CN204211541U - The vertical marsh sewage treatment system of a kind of backflow - Google Patents
The vertical marsh sewage treatment system of a kind of backflow Download PDFInfo
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- CN204211541U CN204211541U CN201420493523.XU CN201420493523U CN204211541U CN 204211541 U CN204211541 U CN 204211541U CN 201420493523 U CN201420493523 U CN 201420493523U CN 204211541 U CN204211541 U CN 204211541U
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- 239000010865 sewage Substances 0.000 title claims abstract description 113
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 241000876443 Varanus salvator Species 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims description 20
- 230000000630 rising effect Effects 0.000 claims description 14
- 238000010992 reflux Methods 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000010169 landfilling Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 239000003651 drinking water Substances 0.000 abstract description 2
- 235000020188 drinking water Nutrition 0.000 abstract description 2
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- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000002352 surface water Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 16
- 239000007788 liquid Substances 0.000 description 9
- 238000006731 degradation reaction Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000006213 oxygenation reaction Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 244000099162 Cyperus alternifolius Species 0.000 description 3
- 239000000598 endocrine disruptor Substances 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000011109 contamination Methods 0.000 description 2
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- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000243 photosynthetic effect Effects 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical class [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
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- 238000009395 breeding Methods 0.000 description 1
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- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 230000000116 mitigating effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses the vertical marsh sewage treatment system of a kind of backflow.The utility model utilizes support vertical current constructed wetland, horizontal drowned flow artificial wet land and tank to be combined into vertical structure from top to bottom, water monitor is laid with the operation condition of controlled circulation pump at tank, realize the circular treatment of sewage, and rly. of arranging in pairs or groups is with regulating and controlling every batch sewage load and treatment time.The utility model compared with traditional artificial swamp, have that floor space is little, hydraulic load be large, less energy-consumption, easy to operate and quick removal pollutent advantage, its conventional water quality effluent index COD
cr, SS, TN, NH
4 +the concentration threshold (GB18918-2002) that ~ N limits far below municipal sewage treatment one-level A standard, water outlet pesticide concentration meets drinking water sanitary standard (GB5749-2006), water outlet heavy metal content reaches surface water II class water quality standard (GB3838-2002), the utility model also achieves the automatic business processing of artificial swamp class sewage, solves the problem of dirty Organic substance in water and nitrogen pollutant once-through artificial swamp poor removal effect.
Description
Technical field
The utility model relates to environmental engineering technical field of sewage, more specifically, relates to the vertical marsh sewage treatment system of a kind of backflow.
Background technology
Artificial swamp can submeter surface current and the large class of current wetland two.It is low that surface current artificial wetland builds working cost, and effectively can relax waterpower pollution load and impact, but floor space is large, designed breeding is inaccurate.Drowned flow artificial wet land divides again horizontal drowned flow and vertical subsurface flow, its fabrication cost comparatively surface current artificial wetland is high, but the synergy that can make full use of between the key elements such as Wetland Space performance plant, matrix and microorganism, improve the ability removing organic pollutant, wherein vertical current constructed wetland reoxygenation ability is stronger, nitrification is good, horizontal drowned flow artificial wet land is due to sewage horizontal flow under matrix, reoxygenation ability is poor, easy formation is based on the environment of anaerobion or amphimicrobe, and its denitrification is better.
The artificial swamp of single type often cannot reach water conditioning requirement, has therefore domesticly engendered various combined artificial swamp, to reducing floor space and improving contaminant removal efficiency.Application number be 200303157161.1 Chinese patent application disclose a kind of system and method for hybrid constructed wetland process of sewage, application number is that the Chinese patent application of 200310111813.X discloses a kind of municipal effluent combined artificial wetland denitrification and dephosphorization method, application number be 200620022790.4 Chinese patent application disclose a kind of combined artificial wetland, application number be 200710015966.3 Chinese patent application disclose a kind of undercurrent-surface current composite artificial marshland, application number be 200710164456.1 Chinese patent application disclose a kind of stereo artificial wetland system for sewage disposal, application number is that the Chinese patent application of 200810197811.X discloses composite vertical current artificial wetland oxygenation system, application number be 201110091785.4 Chinese patent application disclose multistage composite lotus root connection artificial wet land system and application thereof, application number is that the Chinese patent application of 201310721638.X discloses a kind of hybrid constructed wetland system and sewage water treatment method thereof, application number be 201320152135.0 Chinese patent application disclose multi-functional composite constructed wetland system, application number be 201410013794.5 Chinese patent application disclose combined artificial marsh sewage treatment system etc.But system disclosed in above-mentioned document is only confined to carry out combined serial to dissimilar artificial swamp on horizontal structure, the problem that actual solution wetland floor space is large, and all cannot reach the object removing pollutent fast, its hydraulic detention time is often beyond more than 1d, greatly reduce the processing efficiency of sewage, wetland configuration even due to series connection is too much, causes difficult management, requires higher to labor management.
Artificial swamp is better to the removal effect of ammonia-state nitrogen pollutent, but not satisfactory to the removal effect of nitrate nitrogen contaminants, even in negative removal efficiency, finally causes the removal efficiency of total nitrogen low.Publication number be 101423297 Chinese patent application disclose a kind of composite vertical current artificial wetland oxygenation system, the method carries out intermittent aeration by arranging evacuated tube bottom vertical current constructed wetland, create the aerobic envrionment conditions alternately changed with anaerobism, but this system needs the ratio aeration rate of manual shift air compressor and manual start-stop, the comparatively loaded down with trivial details and plant running parameter of regular job not easily regulates.How while the high denitrification effect of guarantee, the automatic operating of implement device and simple and convenient management problem are the important directions of this area technical barrier that will solve and research.
Artificial wetland effluent backflow effectively can improve the removal efficiency of pollutent, application number is that the Chinese patent application of 200310111813.X discloses municipal effluent combined artificial wetland denitrification and dephosphorization method, application number be 201120098642.1 Chinese patent application disclose artificial wetland outflow water backflow device, application number be 201410013794.5 Chinese patent application disclose combined artificial marsh sewage treatment system etc.But the above-mentioned wet land technique relating to artificial wetland effluent backflow is all recycle pump is placed in the operating mode constantly run and draw water, its electric energy loss is more, the work-ing life of recycle pump is not long, how to control the operational conditions of reflux pump to reduce energy consumption cost, and the removal effect reaching the best is another technical barrier that this area will solve.
In addition, along with trace toxic pollutent as agricultural chemicals, medicine and endocrine disrupter etc. in water body environment detect frequency and concentrations constantly raises, cause toxic effect and inrichment that people have this pollutant, and showing great attention to aquatic ecosystem structure and function stabilizing influence.Artificial swamp is as a kind of novel ecological sewage treatment technology, be used widely in the water treatment of China, but compared with external progress, in domestic efficiency and the mechanism stage being still in research artificial swamp removal Conventional pollution, the artificial wetland process removing trace toxic pollutent about artificial swamp not yet has report.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, there is provided one can automatic operating, can directly processing primary live sewage, and COD, total nitrogen and trace toxic pollutent can be removed fast, save the vertical marsh sewage treatment system of backflow of floor space and minimizing energy consumption, while the high denitrification effect of guarantee, the automatic operating of implement device and easy management.
The utility model object is achieved by the following technical programs:
There is provided a kind of backflow vertical marsh sewage treatment system, comprise vertical current constructed wetland, horizontal drowned flow artificial wet land, tank, recycle pump and operation control system, utilize support vertical current constructed wetland, horizontal drowned flow artificial wet land and tank to be combined into vertical structure from top to bottom;
Described vertical current constructed wetland inside filling filler, filling surface plantation emergent, vertical current constructed wetland is provided with water distributor, one end of water distributor connects recycle pump, recycle pump connects tank, and lay header bottom vertical current constructed wetland, the water outlet of vertical current constructed wetland is located at bottom wetland, the side of water outlet connects header, and opposite side connects the water distributor of horizontal drowned flow artificial wet land;
Described horizontal drowned flow artificial wet land inside filling filler, horizontal drowned flow artificial wet land lays water distributor, water distributor connects described vertical current constructed wetland header, header is laid bottom horizontal subsurface flow wetland, the mouth of a river is set out bottom wetland, water outlet side connects header, and opposite side is connected with tank;
Described tank one side bottom is provided with outlet pipeline, outlet pipeline connecting tee, and threeway side connects recycle pump, and opposite side connects rising pipe; The opposite side of tank lays suction culvert;
Described operation control system comprises water monitor, rly. and electromechanical box, described water monitor is laid in described tank, described rly. is laid on suction culvert and outlet pipeline respectively, and described rly. is electrically connected with electromechanical box and controls by electromechanical box.
Preferably, the water distributor of described horizontal drowned flow artificial wet land is laid in the surface of the horizontal drowned flow artificial wet land being positioned at the same side with the water outlet of vertical current constructed wetland, and the medium position of water distributor connects the rising pipe of upper vertical artificial wetland header; Header is laid bottom the wetland of horizontal subsurface flow wetland side relative to its water distributor; Water outlet is arranged at the wetland bottom center place with header the same side.
Preferably, the structure of described vertical current constructed wetland inside filling filler is filling gravel and haydite two kinds of fillers, its cobble-stone upper, haydite under; The loading height ratio of described two kinds of fillers is 1:1.
Preferably, the planting density of described emergent is 12 strains/m
2.
Preferably, described horizontal drowned flow artificial wet land filling filler is gravel.
Preferably, described vertical current constructed wetland underdrain pipe is " matrix pattern "; The water outlet of vertical current constructed wetland is located at the wetland lower center position that wetland and water distributor enter wetland one end opposite side.Further preferably, the symmetrical 45° angle perforate of described header two bottom sides, position of opening interval 5cm, aperture is 0.5cm.
Preferably, the first connecting tee of opposite side of the water outlet of described vertical current constructed wetland, the side of threeway connects valve, and the opposite side of threeway connects the water distributor of horizontal drowned flow artificial wet land.
Preferably, the first connecting tee of opposite side of the water outlet of described horizontal drowned flow artificial wet land, threeway side connects a valve, and threeway opposite side connecting water pipe, water pipe arranges valve, and is connected with tank.Preferably, further described threeway opposite side connecting water pipe is " day font " water pipe, and the water pipe place of the intermediate lateral part of water pipe arranges valve, and the water pipe of " day font " side longitudinal component connects tank; Further preferably, the symmetrical 45° angle perforate of two bottom sides of the water distributor of described horizontal drowned flow artificial wet land, pitch of holes is 5cm, and aperture is 0.5cm, the symmetrical 45° angle perforate of header two bottom sides, and pitch of holes is 5cm, and aperture is 0.5cm.
Further preferably, length and width, the horizontal drowned flow artificial wet land of described vertical current constructed wetland are identical with the length and width of tank, the utility model provides a kind of typical specifications design to be: the length and width of the length and width of described vertical current constructed wetland, horizontal drowned flow artificial wet land and tank are respectively 80cm and 60cm, but the aspect ratio horizontal drowned flow artificial wet land of vertical current constructed wetland and tank height 15cm, for 65cm, this can not overflow to guarantee that sewage is recycled after pump is evacuated to vertical current constructed wetland fast better.
The water distributor design of preferred vertical current constructed wetland be connect to connect again after the water pipe place of recycle pump connects a threeway two curved logical, when the water level in tank arrives high liquid level place, recycle pump is started working, in 2 ~ 3 minutes, sewage is evacuated to low liquid level place, the water level of vertical current constructed wetland inside is made to exceed stromal surface 10 ~ 20cm, regulate the rising pipe valve of vertical current constructed wetland, ooze under sewage is quick and flow to horizontal drowned flow artificial wet land surface by header.
Based on the utility model system, the vertical wet land sewage treating process of a kind of backflow can be realized, comprise the following steps:
S1. vertical current constructed wetland, horizontal drowned flow artificial wet land and tank are combined into vertical Sewage treatment systems from top to bottom; Vertical current constructed wetland, horizontal drowned flow artificial wet land are connected with water distributor by header with tank;
Described vertical current constructed wetland bottom arranges filler, filling surface planting plants; Described horizontal drowned flow artificial wet land arranges filler;
S2. sewage draws water from tank by recycle pump, the oxygenation to sewage is realized in the process of being drawn water by single, plant absorption in vertical current constructed wetland, the nutritive substance in absorption effluent after sewage extraction, and by photosynthetic oxygen evolution, oxygenation is carried out to water body, reduce the organic loading of sewage, filler in vertical current constructed wetland retains, the suspended particulate in absorption effluent and the heavy metal in sewage and difficult degradation class material, NH
4 +~ N is converted into NO
2 -~ N and NO
3 -~ N; Then, sewage through the further adsorption of horizontal drowned flow artificial wet land, the NO in sewage
2 -~ N and NO
3 -~ N changes into nitrogen;
S3. sewage iterates through described vertical Sewage treatment systems and finally realizes the up to standard of effluent quality;
Wherein, described vertical Sewage treatment systems is Automated condtrol, the implementation method of described Automated condtrol is: by startup and the closedown of monitoring water level controlled circulation pump, realize the circular treatment of sewage, regulate single batch of sewage load and treatment time by Control.
Preferably, described gravel specification ε=0.4 ~ 0.5, described haydite specification ε=0.5 ~ 0.6.
Preferably, plant described in S1 is emergent, and the density of plantation emergent is 12 strains/m
2.Further preferably, described emergent selects cyperus alternifolius.
Preferably, described gravel specification ε=0.4 ~ 0.5.
Optional Automated condtrol implementation method is: in tank, lay water monitor, and setting high liquid level is 40cm, and low-water level is 10cm.By rly., tank outlet pipeline rly. working hour t is set
1, time t
1ensure that the sewage processed in tank can be disposed to the minimum level place of rising pipe, suction culvert rly. working hour t is set
2, time t
2ensure that amount of inlet water reaches the high liquid level place of setting; T is set
1and t
2interval time be t
3, time t
3for sewage enters the time of circular treatment.
Manual unlocking switch, the rly. on outlet pipeline takes the lead in work, working time t
1after end, system closes the rly. on outlet pipeline automatically, automatically opens the rly. on suction culvert, t when running simultaneously
2after end, device will no longer be intake, and recycle pump starts intermittent automatically to run, sewage enter circular treatment state until working time t
3terminate, single batch of sewage disposal time t=t
1+ t
2+ t
3.
Preferably, described time t
3be 300 ~ 360min.Further preferably, described time t
3for 330min.
The flow velocity of sewage in the vertical wet field facilities for treating sewage of return-flow type controls by the valve of the valve and horizontal drowned flow artificial wet land rising pipe that regulate vertical current constructed wetland rising pipe, coutroi velocity ensures that pollutent is fully degraded and necessary effluent cycle number of times smoothly, finally ensures removal effect.
The removal process of the vertical wet field facilities for treating sewage of return-flow type to pollutent mainly comprises, and realizes the oxygenation to sewage, improve the biodegradability of sewage in the process that recycle pump draws water at single; Plant absorption in vertical current constructed wetland, the nutritive substance in absorption effluent, and by photosynthetic oxygen evolution, oxygenation is carried out to water body, reduce the organic loading of sewage; Suspended particulate in the gravel matrix entrapment sewage of top layer; Because haydite specific surface area is comparatively large, be beneficial to microorganism growth, when oozing to haydite layer under sewage, the ammonia nitrogen class material in sewage and the effect of organism generation Quick Oxidation, NH
4 +~ N is to NO
2 -~ N and NO
3 -~ N transforms, and oxidation operation forms carbonic acid gas; In addition due to the adsorption of gravel and haydite, the heavy metal in sewage and difficult degradation class material all can effectively be removed, and at horizontal drowned flow artificial wet land, further adsorption will occur these pollutents; The NO transformed in vertical current constructed wetland
2 -~ N and NO
3 -denitrification is there is and changes into nitrogen in ~ N under the environment based on amphimicrobe of horizontal drowned flow artificial wet land; Sewage iterates through the vertical wet field facilities for treating sewage of return-flow type thus finally realizes the up to standard of effluent quality.
The beneficial effects of the utility model are as follows:
The vertical marsh sewage treatment system of the utility model ingehious design, and can scientifically organically combine with autocontrol method, design is simple and clear, and operational management is simple.The structure design of the utility model coupling system, electromechanical box is utilized to manipulate the switch of rly., the turnover discharge of automatic control sewage, utilize water monitor to realize recycle pump to open and close automatically by phased manner simultaneously, adopt the operation scheme of single batch of sewage disposal and intermittent pump around circuit sewage, thoroughly automatic operating can be realized after the completion of bed rearrangement device, the turnover discharge of automatic control sewage, utilize water monitor to realize recycle pump to open and close automatically by phased manner simultaneously, whole sewage treatment process is without the need to manual operation, thoroughly realize automatization and intelligent operation, and effectively reduce energy consumption, continuously-running, except running debugging early stage, daily without the need to labor management.
Compared with the combined artificial wet land system of Present Domestic, vertical current constructed wetland, horizontal drowned flow artificial wet land and tank are creatively connected by the utility model on vertical space, efficiently and effectively decreases the floor space of wetland, reduce energy consumption, the speed of its denitrogenation and degradation of organic substances and efficiency are all better than domestic combined artificial swamp, the ability that the utility model device removes pollutent is stronger, and its simple structure, dispersion treatment raw waste water can be used it for, be adapted at applying in the community of city and country.
Adopt haydite and gravel as filler in the vertical wet field facilities for treating sewage of backflow described in the utility model, two kinds of fillers are all cheap and easy to get.The filling kind that this area routine uses is more, the utility model contrasts in conjunction with great many of experiments by carefully analyzing research, adopt haydite and gravel two kinds of fillers as combination, and be optimized in filling structure, the complementation of effective both performances and synergism, obtain beyond thought good result.Play the feature that haydite specific surface area is large, ensure the effect of microorganism colonization, can COD, BOD in fast degradation sewage
5, NH
4 +~ N and organism, and the hydrophobic organism of energy strong adsorption, and due to haydite light weight, itself and gravel are pressed on gravel bottom with the ratio of packing height 1:1; SS in gravel bed effectively catching sewage, for the growth of plant provides rigid condition, will carry out Ammonia Nitrification effect fast and organic matter degradation process in vertical current constructed wetland inside.The utility model, around the header of horizontal drowned flow artificial wet land, selects the larger gravel of particle diameter to prevent the blocking of header, and be conducive to wetland inside and form environment based on amphimicrobe, raising device is to NO
3 -the removal ability of ~ N, sewage will alternately be with the environment of aerobic microbiological and amphimicrobe in the process flowing through device.
The vertical marsh sewage treatment system of backflow described in the utility model has higher hydraulic load, can effectively prevent wetland inside from blocking.Adopt the utility model system, summed up by the attenuation change of monitoring each pollutent and show that every batch of sewage disposal time is the best removal effect that about 6h can reach pollutent, this device device continuously-running, can process 4 batches of sewage every day.
The utility model system can be advantageously applied to process high cod values and high NH4+-N value waste water control aspect, the sewage include but not limited to sanitary sewage, the sewage by pesticidal contamination, the sewage by heavy metal contamination, polluting by microbiotic and/or endocrine disrupter, effectively can remove the trace toxic pollutent in polluted-water, as agricultural chemicals, medicine, endocrine disrupter and heavy metal etc.
Accompanying drawing explanation
Fig. 1 is the vertical wet field facilities for treating sewage structural representation of return-flow type of utility model.
Fig. 2 is horizontal drowned flow artificial wet land left view.
Embodiment
The utility model embodiment accompanying drawing, only for exemplary illustration, can not be interpreted as restriction of the present utility model.In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.Below in conjunction with drawings and Examples, the technical solution of the utility model is described further.
Embodiment 1
Reflux vertical wet field facilities for treating sewage structural representation as shown in Figure 1 described in the present embodiment, comprise that upper vertical artificial wetland 3, middle layer horizontal drowned flow artificial are wet 2, bottom tank 1, recycle pump 4 and electromechanical box 12, utilize support 18 vertical current constructed wetland 3, horizontal drowned flow artificial wet land 2 and tank 1 to be combined into vertical structure from top to bottom.
The inside filling gravel 7 of described vertical current constructed wetland 3 and haydite 8, gravel 7 is upper, haydite 8 under, gravel 7 surface grafting cyperus alternifolius 6, vertical current constructed wetland 3 is provided with water distributor 9, one end of water distributor 9 connects recycle pump 4, recycle pump 4 connects tank 1, lays header 10 bottom vertical current constructed wetland 3, and the water outlet of vertical current constructed wetland is located at bottom wetland, the side of water outlet connects header 10, and opposite side connects a threeway; The side of threeway connects valve, and the bottom of threeway connects the water distributor 12 of horizontal drowned flow artificial wet land;
Described horizontal drowned flow artificial wet land 2 inside filling gravel 7, horizontal drowned flow artificial wet land 2 lays water distributor 12, water distributor 12 connects described vertical current constructed wetland header 10, lays header 11 bottom horizontal subsurface flow wetland 2, sets out the mouth of a river bottom wetland 2, water outlet side connects header 11, opposite side connects a threeway, and threeway side connects a valve, the top connecting water pipe of threeway, water pipe arranges valve, and is connected with tank 1;
Described tank 1 one side bottom is provided with outlet pipeline, outlet pipeline connecting tee, and threeway side connects recycle pump 4, and opposite side connects rising pipe 13; The opposite side of tank 1 lays suction culvert 14; Lay water monitor 5 in described tank 1, described suction culvert and outlet pipeline lay rly. 15, rly. 15 controls by electromechanical box 16.In Fig. 1, arrow is the flow direction signal of sewage in the vertical wet field facilities for treating sewage of return-flow type.
For convenience of explanation, the present embodiment provides following design specification further: the length, width and height of upper vertical artificial wetland 3 are respectively 80cm, 60cm, 65cm, the length, width and height of middle layer horizontal drowned flow artificial wet land 2 are respectively 80cm, 60cm, 50cm, and the length, width and height of bottom tank 1 are respectively 80cm, 60cm, 50cm.The aspect ratio horizontal drowned flow artificial wet land of vertical current constructed wetland and tank height 15cm, can guarantee that sewage is recycled after pump is evacuated to vertical current constructed wetland fast better can not overflow.Vertical structure is combined under the support of Steel Bracket 18, the size of three pond bodies can carry out suitably mitigation and amplification according to the ratio of its length, width and height, header is constructed with water distributor to be connected three pond bodies with pvc pipe (Ф 32mm), by startup and the closedown of water monitor 5 controlled circulation pump 4, realize the circular treatment of sewage, and rly. 15 of arranging in pairs or groups is with regulating and controlling single batch of sewage load and treatment time, the operating mode of rly. 15 and recycle pump 4 controls by electromechanical box 16.
Described vertical current constructed wetland 3 effectively can remove SS, COD, BOD in sewage
5and NH
4 +-N, its inner filling gravel 7(ε=0.4 ~ 0.5) and haydite 8(ε=0.5 ~ 0.6), filling-material structure is that gravel is upper, haydite under, the loading height of two kinds of fillers is all 20cm, adopt haydite and gravel two kinds of fillers as combination, the complementation both effectively playing and synergism, obtain beyond thought good result.Play the feature that haydite specific surface area is large, ensure the effect of microorganism colonization, can COD, BOD in fast degradation sewage
5, NH
4 +~ N and organism, and the hydrophobic organism of energy strong adsorption, and due to haydite light weight, itself and gravel are pressed on gravel bottom with the ratio of packing height 1:1; SS in gravel bed effectively catching sewage, for the growth of plant provides rigid condition, will carry out Ammonia Nitrification effect fast and organic matter degradation process in vertical current constructed wetland inside.At gravel surface grafting cyperus alternifolius 6(12 strain/m
2), the water distributor 9 of vertical current constructed wetland is the water pipe connecting recycle pump 4, connect a threeway, threeway both sides respectively connect one curved logical, " matrix pattern " header 10 is laid bottom vertical current constructed wetland 3, the symmetrical 45° angle perforate of header 10 two bottom sides, position of opening interval 5cm, aperture is 0.5cm, the water outlet of vertical current constructed wetland is located at body bottom right side middle position, pond, and left side connects header, and right side connects a threeway, the right side of threeway connects valve, and bottom connects the water distributor 12 of horizontal drowned flow artificial wet land.Described horizontal drowned flow artificial wet land 2 effectively can remove SS, COD, BOD in sewage
5and NO
3 --N, its inner filling gravel 7(ε=0.4 ~ 0.5), loading height is 40cm, is conducive to wetland inside and forms amphimicrobian environment, improve device to NO
3 -the removal ability of-N, sewage alternately will enter aerobic and amphimicrobian environment in the process flowing through device.The right lateral surface of horizontal drowned flow artificial wet land lays water distributor 12, the medium position of water distributor 12 connects the rising pipe of upper vertical artificial wetland 3 header 10, the symmetrical 45° angle perforate of water distributor 12 two bottom sides, pitch of holes is 5cm, aperture is 0.5cm, horizontal subsurface flow wetland 2 left bottom lays header 11, the symmetrical 45° angle perforate of header two bottom sides, pitch of holes is 5cm, aperture is 0.5cm, in pond, body left bottom centre sets out the mouth of a river, header is connected on the right side of water outlet, left side connects a threeway, a valve is connected on the left of threeway, top connects " day font " water pipe 11, horizontal subsurface flow wetland 2 left view as shown in Figure 2.At intermediate lateral water pipe, place arranges valve, the longitudinal water pipe access in right side tank 1.Described tank 1 connects pvc pipe in the bottom 5cm place perforate of left side central portion distance, connect with threeway, it is 370W that left side connects recycle pump 4(power), other one connects rising pipe 13, a water inlet pipe 14 is laid on the right side of tank 1, in tank, lay water monitor 5 in addition, setting high-water is 40cm, and low-water level is 10cm.The water yield of each extracting sewage of recycle pump 4 accounts for 4/5 of sewage total amount.The suction culvert 14 and outlet pipeline 13 of tank 1 lay rly. 15, and rly. 15 controls by electromechanical box 16, and the principle of work of rly. 15 is that sewage is by pipeline after powered up, and namely deenergization sewage be plugged.When the water level in tank 1 arrives high liquid level place, recycle pump 4 is started working, in 2 ~ 3 minutes, sewage is evacuated to low liquid level place, the water level of vertical current constructed wetland inside is made to exceed stromal surface 10 ~ 20cm, regulate the rising pipe valve of vertical current constructed wetland, ooze under sewage is quick and flow to horizontal drowned flow artificial wet land surface by header.
Electromechanical box 16 sets out water lines rly. 15 working hour t
1=22 min, (time t
1need ensure that the sewage processed in tank 1 can be disposed to the minimum level place of rising pipe 11); Suction culvert rly. 15 working hour t is set
2=8 min, (time t
2need ensure that amount of inlet water can reach high liquid level place, i.e. 40cm place); The interval time arranging rly. 15 liang of tasks is t
3=330 min, (time t
3according to the time point that pollutant removal is best);
S2 is manual unlocking electromechanical box 16 switch first, rly. 15 on outlet pipeline takes the lead in work, need ensure that the sewage processed in tank 1 can be disposed to the minimum level place of rising pipe, after terminating working time, system closes the rly. 15 on outlet pipeline automatically, automatically open the rly. 15 on suction culvert simultaneously, need ensure that amount of inlet water can reach high liquid level place, water level in tank arrives high-water, connect recycle pump 4 power supply, recycle pump 4 automatically by sewage extracting to upper strata vertical current constructed wetland 3, in tank 1, water level drops to low-water level place, recycle pump 4 power supply disconnects, sewage flows into tank 1 from top to bottom after vertical current constructed wetland 3 and horizontal drowned flow artificial wet land 2, this working cycle is repeated when water level reaches high liquid level place.
Working time: manual unlocking electromechanical box 16 switch, the rly. 15 on outlet pipeline takes the lead in work, working time t
1after end, system closes the rly. 15 on outlet pipeline automatically, automatically opens the rly. 15 on suction culvert, t when running simultaneously
2after end, device will no longer be intake, and recycle pump 4 starts intermittent automatically to run, sewage enter circular treatment state until working time t
3terminate.
Single batch of sewage disposal time t=t
1+ t
2+ t
3=360 min.
T
3during=330 min, return-flow type vertical wet land sewage treating process Inlet and outlet water water quality and elimination capacity are recorded in table 1.
Table 1 return-flow type vertical wet land sewage treating process Inlet and outlet water water quality and elimination capacity
Note: n=14, every batch processed sewage 250L, the treatment time is 6h, can process 4 batches of sewage every day.
Adopt the utility model system, summed up by the attenuation change of monitoring each pollutent and show that every batch of sewage disposal time is the best removal effect that about 4h can reach pollutent, this device continuously-running, can process 3 batches of sewage every day.The conventional water quality effluent index COD of the present embodiment
cr, SS, TN, NH
4 +the concentration threshold (GB18918-2002) that ~ N limits far below municipal sewage treatment one-level A standard, water outlet pesticide concentration meets drinking water sanitary standard (GB5749-2006), and water outlet heavy metal content reaches surface water II class water quality standard (GB3838-2002).Present system compact construction is reasonable, operational management is simple, electromechanical box is utilized to manipulate the switch of rly., the turnover discharge of automatic control sewage, utilize water monitor to realize recycle pump to open and close automatically by phased manner, whole sewage treatment process, without the need to manual operation, thoroughly realizes automatization and intelligent operation simultaneously, and effectively reduce energy consumption, continuously-running.
Claims (10)
1. the vertical marsh sewage treatment system of backflow, it is characterized in that, comprise vertical current constructed wetland, horizontal drowned flow artificial wet land, tank, recycle pump and operation control system, utilize support vertical current constructed wetland, horizontal drowned flow artificial wet land and tank to be combined into vertical structure from top to bottom;
Described vertical current constructed wetland inside filling filler, filling surface plantation emergent, vertical current constructed wetland is provided with water distributor, one end of water distributor connects recycle pump, recycle pump connects tank, and lay header bottom vertical current constructed wetland, the water outlet of vertical current constructed wetland is located at bottom wetland, the side of water outlet connects header, and opposite side connects the water distributor of horizontal drowned flow artificial wet land;
Described horizontal drowned flow artificial wet land inside filling filler, horizontal drowned flow artificial wet land lays water distributor, water distributor connects described vertical current constructed wetland header, header is laid bottom horizontal subsurface flow wetland, the mouth of a river is set out bottom wetland, water outlet side connects header, and opposite side is connected with tank;
Described tank one side bottom is provided with outlet pipeline, outlet pipeline connecting tee, and threeway side connects recycle pump, and opposite side connects rising pipe; The opposite side of tank lays suction culvert;
Described operation control system comprises water monitor, rly. and electromechanical box, described water monitor is laid in described tank, described rly. is laid on suction culvert and outlet pipeline respectively, and described rly. is electrically connected with electromechanical box and controls by electromechanical box.
2. reflux vertical marsh sewage treatment system according to claim 1, it is characterized in that, the water distributor of described horizontal drowned flow artificial wet land is laid in the surface of the horizontal drowned flow artificial wet land being positioned at the same side with the water outlet of vertical current constructed wetland, and the medium position of water distributor connects the rising pipe of upper vertical artificial wetland header; Header is laid bottom the wetland of horizontal subsurface flow wetland side relative to its water distributor; Water outlet is arranged at the wetland bottom center place with header the same side.
3. reflux vertical marsh sewage treatment system according to claim 1, it is characterized in that, the structure of described vertical current constructed wetland inside filling filler is filling gravel and haydite two kinds of fillers, its cobble-stone upper, haydite under; The loading height ratio of described two kinds of fillers is 1:1.
4. reflux vertical marsh sewage treatment system according to claim 1, it is characterized in that, the planting density of described emergent is 12 strains/m
2.
5. reflux vertical marsh sewage treatment system according to claim 1, it is characterized in that, described horizontal drowned flow artificial wet land filling filler is gravel.
6. reflux vertical marsh sewage treatment system according to claim 1, it is characterized in that, described vertical current constructed wetland underdrain pipe is " matrix pattern "; The water outlet of vertical current constructed wetland is located at the wetland lower center position that wetland and water distributor enter wetland one end opposite side.
7. reflux vertical marsh sewage treatment system according to claim 6, it is characterized in that, the symmetrical 45° angle perforate of described header two bottom sides, and position of opening interval 5cm, aperture is 0.5cm.
8. reflux vertical marsh sewage treatment system according to claim 1, it is characterized in that, the first connecting tee of opposite side of the water outlet of described vertical current constructed wetland, the side of threeway connects valve, and the opposite side of threeway connects the water distributor of horizontal drowned flow artificial wet land;
The first connecting tee of opposite side of the water outlet of described horizontal drowned flow artificial wet land, threeway side connects a valve, and threeway opposite side connecting water pipe, water pipe arranges valve, and is connected with tank.
9. reflux vertical marsh sewage treatment system according to claim 8, it is characterized in that, described threeway opposite side connecting water pipe is " day font " water pipe, and the water pipe place of the intermediate lateral part of water pipe arranges valve, and the water pipe of " day font " side longitudinal component connects tank.
10. reflux vertical marsh sewage treatment system according to claim 8, it is characterized in that, the symmetrical 45° angle perforate of two bottom sides of the water distributor of described horizontal drowned flow artificial wet land, pitch of holes is 5cm, aperture is 0.5cm, the symmetrical 45° angle perforate of header two bottom sides, pitch of holes is 5cm, and aperture is 0.5cm.
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|---|---|---|---|
| CN201420493523.XU CN204211541U (en) | 2014-08-29 | 2014-08-29 | The vertical marsh sewage treatment system of a kind of backflow |
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396104A (en) * | 2016-11-25 | 2017-02-15 | 上海应用技术大学 | High-efficient nitrogen removal type vertical flow artificial wetland and construction method thereof |
| CN107063632A (en) * | 2017-05-23 | 2017-08-18 | 江西省水利科学研究院 | A kind of lower vertical undercurrent exchange test device in riverbed of fluctuation pressure driving and preparation method thereof |
| CN110921833A (en) * | 2019-12-26 | 2020-03-27 | 暨南大学 | Sewage treatment system and method for strengthening anaerobic ammonia oxidation denitrification and phosphorus removal of domestic sewage |
-
2014
- 2014-08-29 CN CN201420493523.XU patent/CN204211541U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396104A (en) * | 2016-11-25 | 2017-02-15 | 上海应用技术大学 | High-efficient nitrogen removal type vertical flow artificial wetland and construction method thereof |
| CN107063632A (en) * | 2017-05-23 | 2017-08-18 | 江西省水利科学研究院 | A kind of lower vertical undercurrent exchange test device in riverbed of fluctuation pressure driving and preparation method thereof |
| CN107063632B (en) * | 2017-05-23 | 2023-04-28 | 江西省水利科学院(江西省大坝安全管理中心、江西省水资源管理中心) | Experimental method of river bed vertical subsurface flow exchange test device driven by periodic pulsating pressure |
| CN110921833A (en) * | 2019-12-26 | 2020-03-27 | 暨南大学 | Sewage treatment system and method for strengthening anaerobic ammonia oxidation denitrification and phosphorus removal of domestic sewage |
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