CN105084548B - A kind of high efficient block artificial swamp based on new packing bed - Google Patents
A kind of high efficient block artificial swamp based on new packing bed Download PDFInfo
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- CN105084548B CN105084548B CN201510600529.1A CN201510600529A CN105084548B CN 105084548 B CN105084548 B CN 105084548B CN 201510600529 A CN201510600529 A CN 201510600529A CN 105084548 B CN105084548 B CN 105084548B
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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 discloses a kind of high efficient block artificial swamp based on new packing bed, it is characterised in that：One pond body is set, two water inlets are symmetrically arranged with the side of pond body, opposite side is symmetrically arranged with two delivery ports, packed bed is filled with pond body；Packed bed is in turn divided into the water distribution area filled with cobblestone, the compounded mix area filled with compounded mix and the gathering ground filled with cobblestone along water (flow) direction；The particle diameter of compounded mix is gradually reduced along water (flow) direction in compounded mix area, and is being internally provided with polyurethane foam cube treatment post；Soil horizon is provided with above water distribution area, compounded mix area and gathering ground, is planted on soil horizon and is implanted with wetland plant.Artificial swamp of the invention is on the basis of sewage treating efficiency higher is ensured, greatly reduce the blocking probability of wetland, the disposal ability of heavy metal ion in Wetlands on Wastewater is enhanced, the early stage startup optimization time of wetland is reduced, the operation and maintenance cost of wetland is reduced.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to artificial swamp structure design and packed bed are designed.
Technical background
Currently, water pollution and shortage of water resources have turned into us and are greatly developing the major issue that the daylight saving time faces.Root
Reported according to middle business's information network and shown, to 2011, China year wastewater emission amount was up to 658.9 hundred million tons, wherein sanitary sewage for cut-off
Discharge capacity is 42,800,000,000 tons, and 12.7% is risen on year-on-year basis.The stain disease growing for discharge capacity, traditional activated sludge process treatment
The problems such as capital expenditure of technique is big, operating cost is high, nitrogen (N) phosphorus (P) nutrient clearance is relatively low becomes increasingly conspicuous, thus seeks
Look for that a kind of operating cost is low, nitrogen phosphorus handling rate is high, the convenient processing mode of operational management is particularly important.
Artificial swamp is by manually building and controlling operation, using the thing of soil, artificial dielectric, plant and microorganism
Reason, chemical, biological triple synergies, a kind of technology processed sewage, sludge.Artificial swamp has good sewage
Detergent power and relatively low investment, operation and maintenance cost, especially for nutrients such as the nitrogen (N) in stain disease, phosphorus (P)
Removal has larger advantage compared with traditional activated sludge process.
But artificial swamp occurs the clogging of Wetland Substrate in longtime running, the treatment of Wetlands on Wastewater is had influence on
Efficiency, so as to have to artificial swamp using aeration, stop bed have holidays by turns, changes the measures such as matrix solve to a certain extent blocking
Problem.But these measures have the shortcomings that artificial regulatory requirement is high, quantities is big, uneconomical practical, to the wide of artificial swamp
General application is impacted.
The content of the invention
The present invention seeks on the basis of traditional drowned flow artificial wet land, to its matrix fill, bed structure, the method for operation
Optimized with families of plant and transformed, to ensure that wetland on the basis of sewage treating efficiency higher, greatly reduces wetland
Probability is blocked, the early stage startup optimization time of wetland is reduced, the operation and maintenance cost of wetland is reduced, the occupation of land face of wetland is reduced
Product, increases the disposal ability of wetland heavy metal ion such as arsenic, lead, chromium.
The present invention solves technical problem, adopts the following technical scheme that：
The present invention is based on the high efficient block artificial swamp of new packing bed, and its feature is：One pond body is set, described
The side of pond body is symmetrically arranged with two water inlets, and opposite side is symmetrically arranged with two delivery ports, and filler is filled with the pond body
Bed；Described filler edge of bed water (flow) direction is in turn divided into the water distribution area filled with cobblestone, compound filled with compounded mix and fills out
Material area and the gathering ground filled with cobblestone；The particle diameter of compounded mix is gradually reduced along water (flow) direction in the compounded mix area.
Soil horizon is provided with above the water distribution area, compounded mix area and gathering ground, is planted on the soil horizon
There is wetland plant, soil horizon provides growing environment for plant.
High efficient block artificial swamp of the present invention, its feature lies also in：
The compounded mix area is in turn divided into maximum particle diameter compounded mix area, the second particle diameter compounded mix along water (flow) direction
Area, the 3rd particle diameter compounded mix area and minimum grain size compounded mix area；Compounded mix is by sandstone and slag in mass ratio 8~12:1
Mixing is constituted, and wherein slag can effectively adsorb the phosphorus in water；Compounded mix in the maximum particle diameter compounded mix area
Particle diameter is 15~20mm；The particle diameter of the compounded mix in the second particle diameter compounded mix area is 10~15mm；Described
The particle diameter of the compounded mix in three particle diameter compounded mix areas is 5~10mm；It is compound in the minimum grain size compounded mix area
The particle diameter of filler is 1~5mm；It is 20~50mm in the particle diameter of the cobblestone of the water distribution area and the gathering ground.
Water distribution area and section length of catchmenting respectively account for the 5%~10% of packed bed overall length；Maximum particle diameter compounded mix area, second
Footpath compounded mix area, the 3rd particle diameter compounded mix area are identical with the length in minimum grain size compounded mix area, respectively compounded mix area.
In the maximum particle diameter compounded mix area, the second particle diameter compounded mix area, the 3rd particle diameter compounded mix
Polyurethane foam cube treatment post, and the quantity for processing post are all distributed with area and the minimum grain size compounded mix area
Gradually decreased along water (flow) direction.
The polyurethane foam cube treatment post is vertical filled with polyurethane foam in the inside of double-layer stainless steel silk screen
Cube.Outer layer silk screen is used to supporting construction, and internal layer silk screen is used to filled polyurethane foam cubes, and internal layer silk screen can be together with filling
Polyurethane foam cube in it is proposed from outer layer silk screen together.The polyurethane foam cube length of side is 3~5cm, compares table
Area is larger, and biological adhesiveness is good, and biomass is larger, in can effectively improving the efficiency of wetland variation and reducing compounded mix
Biomass, reduce Wetland clogging probability.
The water inlet is arranged at the lower section of the soil horizon, the delivery port be located at the lower section of the water inlet and away from
Difference in height from water inlet is the 0.5%~1.0% of pond body length, to ensure that current can overcome wetland internal drag to flow to out
Mouthful；Two water inlets, two delivery ports are 50cm with the distance of the side of respective side；Two water inlets are respectively inserted with a water inlet branch
Pipe, two water inlet pipes are parallel to water inlet manifold, a magnetic valve are each provided with two water inlet pipes；Two delivery ports are respectively inserted with one and go out
Water branch pipe, two exit branch are parallel to outfall sewer, and a magnetic valve is each provided with two exit branch, by automaton control
System；Automatically control operation requirement as follows：Every time a water inlet pipe magnetic valve and an exit branch electromagnetism are only opened during operation
Valve, operated water-in and water-out branch pipe need to be positioned at the diagonal positions of pond body every time.
Deflector is provided with the pond body, the part for being located at water distribution area and the gathering ground in the pond body is provided with
45 ° of inclined planes, can rationally control flow direction, improve Local Artificial wetland efficiency；Waterproof layer is provided with whole pond body bottom,
Prevent because of seepage so that sewage pollution underground water；The pond body is brick masonry structure, is shaped as cuboid, and length-width ratio is 2~3:
1。
The wetland plant can select reed, cattail of well developed root system etc., also can select some super enriching plants such as centipede
Grass, vetiver or wild etc., wherein ciliate desert-grass can be with super enrichment cadmiums, the kind of the wetland plant with arsenic hyperaccumulation, Amaranthus. l
Density in planting is 10~20 plants/m2。
Compared with the prior art, beneficial effects of the present invention are embodied in：
1st, artificial swamp of the invention can greatly reduce the stifled of wetland on the basis of sewage treating efficiency higher is ensured
Plug probability, the disposal ability of heavy metal ion, reduces the early stage startup optimization time of wetland in reinforcing Wetlands on Wastewater, reduces wet
The operation and maintenance cost on ground.
2nd, artificial swamp of the invention is gradually successively decreased using water distribution area, packing material size with water (flow) direction compounded mix area and
The structure of gathering ground, largely reduces the probability of wetland front end blocking.
3rd, artificial swamp of the invention is set using diagonal positions design at water inlet pipe, exit branch and pond body inside
The mode of deflector, can form a slightly quick water stream channel in wetland, and the cube treatment post for setting can be high
Effect enriched microorganism, with treatment effeciency higher.Therefore the present invention can be in the case that in current, region be larger at a slow speed still
Keep treatment effeciency higher.
4th, artificial swamp of the invention is automatically controlled using magnetic valve can change Inlet and outlet water position, so as to form different
Current express passway, the filler matrix that can be allowed in slow flow rate region and cube treatment post are restored after heavy-duty service
And rest and reorganization, it is that next step heavy-duty service is ready, also reduce the probability of Wetland clogging.
5th, artificial swamp of the invention uses the compounded mix (slag and sandstone), slag can to adsorb the phosphorus in water, and by
Microbial metabolism consumption in plant, water.Root of Wetland Plants is flourishing, oxygen can be sent into root, for growth of microorganism generation
Thank.Some super enriching plants with heavy metal ion such as the chromium in super enrichment water, arsenic, and heavy metal ion can be stored via root
In stem, leaf site.Heavy metal ion can be removed from water by pruning plant stem-leaf.
Brief description of the drawings
Fig. 1 is the profile of high efficient block artificial swamp of the present invention based on new packing bed；
Fig. 2 is the plan of high efficient block artificial swamp of the present invention based on new packing bed；
Fig. 3 is the velocity profile of high efficient block artificial swamp of the present invention based on new packing bed；
Fig. 4 is the structural representation that polyurethane foam cube of the present invention processes post；
Fig. 5 is high efficient block artificial swamp rate distribution histogram of the present invention based on new packing bed；
Marked in figure：1 water inlet manifold；The water inlet pipes of 2a first, the water inlet pipes of 2b second；3 outfall sewers；The water outlets of 4a first
Branch pipe, the exit branch of 4b second；5 magnetic valves；6 deflectors；7 polyurethane foam cubes process post；8 water distribution areas；9 maximum particle diameters
Compounded mix area；10 second particle diameter compounded mix areas；11 the 3rd particle diameter compounded mix areas；12 minimum grain size compounded mix areas；13
Gathering ground；14 inclined planes；15 soil horizons；16 wetland plants.
Specific embodiment
This high efficient block artificial swamp is described further below in conjunction with the accompanying drawings.
Embodiment 1
The present embodiment is based on the high efficient block artificial swamp of new packing bed, including pond body, and pond body is brick masonry structure,
It is shaped as cuboid (10m long, width 5m, 1.5m high)；Two water inlets are symmetrically arranged with the side of pond body, opposite side is symmetrical arranged
There are two delivery ports, packed bed is filled with pond body；Water inlet is arranged at the lower section of soil horizon, and delivery port is located under water inlet
Square and apart from water inlet difference in height is the 1.0% of pond body length；The side of two water inlets, two delivery ports and respective side
The distance on side is 50cm；Two water inlets are respectively inserted with a water inlet pipe, respectively the first water inlet pipe 2a and the second water inlet pipe
2b, two water inlet pipes are parallel to water inlet manifold 1, and a magnetic valve 5 is each provided with two water inlet pipes；Two delivery ports are respectively inserted with one
Exit branch, respectively the first exit branch 4a and the second exit branch 4b, two exit branch are parallel to outfall sewer 3, scene 2
A magnetic valve 5 is each provided with water branch pipe.
In pond body packed bed along water (flow) direction be in turn divided into filled with cobblestone water distribution area 8, filled with compounded mix
Compounded mix area and the gathering ground 13 filled with cobblestone, in compounded mix area the particle diameter of compounded mix along water (flow) direction gradually
Reduce；
Soil horizon 15 is provided with above water distribution area, compounded mix area and gathering ground, is planted on soil horizon and is implanted with wetland
Plant 16.
It is 20~50mm in the particle diameter of the cobblestone of water distribution area and gathering ground.
Compounded mix area is in turn divided into maximum particle diameter compounded mix area 9, the second particle diameter compounded mix area along water (flow) direction
10th, the 3rd particle diameter compounded mix area 11 and minimum grain size compounded mix area 12；Compounded mix is by sandstone and slag in mass ratio 10:
1 mixing is constituted；The particle diameter of the compounded mix in maximum particle diameter compounded mix area is 15~20mm；In the second particle diameter compounded mix
The particle diameter of the compounded mix in area is 10~15mm；The particle diameter of the compounded mix in the 3rd particle diameter compounded mix area be 5~
10mm；The particle diameter of the compounded mix in minimum grain size compounded mix area is 1~5mm；
In maximum particle diameter compounded mix area, the second particle diameter compounded mix area, the 3rd particle diameter compounded mix area and minimum grain size
Polyurethane foam cube treatment post 7 is all distributed with compounded mix area, and the quantity for the treatment of post is gradually decreased along water (flow) direction.
Such as maximum particle diameter compounded mix area and the second particle diameter compounded mix area are inserted with 3 polyurethane foam cube treatment posts, and
3rd particle diameter compounded mix area and minimum grain size compounded mix area have been inserted into 2 polyurethane foam cube treatment posts；Poly- ammonia
Ester foam cubes treatment post is to be filled with polyurethane foam cube in the inside of double-layer stainless steel silk screen, as shown in Figure 4, its
Middle outer layer silk screen can be carried together with the polyurethane foam cube filled in it as support, internal layer silk screen from outer layer silk screen
Go out.
Deflector 6 is provided with pond body, water distribution area and gathering ground bottom 45 ° of inclined planes 14 is provided with, at pond body bottom
Portion is provided with waterproof layer.
Water distribution area and section length of catchmenting are respectively 1m；Maximum particle diameter compounded mix area, the second particle diameter compounded mix area, the 3rd
Footpath compounded mix area is identical with the length in minimum grain size compounded mix area, respectively compounded mix area.
Treatment sewage is entered by water inlet manifold 1, and the magnetic valve 5 on the first water inlet pipe 2a and the second water inlet pipe 2b is only
One is opened, sewage enters wetland by a water inlet pipe.Water impact weakens and flow rate of water flow subtracts in water distribution area 8
Small, water-flow equation is uniform, sees Fig. 3 water distribution zone position flow rate of water flow distribution maps.Packed bed central filler is sandstone and slag
Compounded mix, particle diameter is pressed in water (flow) direction and reduces arrangement, and respectively maximum particle diameter compounded mix area 9, the second particle diameter is combined and fills out
Material area 10, the 3rd particle diameter compounded mix area 11 and minimum grain size compounded mix area 12.Found according to research, Wetland clogging position
Put and be frequently located in wetland front portion.The artificial swamp of the present embodiment is greatly reduced in the anterior filler larger from particle diameter of wetland
Wetland clogging probability, and due to the presence of slag, can be inhaled via Root of Wetland Plants with the phosphorus in the absorption effluent of more efficient
Receive and utilize.Polyurethane foam cube treatment post 7 is distributed with compounded mix area, polyurethane foam cube has specific surface
Product is big, good biological attachment performance, light weight the features such as, the quantity of microorganism in treatment post can be greatly increased, strengthen the place of wetland
Reason ability.Wetland is internally provided with deflector 6, and deflector can select straight panel or arc plate, and current are by institute's shape after deflector water conservancy diversion
Into main water flow passage be in " S " type, as shown in Figure 3.Filler matrix, the treatment post on main water flow passage are so in compared with it
For its position, all run with higher load, biomass is larger.Open with water inlet pipe in an exit branch at diagonal
(with the first water inlet pipe 2a at diagonal being the second exit branch 4b, it is at diagonal with the second water inlet pipe 2b
First exit branch 4a) on magnetic valve, after current are concentrated at gathering ground 13, by the exit branch and outfall sewer 3
By the sewage discharge after treatment.
Reed, cattail of the wetland plant 16 from well developed root system are planted on soil horizon 15；For containing heavy metal ion such as
The sewage of cadmium, lead, arsenic etc., can select some super enriching plants such as ciliate desert-grass, vetiver, Amaranthus. l etc. and plants together.These are planted
Thing can be in super enrichment sewage heavy metal ion, by heavy metal ion from water uptake and accumulation in stem, leaf portion point, planting density
It is 10~20 plants/m2。
Discovery is analyzed to the high efficient block artificial swamp of the present embodiment using the method for numerical simulation, works as feed water flow
When speed is for 0.5m/s, wetland inside flow velocity accounts for the 53.94% of the gross area in the region of 0.04~0.06m/s, and flow velocity is higher than
The region of 0.1m/s only accounts for the 9.54% of the gross area, illustrates that wetland water flow inside velocity flow profile is more uniform, hydraulic performance compared with
For good.Region of the flow velocity less than 0.02m/s accounts for the 16.07% of the gross area, and more common underflow type artificial wet land is larger, but this
Part is to recover the region rested and reorganized, it is necessary to relatively stable environment (as shown in Figure 5).This is simulated by particle-trajectory model
The residence time destribution of the high efficient block artificial swamp liquid flow of invention, show that its hydraulics efficiency λ is 1.725, short circuit
Value s is 0.927.
The carrying out practically and mode of operation of the present embodiment artificial swamp are as follows：First by the magnetic valve on the first water inlet pipe 2a
Open, then the magnetic valve on the second exit branch 4b at diagonal positions is opened, water inlet.After operation a period of time, work as water
In the presence of matter does not reach requirement or has a Yong Shui phenomenons, observation is in the polyurethane foam cube treatment on main water flow passage
Whether microorganism is excessive in post 7.When microorganism is excessive, the polyurethane foam cube treatment on main water flow passage will be in
Polyurethane foam cube of the internal layer silk screen of post 7 together with position in the inner proposes that placement is aside dried.First is simultaneously closed off to enter
Magnetic valve on water branch pipe 2a and the second exit branch 4b, opens the electromagnetism on the second water inlet pipe 2b and the first exit branch 4b
Valve, restarting operation artificial swamp.At this moment the matrix and treatment post being on non-principal water stream channel have self consumption and repair
Multiple process.
, it is necessary to the stem that wetland plant is contained into more heavy metal ion in time, leaf portion point are pruned after several cycles are run
And be transported to relevant treatment department and carry out treatment disposal.
Claims (5)
1. it is a kind of based on new packing bed high efficient block artificial swamp, it is characterised in that：One pond body is set, in the pond body
Side be symmetrically arranged with two water inlets, opposite side is symmetrically arranged with two delivery ports, in the pond body be filled with packed bed；Institute
State packed bed along water (flow) direction be in turn divided into filled with the water distribution area of cobblestone, the compounded mix area filled with compounded mix and
Gathering ground filled with cobblestone；The particle diameter of compounded mix is gradually reduced along water (flow) direction in the compounded mix area；Described
Soil horizon is provided with above water distribution area, compounded mix area and gathering ground, is planted on the soil horizon and is implanted with wetland plant；
The compounded mix area along water (flow) direction be in turn divided into maximum particle diameter compounded mix area, the second particle diameter compounded mix area,
3rd particle diameter compounded mix area and minimum grain size compounded mix area；Compounded mix is by sandstone and slag in mass ratio 8~12:1 mixes
Close and constitute；The particle diameter of the compounded mix in the maximum particle diameter compounded mix area is 15~20mm；It is multiple in second particle diameter
The particle diameter for closing the compounded mix in packing area is 10~15mm；The grain of the compounded mix in the 3rd particle diameter compounded mix area
Footpath is 5~10mm；The particle diameter of the compounded mix in the minimum grain size compounded mix area is 1~5mm；
It is 20~50mm in the particle diameter of the cobblestone of the water distribution area and the gathering ground；
The water inlet is arranged at the lower section of the soil horizon, and the delivery port is located at the lower section of the water inlet and distance is entered
The difference in height at the mouth of a river is the 0.5%~1.0% of pond body length；Two water inlets, two delivery ports and the side of respective side
Distance is 50cm；Two water inlets are respectively inserted with a water inlet pipe, and two water inlet pipes are parallel to water inlet manifold, each on two water inlet pipes
It is provided with a magnetic valve；Two delivery ports are respectively inserted with an exit branch, and two exit branch are parallel to outfall sewer, two exit branch
On be each provided with a magnetic valve；
The maximum particle diameter compounded mix area, the second particle diameter compounded mix area, the 3rd particle diameter compounded mix area and
Polyurethane foam cube treatment post, and the quantity for processing post are all distributed with the minimum grain size compounded mix area along water
Stream direction gradually decreases.
2. high efficient block artificial swamp according to claim 1, it is characterised in that：At the polyurethane foam cube
Reason post is to be filled with polyurethane foam cube in the inside of double-layer stainless steel silk screen.
3. high efficient block artificial swamp according to claim 1, it is characterised in that：The wetland plant is reed, perfume (or spice)
Pu, ciliate desert-grass, vetiver and/or Amaranthus. l, the planting density of the wetland plant is 10~20 plants/m2。
4. high efficient block artificial swamp according to claim 1, it is characterised in that：Water conservancy diversion is provided with the pond body
Plate, 45 ° of inclined planes are provided with the water distribution area and the gathering ground bottom, and waterproof layer is provided with the pond body bottom.
5. high efficient block artificial swamp according to claim 1, it is characterised in that：The pond body is brick masonry structure,
Cuboid is shaped as, length-width ratio is 2~3:1.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105776562A (en) * | 2016-05-18 | 2016-07-20 | 广州市新之地环保产业有限公司 | Packing modulation wetland treatment system |
| CN106966507A (en) * | 2017-04-28 | 2017-07-21 | 东南大学 | Controllable type periodicity two ends alternating water inlet subsurface flow constructed wetland sewage treatment system and its handling process |
| CN109133331B (en) * | 2018-10-24 | 2021-06-15 | 魏伟健 | Restaurant wastewater treatment equipment with uniform aeration, oxygenation and survival promotion functions |
| CN109987796B (en) * | 2019-04-28 | 2024-04-09 | 深圳市清蓝工程咨询有限公司 | Efficient water purification modularized constructed wetland system |
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