CN109368809A - Efficient denitrification horizontal subsurface flow wetland - Google Patents
Efficient denitrification horizontal subsurface flow wetland Download PDFInfo
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- CN109368809A CN109368809A CN201811587685.9A CN201811587685A CN109368809A CN 109368809 A CN109368809 A CN 109368809A CN 201811587685 A CN201811587685 A CN 201811587685A CN 109368809 A CN109368809 A CN 109368809A
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- China
- Prior art keywords
- filter plate
- carbon source
- area
- efficient denitrification
- water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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 efficient denitrification horizontal subsurface flow wetlands, the efficient denitrification horizontal subsurface flow wetland includes current wetland bed, current wetland bed includes the water distribution area set gradually along water flow flow direction, carbon source adds area and undercurrent bed area, it includes the water inlet floor being stacked from bottom to top that carbon source, which adds area, carbon source packing layer and spilling water layer, it is added in water distribution area and carbon source and is provided with the first interlayer between area, and inlet opening is provided on the position corresponding with water inlet layer of the first interlayer, it is added in undercurrent bed area and carbon source and is provided with the second interlayer between area, and spillway hole is provided on the position corresponding with spilling water layer of the second interlayer.Carbon source packing layer in the efficient denitrification horizontal subsurface flow wetland can be improved the carbon-nitrogen ratio of sewage, carbon source is insufficient when solving the problems, such as denitrifying bacterium to sewage progress anti-nitration reaction, to improve the denitrification effect to sewage, have the advantages that structure is simple, nitric efficiency is high.
Description
Technical field
The present invention relates to current wetland technical fields, more particularly, to a kind of efficient denitrification horizontal subsurface flow wetland.
Background technique
Artificial swamp is the artificial ecological system simulating natural wetland and building, and is widely used in from the 1980s
The Study on purification of a variety of polluted-waters.And horizontal subsurface flow wetland is the artificial swamp type relatively mostly used at present.
Horizontal subsurface flow wetland is to afforest object as surface using water loving plant to allow sewage natural to permeate using sandstone soil as filler
The sewage purification engineering of filtering, sewage are entered by the water distribution area of horizontal subsurface flow wetland front end, and through wetland bed treatment and purification, finally
It is discharged again by current wetland end.In horizontal subsurface flow wetland system, on the one hand sewage can be filled in wetland bed internal flow
The effect that biomembrane, plant root system abundant and the topsoil and filler point grown using filler surface is shut off etc. improves it to dirt
Water treatment efficiency and processing capacity；On the other hand flowed below earth's surface due to water flow, have good heat insulating, treatment effect by
The feature that climatic effect is small, sanitary condition is preferable.
But horizontal subsurface flow wetland in the prior art is acted on merely with the oxygen therapy of root system of plant, to organic matter and a huge sum of money
It is preferable the removal effects such as to belong to, but denitrification effect is not good enough, and due to carbon-nitrogen ratio in China's municipal sewage (five-day BOD with
The ratio between total nitrogen content --- BOD5/ TN) universal relatively low (less than 4), there is a problem of denitrification denitrogenation carbon source deficiency, it usually needs
Additional carbon improves the denitrification effect of sewage.Such as fill out and add the raising carbon-nitrogen ratio such as methanol, acetic acid, sodium acetate, to enhance dirt
The denitrification effect of water.But these additional carbon economic costs are excessively high, unsuitable large-scale promotion.
The information disclosed in the background technology section is intended only to deepen the understanding to general background technology of the present invention, without
It should be considered as recognizing or implying in any form that the information constitutes the prior art known in those skilled in the art.
Summary of the invention
Present invention has been made in view of the above problems, and its purpose is to provide a kind of efficient denitrification horizontal subsurface flow wetlands.
The efficient denitrification horizontal subsurface flow wetland has the advantages that structure is simple, nitric efficiency is high, denitrogenation is at low cost.
The following technical scheme is adopted to achieve the purpose of the present invention:
The invention of first technical solution is a kind of efficient denitrification horizontal subsurface flow wetland, the efficient denitrification horizontal subsurface flow wetland packet
Current wetland bed is included,
The current wetland bed includes adding area and undercurrent bed along water distribution area, the carbon source that water flow flow direction is set gradually
Area,
It includes the water inlet floor, carbon source packing layer and spilling water floor being stacked from bottom to top that the carbon source, which adds area,
It is added in the water distribution area and the carbon source and is provided with the first interlayer between area, and in first interlayer and institute
It states into being provided with inlet opening on the corresponding position of water layer,
Added in undercurrent bed area and the carbon source and be provided with the second interlayer between area, and second interlayer with
The spilling water layer is provided with spillway hole on corresponding position.
In addition, the efficient denitrification horizontal subsurface flow wetland of the second technical solution, horizontal in the efficient denitrification of the first technical solution
On the basis of current wetland, the efficient denitrification horizontal subsurface flow wetland further includes aerator,
The aerator includes aerator, steam line and aeration blower, and the aerator is set to the water inlet
In layer, and it is connect by the steam line with the aeration blower.
In addition, the efficient denitrification horizontal subsurface flow wetland of third technical solution, horizontal in the efficient denitrification of the second technical solution
On the basis of current wetland, the regulating valve of the aeration quantity for adjusting the aerator is provided on the steam line.
In addition, the efficient denitrification horizontal subsurface flow wetland of the 4th technical solution, horizontal in the efficient denitrification of the first technical solution
On the basis of current wetland, permeable filler frame is provided in the carbon source packing layer, be loaded in the permeable filler frame by
Carbon source filler made of agricultural crop straw.
In addition, the efficient denitrification horizontal subsurface flow wetland of the 5th technical solution, horizontal in the efficient denitrification of the 4th technical solution
On the basis of current wetland, it is provided with feeding port at the top of the permeable filler frame, and be additionally provided on the feeding port
Filter plate,
The side of the filter plate is hinged by the top frame wall of hinge and the permeable filler frame, for opening or closing
The feeding port.
In addition, the efficient denitrification horizontal subsurface flow wetland of the 6th technical solution, horizontal in the efficient denitrification of the 5th technical solution
On the basis of current wetland, the filter plate includes the first filter plate and the second filter plate, and the hinge includes first axle and the
Two hinge,
First filter plate is installed on the close institute of the top frame wall of the permeable filler frame by the first axle
The side of the first interlayer is stated, second filter plate is installed on the top frame wall of the permeable filler frame by the second hinge
Close to second interlayer side.
In addition, the efficient denitrification horizontal subsurface flow wetland of the 7th technical solution, horizontal in the efficient denitrification of the 6th technical solution
On the basis of current wetland, the filter plate further includes latches, and the latches include being set on first filter plate
First latch handle, the second latch handle being set on second filter plate and tightening latch,
The tightening latch can be threaded onto first latch handle and second latch handle, to first mistake
Filter plate and second filter plate carry out clamping lock and fix.
In addition, the efficient denitrification horizontal subsurface flow wetland of the 8th technical solution, horizontal in the efficient denitrification of the 7th technical solution
On the basis of current wetland, drawstring is respectively arranged in first latch handle and second latch handle.
In addition, the efficient denitrification horizontal subsurface flow wetland of the 9th technical solution, horizontal in the efficient denitrification of third technical solution
On the basis of current wetland, valve well, the adjusting are additionally provided in the side close to the water distribution area of the current wetland bed
Feed water valve in valve and water supply pipe for supplying water to the water distribution area is respectively arranged in the valve well.
In addition, the efficient denitrification horizontal subsurface flow wetland of the tenth technical solution, horizontal in the efficient denitrification of the first technical solution
On the basis of current wetland, along water flow flow direction, the current wetland bed further includes the collection for being set to undercurrent bed area downstream
Pool, and the bottom of the gathering ground is provided with discharge pipe line.
In conjunction with above technical scheme, bring beneficial effect of the present invention is analyzed as follows:
The present invention provides a kind of efficient denitrification horizontal subsurface flow wetland, which includes that undercurrent is wet
Groundbed, current wetland bed include that area and undercurrent bed area are added along water distribution area, the carbon source that water flow flow direction is set gradually, and carbon source is thrown
Adding area includes the water inlet floor, carbon source packing layer and spilling water floor being stacked from bottom to top, is added between area in water distribution area and carbon source
It is provided with the first interlayer, and is provided with inlet opening on the position corresponding with water inlet layer of the first interlayer, in undercurrent bed area and carbon
Source adds and is provided with the second interlayer between area, and is provided with spillway hole on the position corresponding with spilling water layer of the second interlayer.
Above-mentioned efficient denitrification horizontal subsurface flow wetland is carrying out in use, sewage is discharged into water distribution area first, then via first
Inlet opening on interlayer successively flows into water inlet layer, carbon source packing layer and spilling water layer, finally again via the spillway hole on the second interlayer
Undercurrent bed area is flowed into, and carries out purified treatment in undercurrent bed area.Carbon source packing layer can be improved the carbon-nitrogen ratio of sewage, anti-to solve
The problem of carbon source deficiency when nitrifier is to sewage progress anti-nitration reaction, to improve the denitrification effect to sewage.
The efficient denitrification horizontal subsurface flow wetland has the advantages that structure is simple, nitric efficiency is high.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And structure specifically noted by attached drawing is achieved and obtained.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the vertical cross-sectional for the efficient denitrification horizontal subsurface flow wetland that the specific embodiment of the invention provides；
Fig. 2 is the schematic diagram of the filter plate in the efficient denitrification horizontal subsurface flow wetland that the specific embodiment of the invention provides.
Icon: 100- water distribution area；210- water inlet layer；220- carbon source packing layer；The first filter plate of 221-；The first bolt of 2210-
Lock handle；The second filter plate of 222-；The second latch handle of 2220-；223- tightening latch；224- drawstring；230- spilling water layer；300- undercurrent
Bed area；410- aerator；420- regulating valve；500- valve well；The gathering ground 600-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below according to the structure of efficient denitrification horizontal subsurface flow wetland provided by the invention, its specific embodiment is said
It is bright.
Fig. 1 is the vertical cross-sectional for the efficient denitrification horizontal subsurface flow wetland that the specific embodiment of the invention provides；Fig. 2 is this hair
The schematic diagram for the filter plate in efficient denitrification horizontal subsurface flow wetland that bright specific embodiment provides.
As depicted in figs. 1 and 2, a kind of efficient denitrification horizontal subsurface flow wetland is present embodiments provided, the efficient denitrification is horizontal
Current wetland includes current wetland bed, and current wetland bed includes the water distribution area 100 set gradually along water flow flow direction, carbon source throwing
Add area and undercurrent bed area 300, carbon source adds area and includes the water inlet floor 210 being stacked from bottom to top, carbon source packing layer 220 and overflow
Water layer 230 adds in water distribution area 100 and carbon source and is provided with the first interlayer between area, and in 210 pairs of layer of the first interlayer and water inlet
Be provided with inlet opening on the position answered, added in undercurrent bed area 300 and carbon source and be provided with the second interlayer between area, and second every
Spillway hole is provided on the position corresponding with spilling water layer 230 of layer.
The efficient denitrification horizontal subsurface flow wetland is carrying out in use, sewage is discharged into water distribution area 100 first, then via first every
Inlet opening on layer successively flows into water inlet layer 210, carbon source packing layer 220 and spilling water layer 230, finally again via on the second interlayer
Spillway hole flows into undercurrent bed area 300, and carries out purified treatment in undercurrent bed area 300.Carbon source packing layer 220 can be improved sewage
Carbon-nitrogen ratio, carbon source is insufficient when solving the problems, such as denitrifying bacterium to sewage progress anti-nitration reaction, to improve to sewage
Denitrification effect.The efficient denitrification horizontal subsurface flow wetland has the advantages that structure is simple, nitric efficiency is high.
Further, efficient denitrification horizontal subsurface flow wetland further includes aerator, and aerator includes aerator 410, supplies
Feed channel and aeration blower, aerator 410 are set into water layer 210, and are connect by steam line with aeration blower.
Aerator can be improved the dissolved oxygen amount of sewage, conducive to the bioactivity for improving aerobic nitrification bacterium, further increase
The nitric efficiency of the sewage of nitrifier pair, and aerator 410 is set into water layer 210, the output of aerator 410 can be made
Air can be upwardly into carbon source packing layer 220 with sewage, increase the time of air and waste water, be more advantageous to oxygen in dirt
It is dissolved in water.
Further, the regulating valve 420 of the aeration quantity for adjusting aerator is provided on steam line.
The aeration quantity of aerator can be adjusted in regulating valve 420 according to the actual flow of sewage, prevent aeration quantity
It is excessive or very few.
In addition, being provided with permeable filler frame in carbon source packing layer 220, it is loaded in permeable filler frame by crops straw
Carbon source filler made of stalk.
Compared with the method for traditional extraneous methanol, acetic acid to improve sewage carbon-nitrogen ratio, the present invention makees agricultural crop straw
It is fitted into carbon source packing layer 220 for carbon source filler and by permeable filler frame, it is also great while improving sewage carbon-nitrogen ratio
Reduce economic cost.
It is worth noting that permeable filler frame can prevent agricultural crop straw from therefrom leaking.
Further, it is provided with feeding port at the top of permeable filler frame, and is additionally provided with filter plate on feeding port, mistake
The side of filter plate is hinged by the top frame wall of hinge and permeable filler frame, for opening or closing feeding port.Such structure
Agricultural crop straw can be added convenient for supplementing toward permeable filler frame.
Further, filter plate include the first filter plate 221 and the second filter plate 222, hinge include first axle and
Second hinge, the first filter plate 221 are installed on close first interlayer of the top frame wall of permeable filler frame by first axle
Side, the second filter plate 222 are installed on the side close to the second interlayer of the top frame wall of permeable filler frame by second hinge.
Such structure filter plate that can be more convenient for opens or closes feeding port.
Still further, filter plate further includes latches, latches include the first bolt being set on the first filter plate 221
Lock handle 2210, the second latch handle 2220 being set on the second filter plate 222 and tightening latch 223, tightening latch 223 can be threaded onto
In first latch handle 2210 and the second latch handle 2220, to carry out clamping lock to the first filter plate 221 and the second filter plate 222
It is fixed.The lid conjunction fastness that latches can be improved filter plate to feeding port is set, by filter plate when preventing the discharge of sewage larger
Wash away opening.
Still further, being respectively arranged with drawstring 224 in the first latch handle 2210 and the second latch handle 2220.It draws
Rope 224 can be convenient for opening the first filter plate 221 and the second filter plate when toward permeable filler frame supplement addition agricultural crop straw
222。
In addition, being additionally provided with valve well 500, regulating valve 420 and use in the side of the close water distribution area 100 of current wetland bed
Feed water valve in the water supply pipe to supply water to water distribution area 100 is respectively arranged in valve well 500.Valve well 500 can be protected
Regulating valve 420 and feed water valve prevent from accidentally touching or extraneous factor are damaged.
In addition, current wetland bed further includes the gathering ground 600 for being set to 300 downstream of undercurrent bed area along water flow flow direction,
And the bottom of gathering ground 600 is provided with discharge pipe line.Such structure can be convenient for purified dirt in undercurrent bed area 300
Water discharge.
Specific structure of the invention is illustrated above, illustrates its usage mode below.
Above-mentioned efficient denitrification horizontal subsurface flow wetland is carrying out in use, sewage is discharged into water distribution area first, then via first
Inlet opening on interlayer successively flows into water inlet layer, carbon source packing layer and spilling water layer, finally again via the spillway hole on the second interlayer
Undercurrent bed area is flowed into, and carries out purified treatment in undercurrent bed area.Carbon source packing layer can be improved the carbon-nitrogen ratio of sewage, anti-to solve
The problem of carbon source deficiency when nitrifier is to sewage progress anti-nitration reaction, to improve the denitrification effect to sewage.
The structure of specific embodiments of the present invention is illustrated above, but not limited to this.
For example, efficient denitrification horizontal subsurface flow wetland further includes aerator in above-mentioned specific embodiment, aeration dress
It sets including aerator, steam line and aeration blower, aerator is set into water layer, and passes through steam line and aeration drum
Blower connection.
But not limited to this, can also be not provided with above-mentioned aerator, and it is wet not influence the efficient denitrification horizontal drowned flow equally
The normal usage function on ground, but according to the structure of specific embodiment, above-mentioned aerator is set, can be improved sewage
Dissolved oxygen amount reaches the nitric efficiency for further increasing the sewage of nitrifier pair conducive to the bioactivity for improving aerobic nitrification bacterium
Beneficial effect.
In addition, being provided with the aeration for adjusting aerator on steam line in above-mentioned specific embodiment
The regulating valve of amount.
But not limited to this, and above-mentioned regulating valve can also be not provided on steam line, does not influence aerator equally
Aeration oxygen supply function, but according to the structure of specific embodiment, above-mentioned regulating valve is set on steam line, tune can be reached
The aeration quantity for saving aerator, prevents aeration quantity excessive or very few beneficial effect.
In addition, permeable filler frame is provided in carbon source packing layer, in permeable filler in above-mentioned specific embodiment
The carbon source filler made of agricultural crop straw is loaded in frame.
But not limited to this, and the sawdust or some other carbonaceous materials that carbon source filler can be not configured to are, it can be achieved that for dirt
Water supplements carbon containing two function, but comes according to the structure of specific embodiment using agricultural crop straw as carbon source filler
Source is wide, economic cost is low.
In addition, being provided with feeding port at the top of permeable filler frame, and in feeding port in above-mentioned specific embodiment
On be additionally provided with filter plate, the side of filter plate is hinged by the top frame wall of hinge and permeable filler frame, for opening or closing
Close feeding port.
But not limited to this, and filter plate can be configured as more heavy pressing plate, it can be achieved that opening or closing feeding port
Function, but according to the structure of specific embodiment, filter plate is cut with scissors by the top frame wall of hinge and permeable filler frame
It connects, can reach convenient for opening or closing the beneficial effect of feeding port.
In addition, filter plate includes the first filter plate and the second filter plate, hinge include in above-mentioned specific embodiment
First axle and second hinge, the first filter plate are installed on close the first of the top frame wall of permeable filler frame by first axle
The side of interlayer, the second filter plate are installed on the one of close second interlayer of the top frame wall of permeable filler frame by second hinge
Side.
But not limited to this, filter plate can also only be set as one or three or more, it can be achieved that filter plate can pass through hinge
Chain opens or closes the function of feeding port.
In addition, filter plate further includes latches in above-mentioned specific embodiment, latches include being set to the first mistake
The first latch handle on filter plate, the second latch handle being set on the second filter plate and tightening latch, tightening latch can be threaded onto
In one latch handle and the second latch handle, fixed with carrying out clamping lock to the first filter plate and the second filter plate.
But not limited to this, can also be not provided with above-mentioned latches, and first above-mentioned the second filter plate of filter plate is arranged
Heavy pressing plate, the same function of can be achieved to close the lid of feeding port, but according to the structure of specific embodiment, be arranged above-mentioned
Latches, can reach and improve filter plate fastness is closed to the lid of feeding port, prevent from washing away filter plate when the discharge of sewage is larger
The beneficial effect of opening.
In addition, being respectively arranged in the first latch handle and the second latch handle in above-mentioned specific embodiment
Drawstring.
But not limited to this, can also be not provided with above-mentioned drawstring, is not influencing the first filter plate and the second filter plate equally just
The function being often used, but according to the structure of specific embodiment, above-mentioned drawstring is set, it can reach and be easy to open the first filtering
The beneficial effect of plate and the second filter plate.
In addition, being additionally provided with valve in the side of the close water distribution area of current wetland bed in above-mentioned specific embodiment
Feed water valve in Men Jing, regulating valve and water supply pipe for supplying water to water distribution area is respectively arranged in valve well.
But not limited to this, can also be not provided with above-mentioned valve well, does not influence the efficient denitrification horizontal subsurface flow wetland equally
Normal usage function, but according to the structure of specific embodiment, above-mentioned valve well is set, can reach protection regulating valve and
Feed water valve, the beneficial effect for preventing it from accidentally being touched or being damaged.
In addition, along water flow flow direction, current wetland bed further includes being set to undercurrent in above-mentioned specific embodiment
The gathering ground in bed area downstream, and the bottom of gathering ground is provided with discharge pipe line.
But not limited to this, can also be not provided with above-mentioned gathering ground, does not influence the efficient denitrification horizontal subsurface flow wetland equally
Normal usage function, but according to the structure of specific embodiment, above-mentioned gathering ground is set, can reach convenient for by undercurrent bed
The beneficial effect of purified sewage discharge in area.
In addition, efficient denitrification horizontal subsurface flow wetland of the invention, can be composed of the various structures of above embodiment,
Above-mentioned effect can equally be played.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of efficient denitrification horizontal subsurface flow wetland, it is characterised in that: including current wetland bed,
The current wetland bed includes adding area and undercurrent bed area along water distribution area, the carbon source that water flow flow direction is set gradually,
It includes the water inlet floor, carbon source packing layer and spilling water floor being stacked from bottom to top that the carbon source, which adds area,
Added in the water distribution area and the carbon source and be provided with the first interlayer between area, and first interlayer with it is described into
Water layer is provided with inlet opening on corresponding position,
Added in undercurrent bed area and the carbon source and be provided with the second interlayer between area, and second interlayer with it is described
Spilling water layer is provided with spillway hole on corresponding position.
2. efficient denitrification horizontal subsurface flow wetland according to claim 1, it is characterised in that:
The efficient denitrification horizontal subsurface flow wetland further includes aerator,
The aerator includes aerator, steam line and aeration blower, and the aerator is set in the water inlet layer,
And it is connect by the steam line with the aeration blower.
3. efficient denitrification horizontal subsurface flow wetland according to claim 2, it is characterised in that:
The regulating valve of the aeration quantity for adjusting the aerator is provided on the steam line.
4. efficient denitrification horizontal subsurface flow wetland according to claim 1, it is characterised in that:
It is provided with permeable filler frame in the carbon source packing layer, is loaded in the permeable filler frame by agricultural crop straw system
At carbon source filler.
5. efficient denitrification horizontal subsurface flow wetland according to claim 4, it is characterised in that:
It is provided with feeding port at the top of the permeable filler frame, and is additionally provided with filter plate on the feeding port,
The side of the filter plate is hinged by the top frame wall of hinge and the permeable filler frame, described for opening or closing
Feeding port.
6. efficient denitrification horizontal subsurface flow wetland according to claim 5, it is characterised in that:
The filter plate includes the first filter plate and the second filter plate, and the hinge includes first axle and second hinge,
First filter plate by the first axle be installed on the permeable filler frame top frame wall close to described the
The side of one interlayer, second filter plate are leaned on by the top frame wall that the second hinge is installed on the permeable filler frame
The side of nearly second interlayer.
7. efficient denitrification horizontal subsurface flow wetland according to claim 6, it is characterised in that:
The filter plate further includes latches, and the latches include the first bolt-lock handle being set on first filter plate
Hand, the second latch handle being set on second filter plate and tightening latch,
The tightening latch can be threaded onto first latch handle and second latch handle, to first filter plate
Clamping lock is carried out with second filter plate to fix.
8. efficient denitrification horizontal subsurface flow wetland according to claim 7, it is characterised in that:
Drawstring is respectively arranged in first latch handle and second latch handle.
9. efficient denitrification horizontal subsurface flow wetland according to claim 3, it is characterised in that:
Valve well is additionally provided with close to the side of the water distribution area in the current wetland bed, the regulating valve and for institute
The feed water valve stated in the water supply pipe of water distribution area water supply is respectively arranged in the valve well.
10. efficient denitrification horizontal subsurface flow wetland according to claim 1, it is characterised in that:
Along water flow flow direction, the current wetland bed further includes the gathering ground for being set to undercurrent bed area downstream, and in institute
The bottom for stating gathering ground is provided with discharge pipe line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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