CN105461075B - A kind of urban runoff pollution of area source advanced treating and reuse technology - Google Patents

A kind of urban runoff pollution of area source advanced treating and reuse technology Download PDF

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Publication number
CN105461075B
CN105461075B CN201610002051.7A CN201610002051A CN105461075B CN 105461075 B CN105461075 B CN 105461075B CN 201610002051 A CN201610002051 A CN 201610002051A CN 105461075 B CN105461075 B CN 105461075B
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China
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layer
urban
runoff
city
wetland
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CN105461075A (en
Inventor
彭剑峰
颜秉斐
宋永会
姜诗慧
李�浩
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Chinese Research Academy of Environmental Sciences
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Chinese Research Academy of Environmental Sciences
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The present invention relates to a kind of urban runoff pollution of area source advanced treating and reuse technology, technique includes the collection system, processing system and storage three parts of recovery system of urban runoff;Urban runoff collection system includes that the roadside infiltration vegetational zone and osmosis type urban green space of simultaneously preliminary purification are collected to city surface source;Processing system includes the ecological gravel bed and wetland of the pollutants such as heavy metal, nitrogen phosphorus in further removal city surface source;Storage system includes the high-quality water self-cleaning landscape pool, it can be achieved that urban runoff deep purifying and having landscape effect, and for urban afforestation, pour and spill and the supplement of underground water etc. provides high-quality recycled water.The present invention is directed to urban runoff pollution of area source, by the Optimal improvements to each unit, provides one kind and efficiently removes each pollutant in city surface source runoff, and the technique for producing reuse high-quality recycled water.

Description

A kind of urban runoff pollution of area source advanced treating and reuse technology
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of urban runoff pollution of area source advanced treating and reuse Technique.
Background technique
Pollution of area source has become one of the important sources of domestic and international water environment pollution.With China's urban industry waste water, life Sewage discharge living has obtained effective improvement, is main pollution with town road runoff, livestock and poultry cultivation waste and residents in rural community The pollution of area source in source is gradually obtained attention.Since pollution of area source has source dispersion, generation position not easy to identify, accidentally strong And impact load is big, thus traditional wastewater centralized processing technology is difficult to use in Ides On Prevention And Control of Regional Pollution.Existing pollution of area source processing Technique focus primarily upon using pollution barrier tape reduce in runoff it is entrained come pollutant, for example, by using greenery patches buffer strip Filtering sedimentation silt, went to denitrogenate the nutriments such as phosphorus and various Atmospheric particulates etc. using the effects of plant absorption.This kind of technology Processing means are single, treatment effeciency is relatively low thus limited to each pollutant control effect.Chinese patent 201210210495.1 is public It has opened " based on point-line-face stereoscopic configurations non-point source pollution control technique ", which can adapt to Rural Plane Source Pollution Unstability, and can adaptation to local conditions, but take up a large area, system complex, be not suitable for handling city surface source pollution.China Patent 201410743613.4 discloses " a kind of system and method for water purifying pollution of area source ", although the technique opposite source is dirty Dye is administered each unit technique and is optimized, but primary and advanced treating only relies on physical cleaning, and method is single, is intake The influence of amount is difficult to ensure enough hydraulic detention times, cannot achieve comprehensive water environment treatment.
Constructed in this technology a kind of technique it is brief, it is applied widely, be easy to urban construction, be suitable for merged with surrounding landscape Urban runoff controlling area-source pollution system.The system can not only handle city surface source pollution, but also can construct integrated city scape See band;Carried out effectively in buffering suface source impact load and to pollution, while retention, can also opposite source sewage carry out treatment in situ And deep purifying, reliable outlet is provided for water circulation and fresh-water-saving resource.
Summary of the invention
The present invention provides a kind of small investment, is easily managed, is easy to operate, is widely applicable, both can to city surface source pollution into Row decentralized processing can also carry out concentration advanced treating to certain area face source sewage, and carry out secondary recovery to sewage after processing The technique and combined system utilized.
To achieve the above object, The technical solution adopted by the invention is as follows:
The present invention is a kind of urban runoff pollution of area source advanced treating and reuse technology, technique include the collection of urban runoff System, processing system and storage three parts of recovery system;Urban runoff collection system includes roadside infiltration vegetational zone and infiltration Type urban green space;Processing system includes ecological gravel bed and wetland;Storing recovery system includes the high-quality water self-cleaning landscape pool;? When system is run, sewage passes sequentially through roadside infiltration vegetational zone, osmosis type urban green space and is collected to city surface source and tentatively Purification;Ecological gravel bed and wetland further remove the pollutants such as heavy metal in city surface source, nitrogen phosphorus;High-quality water self-cleaning landscape The pool realizes to the deep purifying of urban runoff and has landscape effect, can for urban afforestation, pour and spill and the supplement of underground water etc. High-quality recycled water is provided.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: collection system, processing System and storage three systems of recycling arrange from high to low along elevation, and water flow is in level stream and combined-flow form automatic flowing.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: roadside is seeped water plant Band and osmosis type urban green space include upper layer and lower layer, i.e., upper layer vegetable layer, lower layer's gravel permeable layer, urban runoff seep from top to bottom Thoroughly;Roadside infiltration vegetational zone and osmosis type urban green space are lower than 2~10cm of road.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: roadside is seeped water plant Band and the bottom rammed earth of osmosis type urban green space, prevent effluent seepage;Lower layer's gravel permeable layer fills 10~30cm thickness, grain Zeolite, gravel or the functional stuffing of 4~30mm of diameter Φ;Lower layer's gravel permeable layer keeps by 2 along cloth water channel side to gravel bed~ 5.0 ‰ gradient makes urban runoff automatically flow into ecological gravel bed by topography from high to low, reduces the use of pipeline, and In this, as the matrix of biomembrane and plant growth;Upper layer vegetable layer covers the planting soil of 5~20cm thickness, and in soil horizon kind Plant the good and adaptable landscape crop of well developed root system, anti-pollution characteristic, plant can remove particulate matter in urban runoff, nitrogen and Phosphorus.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: ecological gravel bed is logical The mode for crossing level stream or combined-flow is connected in series with wetland, the high-quality water self-cleaning landscape pool;Ecological gravel bed and wetland waterpower are stopped Stay time ratio control 1: 2~5;Wetland can take surface low or undercurrent, realize the depth to the ammonia nitrogen of sewage, total nitrogen, total phosphorus Processing.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: ecological gravel bed packet Include upper layer and lower layer, i.e. upper layer chiltern filtering layer, lower layer's gravel layer, bottom plate rammed earth;Wherein lower layer's gravel bed 10~30cm of thickness, Fill the functional stuffing of 8~25mm of Φ;Upper layer chiltern filtering layer 5~20cm of thickness fills 3~15mm of Φ functional stuffing, plants landscape Plant, shrub or emergent aquactic plant;Entire gravel bed keeps 2~5.0 ‰ gradient, guarantee sewage self-flowing into subsequent processing units, Pipeline is reduced to use.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: wetland is improvement table Stream or combined-flow wetland.Combined-flow wetland successively distinguishes the function of 3~5mm of ceramic grain filter and Φ of 15~25mm of Φ from the bottom up Filler, and wetland plant is planted according to certain density;Runoff is purified by plant, matrix and microorganism collective effect.
A kind of above-mentioned urban runoff pollution of area source advanced treating and reuse technology, it is characterised in that: high-quality water self-cleaning The landscape pool 0.5~4m of the depth of water, hydraulic detention time are greater than 1.0d, plant emergent aquactic plant and floating plant, pool bottom in phytal zone It is laid with sandy soil protective layer and coarse sand filtering layer;Pool outlet setting self-draining arrangement, can discharge water according to the reuse demand of water to attached Nearly river, park green land or direct recharge of groundwater.
Compared with the prior art, the present invention has the following advantages:
1, the present invention by roadside seep water vegetational zone and osmosis type urban green space, ecological gravel bed and wetland, high-quality water from The system gradient series connection of three, the net landscape pool has the advantages that structure is simple, investment is low, easily builds, easily run, is easy to maintain.
2, the present invention can be achieved to realize city surface source to the scene of city surface source runoff, purified in situ and advanced treating The in-situ treatment of pollution and direct recycling.
3, the existing greenery patches of technique and city and urban rivers and lakes construction that the present invention is researched and developed are tightly combined, existing urban green space And river and lake only can construct this system through simple transformation.
4, the present invention by urban green space, ecological gravel bed, wetland and the high-quality water self-cleaning landscape pool Optimal improvements, Such as technique unit configuration, aeration intensity, depth of water etc. are transformed, it can be achieved that heavy metal in urban runoff, TN, TP, having Machine object etc. effectively removes.
5, the present invention is laid flexibly, and occupied area is moderate, is conducive in urban construction, and can be directly used for landscape belt construction.
Detailed description of the invention
Attached drawing is the structural schematic diagram of a kind of urban runoff pollution of area source advanced treating of the present invention and reuse technology.
Label declaration in attached drawing is as follows: the roadside 1- infiltration vegetational zone, 2- permeability urban green space, 3- ecological gravel bed, 4- wetland, the 5- high-quality water self-cleaning landscape pool, 7- motor-driven valve, 6- fluid level controller.
Specific embodiment
The present invention is a kind of urban runoff pollution of area source advanced treating and reuse technology.Specific embodiment is as follows: road Diameter flows through road ponding canal or directly gravity flow enters roadside infiltration vegetational zone 1 and osmosis type urban green space 2.Path flows through upper layer Vegetable layer, into lower layer's gravel permeable layer, big suspended particulate substance is by root system of plant and soil cut-off filter in runoff;Part TN, TP It is absorbed with heavy metal by root system of plant.After the collection of lower layer's gravel permeable layer, city surface source runoff enters ecological gravel bed 3, warp Cross certain hydraulic detention time, upper layer chiltern filtering layer, the lower layer's gravel layer of ecological gravel bed further filter urban runoff, After adsorbing and passing through biological effect denitrogenation dephosphorizing, processing water outlet flows into wet land system 4 certainly.It absorbed, nitrified by root system of plant, is anti- Nitrification and biological phosphate-eliminating effect and facilitation of the functional stuffing to nitration denitrification, the reinforcing to ammonia nitrogen are adsorbed, to phosphoric acid The crystallization of salt promotes, and accelerates to the degradation of organic matter, fixed to the chemistry of heavy metal, and city diameter is realized in the disinfection to pathogen Flow effective control of pollution.Water outlet is through overflow weir or is directly entered the high-quality water self-cleaning landscape pool 5, passes through bacterium algae and aquatic plant The collective effect of object realizes the advanced treating to sewage, and has preferable landscape effect.According to water demands such as urban afforestation, Controlling fluid level controller 7 by motor-driven valve 6, water adds to the facilities such as Urban Parks, greenbelt by treated, finally realizes city The comprehensive processing of city's runoff and the process of disposition.
Embodiment one:
Utilize aforesaid way purifying city runoff sewage.The size of system are as follows: (1) urban green space: length × width × height= 200m × 40m × 15~30cm, (2) ecological gravel bed: length × width × height=200m × 50m × 20~30cm (3) wetland: long × Width × height=200m × 80m × 30~80cm, (4) high-quality water self-cleaning landscape pool: length × width × height=200cm × 300cm × 120~300cm.
It is 20~100mg/L in inlet COD concentration, TP concentration is 0.3~1.2mg/L, and TN concentration is 1.9~6.8mg/L, Ammonia nitrogen concentration is 1.2~5.8mg/L, and temperature is 26.3~28.7 DEG C, hydraulic loading 0.21m3/m2Under conditions of/d, face source system System is respectively 65.33%, 54.68%, 43.99%, 38.05% to the average removal rate of COD, TP, TN and ammonia nitrogen.
Embodiment two:
Utilize aforesaid way purifying city runoff sewage.The size of system are as follows: (1) urban green space: length × width × height= 300m × 50m × 25~47cm, (2) ecological gravel bed: length × width × height=300m × 70m × 30~60cm (3) wetland: long × Width × height=300m × 90m × 40~90cm, (4) high-quality water self-cleaning landscape pool: length × width × height=400cm × 300cm × 150~400cm.
It is 100~300mg/L in inlet COD concentration, TP concentration is 1.6~3.4mg/L, and TN concentration is 3.3~23.2mg/ L, ammonia nitrogen concentration are 0.9~22.7mg/L, and temperature is 23.5~25.6 DEG C, hydraulic loading 0.12m3/m2Under conditions of/d, face Source system is respectively 89.79%, 49.96%, 70.02%, 49.05% to the average removal rate of COD, TP, TN and ammonia nitrogen.

Claims (5)

1. a kind of urban runoff pollution of area source advanced treating and reuse technology, technique includes the collection system of urban runoff, processing System and storage three parts of recovery system;Urban runoff collection system includes that roadside infiltration vegetational zone and osmosis type city are green Ground;Processing system includes ecological gravel bed and wetland;Storing recovery system includes the high-quality water self-cleaning landscape pool;It is run in system When, sewage pass sequentially through roadside infiltration vegetational zone, osmosis type urban green space is collected to city surface source and preliminary purification;Ecology Gravel bed and wetland further remove heavy metal in city surface source, nitrogen and phosphorus pollutants;It realizes to city on the high-quality water self-cleaning landscape pool The deep purifying of city's runoff simultaneously have landscape effect, for urban afforestation, pour spill and the supplement of underground water provide high-quality regenerate Water;
Roadside infiltration vegetational zone and osmosis type urban green space include upper layer and lower layer, i.e. upper layer vegetable layer, lower layer's gravel permeable layer, city City's runoff permeates from top to bottom;Roadside infiltration vegetational zone and osmosis type urban green space are lower than 2~10cm of road;
Roadside infiltration vegetational zone and the bottom rammed earth of osmosis type urban green space, prevent effluent seepage;Lower layer's gravel permeable layer The zeolite or gravel of 10~30cm thickness partial size Φ, 4~30mm are filled, lower layer's gravel permeable layer is kept along cloth water channel side to gravel bed By 2~5.0 ‰ gradient, urban runoff is made to automatically flow into ecological gravel bed by topography from high to low, reduces making for pipeline With, and in this, as the matrix of biomembrane and plant growth;Upper layer vegetable layer covers the planting soil of 5~20cm thickness, and in soil Earth layer plants the good and adaptable landscape crop of well developed root system, anti-pollution characteristic, and plant removes particulate matter, nitrogen in urban runoff And phosphorus;
Ecological gravel bed includes upper layer and lower layer, i.e. upper layer chiltern filtering layer, lower layer's gravel layer, bottom plate rammed earth;Wherein lower layer Gravel bed 10~30cm of thickness fills the functional stuffing of 8~12mm of Φ;Upper layer chiltern filtering layer 5~20cm of thickness fills 3~15mm of Φ Functional stuffing, plantation landscape plant, shrub or emergent aquactic plant;Entire gravel bed keeps 2~5.0 ‰ gradient, guarantees sewage certainly Subsequent processing units are flowed into, pipeline is reduced and uses.
2. a kind of urban runoff pollution of area source advanced treating according to claim 1 and reuse technology, it is characterised in that: receive Collecting system, processing system and storage three systems of recycling arrange from high to low along elevation, and water flow is in level stream and combined-flow form Automatic flowing.
3. a kind of urban runoff pollution of area source advanced treating according to claim 1 or 2 and reuse technology, feature exist In: ecological gravel bed is connected in series by way of level stream or combined-flow with wetland, the high-quality water self-cleaning landscape pool;Ecological gravel Bed and wetland hydraulic detention time are than controlling 1: (2~5);Wetland takes surface low or undercurrent, realizes the ammonia nitrogen to sewage, total The advanced treating of nitrogen, total phosphorus.
4. a kind of urban runoff pollution of area source advanced treating according to claim 1 and reuse technology, it is characterised in that: wet Ground is improvement surface low or combined-flow wetland;The rammed earth of wetland bottom prevents from leaking;Combined-flow wetland successively divides from the bottom up The functional stuffing of 3~5mm of ceramic grain filter and Φ of 15~25mm of other Φ, and wetland plant is planted according to certain density;Pass through plant Object, matrix and microorganism collective effect purify runoff.
5. a kind of urban runoff pollution of area source advanced treating according to claim 1 and reuse technology, it is characterised in that: high The quality water self-cleaning landscape pool 0.5~4m of the depth of water, hydraulic detention time are greater than 1.0d, and emergent aquactic plant is planted in phytal zone and swims to plant Object, pool bottom are laid with sandy soil protective layer and coarse sand filtering layer;Pool outlet setting fluid level controller, periodically puts according to the reuse demand of water Water is to neighbouring river, park green land or direct recharge of groundwater.
CN201610002051.7A 2016-01-06 2016-01-06 A kind of urban runoff pollution of area source advanced treating and reuse technology Expired - Fee Related CN105461075B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106186337B (en) * 2016-08-03 2019-06-14 江西利华环保有限公司 A kind of heavy metal waste water treatment system
CN106966508A (en) * 2017-05-26 2017-07-21 湖南农业大学 The method that a kind of utilization Plant Pond+artificial wetland high-efficiency removes heavy metal in farmland irrigating water
CN109384347A (en) * 2017-08-14 2019-02-26 光大水务科技发展(南京)有限公司 City surface source pollution purifying treatment method
CN108996703A (en) * 2018-07-25 2018-12-14 青岛理工大学 A kind of black smelly water water and soil water circular biological repair system

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CN103195157A (en) * 2013-04-09 2013-07-10 环境保护部华南环境科学研究所 System and method for runoff in-situ processing in early days of urban rainfall
CN104098183A (en) * 2014-07-31 2014-10-15 北京林业大学 System for improving surface runoff water quality through optimizing landscape

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN2866591Y (en) * 2006-02-15 2007-02-07 北京世纪赛德科技有限责任公司 Combined artificial wet land bed
CN101012643A (en) * 2006-12-18 2007-08-08 国家环境保护总局华南环境科学研究所 Construction method of ecological bank slope effectively removing area-source pollution fleetly
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