CN107935190A - A kind of reoxygenation type drowned flow artificial wet land - Google Patents
A kind of reoxygenation type drowned flow artificial wet land Download PDFInfo
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- CN107935190A CN107935190A CN201711417183.7A CN201711417183A CN107935190A CN 107935190 A CN107935190 A CN 107935190A CN 201711417183 A CN201711417183 A CN 201711417183A CN 107935190 A CN107935190 A CN 107935190A
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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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Abstract
The reoxygenation type drowned flow artificial wet land of the present invention includes vertical subsurface flow wetland unit, reoxygenation unit and horizontal subsurface flow wetland unit, it is not necessary to which extra personnel carry out artificial oxygenation using aerator, can increase oxygen naturally in water inlet, its principle is:The reduced diameter of helix tube, hydraulic pressure increase, and helix tube ejects spiral helicine current, can cause small whirlpool in water, is conducive to the oxygen in air and dissolves in water the oxygen content for increasing water.In addition, the present invention can obtain excellent wastewater purification effect using unique filler formulation, oyster broken shell is with good adsorptivity and it is with the trickle aperture of multilayer, be conducive to beneficial microbe growth, organic matter and digestion in microorganism decomposable asymmetric choice net waste water decompose nitrogen, meanwhile add after certain proportion oyster shell and P elements and sufficient calcium ion can be provided for wetland plant effectively in adsorbed water body, promotion wetland plant growth and development.Arrange in pairs or groups in right amount in slightly alkaline oyster broken shell and slightly acid granite stones, the pH value of water quality can be maintained between 6 ~ 8.
Description
Technical field
The present invention relates to Artificial Wetland Techniques field, more particularly to a kind of reoxygenation type drowned flow artificial wet land.
Background technology
Artificial swamp is by artificially control condition, utilizes wetland complicated special physics, chemistry and biological synthesis energy
Power function purifies the quashy ground system of class of sewage.Most manually wetlands are all made of four parts:1)Filler, again
Referred to as matrix, such as soil, fine sand, coarse sand, gravel, the different ratio of different filler components all seriously affect artificial swamp
Comprehensive performance;2)Plant, is adapted to the water plant grown in water, such as reed, canna, crinum asiaticum;3)Microorganism, is attached to
Root system of plant and filler surface, play Pollutants in Wastewater main degradation;4)Aquatic insect.Because artificial swamp capital construction is thrown
Rate were widely used in processing sanitary sewage with the features such as low, detergent power is strong, operating cost is low.According to system water distribution side
The difference of formula or the type of flow, is divided into three kinds by artificial swamp:Surface current artificial wetland;Horizontal drowned flow artificial wet land;Vertically
Artificial wetland.At present, artificial swamp is poor for the effect for handling high ammonia-nitrogen wastewater, it is dissolved after this enters wetland with waste water
Oxygen level constantly declines related, and in the posterior segment of wet land system, it is less efficient that oxygen in water deficiency of giving up becomes wetland purification
Main cause.
Therefore, for of the prior art there are problem, it is urgent to provide a kind of ammonia nitrogen in waste water removal rate height, wetland purification effect
The good Artificial Wetland Techniques of fruit.
The content of the invention
Kind of ammonia nitrogen in waste water removal rate height, a wetland are provided it is an object of the invention to avoid shortcoming of the prior art
The artificial swamp of good purification.
The purpose of the present invention is achieved through the following technical solutions:
A kind of reoxygenation type drowned flow artificial wet land includes vertical subsurface flow wetland unit, reoxygenation unit and horizontal subsurface flow wetland unit,
The area ratio of vertical subsurface flow wetland unit, reoxygenation unit and horizontal subsurface flow wetland unit is 3:1:3~1:1:1, and vertical subsurface flow is wet
Ground unit and horizontal subsurface flow wetland unit are located at the both sides of reoxygenation unit respectively,
The top of vertical subsurface flow wetland unit is provided with horizontally disposed water-distributing device, and water-distributing device is equipped with supervisor and is interspersed
Branch pipe in supervisor both sides, is responsible for the water distributing pore that each 10cm ~ 20cm is provided with diameter 3mm ~ 6mm,
The lower section of water-distributing device is packing layer, and the bottom of packing layer is water filter plate, and the concrete of 5cm ~ 10cm is lined with water filter plate
Brick, and charge for remittance layer is equipped with the bottom of vertical subsurface flow wetland unit, charge for remittance layer is communicated with reoxygenation unit;
The discharge outlet of the water inlet pipe of reoxygenation unit is equipped with helix tube, and the diameter of helix tube gradually contracts from water inlet toward water outlet direction
It is narrow, and the tube wall of helix tube is provided with multiple pores along the hand of spiral;
Horizontal subsurface flow wetland unit top is equipped with downflow weir close to the water inlet side of reoxygenation unit, is arranged to 5cm ~ 10cm equilateral three
Angular zigzag, and downflow weir is not higher than the water surface in vertical subsurface flow wetland unit,
Another side lower part of horizontal subsurface flow wetland unit is equipped with captation, and captation is perforated by two pieces of 10cm ~ 20cm length of sides
Cement plate is bonded, and water installations are collected with bottom of pond, pool wall composition square, the wall of captation at interval of 50cm ~ 100cm at
Perforate, aperture 5cm ~ 10cm;
The water plant such as vertical subsurface flow wetland unit and horizontal subsurface flow wetland cell surface plantation canna, 3 ~ 5/m of planting density2;
The packing layer of vertical subsurface flow wetland unit and horizontal subsurface flow wetland unit includes the material of following parts by weight:
80 ~ 90 parts of gravel
5 ~ 8 parts of oyster broken shell
10 ~ 15 parts of granite stones.
Preferably, the highest water surface absolute altitude and horizontal subsurface flow wetland of vertical subsurface flow wetland unit filler absolute altitude, reoxygenation unit
The bed of material absolute altitude that unit is filled out is in the trend that gradually decreases, and adjacent cells absolute altitude difference is no less than 5cm.
Preferably, by current direction, by 1 ‰ ~ 3 ‰, that drop design for whole wet land system bottom;Wet land filler depth 50cm ~
100cm。
Preferably, oyster broken shell is crushed and obtained again by raw oyster shell when baking 1 is small at a temperature of 80 DEG C ~ 100 DEG C.
Preferably, the average grain diameter of filler is particle diameter 2cm ~ 5cm.
Preferably, the predominant tube diameter of the water-distributing device of vertical subsurface flow wetland unit is 40mm ~ 90mm.
The filler layer depth of preferable vertical subsurface flow wetland unit and horizontal subsurface flow wetland unit is 50cm ~ 100cm.
Beneficial effects of the present invention:
The reoxygenation type drowned flow artificial wet land of the present invention includes vertical subsurface flow wetland unit, reoxygenation unit and horizontal subsurface flow wetland list
Member, waste water enter water-distributing device by water pump, waste water can be uniformly distributed in vertical subsurface flow wetland unit surface, waste water is through this list
Enter reoxygenation unit by bottom collection water installations after member processing;Reoxygenation unit is divided to natural reaeration or artificial-strengthening reoxygenation two kinds of shapes
Formula, can improve the dissolved oxygen levels into the water inlet of horizontal trend wetland unit, and increase contaminant removal efficiency;Reoxygenation unit goes out
Water enters horizontal subsurface flow wetland unit by downflow weir, using will be through in cornerwise wetland bottom collection water installations with water inlet end
Tail water after wetland variation is discharged by top discharge outlet.The helix tube by the use of special construction of the present invention is used as reoxygenation unit
Automatic aeration device, better than natural reaeration effect, the reoxygenation time is short, lower than using aerator cost, more saves the energy, and
And it is not required extra personnel to carry out artificial oxygenation using aerator, oxygen can be increased naturally in water inlet, its principle
It is:The reduced diameter of helix tube, hydraulic pressure increase, and helix tube ejects spiral helicine current, can cause in water small
Whirlpool, is conducive to the oxygen in air and dissolves in water the oxygen content for increasing water.In addition, the present invention is using unique filler formulation energy
Enough obtaining excellent wastewater purification effect, oyster broken shell is with good adsorptivity and it is with the trickle aperture of multilayer,
Being conducive to beneficial microbe to grow, the organic matter and digestion in microorganism decomposable asymmetric choice net waste water decompose nitrogen, meanwhile, addition is certain
P elements and the calcium ion of abundance can be provided for wetland plant effectively in adsorbed water body after ratio oyster shell, promote wetland plant life
Long development.Arrange in pairs or groups in right amount in the granite stones of slightly alkaline oyster broken shell and slightly acidity, can maintain the pH value of water quality 6 ~ 8 it
Between.
Brief description of the drawings
Using attached drawing, the present invention will be further described, but the content in attached drawing does not form any limitation of the invention.
Fig. 1 is a kind of overlooking the structure diagram of one embodiment of reoxygenation type drowned flow artificial wet land of the present invention.
Fig. 2 is a kind of diagrammatic cross-section of reoxygenation type drowned flow artificial wet land of the present invention.
Fig. 3 is a kind of vertical subsurface flow wetland unit charge for remittance layer pool wall water outlet of reoxygenation type drowned flow artificial wet land of the present invention
Schematic diagram is set.
Fig. 4 is a kind of overflow weir structure schematic diagram of reoxygenation type drowned flow artificial wet land of the present invention.
Fig. 5 is a kind of vertical subsurface flow wetland unit water filter plate schematic diagram of reoxygenation type drowned flow artificial wet land of the present invention
Fig. 6 is a kind of helix tube of reoxygenation type drowned flow artificial wet land of the present invention.
Include in Fig. 1 into Fig. 6:
1- inlet valves;2- water inlet pipes;3- water-distributing devices;4- water plants;5- filler gravels;6- reoxygenation units;7- downflow weirs;
8- outlet pipes;9- outlet valves;10- evacuation ports;11- captations;12- exhaust-valves;13- water inlets;14- water filter plates;15- is vertical
Subsurface flow wetland unit;16- horizontal subsurface flow wetland units;17- helix tubes.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1
As shown in Figures 1 to 6, a kind of reoxygenation type drowned flow artificial wet land of the present embodiment includes vertical subsurface flow wetland unit 15, answers
Oxygen unit 6 and horizontal subsurface flow wetland unit 16, vertical subsurface flow wetland unit 15, reoxygenation unit 6 and horizontal subsurface flow wetland unit 16
Bottom area ratio is 3:1:3, by current direction by 2 ‰ that drop design, artificial swamp pond uses steel reinforced concrete for whole wet land system bottom
Structure building, pond body internal side wall and bottom surface set impervious barrier.
The top of vertical subsurface flow wetland unit 15 is provided with horizontally disposed water-distributing device 3, water-distributing device 3 and water inlet pipe 2
Connection, water inlet pipe 2 are provided with inlet valve 1.Water-distributing device 3 is equipped with supervisor and is interspersed in the branch pipe on supervisor both sides, supervisor
Each 15cm is provided with the water distributing pore of diameter 4mm.The vertical subsurface flow water-distributing device 3 is used as supervisor by the pvc pipe of DN60mm, often
Interval 30cm is interspersed in supervisor both sides, branch pipe DN30mm, main, branch length of tube depending on wetland length and width, on branch pipe at interval of
15cm bores DN4mm water distributing pores.The water filter plate 14 is located at the lower part of vertical subsurface flow wetland unit 15, by perforate cement plate system
Into, thickness 5cm, perforate on plate, 14 underlay 70cm mixed mud bricks of water filter plate, charge for remittance layer is formed in bottom;In this unit and again
Oxygen unit 6 connect pool wall charge for remittance layer at interval of perforate at 80cm, aperture 6cm.Waste water is filled by the lifting of pump by water distribution
Put 3 and waste water is uniformly distributed in wetland surface;Waste water flows through from top to bottom in vertical-flow wetland unit, by microorganism point
The physical and chemical processes such as solution, plant absorption, matrix absorption, by Pollutants in Wastewater decomposing, purifying;Vertical subsurface flow wetland unit 15
Water outlet enters reoxygenation unit 6 after the filtering of bottom water filter plate 14 by water outlet 13;By the natural reaeration of more than nature 6h
Afterwards, waste water can be improved into the dissolved oxygen levels before horizontal subsurface flow wetland unit 16, meanwhile, grown naturally in reoxygenation unit 6
Phytoplankton, also have certain clean-up effect to waste water quality;Waste water is entered in horizontal subsurface flow wetland unit 16 by downflow weir 7
Wetland unit, by being discharged after being collected with downflow weir 7 in cornerwise captation 11 through evacuation port 10 after wet land system.
The discharge outlet 13 of the water inlet pipe 2 of reoxygenation unit 6 is equipped with helix tube 17, and the diameter of helix tube 17 is from import toward exporter
To gradual constriction, and the tube wall of helix tube 17 is provided with multiple pores along the hand of spiral(Do not shown in figure);Horizontal subsurface flow wetland
16 top of unit is equipped with downflow weir 7 close to the water inlet side of reoxygenation unit 6, is arranged to 5cm ~ 10cm equilateral triangle zigzags,
And downflow weir 7 is not higher than the water surface in vertical subsurface flow wetland unit 15, and another side lower part of horizontal subsurface flow wetland unit 16 is set
There is captation 11, captation 11 is bonded by two pieces of 15cm length of sides perforation cement plates, with bottom of pond, pool wall composition square
Water installations 11 are collected, the wall of captation 11 is at interval of perforate at 80cm, aperture 8cm;
The water plants 4 such as 16 surface grafting canna of vertical subsurface flow wetland unit 15 and horizontal subsurface flow wetland unit, planting density 4
/ m2。
The method of operation can be divided into continuum micromeehanics and two mode of intermittent water inflow, waste water lifting pump and artificial aeration(Such as
Using)Start when being all operation.
In the present embodiment, matrix in 5 layers of the filler of vertical subsurface flow wetland unit 15 and horizontal subsurface flow wetland unit 16
Average grain diameter is particle diameter 2cm, and 5 layers of material for including following parts by weight of filler:
80 parts of gravel
5 parts of oyster broken shell
10 parts of granite stones.
Wherein, oyster broken shell is crushed and obtained again by raw oyster shell when baking 1 is small at a temperature of 100 DEG C.
The present embodiment water inlet is using large-scale pig farm methane-generating pit water outlet as raw water, using ammonia nitrogen as the low of reference index(30mg/
L), in(60mg/L), it is high(90mg/L)3 load levels, using intermittent duty mode, 9 points of morning and at 5 points in afternoon respectively into
Water, hydraulic detention time about 24h, detects water quality data such as following table,
The main water quality index that table 1 is intake, 6 water outlet of reoxygenation unit and final outflow water are monitored:
The data understand that the invention is in different ammonia nitrogen concentration waste water, the removal rate of 6 big indexs in water quality detection index
Reach more than 60%, show that reoxygenation type drowned flow artificial wet land is a practicality, efficient sewage disposal dress by experimental data
Put.
Embodiment 2
The main technical schemes of the present embodiment are substantially the same manner as Example 1, the feature not laid down a definition in the present embodiment, using reality
The explanation in example 1 is applied, is no longer repeated herein.In the present embodiment, whole wet land system bottom is by current direction by 1 ‰ that drop
Design, the area ratio of vertical subsurface flow wetland unit 15, reoxygenation unit 6 and horizontal subsurface flow wetland unit 16 is 1:1:1.
The water distributing pore that each 10cm is provided with diameter 3mm is responsible for, branch pipe is interspersed in supervisor both sides, branch pipe at interval of 20cm
Diameter 20mm, main, branch length of tube bore DN3mm ~ 6mm water distributing pores on branch pipe depending on wetland length and width at interval of 10cm.Water filter plate
14 underlay 5cm mixed mud bricks, at interval of perforate at 50cm, aperture 4cm at charge for remittance layer.
Downflow weir 7 is arranged to 5cm equilateral triangle zigzags, and captation 11 is glued by two pieces of 10cm length of sides perforation cement plates
Conjunction forms, and the wall of captation 11 is at interval of perforate at 50cm, aperture 5cm;
The water plants 4 such as 16 surface grafting canna of vertical subsurface flow wetland unit 15 and horizontal subsurface flow wetland unit, planting density 3
/ m2;
In the present embodiment, 5 layers of the filler of vertical subsurface flow wetland unit 15 and horizontal subsurface flow wetland unit 16 includes following weight
The material of part:
90 parts of gravel
8 parts of oyster broken shell
15 parts of granite stones,
Wherein, oyster broken shell is crushed and obtained again by raw oyster shell when baking 1 is small at a temperature of 80 DEG C.
In the present embodiment, the average grain diameter of the matrix in 5 layers of filler is particle diameter 5cm.
Embodiment 3
The main technical schemes of the present embodiment and embodiment 1 or embodiment 2 are essentially identical, do not lay down a definition in the present embodiment
Feature, using the explanation in embodiment 1 or embodiment 2, is no longer repeated herein.In the present embodiment, vertical subsurface flow wetland
The area ratio of unit 15, reoxygenation unit 6 and horizontal subsurface flow wetland unit 16 is 2:1:2,15 water distribution of vertical subsurface flow wetland unit dress
3 water distributing pore be responsible for each 20cm and be provided with diameter 6mm is put, the Concrete brick of 10cm, horizontal drowned flow are lined with water filter plate 14
The downflow weir 7 of wetland unit 16 is arranged to 10cm equilateral triangle zigzags, another side lower part of horizontal subsurface flow wetland unit 16
It is bonded equipped with captation 11 by two pieces of 20cm length of sides cement plates of perforating, the wall of captation 11 at 100cm at interval of opening
Hole, aperture 10cm.The water plants 4 such as 16 surface grafting canna of vertical subsurface flow wetland unit 15 and horizontal subsurface flow wetland unit,
5/m of planting density2;
5 layers of material for including following parts by weight of filler of vertical subsurface flow wetland unit 15 and horizontal subsurface flow wetland unit 16:
85 parts of gravel
6 parts of oyster broken shell
12 parts of granite stones.
Wherein, oyster broken shell is crushed and obtained again by raw oyster shell when baking 1 is small at a temperature of 90 DEG C.
In the present embodiment, the average grain diameter of the matrix in 5 layers of filler is particle diameter 4cm.
Finally it should be noted that above example is merely to illustrate technical scheme explanation rather than will to right
Ask the limitation of protection domain.Those of ordinary skill in the art should be appreciated that with reference to preferred embodiment and can be to the present invention's
Technical solution technical scheme is modified or replaced equivalently, but belong to the substantially identical and protection domain of technical solution of the present invention.
Claims (7)
- A kind of 1. reoxygenation type drowned flow artificial wet land, it is characterised in that:Include vertical subsurface flow wetland unit, reoxygenation unit and level Subsurface flow wetland unit, the area ratio of vertical subsurface flow wetland unit, reoxygenation unit and horizontal subsurface flow wetland unit is 3:1:3~1:1: 1, and the vertical subsurface flow wetland unit and horizontal subsurface flow wetland unit are located at the both sides of reoxygenation unit respectively,The top of the vertical subsurface flow wetland unit is provided with horizontally disposed water-distributing device, and water-distributing device is equipped with supervisor and interlocks The branch pipe on supervisor both sides is distributed in, is responsible for the water distributing pore that each 10cm ~ 20cm is provided with diameter 3mm ~ 6mm,The lower section of the water-distributing device is packing layer, and the bottom of packing layer is water filter plate, and the mixed of 5cm ~ 10cm is lined with water filter plate Solidifying cob brick block, and charge for remittance layer is equipped with the bottom of vertical subsurface flow wetland unit, charge for remittance layer is communicated with reoxygenation unit;The discharge outlet of the water inlet pipe of reoxygenation unit is equipped with helix tube, the diameter of the helix tube from water inlet toward water outlet direction by It is tapered narrow, and the tube wall of helix tube is provided with multiple pores along the hand of spiral;The horizontal subsurface flow wetland unit top is equipped with downflow weir close to the water inlet side of reoxygenation unit, it is described be arranged to 5cm ~ 10cm equilateral triangle zigzags, and the downflow weir is not higher than the water surface in the vertical subsurface flow wetland unit,Another side lower part of the horizontal subsurface flow wetland unit is equipped with captation, and the captation is by two pieces of 10cm ~ 20cm Length of side perforation cement plate is bonded, and water installations are collected with bottom of pond, pool wall composition square, the wall of the captation at interval of Perforate at 50cm ~ 100cm, aperture 5cm ~ 10cm;The water plant such as vertical subsurface flow wetland unit and horizontal subsurface flow wetland cell surface plantation canna, 3 ~ 5/m of planting density2;The packing layer of vertical subsurface flow wetland unit and the horizontal subsurface flow wetland unit includes the material of following parts by weight:80 ~ 90 parts of gravel5 ~ 8 parts of oyster broken shell10 ~ 15 parts of granite stones.
- A kind of 2. reoxygenation type drowned flow artificial wet land according to claim 1, it is characterised in that:The vertical subsurface flow wetland list The bed of material absolute altitude that first filler absolute altitude, the highest water surface absolute altitude of reoxygenation unit and horizontal subsurface flow wetland unit are filled out is in gradually decrease Gesture, and adjacent cells absolute altitude difference is no less than 5cm.
- A kind of 3. reoxygenation type drowned flow artificial wet land according to claim 1, it is characterised in that:Press whole wet land system bottom Current direction is by 1 ‰ ~ 3 ‰ that drop design;Wet land filler depth 50cm ~ 100cm.
- A kind of 4. reoxygenation type drowned flow artificial wet land according to claim 1, it is characterised in that:The oyster broken shell is male by giving birth to Oyster shell is crushed and obtained again when baking 1 is small at a temperature of 80 DEG C ~ 100 DEG C.
- A kind of 5. reoxygenation type drowned flow artificial wet land according to claim 1, it is characterised in that:The average grain diameter of the filler For particle diameter 2cm ~ 5cm.
- A kind of 6. reoxygenation type drowned flow artificial wet land according to claim 1, it is characterised in that:The vertical subsurface flow wetland list The predominant tube diameter of the water-distributing device of member is 40mm ~ 90mm.
- A kind of 7. reoxygenation type drowned flow artificial wet land according to claim 1, it is characterised in that:The vertical subsurface flow wetland list Member and the filler layer depth of horizontal subsurface flow wetland unit are 50cm ~ 100cm.
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CN201711417183.7A CN107935190A (en) | 2017-12-25 | 2017-12-25 | A kind of reoxygenation type drowned flow artificial wet land |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110002684A (en) * | 2019-04-26 | 2019-07-12 | 深圳市环境科学研究院 | A kind of artificial wet land treating system and processing method |
CN115108642A (en) * | 2022-07-05 | 2022-09-27 | 河南水投环境治理有限公司 | Subsurface flow and surface flow composite artificial wetland |
-
2017
- 2017-12-25 CN CN201711417183.7A patent/CN107935190A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110002684A (en) * | 2019-04-26 | 2019-07-12 | 深圳市环境科学研究院 | A kind of artificial wet land treating system and processing method |
CN115108642A (en) * | 2022-07-05 | 2022-09-27 | 河南水投环境治理有限公司 | Subsurface flow and surface flow composite artificial wetland |
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