CN104086059A - Constructed wetland system - Google Patents

Constructed wetland system Download PDF

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Publication number
CN104086059A
CN104086059A CN201410375828.5A CN201410375828A CN104086059A CN 104086059 A CN104086059 A CN 104086059A CN 201410375828 A CN201410375828 A CN 201410375828A CN 104086059 A CN104086059 A CN 104086059A
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immobilized microorganism
layer
artificial
water
water inlet
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CN201410375828.5A
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CN104086059B (en
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汪浩
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Guowei Environmental Engineering Co ltd
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ANQING QINGRONG ENTERPRISE MANAGEMENT CONSULTING Co Ltd
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Abstract

The invention discloses a constructed wetland system. The constructed wetland system comprises a constructed wetland pool, a water inlet pipeline, an aerating device, a water outlet unit and immobilized microorganism plates, wherein the constructed wetland pool comprises the following five layers from top to bottom in sequence: a sand layer, a sand-gravel layer, an immobilized microorganism layer, an artificial mixed matrix layer and a gravel layer; the water inlet pipeline composed of a water inlet pipe and a water distribution branch pipe is arranged at the gravel layer; the immobilized microorganism plates are installed at the immobilized microorganism layer; the aerating device is installed below the immobilized microorganism plates; a steel wire mesh is arranged between the immobilized microorganism layer and the sand-gravel layer; the water outlet unit comprises a water outlet, a catch basin and a catch basin drain pipe; the constructed wetland pool is of a reinforced concrete structure; impermeable layers are arranged on the inner side walls and bottom surface of the pool body; and cattail is planted in the sand layer. The constructed wetland system organically combines a microbiological method with the constructed wetlands, thus effectively improving the sewage treatment efficiency of the constructed wetlands.

Description

A kind of artificial wet land system
Technical field
The present invention relates to sewage treatment area, more specifically to a kind of artificial wet land system.
Background technology
Artificial swamp is a kind of Novel sewage treatment process that 20 century 70s grow up, and he utilizes physics, chemistry and the biological triple synergy in natural system to realize dirty water purification.Constructed wetland waste water treatment technology has that treatment effect is good, removal efficiency of nitrogen and phosphorus is high, during-operation service is convenient, engineering capital construction and the advantage such as running expense is low, thereby is widely applied to sanitary sewage disposal, industrial sewage and processes with, mine and oil production, agriculture point source and pollution of area source and body eutrophication issue handling.
Traditional activated sludge process is applied very extensive in sewage disposal, main because contain a large amount of living microorganisms in active sludge, these microorganisms can fast and effeciently be removed the organism in sewage, and have good Nitrogen/Phosphorus Removal, but traditional activated sludge process mud is blended in sewage in a kind of fluidised form.At present, microbial immobilized technology is obtained paying close attention to widely both at home and abroad, as the patent No. is: introduced a kind of immobilized microorganism preparation method in 200910056687.X patent specification; It is a kind of solid-state that immobilized microorganism principal character is that microorganism is fixed into, be placed on and in sewage, there is fixing shape, and not loss of activity of microorganism, there is good wastewater treatment efficiency.
Artificial swamp is longer compared to other traditional sewage treatment process hydraulic detention times at sewage treatment process, other objectionable impuritiess such as organism, nitrogen phosphorus in the sewage of artificial swamp are mainly removed by the adsorption of filtrate, in filtrate gap, can adsorb a small amount of microorganism, microorganism can be removed organism and the nitrogen phosphorus in sewage by self-acting, but the less therefore microbial process of content of microorganisms in filtrate is limited, and excessive free state microorganism easily causes filter clogging.
The present invention is mainly applied in immobilized microorganism in artificial wet land system, increases microbial process effect, simultaneously because microorganism is in immobilized state, is therefore difficult for causing artificial swamp to stop up, and improves the wastewater treatment efficiency of artificial swamp entirety.
Summary of the invention
The object of the invention is to, a kind of artificial wet land system is provided.Adopt this device can effectively improve the wastewater treatment efficiency of artificial swamp; For achieving the above object, the present invention has adopted following technical scheme:
A kind of artificial wet land system, comprise artificial swamp pond, suction culvert, aerating apparatus and water unit, also comprise immobilized microorganism plate, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: sandy soils, sand stone layer, immobilized microorganism layer, artificial mixed-matrix layer and gravel bed; Described gravel bed is provided with the suction culvert being made up of water inlet pipe and water distribution branch pipe, and water inlet pipe, through pool wall, is provided with Liquid valve and liquid meter on water inlet pipe; Described immobilized microorganism layer is provided with immobilized microorganism plate, immobilized microorganism plate downside is provided with the aerating apparatus being made up of aeration house steward and aeration branch pipe, aeration house steward is through pool wall, gas valve and gas meter are installed on aeration house steward, between immobilized microorganism layer and sand stone layer, woven wire are set; Described water unit is made up of posticum, water leg and water leg water shoot, and water unit is arranged on upper end, artificial swamp pond and water inlet pipe place pool wall opposition; Described artificial swamp pond adopts steel and concrete structure to build, and pond body internal side wall and bottom surface arrange impervious barrier; On described sandy soils, plant cattail.
Described immobilized microorganism plate, is fixed in template after active sludge is dry by mixing and be put in template with chemical agent by active sludge; Immobilized microorganism plate thickness is 6cm ~ 8cm, and long is 45cm ~ 65cm, and wide is 25cm ~ 45cm; Immobilized microorganism plate is provided with 4 fixing feet.
Described immobilized microorganism layer vertical direction installed 2 ~ 3 layers of immobilized microorganism plate, and immobilized microorganism layer is 30cm ~ 35cm.
Described gravel bed from lower to upper grain size of gravel diminishes successively, and lowest layer grain size of gravel is 3cm ~ 3.5cm, and gravel bed the superiors grain size of gravel is 1cm ~ 1.5cm, and gravel bed height is 30cm ~ 35cm.
Described artificial mixed-matrix layer adopts the by volume 1.5:1 mixing of cinder and zeolite, and particle diameter is 8mm ~ 10mm, and artificial mixed-matrix layer height is 30cm ~ 35cm.
Described sand stone layer, particle diameter is 3mm ~ 7mm, is highly 20cm ~ 25cm.
The described suction culvert being made up of water distribution branch pipe and water inlet pipe is apart from 5cm ~ 12cm at the bottom of artificial swamp pond.
Described woven wire is connected by bayonet socket and draw-in groove with pool wall in artificial swamp pond, and woven wire mesh aperture is less than 3mm.
Described water inlet pipe, water distribution branch pipe, aeration house steward and aeration branch pipe all adopt pvc pipe.
The present invention has advantages of as follows: microbial method and artificial swamp are organically combined, strengthened the effect of microorganism in artificial swamp, effectively improve wastewater treatment efficiency, floor space is little, and cost of investment is low.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A sectional view of the present invention;
Fig. 3 is B-B sectional view of the present invention;
Fig. 4 is C-C sectional view of the present invention;
Fig. 5 is D-D sectional view of the present invention;
Fig. 6 is E of the present invention, i.e. woven wire junction, enlarged view.
  
Wherein, 1, artificial swamp pond; 2, sandstone; 3, artificial mixed-matrix; 4, woven wire; 5, immobilized microorganism plate; 6, gravel; 7, water leg; 8, water leg water shoot; 9, posticum; 10-a, aeration house steward; 10-b, water inlet pipe; 11-a, gas valve; 11-b, Liquid valve; 12-a, gas meter; 12-b, liquid meter; 13-a, aeration branch pipe; 13-b, water distribution branch pipe; 14, sandy soil; 15, cattail; 16, bayonet socket; 17, draw-in groove.
Embodiment
With the drawings and specific embodiments, the present invention is further detailed explanation below:
As shown in Fig. 1-4, a kind of artificial wet land system, comprise artificial swamp pond 1, suction culvert, aerating apparatus and water unit, also comprise immobilized microorganism plate 5, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: sandy soils, sand stone layer, immobilized microorganism layer, artificial mixed-matrix layer and gravel bed; Gravel bed is provided with the suction culvert being made up of water inlet pipe 10-b and water distribution branch pipe 13-b, and water inlet pipe 10-b, through pool wall, is provided with Liquid valve 11-b and liquid meter 12-b on water inlet pipe 10-b; Water inlet pipe 10-b is connected with source of sewage water, and sewage is controlled flooding velocity by water inlet pipe 10-b by Liquid valve 11-b and liquid meter 12-b, is evenly distributed on pond from water distribution branch pipe 13-b; Immobilized microorganism layer is provided with immobilized microorganism plate 5, immobilized microorganism plate 5 downsides are provided with the aerating apparatus being made up of aeration house steward 10-a and aeration branch pipe 13-a, aeration house steward 10-a is through pool wall, gas valve 11-a and gas meter 12-a are installed on aeration house steward 10-a, aeration house steward 10-a and aerogenesis apparatus are by pipe to being connected, and gas meter 12-a and gas valve 11-a can control aeration rate; Woven wire 4 is set between immobilized microorganism layer and sand stone layer, mainly sandstone 2 and immobilized microorganism plate 5 is separated; Water unit is made up of posticum 9, water leg 7 and water leg water shoot 8, water unit is arranged on upper end, artificial swamp pond and water inlet pipe 10-b place pool wall opposition, sewage by water distribution branch pipe 13-b flow out successively by gravel 6 filter, artificial mixed-matrix 3 filters, microorganism aerobic processing, sandstone 2 flow out to water leg 7 from posticum 9 after filtering, water leg water shoot 8 from water leg 7 flows out again, realizes the treating processes of whole device; Artificial swamp pond 1 adopts steel and concrete structure to build, sound construction, and pond body internal side wall and bottom surface arrange impervious barrier, prevent the raw seepage of time long hair; On sand 14, plant cattail 15.
Wherein, Immobilized microorganism plate 5, is fixed in template after active sludge is dry by mixing and be put in template with chemical agent by active sludge; Immobilized microorganism plate 5 thickness are 6cm ~ 8cm, and long is 45cm ~ 65cm, and wide is 25cm ~ 45cm; Immobilized microorganism plate is provided with 4 fixing feet, is convenient to be fixedly connected with pond body.In pond, immobilized microorganism layer vertical direction installed 2 ~ 3 layers of immobilized microorganism plate 5, and immobilized microorganism layer height is 30cm ~ 35cm.
Gravel bed from lower to upper grain size of gravel diminishes successively, and lowest layer gravel 6 particle diameters are 3cm ~ 3.5cm, and gravel bed the superiors gravel 6 particle diameters are 1cm ~ 1.5cm, and gravel bed height is 30cm ~ 35cm.
Artificial mixed-matrix layer adopts the by volume 1.5:1 mixing of cinder and zeolite, and particle diameter is 8mm ~ 10mm, and artificial mixed-matrix layer height is 30cm ~ 35cm.
Sand stone layer, particle diameter is 3mm ~ 7mm, is highly 20cm ~ 25cm.
As shown in Figure 6, described woven wire 4 is connected by bayonet socket 16 and draw-in groove 17 with the interior pool wall in artificial swamp pond 1, and woven wire 4 mesh apertures are less than 3mm, prevents that sandstone 2 from spilling.
Suction culvert as shown in Figure 5, wherein; The suction culvert being made up of water distribution branch pipe 13-b and water inlet pipe 10-b is apart from the high 5cm ~ 12cm of being in 1 bottom, artificial swamp pond.Wherein, water inlet pipe 10-b, water distribution branch pipe 13-b, aeration house steward 10-a and aeration branch pipe 13-a all adopt pvc pipe.
Embodiment
In a preferred embodiment, the long 1.5m of artificial swamp pond body, wide 1.2m, high 1.2m; Gravel bed bottom is selected the gravel gravel bed thickness 30cm of 3cm ~ 3.5cm, and suction culvert is arranged in gravel bed, and suction culvert is apart from 5cm at the bottom of pond, and the gravel of 1cm ~ 1.5cm is selected at gravel bed top; The artificial artificial mixed-matrix of mixed-matrix layer selected 8mm ~ 10mm, artificial mixed-matrix bed thickness 30cm, and it is 3mm ~ 7mm that sandstone is selected particle diameter, sandstone bed thickness 20cm, sandy soil bed thickness 10cm, plants cattail on sandy soils; Immobilized microorganism layer is installed 2 layers of immobilized microorganism plate up and down altogether, install 4 for every layer, every immobilized microorganism board size: length × wide × height: 45cm × 25cm × 6cm, aerating apparatus is arranged on artificial substratum mixolimnion upper end, immobilized microorganism plate lower end, and aeration branch pipe adopts micro-pore aeration; Flooding quantity is 0.1m 3/ h, aeration rate is 0.5 ~ 0.8m 3/ h, hydraulic detention time is 20h left and right.
Once form is this embodiment to be carried out to sewage disposal detect the experimental data drawing:
Can be found by upper table: artificial wetland effluent water quality is highly stable, TN clearance reaches more than 60%, other kinds pollutants removal rate all can reach 80% above clearance, reaches " municipal sewage plant's pollutant emission standard " (GB18918-2002) middle one-level A emission standard.

Claims (9)

1. an artificial wet land system, comprise artificial swamp pond, suction culvert, aerating apparatus and water unit, it is characterized in that, also comprise immobilized microorganism plate, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: sandy soils, sand stone layer, immobilized microorganism layer, artificial mixed-matrix layer and gravel bed; Described gravel bed is provided with the suction culvert being made up of water inlet pipe and water distribution branch pipe, and water inlet pipe, through pool wall, is provided with Liquid valve and liquid meter on water inlet pipe; Described immobilized microorganism layer is provided with immobilized microorganism plate, immobilized microorganism plate downside is provided with the aerating apparatus being made up of aeration house steward and aeration branch pipe, aeration house steward is through pool wall, gas valve and gas meter are installed on aeration house steward, between immobilized microorganism layer and sand stone layer, woven wire are set; Described water unit is made up of posticum, water leg and water leg water shoot, and water unit is arranged on upper end, artificial swamp pond and water inlet pipe place pool wall opposition; Described artificial swamp pond adopts steel and concrete structure to build, and pond body internal side wall and bottom surface arrange impervious barrier; On described sandy soils, plant cattail.
2. a kind of artificial wet land system according to claim 1, is characterized in that, described immobilized microorganism plate, is fixed in template after active sludge is dry by mixing and be put in template with chemical agent by active sludge; Immobilized microorganism plate thickness is 6cm ~ 8cm, and long is 45cm ~ 65cm, and wide is 25cm ~ 45cm; Immobilized microorganism plate is provided with 4 fixing feet.
3. a kind of artificial wet land system according to claim 1 and 2, is characterized in that, described immobilized microorganism layer vertical direction installed 2 ~ 3 layers of immobilized microorganism plate, and immobilized microorganism layer is 30cm ~ 35cm.
4. a kind of artificial wet land system according to claim 1 and 2, it is characterized in that, described gravel bed from lower to upper grain size of gravel diminishes successively, and lowest layer grain size of gravel is 3cm ~ 3.5cm, gravel bed the superiors grain size of gravel is 1cm ~ 1.5cm, and gravel bed height is 30cm ~ 35cm.
5. a kind of artificial wet land system according to claim 1 and 2, is characterized in that, described artificial mixed-matrix layer adopts the by volume 1.5:1 mixing of cinder and zeolite, and particle diameter is 8mm ~ 10mm, and artificial mixed-matrix layer height is 30cm ~ 35cm.
6. a kind of artificial wet land system according to claim 1 and 2, is characterized in that, described sand stone layer, and particle diameter is 3mm ~ 7mm, is highly 20cm ~ 25cm.
7. a kind of artificial wet land system according to claim 1 and 2, is characterized in that, the described suction culvert being made up of water distribution branch pipe and water inlet pipe is apart from 5cm ~ 12cm at the bottom of artificial swamp pond.
8. a kind of artificial wet land system according to claim 1, is characterized in that, described woven wire is connected by bayonet socket and draw-in groove with pool wall in artificial swamp pond, and woven wire mesh aperture is less than 3mm.
9. a kind of artificial wet land system according to claim 7, is characterized in that, described water inlet pipe, water distribution branch pipe, aeration house steward and aeration branch pipe all adopt pvc pipe.
CN201410375828.5A 2014-08-01 2014-08-01 A kind of artificial wet land system Active CN104086059B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104829064A (en) * 2015-05-15 2015-08-12 浙江海洋学院 Artificial wetland system
CN106745760A (en) * 2017-02-14 2017-05-31 杜高新 A kind of Constructed Wetland For Purifying filtration system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126791A (en) * 2011-01-30 2011-07-20 河海大学 Anti-plugging method and device of constructed wetland
US20120091057A1 (en) * 2011-08-22 2012-04-19 Kent Greg B Wetland Biofilter Chamber with Peripheral Catch Basin and Method of Use Thereof
CN103274530A (en) * 2013-06-19 2013-09-04 中国环境科学研究院 Zonal vertical current artificial wetland system with reinforced denitrification function
CN103466800A (en) * 2013-09-25 2013-12-25 山东大学 Quasi-ecological corbicula fluminea surface-flow constructed wetland and operating method thereof
CN103708622A (en) * 2014-01-02 2014-04-09 东华大学 Microbial fuel cell constructed wetland for efficiently treating organic sewage
CN103819004A (en) * 2014-03-07 2014-05-28 深圳市万信达生态环境股份有限公司 Movable and combined subsurface constructed wetland device and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126791A (en) * 2011-01-30 2011-07-20 河海大学 Anti-plugging method and device of constructed wetland
US20120091057A1 (en) * 2011-08-22 2012-04-19 Kent Greg B Wetland Biofilter Chamber with Peripheral Catch Basin and Method of Use Thereof
CN103274530A (en) * 2013-06-19 2013-09-04 中国环境科学研究院 Zonal vertical current artificial wetland system with reinforced denitrification function
CN103466800A (en) * 2013-09-25 2013-12-25 山东大学 Quasi-ecological corbicula fluminea surface-flow constructed wetland and operating method thereof
CN103708622A (en) * 2014-01-02 2014-04-09 东华大学 Microbial fuel cell constructed wetland for efficiently treating organic sewage
CN103819004A (en) * 2014-03-07 2014-05-28 深圳市万信达生态环境股份有限公司 Movable and combined subsurface constructed wetland device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104829064A (en) * 2015-05-15 2015-08-12 浙江海洋学院 Artificial wetland system
CN106745760A (en) * 2017-02-14 2017-05-31 杜高新 A kind of Constructed Wetland For Purifying filtration system

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