CN105198085B - A kind of staged horizontal drowned flow artificial wet land combined system and its application - Google Patents
A kind of staged horizontal drowned flow artificial wet land combined system and its application Download PDFInfo
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- CN105198085B CN105198085B CN201510594040.8A CN201510594040A CN105198085B CN 105198085 B CN105198085 B CN 105198085B CN 201510594040 A CN201510594040 A CN 201510594040A CN 105198085 B CN105198085 B CN 105198085B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The present invention relates to a kind of staged horizontal drowned flow artificial wet land combined system and its application, the combined system is built according to clinoform and formed, including multistage according to the from top to bottom stepped distribution horizontal drowned flow artificial wet land unit set of ramp slope and the pipe network unit that horizontal drowned flow artificial wet land units at different levels are connected, horizontal drowned flow artificial wet land unit uses lateral inflow mode, and length direction bottom horizontal flow sheet of the current in horizontal drowned flow artificial wet land unit along horizontal drowned flow artificial wet land unit.Compared with prior art, the present invention breaks through the limitation that landform is applied to artificial swamp, hillside fields space, simple in construction, easy construction, cost can be made full use of cheap, all kinds of sewage disposals such as the regional sanitary sewage in the slopes such as mountain region, hills, water body sloping bank, municipal wastewater, industrial wastewater, animal husbandry sewage, agricultural non-point source pollution, rainwash, sewage treatment plant tail water are can be widely applied to, have greatly expanded the application of artificial swamp.
Description
Technical field
The invention belongs to ecological engineering technology field, be related to a kind of staged horizontal drowned flow artificial wet land combined system and its
Using.
Background technology
Water pollution is the great environmental problem that the world today faces, and is faced in China environmental protection mostly important
One of environmental problem.Due to largely receive for a long time the surface water body such as all kinds of sewage, China river, lake, reservoir generally by
Pollution, black and odorous water is result in, eutrophication, aquatic animals and plants are dead, and bio-diversity is reduced, and aquatic ecosystem degeneration etc. is all
More problems.Serious water pollution problems not only constrains the utilizability of all kinds of resources of water body, also directly affects the health of people
Existence and the sustainable development of social economy.
In recent years, the Artificial Wetland Techniques to grow up on the basis of natural wetland degrades sewage are widely used in dirt
Water process.The materials such as soil, sand, stone are artificially formed matrix by the natural imitation ecosystem by the technology by a certain percentage,
And the resistant plant by selection is planted, cultivate multiple-microorganism, Novel sewage cleaning system of the composition similar to natural wetland.
Artificial swamp mainly using the natural process processing sewage of wetland plant, soil and its related microorganisms, can not only be removed effectively
Suspension, organic pollution, nitrogen, phosphorus in sewage etc., and can effectively remove pathogenic microorganism, heavy metal, Algae toxins etc.
Exogenous bioactive substance.Artificial swamp by water level in stromal surface above and below, can be divided into surface current artificial wetland and
Drowned flow artificial wet land two types.Drowned flow artificial wet land can be divided into horizontal drowned flow, vertical subsurface flow and compound according to water (flow) direction again
Undercurrent three types.At present, artificial swamp has evolved into a kind of more complete and independent sewage disposal technology, in world's model
Application is widely available in enclosing, deal with objects include sanitary sewage, municipal wastewater, rainwash, agricultural non-point source pollution, mine are given up
Water, farm waste water etc., play a significant role in water pollution control.
Requirement of the existing artificial swamp to prepartion of land is extremely strict.It is empty to avoid the occurrence of slough and hypothallus top
Between leave unused, all kinds of Design of Constructed Wetland specifications are required to wetland bottom gradient no more than 1%.However, China is mountain more than one
The proportion that country, mountain region and hills landforms account for China land gross area is respectively 51.9% and 11.7%, is the important people in China
Mouth clustering area and industrial or agricultural distributed area.This kind of area is generally difficult to build down-stream because population and pollution sources are more scattered
Treatment facility focuses on to all kinds of sewage.Artificial swamp possesses that high treating effect, construction operation cost be low, maintenance management
The advantages that simple, extremely it is adapted to carry out purified treatment to dispersed pollution sources.However, this kind of area often lacks level land space,
Either cause artificial swamp construction cost caused by prepartion of land too high, or it can not be built because soil space is inadequate, greatly
Limit the application of artificial swamp.In addition, the important technology that artificial swamp controls as sewage purification and pollution of area source, is being intercepted
Purification also has good application prospect in terms of being discharged into the pollutant of water body.However, due to Urban Areas water body periphery level land often
Occupied, only surplus water body sloping bank is available for utilizing, and causes artificial swamp to be difficult to build.Therefore, one kind is developed not limited by landform
Artificial wet land system, for extend Artificial Wetland Techniques application have particularly important meaning.
For this problem, existing researcher has done desk study.As patent 200410065916.1 utilizes peg board setting
Plant species growing area, build multi-stage stepwise artificial wetland protection slope.Pollution of area source flows successively through plant species growing areas at different levels from top to bottom,
It is purified.However, the patent is substantially a kind of slope protection system, the effect that artificial swamp is detained simultaneously purified in situ sewage is unable to reach
Fruit.The inclined plane undercurrent artificial wetland of patent 200910199374.X exploitations has wetland pond body top half space can not water storage
Problem, the inclined plane undercurrent artificial wetland that patent 201310475839.6 is developed, which has pond body the latter half inclined-plane space, to be utilized
And pond body can not water storage problem, cause Constructed Wetland For Purifying space heavy compression, detergent power is limited.Patent
201210030589.0 the artificial wet land system available for slope with their own characteristics is developed respectively with 201410229651.8.So
And both artificial swamps exist wetland bottom need it is smooth the problem of, cause wetland build difficulty it is larger, construction cost compared with
It is high.Further, since using vertical current form, cause slope longitudinal space not to be utilized effectively, and exist water distribution pipe network compared with
For complexity, the problems such as increasing construction cost.Therefore, need invention badly and design a kind of novel artificial wetland system that can be applied to slope
System, solve the problems such as slope space can not effectively utilize, slough is excessive, construction cost is too high, construction difficulty is excessive.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind can make full use of sky
Between, the cheap staged horizontal drowned flow artificial wet land combination system that can be applied to all kinds of landform of simple in construction, easy construction, cost
System and its application.
By the present invention, it may be such that Artificial Wetland Techniques can be widely used in the slopes such as mountain region, hills, water body sloping bank area
Sanitary sewage, municipal wastewater, industrial wastewater, animal husbandry sewage, agricultural non-point source pollution, rainwash, sewage treatment plant tail water
Etc. all kinds of sewage disposals.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of staged horizontal drowned flow artificial wet land combined system, the combined system are built according to clinoform and formed, including
It is multistage to be dived according to the horizontal drowned flow artificial wet land unit of the from top to bottom stepped distribution setting of ramp slope and by levels at different levels
The pipe network unit that artificial wetland unit is connected, wherein, described horizontal drowned flow artificial wet land unit uses lateral inflow side
Formula, and length direction of the current in described horizontal drowned flow artificial wet land unit along horizontal drowned flow artificial wet land unit is horizontal
Flowing.
Described horizontal drowned flow artificial wet land unit is bar shaped horizontal drowned flow artificial wet land unit.
Described horizontal drowned flow artificial wet land unit includes pond body, the matrix being laid in pond body and is planted in matrix
Wetland plant；
Described pond body is domatic for bottom of pond with slope, and by exterior wall, interior wall and is arranged on entering between exterior wall and interior wall
Water end (W.E.) barricade, water side barricade, which enclose to set, to be formed；
The packed height of described matrix is less than on exterior wall along 5-20cm；
Planting density of the described wetland plant in matrix is 9-25 strains/m2。
Described pond body is strip pond body, length-width ratio≤10 of the strip pond body, and the height of described exterior wall is
0.5-4m, the height of interior wall is 0-1.5m.
Antiseepage film is hardened or mated formation to the bottom of pond of described strip pond body using concreting and geotextiles carry out antiseepage
Processing.
One or more of the filler in river sand, gravel, rubble, haydite, slag or zeolite in described matrix, institute
The wetland plant stated is selected from reed, floral leaf Lu Di, cattail, calamus, thaliadeabata, canna, cyperus alternifolius, mullet grass, arrowhead or pool
One or more in rushing down.
Horizontal drowned flow artificial wet land units at different levels are connected by described pipe network unit using the pattern of serial or parallel connection.
It is horizontal by water inlet pipe, outlet pipe and the neighbouring two-stage of connection when described pipe network unit uses series model
The connecting tube of drowned flow artificial wet land unit is formed, and the water (flow) direction phase of neighbouring two-stage horizontal drowned flow artificial wet land unit
Instead；
Described water inlet pipe is separately positioned on the water inlet end barricade of pond body in horizontal drowned flow artificial wet land unit with outlet pipe
And on the barricade of water side, and the difference in height of the horizontal level of the horizontal level of described water inlet pipe and outlet pipe is 2-15cm；
The water inlet pipe with the neighbouring two-stage horizontal drowned flow artificial wet land unit in the same side, the water outlet respectively of described connecting tube
Pipe is connected.
When described pipe network unit uses paralleling model, it is made up of water distributor, water inlet pipe, outlet pipe and drainage mechanism, and
And the water (flow) direction of horizontal drowned flow artificial wet land units at different levels is identical；
Described water inlet pipe is separately positioned on the water inlet end barricade of pond body in horizontal drowned flow artificial wet land unit with outlet pipe
And on the barricade of water side, and the difference in height of the horizontal level of the horizontal level of described water inlet pipe and outlet pipe is 2-15cm；
The water inlet pipe of described water distributor and horizontal drowned flow artificial wet land units at different levels is connected in parallel；
The outlet pipe of described drainage mechanism and horizontal drowned flow artificial wet land units at different levels is connected in parallel.
Described drainage mechanism is selected from one or both of drainpipe or drainage ditch.
A kind of application of staged horizontal drowned flow artificial wet land combined system, described staged horizontal drowned flow artificial wet land
Combined system is used for the clinoform that the gradient is 0-45 °.
Staged horizontal drowned flow artificial wet land combined system can will be covered according to practical application needs according to landform with parallel connection more
Formal freedom combination.
In the present invention, described horizontal drowned flow artificial wet land unit mainly includes the following steps that in building course：(a)
Repair domatic, remove ridge and fill and lead up recess；(b) its construction level drowned flow artificial wet land unit pond body, i.e., it is same on slope
Ground is excavated along at horizontal plane, builds hard exterior wall, water inlet end barricade and water side barricade, with domatic for bottom of pond, the above one
The exterior wall of level horizontal drowned flow artificial wet land unit is and common with exterior wall, water inlet end barricade, water side barricade, bottom of pond as interior wall
Form horizontal drowned flow artificial wet land unit pond body；Multiple horizontal drowned flow artificial wet land unit pond bodies are in ladder from top to bottom according to the gradient
Shape is distributed；(c) bottom of pond Anti-seeping technology, seepage control measure can use concreting to harden, or mat formation antiseepage film and geotextiles；
(d) matrix is loaded；(e) planting plants.
In actual building course, the series of horizontal drowned flow artificial wet land unit, shape, area and height between the superior and the subordinate
Degree is poor, can be according to parameter flexible designs such as features of terrain, water inlet pollutional load, effluent quality requirements, to be adapted to differently
Shape and sewage disposal demand.
Connected between horizontal drowned flow artificial wet land unit by pipe network unit, can according to water inlet pollutional load, effluent quality and
The design parameters such as wetland unit area, carry out the connected mode that selecting pipe net unit uses serial or parallel connection.
The hydraulic load of staged horizontal drowned flow artificial wet land combined system of the present invention, according to water inlet pollutional load, water outlet
The parameters such as water quality requirement determine, are 50~500mm/d with reference to span.And work as staged horizontal drowned flow artificial wet land combination system
When system uses paralleling model, the hydraulic load ratio of horizontal drowned flow artificial wet land units at different levels determines according to its volume ratio.
Present invention horizontal drowned flow artificial wet land units at different levels can use serial or parallel connection both of which, its connection mode, level
Number, shape, area and the discrepancy in elevation between the superior and the subordinate can be according to parameters such as features of terrain, water inlet pollutional load, effluent quality requirements
Flexible design, to be adapted to different terrain and sewage disposal demand.
Compared with existing Artificial Wetland Techniques, the present invention breaks through the limitation that landform is applied to artificial swamp, there is provided a kind of
Make full use of the cheap artificial wet land system that can be applied to all kinds of landform of hillside fields space, simple in construction, easy construction, cost and
Its application mode, it can be widely applied to the sanitary sewage, municipal wastewater, Industry Waste in the slopes such as mountain region, hills, water body sloping bank area
All kinds of sewage disposals such as water, animal husbandry sewage, agricultural non-point source pollution, rainwash, sewage treatment plant tail water, have greatly expanded people
The application of work wetland.
Compared with prior art, the invention has the characteristics that：
1) use horizontal drowned flow artificial wet land unit building technology, by multiple strip horizontal drowned flow artificial wet land units according to
The gradient is stepped to arrange from top to bottom, solves the problems, such as that hillside fields can not build artificial swamp, have developed one kind not by oblique
The artificial wet land system of hillside fields shape limitation, have greatly expanded the application of artificial swamp；
2) present invention creatively proposes wet by the multi-level water flow direction horizontal drowned flow artificial consistent with topographic contour
Ground unit composition, serial or parallel connection is carried out to multistage horizontal drowned flow artificial wet land unit according to design parameter, it is various to adapt to
The artificial wetland combination system of landform, because wetland unit water (flow) direction is consistent with topographic contour, wetland unit bottom bevel
Better purifying space is utilized effectively, and solves the problems, such as slough, simultaneously because can be wet with higher level along highest on subordinate's wetland unit
Along concordant on ground unit, slope upper space is utilized effectively, and improves wetland cost effectiveness, can effectively solve existing level stream
Wetland unit pond body be present can not water storage, the technical problem that pond body inside better purifying space is idle, wetland cost effectiveness is low；
3) present invention is in building course, it is not necessary to smooth, simple in construction, easy construction is carried out to soil, and then is reduced
Construction cost, efficiently solving existing vertical current needs slope excavate smooth, and cost is high, and difficulty of construction is big, water distribution
The problems such as system complex；
4) pipe network unit of the present invention is built simple, and water distribution is uniform, and then effectively saves pipe network cost；
5) present invention has very strong terrain adaptability and a flexibility, i.e., connection side between each horizontal drowned flow artificial wet land unit
Formula can flexibly select according to design parameters such as water inlet pollutional load, effluent quality and wetland unit areas, can also be according to reality
Situation will cover staged horizontal drowned flow artificial wet land combined system according to landform with parallel form independent assortment more, be suitable for difference
Landform, meet the pollution process demand of different waters, the scope of application is wider, has good application prospect.
Brief description of the drawings
Fig. 1 is staged horizontal drowned flow artificial wet land combined system structural representation in embodiment 1；
Fig. 2 is staged horizontal drowned flow artificial wet land combined system structure sectional view in embodiment 1；
Fig. 3 is horizontal drowned flow artificial wet land cellular construction sectional view in embodiment 1；
Fig. 4 is that staged horizontal drowned flow artificial wet land combined systems foundation landform are covered in embodiment 1 in the form of in parallel more
Independent assortment structural representation；
Fig. 5 is staged horizontal drowned flow artificial wet land combined system structural representation in embodiment 2；
Fig. 6 is staged horizontal drowned flow artificial wet land combined system structure sectional view in embodiment 2；
Fig. 7 is staged horizontal drowned flow artificial wet land combined system structural representation in embodiment 3.
Description of symbols in figure：
1-horizontal drowned flow artificial wet land unit, 2-pipe network unit, 3-pond body, 4-matrix, 5-plant, 6-exterior wall,
71-water inlet end barricade, 72-water side barricade, 8-bottom of pond, 9-water inlet pipe, 10-outlet pipe, 11-connecting tube, 12-cloth
Water pipe, 13-drainpipe, 14-drainage ditch, 15-water distributing area, 16-sedimentation basin.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
A kind of staged horizontal drowned flow artificial wet land combined system in the present embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, by three-level
Formed according to the rectangle horizontal drowned flow artificial wet land unit 1 and pipe network unit 2 of the gradient stepped distribution from top to bottom, level is latent
Connected in a series arrangement between artificial wetland unit 1.Horizontal drowned flow artificial wet land unit 1 is made up of pond body 3, matrix 4, plant 5.
Pond body 3 is total to by the exterior wall 6 of the superior and the subordinate's horizontal drowned flow artificial wet land unit 1, water inlet end barricade 71, water side barricade 72 and bottom of pond 8
With composition.Pipe network unit is by water inlet pipe 9, outlet pipe 10 and the connecting tube 11 for connecting the superior and the subordinate's horizontal drowned flow artificial wet land unit 1
Form.
The system applies to the purified treatment for entering river runoff pollution of certain city river.Because pipe network collection system is endless
It is kind, while lack and level land for sewage treatment facility construction, the sanitary sewage and rain dirt runoff in the section water catchment area converge
River course is directly discharged into by sewage ditch after collection.
This engineering builds artificial wet land treating system, to entering river runoff pollution by being made full use of to river bank hillside fields
Carry out purified treatment.Artificial wet land treating system addressing is at the bank slope by the sewage ditch, and about 30 ° of the slope slope angle, length of grade is about
30m.About 400 square metres of artificial wet land treating system floor space, the ton day of design treatment scale 120.Wetland Design influent quality
For the bad V classes of surface water quality standard, effluent quality standard is V class water.
As shown in figure 4, the present embodiment artificial wet land treating system includes diving so that 4 sets of stageds of parallel way connection are horizontal
Artificial wetland combined system and a sedimentation basin 16.Sedimentation basin 16 and 4 sets of staged horizontal drowned flow artificial wet land combined systems
Between connected by pipe network unit 2.Staged horizontal drowned flow artificial wet land combined system list set area is 90m2, by three-level area
It is in series for 15m × 2m rectangle horizontal drowned flow artificial wet land unit 1, outside three-level horizontal drowned flow artificial wet land unit 1
The height of wall 6 is respectively 1.2m, 1.7m, 2.2m under upper.The size of sedimentation basin 16 is 6m × 6m × 6m.
Its construction level subsurface flow constructed wetland combination system.First, repaired to domatic, remove ridge, fill and lead up depression
Place；Secondly, at the same level of slope along excavate ground, build outside the hard of three-level horizontal drowned flow artificial wet land unit 1
Wall 6 and water inlet end barricade 71, water side barricade 72.Water inlet end barricade 71, water side barricade 72 reserve water inlet pipe mouth, water outlet respectively
The mouth of pipe.Wherein, water inlet pipe mouth is lower 5cm than water inlet pipe mouth along 20cm, effluent pipe mouth on water inlet end barricade 71.With domatic for pond
Bottom 8, the superior and the subordinate's wetland exterior wall 6, water inlet end barricade 71, water side barricade 72 and bottom of pond 8 collectively form wetland unit pond body 3；Again
It is secondary, with concreting bottom of pond 8, harden antiseepage；Then, matrix 4 is loaded.20cm sections are water distributing area 15 before hypothallus water inlet end,
Fill the rubble that particle diameter is 20~50mm, the rubble that remainder filling particle diameter is 5~15mm.Hypothallus is filled on away from pond body
Along 20cm；Finally, planting plants 5.Three-level horizontal drowned flow artificial wet land unit 1 plants canna, again power respectively from top to bottom
Flower and iris.
Sedimentation basin 16 is built, i.e. sedimentation basin 16 is built at the sloping bank close to sewage ditch, is reinforced concrete structure.
Installing pipe net unit 2, i.e. pipe network unit 2 are by water distributor 12, water inlet pipe 9, outlet pipe 10, connecting tube 11 and drainpipe
13 compositions.Water distributor 12 connects sedimentation basin 16 and staged horizontal drowned flow artificial wet land combined system water inlet pipe 9.Drainpipe 13 connects
Connect staged horizontal drowned flow artificial wet land combined system outlet pipe 10.Water inlet pipe 9 is installed on horizontal drowned flow artificial wet land unit 1
Water inlet pipe mouth, and be connected with water distributor 12.Outlet pipe 10 is installed on the effluent pipe mouth of horizontal drowned flow artificial wet land unit 1.Connection
The upper end of pipe 11 is connected with the outlet pipe 10 of higher level's horizontal drowned flow artificial wet land unit 1, lower end and subordinate's horizontal drowned flow artificial wet land
The water inlet pipe 9 of unit 1 is connected.
Enter river runoff sewage and first introduce the progress preformed precipitate of sedimentation basin 16 through aqueduct, then by elevator pump through water distributor 12
Each staged horizontal drowned flow artificial wet land combined system is pumped into, river course is discharged into after Constructed Wetland For Purifying.This artificial wetland treatment
System has good clean-up effect to sewage, to COD, TP, TN, NH4 +- N clearance reaches 50-60%.
Embodiment 2：
A kind of staged horizontal drowned flow artificial wet land combined system in the present embodiment, as shown in Figure 5 and Figure 6, by level Four according to
The rectangle horizontal drowned flow artificial wet land unit 1 and pipe network unit 2 of the gradient stepped distribution from top to bottom are formed, horizontal drowned flow
Connected between artificial swamp unit 1 with parallel way.
The system is used to enter the net of river sewage treatment plant tail water using sewage treatment plant tail water as certain city river of moisturizing
Change is handled.Artificial wet land system addressing is at the bank slope that tail water arranges near mouth, about 25 ° of slope angle, length of grade about 40m.Manual moist
260 square metres of ground processing system footprint area, the ton day of design treatment scale 100.Wetland Design influent quality is one-level A standards,
Effluent quality standard is V class water.
The system is formed in parallel by the rectangle horizontal drowned flow artificial wet land unit 1 that level Four area is 25m × 2.6m, level Four
The height of exterior wall 6 of horizontal drowned flow artificial wet land unit 1 is respectively 1.2m, 1.5m, 1.8m, 2.1m under upper, plant plant from
Top to bottm is respectively canna, thaliadeabata and iris, calamus.
The system pipe network unit is made up of water distributor 12, water inlet pipe 9, outlet pipe 10 and drainpipe 13.Wherein, water distributor 12
The water inlet end immersible pump intraoral with being installed on Sewage Treatment Plant is connected, water side and four horizontal drowned flow artificial wet land units 1
Water inlet pipe 9 be connected.Drainpipe 13 is connected with the outlet pipe 10 of four horizontal drowned flow artificial wet land units 1.Water inlet pipe 9 is installed on
The water inlet pipe mouth of horizontal drowned flow artificial wet land unit 1, outlet pipe 7 are installed on the effluent pipe mouth of horizontal drowned flow artificial wet land unit 1.
The water inlet hydraulic load of horizontal drowned flow artificial wet land unit 1 is set according to pond body volume, passes through the valve on water inlet pipe 9
To control.The hydraulic load of the system level Four horizontal drowned flow artificial wet land unit 1 is followed successively by 14.3 ton days, 21.4 from top to bottom
Ton day, 28.6 ton days, 35.7 ton days.
Remaining is the same as embodiment 1.
Sewage treatment plant tail water is pumped into each horizontal drowned flow artificial wet land unit 1 by elevator pump through water distributor, through Manual moist
River course is discharged into after ground purification.This artificial wet land treating system has good clean-up effect, COD, TP, NH to pollutant4 +- N etc. is main
Water quality index has reached surface water V class standards.
Embodiment 3：
A kind of staged horizontal drowned flow artificial wet land combined system in the present embodiment, as shown in fig. 7, by level Four according to the gradient from
On down the horizontal drowned flow artificial wet land unit 1 of stepped distribution and pipe network unit 2 are formed.Horizontal drowned flow artificial wet land unit
Connected between 1 with parallel way, gesture is built into strip to pond body near the mountain.
The system is used for certain urban residents' community domestic wastewater treatment.Artificial wet land treating system addressing is arranged under mouth in sewage
Hillside at, slope angle is about 22 °.360 square metres of artificial wet land treating system floor space, it is 30m × 3m's by level Four area
Rectangle horizontal drowned flow artificial wet land unit 1 is formed in parallel, the ton day of design treatment scale 120.
Pipe network unit is made up of water distributor 12, water inlet pipe 9, outlet pipe 10 and drainage ditch 14.The water inlet end of water distributor 12 is with occupying
People's cell septic tank is connected, and water side is connected with four water inlet pipes 9 of horizontal drowned flow artificial wet land unit 1.Drainage ditch 14 is located at water
Flat drowned flow artificial wet land unit water outlet side.The water inlet hydraulic load of horizontal drowned flow artificial wet land unit 1 is set according to pond body volume,
Controlled by the valve on water inlet pipe 9, the hydraulic load of the system level Four horizontal drowned flow artificial wet land unit 1 is from upper
23.1 ton days, 27.7 ton days, 32.3 ton days, 36.9 ton days are followed successively by under.
Remaining is the same as embodiment 2.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to implementation here
Example, for those skilled in the art according to the announcement of the present invention, not departing from improvement that scope made and modification all should be
Within protection scope of the present invention.
Claims (3)
1. a kind of staged horizontal drowned flow artificial wet land combined system, it is characterised in that the combined system is built according to clinoform
Form, including multistage according to ramp slope from top to bottom it is stepped distribution set horizontal drowned flow artificial wet land unit (1) and
The pipe network unit (2) that horizontal drowned flow artificial wet land units (1) at different levels are connected, wherein, described horizontal drowned flow artificial wet land
Unit (1) uses lateral inflow mode, and the current in described horizontal drowned flow artificial wet land unit (1) are along horizontal drowned flow people
The length direction bottom horizontal flow sheet of work wetland unit (1)；
Described horizontal drowned flow artificial wet land unit (1) includes pond body (3), the matrix (4) being laid in pond body (3) and plantation
Wetland plant (5) in matrix (4)；
Described pond body (3) is domatic for bottom of pond (8) with slope, and by exterior wall (6), interior wall and is arranged on exterior wall (6) and interior wall
Between water inlet end barricade (71), water side barricade (72) encloses to set and forms；
The packed height of described matrix (4) is less than on exterior wall (6) along 5-20cm；
Planting density of the described wetland plant (5) in matrix (4) is 9-25 strains/m2；
Described pond body (3) is strip pond body (3), length-width ratio≤10 of the strip pond body (3), described exterior wall (6)
Highly it is 0.5-4m, the height of interior wall is 0-1.5m；
Antiseepage film is hardened or mated formation to the bottom of pond (8) of described strip pond body (3) using concreting and geotextiles are prevented
Ooze processing；
Horizontal drowned flow artificial wet land units (1) at different levels are connected by described pipe network unit (2) using the pattern of serial or parallel connection；
When described pipe network unit (2) uses series model, by water inlet pipe (9), outlet pipe (10) and connection neighbouring two
The connecting tube (11) of level horizontal drowned flow artificial wet land unit (1) is formed, and neighbouring two-stage horizontal drowned flow artificial wet land list
The water (flow) direction of first (1) is opposite；
Described water inlet pipe (9) and outlet pipe (10) are separately positioned on entering for pond body (3) in horizontal drowned flow artificial wet land unit (1)
On water end (W.E.) barricade (71) and water side barricade (72), and the water of the horizontal level of described water inlet pipe (9) and outlet pipe (10)
The difference in height that prosposition is put is 2-15cm；
The water inlet pipe of described connecting tube (11) two-stage horizontal drowned flow artificial wet land unit (1) neighbouring with the same side respectively
(9), outlet pipe (10) is connected；
When described pipe network unit (2) uses paralleling model, by water distributor (12), water inlet pipe (9), outlet pipe (10) and draught engine
Structure is formed, and the water (flow) direction of horizontal drowned flow artificial wet land unit at different levels (1) is identical；
Described water inlet pipe (9) and outlet pipe (10) are separately positioned on entering for pond body (3) in horizontal drowned flow artificial wet land unit (1)
On water end (W.E.) barricade (71) and water side barricade (72), and the water of the horizontal level of described water inlet pipe (9) and outlet pipe (10)
The difference in height that prosposition is put is 2-15cm；
Described water distributor (12) and the water inlet pipe (9) of horizontal drowned flow artificial wet land units (1) at different levels are connected in parallel；
Described drainage mechanism and the outlet pipe (10) of horizontal drowned flow artificial wet land units (1) at different levels are connected in parallel；
Described drainage mechanism is selected from one or both of drainpipe (13) or drainage ditch (14).
2. a kind of staged horizontal drowned flow artificial wet land combined system according to claim 1, it is characterised in that described
One or more of the filler in river sand, gravel, rubble, haydite, slag or zeolite in matrix (4), described wetland are planted
Thing (5) in reed, floral leaf Lu Di, cattail, calamus, thaliadeabata, canna, cyperus alternifolius, mullet grass, arrowhead or rhizoma alismatis one
Kind is a variety of.
3. a kind of application of staged horizontal drowned flow artificial wet land combined system as described in any one of claim 1 to 2, it is special
Sign is that described staged horizontal drowned flow artificial wet land combined system is used for the clinoform that the gradient is 0-45 °.
Priority Applications (1)
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