CN209226781U - A kind of drowned flow artificial wet land device for sewage treatment - Google Patents
A kind of drowned flow artificial wet land device for sewage treatment Download PDFInfo
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- CN209226781U CN209226781U CN201821825364.3U CN201821825364U CN209226781U CN 209226781 U CN209226781 U CN 209226781U CN 201821825364 U CN201821825364 U CN 201821825364U CN 209226781 U CN209226781 U CN 209226781U
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Abstract
The utility model discloses a kind of drowned flow artificial wet land devices for sewage treatment, it includes the level-one aeration tank successively arranged, two-stage aeration tank and sedimentation basin, it is equipped with level-one between level-one aeration tank and two-stage aeration tank and improves current wetland pond, it is equipped with second level between two-stage aeration tank and sedimentation basin and improves current wetland pond, level-one aeration tank upper outlet leads to level-one by the road and improves current wetland pond, two-stage aeration tank upper outlet leads to second level by the road and improves current wetland pond, back purge system is respectively equipped in level-one improvement current wetland pond and second level improvement current wetland pond, ball-shaped filling material is installed in level-one improvement current wetland pond and second level improvement current wetland pond.Ball-shaped filling material can remove the pollutant in micro-polluted water very well, and two sections of aeration structures make oxygen in water oxygenation to 3~8mg/l, when dissolved oxygen is reduced to 3mg/l or less after processing, carry out advanced treating after second level oxygenation.Counter-flushing pipeline can effectively prevent filler hardened and sludge blockage, improve the utilization rate and pollutant removal of water oxygen.
Description
Technical field
The utility model relates to drowned flow artificial wet lands, the sewage-treatment plant of surface flow artificial marshland.
Background technique
As what Environmental Protection in China required steps up, present each village, each small towns will equip sewage treatment facility.It wants simultaneously
It asks the discharge outlet of major sewage treatment plant that will build artificial swamp and water quality river river water not up to standard to have to pass through manually
River can be imported after wetland variation is up to standard.But there are all for existing sewage treatment process and artificial swamp micro-polluted water treatment technique
More disadvantages: 1, processing cost is high, and operating cost is high, need to be more with administrative staff；2, it takes up a large area；3, high construction cost, management
Operation is complicated；4, noise is big during sewage disposal device reruns, and has very havoc to environment；5, filling out due to sewage treatment
Material layering is unevenly filled with, so that uneven water flow distribution, while causing filler hardened with the running time increases, so that at sewage
It manages ineffective；6, due to using aerated conduit or aeration head aperture big in aeration process, so that the oxygen utilization rate in air
It is low, a large amount of wastes of the energy are caused, while being unfavorable for microorganism in water and growing, so that sewage treating efficiency significantly drops
It is low；7, the plants such as plant such as reed, calamus that the drowned flow artificial wet land, surface flow artificial marshland of the northern area of China are selected enter the winter
Substantially all death after season, dead cauline leaf increases the pollution to water body instead, simultaneously because the death of plant loses
Its removal effect to ammonia nitrogen in sewage, phosphorus and heavy metal；8, since surface flow artificial marshland, drowned flow artificial wet land are due to taking up an area face
Product is big not to set back washing device generally, but with the extension of runing time, and the organic matter, inorganic matter in water can be continuously increased, thus
Effluent quality is caused constantly to deteriorate.
Summary of the invention
The present invention provides a kind of drowned flow artificial wet land device for sewage treatment, to overcome prior art drawback.
Purpose to realize the present invention, this drowned flow artificial wet land device for sewage treatment it is characterized in that it include according to
Level-one aeration tank, two-stage aeration tank and the sedimentation basin of secondary arrangement are provided with level-one between the level-one aeration tank and two-stage aeration tank
Current wetland pond is improved, second level improvement current wetland pond, the level-one aeration are provided between the two-stage aeration tank and sedimentation basin
Pond upper outlet leads to level-one by the road and improves current wetland pond, and it is latent that the two-stage aeration tank upper outlet leads to second level improvement by the road
Wetland pond is flowed, is respectively arranged with back purge system in the level-one improvement current wetland pond and second level improvement current wetland pond, institute
It states in level-one improvement current wetland pond and second level improvement current wetland pond and is installed with ball-shaped filling material respectively.
It is installed with the partition of effective quantity in level-one improvement current wetland pond, is evenly equipped with through-hole on the partition.
The second level improvement is at least installed with one of partition in current wetland pond, is evenly equipped with through-hole on the partition.
The level-one aeration tank and two-stage aeration tank bottom are installed with aerator respectively, and the aerator is in parallel
Aerating pipelines structure is evenly equipped with solarization air cap, the 100 μm~3mm in solarization air cap aperture on aeration tube.
The back purge system is pipeline structure in parallel, is evenly equipped with apopore on pipeline tube wall.
It is installed with dissolved oxygen instrument respectively in the level-one aeration tank, two-stage aeration tank.
The technological progress achieved by the present invention:
1, cold according to northern area winter climate, surface flow artificial marshland lose the effect of micro-polluted water treatment in winter and
Using drowned flow artificial wet land of the present invention, the ball-shaped filling material of 50~Φ of Φ 300mm is filled in wetland, is porous volcanic rock in filler
Equal materials, which not only prevents the hardened of current wetland, simultaneously because ball interior is in anoxic and anaerobic state,
Outside is aerobic state, and it is reachable can to remove pollutants, the COD removal rates such as COD, ammonia nitrogen and the phosphorus in micro-polluted water well in this way
85%~92%, ammonia nitrogen removal frank up to 80~95%, tp removal rate up to 70%~86%, heavy metal removing rate up to 90%~
98%.
2, it due to controlling frequency conversion fan using dissolved oxygen instrument, realizes according to the content of oxygen in water and adjusts one respectively
Grade aeration tank, two-stage aeration tank aeration quantity, thus saved electric energy, reduced operating cost.
3, the present invention uses the two stages aeration structure of level-one aeration tank and two-stage aeration tank, and level-one aeration tank makes molten in water
Oxygen oxygenation is solved to 3~8mg/l；After level-one improvement current wetland pond processing, when dissolved oxygen is reduced to 3mg/l or less, according to
Water treatment situation carries out second level oxygenation in two-stage aeration tank, makes to enter second level after the dissolved oxygen content increase in water artificial
It improves current wetland and carries out advanced treating.
3, since I and II improvement current wetland pond is divided into multiple adjacent unit cells with partition or concrete walls, respectively
Unit cells bottom of pond portion installs the counter-flushing pipeline of parallel pipeline structure respectively, can backwash in time to Ball-type packing, thus
Effectively prevent that filler is hardened and sludge blockage.
4, due to improvement after Artificial subsurface flow wetland of the present invention on can plant the winters such as bamboo willow, middle mountain China fir should not fall leaves it is each
Kind watercress avoids winter to change the winters deciduous plants such as reed, the calamus of existing surface flow artificial marshland plantation
The defect of fallen leaves polluted-water.
5, the artificial swamp occupied area of the present invention after improveing is ten part of surface flow artificial marshland, and space occupied is small,
Cost of investment is greatly reduced.
6, due to using micron-sized microporous aeration device, the utilization rate of water oxygen is greatly improved, to save
Operating cost, improves pollutant removal.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the overlooking structure diagram of Fig. 1.
Specific embodiment
As shown in Figure 1 and Figure 2, this drowned flow artificial wet land device for sewage treatment of the present invention it including successively arranging
Level-one aeration tank 2, two-stage aeration tank 8 and sedimentation basin 6, be connected between level-one aeration tank 2 and two-stage aeration tank 8 level-one improvement
Current wetland pond 12 is connected with second level improvement current wetland pond 7 between two-stage aeration tank 8 and sedimentation basin 6, level-one aeration tank 2
Upper outlet is passed through the bottom in level-one improvement current wetland pond 12 by the road, and the upper outlet of two-stage aeration tank 8 leads to two by the road
It is installed with respectively in the bottom in grade improvement current wetland pond 7, level-one improvement current wetland pond 12 and second level improvement current wetland pond 7
Back purge system 3, the back purge system 3 are pipeline structure in parallel, are evenly equipped with apopore on its pipeline tube wall, change in level-one
Ball-shaped filling material 18 is also installed respectively in good current wetland pond 12 and second level improvement current wetland pond 7, in level-one aeration tank 2 and second level
Dissolved oxygen instrument 21 is installed in aeration tank 8 respectively.
It is rectangle form pool that level-one, which improves current wetland pond 12 and second level improvement current wetland pond 7, wet in level-one improvement undercurrent
The partition 11 of effective quantity is installed in ground pond 12, the partition 11 that the present invention installs in level-one improvement current wetland pond 12 is seven
Level-one improvement current wetland pond 12 is separated into eight point ponds being sequentially connected, the both ends difference of partition 11 by block, seven pieces of partitions 11
It is connected with the pool wall in level-one improvement current wetland pond 12, through-hole 20 is uniformly provided on partition 11.It is wet in second level improvement undercurrent
One of partition 11 is installed in ground pond 7, the both ends of partition 11 are connected with second level improvement 7 pool wall of current wetland pond respectively, in partition
Through-hole 20 is evenly equipped on 11.Aerator 9 is installed respectively in level-one aeration tank 2 and the bottom of two-stage aeration tank 8, the aerator
9 be aerating pipelines structure in parallel, and solarization air cap is evenly equipped on aeration tube, and the solarization air cap aperture is 100 μm~3mm.
The control that heavy water frequency conversion fan 1 realizes content of oxygen dissolved in water, heavy water frequency conversion fan 1 are controlled using dissolved oxygen instrument 21
The aerator 9 of 2 bottom of level-one aeration tank is separately connected after promoting menstruation pipeline 13, while promoting menstruation pipeline 15 connects two-stage aeration tank 8
The aerator 9 of bottom sinks water frequency conversion fan 1 to reduce noise pollution.Sewage into drowned flow artificial wet land of the present invention exists
The channel that uniformly opens up on 2 pool wall 14 of promoting menstruation level-one aeration tank after 2 bottom aerator 9 of level-one aeration tank aeration simultaneously flows into level-one
After improveing current wetland pond 12, oxygen in water oxygenation is successively flowed after the through-hole 20 on sewage promoting menstruation partition 11 to 3~8mg/l
The each point of pond in level-one improvement current wetland pond 12 is crossed, the pollutants such as COD, ammonia nitrogen and phosphorus in sewage are by 50~Φ of Φ 300mm
Oxidative degradation after the porous material absorptions such as the volcanic rock in ball-shaped filling material 18, the sewage for removing pollutant flow into two-stage aeration tank 8
Afterwards, when middle dissolved oxygen is reduced to 3mg/l or less, according to water treatment situation, second level oxygenation is carried out in two-stage aeration tank 8, i.e.,
The aerator 10 of 8 bottom of pond of two-stage aeration tank is aerated again, and the sewage after increasing content of oxygen dissolved in water enters second level and manually changes
Advanced treating is carried out in good current wetland pond 7, the middle water after advanced treating passed through after the precipitating of sedimentation basin 6 in water water outlet 5 flow out.
Artificial subsurface flow wetland device of the present invention after improvement covers sand stone layer 19 on ball-shaped filling material 18, and wet in level-one improvement undercurrent
Bottom of pond successively place mat pebble layer 16 and the sand stone layer 17 in ground pond 12 and second level improvement current wetland pond 7, the ball under surface layer
The watercress 22 that the winters such as plantation bamboo willow, middle mountain China fir should not fall leaves between type filler 18 and sand stone layer 19, to avoid previous surface low
The winters death such as reed, calamus fallen leaves of artificial swamp plantation instead the plant of polluted-water the drawbacks of.Second level artificial modified is latent
The back purge system 3 being arranged in the pool unit of 7 each points of wetland pond is flowed, the recoil that can be connected by starting 10 end of pipeline connected in parallel
It washes pump to be rinsed, to prevent filler plate knot and sludge blockage, backwash water outlet goes out through level-one improvement 12 top of current wetland pond
Mouth or second level improvement 7 upper outlet of current wetland pond and the outflow of promoting menstruation pipeline 4.
Claims (6)
1. a kind of drowned flow artificial wet land device for sewage treatment, it is characterised in that it includes the level-one aeration successively arranged
Pond, two-stage aeration tank and sedimentation basin, be provided between the level-one aeration tank and two-stage aeration tank level-one improvement wetland pond, described two
Second level improvement wetland pond is provided between grade aeration tank and sedimentation basin, level-one aeration tank upper outlet leads to level-one improvement by the road
Wetland pond, the two-stage aeration tank upper outlet lead to second level by the road and improve wetland pond, the level-one improvement wetland pond and second level
It is respectively arranged with back purge system in improvement wetland pond, is installed respectively in the level-one improvement wetland pond and second level improvement wetland pond
There is ball-shaped filling material.
2. the drowned flow artificial wet land device according to claim 1 for sewage treatment, it is characterised in that the level-one changes
It is installed with the partition of effective quantity in good wetland pond, is evenly equipped with through-hole on the partition.
3. the drowned flow artificial wet land device according to claim 1 for sewage treatment, it is characterised in that the second level changes
It is at least installed with one of partition in good wetland pond, is evenly equipped with through-hole on the partition.
4. the drowned flow artificial wet land device according to claim 1 for sewage treatment, it is characterised in that the level-one exposes
Gas pond and two-stage aeration tank bottom are installed with aerator respectively, and the aerator is aerating pipelines structure in parallel, aeration
Solarization air cap, the 100 μm~3mm in solarization air cap aperture are evenly equipped on pipe.
5. the drowned flow artificial wet land device according to claim 1 for sewage treatment, it is characterised in that the backwash
Device is pipeline structure in parallel, is evenly equipped with apopore on pipeline tube wall.
6. according to claim 1, being used for the drowned flow artificial wet land device of sewage treatment described in 2,3,4 or 5, it is characterised in that institute
It states level-one aeration tank, be installed with dissolved oxygen instrument respectively in two-stage aeration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821825364.3U CN209226781U (en) | 2018-10-31 | 2018-10-31 | A kind of drowned flow artificial wet land device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821825364.3U CN209226781U (en) | 2018-10-31 | 2018-10-31 | A kind of drowned flow artificial wet land device for sewage treatment |
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| CN209226781U true CN209226781U (en) | 2019-08-09 |
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| CN201821825364.3U Active CN209226781U (en) | 2018-10-31 | 2018-10-31 | A kind of drowned flow artificial wet land device for sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456647A (en) * | 2020-12-16 | 2021-03-09 | 中国科学院生态环境研究中心 | Distributed treatment device that domestic sewage discharge characteristic suits |
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2018
- 2018-10-31 CN CN201821825364.3U patent/CN209226781U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456647A (en) * | 2020-12-16 | 2021-03-09 | 中国科学院生态环境研究中心 | Distributed treatment device that domestic sewage discharge characteristic suits |
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