CN106396104A - High-efficient nitrogen removal type vertical flow artificial wetland and construction method thereof - Google Patents
High-efficient nitrogen removal type vertical flow artificial wetland and construction method thereof Download PDFInfo
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- CN106396104A CN106396104A CN201611056621.7A CN201611056621A CN106396104A CN 106396104 A CN106396104 A CN 106396104A CN 201611056621 A CN201611056621 A CN 201611056621A CN 106396104 A CN106396104 A CN 106396104A
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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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
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention provides a high-efficient nitrogen removal type vertical flow artificial wetland and a construction method thereof. A saturated layer and an unsaturated layer are arranged in a treating pond of the vertical flow artificial wetland, and waste water is circulated between the saturated layer of the treating pond and the unsaturated layer of the treating pond on the basis of a nitrogen removal mechanism of the vertical flow artificial wetland, so that oxygen can be supplied to the deep position of the wetland constantly, and the requirements of nitrifying bacteria and denitrifying bacteria for oxygen are met; and simultaneously, in the saturated layer, anaerobic bacteria can also take the maximum effect. Furthermore, an adjusting tank is filled with iron-ore slag, and the pH value of the waste water is adjusted by adjusting the iron-ore slag in the adjusting tank, so that the pH value of the waste water is in an optimal range for playing a role in the nitrifying bacteria, denitrifying bacteria and anaerobic ammonia bacteria, so that the anaerobic ammonia oxidation process is more obvious, and the nitrogen removal effect of the wetland is greatly improved.
Description
Technical field
The present invention relates to the building technology of a kind of wastewater treatment equipment for nitrogenous effluent denitrogenation and this device, belong to ring
Border engineering field.
Background technology
Nitrogen is one of key factor of body eutrophication.In agricultural production, a large amount of uses of formulation fertilizer containing nitrogen and food add
The processes such as work, aquaculture all can produce substantial amounts of nitrogenous effluent, and these waste water cause the rich battalion of water body after entering public water body
Fosterization.Body eutrophication causes algae to grow in a large number, and the oxygen in air can not spread in water, so that its in water body
Its biology is destroyed because of hypoxia death, ecosystem.Artificial swamp is the phase interaction of a kind of utilization substrate, microorganism and plant
Spend except the ecosystem of pollutant in water body, there is small investment, power consumption is low, easy to maintenance, the features such as environmental economical profit is good.
In recent years, it is widely used in China using the treatment technology that artificial swamp removes nitrogen in waste water.Artificial swamp is divided into
Free water surface wetland and vertical-flow wetland, vertical-flow wetland load is big, is difficult to be affected by temperature, precipitation, solar radiation etc., processes
Effect is significant.
Content of the invention
The present invention provides a kind of efficient denitrification type vertical current constructed wetland and its method of construction, and the present invention is in vertical subsurface flow
On the basis of the Nitrogen Removal Mechanism of wetland, by making circulation between the zone of saturation of processing pond and unsaturated layer for the waste water, make oxygen
The depths of wetland can be continually fed to, meet the nitrobacteria and denitrifying bacteria demand to oxygen, meanwhile, not
In zone of saturation, anaerobe also can play maximum effect, and the pH value by the Iron-ore Slag regulation waste water in regulating reservoir, makes waste water
PH value be in the optimum range that nitrobacteria, nitrite bacteria and anaerobism ammonium bacteria play a role, so that Anammox
Process is more notable, substantially increases the denitrification effect of wetland.
A kind of method of construction of efficient denitrification type vertical current constructed wetland of the present invention, comprises the steps：
(1) processing pond and the filling of processing pond substrate, are built：Excavating processing pond near the position of source of sewage, preferably excavating
The round pool of one radius 3-50m is as processing pond, and the pond depth of processing pond is according to formula H=V/3.14 × R2×
(1.2～2 times) calculating, wherein, H is pond to be dug depth, and V is the volume of single treatment waste water, and R is the radius in pond；Wherein,
The pool wall of processing pond and at the bottom of pond can conventionally with framework of steel reinforcement and concreting it is ensured that firm do not seep water；Upper
State in the processing pond completing, first insert the common stone of particle diameter 0.5-3cm, thickness is the deep 80-90% in processing pond pond, shakeouts,
Zone of saturation as processing pond；Then insert the stone of particle diameter 3-5cm above the stone of zone of saturation, thickness is that processing pond pond is deep
5-10%, shakeout, as the unsaturated layer of processing pond；
Build regulating reservoir and the filling of regulating reservoir substrate：In the side near processing pond, excavate regulating reservoir, preferably excavate one
, as regulating reservoir, pond depth is identical with processing pond for the round pool of radius 1-5m；Wherein, the pool wall of regulating reservoir and at the bottom of pond according to
Conventional method framework of steel reinforcement and concreting is not it is ensured that firm seep water；Regulating reservoir substrate is filled：Grain is inserted in regulating reservoir
The Iron-ore Slag of footpath 1-3cm, thickness is the deep 10-30% in regulating reservoir pond, shakeouts；
In this step, build processing pond and the filling of processing pond substrate and build between regulating reservoir and the filling of regulating reservoir substrate
There is no sequencing；If first building regulating reservoir, can first delimit the build scope of regulating reservoir, further according to the position of regulating reservoir
Build processing pond；Or delimit the position of regulating reservoir and processing pond simultaneously, then built again simultaneously；Additionally, processing pond
This can also be defined for any one existing shape of other than circular, the present invention with the shape of regulating reservoir；
(2), limbers is set：It is respectively provided with diameter between processing pond and two ponds of regulating reservoir on the pool wall of bottom position
The hole of 50-150cm, in processing pond for apopore, on regulating reservoir for inlet opening, hole be preferably shaped to circular hole；Wherein, locate
On reason pond and regulating reservoir, the diameter of the circular hole of setting may be the same or different；Afterwards, two holes are connected, for example with this two holes
Aperture connected with shape identical concrete or anti-aging plastics water pipe, and valve is set, is easy to the unlatching of this path
With closing；
(3), microbial growth：Gather fresh cattle manure, total amount is 1-1.5 times of zone of saturation volume in processing pond, is divided in
In container that can be airtight, in each container, it is simultaneously introduced the activated sludge picking up from sewage treatment plant, the amount of putting into is cattle manure volume
1-10%；Stir, such as stirring 3-5 time, then container is sealed, be placed on anaerobic fermentation 30- in 20-40 DEG C of environment
90 days；
(4), filter：The cattle manure liquid 20-40 mesh screen that step (3) fermentation is completed, collects filtrate；
(5), microbe inoculation：By the apopore closing of processing pond, at the cattle manure filtrate injection then step (4) being gathered
In the zone of saturation in reason pond, till zone of saturation is filled；Afterwards with plastic sheeting by after airtight 7-28 days suitable for reading for processing pond by cattle manure
Liquid is released, and completes microbial inoculant；
(6), waste water is put into and is circulated：After the completion of step (5), in 1-3 days, pending waste water is put into regulating reservoir, and
Open the valve between the apopore of processing pond and the inlet opening of regulating reservoir, and not with a water pump by the waste water in regulating reservoir simultaneously
It is pumped directly in the unsaturated layer of processing pond disconnectedly, so that waste water is circulated between processing pond and regulating reservoir, the following per hour of waste water
Circular rector is the 5-20% of total wastewater flow rate, the denitrogenation that can complete waste water in 3-7 days.
A kind of efficient denitrification type vertical current constructed wetland of the present invention, including the controllable connection in bottom processing pond and
Regulating reservoir, described processing pond includes thickness and is the deep 80-90% in processing pond pond and is filled with the common stone of particle diameter 0.5-3cm
Zone of saturation and thickness are the deep 5-10% in processing pond pond the stone structure by the particle diameter 3-5cm of filling above the stone of zone of saturation
The unsaturated layer becoming, being filled with thickness in described regulating reservoir is the deep 10-30% in regulating reservoir pond and the iron mine for 1-3cm for the particle diameter
Slag, the liquid level of described pending waste water is located in the unsaturated layer of described processing pond.
Compared with prior art, beneficial effects of the present invention are as follows：
The efficient denitrification type vertical current constructed wetland of the present invention and its method of construction are the denitrogenations using vertical subsurface flow wetland
Ability, by making circulation between zone of saturation and unsaturated layer for the waste water, makes oxygen can continually be fed to the depth of wetland
Place, meets the nitrobacteria and denitrifying bacteria demand to oxygen, meanwhile, in unsaturated layer, anaerobe also can play
Maximum effect, and the pH value of waste water is adjusted by the Iron-ore Slag of filling in regulating reservoir, make anaerobic ammonium oxidation process more notable, significantly
Improve the denitrification effect of wetland；The efficient denitrification type vertical current constructed wetland of the present invention has less investment, instant effect, ecological ring
The advantages of guarantor.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Specific embodiment
Below by embodiment, the present invention is described in further detail, but following embodiment is not limited to the present invention's
Protection domain.
Embodiment 1
The efficient denitrification type vertical current constructed wetland that the present embodiment provides and its method of construction are as follows：
(1), build processing pond：In the round pool one of position excavating radius 3m near source of sewage, pond depth is pressed
According to formula H=V/3.14 × R2× 1.2 calculating, wherein, H is pond to be dug depth, and V is the volume of single treatment waste water, and R is water
The radius in pond；Pool wall and at the bottom of pond conventionally with framework of steel reinforcement and concreting it is ensured that firm do not seep water, as process
Pond；
(2), processing pond substrate filling：In the processing pond that step (1) completes, first insert the common stone of particle diameter 0.5cm,
Thickness is deep 80% in processing pond pond, shakeouts, as the zone of saturation of processing pond；Then insert particle diameter above the stone of zone of saturation
The stone of 3cm, thickness is deep 10% in processing pond pond, shakeouts, as the unsaturated layer of processing pond；
(3), build regulating reservoir：Near step (1) processing pond side, the round pool of excavating radius 1m one,
Pond depth is identical with processing pond；Pool wall and at the bottom of pond conventionally use framework of steel reinforcement and concreting it is ensured that firm not
Infiltration, as regulating reservoir；
(4), regulating reservoir substrate filling：In the regulating reservoir that step (3) completes, insert the Iron-ore Slag of particle diameter 1cm, thickness is
The 10% of regulating reservoir pond depth, shakeouts；
(5), limbers is set：Divide on two pool walls of bottom position between two ponds that step (1) and step (3) complete
Not She Zhi diameter 50cm circular hole (in processing pond for apopore, on regulating reservoir for inlet opening), then with two circular holes
Aperture identical concrete or anti-aging plastics water pipe connect, and valve is set, is easy to open and close；
(6), microbial growth：Gather fresh cattle manure, total amount is 1 times of zone of saturation volume in step (2), is divided in permissible
In airtight container, in each container, it is simultaneously introduced the activated sludge picking up from sewage treatment plant, the amount of putting into is cattle manure volume
1%；Then container is sealed, is placed on anaerobic fermentation 30-90 days in 40 DEG C of environment by stirring 3 times；
(7), filter：Cattle manure liquid 20 mesh screen that step (6) fermentation is completed, collect filtrate；
(8), microbe inoculation：Step (7) is then gathered by the apopore closing of the processing pond that step (2) is completed
In the zone of saturation of cattle manure liquid implantation step (2) processing pond, till zone of saturation is filled；Will be suitable for reading for processing pond airtight with plastic sheeting
After 28 days, cattle manure liquid is released, complete microbial inoculant；
(9), waste water is put into and is circulated：After the completion of step (8), in 1 day, pending waste water is put into regulating reservoir, and open
Open the valve between two ponds, the waste water in regulating reservoir is constantly pumped in the unsaturated layer of processing pond with water pump, make waste water in Liang Chi
Between circulate, circulating load is the 5% of total wastewater flow rate per hour, the denitrogenation that can complete waste water in 7 days.
Embodiment 2
The efficient denitrification type vertical current constructed wetland that the present embodiment provides and its method of construction are as follows：
(1), build processing pond：In the round pool one of position excavating radius 30m near source of sewage, pond depth is pressed
According to formula H=V/3.14 × R2× 1.5 calculating, wherein, H is pond to be dug depth, and V is the volume of single treatment waste water, and R is water
The radius in pond；Pool wall and at the bottom of pond conventionally with framework of steel reinforcement and concreting it is ensured that firm do not seep water, as process
Pond；
(2), processing pond substrate filling：In the processing pond that step (1) completes, first insert the common stone of particle diameter 1.5cm,
Thickness is deep 85% in processing pond pond, shakeouts, as the zone of saturation of processing pond；Then insert particle diameter above the stone of zone of saturation
The stone of 4cm, thickness is deep 8% in processing pond pond, shakeouts, as the unsaturated layer of processing pond；
(3), build regulating reservoir：Near step (1) processing pond side, the round pool of excavating radius 2m one,
Pond depth is identical with processing pond；Pool wall and at the bottom of pond conventionally use framework of steel reinforcement and concreting it is ensured that firm not
Infiltration, as regulating reservoir；
(4), regulating reservoir substrate filling：In the regulating reservoir that step (3) completes, insert the Iron-ore Slag of particle diameter 2cm, thickness is
The 20% of regulating reservoir pond depth, shakeouts；
(5), limbers is set：Divide on two pool walls of bottom position between two ponds that step (1) and step (3) complete
Not She Zhi diameter 100cm circular hole, in processing pond for apopore, on regulating reservoir for inlet opening, then with two circular holes
Aperture identical concrete or anti-aging plastics water pipe connect, and valve is set, is easy to open and close；
(6), microbial growth：Gather fresh cattle manure, total amount is 1.2 times of zone of saturation volume in step (2), and being divided in can
, in airtight container, to be simultaneously introduced the activated sludge picking up from sewage treatment plant in each container, the amount of putting into is cattle manure volume
5%；Then container is sealed, is placed on anaerobic fermentation 60 days in 30 DEG C of environment by stirring 4 times；
(7), filter：Cattle manure liquid 30 mesh screen that step (6) fermentation is completed, collect filtrate；
(8), microbe inoculation：Step (7) is then gathered by the apopore closing of the processing pond that step (2) is completed
In the zone of saturation of cattle manure liquid implantation step (2) processing pond, till zone of saturation is filled；Will be suitable for reading for processing pond airtight with plastic sheeting
After 14 days, cattle manure liquid is released, complete microbial inoculant；
(9), waste water is put into and is circulated：After the completion of step (8), in 2 days, pending waste water is put into regulating reservoir, and open
Open the valve between two ponds, the waste water in regulating reservoir is constantly pumped in the unsaturated layer of processing pond with water pump, make waste water in Liang Chi
Between circulate, circulating load is the 10% of total wastewater flow rate per hour, the denitrogenation that can complete waste water in 5 days.
Embodiment 3
The efficient denitrification type vertical current constructed wetland that the present embodiment provides and its method of construction are as follows：
(1), build processing pond：In the round pool one of position excavating radius 50m near source of sewage, pond depth is pressed
According to formula H=V/3.14 × R2× 2 calculating, wherein, H is pond to be dug depth, and V is the volume of single treatment waste water, and R is pond
Radius；Pool wall and at the bottom of pond conventionally with framework of steel reinforcement and concreting it is ensured that firm do not seep water, as process
Pond；
(2), processing pond substrate filling：In the processing pond that step (1) completes, first insert the common stone of particle diameter 3cm, thick
Spend 90% for processing pond pond depth, shakeout, as the zone of saturation of processing pond；Then insert particle diameter 5cm's on the stone of zone of saturation
Stone, thickness is deep 10% in processing pond pond, shakeouts, as the unsaturated layer of processing pond；
(3), build regulating reservoir：Near step (1) processing pond side, the round pool of excavating radius 5m one,
Pond depth is identical with processing pond；Pool wall and at the bottom of pond conventionally use framework of steel reinforcement and concreting it is ensured that firm not
Infiltration, as regulating reservoir；
(4), regulating reservoir substrate filling：In the regulating reservoir that step (3) completes, insert the Iron-ore Slag of particle diameter 3cm, thickness is
The 30% of regulating reservoir pond depth, shakeouts；
(5), limbers is set：Divide on two pool walls of bottom position between two ponds that step (1) and step (3) complete
Not She Zhi diameter 150cm circular hole, in processing pond for apopore, on regulating reservoir for inlet opening, then with two circular holes
Aperture identical concrete or anti-aging plastics water pipe connect, and valve is set, is easy to open and close；
(6), microbial growth：Gather fresh cattle manure, total amount is 1.5 times of zone of saturation volume in step (2), and being divided in can
, in airtight container, to be simultaneously introduced the activated sludge picking up from sewage treatment plant in each container, the amount of putting into is cattle manure volume
10%；Then container is sealed, is placed on anaerobic fermentation 90 days in 20 DEG C of environment by stirring 5 times；
(7), filter：Cattle manure liquid 40 mesh screen that step (6) fermentation is completed, collect filtrate；
(8), microbe inoculation：Step (7) is then gathered by the apopore closing of the processing pond that step (2) is completed
In the zone of saturation of cattle manure liquid implantation step (2) processing pond, till zone of saturation is filled；Will be suitable for reading for processing pond airtight with plastic sheeting
After 28 days, cattle manure liquid is released, complete microbial inoculant；
(9), waste water is put into and is circulated：After the completion of step (8), in 3 days, pending waste water is put into regulating reservoir, and open
Open the valve between two ponds, the waste water in regulating reservoir is constantly pumped in the unsaturated layer of processing pond with water pump, make waste water in Liang Chi
Between circulate, circulating load is the 20% of total wastewater flow rate per hour, the denitrogenation that can complete waste water in 7 days.
The present invention processing pond be provided with unsaturated layer (part that top is not totally submerged by waste water) and zone of saturation (under
Portion is in the part of waste water submergence all the time), unsaturated layer is mainly used in air circulation, increases the oxygen content of wastewater surface, is
Aerobic nitrobacteria and nitrite bacteria provide sufficient oxygen, thus improving its nitrification and nitrosation ability, and lower floor satisfies
With layer due to not having air to enter, define anoxic space, convenience can be provided for anaerobic ammonium oxidizing bacteria.In processing pond
The setting of unsaturated layer and zone of saturation improves the nitric efficiency to waste water for the artificial swamp.
The present invention adds Iron-ore Slag in regulating reservoir, for adjusting the pH value of waste water so as to be in nitrobacteria, nitrosation
The optimum range that antibacterial and anaerobism ammonium bacteria play a role, thus improve nitric efficiency.
The vertical subsurface flow wetland that the present invention is built by above-mentioned particular design, makes the denitrification functions of microorganism significantly carry
Height, has the advantages that less investment, instant effect, ecological, environmental protective.
Present invention disclosed above preferred embodiment is only intended to help illustrate the present invention.Preferred embodiment is not detailed
Describe all of details, also do not limit the specific embodiment that this invention is only described.Obviously, the content according to this specification,
Can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (8)
1. a kind of method of construction of efficient denitrification type vertical current constructed wetland is it is characterised in that comprise the steps：
(1) processing pond and the filling of processing pond substrate, are built：Excavate processing pond in the position of close source of sewage, and make processing pond
At the bottom of pond and pool wall is firm does not seep water；Then in processing pond, first insert the common stone of particle diameter 0.5-3cm, thickness is to process
The 80-90% of Chi Chishen, shakeouts, as the zone of saturation of processing pond；Then insert particle diameter 3-5cm's above the stone of zone of saturation
Stone, thickness is the deep 5-10% in processing pond pond, shakeouts, as the unsaturated layer of processing pond；
Build regulating reservoir and the filling of regulating reservoir substrate：In the side near processing pond, excavate regulating reservoir, adjust tank depth and process
Pond is identical, and makes the at the bottom of pond of regulating reservoir and pool wall is firm does not seep water；The Iron-ore Slag of particle diameter 1-3cm is inserted in regulating reservoir, thick
Spend the 10-30% for regulating reservoir pond depth, shakeout；
(2), limbers is set：It is respectively provided with hole on the pool wall of bottom position between processing pond and two ponds of regulating reservoir, process
On pond for apopore, on regulating reservoir for inlet opening；Afterwards, two holes are connected, and valve is set；
(3), microbial growth：Gather fresh cattle manure, total amount is 1-1.5 times of zone of saturation volume in processing pond, is divided in permissible
In airtight container, in each container, it is simultaneously introduced the activated sludge picking up from sewage treatment plant, the amount of putting into is the 1- of cattle manure volume
10%；Stir, then container is sealed, be placed on anaerobic fermentation 30-90 days in 20-40 DEG C of environment；
(4), filter：The cattle manure liquid 20-40 mesh screen that step (3) fermentation is completed, collects filtrate；
(5), microbe inoculation：By the apopore closing of processing pond, then the cattle manure filtrate that step (4) gathers is injected processing pond
Zone of saturation in, till zone of saturation is filled；Cattle manure liquid is put by after airtight 7-28 days suitable for reading for processing pond with plastic sheeting afterwards
Go out, complete microbial inoculant；
(6), waste water is put into and is circulated：After the completion of step (5), in 1-3 days, pending waste water is put into regulating reservoir, and open
Valve between the apopore of processing pond and the inlet opening of regulating reservoir, and constantly with a water pump by the waste water in regulating reservoir simultaneously
It is pumped directly in the unsaturated layer of processing pond, so that waste water is circulated between processing pond and regulating reservoir, the circulating load per hour of waste water
For the 5-20% of total wastewater flow rate, the denitrogenation that waste water can be completed in 3-7 days.
2. the method for construction of efficient denitrification type vertical current constructed wetland as claimed in claim 1 is it is characterised in that described process
Pond is the round pool of a radius 3-50m, and the pond depth of processing pond is according to formula H=V/3.14 × R2× (1.2～
2 times) calculate, wherein, H is pond to be dug depth, and V is the volume of single treatment waste water, and R is the radius in pond.
3. the method for construction of efficient denitrification type vertical current constructed wetland as claimed in claim 1 is it is characterised in that described regulation
Pond is the round pool of a radius 1-5m.
4. the method for construction of efficient denitrification type vertical current constructed wetland as claimed in claim 1 is it is characterised in that described process
The inlet opening of the apopore in pond and regulating reservoir is the circular hole of diameter 50-150cm.
5. a kind of efficient denitrification type vertical current constructed wetland is it is characterised in that include the processing pond in the controllable connection in bottom
And regulating reservoir, described processing pond includes thickness and is the deep 80-90% in processing pond pond and is filled with the common stone of particle diameter 0.5-3cm
Zone of saturation and thickness be the deep 5-10% in processing pond pond the stone by the particle diameter 3-5cm of filling above the stone of zone of saturation
The unsaturated layer constituting, being filled with thickness in described regulating reservoir is the deep 10-30% in regulating reservoir pond and the iron mine for 1-3cm for the particle diameter
Slag, the liquid level of described pending waste water is located in the unsaturated layer of described processing pond.
6. efficient denitrification type vertical current constructed wetland as claimed in claim 5 is it is characterised in that described processing pond is one and half
The round pool of footpath 3-50m, and the pond depth of processing pond is according to formula H=V/3.14 × R2× (1.2～2 times) calculating,
Wherein, H is pond to be dug depth, and V is the volume of single treatment waste water, and R is the radius in pond.
7. the method for construction of efficient denitrification type vertical current constructed wetland as claimed in claim 5 is it is characterised in that described regulation
Pond is the round pool of a radius 1-5m.
8. the method for construction of efficient denitrification type vertical current constructed wetland as claimed in claim 5 is it is characterised in that described process
Pond is realized by following structure in controllable connection the in bottom with regulating reservoir：The pool wall of bottom position between processing pond and regulating reservoir
On be respectively provided with hole, in processing pond for apopore, on regulating reservoir for inlet opening, and the apopore of described processing pond and tune
The inlet opening in section pond is the circular hole of diameter 50-150cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056621.7A CN106396104B (en) | 2016-11-25 | 2016-11-25 | efficient denitrification type vertical flow constructed wetland and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056621.7A CN106396104B (en) | 2016-11-25 | 2016-11-25 | efficient denitrification type vertical flow constructed wetland and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106396104A true CN106396104A (en) | 2017-02-15 |
| CN106396104B CN106396104B (en) | 2019-12-13 |
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| CN201611056621.7A Active CN106396104B (en) | 2016-11-25 | 2016-11-25 | efficient denitrification type vertical flow constructed wetland and construction method thereof |
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| CN111410365A (en) * | 2020-04-01 | 2020-07-14 | 中国科学院生态环境研究中心 | Sanitary drainage and pollution treatment method |
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| CN106396104B (en) | 2019-12-13 |
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