CN104150595B - A kind of overland flow biological treatment system and processing method - Google Patents
A kind of overland flow biological treatment system and processing method Download PDFInfo
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- CN104150595B CN104150595B CN201410360015.9A CN201410360015A CN104150595B CN 104150595 B CN104150595 B CN 104150595B CN 201410360015 A CN201410360015 A CN 201410360015A CN 104150595 B CN104150595 B CN 104150595B
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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
A kind of overland flow biological treatment system, is mainly made up of unpowered biological rotating disk-biofilter integrated apparatus, overland flow artificial swamp and nanometer aeration ablating device. The invention also discloses the method for utilizing said system to carry out sewage disposal.
Description
Technical field
The present invention relates to a kind of overland flow biological treatment system, relate to particularly one and prevent Manual moistGround sewage-treatment plant stops up the also system of advanced treating.
The invention still further relates to the method for utilizing said system to dispose of sewage.
Background technology
Overland flow is controlledly discharged into waste water on soil by modes such as sprinkling or gravity flows, on groundConventionally sowing plant perches for microorganism and prevents that soil is washed loss. Sewage flows down along slope, and onePart is infiltrated in soil, has on a small quantity and evaporates, and all the other inflows collect ditch. Sewage in flow process,Suspended solid is filtered, and organic matter is degraded by the microbiological oxidation on grass and in upper soll layer, and promotesThe growth of plant, this method is mainly for the treatment of the organic wastewater of high concentration, as the waste water of canneryAnd municipal sewage.
Pollutant in overland flow Constructed Wetland For Purifying usefulness waste water is logical in land treatment systemCross that various procedures perhaps removes, comprise that the filtration of soil is held back, the absorption of physics and chemistry, chemistry pointPicked-up, microbiological oxidation degraded and the evaporation etc. of solution and precipitation, plant and microorganism.
Summary of the invention
The object of the present invention is to provide a kind of overland flow biological treatment system.
Another object of the present invention is to provide a kind of method of utilizing said system to dispose of sewage.
For achieving the above object, overland flow biological treatment system provided by the invention, mainly moving by nothingPower biological rotating disk-biofilter integrated apparatus, overland flow artificial swamp and nanometer aeration ablating deviceComposition; Wherein:
Unpowered biological rotating disk-biofilter integrated apparatus includes elevated tank;
Unpowered waterwheel is coaxial with a waterwheel gear, and the periphery of this waterwheel gear is provided with bucket, bucket positionIn the delivery port of elevated tank;
In the haptoreaction groove of unpowered biological rotating disk-biofilter integrated apparatus, be provided with many group rowsThe biological rotating disk of row, every group of biological rotating disk is to be all fixed on a steel axle by multiple biological rotating disks, each steelThe two ends of axle are fixed on the inwall in haptoreaction groove, on same one end of each steel axle, wear a gear,Sequentially arranged and mutual interlock formative gear chain by multiple gears, on wheel chain, lay a sprocket wheel withMultiple gears are played the role of positioning;
Waterwheel gear is connected with wheel chain by a power transmission shaft, rotarily drives waterwheel by unpowered waterwheelGear rotation, and then the rotation of driven gear chain, each gear on wheel chain makes respectively coaxial biologyRotating disk in haptoreaction groove in rotation;
Between many group biological rotating disks, utilize body of wall to be divided into twoth district, the bottom in haptoreaction groove is covered with mobileType molecular sieve filling; The bottom of biological rotating disk is immersed in the underwater in haptoreaction groove;
Overland flow artificial swamp is led in the water outlet of unpowered biological rotating disk-biofilter integrated apparatus;
Overland flow artificial swamp is flatly divided into, from top to down be followed successively by cross flow district, filtering area andWater guide district; Nanometer aeration ablating device is led in the water outlet of overland flow artificial swamp;
The bottom of nanometer aeration ablating device offers mud discharging mouth, and inside is positioned at mud discharging mouth top and is provided withNanometer aeration dish.
Described overland flow biological treatment system, wherein, biological rotating disk is pie hollow iron cage shape,Pie hollow iron cage is by six iron plates of round iron plate welding as skeleton, and skeleton one side is welded a circular netPlate, two skeletons are arranged in parallel, between rely on web plate to bend to circular connection. Transverse axis and iron cage adoptHexagon is fixed, and to strengthen its coupling stiffness, inside is filled with polyethylene ball, and polyethylene ball is innerHollow, spherome surface is covered with square opening, and polyethylene ball inside is filled with light granules molecular sieve filling,The loading of light granules molecular sieve filling is 70% of polyethylene ball inner space.
Described overland flow biological treatment system, wherein, institute of cross flow district in overland flow artificial swampThe Fu Luoli diatomite and the clayey soil that are bad hydraulic permeability with soil, sneak into volume in Fu Luoli diatomiteThan 30% coarse sand.
Described overland flow biological treatment system, wherein, the cross flow district in overland flow artificial swampHave 1～5%, sewage can slowly be flowed in flakes along the gradient.
Described overland flow biological treatment system, wherein, overland flow artificial swamp inner surface is alternateGround is planted and is implanted with herbaceous plant and xylophyta.
Described overland flow biological treatment system, wherein, the nanometer in nanometer aeration ablating device is exposed to the sunGas dish is connected with a nanometer aeration machine.
The method of utilizing above-mentioned overland flow biological treatment system to dispose of sewage provided by the invention:
Treatment sewage hangs down from elevated tank place to spreading and impacts unpowered waterwheel, by waterwheel gear driven biologyDial rotation, the organic matter in the biomembrane absorption waste water in biological rotating disk on molecular sieve filling, makes micro-Biological acquisition nutrition, when biological rotating disk produces the water surface, the moisture film of biomembrane and drive thereof is again from atmosphereDirectly absorb oxygen, so aerobe processing is carried out in circulation repeatedly, and the organic matter in waste water is aerobicUnder the effect of microorganism, obtain oxidation Decomposition, ammonia nitrogen and organic nitrogen are oxidized into nitrate, and then are connecingTouch in reactive tank and carry out denitrification in anaerobic environment, nitrogen in sewage is effectively removed; Biological rotating disk workWhile work, biological rotating disk top contacts with air, and on its inner molecular sieve filling, ammonia nitrogen is oxidized to nitre nitrogenStripping, rotates into sewage inside, again adsorbs ammonia nitrogen, and consumes in sewage and have in denitrification processMachine thing, goes round and begins again and disposes of sewage, and the phosphorus in sewage is also accumulated in the biomembrane of biological rotating disk, rawThing film can, because of aging constantly self falling, precipitate, and regularly be expelled in haptoreaction grooveOverland flow soil oozes system;
Ooze in system at overland flow soil, the pathogenic microorganism in waste water enters soil, falls in its oxidationIn solution process, prey on pathogen, virus, waste water is removed bacterium and virus wherein after soil filters.
Described method, wherein, the hydraulic detention time in nanometer aeration ablating device exceedes 10min.
Described method, wherein, the air inlet of nanometer aeration ablating device is O3, large by nanometer aerationAmount obtains hydroxyl radical free radical.
Described method, wherein, the water outlet of overland flow artificial swamp is back to unpowered biological simultaneouslyThe integrated apparatus water inlet of rotating disk-biofilter, regulating water quality also stimulates microorganism growth process secretion secondaryMaterial.
The present invention uses elevated tank water inlet, and treatment sewage hangs down and spreads impact waterwheel from eminence, utilizes toothWheel interlock and long moment lever principle drive biological rotating disk to rotate, the surface biological film absorption of biological rotating diskOrganic matter in waste water, microorganism obtains nutrition, while producing the water surface, the moisture film of biomembrane and drive thereofFrom atmosphere, directly absorb again oxygen, so aerobe processing, having in waste water are carried out in circulation repeatedlyMachine thing obtains oxidation Decomposition under aerobic effect, and ammonia nitrogen and organic nitrogen are oxidized into nitroNitrogen, and then in anaerobic environment, carry out denitrification, nitrogen in sewage is effectively removed. Biological rotating disk workWhile work, rotating disk top contacts with air, and in its interior molecules sieve, ammonia nitrogen is oxidized to the stripping of nitre nitrogen, rotatesEnter sewage inside, again adsorb ammonia nitrogen, and in denitrification process, consume organic matter in sewage, week andRenew and dispose of sewage. Phosphorus in sewage is also accumulated in rotating disk biomembrane, the life in rotating disk on molecular sieveThing film can be because of aging constantly self falling, and is regularly expelled to next step overland flow soil and oozes system.Ooze in system at overland flow soil, the pathogenic microorganism in waste water enters soil, the environment that is just faced with competition,Here oxygen abundance, aerobe is active, in its Oxidative Degradation Process, will prey on pathogen, diseasePoison, waste water filters through one meter to several meters thick soil, and bacterium wherein and virus almost can be wholeGet rid of, only on upper strata, earth's surface the clearance of the Soil Microorganism of 1 centimetre just up to 92～97%,Use edema pathogenic microorganism short life cycle, residual rate is little.
Brief description of the drawings
Fig. 1 is the structural representation of overland flow biological treatment system of the present invention.
Primary clustering symbol description in accompanying drawing:
1 elevated tank; 2 unpowered biological rotating disk-biofilter integrated apparatus; 2A haptoreaction groove;3 biological rotating disks; 4 bodies of wall; 5 steel axles; 6 botanical systems; 7 cross flow districts; 8 overland flow Manual moistsGround; 9 wireways; 10 nanometer aeration ablating devices; 11 mud discharging mouths; 12 nanometer aeration dishes; 13 turnSub-flowmeter; 14 nanometer aeration machines; 15 hydraulic pumps; 16 water guide districts; 17 filtering areas; 18 wheel chains;18A sprocket wheel; 19 power transmission shafts; 20 buckets; 21 unpowered waterwheels; 22 waterwheel gears.
Detailed description of the invention
Overland flow biological treatment system of the present invention as shown in Figure 1, is mainly to be turned by unpowered biologicalDish-biofilter integrated apparatus, overland flow artificial swamp and nanometer aeration ablating device composition; ItsIn:
Unpowered biological rotating disk-biofilter integrated apparatus 2 includes elevated tank 1, and pipeline is by instituteHave the sewage transport of generation to elevated tank 1, elevated tank discharge sewage just to unpowered waterwheel 21,Sewage falls into the bucket 20 of the unpowered waterwheel in below from drain valve for high-level cistern, utilize gravitional forceBeing converted into kinetic energy promotes unpowered waterwheel 21 and rotates.
Unpowered waterwheel 21 is coaxial with a waterwheel gear 22, and the periphery of this waterwheel gear 22 is provided with bucket20, bucket 20 is positioned at the delivery port of elevated tank 1. The one makeup of unpowered biological rotating disk-biofilterPut in 2 haptoreaction groove and in 2A, be provided with the biological rotating disks 3 that many groups are arranged, every group of biological rotating disk 3 is equalBe to be fixed on a steel axle 5 by multiple biological rotating disks, the two ends of each steel axle 5 are fixed in haptoreaction grooveOn the inwall of 2A, on same one end of each steel axle 5, wear a gear, sequentially arranged and phase by multiple gearsInterlock formative gear chain 18 is mutually laid a sprocket wheel 18A fixed so that multiple gears are risen on wheel chain 18Position effect. Biological rotating disk in the integrated apparatus of unpowered biological rotating disk-biofilter has 30-45%'sArea is immersed in the underwater in 2A in haptoreaction groove.
Biological rotating disk is pie hollow iron cage composition, and pie hollow iron cage is by six of round iron plate weldingIron plate is as skeleton, and skeleton one side is welded a circular web plate, and two skeletons are arranged in parallel, between rely onWeb plate bends to circular connection. Transverse axis and iron cage adopt hexagon to fix, to strengthen its coupling stiffness.The inner completely polyethylene ball of filling of iron cage, polyethylene ball inner hollow, spherome surface is covered with square opening, inPortion's light filling granulin molecule sieve filler, the loading of light granules molecular sieve filling is in polyethylene ball70% of portion space, in biological rotating disk rotation process, due to the mobility of polyethylene ball, makes ensureingThe irregular collision of molecular sieve filling of polyethylene ball inside, surface biological film is de-under shock rubbing actionFall. This structure is significant in the mass transport process of oxygen, and is conducive to the micro-life of biomembrane internal layerThing directly obtains matrix from liquid phase.
Waterwheel gear 22 is connected with wheel chain 18 by a power transmission shaft 19, is rotated by unpowered waterwheel 21Drive waterwheel gear 22 to rotate, and then driven gear chain 18 rotates, each gear on wheel chain 18 dividesDo not make in 2A, to rotate in haptoreaction groove with coaxial biological rotating disk 3.
Between many group biological rotating disks 3, utilize body of wall 4 to be divided into twoth district, the bottom of 2A in haptoreaction grooveBe covered with flow model molecular sieve filling.
Ammonia Nitrogen in Municipal Wastewater concentration is about 80mg/L, can produce bio-toxicity, haptoreaction groove 2ABottom and the inner molecular sieve filling of filling of biological rotating disk have huge specific area and absorption by forceProperty, the polluters such as the ammonia nitrogen in absorption sewage, suppress saprobia toxicity to improve saprobia placeReason effect, through the absorption of molecular sieve filling in biological rotating disk, ammonia nitrogen concentration can be lower than 40mg/L,Microbial growth in biological treatment process preferably.
Overland flow Manual moist is led in the water outlet of unpowered biological rotating disk-biofilter integrated apparatus 2Ground 8.
Overland flow artificial swamp 8 is flatly divided into cross flow district 7, filtering area 17 and water guide district 16 3Layer. Wherein, the argillic horizon that the interior filling thickness in cross flow district 7 is 700mm, is not sieve of bad hydraulic permeabilityIn diatomite and clayey soil, in Fu Luoli diatomite, sneak into the coarse sand of volume ratio 30%. Cross flow district 7Interior kind is implanted with botanical system, adopts herbaceous plant (as canna), xylophyta (as little leaf boxwood)Alternate, the crisscross dish knot of draft and xylophyta root system, is wrapped in wetland cross flow district, has view effectWhen fruit, improve treatment effect. The two-layer geotextiles of the interior laying of filtering area 17, presss from both sides one deck between geotextilesCoarse porosity nonwoven, prevents the soil erosion of cross flow district; Water guide district 16 is dredged processing rear sewageProcess, be more conducive to process the discharge of rear sewage. In overland flow artificial swamp, cross flow district answers smooth and hasEven and the suitable gradient (1～5%), can slowly flow in flakes along the gradient sewage.
Nanometer aeration ablating device 10 is led in the water outlet of overland flow artificial swamp 8. Nanometer aeration meltsThe bottom of device 10 offers mud discharging mouth 11, and inside is positioned at mud discharging mouth 11 tops and is provided with nanometer aerationDish 12, nanometer aeration dish 12 is connected with a nanometer aeration machine 14, and air inlet is O3, expose to the sun by nanometerGas obtains hydroxyl radical free radical in a large number. The bubble of aeration is evenly sneaked in sewage, at high-temperature nano aerationIn situation, sewage is carried out to nanometer aeration processing. In sewage, tiny flco floats with nano bubble, passes throughAir supporting principle is removed with Despumation device, and in sewage, residual biodegradable organic compounds is senior at nanometer aerationUnder the effect of oxidation, decompose, melt, pathogen and microorganism are inactivated, the transparency of sewage, colourityAlso increase. Hydraulic detention time in nanometer aeration ablating device preferably exceedes 10min. Earth's surfaceThe part water outlet of cross flow artificial swamp is back to the one makeup of unpowered biological rotating disk-biofilter simultaneouslyPut into water, regulating water quality also stimulates microorganism growth process secretion secondary substance.
According to one embodiment of present invention, overland flow treatment effect is promoted 5 times by the present invention, energyConsumption reduction 70%, for trace organic substance handling rate up to 100%.
Claims (10)
1. an overland flow biological treatment system, mainly by unpowered biological rotating disk-biofilter oneBody gasifying device, overland flow artificial swamp and nanometer aeration ablating device composition; Wherein:
Unpowered biological rotating disk-biofilter integrated apparatus includes elevated tank;
Unpowered waterwheel is coaxial with a waterwheel gear, and the periphery of this waterwheel gear is provided with bucket, bucket positionIn the delivery port of elevated tank;
In the haptoreaction groove of unpowered biological rotating disk-biofilter integrated apparatus, be provided with many group rowsThe biological rotating disk of row, every group of biological rotating disk is to be all fixed on a steel axle by multiple biological rotating disks, each steelThe two ends of axle are fixed on the inwall in haptoreaction groove, on same one end of each steel axle, wear a gear,Sequentially arranged and mutual interlock formative gear chain by multiple gears, on wheel chain, lay a sprocket wheel withMultiple gears are played the role of positioning;
Waterwheel gear is connected with wheel chain by a power transmission shaft, rotarily drives waterwheel by unpowered waterwheelGear rotation, and then the rotation of driven gear chain, each gear on wheel chain makes respectively coaxial biologyRotating disk in haptoreaction groove in rotation;
Between many group biological rotating disks, utilize body of wall to be divided into twoth district, the bottom in haptoreaction groove is covered with mobileType molecular sieve filling; The bottom of biological rotating disk is immersed in the underwater in haptoreaction groove;
Overland flow artificial swamp is led in the water outlet of unpowered biological rotating disk-biofilter integrated apparatus;
Overland flow artificial swamp is flatly divided into cross flow district, filtering area and water guide district successively; Earth's surface is unrestrainedNanometer aeration ablating device is led in the water outlet of turning flow artificial wetland;
The bottom of nanometer aeration ablating device offers mud discharging mouth, and inside is positioned at mud discharging mouth top and is provided withNanometer aeration dish.
2. overland flow biological treatment system according to claim 1, wherein, biological rotating diskFor pie hollow iron cage shape, pie hollow iron cage welds six iron plates as skeleton by round iron plate, boneFrame one side is welded a circular web plate, and two skeletons are arranged in parallel, between rely on web plate to bend to circular companyConnect; Transverse axis and iron cage adopt hexagon to fix, and to strengthen its coupling stiffness, inside is filled with polyethyleneBall, polyethylene ball is inner hollow, and spherome surface is covered with square opening, and polyethylene ball inside is filled with gentlyMatter granulin molecule sieve filler, the loading of light granules molecular sieve filling is polyethylene ball inner space70％。
3. overland flow biological treatment system according to claim 1, wherein, overland flowFu Luoli diatomite and clayey soil that in artificial swamp, cross flow district soil used is bad hydraulic permeability, not sieveIn sneak into the coarse sand of volume ratio 30% in diatomite.
4. overland flow biological treatment system according to claim 1, wherein, overland flowCross flow district in artificial swamp has 1～5%, and sewage can slowly be flowed in flakes along the gradient.
5. overland flow biological treatment system according to claim 1, wherein, overland flowArtificial swamp inner surface is respectively planted and is implanted with herbaceous plant and xylophyta.
6. overland flow biological treatment system according to claim 1, wherein, nanometer aerationNanometer aeration dish in ablating device is connected with a nanometer aeration machine.
7. utilize the method that overland flow biological treatment system is disposed of sewage according to claim 1:
Treatment sewage hangs down from elevated tank place to spreading and impacts unpowered waterwheel, by waterwheel gear driven biologyDial rotation, the organic matter in the biomembrane absorption waste water in biological rotating disk on molecular sieve filling, makes micro-Biological acquisition nutrition, when biological rotating disk produces the water surface, the moisture film of biomembrane and drive thereof is again from atmosphereDirectly absorb oxygen, so aerobe processing is carried out in circulation repeatedly, and the organic matter in waste water is aerobicUnder the effect of microorganism, obtain oxidation Decomposition, ammonia nitrogen and organic nitrogen are oxidized into nitrate, and then are connecingTouch in reactive tank and carry out denitrification in anaerobic environment, nitrogen in sewage is effectively removed; Biological rotating disk workWhile work, biological rotating disk top contacts with air, and on its inner molecular sieve filling, ammonia nitrogen is oxidized to nitre nitrogenStripping, rotates into sewage inside, again adsorbs ammonia nitrogen, and consumes in sewage and have in denitrification processMachine thing, goes round and begins again and disposes of sewage, and the phosphorus in sewage is also accumulated in the biomembrane of biological rotating disk, rawThing film can, because of aging constantly self falling, precipitate, and regularly be expelled in haptoreaction grooveOverland flow soil oozes system;
Ooze in system at overland flow soil, the pathogenic microorganism in waste water enters soil, falls in its oxidationIn solution process, prey on pathogen, virus, waste water is removed bacterium and virus wherein after soil filters.
8. method according to claim 7, wherein, the waterpower in nanometer aeration ablating deviceThe time of staying exceedes 10min.
9. method according to claim 7, wherein, the air inlet of nanometer aeration ablating device isO3, obtain in a large number hydroxyl radical free radical by nanometer aeration.
10. method according to claim 7, wherein, the water outlet of overland flow artificial swamp is sameTime be back to the water inlet of unpowered biological rotating disk-biofilter integrated apparatus, regulating water quality also stimulates micro-lifeThing growth course secretion secondary substance.
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| CN108164003A (en) * | 2018-01-10 | 2018-06-15 | 正丰源生物科技（苏州）有限公司 | A kind of biological filter membrane cultivates circular water treating system |
| CN109133378A (en) * | 2018-09-30 | 2019-01-04 | 北京东方园林环境股份有限公司 | A kind of composite constructed wetland system |
| CN113371926B (en) * | 2021-04-30 | 2022-04-12 | 东南大学 | Rural distributed domestic sewage biological ecological coupling device with sustainability |
| CN114477646B (en) * | 2022-02-17 | 2024-01-19 | 上海阅水环境建设有限公司 | Microminiature integrated sewage treatment system |
| CN114524591B (en) * | 2022-03-14 | 2023-05-09 | 中国科学院生态环境研究中心 | Constructed wetland device with heat preservation effect |
| CN115043492B (en) * | 2022-06-24 | 2023-05-23 | 江西省科学院能源研究所 | Sewage denitrification device and method thereof |
| CN117185587A (en) * | 2023-10-27 | 2023-12-08 | 江苏龙腾工程设计股份有限公司 | Ecological purification system for aquaculture tail water with complementary photovoltaics in fishery |
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