CN208980420U - A kind of mixed flow constructed wetland-biofiltration compound sewage processing unit - Google Patents
A kind of mixed flow constructed wetland-biofiltration compound sewage processing unit Download PDFInfo
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- 239000010865 sewage Substances 0.000 title claims abstract description 75
- 238000012545 processing Methods 0.000 title claims abstract description 33
- 150000001875 compounds Chemical class 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000000034 method Methods 0.000 claims abstract description 43
- 230000008569 process Effects 0.000 claims abstract description 39
- 239000000945 filler Substances 0.000 claims abstract description 33
- 238000012856 packing Methods 0.000 claims description 62
- 238000005273 aeration Methods 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 20
- 238000010992 reflux Methods 0.000 claims description 13
- 239000002689 soil Substances 0.000 claims description 8
- 238000003973 irrigation Methods 0.000 claims description 6
- 230000002262 irrigation Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 12
- 239000011574 phosphorus Substances 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000003306 harvesting Methods 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
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- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000011068 loading method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 108091071337 20 family Proteins 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a kind of mixed flow constructed wetland-biofiltration compound sewage processing units, belong to sewage treatment field.The utility model is directed to current artificial wetland treatment inefficiency, the problems such as occupied area is excessive, biofilter dephosphorization low efficiency, the disadvantages of small to water variation adaptability, the utility model will be based on biofilter, introduce the artificial swamp water process mode of two kinds of water flows of level stream and vertical current, combine the advantage of artificial swamp and biological filter etc., the biofilter with Wetland Function is invented, improve water treatment efficiency, reduce the introduction of its occupied area wetland plant, it is of great significance for dephosphorization, plant harvest can be passed through, matrix replacement, easily remove the phosphorus in sewage, improve the removal efficiency of phosphorus.Modularization is carried out to wetland plant and its plantation filler, convenient for the replacement of filler and the harvesting of plant.
Description
Technical field
The utility model belongs to sewage treatment field, and in particular to a kind of compound dirt of mixed flow constructed wetland-biofiltration
Water treatment facilities.
Background technique
Artificial swamp and biofilter are two kinds of major techniques being widely used in China's rural domestic sewage treatment.Its
Middle artificial swamp has many advantages, such as that processing cost is lower, O&M is more convenient, and biofilter has treatment effect preferable, takes up an area face
The advantages that product is smaller.Currently, artificial swamp is often used as sanitary sewage two stage treatment technique, for domestic sewage in rural areas into one
Step purification, it is ensured that standard water discharge.
Artificial swamp is broadly divided into surface flow artificial marshland and drowned flow artificial wet land.Wherein, drowned flow artificial wet land is by system
The different of the type of flow are divided into horizontal drowned flow artificial wet land and vertical subsurface flow wetland again.The working principle of artificial swamp is main
Realize the effect of absorption and filtering to pollutant for filler, the microorganism of filler surface attachment the decomposition of organic matter is utilized and
The effect that wetland plant absorbs nutrient nitrogen, the phosphorus in sewage.The working principle of biofilter is also mainly filter tank
The decomposition of the microbe of inner stuffing attachment utilizes effect.
In the application of two kinds of technologies, although biofilter is higher to the removal efficiency of dirty water pollutant, by filter tank
Water distribution manner limited, for water variation adaptability it is smaller；Simultaneously because lack plant modules, absorption of the filler to phosphorus
Easily saturation, after running for a period of time, dephosphorization efficiency will be greatly reduced in filter tank.Although and artificial swamp can pass through plant modules
The phosphorus of absorption is removed, thus realize phosphorus ligands effect steady in a long-term, but its occupied area is excessive, the low situation for the treatment of effeciency
It is set to be difficult to adapt to the more nervous southern region of land resource.Since both technologies have certain determination, thus lead
It causes it to be difficult to achieve the desired results on treatment effect, also limits two kinds of technologies to a certain extent and widely apply.
Summary of the invention
Technical problem to be solved in the utility model is in view of the problems of the existing technology, and to provide a kind of novel height
The mixed flow constructed wetland of effect-biofiltration compound sewage processing unit.
Technical solution adopted by the utility model to solve the above technical problems is as follows:
A kind of mixed flow constructed wetland-biofiltration compound sewage processing unit comprising pond body and circulatory pool, described
It is respectively equipped with water inlet in the opposite two side walls of pond body and crosses the mouth of a river, circulatory pool side wall is equipped with water outlet；Pond body passed through
The mouth of a river is connected with circulatory pool；The pool bottom is filled with the water flowing anaerobism packing layer for being higher than water inlet and crossing the mouth of a river, in pond body
Several Aerobic Process for Treatment modules are installed above interior water flowing anaerobism packing layer, the side wall of the Aerobic Process for Treatment module is opened by lower part
The apertured partition in hole surrounds, and the inside modules above aperture segment are filled with aerobic packing layer, and the aperture segment of apertured partition is inserted
Enter and is fixed in the water flowing anaerobism packing layer；Kind is implanted with aquatic plant at the top of aerobic packing layer in the Aerobic Process for Treatment module of part
Object, remaining not planting aquatic plants；It is interconnected between water flowing anaerobism packing layer and aerobic packing layer, and is spread between two layers of filler
Equipped with the aeration tube being connected with blower, for being aerated to each Aerobic Process for Treatment module；Reflux is equipped in the circulatory pool
It pumps, is equipped with water distributor at the top of each Aerobic Process for Treatment module, the water distributor is connected with reflux pump.
Preferably, the thickness of the water flowing anaerobism packing layer should be greater than 0.5m, aerobic packing layer thickness be should be greater than
0.5m, overall thickness should be not less than 0.8m.
Preferably, the partial size of water flowing anaerobism packing layer is 3~10cm, described good in the water flowing anaerobism packing layer
0.5~2cm of oxygen packing layer partial size.
Preferably, filler is rubble or cobblestone in the water flowing anaerobism packing layer and aerobic packing layer.
Preferably, the aeration tube is boring aeration pipe.
Preferably, the water distributor is pressure drip irrigation pipe.
Preferably, the apertured partition is PVC partition.
Preferably, kind is implanted with the Aerobic Process for Treatment module of water plant and the Aerobic Process for Treatment module of non-planting aquatic plants,
It is uniformly interspersed in pond body plane, and is closely overlapped between adjacent block.
Preferably, kind is implanted in the Aerobic Process for Treatment module of water plant, soil horizon, water are equipped with above aerobic packing layer
Plant is planted in soil horizon.
Compared with prior art, utility model has the advantages that for current artificial wetland treatment inefficiency, accounting for
The problems such as ground area is excessive, biofilter dephosphorization low efficiency change the disadvantages of adaptability is small to water, and the utility model will be with life
Based on object filter tank, introduce two kinds of water flows of level stream and vertical current artificial swamp water process mode, combine artificial swamp with
The advantage of biological filter etc. has invented the biofilter with Wetland Function, has improved water treatment efficiency, reduces its occupied area.
The introduction of wetland plant, is of great significance for dephosphorization, can be replaced by plant harvest, matrix, easily remove sewage
In phosphorus, improve the removal efficiency of phosphorus.Modularization is carried out to wetland plant and its plantation filler, convenient for the replacement and plant of filler
The harvesting of object.
Detailed description of the invention
Fig. 1 mixed flow constructed wetland-biofiltration compound sewage processing unit structure schematic diagram；
Fig. 2 mixed flow constructed wetland-biofiltration compound sewage processing unit structural plan schematic diagram；
A-A diagrammatic cross-section in Fig. 3 Fig. 2；
Water distributor arrangement schematic diagram in Fig. 4 mixed flow constructed wetland-biofiltration compound sewage processing unit；
Aeration tube arrangement schematic diagram in Fig. 5 mixed flow constructed wetland-biofiltration compound sewage processing unit.
Appended drawing reference in figure: pond body 1, water inlet 2, water flowing anaerobism packing layer 3, aerobic packing layer 4, aeration tube 5, wetland are planted
Object 6, crosses the mouth of a river 8, blower 9, reflux pump 10, circulatory pool 11, water outlet 12, apertured partition 13 at water distributor 7.
Specific embodiment
The utility model is further elaborated and is illustrated with reference to the accompanying drawings and detailed description.In the utility model
The technical characteristic of each embodiment can carry out the corresponding combination under the premise of not conflicting with each other.
As shown in Figure 1, a kind of mixed flow constructed wetland of the utility model-biofiltration compound sewage processing unit,
Main structure is made of pond body 1 and circulatory pool 11.Pond body 1 is to carry out the main place of wastewater treatment, and inside is provided with people
Work wetland and biofiltration filler, and circulatory pool 11 is then to realize that the circulation of waste water improves hydraulic detention time and is arranged
's.It is respectively equipped with water inlet 2 in the left and right two side walls of 1 opposite face of pond body and crosses the mouth of a river 8, and 11 side wall of circulatory pool is equipped with
Water outlet 12, pond body 1 passed through the mouth of a river 8 and were connected with circulatory pool 11, and sanitary sewage to be processed enters pond body 1 from water inlet 2, so
Afterwards from the mouth of a river 8 is crossed into circulatory pool 11, finally it is discharged from water outlet 12.1 underfill of pond body has the water flowing anaerobism of certain altitude
Packing layer 3, water flowing anaerobism packing layer 3 is one layer of layer body as composed by granulated filler with certain permeable hole, high
Degree should be above water inlet 2 and cross the mouth of a river 8, and the sanitary sewage entered from water inlet 2 can be from this layer of filler with level stream
Mode promotes.The specific filler of water flowing anaerobism packing layer 3 can be rubble or cobblestone etc., and partial size is generally 3~10cm.Water flowing
There is no aeration facilities in anaerobism packing layer 3, therefore filler surface attachment is mainly anaerobe, and sanitary sewage is in the layer
In based on Anaerobic Treatment.Several Aerobic Process for Treatment modules, such as Fig. 2 are installed above the water flowing anaerobism packing layer 3 in pond body 1
Shown, modules need closely to overlap in 1 plane of pond body, as far as possible not there are allow water directly seep under gap.It needs to infuse
It anticipates, water inlet 2, the mouth of a river 8 and water outlet 12 excessively can not be seen under top view state, but open up for clarity in Fig. 2
Show its position in the plane, its position of opening is shown in the plan view, but actual aperture height need to be subject to Fig. 1.Afterwards
Continuous Figure 4 and 5 also use same treatment mode.
As shown in figure 3, Aerobic Process for Treatment module is divided into two types, the basic structure of two kinds of modules is similar, and difference is the
A kind of top needs planting aquatic plants 6, and another kind does not need planting aquatic plants 6.The side wall of Aerobic Process for Treatment module uses PVC
The apertured partition 13 of material surrounds, and the top half not aperture of apertured partition 13, lower half portion aperture can be permeable.Certainly, mould
In 4 side walls of block, it is only necessary under installation condition two piece apertured partition 13 apertures vertical with the water inlet direction of water inlet 2 be
Can, in addition two pieces of partitions can not also aperture with aperture.Inside modules above aperture segment are filled with aerobic packing layer 4,
Below aerobic packing layer 4 support can be carried out by modes such as partition, the sieves of hollow out.The aperture segment of apertured partition 13 is inserted into
It is fixed in the water flowing anaerobism packing layer 3 of lower section, the level stream sewage in packing layer can be directly through the aperture on partition.
The Aerobic Process for Treatment module of planting aquatic plants 6 is needed for the first kind, it is also necessary to which kind is implanted with aquatic plant at the top of aerobic packing layer 4
Object 6, therefore one layer of soil horizon has been laid in the present embodiment above aerobic packing layer 4,6 kinds of water plant are planted in soil horizon.
And the another kind of Aerobic Process for Treatment module for not needing planting aquatic plants 6, then paving soil is not needed, aerobic filler is directly stuffed entirely with
Layer 4.The specific filler of aerobic packing layer 4 can be rubble or cobblestone etc., and partial size is generally 0.5~2cm.Kind is implanted with water
The Aerobic Process for Treatment module of plant 6 and the Aerobic Process for Treatment module of non-planting aquatic plants 6, can uniformly hand in 1 plane of pond body
Thus mistake distribution forms the artificial swamp that cultivation has water plant in 1 upper surface of pond body.When sanitary sewage is pumped to pond body 1
When upper surface, part of contaminated water can quickly seep down in the Aerobic Process for Treatment module of not planting aquatic plants 6 along filler, go forward side by side and act charitably
Oxygen processing.And other part sewage then can be in the Aerobic Process for Treatment module of planting aquatic plants 6, first by 6 carry out portion of water plant
Divide the absorption of pollutant, the especially P elements in water that can largely be removed by adsorption by soil, root system absorption, then enters back into
Filler carries out Aerobic Process for Treatment.By this way, that is, it ensure that the circular treatment speed of sewage, but also organic matter, nitrogen, phosphorus can
Efficiently removed.Water plant is planted using modularization, convenient for periodic replacement.It is specific to select floristics view local environment and water
Matter index determines.
The bottom of aerobic packing layer 4 is needed through the aerobic environment inside aeration maintenance, therefore as shown in figure 5, anaerobism is filled out
The upper surface of the bed of material 3 needs to be laid with multiple rows of aeration tube 5, the interval of aeration tube 5 can according to the size of Aerobic Process for Treatment module and
Oxygen demand is adjusted, and is subject to the oxygen concentration requirement met in each module.Water flowing anaerobism packing layer 3 and aerobic packing layer 4
Between be interconnected, and the aeration tube 5 being connected with blower 9 is equipped between two layers of filler, for each Aerobic Process for Treatment mould
Block is aerated.Aeration tube 5 can use boring aeration pipe.Since apertured partition 13 is the anaerobism of 5 lower section of aeration tube to be inserted into
Packing layer, therefore apertured partition 13 is needed with can be for hole or fluting that aeration tube 5 passes through.It is certainly contemplated that aerobic
The replacement demand of processing module, apertured partition 13 can be set vertical fluting, and groove width is slightly larger than 5 outer diameter of aeration tube, it is with holes every
Plate 13 can be such that aeration tube 5 freely moves up and down in fluting when inserting or pull out anaerobism packing layer 3, and realization is quickly torn open
Dress.
The lower sewage seeped is collected in anaerobism packing layer 3 in each module, was then passed through the mouth of a river 8 and is entered circulatory pool 11.
But sanitary wastewater will realize qualified discharge, need certain hydraulic detention time, therefore one can be equipped in circulatory pool 11
Treated sewage is flowed back again using reflux pump 10 and continues circular treatment by reflux pump 10.Therefore, as shown in figure 4,
It needs to be equipped with a plurality of spaced water distributor 7 at the top of each Aerobic Process for Treatment module, then water distributor 7 and reflux pump 10
It is connected, water distributor 7 can use pressure drip irrigation pipe, and making sewage, slowly trickle irrigation is into two kinds of Aerobic Process for Treatment modules, arrangement spacing view
Depending on water and the effective cloth water area of drip irrigation pipe.
In order to meet the requirement of effluent quality, the thickness of water flowing anaerobism packing layer 3 should be greater than 0.5m, and aerobic packing layer 4 is thick
Situations such as degree should be greater than 0.5m, and overall thickness should be not less than 0.8m, and specific packing layer thickness regards hydraulic loading and water quality indicator determines.
Above-mentioned compound sewage processing unit, has organically combined the characteristic of artificial swamp and biofilter, that is, has solved people
The defects of work wetland variation low efficiency, excessive land occupation, while also overcoming biofilter and can not continue dephosphorization, water can not be adapted to
The problems such as fluctuation, so that its advantage for having both artificial swamp and biological filter.Moreover, having level stream and vertical current inside the device
Two kinds of water flows, can be such that sanitary sewage constantly flows between anaerobic environment, aerobic environment, and since filler has certain height
Degree, therefore anoxic zone can be formed from the region that farther away packing area or anaerobism sewage and aerobic sewage have a common boundary is aerated in part,
Further enhance the processing capacity to sewage.
Moreover, the aerobic filler with water plant is carried out modularized processing, easily adsorption saturation can be filled out
The replacement of material, can also be convenient for the harvesting of plant, and fast quick-recovery Aerobic Process for Treatment module is dropped at the pollutants such as organic matter, nitrogen, phosphorus
Solve absorbability.
Compound sewage treatment process based on above-mentioned apparatus, its step are as follows:
Sanitary sewage to be processed enters pond body 1 from water inlet 2, and passes through water flowing anaerobism packing layer in a manner of level stream
3, realize the preliminary treatment to sanitary sewage；The mouth of a river 8 was then passed through into circulatory pool 11, water distributor 7 is passed through by reflux pump 10
Be back in the artificial swamp of each Aerobic Process for Treatment module top, and in a manner of vertical current along Aerobic Process for Treatment module to flow down
Dynamic, fresh air is pumped into aeration tube 5 via blower 9 and is aerated, and makes flowing downward in air and Aerobic Process for Treatment module
Sanitary sewage is sufficiently mixed, and carries out decomposition absorption to dirty Organic substance in water by the aerobic microbiological that filler surface is adhered to, simultaneously
Utilize the phosphorus in the absorption removal sewage of 6 root system of water plant；The sanitary sewage flowed down in each Aerobic Process for Treatment module enters
It is mixed in water flowing anaerobism packing layer 3 with the sanitary sewage newly entered, is again introduced into circulatory pool 11；In sanitary sewage by repeatedly following
After ring, from 12 qualified discharge of water outlet.When filling adsorption saturation, processing capacity decline or plant need to harvest, can will get well
Oxygen processing module is taken out from pond body 1 and is replaced.
Above-mentioned compound sewage processing unit can be used in different sewage treatment projects, say below with reference to two embodiments
The concrete application scene and effect of the bright device.
Embodiment 1: newly-built sewage treatment project case study on implementation
Mixed flow constructed wetland-biofiltration compound sewage processing unit in the present embodiment is for creating sewage treatment work
Journey, including pond body 1, water inlet 2, water flowing anaerobism packing layer 3, aerobic packing layer 4, aeration tube 5, wetland plant 6, water distributor 7, mistake
The mouth of a river 8, blower 9, reflux pump 10, circulatory pool 11, water outlet 12, apertured partition 13.Its specific structure such as Fig. 1 and foregoing teachings institute
It states, repeats no more.The sanitary sewage that front end is collected directly enters from water inlet 2, and water flowing anaerobic layer is passed through in a manner of level stream
3, it realizes the preliminary treatment to sanitary sewage, then passed through the mouth of a river 8 into circulatory pool 11, filled out by reflux pump 10 by being distributed in
The water distributor 7 of material top layer is back in artificial swamp, is further processed in a manner of vertical current by aerobic packing layer, with
It is mixed, is returned in circulatory pool with the sanitary sewage flowed into from water inlet afterwards, thus repeatedly recycled.It is passed through in sanitary sewage
After crossing repeatedly circulation, from 12 qualified discharge of water outlet.Fresh air is pumped into aeration tube 5 via blower 9 and is aerated, and makes air
It is sufficiently mixed with sanitary sewage, the decomposition of dirty Organic substance in water is absorbed convenient for aerobic microbiological.
Embodiment 2: the engineered case of sanitary sewage artificial wetland treatment
Processing is transformed to existing artificial swamp engineering using the principle of the device of the utility model in the present embodiment,
Specific basic parameter is as follows:
Handle water: 5t/d hydraulic loading: 1m3·m-2·d-1
Influent quality: COD:30-300mg/L, NH3-N:15-60mg/L, TP:1-10mg/L, TN:20-100mg/L
Design effluent quality: COD:10-50mg/L, NH3- N:8-15mg/L, TP:0.5-2mg/L, TN:10-20mg/L
Sewage disposal system building:
The present embodiment includes with lower component:
1, sewage disinfection treatment unit: the A/O integration apparatus that the component is directly installed using original ENGINEERING POINT, at the equipment
Reason water is 5/d.
2, mixed flow constructed wetland-biological filter: circulation pool size: 0.55m × 2.25m × 1.4m；Original Manual moist
Ground size 2.15m × 2.25m × 1.4m, after transformation, pond body increases 20cm；Retain water flowing anaerobic layer packed height 1m in pond body,
The removal of remaining filler, increases aerobic layer filler 0.5m；Water flowing anaerobic layer filler is the rubble and cobblestone that partial size is greater than 3cm；It follows
Configured with an elevator pump as reflux pump in cisterna ambiens, for sewage pump to be back in filler pond body by sewage by water distributor；
A Fans are configured in artificial swamp, for supplying oxygen to pond body aerobic layer filler.Improved filter tank also form as Fig. 1~
Processing unit structure shown in 5, and existing facility is utilized and reduces cost of investment.
3, the method for operation: sanitary sewage enters from the inlet, and water flowing anaerobic layer is passed through in a manner of level stream, realizes to life
The preliminary treatment of sewage living, then passed through the mouth of a river into circulatory pool, and the water distributor for being distributed in filler top layer is passed through by reflux pump
It is back in filler pond, is further processed in a manner of vertical current by aerobic packing layer, is then flowed into from water inlet
Sanitary sewage mixed, return in circulatory pool, thus repeatedly recycled.In sanitary sewage after repeatedly recycling, from
Water outlet qualified discharge.Fresh air is pumped via blower and is aerated into aeration tube, is sufficiently mixed air with sanitary sewage,
The decomposition of dirty Organic substance in water is absorbed convenient for aerobic microbiological.
4, case illustrates: the engineering is used to handle the domestic sewage in rural areas at 20 family of periphery, and the sanitary sewage is via A/O one
It is delivered to the Compound filter pool that transformation is completed after changing equipment pretreatment, through being emitted into side irrigation canals and ditches by wet well after processing is up to standard.It should
Engineering brought into operation so far from November 18th, 2017, and after this meets filter tank processing, effluent quality can reach " town sewage
Treatment plant's pollutant emission standard " (GB18918-2002) level-one B standard.
Mixed flow constructed wetland-biofiltration compound sewage treatment process its advantages are embodied in:
1, two kinds of water flow modes of level stream and vertical current are carried out, and promote the utilization rate to Performance of Constructed Wetlands Substrates, are improved
Treatment effeciency reduces its occupied area.
2, by aerobic packing layer bottom place aeration tube be aerated in the way of, it is dense to promote oxygen in aerobic packing layer
Degree promotes microbial activity, improves treatment effeciency.
3, circulatory pool is set at water outlet, water outlet is repeatedly recycled, extends residence time of the sewage in pond body, mentions
Rise its treatment effeciency.
4, modularization is carried out to water plant and its plantation filler, convenient for adopting for the replacement of filler, the removal of phosphorus and plant
It receives.
Embodiment described above is a kind of preferable scheme of the utility model, and so it is not practical to limit
It is novel.Those of ordinary skill in related technical field can be in the case where not departing from the spirit and scope of the utility model
It makes a variety of changes and modification.Therefore all mode technical solutions obtained for taking equivalent substitution or equivalent transformation, all fall within
In the protection scope of the utility model.
Claims (9)
1. a kind of mixed flow constructed wetland-biofiltration compound sewage processing unit, which is characterized in that including pond body (1) and follow
Cisterna ambiens (11) is respectively equipped with water inlet (2) in the opposite two side walls of the pond body (1) and crosses the mouth of a river (8), circulatory pool (11)
Side wall is equipped with water outlet (12)；Pond body (1) passed through the mouth of a river (8) and was connected with circulatory pool (11)；Pond body (1) underfill
There are higher than water inlet (2) and cross the water flowing anaerobism packing layer (3) of the mouth of a river (8), the water flowing anaerobism packing layer (3) in pond body (1)
Top is equipped with several Aerobic Process for Treatment modules, and the side wall of the Aerobic Process for Treatment module is enclosed by the apertured partition (13) of lower part aperture
At the inside modules above aperture segment are filled with aerobic packing layer (4), and the aperture segment insertion of apertured partition (13) is described logical
It is fixed in water anaerobism packing layer (3)；Kind is implanted with water plant at the top of aerobic packing layer (4) in the Aerobic Process for Treatment module of part
(6), remaining not planting aquatic plants (6)；It is interconnected between water flowing anaerobism packing layer (3) and aerobic packing layer (4), and two layers
The aeration tube (5) being connected with blower (9) is equipped between filler, for being aerated to each Aerobic Process for Treatment module；Described
Reflux pump (10) are equipped in circulatory pool (11), are equipped with water distributor (7), the water distributor at the top of each Aerobic Process for Treatment module
(7) it is connected with reflux pump (10).
2. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
The thickness of the water flowing anaerobism packing layer (3) should be greater than 0.5m, and aerobic packing layer (4) thickness should be greater than 0.5m, and overall thickness is answered
Not less than 0.8m.
3. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
In the water flowing anaerobism packing layer (3), the partial size of water flowing anaerobism packing layer (3) is 3~10cm, the aerobic packing layer (4)
0.5~2cm of partial size.
4. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
Filler is rubble or cobblestone in the water flowing anaerobism packing layer (3) and aerobic packing layer (4).
5. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
The aeration tube (5) is boring aeration pipe.
6. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
The water distributor (7) is pressure drip irrigation pipe.
7. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
The apertured partition (13) is PVC partition.
8. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
Kind is implanted with the Aerobic Process for Treatment module of water plant (6) and the Aerobic Process for Treatment module of non-planting aquatic plants (6), flat in pond body (1)
It is uniformly interspersed on face, and is closely overlapped between adjacent block.
9. mixed flow constructed wetland according to claim 1-biofiltration compound sewage processing unit, which is characterized in that
Kind is implanted in the Aerobic Process for Treatment module of water plant (6), and soil horizon, water plant (6) kind are equipped with above aerobic packing layer (4)
It plants in soil horizon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458330.5U CN208980420U (en) | 2018-09-06 | 2018-09-06 | A kind of mixed flow constructed wetland-biofiltration compound sewage processing unit |
Applications Claiming Priority (1)
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