CN104817209A - Buried efficient treater of initial rainwater - Google Patents

Buried efficient treater of initial rainwater Download PDF

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Publication number
CN104817209A
CN104817209A CN201510211043.9A CN201510211043A CN104817209A CN 104817209 A CN104817209 A CN 104817209A CN 201510211043 A CN201510211043 A CN 201510211043A CN 104817209 A CN104817209 A CN 104817209A
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China
Prior art keywords
air flotation
flotation pool
water
tank
same way
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CN201510211043.9A
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CN104817209B (en
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洪步林
李冬生
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Anhui Qing Huan Water Conservancy Project Science And Technology Ltd
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Anhui Qing Huan Water Conservancy Project Science And Technology Ltd
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Abstract

The invention discloses a buried efficient treater of initial rainwater. The buried efficient treater integrates coagulating sedimentation, air flotation, quick filtration and intelligent detection and features small floor area, high treatment efficiency and high load resistance; treatment level of the initial rainwater can be automatically adjusted according to water conditions, the initial rainwater is quickly subjected to coagulating sedimentation, air flotation, water reoxygenation, filtration and the like, energy is saved, ideal cleaning effect is achieved, remote supervision is available, mangers are allowed to monitor the flow of a drainage network and the water conditions anytime and anywhere and monitor the treatment state of rain sewage in the treater, remote intelligent control is available, management of a rain sewage network is greatly facilitated, and the ability of people to control the rain sewage is improved.

Description

Buried efficient early-stage rainwater treatment unit
Technical field
The present invention relates to a kind of device of early-stage rainwater process, this device is generally arranged on Combined Municipal pipeline or storm sewer, is applicable to the occasion not having sewage work or sewage work's processing power to be not enough to process early-stage rainwater.
Background technology
In recent years, China's problem of environmental pollution is very serious, and the phenomenons such as stench water body, haze are quite general, pay much attention to throughout the country, particularly water environmental problems, huge on the life impact of people.At present, China's sewerage system mainly contains combined system and separate system two kinds of rain sewage drainage systems.Wherein combined drainage system dominate, it is general that city rain sewage network misconnection disorderly connects phenomenon, the processing power that many cities are faced with sewage work is not enough, every rainy time, sewage work is forced to close sewage network, cause a large amount of early-stage rainwaters and sewage outflow, cause serious environmental pollution; Some flourishing cities spend a large amount of manpower and materials to carry out rain sewage separation improvement project, rainwater after shunting is directly discharged into natural water, so sewage obtains good control, but therefore water environment pollution does not but make moderate progress, increasingly serious on the contrary.Through researching and analysing repeatedly, originally having its source in and have ignored early-stage rainwater pollution.
Early-stage rainwater, the pollution gas such as a large amount of sour gas, vehicle exhaust, plant gas in air has been dissolved at the rainfall initial stage, behind landing ground, wash away asphalt concrete road, add sewage, mud and the rubbish etc. that stockpile in the dirty channel of rain, make containing a large amount of pollution substances such as organism, pathogenic agent, heavy metal, grease, suspended solids in rainwater, therefore, the pollution level of early-stage rainwater is higher, usually to exceed the pollution level of common municipal effluent.In today of scientific and technological high speed development, people pollute in the face of early-stage rainwater, still lack effective control measures and control means.
Summary of the invention
The technical problem to be solved in the present invention is that existing water exhaust system cannot efficiently process contaminative early-stage rainwater, and any discharge of early-stage rainwater causes a large amount of pollution, provides a kind of buried efficient early-stage rainwater treatment unit for this reason.
Technical scheme of the present invention is: buried efficient early-stage rainwater treatment unit, it comprises intelligence and cuts dirty system, the watch-keeping cubicle of built-in intelligence housing, built-in blower unit, the pump house of gas-holder and stirrer, between the removing contamination of built-in garbage pool, the grid filtration pond of built-in grille, coagulative precipitation tank, air flotation pool, unhurried current separate tank, rapid filter and flushing tank etc., described intelligence is cut dirty system and is comprised inlet channel, overflow spout, wastewater interception pipe and Vatch basin, in described Vatch basin, adaptation has the water level detecting probe be connected with Intelligent control cabinet signal respectively, first water quality detection probe and waterpower turnover panel, described wastewater interception pipe is communicated with grid filtration pond by the first quick close valve be connected with Intelligent control cabinet signal, described remove contamination between be positioned at above grid filtration pond, one end, described grid filtration pond is communicated with sewage network by the second quick close valve be connected with Intelligent control cabinet signal, described grid filtration pond, coagulative precipitation tank, air flotation pool, unhurried current separate tank is communicated with successively with rapid filter, described flushing tank by the pneumatic flush gate that is connected with Intelligent control cabinet signal respectively with coagulative precipitation tank, air flotation pool, unhurried current separate tank is communicated with bottom rapid filter, the paddle of described stirrer stretches in coagulative precipitation tank, in described air flotation pool, adaptation has the microporous aeration disc/pipe be connected with Intelligent control cabinet signal, described microporous aeration disc/pipe is communicated with gas-holder by gas exhaust duct, described rapid filter side is provided with water outlet, water outlet is lower than coagulative precipitation tank water-in, described have flushing tank water-in by flushing tank side adaptation, described flushing tank water-in and water outlet contour, on described water outlet and flushing tank water-in, all adaptation has flap valve, in described rapid filter below water outlet between adaptation have floating stuffing filtering layer, the second water quality detection probe is also provided with in described rapid filter.
Air flotation pool described in such scheme comprises the first air flotation pool being in the same way arranged in order connection, reverse air flotation pool and second air flotation pool in the same way, described first in the same way air flotation pool be communicated with the bottom of coagulative precipitation tank, described reverse air flotation pool and first is provided with the first dividing plate of air flotation pool vertical partition wall in the same way between air flotation pool, described first dividing plate top offers connected entrance, described second is provided with between air flotation pool and reverse air flotation pool in the same way by the second partition of air flotation pool vertical partition wall, connected entrance is offered bottom described second partition, described second in the same way air flotation pool ease up stream separate tank between be provided with the 3rd dividing plate of air flotation pool vertical partition wall, described 3rd dividing plate top offers connected entrance, the first described dividing plate is equal with the 3rd dividing plate apical side height, all lower than bead under water outlet, described microporous aeration disc/pipe distributes in the horizontal direction at air flotation pool inner bottom part.
The cross section of separate tank of flowing slowly described in such scheme is greater than coagulative precipitation tank, first air flotation pool, reverse air flotation pool and second cross section of arbitrary in air flotation pool in the same way in the same way.
Coagulative precipitation tank described in such scheme, reverse air flotation pool gentle stream separate tank inner bottom part is provided with mud-collecting slot, and described mud-collecting slot is positioned at the side relative with pneumatic flush gate, and in described mud-collecting slot, adaptation has slush pump.
The filtering layer of floating stuffing described in such scheme comprises upper filter screen, lower filter screen and is filled in the floated filter packing between upper filter screen and lower filter screen, along being not less than 500mm under described floating stuffing filtering layer distance water outlet.
Water level detecting probe described in such scheme and the first water quality detection probe are near inlet channel, 10 ~ 20cm bottom described first water quality detection probe distance Vatch basin, described second water quality detection is popped one's head near water outlet and is positioned at 10 ~ 20cm above floating stuffing filtering layer.
The grid setting angle in the pond of grid filtration described in such scheme becomes 50 ° ~ 80 ° with level.
Manhole is arranged at the top of coagulative precipitation tank described in such scheme, air flotation pool, unhurried current separate tank and rapid filter respectively adaptation, described in remove contamination between, pump house and watch-keeping cubicle respectively adaptation have door and window.
The invention has the beneficial effects as follows that this device integrates coagulating sedimentation, air supporting, fast filtering technology and Intelligent Measurement, have that floor space is little, processing efficiency is high, the features such as anti-portative power is strong, the process such as coagulating sedimentation, air supporting, water reoxygenation and filtration can be carried out rapidly to early-stage rainwater, SS suspended substance in the rain sewage that effective removal is brought from combined system pipeline by early-stage rainwater and greasy dirt, SS removal efficiency can reach more than 90%-99.5%, the clearance of colourity can reach 70%-95%, and cuts down the source of pollution such as COD and BOD (abatement more than 60%); Simultaneously, the object of the efficient reoxygenation of water after to process can be arrived, and drastically increase the control ability of people to rain waste water control by intelligent monitoring, possess skills stable and reliable for performance, processing load is high, water resistant amount and change of water quality ability are comparatively strong, processing efficiency is high, reduced investment, take up an area few, the advantage such as easy to maintenance, is applicable to the occasion not having sewage work or sewage work's processing power to be not enough to process early-stage rainwater.
Accompanying drawing explanation
Fig. 1 is the process principle figure of buried efficient early-stage rainwater treatment unit;
Fig. 2 is the plot plan of buried efficient early-stage rainwater treatment unit;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the sectional view of the B-B of Fig. 2;
Fig. 5 is the sectional view of the C-C of Fig. 3;
In figure, 1, inlet channel, 2, wastewater interception pipe, 3, overflow spout, 4, Vatch basin, 5, water level detecting probe, 6, first water quality detection probe, 7, waterpower turnover panel, 8, first quick-closing gate, 9, grid, 10, grid filtration pond, 11, second quick-closing gate, 12, sewage network, 13, coagulative precipitation tank, 14, mud-collecting slot, 15, slush pump, 16, first air flotation pool in the same way, 17, reverse air flotation pool, 18, second air flotation pool in the same way, 19, pneumatic flush gate, 20, unhurried current separate tank, 21, rapid filter, 22, flushing tank, 23, water outlet, 24, flap valve, 25, flushing tank water-in, 26, between removing contamination, 27, garbage pool, 28, Intelligent control cabinet, 29, watch-keeping cubicle, 30, blower unit, 31, gas-holder, 32, stirrer, 33, pump house, 34, manhole, 35, door and window, 36, gas exhaust duct, 37, microporous aeration disc/pipe, 38, second water quality probe, 39, floating stuffing filtering layer, 40, first dividing plate, 41, second partition, 42, 3rd dividing plate.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As Figure 1-Figure 5, the present invention mainly comprises intelligence and cuts dirty system, the watch-keeping cubicle 29 of built-in intelligence housing 28, built-in blower unit 30, the pump house 33 of gas-holder 31 and stirrer 32, between the removing contamination of built-in garbage pool 27 26, the grid filtration pond 10 of built-in grille 9, coagulative precipitation tank 13, air flotation pool, unhurried current separate tank 20, rapid filter 21 and flushing tank 22, described intelligence is cut dirty system and is comprised inlet channel 1, overflow spout 3, wastewater interception pipe 2 and Vatch basin 4, in described Vatch basin 4, adaptation has the water level detecting probe 5 be connected with Intelligent control cabinet signal respectively, first water quality detection probe 6 and waterpower turnover panel 7, described wastewater interception pipe is communicated with grid filtration pond 10 by the first quick close valve 9 be connected with Intelligent control cabinet signal, described remove contamination between 26 be positioned at above grid filtration pond 10, one end, described grid filtration pond 10 is communicated with sewage network 12 by the second quick close valve 11 be connected with Intelligent control cabinet signal, described grid filtration pond 10, coagulative precipitation tank 13, air flotation pool, unhurried current separate tank 20 is communicated with successively with rapid filter 21, coagulative precipitation tank 13 is positioned at the bottom of coagulative precipitation tank with the connectivity part of air flotation pool, described flushing tank 22 by the pneumatic flush gate 19 that is connected with Intelligent control cabinet signal respectively with coagulative precipitation tank 13, air flotation pool, unhurried current separate tank 20 is communicated with bottom rapid filter 21 grade, the paddle of described stirrer 32 stretches in coagulative precipitation tank 13, air flotation pool can comprise the first air flotation pool 16 being in the same way arranged in order connection, reverse air flotation pool 17 and second air flotation pool 18 in the same way, described first in the same way air flotation pool 16 be communicated with the bottom of coagulative precipitation tank 13, current are made to enter the first air flotation pool 16 in the same way through the out-of-date bottom by coagulative precipitation tank 13, described reverse air flotation pool 17 and first is provided with the first dividing plate 40 of air flotation pool vertical partition wall in the same way between air flotation pool 16, described first dividing plate 40 top offers connected entrance, current are made to diffuse in reverse air flotation pool 17 through the out-of-date top by the first air flotation pool 16 in the same way, described second is provided with between air flotation pool 18 and reverse air flotation pool 17 in the same way by the second partition 41 of air flotation pool vertical partition wall, connected entrance is offered bottom described second partition 41, make current through out-of-date bottom inflow second air flotation pool 18 in the same way by reverse air flotation pool 17, described second is provided with the 3rd dividing plate 42 of air flotation pool vertical partition wall between the gentle stream separate tank 20 of air flotation pool 18 in the same way, described 3rd dividing plate 42 top offers connected entrance, current are made to diffuse in unhurried current separate tank 20 through the out-of-date top by the second air flotation pool 18 in the same way.In described air flotation pool, adaptation has the microporous aeration disc/pipe 37 be connected with Intelligent control cabinet signal, , described microporous aeration disc/pipe 37 distributes in the horizontal direction at air flotation pool inner bottom part, described microporous aeration disc/pipe 37 is communicated with gas-holder 31 by gas exhaust duct 36, described rapid filter 21 side is provided with water outlet 23, water outlet 23 is lower than coagulative precipitation tank 13 water-in, described have flushing tank water-in 25 by flushing tank 22 side adaptation, described flushing tank water-in 25 is contour with water outlet 23, on described water outlet 23 and flushing tank water-in 25, all adaptation has flap valve 24, in described rapid filter 21, below water outlet 23, adaptation has floating stuffing filtering layer 39, the second water quality detection probe 38 is also provided with in described rapid filter 21, the first described dividing plate 40 and the height of the 3rd dividing plate 42 are lower than water outlet 23, in order to ensure the sedimentation effect of unhurried current separate tank 20, the cross section of unhurried current separate tank 20 is greater than coagulative precipitation tank 13, first air flotation pool 16 in the same way, reverse air flotation pool 17 and second is any one cross section in air flotation pool 18 in the same way, be beneficial to and slow down current.
Coagulative precipitation tank 13, reverse air flotation pool 17 gentle stream separate tank 20 inner bottom part are provided with mud-collecting slot 14, and described mud-collecting slot is positioned at the side relative with pneumatic flush gate, and in mud-collecting slot, adaptation has slush pump 15, is drained by the foreign material of precipitation.
Floating stuffing filtering layer 39 can comprise upper filter screen, lower filter screen and be filled in the floated filter packing between upper filter screen and lower filter screen, described floating stuffing filtering layer 39 is not less than 500mm apart from water outlet 23 times edges, prevents the turbulent water floating stuffing filtering layer through water outlet.
Manhole 34 is arranged at the top of coagulative precipitation tank 13, air flotation pool, unhurried current separate tank 20 and rapid filter 21 respectively adaptation, described in remove contamination between 26, pump house 33 and watch-keeping cubicle 29 respectively adaptation have door and window 35.
Water level detecting probe 5 and the first water quality detection probe 6 are near inlet channel 1, described first water quality detection probe 6 is preferably 10 ~ 20cm bottom distance Vatch basins 4, and described second water quality detection probe 38 is preferably positioned at 10 ~ 20cm above floating stuffing filtering layer 39 near water outlets 23.
In order to ensure that the best of grid 9 blocks dirty effect, grid 9 setting angle in grid filtration pond 10 preferably becomes 50 ° ~ 80 ° with level.
Wherein, first water quality detection probe 6, water level detecting probe 5, waterpower turnover panel 7, stirrer 32, microporous aeration disc/pipe 37, gas blower 30, gas-holder 31, second water quality detection probe the 38, first quick close valve 8, second quick close valve 11 are all connected with Intelligent control cabinet 28 signal with pneumatic flush gate 19, control to integrate by it.
principle of work of the present invention is as follows:
During work, first the first water quality probe detected in Vatch basin detects data, this water quality data signal and direct draining set(ting)value are compared, confirm the water quality condition flowing through inlet channel, if water quality is good, meet direct draining code requirement, Intelligent control cabinet sends closedown first quick-closing gate signal, the controlled automatic closedown wastewater interception pipe of first quick-closing gate, the clean rainwater come from inlet channel stream collects in Vatch basin, when water level reaches designated water level, waterpower turnover panel is opened automatically, and clean rainwater is able to direct discharge, if the water quality flowing through inlet channel does not meet direct draining code requirement, waterpower turnover panel works the weir plate that dams, and Intelligent control cabinet opens the first quick-closing gate automatically, and current flow into grid filtration pond through grid filtration, remove some larger suspended substances by grid, meanwhile, the detection signal that the first water quality is popped one's head in identifies by Intelligent control cabinet further, confirms the pollution level of the water flowed into, if pollution level is higher than severe sewage set(ting)value, automatically opens the second quick-closing gate, makes this part water flow into sewage network, if pollution level is lower than severe sewage set(ting)value, then current are that mild or moderate pollutes, close the second quick-closing gate, current enter coagulative precipitation tank, carry out coagulating sedimentation pre-treatment, some larger particles are precipitated to be gathered in mud-collecting slot, is got rid of by slush pump, and now whether Intelligent control cabinet works according to the chemical feeding quantity of pollution level determination retardant and stirrer and working dynamics etc., current enter air flotation pool after coagulating sedimentation, bottom coagulative precipitation tank, first enter the first air flotation pool in the same way, again from first in the same way air flotation pool top flow into reverse air flotation pool, the second air flotation pool is in the same way flowed into by second partition again bottom reverse air flotation pool, flow direction is through checker repeatedly up and down, water Uniform Flow in air flotation pool, microporous aeration disc or micropore aeration pipe are under the effect of gas blower and gas-holder, spray microbubble tiny in a large number, form water, gas and the three-phase mixture of material need be removed, in interfacial tension, under the acting in conjunction of the many kinds of forces such as bubble rising buoyancy and hydrostaticpressure difference, promote that micro bubble sticks to after on the organism such as the small greasy dirt particle that need remove, the water surface is floated to because adherend density is less than water, due to first in the same way between air flotation pool and reverse air flotation pool the first divider height lower than water outlet height, current are when from first, air flotation pool passes through the first dividing plate overflow to reverse air flotation pool in the same way, current not disturbance water surface SS suspended substance and greasy dirt etc., these SS suspended substance and greasy dirts etc. are stopped by the second partition of reverse air flotation pool and second in the same way between air flotation pool, thus separated removal, this not only can remove in sewage be in emulsified state oil beyond, can also except decontaminated water Midst density be close to the impurity of the fine suspended particle state of water, current are in air flotation pool, the incorgruous alternately change with aqueous vapor in the same way through aqueous vapor, not only improve air flotation effect, and enhance water reoxygenation effect, current enter unhurried current separate tank after air-flotation process, and the overflow section due to the separate tank that flows slowly is long-pending comparatively large, low water velocities, and remaining impurity precipitates again, and throw out is taken away through mud-collecting slot slush pump, is sent to sewage network, current are postponed bottom diverting flow pond and are entered rapid filter, make the suspended substance floating through air-flotation process rest on the unhurried current separate tank water surface, eliminate SS suspended substance and greasy dirt etc. further, current in rapid filter through floating filler filtering layer filter after, water quality reaches the emission request of setting, discharge from flushing tank water-in and water outlet respectively, clean water enters flushing tank by flushing tank water-in, the flap valve on flushing tank water-in is utilized to make flushing tank store full water, when grid filtration pond, coagulative precipitation tank, air flotation pool, when the throw out flow slowly in separate tank and rapid filter (also can be collectively referred to as water treating pond) need be cleared up, close the first quick-closing gate, slush pump is utilized to be drained by the water in water treating pond, now under the effect of gas blower, enough gas is stored in gas-holder, intelligent control system is by controlling the pneumatic flush gate of valve open on gas exhaust duct, water in flushing tank under gravity, water treating pond bottom settlings thing is rinsed, after flushing, throw out is under the effect of rinsing current, be brought into mud-collecting slot, intelligent control system starts slush pump automatically, mud is discharged, regular or irregular automatic flushing function can be realized, being provided with outside the water outlet of rapid filter can the flap valve of reverse-filling, prevents heavy rain from causing water outlet water level to rise, pours in down a chimney and enter water treating pond.
Because coagulative precipitation tank water-in water level is higher than the water outlet water level of rapid filter, current under gravity, flow through from water treating pond, when the waterhead of the water outlet of coagulative precipitation tank water-in and rapid filter is larger, current in device are very fast, and Intelligent control cabinet regulates the intensity of coagulating sedimentation and micro-pore aeration automatically by the detection data that the second water quality detection is popped one's head in, and the chemical feeding quantity of retardant, thus change coagulating sedimentation and pneumatically supported effect, realize water treatment automatic control and adjustment function; When the devices such as air supporting in device need to safeguard, close the first quick-closing gate, the second quick-closing gate and pneumatic flush gate, utilize the water in slush pump discharging device, maintenance personnel, by manhole access to plant, carries out examination and maintenance work.
Intelligent control cabinet and mobile network interconnected, this device is made not only to have the strength disposal automatically regulating early-stage rainwater by water quality condition, not only energy-conservation but also desirable clean effect can be reached, and there is remote monitoring ability, managerial personnel can monitor flow and the water quality condition of network of drains whenever and wherever possible, and the state of rain sewage disposal in this water treatment device, and can long-distance intelligent control be carried out, be very easy to the management to rain sewage network, reach and improve people to the object of the control ability of rain waste water control.
This device current residence time is short, natural water distribution, and water disturbance is little, water outlet SS suspended substance and grease low, clearance can reach more than 90%-99.5%, and the clearance of colourity can reach 70%-95%, also has cut down effect preferably to COD, the BOD in water.Also carry out reoxygenation to current, strengthen water body active, improve water quality, early-stage rainwater after treatment, utilizes the waterhead of water treating pond intake-outlet, enters water body by run by gravity simultaneously, promotes, saved the energy widely without the need to power-equipment.

Claims (5)

1. buried efficient early-stage rainwater treatment unit, it is characterized in that it comprises intelligence and cuts dirty system, the watch-keeping cubicle of built-in intelligence housing, built-in blower unit, the pump house of gas-holder and stirrer, between the removing contamination of built-in garbage pool, the grid filtration pond of built-in grille, coagulative precipitation tank, air flotation pool, unhurried current separate tank, rapid filter and flushing tank etc., described intelligence is cut dirty system and is comprised inlet channel, overflow spout, wastewater interception pipe and Vatch basin, in described Vatch basin, adaptation has the water level detecting probe be connected with Intelligent control cabinet signal respectively, first water quality detection probe and waterpower turnover panel, described wastewater interception pipe is communicated with grid filtration pond by the first quick close valve be connected with Intelligent control cabinet signal, described remove contamination between be positioned at above grid filtration pond, one end, described grid filtration pond is communicated with sewage network by the second quick close valve be connected with Intelligent control cabinet signal, described grid filtration pond, coagulative precipitation tank, air flotation pool, unhurried current separate tank is communicated with successively with rapid filter, described flushing tank by the pneumatic flush gate that is connected with Intelligent control cabinet signal respectively with coagulative precipitation tank, air flotation pool, unhurried current separate tank is communicated with bottom rapid filter, the paddle of described stirrer stretches in coagulative precipitation tank, in described air flotation pool, adaptation has the microporous aeration disc/pipe be connected with Intelligent control cabinet signal, described microporous aeration disc/pipe is communicated with gas-holder by gas exhaust duct, described rapid filter side is provided with water outlet, water outlet is lower than coagulative precipitation tank water-in, described flushing tank side adaptation has flushing tank water-in, described flushing tank water-in and water outlet contour, on described water outlet and flushing tank water-in, all adaptation has flap valve, in described rapid filter below water outlet between adaptation have floating stuffing filtering layer, the second water quality detection probe is also provided with in described rapid filter.
2. buried efficient early-stage rainwater treatment unit as claimed in claim 1, it is characterized in that described air flotation pool comprises the first air flotation pool being in the same way arranged in order connection, reverse air flotation pool and second air flotation pool in the same way, described first in the same way air flotation pool be communicated with the bottom of coagulative precipitation tank, described reverse air flotation pool and first is provided with the first dividing plate of air flotation pool vertical partition wall in the same way between air flotation pool, described first dividing plate top offers connected entrance, described second is provided with between air flotation pool and reverse air flotation pool in the same way by the second partition of air flotation pool vertical partition wall, connected entrance is offered bottom described second partition, described second in the same way air flotation pool ease up stream separate tank between be provided with the 3rd dividing plate of air flotation pool vertical partition wall, described 3rd dividing plate top offers connected entrance, the first described dividing plate is equal with the 3rd dividing plate apical side height, all lower than bead under water outlet, described microporous aeration disc/pipe distributes in the horizontal direction at air flotation pool inner bottom part.
3. buried efficient early-stage rainwater treatment unit as claimed in claim 2, is characterized in that the cross section of described unhurried current separate tank is greater than coagulative precipitation tank, first air flotation pool, reverse air flotation pool and second any one cross section in air flotation pool in the same way in the same way.
4. buried efficient early-stage rainwater treatment unit as claimed in claim 1, it is characterized in that described coagulative precipitation tank, reverse air flotation pool gentle stream separate tank inner bottom part is provided with mud-collecting slot, described mud-collecting slot is positioned at the side relative with pneumatic flush gate, and in described mud-collecting slot, adaptation has slush pump.
5. buried efficient early-stage rainwater treatment unit as claimed in claim 1, it is characterized in that described floating stuffing filtering layer comprises upper filter screen, lower filter screen and is filled in the floated filter packing between upper filter screen and lower filter screen, along being not less than 500mm under described floating stuffing filtering layer distance water outlet.
CN201510211043.9A 2015-04-29 2015-04-29 Buried efficient early-stage rainwater processing means Active CN104817209B (en)

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CN108793612A (en) * 2018-07-06 2018-11-13 浙江正展工程项目管理有限公司 A kind of energy-saving town sewage treatment system
CN109052851A (en) * 2018-09-03 2018-12-21 黄姣雅 Dispersed wastewater ecological purification system
PL422995A1 (en) * 2017-09-28 2019-04-08 Stasiełuk Dorota Stacja Paliw Rainwater and snowmelt treatment system
CN110145016A (en) * 2019-04-29 2019-08-20 中国市政工程华北设计研究总院有限公司 A kind of rainwater applied to pipe gallery enters corridor device
CN110565476A (en) * 2019-09-09 2019-12-13 北京世纪立成园林绿化工程有限公司 road rainwater collection system beneficial to improving heat island effect of residential area
CN111705888A (en) * 2020-06-05 2020-09-25 常州市市政工程设计研究院有限公司 Rain and sewage diversion system for separating initial rainwater from later rainwater
CN111714959A (en) * 2020-05-19 2020-09-29 李献英 Natural filtration and precipitation equipment for sewage pretreatment
CN112147248A (en) * 2020-09-23 2020-12-29 浙江求实环境监测有限公司 Method for rapidly determining content of benzene series components in waste gas of fixed pollution source
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CN112647582A (en) * 2020-12-14 2021-04-13 北京建筑大学 Rainwater runoff regulation and control device based on pipe network regulation and storage

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