CN110294531A - A kind of water treatment system and method based on ecological core wetland - Google Patents
A kind of water treatment system and method based on ecological core wetland Download PDFInfo
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 30
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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
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/18—PO4-P
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A kind of water treatment system based on ecological core wetland, the system comprises upper layer current wetland layer and lower layer's biofilter layer, upper layer current wetland layer includes support rack, planting groove (15-2), filler (2), plant (3) and inlet and outlet pipes；Lower layer's biofilter layer includes filter tank pond body, inlet and outlet pipes, Biomedia (6), aerator (7), sludge pipe (8), water outlet (10) and flow regulator (11)；System further includes medicine system (microorganism and carbon source) and tele-control system.Current wetland packing layer includes phosphorus adsorbent material at least, and planting plants on packing layer, packing layer retention, deposition, suction-operated, the microbial action of packing layer and root system of plant absorption remove water pollutant jointly；Biofilter is several processing ponds for being partially filled with Biomedia；Pass through conduction pipe water conservancy diversion between processing pond；Water stream channel is equipped between upper layer current wetland and lower layer biofilter.
Description
Technical field
The present invention relates to water-treatment technology fields, and in particular to a kind of water treatment system and side based on ecological core wetland
Method.
Background technique
River, lake be breed civilization cradle, played in agricultural production, industrial development and social construction can not or
Scarce effect.However, the fast development of industrialization in recent years, urbanization causes serious water environment pollution, water body is destroyed
Even there is seasonality or the throughout the year black smelly phenomenon of property in ecological functions, many rivers and lake.The pollution main source of natural water
In initial rainwater, sewage plant Tail water reuse, rural sewage etc..By taking rain sewage diversion as an example, with urban ecology civilization construction paces
Quickening, although urban pipe network construction be gradually improved, the adapter tube rate of municipal sewage is still difficult to realize 100%.And country sewage
Small dispersion is measured, and pipe network collection system is unsound, therefore, it is difficult to focus on.Meanwhile agricultural non-point source pollution caused by rainfall is also
It is one of the main source approach of environment water pollution.
For above situation, the research and application of related water treatment system existing at present (such as CN107720973A,
CN201711273851 and CN108439720A), and water outlet is relatively stable, even up to arrives IV class earth's surface water quality standard.However, this
A little water treatment systems are only that multiple reaction tanks/technique is carried out the system that simple combination forms a technique for fixing process, because
This, it is big to land area demand.In addition, its wetland unit all relies on existing soil, and therefore, the riding position of other units
It must need around wetland unit, it is more demanding to landform.
Current wetland is to afforest object by surface of water loving plant, using sandstone soil as filler, water naturally osmotic is allowed to filter
Man-made tourist site.It with no surface water, occupied area is small the advantages that, become domestic and international widely used artificial swamp type.With one
As activated sludge process compare, biofilter integrates biological oxidation and retention suspended solid, and saving post precipitation pond, (two is heavy
Pond), have volumetric loading, hydraulic loading is big, hydraulic detention time is short, required capital expenditure is few, take up little area, effluent quality is good,
The features such as operation energy consumption is low, operating cost is few.
Summary of the invention
The object of the present invention is to provide a kind of water treatment systems and method based on ecological core wetland, by current wetland and life
Object filter tank is integrated in one, suitable for the processing of municipal wastewater, sewage plant tail water, surface water and initial rainwater, the system footprint
Area is small, technique is flexible, stable water outlet, is easy to O&M.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of water process based on ecological core wetland
System, the system comprises upper layer current wetland layer and lower layer's biofilter layer, upper layer current wetland layer includes support rack, kind
Plant slot (15-2), filler (2), plant (3) and inlet tube and outlet tube；Lower layer's biofilter layer includes filter tank pond body, inlet and outlet pipes, life
Object medium (6), aerator (7), sludge pipe (8), water outlet (10) and flow regulator (11)；System further includes dosing system
System (microorganism and carbon source) and tele-control system.
Current wetland packing layer includes phosphorus adsorbent material at least, and the graded material including different-grain diameter, is planted on packing layer
Plant is planted, packing layer retention, deposition, suction-operated, the microbial action of packing layer and root system of plant absorption remove jointly
Water pollutant, especially to the removal of total phosphorus.Biofilter is several processing ponds for being partially filled with Biomedia；Processing pond it
Between pass through conduction pipe water conservancy diversion；Biomedia includes anaerobism and oxygen and aerobic microbial population by attachment in processing pond,
In the environment of different carbon-nitrogen ratios, dissolved oxygen, temperature and pH, total nitrogen and total phosphorus, ammonia nitrogen, COD, ss are removed, especially to total nitrogen
Removing；
It is equipped with water stream channel between upper layer current wetland and lower layer biofilter, allows water flow by upstream or downstream or reflux
By current wetland layer and biofilter layer, jointly to water process.
Artificial swamp is subsurface constructed wetland, including vertical subsurface flow wetland and horizontal subsurface flow wetland；The water inlet pipe
The water pipe that road is placed in upper layer current wetland surface part includes jet pipe or spray head, and water inlet line is placed in upper layer current wetland surface section
The water pipe divided includes jet pipe or spray head；Horizontal drowned flow formula wetland, water flow are delayed perpendicular to root system of plant from water inlet end in the horizontal direction
Slow plug-flow is to water outlet；Pass through spray head or jet pipe when vertical subsurface flow, water flow is parallel to root system of plant and slowly flows from surface layer in wetland
To bottom；Horizontal drowned flow formula is from the slowly flowing in the horizontal direction in root system of plant layer import；The wet telluric water of vertical subsurface flow formula
Flowing direction and root system of plant layer is in parastate, and effluent collection system is in wetland bottom；The packing layer of the current wetland includes
Phosphorus adsorbent material, graded stuffing and planting soil.Packing area (2) graded material from thick to thin from bottom to top, one well matched 3~5 layers,
Partial size gravel, volcanic rock, biomass ceramsite, small particle size zeolite, phosphorus adsorbing medium and planting soil including thickness, packing area (2)
Thickness is generally in 60~100cm, and wherein phosphorus adsorbing medium laying depth can be biology in 20~40cm, the phosphorus adsorbent material
Matter charcoal, iron carbon or resinae adsorbent material.Current wetland can also add slow-release organic matter as carbon source.These organic matters
It may include stalk, straw, sawdust etc. through crushing and (fermented) material, provide part carbon source for lower layer's biofilter layer.
The biological filter unit is made of several pond bodies (9), and specific pond body (9) quantity is determined according to water process amount,
Including at least an aerobic nitrification reaction tank and an anaerobism or anoxic denitrification reaction tank or multiple synchronous nitration and denitrification ponds,
The day output of single treatment tank body (unit) is 100~2000m3；Serial or parallel connection between each processing unit, parallel units
Depending on quantity is by day day output of the processing water inventory divided by single processing unit；The Biomedia (6) of biofilter is removable
Dynamic formula is fixed, and medium can be biological filter sand, net bubble filler, biomass carbon and elastic filler, filling rate 20%~
100%, 20%~95%, the shape of Biomedia can be rectangular, round, Filamentous permeability rate.Each of biofilter layer
Pond body (9) is equipped with oxygenation pipe, medicament supplement pipeline and spoil disposal pipeline, and wherein oxygenation pipe is mainly that system provides dissolution
Oxygen and the cleaning and update for realizing Biomedia surface；Medicament supplement pipeline is mainly that system provides carbon source and microorganism liquid agent；
The mud of the regular emission treatment bottom of pond portion of spoil disposal pipeline.
System is equipped with central processing unit, and the input signal of central processing unit is by the chemical sensitisation that is distributed in pipeline and container
Device, temperature, liquid level and flow sensor input, and control signal water pump, blower, the inlet and outlet pipe lines, confession of central processing unit
Electrically operated valve provisioned in feed channel, tonic pipeline and long-range automatic water quality monitoring system.
Further, upper layer subsurface flow wetland unit system moveable structure, moveable structure are formed by way of module
The arrangement of upper layer subsurface flow wetland unit, mobile modular tank are metal pipe frame composition, install pulley below mobile module,
It is run in the guide rail installed on processing pool wall, subsurface flow wetland unit bottom side is equipped with captation, and water flow passes through collection water conduit reflux
Deep purifying is carried out to front end biological treatment tank；The discharge of aeration is completed by the gap between mobile unit and wall.It is mobile
Formula structure is conveniently replaceable the filler of upper layer wetland unit, and phosphorus rich layer, that is, phosphorus adsorbing medium of absorption can directly be removed module and be used
Make the slow release carbon source of phosphate fertilizer or biofilter.Portable structure is convenient for the maintenance O&M of lower layer biofilter.
Based on a kind of water treatment system and method based on ecological core wetland that above structure obtains, the water process side
Method are as follows:
When a. running, the multiple water treatment systems of serial or parallel connection as needed；
B. make part (ratio is adjustable) staying water enter upper layer by water inlet line 4 by flow regulator 11 to dive
Stream wetland layer is handled, and current wetland layer packing area 2 is composed of the graded material of different-grain diameter unlike material, and seed selection is planted
Strain 3 is surface green plants, completes water by the absorption of root system of plant, the retention of filler, deposition, absorption and biochemical action
The target of matter purification, mainly to the removal of total phosphorus, the water through undercurrent layer wetland variation flows back into biological filter by captation
The water inlet end in pond；
C. another part staying water flows directly into lower layer's biofilter layer by water inlet pipe 5, by different specific surface areas
Several biofilters filled with the Biomedia of permeability rate by it is fixed include anaerobism and oxygen and aerobic microbiological population,
In the environment of different carbon-nitrogen ratios, dissolved oxygen, temperature and pH, complete to TN, TP, NH3The removal of-N, COD, SS, especially to total nitrogen
Removal；
D. treated, and whole water bodys are discharged eventually by water outlet 10 or enter next stage water treatment unit.
The planting groove 15-2 is made of metal pipe frame, plastics or wood diaphragms, antiseepage film and discharge outlet, lower section peace
Pulley is filled, roll-sliding is provided with captation on the guide rail installed on processing pool wall, and water flow can be flowed back by captation
Advanced treating is carried out to biofilter layer front end；Described；Planting groove is equipped with the valve of discharge outlet and adjustable flow, is used for
The operating water level and maintenance water level of wetland are controlled, so that the hydraulic detention time of wetland is controlled, the hydraulic detention time one of wetland
As control within 10 hours.Planting trench bottom is in the gradient that 15-2 is in 5 °~10 °, and lower one end is located at captation,
Conducive to current wetland layer charge for remittance and/or reflux.
The packing area 2 graded material from thick to thin from bottom to top, one well matched 3~5 layers, the partial size gravel including thickness
Stone, volcanic rock, biomass ceramsite, small particle size zeolite, phosphorus adsorbing medium and planting soil, 2 thickness of packing area generally 60~
100cm, wherein phosphorus adsorbing medium laying depth can be biomass carbon, iron carbon or tree in 20~40cm, the phosphorus adsorbent material
Lipid adsorbent material.
The packing area 2 sets water distributor, and water distributor uses the form of spray head, uniformly sprays, planting plants on planting soil,
Plant removes the pollutant in water body, by periodically carrying out harvesting removal to plant, only by the absorption of growth and root system
Change water body, the low operation maintenance of the investment of planting plants is convenient.
The lower layer biofilter layer of ecological core wet land system is made of 3 to 5 series units, the water inlet pipe 5 into
Water end (W.E.) is located at biofilter lower end, and water flows through each processing unit in the form of baffling, can extend hydraulic detention time, hydraulic retention
Time general control is within 6 hours.It multichannel biofilter can be in parallel；The parallel connection of ecological core wet land system is for improving at day
The ton water of reason, series connection is for further promoting effluent quality；Water inlet can for municipal wastewater, sewage plant tail water, surface water and
Four class water or three classes water may be implemented in initial rainwater etc., water outlet.
The ecology core wet land system passes through the flow of control valve flow-dividing control uplink water and downlink water.Uplink water is by water distribution
Pipe sprinkling irrigation is full of the packing layer of upper layer current wetland in upper layer current wetland, gravity flow, guarantees wet land system water distribution and receives the equal of water
Even property, while preventing pollutant from blocking water distributor, there are many current wetlands of plant by kind for uplink water, in plant absorption and fill out
Achieve the purpose that purifying water body under the action of the bed of material, mainly to the removal of total phosphorus；Downlink water is more by lower layer biofilter
Grade biologic packing material treatment region, has significant treatment effect to total phosphorus, total nitrogen and COD, especially to the removing of total nitrogen.Uplink water body
The 20~50% of total Water are accounted for, converge the multi-stage biological treatment region for completing biofilter with downlink water after current wetland is handled
Purified treatment reaches discharge standard.
The utility model has the advantages that when the present invention is run, the multiple water treatment systems of serial or parallel connection as needed；It is adjusted by flow
Device makes part staying water enter upper layer current wetland layer to be handled, and the sewage through undercurrent layer wetland variation can be used as tune
It is water-saving to pass back into biofilter layer；Another part staying water flows directly into lower layer's biofilter layer and is handled, according to need
It controls aeration quantity and microorganism realizes the removal of specific pollutants in water body；Treated under whole water are finally discharged or enter
Level-one water treatment unit.
Current wetland and biofilter are integrated in one by the present invention, sufficiently combine biological water process and landscape ecological
Function and advantage.The stability that biofilter removes pollutant is good, not by seasonal effect；Treatment effeciency is high, and occupied area is small, easily
It is not in clogging in cleaning；Current wetland additionally provides necessity while retaining and remove with phosphorus is main pollutant
Ecoscape effect, construction with run cost it is low.Ecological core wetland have take up little area, technique flexibly, stable water outlet, be easy to
The characteristics of O&M, long service life, the processing suitable for municipal wastewater, sewage plant tail water, surface water and initial rainwater.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the more biochemistry pool structural section schematic diagrames of the present invention；
Fig. 3 is the schematic cross-section that Fig. 2 component is rotated by 90 °.
Respectively composition label is as follows in attached drawing: 1, support rack, 2, packing area, 3, plant, 4, water inlet line, 5, water inlet pipe,
6, Biomedia, 7, aerator, 7-1 aeration tube, 8, sludge pipe, 9, pond body, 10, water outlet, 11, flow regulator.12
Biochemical filler in pond crosses water pipe, 14 pipeline supports between 13 ponds.15 support devices, 15-1 support column, (water receiving crosses 15-2 planting groove
Slot, concrete integral structure integrated with support column).
Specific embodiment
Further explanation is done to the present invention below with reference to embodiment and attached drawing.Following embodiments do not limit in any form
The system present invention.All technical solutions obtained by the way of equivalent substitution or equivalent transformation, are in protection model of the invention
Among enclosing.
A kind of water treatment system and method based on ecological core wetland is provided, system includes upper layer current wetland layer and lower layer
Biofilter layer, upper layer current wetland layer are made of support rack, planting groove, filler, plant and water inlet line；Lower layer's biological filter
Pond layer is made of water inlet pipe, Biomedia, aerator, sludge pipe；Whole system further includes flow regulator, pond body and goes out
The mouth of a river.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the method for treating water are as follows: when operation, the multiple water treatment systems of serial or parallel connection as needed；It is adjusted and is filled by flow
Setting, which makes part (ratio is adjustable) staying water enter upper layer current wetland layer by water inlet line, is handled, wet through undercurrent layer
The water of ground processing can be used as adjusting water and fall into biofilter layer by gravity；Another part pending water is straight by water inlet pipe
It connects and flows into lower layer biofilter layer, the microbiological treatment being attached on Biomedia controls aeration quantity, carbon nitrogen as needed
Than and pH realize water body in specific pollutants removal；Treated under whole water bodys are discharged or enter eventually by water outlet
Level-one water treatment unit.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the support rack supports planting groove, and planting groove upper layer is equipped with water distributor, the strong water of plantation purification of water quality ability in planting groove
Plant.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the packing area of planting groove graded material from thick to thin from bottom to top, one well matched 3~5 layers, the partial size gravel including thickness
Stone, volcanic rock, biomass ceramsite, small particle size zeolite, phosphorus adsorbing medium and planting soil, packing area thickness generally in 60~100cm,
Wherein phosphorus adsorbing medium laying depth is in 20~40cm.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the current wetland water inlet line be placed in the part water pipe of upper layer current wetland layer using jet pipe or nozzle type, it can be achieved that
Horizontal subsurface flow wetland or vertical subsurface flow wetland function.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the water inlet end of lower layer biofilter water inlet pipe is located at biofilter lower end, multistep treatment pond is flowed through by baffling form,
Hydraulic detention time can be extended.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the Biomedia is packaged type or fixed, and medium can be biological filter sand, net bubble filler, biomass carbon, elasticity
Filler etc., filling rate is 20%~100%, and 20%~95%, shape of medium can be rectangular, round, Filamentous etc. permeability rate.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, the support rack is metal material, and plantation trench bottom has 5~10 ° of the gradient, keeps sludge poly- in the bottom of water outlet one end
Product.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, in the opposite of water inlet line, water outlet height and water inlet line depth displacement are not less than 5cm for the water outlet position.
In a preferred embodiment of the present invention, a kind of water treatment system and method based on ecological core wetland
In, lower layer, that is, subterranean layer processing pond of ecological core wet land system is that biological treatment tank is made of 3 to 5 group series units, more lifes
Object processing pond can be in parallel；The parallel connection of ecological core wet land system is used to improve the water of processing, connects for promoting water quality treatment.
The present invention be directed to municipal sanitary sewage, sewage plant tail water, surface water and primary rainwater etc..
The packing layer of wetland sets water distributor, and water distributor uses the form of spray head, uniformly sprays, planting plants on planting soil,
Plant removes the pollutant in water body, by periodically carrying out harvesting removal to plant, only by the absorption of growth and root system
Change water body, the low operation maintenance of the investment of planting plants is convenient；Packing layer sets the filler of different-grain diameter, respectively coarse grain diameter gravel,
Biomass ceramsite, small particle size zeolite, phosphorus adsorbing medium and planting soil.Upper layer is green plant treated water through planting groove (water receiving aqueduct,
It is integrated with support column, concrete integral structure) it can be flow to again lower layer biofilter with outlet or after providing carbon source, be in figure
The structure of four biofilters, inside there is Biomedia, can select anaerobism and oxygen and aerobic (aeration) respectively.It was equipped between pond
Water pipe.In order to utilize water-head and energy conservation, the water level elevation for controlling each pond is different, can flow automatically through each pond.
The ecology core wet land system passes through the flow of control valve flow-dividing control uplink water and downlink water.Uplink water is by water distribution
Pipe sprinkling irrigation is full of the packing layer of upper layer current wetland in upper layer current wetland, gravity flow, guarantees wet land system water distribution and receives the equal of water
Even property, while preventing pollutant from blocking water distributor, there are many current wetlands of plant by kind for uplink water, in plant absorption and fill out
Achieve the purpose that purifying water body under the action of the bed of material, mainly to the removal of total phosphorus；Downlink water is more by lower layer biofilter
Grade biologic packing material treatment region, has significant treatment effect to total phosphorus, total nitrogen and COD, especially to the removing of total nitrogen.Uplink water body
The 20~50% of total Water are accounted for, converge the multi-stage biological treatment region for completing biofilter with downlink water after current wetland is handled
Purified treatment reaches discharge standard.Biological filter unit pond body be underground tubular structure constitute, top subsurface flow wetland unit with
It is connected between tubular structure using water service pipe.The diameter of buried pipe there is interlayer to form biofilter single at 160 centimetres or more
Member, the green plant frame of top subsurface flow wetland unit rest on tube body top, windowing above the tube body of aerobic tank, anaerobic pond not windowing,
Anaerobism effect is more preferable, and the pipeline connection of interior unit pond body can lower construction cost using water service pipe (gravity flow or pump drive)
With the cost of operation.
Specific embodiment 1
The municipal tail water of 5000 tons of day processing mention mark, and water inlet TN and TP is respectively 12.8mg/L and 0.49mg/L, it is desirable that water outlet
TN and TP reaches ground Table IV class water quality standard, i.e. 1.5mg/L and 0.3mg/L.Three ecological core wetland unit series connection processing, mistake are set
Water mode are as follows: 20% water inlet elder generation uplink flows through upper layer current wetland layer, then flows back into first of lower layer's biofilter layer
The inhalant region of unit and 80% downlink water inlet converge, and then flow into second unit and third singly after first unit is handled
Member, last Chinese effluent.Current wetland layer packing area laying depth is 1m, and temperature is 15~30 DEG C, and HRT is controlled in 10h.Lower layer
The effective height of biofilter is 3 meters, residence time 8h, and final outflow water TN and TP are respectively 1.4mg/L and 0.20mg/L, TN
It is respectively 89% and 59% with TP removal rate.
Specific embodiment 2
1000 tons of sanitary sewages of day processing, setting 5 units of series connection are one group, and 2 groups are arranged altogether.At 2 groups of unit parallel connections
Reason, sewage average mark are incorporated in 2 groups of ecology core wet land treating systems.Lower layer's biofilter layer is aerated every 40min and stops 30min, temperature
Degree is 15~30 DEG C, and every group of HRT control is in 8h.Final outflow water reaches level-one emission standard A.
Specific embodiment 3
Certain river water quality is bad V class water, CODcr, NH3- N, TP index are respectively 60mg/L, 10mg/L and 0.4mg/L.
Day handles 10000 tons of river water qualities and is promoted, and 5 groups of ecology core wetlands are arranged,.Every group of processing capacity is 2000m3/ d, every group of ecology
Core wetland is in series by 3 units.The biofilter residence time of every group of ecology core wetland be 6h, effluent index CODcr,
NH3- N and TP respectively reaches the four class water quality standard of standard of 25mg/L, 1.2mg/L and 0.20mg/L, removal rate respectively reaches 58%,
88% and 50%.
Claims (10)
1. a kind of water treatment system based on ecological core wetland, which is characterized in that the system comprises upper layer current wetland layer and
Lower layer's biofilter layer, upper layer current wetland layer include support rack, planting groove (15-2), filler (2), plant (3) and disengaging
Water pipe；Lower layer's biofilter layer includes filter tank pond body, inlet and outlet pipes, Biomedia (6), aerator (7), sludge pipe (8), goes out
The mouth of a river (10) and flow regulator (11)；System further includes medicine system (microorganism and carbon source) and tele-control system.
Current wetland packing layer includes phosphorus adsorbent material at least, and the graded material including different-grain diameter, plants and plants on packing layer
Object, packing layer retention, deposition, suction-operated, the microbial action of packing layer and root system of plant absorption are gone jointly in water removal
Pollutant, including the removal to total phosphorus；
Biofilter is several processing ponds for being partially filled with Biomedia；Pass through conduction pipe water conservancy diversion between processing pond；Processing pond
Interior Biomedia includes anaerobism and oxygen and aerobic microbial population by attachment, different carbon-nitrogen ratios, dissolved oxygen, temperature and
In the environment of pH, total nitrogen and total phosphorus, ammonia nitrogen, COD, ss are removed；Including the removing to total nitrogen；
It is equipped with water stream channel between upper layer current wetland and lower layer biofilter, allows water flow to pass through by upstream or downstream or reflux
Current wetland layer and biofilter layer, jointly to water process.
2. the water treatment system according to claim 1 based on ecological core wetland, characterized in that upper layer current wetland can be with
It is vertical subsurface flow or horizontal drowned flow；In horizontal drowned flow water flow perpendicular to root system of plant from water inlet end in the horizontal direction slow plug-flow to
Water outlet；Water flow is parallel to root system of plant and slowly flows to bottom, the packing layer packet of the current wetland from surface layer in vertical subsurface flow
Include phosphorus adsorbent material, graded stuffing and planting soil.
3. the water treatment system according to claim 1 based on ecological core wetland, which is characterized in that the biofilter
Unit is made of several pond bodies (9), and specific pond body (9) quantity is determined according to water process amount, and it is anti-to include at least an aerobic nitrification
Ying Chi and anaerobism or anoxic denitrification reaction tank or multiple synchronous nitration and denitrification ponds, the day output of single processing unit
For 100~2000m3；Serial or parallel connection between each processing unit, the quantity of parallel units is by day processing water inventory divided by single
Depending on the day output for managing unit；The Biomedia (6) of biofilter is packaged type or fixed, and medium can be biological filter
Sand, net bubble filler, biomass carbon and elastic filler, filling rate is 20%~100%, and permeability rate is 20%~95%, biology
The shape of medium can be rectangular, round, Filamentous；Each pond body (9) of biofilter layer is equipped with oxygenation pipe, medicament supplement
Pipeline and spoil disposal pipeline, wherein oxygenation pipe is mainly that system provides dissolved oxygen and realizes the cleaning and more on Biomedia surface
Newly；Medicament supplement pipeline is mainly that system provides carbon source and microorganism liquid agent；The silt of the regular emission treatment bottom of pond portion of spoil disposal pipeline
Mud.
4. the water treatment system according to claim 1 based on ecological core wetland, which is characterized in that system is equipped with centre
Manage device, the input signal of central processing unit is by the chemical sensor, temperature, liquid level and the flow sensing that are distributed in pipeline and container
Device input, and provisioned in the control signal water pump of central processing unit, blower, inlet and outlet pipe lines, steam line, tonic pipeline
Electrically operated valve and long-range automatic water quality monitoring system.
5. the water treatment system according to claim 2 based on ecological core wetland, which is characterized in that the packing area
(2) graded material from thick to thin from bottom to top, matches 3~5 layers, partial size gravel, volcanic rock, biomass ceramsite including thickness, small
Partial size zeolite, phosphorus adsorbing medium and planting soil, packing area (2) thickness is generally in 60~100cm, and wherein phosphorus adsorbing medium is laid with thick
For degree in 20~40cm, the phosphorus adsorbent material can be biomass carbon, iron carbon or resinae adsorbent material.
6. according to claim 1 based on ecological core wetland water treatment system, characterized in that upper layer subsurface flow wetland unit is
Moveable structure, the support rack are welded by metal pipe frame, and planting groove (1) is by plastics or wood diaphragms and antiseepage
Film is constituted, and pulley is installed in lower section, roll-sliding on the guide rail installed on processing pool wall；Subsurface flow wetland unit bottom side is provided with collection
Water installations, water flow carry out advanced treating by first processing pond that captation is back to biofilter layer；The plantation
Trench bottom is in (1) 5 °~10 ° of the gradient, and lower one section is located at captation, is conducive to current wetland layer charge for remittance and/or returns
Stream；Upper layer subsurface flow wetland unit moveable structure forms the arrangement of upper layer subsurface flow wetland unit by way of module.
7. according to claim 1 or 2 based on ecological core wetland water treatment system, characterized in that biological filter unit pond
Body is that underground tubular structure is constituted, and is connected between top subsurface flow wetland unit and tubular structure using water service pipe.
8. the method that the water treatment system based on ecological core wetland described in one of -7 is handled according to claim 1, special
Sign is,
When a. running, the multiple water treatment systems of serial or parallel connection as needed；
B. part (ratio is adjustable) pending water is made to enter upper layer undercurrent by water inlet line (4) by flow regulator (11)
Wetland layer is handled, and current wetland layer packing area (2) is composed of the graded material of different-grain diameter unlike material, and seed selection is planted
Strain (3) is surface green plants, is completed by the absorption of root system of plant, the retention of filler, deposition, absorption and biochemical action
The target of purification of water quality, emphasis are the removals to total phosphorus, and the water through undercurrent layer wetland variation is converged by the water outlet of planting groove (1)
First processing pond that captation flows into lower layer biofilter is flowed into, in-depth processing is participated in.
C. another part pending water flows directly into lower layer's biofilter layer by water inlet pipe (5), by different specific surface areas and thoroughly
Several biofilters of the Biomedia filling of water rate include anaerobism and oxygen and aerobic microbiological population by fixing, in difference
In the environment of carbon-nitrogen ratio, dissolved oxygen, temperature and pH, complete to TN, TP, NH3The removing of the removal of-N, COD, SS, especially total nitrogen.
D. treated, and whole water are discharged eventually by water outlet (10) or enter next stage water treatment unit.
9. according to the method described in claim 8, it is characterized in that, the charge for remittance end discharge outlet of current wetland layer is equipped with adjustable
The valve of flow, for controlling the operating water level and maintenance water level of wetland, so that the hydraulic detention time of wetland is controlled, wetland
Hydraulic detention time general control is within 10 hours；The water inlet end of the water inlet pipe (5) of biofilter layer is located under biofilter
End, water are flowed through each processing unit in the form of baffling, can extend hydraulic detention time, and hydraulic detention time general control is small 6
When within.
10. method according to claim 8 or claim 9, which is characterized in that the biofilter layer of ecological core wet land system is by 3 to 5
A series unit composition, multichannel biofilter can be in parallel；The parallel connection of ecological core wet land system is used to improve the ton water of day processing
Amount, series connection is for further promoting effluent quality；Water inlet can be municipal wastewater, sewage plant tail water, surface water and initial rainwater,
Four class water or three classes water are realized in water outlet.
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| CN113683197A (en) * | 2021-08-16 | 2021-11-23 | 安徽新宇生态产业股份有限公司 | Efficient nitrogen and phosphorus removal anti-blocking constructed wetland system |
| CN114057363A (en) * | 2022-01-17 | 2022-02-18 | 南京智感环境科技有限公司 | Physical and biological combined enhanced automatic control module and tail water treatment method |
| CN114804535A (en) * | 2022-05-12 | 2022-07-29 | 中国科学院水生生物研究所 | Ecological treatment device and method for improving biological safety of biochemical tail water in fine phosphorus chemical industry park |
| CN114804535B (en) * | 2022-05-12 | 2023-07-04 | 中国科学院水生生物研究所 | Ecological treatment device and method for improving biological safety of biochemical tail water in fine phosphorus chemical industry park |
| CN116119859A (en) * | 2022-12-08 | 2023-05-16 | 湖北省水利水电规划勘测设计院 | Ecological Filtration Method for Rain and Sewage Overflow Outlet Treatment |
| CN116395833A (en) * | 2023-04-19 | 2023-07-07 | 生态环境部土壤与农业农村生态环境监管技术中心 | Constructed wetland blocking positioning and relieving device and method based on water flow change |
| CN116395833B (en) * | 2023-04-19 | 2023-11-03 | 生态环境部土壤与农业农村生态环境监管技术中心 | Constructed wetland blocking positioning and relieving device and method based on water flow change |
| CN116462355A (en) * | 2023-04-23 | 2023-07-21 | 中煤科工集团南京设计研究院有限公司 | Integrated ecological composite water treatment system and treatment method |
| CN117228850A (en) * | 2023-10-19 | 2023-12-15 | 同济大学 | Plain river network bank pollution interception system |
| CN117401871A (en) * | 2023-12-14 | 2024-01-16 | 西南石油大学 | A biological treatment-based sewage treatment method for oilfield living areas |
| CN117401871B (en) * | 2023-12-14 | 2024-02-20 | 西南石油大学 | Biological treatment-based oilfield living area sewage treatment method |
| CN118851475A (en) * | 2024-07-23 | 2024-10-29 | 中铁十局集团有限公司 | Biofilter structure of artificial wetland |
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