CN107288198B - A kind of Rain Garden system for protecting bottom denitrification anaerobic area - Google Patents
A kind of Rain Garden system for protecting bottom denitrification anaerobic area Download PDFInfo
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- CN107288198B CN107288198B CN201710499078.6A CN201710499078A CN107288198B CN 107288198 B CN107288198 B CN 107288198B CN 201710499078 A CN201710499078 A CN 201710499078A CN 107288198 B CN107288198 B CN 107288198B
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- 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
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/102—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins using already existing parts of the sewer system for runoff-regulation
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/103—Naturals or landscape retention bodies, e.g. ponds
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention discloses the Rain Garden systems that one kind can protect bottom denitrification anaerobic area, including preposition pond, preposition pond includes decanting zone, transition region, decanting zone bottom is equipped with sludge pump, sludge pump is connect with pressure spoil disposal pipeline, decanting zone is connect by filtrate area with transition region, transition region is connect by preposition pond discharge pipe with rainwater stagnant area, the first water reserve is successively arranged in rainwater stagnant area, soil horizon, grit layer and compound reverse osmosis layer, collector pipe is equipped in gravel layer, rainwater stagnant area is externally provided with external pond body, external pond body is equipped with the second water reserve, first water reserve is equipped with the 4th overflow pipe, rainwater is entered in external pond body by the 4th overflow pipe overflow, the second overflow pipe is equipped in external pond body, the rainwater of overflow is drained into municipal sewage pipe network.Structure of the invention is reasonable, collects the rainwash rainwater in cell and carries out advanced treating to it, can not only promote its flood detention effect but also the reinforcing controlled runoff rainwater pollution may be implemented.
Description
Technical field
The present invention relates to the Rain Garden systems that can protect bottom denitrification anaerobic area, belong to urban ecology field.
Background technique
In recent years, the environmental problem in China received more and more attention, and Ecological Civilization Construction also becomes China Xincheng District
With the important guiding principle of residential quarter construction, due to a large amount of uses of concrete and bituminous pavement, ground impermeability is sharply increased,
So as to cause urban waterlogging problem seriously affected the normal life and trip of China resident, for national life and wealth
It produces safety and has buried hidden trouble.In order to solve this problem, China is successively putting into effect multinomial relevant policies and rule in recent years
It is fixed, greatly develop the construction in sponge city.
It is particularly important for the collection and advanced treating of runoff rainwater in the construction of Xincheng District, and in Rain Garden system
In system, the key facility for playing the role of collection and processing for rainwater is exactly that biology is detained facility.For traditional biological delaying basin
For, traditional is detained pool structure because of a large amount of evaporations of bottom pore water under prolonged drought, and bottom anaerobic environment is caused to meet with
Destruction has been arrived, denitrification is inhibited, improvement technique is had investigated after this --- the setting of underdrain pipe is flooded
Area makes problem obtain interim solution, but the flooding area also only can just deposit during the rainwater infiltration of single rainfall
, a rainfall terminates, rainwater all processing rack up after, flooding area remains static again, equally can under prolonged drought
There is the problem of moisture largely evaporates, the anaerobic environment of bottom can not be kept for a long time, this can cut down the scavenging effect of delaying basin again.
For example (application number: 201420025661.5): a kind of biology enhancing nitrogen removal effect in storm runoff is stagnant for patent
Pond is stayed, the patent idea is novel, but the also only ability normal operation during single rainfall of anti-filter therein reflux attachment, does
It not can guarantee the lasting water outlet of collector pipe under non-irrigated state, so that bottom generates slough, influence the effluent quality of rainfall next time.
And the present apparatus can be very good to solve this problem, the rainwater in the second water reserve can pass through reverse osmosis effect pair during a drought
The anaerobic environment of stagnant area bottom is protected, while guaranteeing the lasting water outlet of collector pipe, and entire reverse osmosis process relies on Natural Water
The difference in height of position carries out automatically, and external additional power facility is not needed without manual intervention yet, and energy conservation and environmental protection is enhancing
Retention capacity is also increased while dirty effect, and there is positive directive significance for the construction of new cell.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention, which provides one kind, can protect bottom denitrification
The Rain Garden system of anaerobic zone, it is structurally reasonable, it collects the rainwash rainwater in cell and advanced treating is carried out to it, both
Its flood detention effect can be promoted may be implemented the reinforcing controlled runoff rainwater pollution again.
Technical solution: in order to solve the above technical problems, one kind of the invention can protect the rainwater in bottom denitrification anaerobic area
Garden system, including preposition pond, preposition pond include decanting zone, transition region, the decanting zone with and municipal administration Storm Sewer Network be connected
Water inlet pipe connection, decanting zone bottom is equipped with sludge pump, and sludge pump connect with pressure spoil disposal pipeline, decanting zone pass through filtrate area and
Transition region connection, transition region are connect by preposition pond discharge pipe with rainwater stagnant area, are successively arranged first in rainwater stagnant area
Water reserve, soil horizon, grit layer, gravel layer and compound reverse osmosis layer, collector pipe is equipped in gravel layer, and rainwater stagnant area is externally provided with outer
Portion's pond body, external pond body are equipped with the second water reserve, and the first water reserve is equipped with the 4th overflow pipe, and rainwater passes through the 4th overflow pipe overflow
Intracorporal second water reserve in external pond is entered, the second overflow pipe is equipped in external pond body, the rainwater of overflow is drained into municipal administration
In sewage network.
Preferably, the external pond body is circle, rainwater stagnant area includes four delay units, stagnant before respectively two
It is detained unit after staying unit and two, each delay unit is sector, and each delay unit is followed successively by the first water storage from top to bottom
Area, soil horizon, grit floor, gravel layer and compound reverse osmosis floor are equipped with collector pipe, preposition pond discharge pipe and two in each gravel layer
It is detained the first water reserve connection of unit before a, is detained unit after two and is connected to by third overflow pipe with preceding delay unit, the
Four overflow pipes are detained on unit after being located at.
Preferably, the tube top absolute altitude of preposition pond discharge pipe must not be higher than the tube bottom absolute altitude of preposition pond water inlet pipe, it is described heavy
It drops area and is equipped with the first overflow pipe, the tube bottom absolute altitude of the first overflow pipe will be higher by preposition pond discharge pipe tube top absolute altitude at least 100mm；Before
The bottom in pond is set in slope setting of inclining, sludge pump installs the elevation of bottom at place for the minimum absolute altitude inside preposition pond, to guarantee to intake
The smooth collection of middle particulate matter, mud etc.；Filtrate area is detachable filtrate, and outside is general frame, the filtrate of inside installing
It is made of three-layer filter, from left to right respectively gravel layer, sand filter blanket and gravel layer.
Preferably, the compound reverse osmosis layer use by infiltration rate be 0.071-0.075m/d composite inorganic it is degradable
Material is made, and the infiltration rate of soil horizon is 0.500-0.55m/d, about the 7 of reverse osmosis layer times, to guarantee in the first water reserve
Water only maintained 1 day by the flow event of soil horizon, and the water in the second water reserve passes through the process of compound reverse osmosis layer reverse osmosis
It can maintain 7 days or so, to guarantee the normal operation of the system.
Preferably, be detained before described the plant planted in the soil horizon of unit be the good emergent aquactic plant of ability of inundation (such as:
Narrow leaf cattail etc.), the rear interior plant planted of the soil horizon for being detained unit is the good herbaceous plant (such as: toad's-mouth) of drought tolerance,
So that system has good adaptivity for the rainfall of varying strength, it ensure that system under different rainfall size cases
It can normal operation.
Preferably, the water reserve highest depth of water for being detained unit before described is detained the first water reserve of unit after being at least above
Highest depth of water 100mm, the setting of four remaining physical heights of area are mutually identical；The peak level of second water reserve is lower than stagnant
Stay the peak level 150mm or so in three, four areas；The overflow height of the second water reserve is flooded height than collector pipe and is higher by simultaneously
500mm or more, to guarantee the normal operation of system.
Preferably, being equipped with annular air pipeline, annular air pipeline and air pressurized equipment in second water reserve
Connection, the second water reserve are equipped with clear water pipeline.
Preferably, the annular air pipeline includes outer ring pipeline and inner ring pipeline, inner ring pipeline and outer ring pipeline are logical
The connection of Internal and external cycle connecting tube is crossed, several vent ports are uniformly provided on outer ring pipeline and inner ring pipeline, are set on inside and outside two circle
The opening direction for the vent ports set be straight down and it is inside and outside two circle on be evenly arranged, to guarantee the uniform of system gas distribution
Property.
In the present invention, when rainfall, rainwater passes through preposition pond discharge pipe by the filtrate area primary filtration in preposition pond later
Into the stagnant area of Rain Garden main body, wherein discharge pipe level after entering Rain Garden be divided into two branch pipes be connected into respectively it is stagnant
It stays an area and is detained 2nd area, rainwater is just passed through after preceding delay unit full water into preceding delay unit simultaneously by discharge pipe
Two groups of third overflow pipes are detained unit after entering simultaneously, when after be detained unit full water after, rainwater will be overflowed by two groups the
Flow tube enters the second water reserve of Rain Garden, and after the second water reserve stores completely, the rainwater having more just passes through the second overflow pipe row
Rain Garden system out is discharged into municipal sewage pipe network.
In the present invention, the water desilting equipment that changes is manually to open or close, and needs to combine local weather pre- before opening
Report estimated, if the time interval of two rainfalls in front and back within 14d, for prevent the second water reserve bottom sludge it is excessive sink
Product, changing water desilting equipment at least in period of drought should fully open primary (i.e. clear water pipeline and air pressurized equipment every month
It opens simultaneously)；If rain time interval is more than 14d, it is primary to fully open within every seven days or so this equipment, to the second water reserve into
Row changes water dredging, and the water to guarantee this part will not stop the long time and become stagnant water, protect simultaneously after terminating reverse osmosis
The anaerobic environment of rainwater stagnant area bottom is not damaged, and maintains the stability of stagnant area processing rainwater.
In the present invention, the top of Rain Garden is to watch region, including tourist pavement and safety barrier, wherein people's row
Road is arranged by Rain Garden body shape, and pavement is designed for two-way street, and width is 2m or more, can be according to the ground of setting cell
Reason situation specifically considers；Safety barrier height is 1.2m or so, to guarantee the personal safety of tourist.
The utility model has the advantages that the Rain Garden system for protecting bottom denitrification anaerobic area of the invention, the ladder of four stagnant areas
Degree water intake mode makes Rain Garden be suitable for the rainfall of varying strength, and increased second water reserve can increase Rain Garden entirety
Reservoir storage, improve the retention capacity of Rain Garden；Simultaneously as soil horizon and compound reverse osmosis layer porosity difference are larger,
So that the water in the second water reserve still can continue up reverse osmosis in the dry spell, and maintain 7 days or so reverse osmosis processes；It is several
The non-irrigated time is more than 14 days, to avoid the second remaining rainwater in water reserve bottom from becoming stagnant water since long-time is detained, the present invention
It is provided with again and changes water desilting equipment and periodically artificial running, to guarantee regularly updating for the water in the second water reserve, while
It can prevent bed mud from depositing and influence the stability that system is run；It, can be large-scale from the point of view of eco-friendly angle
In the construction of Urban Ecological Residential Communities, has the characteristics that good compatibility.
Detailed description of the invention
Fig. 1 is the facade structures main view in the preposition pond of the present invention.
Fig. 2 is the plan view in the preposition pond of the present invention.
Fig. 3 is the facade structures left view in the preposition pond of the present invention.
Fig. 4 is the schematic view of facade structure of Rain Garden main body of the present invention.
Fig. 5 is the top plan view of Rain Garden main body of the present invention.
Fig. 6 is the A-A section sectional view of Rain Garden main body of the present invention.
Fig. 7 is the B-B section sectional view of Rain Garden main body of the present invention.
Fig. 8 is facade elevation arrangement figure of the invention.
Fig. 9 is plan view of the invention.
Appended drawing reference: 1- water inlet pipe, the first overflow pipe of 2-, the preposition pond decanting zone 3-, 4- sludge pump, the preposition Chi Lvliaoqu of 5-
(5.1- gravel layer, 5.2- sand filter blanket), the preposition pond transition region of 6-, 7- pressure spoil disposal pipeline, the preposition pond discharge pipe of 8-, 9- second overflow
Flow tube, the second water reserve 10-, 11- safety barrier, 12- soil horizon, the compound reverse osmosis layer of 13-, 14- third overflow pipe, 15- the 4th
Overflow pipe, 16- annular air pipeline (outer ring 16.1- pipeline, 16.2- inner ring pipeline, 16.3- Internal and external cycle connecting tube, 16.4- row
Gas opening), 17- air pressurized equipment, 18- clear water pipeline, 19- collector pipe (19.1- collector pipe gully-hole), the pavement 20-,
The first water reserve 21-, the stagnant area 22- grit layer, the stagnant area 23- gravel layer, 24- rainwater stagnant area.
Specific embodiment
As shown in Figures 1 to 9, one kind of the invention can protect the Rain Garden system in bottom denitrification anaerobic area, including
Preposition pond, preposition pond include decanting zone 3, transition region 6, the decanting zone 3 with and municipal administration Storm Sewer Network be connected water inlet pipe 1 company
It connects, 3 bottom of decanting zone is equipped with sludge pump 4, and sludge pump 4 is connect with pressure spoil disposal pipeline 7, and decanting zone 3 passes through filtrate area 5 and transition
Area 6 connects, and transition region 6 is connect by preposition pond discharge pipe 8 with rainwater stagnant area, and the first storage is successively arranged in rainwater stagnant area
Pool 21, soil horizon 12, grit layer 22, gravel layer 23 and compound reverse osmosis layer 13 are equipped with collector pipe 19 in gravel layer 23, and rainwater is stagnant
Area is stayed to be externally provided with external pond body, external pond body is equipped with the second water reserve 10, and the first water reserve 21 is equipped with the 4th overflow pipe 15, rainwater
Intracorporal second water reserve 10 in external pond is entered by 15 overflow of the 4th overflow pipe, is equipped with the second overflow pipe 9 in external pond body,
The rainwater of overflow is drained into municipal sewage pipe network.
In the present invention, the external pond body is circle, rainwater stagnant area 24 include four delay units 24.1,24.2,
24.3,24.4, it is detained unit 24.3,24.4, each delay unit after unit 24.1,24.2 and two are detained before respectively two
For sector, each delay unit is followed successively by the first water reserve 21.1 or 21.2 or 21.3 or 21.4, soil horizon 12, husky from top to bottom
Gravel bed 22, gravel layer 23 and compound reverse osmosis layer 13 are equipped with collector pipe 19, preposition pond discharge pipe 8 and two in each gravel layer 23
It is detained the first water reserve connection of unit 24.1,24.2 before a, is detained unit 24.3,24.4 after two and passes through third overflow pipe 14
It is connected to preceding delay unit 24.1,24.2, the 4th overflow pipe 15 is detained on unit 24.3,24.4 after being located at.
In the present invention, the tube top absolute altitude of preposition pond discharge pipe 8 must not be higher than the tube bottom absolute altitude of preposition pond water inlet pipe 1, institute
Decanting zone 3 is stated equipped with the first overflow pipe 2, the tube bottom absolute altitude of the first overflow pipe 2 will be higher by preposition 8 tube top absolute altitude of pond discharge pipe at least
100mm；The bottom in preposition pond in incline slope setting, sludge pump install place elevation of bottom be preposition pond inside minimum absolute altitude, with
Guarantee the smooth collection of particulate matter, mud etc. in water inlet；Filtrate area 5 is detachable filtrate, and outside is general frame, inside dress
If filtrate be made of three-layer filter, respectively gravel layer 5.1, sand filter blanket 5.2 and gravel layer 5.1 from left to right.
In the present invention, the compound reverse osmosis layer 13 uses porosity very little (infiltration rate 0.071-0.075m/d)
Composite inorganic degradation material is made, and the porosity (infiltration rate 0.500-0.55m/d) of soil horizon 12 will be significantly greater than
The porosity of compound reverse osmosis layer 13.It is detained the very water that it is good that the plant planted in the soil horizon 12 of unit is ability of inundation before described to plant
Object (such as: narrow leaf cattail), the plant planted in the rear soil horizon 12 for being detained unit be the good herbaceous plant of drought tolerance (such as: gold
Water shield etc.), to guarantee that system can normal operation under different rainfall size cases.
In the present invention, the preceding first water reserve highest depth of water for being detained unit 24.1,24.2 is detained after being at least above
First water reserve highest depth of water 100mm of unit 24.3,24.4, the setting of four remaining physical heights of area are mutually identical；
The peak level of second water reserve 10 is detained the peak level 150mm or so of unit 24.3,24.4 after being lower than；Second water storage simultaneously
The overflow height in area 10 floods height than collector pipe 19 and is higher by 500mm or more, to guarantee the normal operation of system.
In the present invention, annular air pipeline 16, annular air pipeline 16 and air are equipped in second water reserve 10
Pressurized equipment 17 connects, and the second water reserve 10 is equipped with clear water pipeline 18.The annular air pipeline 16 includes outer ring pipeline
16.1 and inner ring pipeline 16.2, inner ring pipeline 16.2 is connected to outer ring pipeline 16.1 by Internal and external cycle connecting tube 16.3, in outer ring
Several vent ports 16.4, the vent ports being arranged on inside and outside two circle are uniformly provided on pipeline 16.1 and inner ring pipeline 16.2
16.4 opening direction be straight down and it is inside and outside two circle on be evenly arranged, to guarantee the uniformity of system gas distribution.
This system includes two different operating conditions, respectively operating condition and maintenance operating condition.
Under operating condition, the rainwash rainwater that municipal Storm Sewer Network is collected enters the sedimentation in preposition pond by water inlet pipe 1
Area 3 enters preposition pond transition region 6 after 5 primary filtration of preposition pond filtrate area, enters rainwater flower simultaneously by discharge pipe 8 later
The rainwater in garden is detained an area and rainwater is detained 2nd area.In small rainfall, rainwater, which can only store, to be detained an area and is being detained 2nd area；Heavy rain
When amount, rainwater, which can first be filled, to be detained an area and is detained 2nd area, is entered by two groups of 14 overflows of third overflow pipe be detained 3rd area later
Be detained 4th area, after all full waters of four rainwater stagnant areas, the rainwater having more can just pass through two group of the 4th overflow pipe 15 and enter
Second water reserve 10, if after 10 full water of the second water reserve, rainwater passes through the second overflow pipe 9 and is directly discharged into municipal wastewater pipe
Net.
Rainwater in first water reserve 21 under the effect of gravity, seeps and by the way that soil horizon 12 is slowly lower by 19 row of collector pipe
Rain Garden system out, this process duration are about 1 day；Rainwater in second water reserve 10 leads under the effect of water level height difference
Compound 13 reverse osmosis of reverse osmosis layer is crossed to stagnant area and by 19 discharge system of collector pipe, this process duration is 7 days or so.
It safeguards under operating condition, artificial open changes water desilting equipment, retracts 19 flooding area of collector pipe to 10 water level of the second water reserve
When height, air pressurized equipment 17 is opened, the remaining water in the second water reserve 10 is aerated, while bottom sediment is existed
It suspends again under the washing away of high pressure gas and be mixed with remaining water height, aeration time is about 10min, passes through water pipe later
Normal pressure clear water is injected on road 18 into the second water reserve 10, keeps the unlatching of air pressurized equipment 17 so that second in the injecting process
Water in water reserve 10 keeps height turbulent fluctuation state at any time, when water level rises to the overflow height of the 4th overflow pipe 9, continues to fill
Water about 20min later, is closed so that the deposit in the second water reserve 10 all passes through the quick discharge system of the 4th overflow pipe 9
It closes and changes water desilting equipment.So far, the water in the second water reserve 10 has changed free of contamination clear water into, under inside and outside height of water level difference,
Start another reverse osmosis process, to keep stagnant area bottom anaerobic zone to be in the state flooded and flowed at any time.In addition, preposition
Detachable filtrate area 5 in pond should integrally take out when safeguarding under operating condition, be rinsed or replace to filtrate；It is artificial simultaneously
Open sludge pump 4, the bed mud discharge system that will be deposited, to guarantee the normal operation in preposition pond.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. the Rain Garden system that one kind can protect bottom denitrification anaerobic area, it is characterised in that: including preposition pond, preposition Chi Bao
Containing decanting zone, transition region, the decanting zone with and the water inlet pipe that is connected of municipal Storm Sewer Network connect, decanting zone bottom is equipped with dirty
Dredge pump, sludge pump are connect with pressure spoil disposal pipeline, and decanting zone is connect by filtrate area with transition region, and transition region is arranged by preposition pond
Outlet pipe is connect with rainwater stagnant area, be successively arranged in rainwater stagnant area the first water reserve, soil horizon, grit layer, gravel layer and
Compound reverse osmosis layer is equipped with collector pipe in gravel layer, and rainwater stagnant area is externally provided with external pond body, and external pond body is equipped with the second water storage
Area, the first water reserve are equipped with the 4th overflow pipe, and rainwater is entered in external pond body by the 4th overflow pipe overflow, in external pond body
Equipped with the second overflow pipe, the rainwater of overflow is drained into municipal sewage pipe network, wherein the external pond body is circle, rainwater
Stagnant area includes four delay units, is detained unit after unit and two are detained before respectively two, each delay unit is fan
Shape, each delay unit are followed successively by the first water reserve, soil horizon, grit layer, gravel layer and compound reverse osmosis layer from top to bottom, each
Collector pipe is equipped in gravel layer, preposition pond discharge pipe connect with the first water reserve for being detained unit before two, is detained after two
Unit is connected to by third overflow pipe with preceding delay unit, and the 4th overflow pipe is detained on unit after being located at.
2. the Rain Garden system according to claim 1 for protecting bottom denitrification anaerobic area, it is characterised in that: described
The plant planted in the preceding soil horizon for being detained unit is the good emergent aquactic plant of ability of inundation, plantation in the rear soil horizon for being detained unit
Plant be the good herbaceous plant of drought tolerance.
3. the Rain Garden system according to claim 1 for protecting bottom denitrification anaerobic area, it is characterised in that: described
First water reserve highest depth of water 100mm of delay unit after the preceding first water reserve highest depth of water for being detained unit is at least above, four
The setting of a remaining physical height of area is mutually identical.
4. the Rain Garden system according to claim 1 for protecting bottom denitrification anaerobic area, it is characterised in that: described
Annular air pipeline is equipped in second water reserve, annular air pipeline is connect with air pressurized equipment, and the second water reserve is equipped with
Clear water pipeline.
5. the Rain Garden system according to claim 4 for protecting bottom denitrification anaerobic area, it is characterised in that: described
Annular air pipeline includes outer ring pipeline and inner ring pipeline, and inner ring pipeline is connected to outer ring pipeline by Internal and external cycle connecting tube,
Several vent ports are uniformly provided on outer ring pipeline and inner ring pipeline.
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| CN109250821B (en) * | 2018-11-19 | 2023-12-29 | 中国机械设备工程股份有限公司 | Hierarchical biofiltration retention system |
| CN109655600A (en) * | 2018-12-11 | 2019-04-19 | 内蒙古工业大学 | A kind of anaerophyte based on degradation nitrate nitrogen is detained first experimental provision |
| CN110438938B (en) * | 2019-08-13 | 2020-12-22 | 温州春桦秋时科技有限公司 | River bank structure for constructing sponge city |
| CN110550674A (en) * | 2019-08-27 | 2019-12-10 | 首创爱华(天津)市政环境工程有限公司 | Treatment process for garden type sewage plant |
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| US6277274B1 (en) * | 1999-04-16 | 2001-08-21 | Larry Steven Coffman | Method and apparatus for treating stormwater runoff |
| CN101713184A (en) * | 2009-11-05 | 2010-05-26 | 河海大学 | Channel seepage-guiding and non-return system |
| CN105735455A (en) * | 2016-05-04 | 2016-07-06 | 河海大学 | Pollutant-into-river complex ecology closure system |
| CN106830506A (en) * | 2017-01-24 | 2017-06-13 | 河海大学 | A kind of intensified denitrification and dephosphorization biology delaying basin for being applied to sponge urban construction |
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- 2017-06-27 CN CN201710499078.6A patent/CN107288198B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6277274B1 (en) * | 1999-04-16 | 2001-08-21 | Larry Steven Coffman | Method and apparatus for treating stormwater runoff |
| CN101713184A (en) * | 2009-11-05 | 2010-05-26 | 河海大学 | Channel seepage-guiding and non-return system |
| CN105735455A (en) * | 2016-05-04 | 2016-07-06 | 河海大学 | Pollutant-into-river complex ecology closure system |
| CN106830506A (en) * | 2017-01-24 | 2017-06-13 | 河海大学 | A kind of intensified denitrification and dephosphorization biology delaying basin for being applied to sponge urban construction |
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