CN210736329U - Three-dimensional rotary horizontal subsurface flow constructed wetland device - Google Patents
Three-dimensional rotary horizontal subsurface flow constructed wetland device Download PDFInfo
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- CN210736329U CN210736329U CN201921708275.5U CN201921708275U CN210736329U CN 210736329 U CN210736329 U CN 210736329U CN 201921708275 U CN201921708275 U CN 201921708275U CN 210736329 U CN210736329 U CN 210736329U
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Abstract
The utility model discloses a three-dimensional horizontal subsurface flow constructed wetland device of gyration belongs to the constructed wetland field, relates to one kind and has higher denitrogenation efficiency, higher unit land area pollutant removal load, multilayer vertical arrangement, the three-dimensional horizontal subsurface flow constructed wetland device that sewage gyration was flowed. The method is characterized in that: the artificial wetland system comprises an upper artificial wetland right unit 1, an upper artificial wetland left unit 2, a middle artificial wetland right unit 3, a middle artificial wetland left unit 4, a lower artificial wetland right unit 5, a lower artificial wetland left unit 6, a left upright post 7, a middle upright post 8 and a right upright post 9; the left unit and the right unit of each layer of artificial wetland are provided with water inlet pipes. The utility model provides a three-dimensional horizontal undercurrent constructed wetland structural style of gyration has that the carbon source distributes balanced, impact load resistant, plant biomass and shows the advantage that increases, area is few, reduces the pipe network construction cost, reduces groundwater pollution risk, fully presents the ecological landscape function.
Description
Technical Field
The invention belongs to the field of artificial wetlands, and particularly relates to a multi-layer vertically-arranged three-dimensional horizontal subsurface flow artificial wetland device with sewage horizontally revolving and flowing according to gravity.
Background
The artificial wetland is a wetland system which is usually modified by artificial reinforcement measures, and the sewage is promoted to be purified under the physical, chemical and biological actions of substrates, plants and microorganisms of the wetland according to the structure and function coordination principle by applying the principles of species symbiosis and material circulation regeneration in an ecosystem.
The artificial wetland comprises a building envelope, a substrate, aquatic plants, microorganisms, sewage and the like. According to the difference of water distribution modes of water inlet and outlet, the artificial wetland is generally divided into a surface flow artificial wetland and an undercurrent artificial wetland, wherein the undercurrent artificial wetland is widely applied because of the characteristics of good operating environment and high pollutant purification efficiency. The subsurface flow constructed wetland can be divided into a horizontal subsurface flow constructed wetland and a vertical subsurface flow constructed wetland according to the direction of internal water flow, and compared with the vertical subsurface flow constructed wetland, the horizontal subsurface flow constructed wetland has both aerobic and anoxic environments and has better nitrification and denitrification performances, so the subsurface flow constructed wetland is often applied to the sewage denitrification process.
The artificial wetland biological treatment technology can effectively degrade and convert various pollutants such as nitrogen, phosphorus, suspended matters, organic matters, heavy metals and the like. The artificial wetland system provides ecological landscape and green plants through simulation of natural habitat, provides inhabitation places for wild animals, and therefore shows a good ecological restoration function. However, the traditional artificial wetland has a small pollutant removal load, and large-area land supply is often needed to ensure the scale of wastewater treatment and the effluent quality. Because the artificial wetland occupies too large area, the artificial wetland is usually forced to be arranged in suburban areas far away from population gathering areas. Therefore, long-distance sewage transportation increases the construction cost of a sewage collecting and discharging system on the one hand, and increases the risk of sewage polluting underground water on the other hand. If the constructed wetland is arranged far away from the urban area, the construction cost of a pipe network can be increased by times if the recycling problem of the treated water of the constructed wetland is considered, and the function of the constructed wetland as the hydrophilic landscape of the waterfront area is greatly limited. Therefore, the improvement of the pollution removal load of the unit land area of the artificial wetland and the reduction of the occupied area of the artificial wetland are the key points for popularizing and developing the biological treatment technology of the artificial wetland and fully exerting the environmental, economic and social benefits of the artificial wetland.
Disclosure of Invention
Aiming at the problems of the existing artificial wetland biological treatment technology, the invention provides a novel horizontal subsurface flow artificial wetland device which is impact load resistant, has higher denitrification efficiency and higher pollutant removal load per unit land area, and can reduce the floor area.
The object of the present invention can be achieved by the following means.
A three-dimensional rotary horizontal subsurface flow constructed wetland device can be divided into an upper layer, a middle layer and a lower layer, which are bilaterally symmetrical, and comprises an upper layer constructed wetland right unit on the upper right side, an upper layer constructed wetland left unit on the upper left side, a middle layer constructed wetland right unit on the middle right side, a middle layer constructed wetland left unit on the middle left side, a lower layer constructed wetland right unit on the lower right side, a lower layer constructed wetland left unit on the lower left side, a left upright post, a middle upright post and a right upright post between the constructed wetland left and right units. The upper layer artificial wetland right unit is a hollow cuboid structure with an upper opening. The upper right water passing hole is arranged at the upper part of the upper right water passing clapboard. The upper right unit water inlet pipe is horizontally arranged at the center of the left side of the upper right unit left baffle, the left end of the horizontal short pipe at the upper end of the upper middle connecting pipe of the right unit is connected with the center of the upper right unit right baffle, the middle right unit water inlet pipe is horizontally arranged at the center of the lower part of the right side of the middle right unit right baffle, and the left end of the horizontal short pipe at the lower end of the upper middle connecting pipe of the right unit is connected with the center of the upper part of the middle right unit; the right end of the horizontal short pipe at the upper end of the right unit middle lower connecting pipe is connected with the center of the middle right unit left baffle; the lower right unit water inlet pipe is horizontally arranged at the center of the lower part of the left side of the lower right unit left baffle; the lower end of the lower connecting pipe in the right unit is connected with the left center of the upper part of the left baffle of the lower right unit; the left end of the horizontal short pipe of the water outlet pipe of the lower right unit is connected with the right center of the right baffle of the lower right unit.
The upper artificial wetland right unit is formed by an upper right unit front baffle, an upper right unit rear baffle, an upper right unit left baffle, an upper right unit right baffle and an upper right unit bottom plate enclosing baffle.
The upper right unit front baffle, the upper right unit rear baffle, the upper right unit left baffle, the upper right unit right baffle and the upper right unit bottom plate are rectangular plane thin plates.
The upper right water passing holes are uniformly distributed on the upper part of the upper right water passing partition plate and are arranged in three rows, and the distance between the upper right water passing holes in the upper row and the center of the upper edge of the upper right water passing partition plate is 1/4 the height of the upper right water passing partition plate. And the clear distance between the adjacent upper right water passing holes in each row is 1.5 times of the diameter of the upper right water passing holes, and the total area of the holes of the upper right water passing holes accounts for 4-6% of the area of the upper right water passing partition plate.
The upper right water passing partition plates are 5, the areas between the upper right water passing partition plates and the adjacent upper right unit left baffle plates and the adjacent upper right unit right baffle plates at the left end and the right end are an upper right unit water inlet distribution area and an upper right unit water outlet distribution area respectively, and the lengths of the upper right unit water inlet distribution area and the upper right unit water outlet distribution area are 1/10 of the length of the upper artificial wetland right unit. The area between two adjacent upper right water passing partition plates is an upper right unit water treatment area, 4 upper right unit water treatment areas are provided, and the length of the single upper right unit water treatment area is 1/5 the length of the right unit of the upper artificial wetland.
The upper middle connecting pipe of the right unit and the middle lower connecting pipe of the right unit are cylindrical hollow pipelines with the two ends open in the shape of 'and' and the height of the cylindrical hollow pipelines is 1.0-1.2 times of the height of the right unit of the upper artificial wetland. The lengths of the upper horizontal section and the lower horizontal section of the upper connecting pipe and the middle connecting pipe of the right unit and the lower connecting pipe of the right unit are equal; the water outlet pipe of the lower right unit is an L-shaped cylindrical hollow pipeline with two open ends; the lengths of the horizontal short pipe and the vertical short pipe of the water outlet pipe of the lower right unit are equal. The diameters of various pipelines in the invention are equal to the diameters of the water inlet pipes of the upper right unit.
The box body structures and the sizes of the upper artificial wetland left unit, the middle artificial wetland right unit, the middle artificial wetland left unit, the lower artificial wetland right unit and the lower artificial wetland left unit are all consistent with those of the upper artificial wetland right unit, and the upper artificial wetland right unit and the upper artificial wetland left unit, the middle artificial wetland right unit and the middle artificial wetland left unit, and the lower artificial wetland right unit and the lower artificial wetland left unit form a front-back symmetrical relation respectively about a plane formed by vertical central lines of the left stand column, the middle stand column and the right stand column. The clear distances between the upper artificial wetland right unit and the middle artificial wetland right unit, between the middle artificial wetland right unit and the lower artificial wetland right unit, and between the upper artificial wetland left unit and the middle artificial wetland left unit, and between the middle artificial wetland left unit and the lower artificial wetland left unit are equal, and are 1.2-1.5 times of the height of the artificial wetland units.
The left stand column, the middle stand column and the right stand column are square hollow stand columns, and the 3 stand columns are respectively assembled at the left end, the middle part and the right end of a gap formed between the left and right artificial wetland units. The front and rear outer walls of each upright post are closely attached to the rear baffle of each unit. The center distance between the adjacent upright columns is 2/5 of the length of the artificial wetland unit, and the center distances between the left upright column and the right upright column and the left and right outer walls of the artificial wetland unit are 1/10 of the length of the artificial wetland unit. Triangular supports are arranged on the left stand column, the middle stand column and the right stand column to respectively support each layer of artificial wetland unit, and each artificial wetland unit is provided with 3 triangular supports which are respectively connected with the outer wall of one side of the left stand column, the middle stand column and the right stand column, and the number of the triangular supports is 18.
Compared with the prior art, the invention has the following advantages: (1) balanced carbon source and impact load resistance. The multipoint water inflow can ensure that dissolved oxygen and carbon sources carried in the inflow are distributed in the device more evenly, so that the better matching of the dissolved oxygen supply and pollutant load can be realized, and better nitration reaction and denitrification reaction can be realized; meanwhile, the impact of the inlet water quality change on the constructed wetland system can be effectively stabilized. (2) Plant biomass increased significantly. The plant plays a very key role in the process of removing the pollutants in the artificial wetland. The vertical multilayer design of the invention changes the inherent mode of single-layer planting of aquatic plants in the traditional artificial wetland, realizes multilayer accumulation of plant biomass, and is beneficial to better exerting the ecological advantages of plants in the removal of pollutants in the artificial wetland. (3) The occupied area is small. The device is a three-dimensional vertical rotary structure and is connected in series in multiple layers, so that the pollution load and the removal load on a unit land area are improved, and the land occupation area is reduced. (4) Reduce the pipe network construction cost, reduce groundwater pollution risk. The invention has the advantage of small floor area, can be arranged near a pollution source, can better realize the source treatment of sewage, not only reduces the long-distance transportation of a sewage collecting pipe network, but also avoids the large-scale laying of a recycling pipe network, reduces the construction cost of the pipe network, and also reduces the pollution risk of sewage leakage to underground water. (5) Fully presents the function of ecological landscape. The artificial wetland has the characteristics of small floor area and flexible arrangement, can be arranged near a residential gathering area, and can fully realize the environmental and social benefits of the artificial wetland.
Drawings
Fig. 1 is a top view of a three-dimensional rotary horizontal subsurface flow constructed wetland device of the invention.
Fig. 2 is a front view of a three-dimensional rotary horizontal subsurface flow constructed wetland device.
Fig. 3 is a side view of a three-dimensional rotary horizontal subsurface flow constructed wetland device of the invention.
Fig. 4 is a sectional view taken along line i-i of fig. 1.
Fig. 5 is a sectional view taken along line ii-ii of fig. 1.
Fig. 6 is a schematic view of point a in fig. 5.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to fig. 1 to 6, but the present invention is not limited to these embodiments.
A three-dimensional rotary horizontal subsurface flow constructed wetland device can be divided into an upper layer, a middle layer and a lower layer, and two units which are symmetrical left and right. The artificial wetland system comprises an upper artificial wetland right unit 1 positioned on the right side of the upper part, an upper artificial wetland left unit 2 positioned on the left side of the upper part, a middle artificial wetland right unit 3 positioned on the right side of the middle part, a middle artificial wetland left unit 4 positioned on the left side of the middle part, a lower artificial wetland right unit 5 positioned on the right side of the lower part, a lower artificial wetland left unit 6 positioned on the left side of the lower part, a left upright post 7, a middle upright post 8 and a right upright post 9 which are positioned between the artificial wetland left and right units.
The upper artificial wetland right unit 1 comprises an upper right unit front baffle 11, an upper right unit rear baffle 12, an upper right unit left baffle 13, an upper right unit right baffle 14, an upper right unit bottom plate 15, an upper right unit water inlet pipe 16, a right unit upper middle connecting pipe 17 and an upper right unit water passing partition plate 18.
The upper constructed wetland right unit 1 is a hollow cuboid with an upper opening, and is formed by enclosing an upper right unit front baffle plate 11, an upper right unit rear baffle plate 12, an upper right unit left baffle plate 13, an upper right unit right baffle plate 14 and an upper right unit bottom plate 15, wherein each baffle plate and the bottom plate are connected tightly, and each baffle plate and the bottom plate are rectangular plane sheets.
The upper right unit water inlet pipe 16 is a cylindrical hollow pipeline with two open ends, is horizontally arranged at the center of the left side of the upper right unit left baffle 13, and is tightly connected with a circular hole with the same diameter, which is arranged at the center of the upper right unit left baffle 13.
The upper middle connecting pipe 17 of the right unit is a cylindrical hollow pipeline with two open ends and is formed by connecting two 90-degree elbows, two horizontal short pipes and one vertical short pipe, and the height of the hollow pipeline is 1.0-1.2 times of the height of the right unit 1 of the upper artificial wetland. The lengths of the upper and lower horizontal sections of the upper and middle connecting pipes 17 of the right unit are equal and are 0.5 times of the length of the vertical section, and the length of the vertical section is 1 time of the height of the right unit 1 of the upper artificial wetland. The left end of the horizontal short pipe at the upper end of the upper middle connecting pipe 17 of the right unit is tightly connected with a circular opening with the same diameter at the center of the right baffle plate 14 of the upper right unit.
The upper right water passing partition plate 18 is a rectangular plane thin plate, and is vertically arranged in the upper artificial wetland right unit 1, and the number of the upper right water passing partition plate is 5. The upper edge of the upper right water passing partition plate 18 is flush with the upper edge of the upper layer artificial wetland right unit 1, and each upper right water passing partition plate 18 is tightly connected with the upper right unit front baffle plate 11, the upper right unit rear baffle plate 12 and the upper right unit bottom plate 15. The areas between the right water passing partition plates 18 at the left and right ends and the adjacent right baffle plates 13 and 14 are an upper right unit water inlet and distribution area 101 and an upper right unit water outlet and distribution area 102 respectively, and the lengths of the upper right unit water inlet and distribution area 101 and the upper right unit water outlet and distribution area 102 are about 1/10 of the length of the upper constructed wetland right unit 1. The area between two adjacent upper right water passing partition plates 18 is an upper right unit water treatment area 103, the total length of the upper right unit water treatment areas 103 is 4, and the length of the single upper right unit water treatment area 103 is 1/5 of the length of the upper constructed wetland right unit 1. The upper part of the upper right water passing clapboard 18 is provided with an upper right water passing hole 181.
The upper right water passing holes 181 are circular holes and are uniformly distributed on the upper portion of the upper right water passing partition plate 18, three rows are formed, and the distance from the center of the upper right water passing holes 181 on the upper row to the center of the upper edge of the upper right water passing partition plate 18 is 1/4 which is the height of the upper right water passing partition plate 18. And the clear distance between the adjacent upper right water passing holes 181 in each row is 1.5 times of the diameter of the upper right water passing holes 181, and the total open hole area of the upper right water passing holes 181 accounts for about 4-6% of the area of the upper right water passing partition plate 18.
The box body structures and the sizes of the upper artificial wetland left unit 2, the middle artificial wetland right unit 3, the middle artificial wetland left unit 4, the lower artificial wetland right unit 5 and the lower artificial wetland left unit 6 are all consistent with those of the upper artificial wetland right unit 1, and the upper artificial wetland right unit 1 and the upper artificial wetland left unit 2, the middle artificial wetland right unit 3 and the middle artificial wetland left unit 4, and the lower artificial wetland right unit 5 and the lower artificial wetland left unit 6 form a front-back symmetrical relation respectively about a plane formed by vertical central lines of the left upright post 7, the middle upright post 8 and the right upright post 9. The clear distances between the upper artificial wetland right unit 1 and the middle artificial wetland right unit 3, between the middle artificial wetland right unit 3 and the lower artificial wetland right unit 5, and between the upper artificial wetland left unit 2 and the middle artificial wetland left unit 4, and between the middle artificial wetland left unit 4 and the lower artificial wetland left unit 6 are equal, and are 1.2-1.5 times of the height of the artificial wetland units.
The middle right unit water inlet pipe 36 is a cylindrical hollow pipeline with two open ends, is horizontally arranged at the center of the lower part of the right side of the middle right unit right baffle 34, and is closely connected with a circular hole with the same diameter, which is arranged at the center of the middle right unit right baffle 34. The distance between the center line of the middle right unit inlet pipe 36 and the lower edge of the middle right unit right baffle 34 is 1/4 of the height of the middle right unit right baffle 34.
The horizontal short pipe at the lower end of the upper middle connecting pipe 17 of the right unit is tightly connected with the circular opening with the same diameter at the center of the upper part of the right baffle plate 34 of the middle right unit, and the distance between the pipe center line of the horizontal pipe at the lower end and the upper edge of the right baffle plate 34 of the middle right unit is 1/4 of the height of the right baffle plate 34 of the middle right unit.
The left unit middle and lower connecting pipe 37' -shaped cylindrical hollow pipeline with two open ends is formed by connecting two 90-degree elbows, two sections of horizontal short pipes and one section of vertical short pipe, and the height of the hollow pipeline is 1.5-2 times of the height of the upper artificial wetland left unit 1. The length of the upper horizontal section and the lower horizontal section of the lower connecting pipe 37 in the right unit is equal to 0.5 time of the length of the vertical section, and the length of the vertical section is 1 time of the height of the right unit 1 of the upper artificial wetland. The right end of the horizontal short pipe at the upper end of the right unit middle lower connecting pipe 37 is tightly connected with the opening at the center of the middle right unit left baffle 33.
The lower right unit water inlet pipe 56 is a cylindrical hollow pipeline with two open ends, is horizontally arranged at the center of the lower part of the left side of the lower right unit left baffle plate 53, and is tightly connected with a circular hole with the same diameter, which is arranged at the center of the lower right unit left baffle plate 53. The distance between the center line of the lower right-unit inlet pipe 56 and the lower edge of the lower right-unit left baffle 53 is 1/4 of the height of the lower right-unit left baffle 53.
The lower horizontal short pipe of the lower connecting pipe 37 in the right unit is closely connected with the opening at the center of the left side of the upper part of the lower right unit left baffle plate 53, and the distance between the pipe center line of the lower horizontal section and the upper edge of the lower right unit left baffle plate 53 is 1/4 of the height of the lower right unit left baffle plate 53.
The lower right unit water outlet pipe 57 is an L-shaped cylindrical hollow pipeline with two open ends, and is formed by connecting a 90-degree elbow, a horizontal short pipe and a vertical short pipe. The lower right unit water outlet pipe 57 has the same length as the horizontal short pipe and the vertical short pipe. The left end of the horizontal short pipe of the lower right unit water outlet pipe 57 is tightly connected with the opening at the right center of the lower right unit right baffle 54.
The diameters of various pipelines in the invention are equal to the diameters of the upper right unit water inlet pipes 16.
The left upright post 7, the middle upright post 8 and the right upright post 9 are square hollow upright posts, and the 3 upright posts are respectively assembled at the left end, the middle part and the right end of a gap formed between the left and right artificial wetland units. The front and rear outer walls of each upright post are closely attached to the rear baffle of each unit. The center distance between the adjacent upright columns is 2/5 of the length of the artificial wetland unit, and the center distances between the left upright column 7 and the right upright column 9 and the left and right outer walls of the artificial wetland unit are 1/10 of the length of the artificial wetland unit. The top ends of the left upright post 7, the middle upright post 8 and the right upright post 9 are flush with the upper edge of the upper artificial wetland right unit 1. The size of the lower edge of the lower-layer artificial wetland right unit 5 extending out of the bottom ends of the left upright post 7, the middle upright post 8 and the right upright post 9 is 2 times of the height of the lower-layer artificial wetland right unit 5. The bottom ends of the left upright post 7, the middle upright post 8 and the right upright post 9 are respectively and tightly connected with the central parts of the left base plate 71, the middle base plate 81 and the right base plate 91, and the bottom ends of the left upright post, the middle upright post and the right upright post are used for dispersing pressure conducted by the upright posts and preventing the upright posts from settling. The left base plate 71, the middle base plate 81 and the right base plate 91 are all square thin plates, and the side length of each square thin plate is 5 times of that of the upright column. Triangular supports 789 are arranged on the left upright post 7, the middle upright post 8 and the right upright post 9 to respectively support each layer of artificial wetland unit, and each artificial wetland unit is provided with 3 triangular supports 789 which are respectively closely connected with the outer walls of one sides of the left upright post 7, the middle upright post 8 and the right upright post 9 for 18 in total.
In addition, the main body (the upper artificial wetland right unit 1, the upper artificial wetland left unit 2, the middle artificial wetland right unit 3, the middle artificial wetland left unit 4, the lower artificial wetland right unit 5 and the lower artificial wetland left unit 6) of the invention can be made of PE, PVC or PPP materials with the thickness of 8 mm-10 mm through mould pressing, or can be made of stainless steel plates with the thickness of 1 mm-3 mm through sheet metal welding, and the left upright post 7, the middle upright post 8, the right upright post 9, the left base plate 71, the middle base plate 81, the right base plate 91, the triangular supports 789 and other parts can be made of steel or stainless steel. The length of each artificial wetland unit box body is 2000 mm-2200 mm, the width is 400 mm-500 mm, and the height is 400 mm-500 mm. The diameter of the water passing hole 181 is 6 mm-8 mm. The diameters of the upper right unit water inlet pipe 16, the middle right unit water inlet pipe 36 and the lower right unit water inlet pipe 56 are all 100mm, and the lengths of the upper right unit water inlet pipe, the middle right unit water inlet pipe and the lower right unit water inlet pipe are 200 mm-300 mm. The lengths of the horizontal sections of the upper middle connecting pipe 17 of the right unit and the middle lower connecting pipe 37 of the right unit are both 200 mm-300 mm, and the diameters of the horizontal sections are both 100 mm. The lengths of the horizontal short pipe and the vertical short pipe of the water outlet pipe 57 of the lower right unit are both 200 mm-300 mm. The lengths of the outer edges of the left upright post 7, the middle upright post 8 and the right upright post 9 are all 100mm, and the heights of the outer edges are 2700 mm-2900 mm. The left pad plate 71, the middle pad plate 81 and the right pad plate 91 are 5mm thick and 500mm long.
The working principle of the invention is as follows:
and (4) placing the place. The invention has small floor area, is suitable for the treatment of the daily domestic sewage of people, and can be placed in places such as streets, residential areas, riverway side banks and the like. After the sewage is treated by the invention to reach a certain effluent water quality standard, the sewage can be discharged nearby or reused for flushing toilets, sprinkling roads, washing vehicles, building water and the like.
And filling the matrix. The substrate provides a microenvironment for the life activities of microorganisms in the artificial wetland and can also play a physical adsorption role on certain pollutants. After the artificial wetland unit is assembled, the matrix is directly filled in the box body of the artificial wetland unit. The filling height of the matrix is preferably 350 to 450 mm. According to different treatment target pollutants, the composite material can be filled with different types or different sizes of matrixes or matrix combinations, such as water treatment micro-electrolysis iron carbon spheres, shale ceramisite, pebble, zeolite, biochar and the like.
And (5) planting aquatic plants. And planting the plants after the filling of the matrix is completed. The plant should be planted in the water treatment area, and the plant is preferably selected from the varieties which are native, strong in vitality and good in environmental adaptability. The aquatic plants with developed roots and large biomass are properly selected, so that the removal of pollutants is facilitated. After the plant is transplanted and the seedling is revived, nutrient solution can be prepared to promote the growth of the plant.
And (5) starting. After the plants grow stably, the pretreated sewage can be intermittently injected by the upper right unit water inlet pipe 16, the middle right unit water inlet pipe 36 and the lower right unit water inlet pipe 56 until water enters according to the normal water quantity. And simultaneously monitoring the water quality of inlet and outlet water. And after the quality of the effluent is stable, the artificial wetland can be considered to complete the starting stage. If the sewage inlet pressure cannot be guaranteed to be lifted to the upper right unit inlet pipe 16, the middle right unit inlet pipe 36 and the lower right unit inlet pipe 56, a water inlet lift pump needs to be configured to meet the water pressure requirement of inlet water.
And (5) operating. Sewage enters an upper right unit water inlet and distribution area 101 at the front end of an upper layer artificial wetland right unit 1 from an upper right unit water inlet pipe 16, when the water inlet level exceeds the height of an upper right water passing hole 181 of an upper right water passing partition plate 18, the sewage enters an upper right unit water treatment area 103, pollutants in the sewage enter an upper right unit water outlet and distribution area 102 at the tail end of the upper layer artificial wetland right unit 1 after passing through 4 continuous upper right unit water treatment areas 103 and after physical, chemical and biological combined actions of plants, microorganisms, matrixes and the like, the pollutants flow out of the upper layer artificial wetland right unit 1 after passing through the upper right unit water outlet and distribution area 102 and hydraulic condition regulation, the pollutants flow out of the upper layer artificial wetland right unit 1, flow into a middle right unit water inlet and distribution area 301 through a right unit upper middle connecting pipe 17, and the treatment process of the upper layer artificial wetland right unit 1 is repeated in a middle layer artificial wetland right unit 3. Similarly, the sewage treated by the middle-layer artificial wetland right unit 3 flows into the lower-layer artificial wetland right unit 5 through the right-unit middle-lower connecting pipe 37, is treated by the lower-layer artificial wetland right unit 5, and is discharged out of the system through the lower-right unit water outlet pipe 57. It should be noted that the middle right unit water inlet pipe 36 and the lower right unit water inlet pipe 56 can be started according to the variation degree of the quality of the inlet water and the difference of the organic matter removal of the sewage and the carbon source requirement in the denitrification process, and water can be simultaneously or respectively fed from the upper right unit water inlet pipe 16, the middle right unit water inlet pipe 36 and the lower right unit water inlet pipe 56, so as to balance the pollution load, reasonably distribute the carbon source, and improve the impact load resistance and denitrification efficiency of the system. Meanwhile, the water quality of the effluent can meet the requirements by adjusting the inflow and the hydraulic retention time according to different effluent quality standards and the change of the environmental temperature and by adjusting the inflow, so that the pollution load is changed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a three-dimensional horizontal undercurrent artificial wetland device of gyration, can fall into upper and middle three-layer, bilateral symmetry two units, including the upper artificial wetland right side unit on upper portion right side, the left upper artificial wetland left side unit in upper portion, the middle level artificial wetland right side unit on middle part right side, the left middle level artificial wetland left side unit in middle part, the lower floor artificial wetland right side unit on lower part right side, the left lower floor artificial wetland left side unit in lower part, the artificial wetland left and right sides left stand between the unit, the center pillar, the right stand, its characterized in that: the upper layer artificial wetland right unit is a hollow cuboid with an upper opening; the upper right water passing hole is arranged at the upper part of the upper right water passing clapboard; the upper right unit water inlet pipe is horizontally arranged at the center part of the left side of the upper right unit left baffle; the left end of the horizontal short pipe at the upper end of the upper middle connecting pipe of the right unit is connected with the center of the right baffle of the upper right unit; the middle right unit water inlet pipe is horizontally arranged at the center of the lower part of the right side of the middle right unit right baffle; the left end of the horizontal short pipe at the lower end of the upper middle connecting pipe of the right unit is connected with the center of the upper part of the right baffle of the middle right unit; the right end of the horizontal short pipe at the upper end of the right unit middle lower connecting pipe is connected with the center of the middle right unit left baffle; the lower right unit water inlet pipe is horizontally arranged at the center of the lower part of the left side of the lower right unit left baffle; the lower end of the lower connecting pipe in the right unit is connected with the left center of the upper part of the left baffle of the lower right unit; the left end of the horizontal short pipe of the water outlet pipe of the lower right unit is connected with the right center of the right baffle of the lower right unit.
2. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 1, which is characterized in that: the upper artificial wetland right unit is formed by an upper right unit front baffle, an upper right unit rear baffle, an upper right unit left baffle, an upper right unit right baffle and an upper right unit bottom plate enclosing baffle.
3. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 2, characterized in that: the upper right unit front baffle, the upper right unit rear baffle, the upper right unit left baffle, the upper right unit right baffle and the upper right unit bottom plate are rectangular plane thin plates.
4. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 1, which is characterized in that: the upper right water passing holes are uniformly distributed on the upper part of the upper right water passing partition plate and are arranged in three rows, and the distance between the upper right water passing holes in the upper row and the center of the upper edge of the upper right water passing partition plate is 1/4 the height of the upper right water passing partition plate; and the clear distance between the adjacent upper right water passing holes in each row is 1.5 times of the diameter of the upper right water passing holes, and the total area of the holes of the upper right water passing holes accounts for 4-6% of the area of the upper right water passing partition plate.
5. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 1, which is characterized in that: the upper right water passing partition plates are 5, the areas between the upper right water passing partition plates at the left and right ends and the adjacent upper right unit left baffle plates and upper right unit right baffle plates are an upper right unit water inlet and distribution area and an upper right unit water outlet and distribution area respectively, and the lengths of the upper right unit water inlet and distribution area and the upper right unit water outlet and distribution area are 1/10 of the length of the right unit of the upper artificial wetland; the area between two adjacent upper right water passing partition plates is an upper right unit water treatment area, 4 upper right unit water treatment areas are provided, and the length of the single upper right unit water treatment area is 1/5 the length of the right unit of the upper artificial wetland.
6. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 1, which is characterized in that: the upper middle connecting pipe of the right unit and the lower middle connecting pipe of the right unit are cylindrical hollow pipelines with openings at two ends in the shape of ']' and '[', and the height of the hollow pipelines is 1.0-1.2 times of the height of the right unit of the upper artificial wetland; the lengths of the upper horizontal section and the lower horizontal section of the upper connecting pipe and the middle connecting pipe of the right unit and the lower connecting pipe of the right unit are equal; the water outlet pipe of the lower right unit is an L-shaped cylindrical hollow pipeline with two open ends; the lengths of the horizontal short pipe and the vertical short pipe of the water outlet pipe of the lower right unit are equal.
7. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 1, which is characterized in that: the box body structures and the sizes of the upper layer artificial wetland left unit, the middle layer artificial wetland right unit, the middle layer artificial wetland left unit, the lower layer artificial wetland right unit and the lower layer artificial wetland left unit are all consistent with those of the upper layer artificial wetland right unit, the upper layer artificial wetland left unit, the middle layer artificial wetland right unit, the middle layer artificial wetland left unit, the lower layer artificial wetland right unit and the lower layer artificial wetland left unit respectively form a front-back symmetrical relation with respect to a plane formed by vertical central lines of the left stand column, the middle stand column and the right stand column, the clear distances between the upper layer artificial wetland right unit and the middle layer artificial wetland right unit, the middle layer artificial wetland right unit and the lower layer artificial wetland right unit and the clear distances between the upper layer artificial wetland left unit and the middle layer artificial wetland left unit, the middle layer artificial wetland left unit and the lower layer artificial wetland left unit are all equal, and is 1.2-1.5 times of the height of the artificial wetland unit.
8. The stereoscopic rotary horizontal subsurface flow constructed wetland device of claim 1, which is characterized in that: the left upright post, the middle upright post and the right upright post are square hollow upright posts, 3 upright posts are respectively assembled at the left end, the middle part and the right end of a gap formed between the three-layer left and right artificial wetland units, the front outer wall and the rear baffle plate of each unit are tightly attached together, the center distance between the adjacent upright posts is 2/5 of the length of the artificial wetland units, the center distances between the left upright post and the right upright post and the left outer wall and the right outer wall of the artificial wetland units are respectively 1/10 of the length of the artificial wetland units, the left upright post, the middle upright post and the right upright post are provided with triangular supports for respectively supporting each layer of artificial wetland units, each artificial wetland unit is provided with 3 triangular supports in total, and the number of the triangular supports is 18.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921708275.5U CN210736329U (en) | 2019-10-13 | 2019-10-13 | Three-dimensional rotary horizontal subsurface flow constructed wetland device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921708275.5U CN210736329U (en) | 2019-10-13 | 2019-10-13 | Three-dimensional rotary horizontal subsurface flow constructed wetland device |
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| Publication Number | Publication Date |
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| CN210736329U true CN210736329U (en) | 2020-06-12 |
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| CN201921708275.5U Expired - Fee Related CN210736329U (en) | 2019-10-13 | 2019-10-13 | Three-dimensional rotary horizontal subsurface flow constructed wetland device |
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| CN (1) | CN210736329U (en) |
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- 2019-10-13 CN CN201921708275.5U patent/CN210736329U/en not_active Expired - Fee Related
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Granted publication date: 20200612 Termination date: 20211013 |