CN108409027A - A kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process - Google Patents
A kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process Download PDFInfo
- Publication number
- CN108409027A CN108409027A CN201810052308.9A CN201810052308A CN108409027A CN 108409027 A CN108409027 A CN 108409027A CN 201810052308 A CN201810052308 A CN 201810052308A CN 108409027 A CN108409027 A CN 108409027A
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- layer
- mixes
- delaying basin
- denitrogenation dephosphorizing
- biological delaying
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Classifications
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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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Abstract
The present invention provides a kind of biological delaying basins for strengthening road Initial Runoff denitrogenation dephosphorizing process, it is equipped with soil cover successively from top to down, upper layer mixes packing layer, lower layer mixes packing layer, rubble filter layer and pebble support layer, it is low-permeability mixed fillers that the lower layer, which mixes packing layer, by river sand, aluminium sludge and wood fragments bits mix, it is high permeability mixed fillers that the upper layer, which mixes packing layer, the upper layer, which mixes, is equipped with more snorkels in packing layer, one end of snorkel stretches to upper layer and mixes in packing layer, the other end stretches out biological delaying basin top and air communication, it is connected to by pipeline between the more snorkels, the new bio delaying basin of the present invention can adequately and urban road, park, the greening in the regions such as living area and landscape construction are combined, realize the double effects of purification greening.
Description
Technical field
The present invention relates to field of environment protection, and in particular to a kind of biology for strengthening road Initial Runoff denitrogenation dephosphorizing process
Delaying basin.
Background technology
China is in the stage of High-speed Urbanization at present, and this high speed development brings huge to Urban Water Environment
Pressure and challenge, caused a series of environmental problem.City surface source pollution refers to rainwater and runoff under conditions of precipitation
Urban ground is washed away, pollutant is made to enter environmental problem caused by receiving water body.Since mankind's activity is strong in city, soil is impermeable
Water area ratio is high, therefore the rainfall runoff oncoming force is violent, and water is big, water quality inferiority.City surface source major pollutants be COD, SS, TP and
TN etc..These pollutants enter surface water body with rainfall, and especially content is higher in rainwater in the early stage.These pollutants are gone
Except reasonable efficient utilize of protection and water resource for urban water-body environment has a very important significance.Meanwhile in order to change
The ecological environment of kind urban water safety and water, China currently carries out sponge urban construction.Sponge city is new generation of city
Storm water man- agement concept refers to natural calamity that city is brought in adaptation environmental change and reply rainwater etc. with good
" elasticity ", also referred to as " water elasticity city ".International term is " storm-water system structure is developed in low influence ".It is inhaled when rainy
Water, water storage, infiltration, water purification by the water stored " release " and are used when needing.Building sponge city will have " cavernous body ".
City " cavernous body " had both included the water systems such as river, lake, pond, also matches including city as greenery patches, garden, permeable road surface and is arranged
It applies.Rainwater by being oozed under these " cavernous bodies ", it is stagnant store, purification, reuse, last remainder runoff arranges by pipe network, outside pumping plant,
So as to effectively improve the standard of sewerage system, the pressure of urban waterlogging is extenuated.Therefore, it is adapted to sponge urban construction
It is required that ensure river, lake, pond or the water quality of cistern, then also require to carry out retention removal to the area source pollutants in rainwater.
Urban green belts and Landscape Region form runoff to Urban Rain has cushioning effect, has retention to area source pollutants
With the effect of removal, protection city Ecology and water environment are played an important role.Currently, in urban green belts or cities and towns scape
It sees in the construction in area there is also having a single function, the unreasonable disadvantage of structure setting is neutralized typically without for area source pollutants
The cutting mechanisms of equal pollutants carry out rationally and targetedly structure design, and retention removal effect it is bad.
It includes the multiple pollutant including nitrogen compound that biology, which is detained facility to effectively remove rainfall runoff,.Facility into
Organic nitrogen and ammonia nitrogen in water, which are easily adsorbed or retained by medium in infitration process, to be removed.The organic nitrogen and ammonia nitrogen adsorbed
Dry spell is fallen between two catchments, nitrate nitrogen is converted into since ammonification and nitrification occur for the effect of oxygen.Nitrate nitrogen
Only under conditions of anoxic and carbon source abundance, by denitrification with N2Form be removed.Traditional biological is detained facility
In order to ensure the moisture content of facility and provide nutrition for plant growth, a certain amount of compost is added in the medium of packing layer,
Carbon source can be provided for denitrification.But traditional biology is detained facility in the rainfall intermittent phase, medium is in aerobic state, usual nothing
Method meets the required anoxia condition of denitrification.Since medium cannot effectively adsorb negatively charged nitrate, cause to give birth to
Object is detained nitrate concentration in facility water outlet and is frequently above influent concentration, and ammonia nitrogen and organic nitrogen are relatively high especially in water inlet
Occasion.To solve the above problems, published patent of invention file proposes to improve the position of water outlet, creating waterflooding area makes facility
Lower part occurs being conducive to denitrifying anaerobic environment, but this method makes the medium of flooding area lose water pondage capacity, reduces
The annual flow overall control rate of facility, it is also satisfied not to the utmost to nitrate nitrogen removal effect
Ideal method, which should be this method, arbitrarily to be carried out green with the requirement of different greenbelts and Landscape Region construction
Rational biology is arranged according to the requirement of the Biochemical processes of denitrogenation dephosphorizing and is detained pool structure, simultaneously for the selection for changing plant
The quick exclusion to water may be implemented without causing surface gathered water, what is more important to may be implemented to go the efficient of nitrogen phosphorus in water
It removes, avoids the eutrophication of water body.
Invention content
In response to the deficiencies in the existing technology, the present invention provides a kind of reinforcing road Initial Runoff denitrogenation dephosphorizing processes
Biological delaying basin.
The present invention achieves the above technical objects by the following technical means.
A kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process, is equipped with soil and covers successively from top to down
Cap rock, upper layer mix packing layer, lower layer mixes packing layer, rubble filter layer and pebble support layer, are set in the pebble support layer
There are more drainpipes, one end of the drainpipe to be located in pebble support layer, the other end of drainpipe stretches out biological delaying basin, uses
To be timely discharged or be delivered to next treatment facility by the rainwater of processing, the lower layer mixes packing layer and is mixed for low-permeability
Filler is mixed by river sand, aluminium sludge and wood fragments bits, and it is high permeability mixed fillers that the upper layer, which mixes packing layer, described
Upper layer mixes and is equipped with more snorkels in packing layer, and one end of snorkel stretches to upper layer and mixes in packing layer, and the other end stretches out
Biological delaying basin top and air communication are connected to by pipeline between the more snorkels, and snorkel is equipped with multiple outlets
The grain size in hole, upper layer mixed filler layer is big, and permeability is high, while snorkel is arranged, and upper layer mixed fillers can be made to be in aerobic
State, it is small that the lower layer mixes filler layered material grain size, in this way with the water distribution phase with fall replacing for dry spell, gradually form from top to down
The state of aerobic-anoxic, microorganism gradually form stable group so that nitrification and denitrification process can be carried out smoothly.
Preferably, the volume ratio of the river sand in lower layer's mixed fillers, aluminium sludge and wood fragments bits is 75~85:10~
15:5~10, it is best to the removal effect of pollutant.
Preferably, the upper layer mixes packing layer and is mixed by river sand, slag and quartz sand.
Preferably, the volume ratio of the river sand in the upper layer mixing packing layer, slag and quartz sand is 75~85:5~10:
10~15, while ensureing lower cost, realization efficiently removes pollutant.
Preferably, 10~20mm of the pebble support layer grain size is highly 200mm.
Preferably, 8~10mm of grain size of the rubble filter layer medium stone, thickness is 150~20mm, in filter packing layer
The filtrate fine crushing being lost in, prevents filler fine crushing to be lost in water body, results in blockage to lower part drainage system.
Preferably, the planting plants in the soil cover, the plant are flower, grass or one kind in shrub or more
Kind.The floristics should adapt to local weather, have the function that beautify the environment while water purification.
Preferably, the aluminium sludge in lower layer's mixed fillers is the tail mud of waterworks, because phosphorus contains in sewage plant tail mud
Measure excessively high, there are elution phenomenons, should not select sewage plant tail mud.
Preferably, the drainpipe, which is located at one end port in pebble support layer, is equipped with strainer, reduces draining blockage
Risk.
Preferably, further include overflow pipe, one end of the overflow pipe is connected to the drainpipe in pebble support layer, the other end
It stretches in the aquifer above the soil cover, and maintains an equal level with aquifer highest point.
Beneficial effects of the present invention：
1. the present invention using upper layer low-permeability material adds snorkel in such a way that, ensure Pluvial runoff can it is quick under
It oozes, reduces the risk of urban waterlogging.Realize that during falling dry spell and water distribution, system upper layer can keep preferable aerobic ring simultaneously
Border is conducive to the progress of nitration reaction, to achieve the purpose that remove ammonia nitrogen.Low-permeability material is arranged in lower layer, while adding wood
Bits are used as organic matter, have built the required condition of denitrification process, realize the reduction to nitrate nitrogen.
2. lower layer's filler aluminium sludge of the present invention, as modifying agent, which has flourishing pore structure, and have compared with
High specific surface area, so it is relatively large for the adsorbance of phosphorus, secondary aluminium sludge is mainly unformed non-crystal structure,
Containing the metal ions such as a large amount of aluminium, iron, calcium or oxide, these ion pair phosphate radicals have very strong absorption property, can be with phosphorus
Complex reaction occurs for acid group, stable metal ion phosphate complex is generated, to achieve the purpose that dephosphorization.
3. a kind of solid waste of the aluminium sludge as water factory, for a long time sanitary landfills are its main processing ways, and
The invention aluminium sludge realizes the recycling of solid waste as additive.
4. the present invention efficiently retains the pollutants such as road Initial Runoff COD, SS, efficient denitrogenation dephosphorizing is realized
Process.It can adequately be combined, realize green with the greening in the regions such as urban road, park, living area and landscape construction simultaneously
Change the double effects with rainwater purification.
Description of the drawings
Fig. 1 is a kind of structural representation of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process of the present invention
Figure.
In figure：1. drainpipe；2. snorkel；3. aquifer；4. soil cover；5. upper layer mixes packing layer；6. lower layer
Mix 7. rubble filter layer of packing layer；8. pebble support layer；9. overflow pipe
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As shown in Figure 1, a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process of the present invention, from
Soil cover 4 is equipped under above successively, upper layer mixes packing layer 5, lower layer mixes packing layer 6, rubble filter layer 7 and cobble
Supporting layer 8,10~20mm of grain size of cobble, is highly 200mm in the pebble support layer 8, and two are equipped in pebble support layer 8
Biological delaying basin is stretched out in the end of drainpipe 1, the drainpipe 1, the rainwater of processing to be timely discharged or be delivered to down
One treatment facility, drainpipe 1, which is located at the port in pebble support layer 8, is equipped with strainer, reduces the risk that drainpipe 1 blocks.Institute
It is low-permeability mixed fillers to state lower layer and mix packing layer 6, is 75~85 by volume by river sand, aluminium sludge and wood fragments bits:10
~15:5~10 mix, and it is high permeability mixed fillers that the upper layer, which mixes packing layer 5, by river sand, slag and quartz sand
It is 75~85 by volume:5~10:10~15 mix, and the upper layer, which mixes, is equipped with more snorkels 2 in packing layer 5, lead to
One end of tracheae 2 stretches to upper layer and mixes in packing layer 5, and the other end stretches out biological delaying basin top and air communication, more institutes
It states by connection between snorkel (2), the grain size of upper layer mixed filler layer 5 is big, and permeability is high, while snorkel is arranged, can be with
So that upper layer mixed filler layer 5 is in aerobic state, the grain size that the lower layer mixes packing layer 6 is small, in this way with the water distribution phase with fall
The alternating of dry spell, gradually forms the state of aerobic-anoxic from top to down, and microorganism gradually forms stable group so that nitrification with
Denitrification process can be carried out smoothly.8~10mm of grain size of 7 medium stone of rubble filter layer, thickness are 150~20mm, filtering
The filtrate fine crushing being lost in packing layer, prevents filler fine crushing to be lost in water body, results in blockage to lower part drainage system.
Embodiment one
The soil for excavating certain depth is laid with one layer of pebble support layer 8 in bottom, and it is 200mm, cobble grain size to be laid with height
10~20mm, horizontal Tile is equipped with the drainpipe 1 of two a diameter of 100mm in layer pebble support layer 8, and drainpipe 1 will be will locate
The rainwater of reason is timely discharged or is delivered to next treatment facility, then re-lays one layer of rubble filter layer 7, filling thickness
150mm, ballast grain sizes 8-10mm；River sand, aluminium sludge and wood fragments are filled on rubble filter layer 7 considers the low-permeability mixed to be worth doing
Filler is mixed, is highly 500mm.River sand, aluminium sludge, wood fragments bits are 85 according to volume ratio:10:5 proportional arrangement.
It is mixed in lower layer and is being laid with one layer of big grain size mixed by river sand, slag and quartz sand on packing layer 6, it is hypertonic
Saturating rate mixed fillers, are highly the upper layer mixed filler layer 5 of 300mm.River sand, slag and quartz sand are 85 according to volume ratio:5:
10 proportional arrangement, and multiple snorkels 2 are set in the layer, snorkel 2 a diameter of 100mm, aperture 5mm, trepanning distance
100mm, to ensure that permeability, the rate of oxygen etc. of entire upper layer mixing filler can be restored falling in dry spell.
The soil cover that thickness is 150mm is re-layed on the mixed filler layer of upper layer, in layer plantation such as iris, net
Reach the function of beautifying the environment while water.
Embodiment two
The soil for excavating certain depth is laid with one layer of pebble support layer 8 in bottom, and it is 200mm, cobble grain size to be laid with height
10-20mm, horizontal Tile is equipped with the drainpipe 1 of two a diameter of 100mm in layer pebble support layer 8, and drainpipe 1 will be will handle
Rainwater be timely discharged or be delivered to next treatment facility, then re-lay one layer of rubble filter layer 7, filling thickness 150mm,
Ballast grain sizes 8-10mm；
The low-permeability that river sand, aluminium sludge and wood fragments bits mix is filled on rubble filter layer 7 mixes filler, height
For 600mm.River sand, aluminium sludge, wood fragments bits are 75 according to volume ratio:15:10 proportional arrangement.
It is mixed in lower layer and is being laid with one layer of big grain size mixed by river sand, slag and quartz sand on packing layer, it is hypertonic
Saturating rate mixed fillers, are highly 400mm.River sand, slag and quartz sand are 75 according to volume ratio:10:15 proportional arrangement, and
Snorkel 2, snorkel 2 a diameter of 100mm, aperture 5mm, trepanning distance 100mm, to ensure that entire upper layer is mixed is arranged in the layer
It can be restored falling in dry spell with permeability, the rate of oxygen of filler etc..
The soil cover that thickness is 150mm is re-layed on the mixed filler layer of upper layer, and resistance to such as iris is planted in the layer,
Reach the function of beautifying the environment while water purification.
To embodiment one and implement two progress Nitrogen/Phosphorus Removal detections, result is：It can effectively remove in Initial Runoff
The total phosphorus of 90% or more ammonia nitrogen and TSS and 85% or more reaches 80% or more to COD retention rates, while to nitrate nitrogen
Removal rate reaches 60% or more, and removal effect is stablized.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process, it is characterised in that：It spreads successively from top to down
Packing layer (5) is mixed equipped with soil cover (4), upper layer, lower layer mixes packing layer (6), rubble filter layer (7) and cobble support
Layer (8) is equipped with more drainpipes (1) in the pebble support layer (8), and one end of the drainpipe (1) is located at pebble support layer
(8) in, the other end of drainpipe (1) stretches out biological delaying basin, and it is that low-permeability mixing is filled out that the lower layer, which mixes packing layer (6),
Material is mixed by river sand, aluminium sludge and wood fragments bits, and it is high permeability mixed fillers that the upper layer, which mixes packing layer (5), described
Upper layer mixes and is equipped with more snorkels (2) in packing layer (5), and one end of the snorkel (2) stretches to upper layer and mixes packing layer
(5) in, the other end and air communication are connected to by pipeline between the more snorkels (2), and the upper layer mixes packing layer
(5) aerobic zone is constituted, the lower layer mixes packing layer (6) and constitutes anoxic zone.
2. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：The volume ratio of river sand, aluminium sludge and wood fragments bits in lower layer's mixed fillers (6) is 75~85:10~15:5~10.
3. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：The upper layer mixes packing layer (5) and is mixed by river sand, slag and quartz sand.
4. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 3, feature
It is：The volume ratio of river sand, slag and quartz sand in the upper layer mixing packing layer (5) is 75~85:5~10:10~15.
5. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：10~20mm of grain size of cobble, is highly 200mm in the pebble support layer (8).
6. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：8~10mm of grain size of rubble filter layer (7) medium stone, thickness are 150~20mm.
7. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：The planting plants in the soil cover (4), the plant are one or more in flower, grass or shrub.
8. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：Aluminium sludge in lower layer's mixed fillers (6) is the tail mud of waterworks.
9. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：The drainpipe (1), which is located at one end port in pebble support layer (8), is equipped with strainer.
10. a kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process according to claim 1, feature
It is：Further include overflow pipe (9), one end of the overflow pipe (9) is connected to the drainpipe (1) in pebble support layer (8), another
End stretches in the aquifer (3) above the soil cover (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052308.9A CN108409027A (en) | 2018-01-19 | 2018-01-19 | A kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052308.9A CN108409027A (en) | 2018-01-19 | 2018-01-19 | A kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process |
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| CN108409027A true CN108409027A (en) | 2018-08-17 |
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ID=63126134
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| CN201810052308.9A Pending CN108409027A (en) | 2018-01-19 | 2018-01-19 | A kind of biological delaying basin for strengthening road Initial Runoff denitrogenation dephosphorizing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809632A (en) * | 2019-02-01 | 2019-05-28 | 江苏大学 | A kind of biological delaying basin improving denitrogenation dephosphorizing ability |
| CN113620430A (en) * | 2021-08-06 | 2021-11-09 | 江苏龙腾工程设计股份有限公司 | Intelligent aeration type floating material module biological retention tank |
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| CN204529458U (en) * | 2014-11-21 | 2015-08-05 | 河南省电力勘测设计院 | For the treatment of the artificial swamp of city rainfall runoff |
| CN104876335A (en) * | 2015-06-01 | 2015-09-02 | 北京建筑大学 | Two-phase bioretention pond with synchronous phosphorous and nitrogen removal function and construction method thereof |
| CN107032500A (en) * | 2017-04-27 | 2017-08-11 | 四川大学 | A kind of biological delay pool structure with denitrogenation dephosphorizing function and preparation method thereof |
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- 2018-01-19 CN CN201810052308.9A patent/CN108409027A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202610031U (en) * | 2012-03-28 | 2012-12-19 | 杜建强 | Vertical flow ecological filter bed system |
| CN204529458U (en) * | 2014-11-21 | 2015-08-05 | 河南省电力勘测设计院 | For the treatment of the artificial swamp of city rainfall runoff |
| CN104876335A (en) * | 2015-06-01 | 2015-09-02 | 北京建筑大学 | Two-phase bioretention pond with synchronous phosphorous and nitrogen removal function and construction method thereof |
| CN107032500A (en) * | 2017-04-27 | 2017-08-11 | 四川大学 | A kind of biological delay pool structure with denitrogenation dephosphorizing function and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109809632A (en) * | 2019-02-01 | 2019-05-28 | 江苏大学 | A kind of biological delaying basin improving denitrogenation dephosphorizing ability |
| CN113620430A (en) * | 2021-08-06 | 2021-11-09 | 江苏龙腾工程设计股份有限公司 | Intelligent aeration type floating material module biological retention tank |
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Application publication date: 20180817 |