing the discharge port of the sewage treatment facility according to claim 1, wherein the outer cloth plant biological bags (14) are made of non-woven fabrics, a plurality of fixing rings (15) are equidistantly arranged on the top of the outer cloth plant biological bags, and the positions and the number of the fixing rings (15) correspond to the fixing rods (13) on the edge of the top plant biological support frame (12); the surface of the outer cloth plant biological bag (14) is provided with a plurality of rows of plant biological bags, each plant biological bag is filled with plant growth substrates, plant biological bag plants (16) are planted, and the variety of the plant biological bag plants (16) adopts evergreen herbaceous plants; when the device is in actual use, the outer cloth plant biological bags (14) are sleeved on the fixed rods (13) on the plant biological support frame (12) at the top through the fixed rings (15), and the bottoms of the plant biological bags are fixedly connected with the edge of the 1 st-stage cross support frame (4); the width of the externally-distributed plant growth bag (14) is 60cm-80cm, and the height is determined by the distance between the normal water level of the river and the top of the fixed support; the four side surfaces of the fixed bracket (1) are all provided with an outer cloth plant biological bag (14).