CN102605853B - Facility for ecologically treating and recycling rainwater in central business district and method therefor - Google Patents
Facility for ecologically treating and recycling rainwater in central business district and method therefor Download PDFInfo
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- CN102605853B CN102605853B CN201210083565.1A CN201210083565A CN102605853B CN 102605853 B CN102605853 B CN 102605853B CN 201210083565 A CN201210083565 A CN 201210083565A CN 102605853 B CN102605853 B CN 102605853B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/60—Ecological corridors or buffer zones
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to a facility and a method for ecologically treating and recycling rainwater in a central business district, wherein an ecological corridor is connected with an ecological filter bed through a pipe network; a water outlet of the ecological filter bed is connected with a water reservoir; the rainwater flows into the ecological corridor; the ecological corridor regulates the water quality and the water quantity in one aspect, and pre-treats the rainwater in the other aspect to intercept and precipitate solid granules and suspended matters and reduce the content of contaminations in the rainwater; effluent from the ecological corridor flows into the ecological filter bed, so that organic matters and nitrogen phosphorous contaminations are removed by plants, microorganisms and matrixes, and then the effluent is collected by a water collection pipe to be discharged outwards; the effluent from the ecological filter bed flows into the water reservoir and is stored in the water reservoir; and the water in the water reservoir is lifted to a high place and a recycling point by a lifting pump. The ecological technology is utilized to effectively treat the rainwater, the water after meeting a reclaimed water recycling standard is recycled, and the recycling management of ''allocation, storage, application and appreciation'' of the rainwater is achieved.
Description
Technical field
The present invention relates to a kind of facility and method thereof for the processing of central business district rainwater ecological and reuse, belong to environment-friendly engineering and water-treatment technology field.
Background technology
Rainwater resource utilization is a kind of convenience, economy, effective water-saving method.When rainfall; rainwater is kept here as far as possible; make it change available water resource into, contribute to using water wisely and water conservation, control urban soil and water loss, keep the basic hydrologic cycle in city, reduce water pollution, reduce city ponding in rainy season, improve the effects such as urban ecology, environment.
Process of Urbanization Construction ground advances, and has increased the Permeable stratum area of urban pavement, and when early-stage rainwater is flowed through road, adulterated greasy dirt, heavy metal, hydrocarbon that running car, manure of livestock and poultry toilet bring, increase the weight of city precipitation runoff and pollute; When early-stage rainwater is flowed through open greenery patches, farmland, rainwater can mix and swims in airborne medicament particulate, and when rain drop erosion greenery patches, farmland, mixed because of the unordered remaining chemical fertilizer of agricultural production and agricultural chemicals, formed the too high surface flow of Nitrogen-and Phosphorus-containing compound concentration.After contaminated rainwater charge for remittance, a part flows into municipal sewage pipe network, increases the burden of urban drainage pipe network, Wastewater Treatment Plant and water environment, wastes a large amount of rainwater resources; A part is inflow stream lake, waterproof region along road surface, has increased the content of lake body weight metal ion, nitrogen phosphate mixture, and more a step has been aggravated lake body eutrophication process.
Though the many buildings of China have had perfect rain water collecting system, a little less than processing and reclaiming system relative thin.To rainwater, generally adopt physico-chemical process to process at present, by coagulation facility, sedimentation basin, filter plant and sterilizing equipment decontaminating apparatus etc., the rainwater harvesting is processed for utilization.For example adopt grid and screen cloth to remove suspension thicker in rainwater, throw coagulant and make colloidal solid and small suspension precipitation in water body, wherein general employing of coagulant is made into certain density liquid by dissolution of solid and adds.
Except physical chemistry method, biological method is also used to process rainwater.Be to utilize natural microorganism and animals and plants to process the rainwater after harvesting, but perfect treatment system and case history without comparison also now, its ecology, environment, Landscape benefit are not obvious.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, a kind of ecology, environmentally friendly and have processing and facility and the method thereof of reuse for central business district rainwater ecological of landscape effect is provided.
Object of the present invention is achieved through the following technical solutions:
For the facility of the processing of central business district rainwater ecological and reuse, feature is: comprise ecology corridor, ecological filter bed and reservoir, ecology corridor connects ecological filter bed, ecological filter bed delivery port and connects reservoir by pipe network, described ecology corridor is long and narrow trapezium structure, and its dual-side is laid ecological revetment, and bottom is laid layer of gravel, the bottom of described ecological filter bed body of wall is laid layer of gravel and lime compacting bed course successively, antiseepage film is established on lime compacting bed course upper berth, in antiseepage film, lay header, header is arranged to external radiation centered by filter bed, header is drawn by gutter, header connects ventilating pipe near filter bed body of wall one end, the top of ventilating pipe connects perforate vent cap, the inner filling substrate of ecological filter bed body of wall, matrix comprises ecological filler processing layer, diameter is the cobblestone transition zone of 8～16mm and the coarse gravel drainage blanket that diameter is 16～32mm, ecological filler processing layer is upper strata, transition zone is intermediate layer, drainage blanket is lower floor, the plantation of ecological filter bed surface has plant, ecological filter bed surface distributed water distribution supervisor, to external radiation, arrange centered by filter bed with the water distribution branch pipe that water distribution supervisor is connected.
Further, the above-mentioned facility for the processing of central business district rainwater ecological and reuse, wherein, described plant is short cattail and reed, iris or canna, the planting density of short cattail and reed is 36/m
2, the planting density of iris is 15 strains/m
2, the planting density of canna is 15 strains/m
2.
Further, the above-mentioned facility for the processing of central business district rainwater ecological and reuse, wherein, the wide 60～80cm trapezoidal suitable for reading of described ecology corridor, the wide 40～60cm of end opening, dark 50～90cm.
The present invention is for the method for the processing of central business district rainwater ecological and reuse, it is characterized in that: rainwater enters ecology corridor by municipal pipeline, road surface, irrigation canals and ditches, ecology corridor is carried out the adjusting of water quality and quantity on the one hand, on the other hand rainwater is carried out to pretreatment, hold back, precipitated solid particle and suspension, reduce the content of rain water pollutant; The water outlet of ecology corridor enters ecological filter bed, by collecting rear discharge by header after plant, microorganism and matrix removal organic matter and nitrogen and phosphorus pollutants; Ecological filter bed water outlet enters reservoir, and water outlet is stored in reservoir, by lift pump, the water extraction in reservoir is raised to eminence and reuse point.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progressive being mainly reflected in:
Adopt ecological technique to realize Rainwater Resources reuse, rainwater enters ecology corridor by modes such as municipal pipeline, road surface, irrigation canals and ditches and carries out pretreatment, and ecology corridor also has landscape function outward concurrently at performance preprocessing function; While ecology corridor is transported to rainwater ecological filter bed, carries out advanced treating in ecological filter bed, and water outlet enters reservoir, and the water in last reservoir carries out resource reuse; When ecology corridor water shortage, reservoir carries out moisturizing to ecology corridor.Use ecological technique effectively to process rainwater, after reaching water reuse standard, recycle, realize the resource management that rainwater " is adjusted, stores up, uses, appreciated ", there is the advantages such as processing cost is low, economic operating cost, landscape ecological is effective, overall structure is simple, be convenient to management, utilization scope is wide, the area lacking in water resource seem particularly in the urgent need to, be the method for optimizing that rainwater ecologicalization is processed.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1 is the facility technique plan view for the processing of central business district rainwater ecological and reuse;
Fig. 2 is ecology corridor generalized section;
Fig. 3 is ecological filter bed generalized section.
The specific embodiment
The invention provides a kind of facility and method thereof for the processing of central business district rainwater ecological and reuse, its ecological reclaiming system is that rainwater is carried out to advanced treating, finally makes effluent quality meet quality of reused water requirement.First rainwater enters ecology corridor by modes such as municipal pipeline, road surface, irrigation canals and ditches and carries out pretreatment, and rainwater is transported to ecological filter bed by ecology corridor, in ecological filter bed, carry out afterwards advanced treating, water outlet enters reservoir, and the water in last reservoir is for aspects such as view, irrigation, flushing, fire-fightings.
As shown in Figure 1, for central business district rainwater ecological, process and the facility of reuse, comprise ecology corridor 1, ecological filter bed 2 and reservoir 3, ecology corridor 1 connects ecological filter bed 2, ecological filter bed 2 delivery port by pipe network and connects reservoir 3.When ecology corridor water shortage, reservoir carries out moisturizing to ecology corridor.
As shown in Figure 2, ecology corridor 1 is long and narrow trapezium structure, the wide 60～80cm trapezoidal suitable for reading of ecology corridor, wide 40～the 60cm of end opening, dark 50～90cm, its dual-side is laid ecological revetment 4, bottom laying depth is about the layer of gravel 5 of 10cm, plants landscape plant 6 above.
As shown in Figure 3, ecological filter bed 2 body of wall 10 consists of the customization aluminum alloy materials of being convenient to assembling, peripheral by environment-friendly materials veneer, body of wall 10 is highly about 1.2m, the gradient at the bottom of slope is 5 ‰, the bottom of ecological filter bed body of wall 10 is laid layer of gravel and lime compacting bed course successively, on lime compacting bed course, lay 1mm PE composite earthwork cloth antiseepage film 11 and carry out antiseepage processing, in antiseepage film 11, lay header 12, header 12 is arranged to external radiation centered by filter bed, header 12 is drawn by gutter 17, header 12 connects ventilating pipe 14 near filter bed body of wall one end, the top of ventilating pipe 14 connects perforate vent cap, make the sensible wetland of oxygen bottom, by header annular cut hole, to filter bed diffusion inside, the gases such as the biogas that simultaneously regional area anaerobic reaction produces and hydrogen sulfide can the timely loss to the external world, the inner filling substrate of ecological filter bed body of wall, matrix matrix consists of different levels filtrate, comprise the coarse gravel drainage blanket 9 that cobblestone transition zone 8 that ecological filler processing layer 7, diameter are 8～16mm and diameter are 16～32mm, ecological filler processing layer 7 is upper strata, transition zone 8 is intermediate layer, and drainage blanket 9 is lower floor, and wherein processing layer filtrate meets the requirement of hydraulic parameters and graduation curve, can guarantee good hydraulics, and provide good growing environment for plant and microorganism, the plantation of ecological filter bed surface has dirt-removing power by force and the good plant 16 of landscape effect, and plant is short cattail and reed, iris or canna, and the planting density of short cattail and reed is 36/m
2, the planting density of iris is 15 strains/m
2, the planting density of canna is 15 strains/m
2, greatly expand the space of Constructed Wetland For Purifying rainwater, improve the ability of its purifying rainwater, there is good landscape effect simultaneously, ecological filter bed surface distributed water distribution supervisor 13, arranges to external radiation centered by filter bed with the water distribution branch pipe 15 that water distribution supervisor is connected.
During concrete application, rainwater enters ecology corridor 1 by municipal pipeline, road surface, irrigation canals and ditches, ecology corridor 1 is a long and narrow trapezoidal gallery, the concrete shape of gallery can be determined according to actual conditions, carry out on the one hand the adjusting of water quality and quantity, on the other hand rainwater is carried out to pretreatment, hold back, precipitated solid particle and suspension, reduce the content of rain water pollutant; It is ecological filter bed 2 that the water outlet of ecology corridor 1 enters, and by header collects rear discharge after removing organic matter and nitrogen and phosphorus pollutants by plant, microorganism and matrix; Ecological filter bed 2 water outlet enters reservoir 3, and water outlet is stored in reservoir 3, by lift pump, the water extraction in reservoir is raised to eminence and reuse point.Build up after operation, will start automatic water quality monitoring system, strengthen the water quality monitoring of ecological wetland processing center, guarantee the normal operation of ecological wetland processing center, and guarantee industry water standard safety.
In sum, adopt ecological technique to realize Rainwater Resources reuse, rainwater enters ecology corridor by modes such as municipal pipeline, road surface, irrigation canals and ditches and carries out pretreatment, and ecology corridor also has landscape function outward concurrently at performance preprocessing function; While ecology corridor is transported to rainwater ecological filter bed, carries out advanced treating in ecological filter bed, and water outlet enters reservoir, and the water in last reservoir carries out resource reuse; When ecology corridor water shortage, reservoir carries out moisturizing to ecology corridor.Use ecological technique effectively to process rainwater, after reaching water reuse standard, recycle, realize the resource management that rainwater " is adjusted, stores up, uses, appreciated ", there is the advantages such as processing cost is low, economic operating cost, landscape ecological is effective, overall structure is simple, be convenient to management, utilization scope is wide, the area lacking in water resource seem particularly in the urgent need to, be the method for optimizing that rainwater ecologicalization is processed.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. for the facility of the processing of central business district rainwater ecological and reuse, it is characterized in that: comprise ecology corridor, ecological filter bed and reservoir, ecology corridor connects ecological filter bed, ecological filter bed delivery port and connects reservoir by pipe network, described ecology corridor is long and narrow trapezium structure, and its dual-side is laid ecological revetment, and bottom is laid layer of gravel, the bottom of described ecological filter bed body of wall is laid layer of gravel and lime compacting bed course successively, antiseepage film is established on lime compacting bed course upper berth, in antiseepage film, lay header, header is arranged to external radiation centered by filter bed, header is drawn by gutter, header connects ventilating pipe near filter bed body of wall one end, the top of ventilating pipe connects perforate vent cap, the inner filling substrate of ecological filter bed body of wall, matrix comprises ecological filler processing layer, diameter is the cobblestone transition zone of 8～16mm and the coarse gravel drainage blanket that diameter is 16～32mm, ecological filler processing layer is upper strata, transition zone is intermediate layer, drainage blanket is lower floor, the plantation of ecological filter bed surface has plant, ecological filter bed surface distributed water distribution supervisor, to external radiation, arrange centered by filter bed with the water distribution branch pipe that water distribution supervisor is connected.
2. the facility for the processing of central business district rainwater ecological and reuse according to claim 1, is characterized in that: described plant is short cattail and reed, iris or canna, and the planting density of short cattail and reed is 36/m
2, the planting density of iris is 15 strains/m
2, the planting density of canna is 15 strains/m
2.
3. the facility for the processing of central business district rainwater ecological and reuse according to claim 1, is characterized in that: the wide 60～80cm trapezoidal suitable for reading of described ecology corridor, the wide 40～60cm of end opening, dark 50～90cm.
4. utilize facility described in claim 1 to realize that rainwater ecological is processed and the method for reuse, it is characterized in that: rainwater enters ecology corridor by municipal pipeline, road surface, irrigation canals and ditches, ecology corridor is carried out the adjusting of water quality and quantity on the one hand, on the other hand rainwater is carried out to pretreatment, hold back, precipitated solid particle and suspension, reduce the content of rain water pollutant; The water outlet of ecology corridor enters ecological filter bed, by collecting rear discharge by header after plant, microorganism and matrix removal organic matter and nitrogen and phosphorus pollutants; Ecological filter bed water outlet enters reservoir, and water outlet is stored in reservoir, by lift pump, the water extraction in reservoir is raised to eminence and reuse point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210083565.1A CN102605853B (en) | 2012-03-27 | 2012-03-27 | Facility for ecologically treating and recycling rainwater in central business district and method therefor |
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| CN201210083565.1A CN102605853B (en) | 2012-03-27 | 2012-03-27 | Facility for ecologically treating and recycling rainwater in central business district and method therefor |
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| CN102605853A CN102605853A (en) | 2012-07-25 |
| CN102605853B true CN102605853B (en) | 2014-04-02 |
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| CN103410215A (en) * | 2013-08-06 | 2013-11-27 | 嘉兴市规划设计研究院有限公司 | Method for separate system rainwater discharge outlet tail end regulation and storage and pollution interception and control |
| CN103603320B (en) * | 2013-11-11 | 2015-12-09 | 厦门理工学院 | A kind of LID type storm-collector and design and calculation method thereof |
| CN106193256A (en) * | 2016-08-31 | 2016-12-07 | 苏州德华生态环境科技股份有限公司 | A kind of rainwater-collecting specification processing system |
| CN106746340A (en) * | 2016-12-30 | 2017-05-31 | 上海宏波工程咨询管理有限公司 | For the ecology corridor processing system of urban rainwater pumping plant floss hole pollutant fluxes |
| CN109399857A (en) * | 2017-08-16 | 2019-03-01 | 京蓝北方园林（天津）有限公司 | Country sewage, the processing of rainwater ecological gallery and utilization system |
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| CN100395193C (en) * | 2005-09-06 | 2008-06-18 | 中国科学院生态环境研究中心 | System of purifying landscape water body and operational method thereof |
| US8287728B2 (en) * | 2009-02-10 | 2012-10-16 | Fountainhead L.L.C. | Elevated swale for treatment of contaminated stormwater |
| CN201524462U (en) * | 2009-06-30 | 2010-07-14 | 武汉胜发机电研究所 | City and town community rainwater treatment device |
| CN101734802B (en) * | 2009-12-29 | 2012-07-04 | 苏州德华生态环境科技有限公司 | Reinforced vertical flow filter bed |
| CN101982622A (en) * | 2010-10-21 | 2011-03-02 | 清华大学 | Quality-graded collecting and purifying process and system for rainfall runoff |
| CN202610028U (en) * | 2012-03-27 | 2012-12-19 | 苏州德华生态环境科技有限公司 | Facility for ecological treatment and recycle of rainwater in central business district |
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Address after: Jiuhua Road Industrial Park in Suzhou city of Jiangsu Province, No. 110 building 215027 room 402 Patentee after: Suzhou Edward ecological environment Polytron Technologies Inc Address before: Jiuhua Road Industrial Park in Suzhou city of Jiangsu Province, No. 110 215021 Patentee before: Suzhou Dehua Ecological Environment Technology Co., Ltd. |