CN102531170B - Ecological pond system of water body circulation flow oxygenation - Google Patents

Ecological pond system of water body circulation flow oxygenation Download PDF

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CN102531170B
CN102531170B CN201110440624.1A CN201110440624A CN102531170B CN 102531170 B CN102531170 B CN 102531170B CN 201110440624 A CN201110440624 A CN 201110440624A CN 102531170 B CN102531170 B CN 102531170B
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gallery
water
water body
ecological pond
pond
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CN102531170A (en
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王欣泽
尚晓
叶利升
张真
孔海南
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention relates to an ecological pond system of water body circulation flow oxygenation, and the ecological pond system constructs a dual-gallery type ecological pond sewage disposal system. The ecological pond system comprises an ecological pond, a solar air pump station and a water body air lifting device, wherein the middle of the ecological pond is provided with a middle river diversion gallery, the ecological pond is divided into three function regions of an oxygen-starved area, an oxidation zone and an advanced treatment region, and the middle of the middle river diversion gallery is provided with a regurgitation gallery; the solar air pump station is arranged on one side of the ecological pond; and a water body air lifting device is arranged between the oxidation zone and the advanced treatment region, and is respectively connected with the solar air pump station and the regurgitation gallery, and is used for leading the water vapor in the oxidation zone to enter into the regurgitation gallery so as to transport in the oxygen-starved area. The system can increase water liquidity in the ecological pond and water body dissolved oxygen, a helotism system is better balanced in the ecological pond, thereby fully playing a role of combinedly purifying sewage by using bacteria, algology and plants; and the ecological pond system provided by the invention has the advantages of low investment and operating cost, simple maintenance, and good treatment effect.

Description

A kind of water body circulates the ecology pond systems of oxygenation
Technical field
The present invention relates to technical field of sewage, be specifically related to a kind of water body and circulate the ecology pond systems of oxygenation, for increasing water body flow in ecological pond and oxygen in water, subregion formation oxygen-starved area, aerobic zone and deep purifying district in the pool, give full play to the combined purifying effect to sewage of bacterium, algae and plant.
Background technology
Utilize source, ecological treatment system opposite sewage to carry out purifying treatment, realize the entirety of territory, village water surrounding and improve the important means that becomes control Rural Plane Source Pollution problem.Ecological pond is the job facilities of sewage being processed by helotism system and plant purification system, extensively combines use with artificial swamp at present, composition combined type Ecological Disposal technology.
But, the ecology pond systems is because the residence time is long, water body flow is slow, often reoxygenation ability in water, dissolved oxygen deficiency in water, the simple root system of plant that relies on is can not meet bacterium to organic aerobic decomposition needs to the transmission release of oxygen, particularly at night, algae respiration occupies leading, and in water body, for a long time in anoxic condition, helotism system often can not keep balance, algal bloom, growth and extinction, cause oxygen in water lower, organism and ammonia nitrogen removal effect are poor, and in water outlet, solid suspension content is too high.Therefore, how to strengthen water body flow, increase oxygen in water concentration, suppress algal grown, keep helotism balance, be that ecological pond technology popularization application needs the major issue solving always.
Summary of the invention
The object of the invention is the deficiency existing for current ecological pond treatment technology, the ecology pond systems that provides a kind of water body to circulate oxygenation, with the technical problem that solves that the ecology pond systems in prior art exists that water body flow is slow, oxygen in water concentration is low and helotism can not balance.
For achieving the above object, the invention provides the ecology pond systems that a kind of water body circulates oxygenation, this the ecology pond systems is built the ecological pond Sewage treatment systems of two gallery types, comprise: ecological pond, sun power air pump station and water body air-lift device, water conservancy diversion gallery in the middle of ecological pond middle part is provided with, ecological pond is divided into oxygen-starved area, aerobic zone and San Ge functional zone, advanced treatment district, and middle water conservancy diversion gallery middle part is provided with backflow gallery; Sun power air pump station is arranged on ecological pond on one side; Water body air-lift device is arranged between aerobic zone and advanced treatment district, and its water-in is connected with sun power air pump station by gas pipe line, and water outlet is connected with backflow gallery, in order to the aqueous vapor body in aerobic zone to the gallery that refluxes is transmitted back in oxygen-starved area.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, its ecological pond available depth is 3-4m.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, its oxygen-starved area, aerobic zone and advanced treatment district three hydraulic detention time ratio are 5: 3: 5.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, the advantage waterplant that the local durability against pollution of choosing seeds in its advanced treatment district is strong.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, its water body air-lift device adopts Duct fixing clamp to be fixed on the pool wall of middle water conservancy diversion gallery.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, its water body air-lift device gas-water ratio is 7~10: 1.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, its backflow gallery pipeline tapping is positioned at water level higher position, and water body reflux ratio is 30%-60%, and pipe diameter size requires to determine according to reflux ratio and flow velocity.
Circulate the ecology pond systems of oxygenation according to the water body described in preferred embodiment of the present invention, its sun power air pump station further comprises: solar panel, sun power nonshared control unit, lead acid cell and pneumatic pump, solar panel is arranged on sun power pumping plant outside, sun power nonshared control unit, lead acid cell and pneumatic pump are arranged on sun power pumping plant inside, solar panel, lead acid cell and pneumatic pump are connected successively, and sun power nonshared control unit is connected with solar panel and lead acid cell respectively.
This system increases water body flow and Dissolved Oxygen in Water in ecological pond, suppress algal grown, keep helotism balance, Nei An region, the pool forms oxygen-starved area, aerobic zone and deep purifying district successively, and the advantage waterplant that the local durability against pollution of choosing seeds in deep purifying district is strong, gives full play to the combined purifying effect to pollutant removal such as helotism system, plant absorption, physics sedimentation.
The ecological pond that water body of the present invention circulates the two gallery types of the ecology pond systems construction of oxygenation carries out bypass processing to river course river; Water enters in ecological pond, first enters oxygen-starved area, and this residence time in stage is 3-4 days, and flow-shape is pulling flow type, within this stage mainly to water in organism and nitric nitrogen decompose; Sewage enters aerobic zone and laterally enters next parallel gallery along crossing water gallery subsequently, build sun power air pump station at the ecological side of a pond simultaneously, through pneumatic tube, air is conveyed into the water body air-lift device in the pool, return in initial ecological pond through backflow gallery by air lift mode part water body, and then circulate and oxygenation formation aerobic zone at this region acceleration water body, hydraulic detention time is 1-2 days, and in this stage water, organism and ammonia nitrogen are removed; The part water yield behind aerobic zone with plug-flow mode penetration depth treatment zone, in advanced treatment district, plant the advantage waterplant that local durability against pollution is strong, this residence time in stage is 3-4 days, because the residence time is long, dissolved oxygen in water is higher, and the actings in conjunction such as this stage physical sedimentation, plant absorption, microorganism and bacterial degradation will be to polluting and carry out advanced treatment in water.
Compared with prior art, the present invention has the following advantages:
1, the present invention utilizes sun power clean energy that sewage air lift is returned in initial ecological pond, and water body accelerates circulation, increases air reaeration, has promoted the benign cycle of helotism system in ecological pond.Simultaneously, in an ecological pond, form successively oxygen-starved area, aerobic zone and advanced treatment district, give full play to each stage for polluting the advantage of removing in water, obvious for the suspended solid in the sewage of face source, organism and nitric nitrogen removal effect in oxygen-starved area, and increase the biochemical of water body, aerobic zone for water in ammonia nitrogen, organism and increase the successful of oxygen in water, advanced treatment district for water in nitrogen phosphorus, suspended solid and further degradation of organic substances successful.
2, the present invention, by sun power and store battery alternate run, makes the ecology pond systems also will bring into play better advantage at night.Generally speaking night microorganism and plant respiration occupy leadingly, water oxygen gas composition obviously reduces, and will have a strong impact on the treatment effect of sewage at night, native system can overcome above difficulty, improves the dissolved oxygen concentration in water at night.And, in this ecology pond systems, only adopting one taking sun power as main small power pneumatic pump, power consumption is low, has greatly simplified the complicated process of running maintenance, has reduced construction and running cost.
Brief description of the drawings
Fig. 1 is the structural plan figure that water body of the present invention circulates oxygenation the ecology pond systems;
Fig. 2 is the section of structure that water body of the present invention circulates oxygenation the ecology pond systems.
In figure: 10. ecological pond; 20. sun power air pump stations; 30. water body air-lift devices; 11. water inlet pipes; 12. gas pipe lines; Water conservancy diversion gallery in the middle of 13.; 14. backflow gallerys; 15. cross water gallery; 16. waterplant; 17. rising pipes; 21. solar panels; 22. sun power nonshared control units; 23. lead acid cells; 24. pneumatic pumps; 31. water suction hydraucones.
Embodiment
Below in conjunction with width figure, illustrate the present invention.
Please refer to Fig. 1 to Fig. 2, a kind of water body circulates the ecology pond systems of oxygenation, this the ecology pond systems is built the ecological pond Sewage treatment systems of two gallery types, comprise: ecological pond 10, sun power air pump station 20 and water body air-lift device 30, water conservancy diversion gallery 13 in the middle of ecological pond 10 middle parts are provided with, ecological pond 10 is divided into oxygen-starved area, aerobic zone and San Ge functional zone, advanced treatment district, and middle water conservancy diversion gallery 13 middle parts are provided with backflow gallery 14; Sun power air pump station 20 is arranged on ecological pond 10 on one side; Water body air-lift device 30 is arranged between aerobic zone and advanced treatment district, and its water-in is connected with sun power air pump station 20 by gas pipe line 12, and water outlet is connected with backflow gallery 14, in order to the aqueous vapor body in aerobic zone to the gallery 14 that refluxes is transmitted back in oxygen-starved area.
Ecological pond 10 pond bodies adopt the mixed clay structure of reinforcing bar or brickwork construction, and ecological pond 10 available depths are 3-4m, and pond body size is determined by Inlet and outlet water flow.Between middle water conservancy diversion gallery 13 and ecological pond 10 pool walls, leave water gallery 15, be communicated with oxygen-starved area, aerobic zone and advanced treatment district.The advantage waterplant 11 that the local durability against pollution of choosing seeds in advanced treatment district is strong.Oxygen-starved area, aerobic zone and advanced treatment district three hydraulic detention time ratio are 5: 3: 5.In addition, as shown in the figure, on oxygen-starved area and advanced treatment district pool wall, be respectively arranged with water inlet pipe 11 and rising pipe 17, water inlet pipe 11 and rising pipe 17 all adopt PVC material.
Sun power air pump station 20 further comprises: solar panel 21, sun power nonshared control unit 22, lead acid cell 23 and pneumatic pump 24, solar panel 21 is arranged on solar pumping 2 open airs, sun power nonshared control unit 22, lead acid cell 23 and pneumatic pump 24 are arranged on sun power pumping plant 2 inside, solar panel 21, lead acid cell 23 and pneumatic pump 24 are connected successively, and sun power nonshared control unit 22 is connected with solar panel 21 and lead acid cell 23 respectively.Solar panel 21 charges for lead acid cell 23, then is powered to pneumatic pump 24 by lead acid cell 23, and lead acid cell 23 full power states can meet at least 3-4 days needs for electricity.Sun power nonshared control unit 22 functions are for controlling charge and discharge key, and the dissolved-air pressure that pneumatic pump 24 provides is 0.2-0.4Mpa.
Water body air-lift device 30 is connected with air pump 5 by gas pipe line 12, and gas pipe line 12 and water body air-lift device 30 all adopt PVC material.Water body air-lift device 30 is fixed on middle water conservancy diversion gallery 13 pool walls by Duct fixing clamp, its water-in is water suction hydraucone 31, water suction hydraucone 31 diameters are preferably 1.5 times of water body air-lift device 30 diameters, water body air-lift device 30 gas-water ratios are 7~10: 1, quantity of reflux ratio is got 30-60%, it is oxygen-starved area that water is transmitted back to initial ecological pond 10 through water body air-lift device 30 from backflow gallery 14, in this process, part water body will speed up circulation in aerobic zone, and part water body is processed penetration depth treatment zone.The middle part of water conservancy diversion gallery 13 in the middle of backflow gallery 14 is positioned at, and outlet is positioned at water level higher position, and its pipe diameter size is determined by water yield reflux ratio and flow velocity.
Below at Lake Erhai basin embodiment, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1:
Rivers stream subflow territory when the present embodiment is positioned at northern sieve in Lake Erhai basin, downstream, river black mud ditch tributary river when Engineering Service object is sieve, be introduced in system in the period when a river is at its normal level and part in low water season river course river, after ecological pond purifying treatment, return to river course, when its object is part sieve, river carries out bypass purifying treatment, the pollution load in input Erhai, river while cutting down sieve.
Engineering design processing power is 100t/day, this ecological pond adopts two gallery type structures, body of wall adopts brickwork construction, be of a size of 20m*12.5m*4.2m (L*W*H), available depth is 4m, the water conservancy residence time is 10 days, crossing water width of corridor is 3.5m, water conservancy diversion gallery middle part in the middle of backflow gallery is positioned at, pipe diameter is DN175mm, the dissolved-air pressure that air pump provides is 0.4Mpa, vapour-liquid ratio is 10: 1, the inside and outside pneumatic tube in the pool and air-lift device all adopt PVC material, water yield reflux ratio is 60%, oxygen-starved area in the pool, aerobic zone and advanced treatment district hydraulic detention time ratio are 5: 3: 5, advanced treatment district plantation floating plant Herba Eichhorniae.Sun power pumping plant is built in the other vacant lot of ecological pond, and solar panel output rating is 2.8kw, voltage rating 48V, and lead acid cell is 24 2V/600AH battery series connection, and transformer is DC48V-DC12V, and air pump is 12V/120w, and pneumatic tube caliber is DN100mm.
Engineering construction probation was 2 month, this system Inlet and outlet water water quality monitoring (WQM) result is as following table (unit: mg/L), with reference to water environment quality standard (GB3838-2002), river is through this ecology pond systems, and water quality totally can promote 1 to 2 grade.
COD Mn TN NH 3-N TP DO
Water inlet 11-15 0.85-2.23 0.6-1.54 0.13-0.34 0.1-0.2
Water outlet 5-8 0.31-1.37 0.28-0.8 0.08-0.23 0.4-0.6
The ecological pond that water body of the present invention circulates the two gallery types of the ecology pond systems construction of oxygenation carries out bypass processing to river course river; Water enters in ecological pond, first enters oxygen-starved area, and this residence time in stage is 3-4 days, and flow-shape is pulling flow type, within this stage mainly to water in organism and nitric nitrogen decompose; Sewage enters aerobic zone and laterally enters next parallel gallery along crossing water gallery subsequently, build sun power air pump station at the ecological side of a pond simultaneously, through pneumatic tube, air is conveyed into the water body air-lift device in the pool, return in initial ecological pond through backflow gallery by air lift mode part water body, and then circulate and oxygenation formation aerobic zone at this region acceleration water body, hydraulic detention time is 1-2 days, and in this stage water, organism and ammonia nitrogen are removed; The part water yield behind aerobic zone with plug-flow mode penetration depth treatment zone, in advanced treatment district, plant the advantage waterplant that local durability against pollution is strong, this residence time in stage is 3-4 days, because the residence time is long, dissolved oxygen in water is higher, and the actings in conjunction such as this stage physical sedimentation, plant absorption, microorganism and bacterial degradation will be to polluting and carry out advanced treatment in water.
Compared with prior art, the present invention has the following advantages:
1, the present invention utilizes sun power clean energy that sewage air lift is returned in initial ecological pond, and water body accelerates circulation, increases air reaeration, has promoted the benign cycle of helotism system in ecological pond.Simultaneously, in an ecological pond, form successively oxygen-starved area, aerobic zone and advanced treatment district, give full play to each stage for polluting the advantage of removing in water, obvious for the suspended solid in the sewage of face source, organism and nitric nitrogen removal effect in oxygen-starved area, and increase the biochemical of water body, aerobic zone for water in ammonia nitrogen, organism and increase the successful of oxygen in water, advanced treatment district for water in nitrogen phosphorus, suspended solid and further degradation of organic substances successful.
2, the present invention, by sun power and store battery alternate run, makes the ecology pond systems also will bring into play better advantage at night.Generally speaking night microorganism and plant respiration occupy leadingly, water oxygen gas composition obviously reduces, and will have a strong impact on the treatment effect of sewage at night, native system can overcome above difficulty, improves the dissolved oxygen concentration in water at night.And, in this ecology pond systems, only adopting one taking sun power as main small power pneumatic pump, power consumption is low, has greatly simplified the complicated process of running maintenance, has reduced construction and running cost.
The above, it is only better embodiment of the present invention, not the present invention is done to any pro forma restriction, any content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all belong to the scope of technical solution of the present invention.

Claims (6)

1. a water body circulates the ecology pond systems of oxygenation, it is characterized in that: described the ecology pond systems is built the ecological pond Sewage treatment systems of two gallery types, comprise: ecological pond, sun power air pump station and water body air-lift device, water conservancy diversion gallery in the middle of described ecological pond middle part is provided with, and in the middle of described, water conservancy diversion gallery middle part is provided with backflow gallery; In the middle of described, described ecological pond is divided into oxygen-starved area, aerobic zone and San Ge functional zone, advanced treatment district by water conservancy diversion gallery and backflow gallery, wherein, the region that in the middle of described, water conservancy diversion gallery and backflow gallery impale is advanced treatment district, in the middle of described, the water conservancy diversion gallery opposite side region corresponding with described advanced treatment district is oxygen-starved area, region beyond described advanced treatment district and oxygen-starved area is aerobic zone, in the middle of described, between water conservancy diversion gallery and ecological pond pool wall, be provided with water gallery, described aerobic zone is communicated with by the described water gallery of crossing; Described sun power air pump station is arranged on described ecological pond on one side; Described water body air-lift device is arranged between described aerobic zone and advanced treatment district, its water-in is connected with described sun power air pump station by gas pipe line, water outlet is connected with described backflow gallery, in order to the water stripper in described aerobic zone to described backflow gallery is transmitted back in described oxygen-starved area, described ecological pond available depth is 3-4m, the strong submerged plant of the local durability against pollution of choosing seeds in described advanced treatment district.
2. water body according to claim 1 circulates the ecology pond systems of oxygenation, it is characterized in that: described oxygen-starved area, aerobic zone and advanced treatment district three hydraulic detention time are than being 5:3:5.
3. water body according to claim 1 circulates the ecology pond systems of oxygenation, it is characterized in that: described water body air-lift device adopts Duct fixing clamp to be fixed on the pool wall of described middle water conservancy diversion gallery.
4. water body according to claim 1 circulates the ecology pond systems of oxygenation, it is characterized in that: described water body air-lift device gas-water ratio is 7~10:1.
5. water body according to claim 1 circulates the ecology pond systems of oxygenation, it is characterized in that: described backflow gallery is provided with pipeline tapping, described backflow gallery pipeline tapping is positioned at water level higher position, and water body reflux ratio is 30%-60%, and pipe diameter size requires to determine according to reflux ratio and flow velocity.
6. water body according to claim 1 circulates the ecology pond systems of oxygenation, it is characterized in that: described sun power air pump station further comprises: solar panel, sun power nonshared control unit, lead acid cell and pneumatic pump, described solar panel is arranged on described sun power pumping plant outside, described sun power nonshared control unit, lead acid cell and pneumatic pump are arranged on described sun power pumping plant inside, described solar panel, lead acid cell is connected successively with pneumatic pump, described sun power nonshared control unit is connected with described solar panel and lead acid cell respectively.
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