CN109368935A - A kind of pretreatment unit for Drain contamination for river channel mouth - Google Patents
A kind of pretreatment unit for Drain contamination for river channel mouth Download PDFInfo
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- CN109368935A CN109368935A CN201811443285.0A CN201811443285A CN109368935A CN 109368935 A CN109368935 A CN 109368935A CN 201811443285 A CN201811443285 A CN 201811443285A CN 109368935 A CN109368935 A CN 109368935A
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- 238000011109 contamination Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000010865 sewage Substances 0.000 claims abstract description 71
- 229920001661 Chitosan Polymers 0.000 claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000006396 nitration reaction Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 239000010457 zeolite Substances 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000353135 Psenopsis anomala Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention relates to a kind of pretreatment units for Drain contamination for river channel mouth, including treatment tank two and the grid pond being sequentially communicated, rain sewage diversion pond, treatment tank one, grid is equipped with inside grid pond, rain sewage diversion bottom of pond portion is provided with rain sewage diversion device, sewage can be separated with rainwater and sewage is made to enter treatment tank one by rain sewage diversion device, biochemical filler and lifting device are equipped in treatment tank one, chitosan fluid dressing is equipped in treatment tank two, the exposure of the chitosan fluid dressing other end is inserted into air in snorkel one end, water distributor chitosan fluid dressing top and be connected to by pipeline with the lifting device, device is elevated by the water that biochemical filler is handled to be promoted to water distributor, water distributor is spread across water on chitosan fluid dressing, chitosan fluid dressing carries out absorption and biochemical purification to water.The present invention first separates rain dirt, is combined afterwards using anaerobic biochemical treatment with biological cleaning filter, operation is simple, high treating effect, Treatment Stability are good.
Description
Technical field
The present invention relates to Drain contamination for river channel technical field, especially a kind of pretreatment unit for Drain contamination for river channel mouth.
Background technique
River is the important component of surface water, with the development of economy, the improvement of people's living standards, urban river water dirt
The problem of dye, solves extremely urgent.River regulation project put into construction one after another in recent years, and regulation effect is irregular.Study carefully it
Reason, mainly many rivers cut a dirt along the line and are not thorough, generally existing blowdown point, cause river after administering to be polluted again, repair
Multiple river channel ecology is destroyed again, and the long-acting regulation effect of project is bad.The discharge outlet of especially Storm Sewer Network is often gone here and there
Enter sanitary sewage, is irregularly discharged toward river, it is unprocessed to be discharged into river and bring destructive destruction to river channel ecology.
Therefore, it is necessary to a kind of pre-processing device for river Storm Sewer Network sewage draining exit be developed, at sewage draining exit sewage
It is discharged after reason, can effectively reduce pollutant, reduce the destruction to river channel ecology environment, promoted river regulation and integrally administer effect
Fruit.
Summary of the invention
In order to solve the above problem existing for current Drain contamination for river channel mouth sewage treatment, the invention proposes one kind to be used for river
The pretreatment unit of sewage draining exit, to improve the effect and stability of river regulation.
To achieve the goals above, the present invention provides a kind of pretreatment unit for Drain contamination for river channel mouth, feature exists
In including treatment tank two and the grid pond being sequentially communicated, rain sewage diversion pond, treatment tank one, grid pond and water inlet pipe
Connection, and inside is equipped with grid, and rain sewage diversion pond is connected to external rainwater outlet pipe, and the rainy dirt point of its bottom setting
Device is flowed, sewage can be separated with rainwater and sewage is made to enter treatment tank one by rain sewage diversion device, in treatment tank one
Equipped with biochemical filler and lifting device, chitosan fluid dressing is equipped in treatment tank two, bottom and external purified water outlet pipe connect
Logical, the exposure of the chitosan fluid dressing other end is inserted into air in snorkel one end, water distributor chitosan fluid dressing top and pass through pipe
Road is connected to the lifting device, is elevated device promotion to water distributor by the water that biochemical filler is handled, water distributor spills water
Onto chitosan fluid dressing, chitosan fluid dressing carries out absorption and biochemical purification to water.
Provided by the present invention for the pretreatment unit of Drain contamination for river channel mouth, when there is sewage discharge in Storm Sewer Network, sewage
Enter rain sewage diversion pond after grid filtration, sewage enters sewage reaction tank one through rain dirt separator, by anaerobic organism
By promoting water distribution after reaction, double purification is carried out by sewage reaction tank two, is discharged into river after qualified.The present invention is first right
Rain dirt is separated, and anaerobic biochemical treatment is used to combine with biological cleaning filter afterwards, runs simple, high treating effect, processing surely
It is qualitative good, and integration apparatus facilitates that installation and debugging, occupied area are smaller, management is convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the pretreatment unit for Drain contamination for river channel mouth；
Fig. 2 is the A-A of Fig. 1 device to sectional view；
Fig. 3 is the B-B direction sectional view of device；
Fig. 4 is the C-C of device to sectional view；
The present invention is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment
Referring to Fig. 1 to Fig. 3, the pretreatment unit for Drain contamination for river channel mouth includes grid pond 1, rain sewage diversion pond 2, at sewage
Reason pond 1 and treatment tank 24, grid pond 1, rain sewage diversion pond 2 and treatment tank 1 are sequentially communicated.
One end of grid pond 1 is equipped with water inlet pipe 11, and water inlet pipe 11 connects Storm Sewer Network.Grid pond 1 and rain sewage diversion pond 2 are total
Some pool walls are equipped with water outlet 13, and the water in grid pond 1 flows into rain sewage diversion pond 2 by water outlet 13.In grid pond 1,
Equipped with grid 12, the water in grid pond 1 then flows into water outlet 13 after first passing through grid 12.Grid 12 is netted coarse rack, preferably
Use aperture for the stainless steel grid of 10mm.Rainwater in Storm Sewer Network enters grid pond 1 from water inlet pipe 11, by grid 12
Enter rain sewage diversion pond 2 from water outlet 13 afterwards, grid 12 intercepts the major diameters impurity such as leaf, branch in rainwater, avoids this
A little impurity enter in rain sewage diversion pond 2.
Referring to figs. 2 and 3, rain sewage diversion pond 2 is connected in 1 side of grid pond with the rainwater outlet pipe 22 outside pond.Rain is dirty
The bottom wall for shunting pond 2 is equipped with sewage inlet, and sewage inlet is connected to the sedimentation basin of 2 lower section of rain sewage diversion pond 2 and rain sewage diversion pond
32.The bottom of pond in rain sewage diversion pond 2 is provided with rain sewage diversion device 21, and rain sewage diversion device 21 utilizes law of buoyancy, passes through buoyancy
The either on or off of sewage inlet is controlled, to realize the separation of sewage and rainwater, sewage enters sedimentation basin 32 from sewage inlet, and
Rainwater directly passes through rainwater outlet pipe 22 and is discharged into river.
Referring to Fig. 3 and Fig. 4, treatment tank 1 includes that the sedimentation basin 32 being sequentially communicated, anti-nitration reaction pond 33 and two are heavy
Pond 34.Sedimentation basin 32 is connected to by water hole 322 with anti-nitration reaction pond 33, upper position of the water hole 322 in sedimentation basin 32
It sets.Sedimentation basin 32 is connected to by the sewage inlet at top with rain sewage diversion pond 2 in the lower section in rain sewage diversion pond 2.Sedimentation basin 32
Bottom be provided with sludge pipe 321, when the sludgd deposition of sedimentation basin 32 to a certain extent when, pass through sludge pipe 321 periodically extract
Base sludge.Clear liquid after precipitating in sedimentation basin 32 flows into anti-nitration reaction pond 33 from water hole 322.
Anti-nitration reaction pond 33 includes the reaction tank room of two connections, is equipped with one group of biochemical filler in each reaction tank room
331, biochemical filler 331 carries out anaerobic biochemical treatment to sewage.Pond carries out the one of reaction tank room of biochemical treatment and passed through water
Hole 322 is connected to sedimentation basin 32, another reaction tank room is connected to by via hole 333 with secondary settling tank 34.Detest by biochemical filler 331
Sewage after oxygen biochemical treatment flows into secondary settling tank 34 from via hole 333.Secondary settling tank 34 is inclined plate structure, interior to be equipped with lifting device 341.
34 pairs of the secondary settling tank sewage after contacting biochemical treatment precipitates.
Top of the treatment tank 24 in anti-nitration reaction pond 33 and secondary settling tank 34.It is equipped in treatment tank 24 quick
Water-yielding stratum 44, chitosan fluid dressing 43, water distributor 41 and snorkel 42.Quick water exit layer 44 is placed on the bottom wall in pond, predominantly greatly
The melon seeds piece or cobblestone of particle, it is preferred to use diameter is the cobblestone or melon seeds piece of 10mm.Chitosan fluid dressing 43 is quickly going out
The top of water layer 44, including multiple filtering material layers, filtering material layer mainly include water penetration adsorption filter layer and low permeability
Filter layer, water penetration adsorption filter layer and low permeability filter layer are arranged alternately.Water penetration adsorption filter layer is mainly zeolite, melon
Sub-pieces, the materials such as volcanic rock；Low permeability filter layer is mainly the soil added after the improvement of the seepy materials such as plant fiber, yellow sand
Earth.In the present embodiment, chitosan fluid dressing 43 includes seven layers, is successively known as first time, the second layer from top to bottom until layer 7, odd number
Layer is water penetration adsorption filter layer, and even numbers layer is low permeability filter layer.First layer is the melon seeds piece of 10 cm thicks, and the second layer is
10 cm thick modified soils, third layer are 10 centimetres of zeolites and volcanic rock mixed layer, and the 4th layer is 10 cm thick modified soils, the
Five layers of zeolite for 10 cm thicks, layer 6 are 10 centimetres of modified soils, and layer 7 is 10 centimetres of zeolites.Modified soil includes planting
Fibres, active carbon, yellow sand, flyash and soil, its preferred volume ratio are 3:1:3:1:3.Zeolite and volcanic rock mixed layer
In, zeolite and volcanic rock preferred volume ratio are 3:1.
Snorkel 42 is the pipeline for being covered with venthole, the pvc pipe for being DN50 in the present embodiment, one end insertion chitosan fluid dressing
43, one end exposure provides the oxygen of biochemical needs in air, for chitosan fluid dressing 43, and each square of chitosan fluid dressing needs to arrange
A piece snorkel 42.Water distributor 41 is in the top of chitosan fluid dressing 43, the mesh duct combination that the PVC pipeline for being DN25 forms, pipe
The water distributing pore of 4mm, water distributing pore interval 50mm are provided at 45 ° of road two sides.Water distributor 41 passes through in pipeline and treatment tank 1
Lifting device 341 is connected to, and for lifting device 341 by the water promotion in secondary settling tank 34 to water distributor 41, water distributor 41 is uniform by water again
It is sprinkled upon on chitosan fluid dressing 43, water successively penetrates through chitosan fluid dressing 43 by self gravity, finally reaches Quick water exit layer 44.It is dirty
The bottom of water treating pond 24 is connected to external purified water outlet pipe 45 (see Fig. 1), and the water in Quick water exit layer 44 directly passes through
Purified water outlet pipe 45 is discharged into river.
In view of maintenance and it is easy to maintain, the present embodiment the top for the treatment of tank one be provided with inspection chamber 5, check
Manhole 6 and inspection chamber 7.
The working principle of the pretreatment unit of Storm Sewer Network Drain contamination for river channel mouth of the present invention is described as follows:
Storm Sewer Network water enters the grid pond 1 of equipment from water inlet pipe 11, miscellaneous by the major diameter in the filtering water outlet of grid pond 1
Matter, grid pond need to regularly schedule personnel's cleaning.Water after grid filtration flows into rain sewage diversion pond 2, and rain dirt separator 21 is right
Sewage and rainwater are separated, and rainwater directly passes through rainwater outlet pipe 22 and is discharged into river, and sewage then enters treatment tank 1
Sedimentation basin 32, the supernatant after precipitating enter anti-nitration reaction pond 33 and carry out contacting biochemistry with biochemical filler 331, once
Sewage after biochemistry enters secondary settling tank 34 and precipitates again.Sewage after primary purification passes through lifting device 341 and water-distributing device 41
The top for the treatment of tank 24 is uniformly entered, then chitosan fluid dressing 43 is successively penetrated through by self gravity, finally reaches
Quick water exit layer 44.Utilize each filtering layer suction-operated of chitosan fluid dressing 43 and biochemical action, further purifying water body, mesophytization
Oxygen required for reacting is provided by snorkel 42.Sewage after secondary treatment flows to purified water water outlet by Quick water exit layer 44
Pipe 45 is discharged into river.Present invention is mainly applied to the pretreatments of the rainwater discharge outlet of sewage discharge, can effectively be directed to rainwater
The sewage of sewage draining exit is handled, and can obviously reduce the index of dirty water pollutant, reduces the load of the pollution of river.
When the sludgd deposition of sedimentation basin 32 to a certain extent when, can by sludge pipe 321 periodically extract base sludge into
Row maintenance.When it is time for repair, the maintenance of equipment can be carried out by inspection chamber 5, inspection chamber 6 and inspection chamber 7.
Compared with existing river preconditioning technique, the pretreatment unit of Storm Sewer Network Drain contamination for river channel mouth of the present invention have with
Lower advantage:
1) rainwater and sewage separation, clean rainwater will not have an impact biochemical processing process, and Treatment Stability is good；
2) anaerobic biochemical treatment used by adds biological cleaning filter tank technology, and operation is simple, high treating effect；
3) integration apparatus facilitates installation and debugging, compares other techniques, and occupied area is smaller, no plant regulatory, and management is just
It is prompt；The sludge generated in biochemical process is less, and processing is convenient；
4) energy saving without electrical equipments such as aerations.
Claims (6)
1. a kind of pretreatment unit for Drain contamination for river channel mouth, which is characterized in that including treatment tank two (4) and be sequentially communicated
Grid pond (1), rain sewage diversion pond (2), treatment tank one (3), grid pond (1) is connected to water inlet pipe (11), and internal
Equipped with grid (12), rain sewage diversion pond (2) are connected to external rainwater outlet pipe (22), and its bottom is provided with rain sewage diversion
Device (21), sewage can be separated with rainwater and sewage is made to enter treatment tank one (3) by rain sewage diversion device (21), at sewage
It manages and is equipped with biochemical filler (331) and lifting device (341) in pond one (3), be equipped with chitosan fluid dressing in treatment tank two (4)
(43), bottom is connected to external purified water outlet pipe (45), and it is sudden and violent that chitosan fluid dressing (43) other end is inserted into snorkel (42) one end
Dew in air, water distributor (41) chitosan fluid dressing (43) top and be connected to by pipeline with the lifting device (341),
Device (341) promotion is elevated to water distributor (41) by the water that biochemical filler (331) are handled, and water is spread across life by water distributor (41)
On object filtering layer (43), chitosan fluid dressing (43) carries out absorption and biochemical purification to water.
2. the pretreatment unit according to claim 1 for Drain contamination for river channel mouth, which is characterized in that the chitosan fluid dressing
It (43) include at least one water penetration adsorption filter layer and at least one low permeability filter layer, water penetration adsorption filter layer and low
Water permeable filter layer is arranged alternately, and is equipped with Quick water exit layer (44) in the lower section of chitosan fluid dressing (43).
3. the pretreatment unit according to claim 2 for Drain contamination for river channel mouth, which is characterized in that the treatment tank
One (3) include the sedimentation basin (32) being sequentially communicated, anti-nitration reaction pond (33) and secondary settling tank (34), sedimentation basin (32) and the rain
Dirt shunts pond (2) connection, and the lifting device (341) is arranged in secondary settling tank (34), and anti-nitration reaction pond 33 includes two companies
Logical reaction tank room is equipped with one group of biochemical filler (331) in each reaction tank room, and the water in anti-nitration reaction pond (33) passes through two
Group biochemical filler (331) flows into secondary settling tank (34) afterwards.
4. the pretreatment unit according to claim 3 for Drain contamination for river channel mouth, which is characterized in that the sedimentation basin (32)
In the lower section of the rain sewage diversion pond (2), the bottom wall of rain sewage diversion pond (2) is equipped with sewage inlet, and it is dirty that sewage inlet is connected to rain
Pond (2) and sedimentation basin (32) are shunted, rain sewage diversion device (21) utilizes law of buoyancy, passes through the opening of buoyancy control sewage inlet
It closes.
5. according to the described in any item pretreatment units for Drain contamination for river channel mouth of claim 2-4, which is characterized in that described low
Water permeable filter layer includes plant fiber, active carbon, yellow sand, flyash and the soil that volume ratio is 3:1:3:1:3.
6. the pretreatment unit according to claim 6 for Drain contamination for river channel mouth, which is characterized in that the water penetration absorption
Filter layer includes the zeolite and volcanic rock that volume ratio is 3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443285.0A CN109368935A (en) | 2018-11-29 | 2018-11-29 | A kind of pretreatment unit for Drain contamination for river channel mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443285.0A CN109368935A (en) | 2018-11-29 | 2018-11-29 | A kind of pretreatment unit for Drain contamination for river channel mouth |
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| Publication Number | Publication Date |
|---|---|
| CN109368935A true CN109368935A (en) | 2019-02-22 |
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|---|---|---|---|
| CN201811443285.0A Pending CN109368935A (en) | 2018-11-29 | 2018-11-29 | A kind of pretreatment unit for Drain contamination for river channel mouth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928523A (en) * | 2019-03-18 | 2019-06-25 | 浙江朗洲环保科技有限公司 | A kind of efficient process bed mud and blowdown control complex art |
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| CN102531173A (en) * | 2012-03-02 | 2012-07-04 | 浙江大学 | Composite medium biological filter sewage treatment method and matched device |
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| CN103951136A (en) * | 2014-02-28 | 2014-07-30 | 浙江省环境保护科学设计研究院 | Balcony wastewater and initial rainwater purifier and purification method used in rainwater pipe network |
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