CN109368935A - A kind of pretreatment device for river sewage outfall - Google Patents

A kind of pretreatment device for river sewage outfall Download PDF

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Publication number
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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China
Prior art keywords
sewage
filter layer
water
rain
tank
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Pending
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CN201811443285.0A
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Chinese (zh)
Inventor
吴旦钧
马尚行
戴永军
郁达飞
戴亚军
王�忠
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Zhejiang Jec New Energy Technology Co ltd
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Zhejiang Jec New Energy Technology Co ltd
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Priority to CN201811443285.0A priority Critical patent/CN109368935A/en
Publication of CN109368935A publication Critical patent/CN109368935A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • 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

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  • 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 invention relates to a pretreatment device for a drain outlet of a river channel, which comprises a sewage treatment pool II and grid pools which are sequentially communicated, wherein a rain and sewage diversion pool and a sewage treatment pool I are arranged in the grid pools, a rain and sewage diversion device is arranged at the bottom of the rain and sewage diversion pool, the rain and sewage diversion device can separate sewage from rainwater and enable the sewage to enter the sewage treatment pool I, biochemical filler and a lifting device are arranged in the sewage treatment pool I, a biological filter layer is arranged in the sewage treatment pool II, one end of a vent pipe is inserted into the biological filter layer, the other end of the vent pipe is exposed in the air, a water distributor is arranged above the biological filter layer and is communicated with the lifting device through a pipeline, water treated by the biochemical filler is lifted to the water distributor by the lifting device, the water distributor sprays the water onto the biological filter layer, and the biological filter layer adsorbs and biochemically purifies the. The invention separates rain and sewage firstly, then combines anaerobic biochemical treatment and biological purification and filtration, and has simple operation, good treatment effect and good treatment stability.

Description

A kind of pretreatment unit for Drain contamination for river channel mouth
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)

1.一种用于河道排污口的预处理装置，其特征在于，包括污水处理池二(4)和依次连通的格栅池(1)，雨污分流池(2)、污水处理池一(3)，格栅池(1)与进水管(11)连通，并且内部设有格栅(12)，雨污分流池(2)与外部的雨水出水管(22)连通，并且其底部设置有雨污分流装置(21)，雨污分流装置(21)可将污水与雨水分离并使污水进入污水处理池一(3)，污水处理池一(3)内设有生化填料(331)和提升装置(341)，污水处理池二(4)内设有生物滤层(43)，底部与外部的净化水出水管(45)连通，通气管(42)一端插入生物滤层(43)另一端暴露在空气中，布水器(41)在生物滤层(43)的上方并且通过管道与所述提升装置(341)连通，经过生化填料(331)处理的水被提升装置(341)提升到布水器(41)，布水器(41)把水洒到生物滤层(43)上，生物滤层(43)对水进行吸附和生化净化。1. a kind of pretreatment device for river channel sewage outlet, it is characterized in that, comprise sewage treatment pond two (4) and the grid pond (1) that is communicated successively, rain and sewage diversion pond (2), sewage treatment pond one (1) 3), the grille pool (1) is communicated with the water inlet pipe (11), and the interior is provided with a grille (12), the rain and sewage diversion pool (2) is communicated with the external rainwater outlet pipe (22), and its bottom is provided with a Rain and sewage diversion device (21), which can separate sewage from rainwater and make sewage enter sewage treatment tank one (3), and sewage treatment tank one (3) is provided with biochemical filler (331) and lift In the device (341), a biological filter layer (43) is arranged in the sewage treatment tank two (4), the bottom is communicated with an external purified water outlet pipe (45), and one end of the ventilation pipe (42) is inserted into the other end of the biological filter layer (43). When exposed to the air, the water distributor (41) is above the biological filter layer (43) and communicated with the lifting device (341) through a pipeline, and the water treated by the biochemical filler (331) is lifted by the lifting device (341). The water distributor (41) sprinkles water on the biological filter layer (43), and the biological filter layer (43) adsorbs and biochemically purifies the water. 2.根据权利要求1所述的用于河道排污口的预处理装置，其特征在于，所述生物滤层(43)包括至少一个透水性吸附过滤层和至少一个低透水性过滤层，透水性吸附过滤层和低透水性过滤层交替设置，在生物滤层(43)的下方设有快速出水层(44)。2. The pretreatment device for a river sewage outlet according to claim 1, wherein the biological filter layer (43) comprises at least one water permeable adsorption filter layer and at least one low water permeability filter layer, and the water permeability The adsorption filter layer and the low water permeability filter layer are alternately arranged, and a rapid water outlet layer (44) is arranged below the biological filter layer (43). 3.根据权利要求2所述的用于河道排污口的预处理装置，其特征在于，所述污水处理池一(3)包括依次连通的沉淀池(32)、反硝化反应池(33)和二沉池(34)，沉淀池(32)与所述雨污分流池(2)连通，所述提升装置(341)设置在二沉池(34)中，反硝化反应池33包括两个连通的反应池室，每个反应池室内设有一组生化填料(331)，反硝化反应池(33)中的水经过两组生化填料(331)后流入二沉池(34)。3. The pretreatment device for a river sewage outlet according to claim 2, wherein the sewage treatment tank one (3) comprises a sedimentation tank (32), a denitrification reaction tank (33) and The secondary sedimentation tank (34), the sedimentation tank (32) communicates with the rain and sewage diversion tank (2), the lifting device (341) is arranged in the secondary sedimentation tank (34), and the denitrification reaction tank 33 includes two communication Each reaction tank chamber is provided with a group of biochemical fillers (331), and the water in the denitrification reaction tank (33) flows into the secondary sedimentation tank (34) after passing through two groups of biochemical fillers (331). 4.根据权利要求3所述的用于河道排污口的预处理装置，其特征在于，所述沉淀池(32)在所述雨污分流池(2)的下方，雨污分流池(2)的底壁上设有污水入口，污水入口连通雨污分流池(2)和沉淀池(32)，雨污分流装置(21)利用浮力原理，通过浮力控制污水入口的打开关闭。4. The pretreatment device for a river channel sewage outlet according to claim 3, wherein the sedimentation tank (32) is below the rain and sewage diversion tank (2), and the rain and sewage diversion tank (2) There is a sewage inlet on the bottom wall of the sewage inlet, which is connected to the rain and sewage diversion tank (2) and the sedimentation tank (32). The rain and sewage diversion device (21) uses the buoyancy principle to control the opening and closing of the sewage inlet through buoyancy. 5.根据权利要求2-4任一项所述的用于河道排污口的预处理装置，其特征在于，所述低透水性过滤层包括体积比为3:1:3:1:3的植物纤维、活性炭、黄沙、粉煤灰和土壤。5. The pretreatment device for river sewage outfalls according to any one of claims 2-4, wherein the low water permeability filter layer comprises plants with a volume ratio of 3:1:3:1:3 Fiber, activated carbon, yellow sand, fly ash and soil. 6.根据权利要求6所述的用于河道排污口的预处理装置，其特征在于，所述透水性吸附过滤层包括体积比为3:1的沸石与火山岩。6 . The pretreatment device for river sewage outfalls according to claim 6 , wherein the water-permeable adsorption filter layer comprises zeolite and volcanic rock with a volume ratio of 3:1. 7 .
CN201811443285.0A 2018-11-29 2018-11-29 A kind of pretreatment device for river sewage outfall Pending CN109368935A (en)

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