CN104193082A - Device and method for rapidly treating kitchen waste wastewater - Google Patents

Device and method for rapidly treating kitchen waste wastewater Download PDF

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CN104193082A
CN104193082A CN201410359330.XA CN201410359330A CN104193082A CN 104193082 A CN104193082 A CN 104193082A CN 201410359330 A CN201410359330 A CN 201410359330A CN 104193082 A CN104193082 A CN 104193082A
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nanometer aeration
disturbing
recoil
sieving
sieving pond
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CN104193082B (en
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张列宇
王雷
席北斗
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Abstract

The invention discloses a device for rapidly treating kitchen waste wastewater. The device mainly comprises a cavitation air floatation device, a first-stage turbulent flow nano-aeration backwash filter, a bio-membrane reactor, a flocculation tank, a second-stage turbulent flow nano-aeration backwash filter and a girt chamber. The invention also discloses a method for treating kitchen waste wastewater by using the device. The problems of high kitchen waste wastewater output, high treatment difficulty and long reaction period are effectively solved by mainly using a mechanical method and accessorily using a biological method according to the concept that the kitchen waste wastewater is rapidly treated, the wastewater treatment time is shortened, the generated wastewater can be rapidly discharged up to the standard, and the aims of reduction, harmlessness and recycling of the kitchen waste wastewater are realized.

Description

A kind of quick treatment device of kitchen garbage, waste-water and method
Technical field
The present invention relates to a kind of quick treatment device of kitchen garbage, waste-water.
The invention still further relates to the method for utilizing said apparatus fast processing kitchen garbage, waste-water, relate to particularly the method for pollution substance in a kind of removal kitchen garbage, waste-water (as: organism, oil content, suspended substance, colloid, heavy metal etc.).
Background technology
Changing food waste produces a large amount of pollutents, for example odorant pollutant H in collection, transportation, stacking, treating processes 2s, NH 3and food waste percolate.Wherein food waste percolate is treated as a great problem.
Changing food waste due to biochemical degradations such as compacting, fermentations, has produced a kind of liquid of organic or inorganic composition of high density simultaneously in stacking and landfill process under the seepage effect of precipitation and underground water, and we are referred to as food waste percolate.Affect the factor that percolate produces a lot, mainly contain the rainfall situation in dumping landfill region, the antiseepage disposition of the character of rubbish and composition, landfill yard, the hydrogeological conditions in place etc.In percolate, CODcr, BOD5 concentration are compared with municipal effluent, and concentration is much higher, so percolate cannot directly enter municipal sewage treatment pipeline without strict processing, disposal.The features such as food waste percolate has complicated component, and water quality and quantity changes greatly, and organism and ammonia nitrogen concentration are high, the imbalance of microbial nutrition element ratio, it is more complicated that it processes relative municipal effluent.
In the research of changing food waste harmless treatment Technology of Landfill Leachate, can find out with conventional leachate treatment technology and compare, required treatment technology is higher, also needs more times perfect simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of quick treatment device of kitchen garbage, waste-water.
Another object of the present invention is to provide a kind of method of utilizing said apparatus to process kitchen garbage, waste-water.
For achieving the above object, the quick treatment device of a kind of kitchen garbage, waste-water provided by the invention, its primary structure comprises:
One Eddy concave air-floatation apparatus, be divided into aeration zone, Gua Zha district and three of exhalant regions part, bottom, Yu Guazha district, bottom, aeration zone is connected by a pipeline, prevent from causing Cavltation aerator idle running into water deficiency, in aeration zone, be provided with Cavltation aerator, upper end, Gua Zha district is that a motor rotates cleaning shoe by transmission mechanism band movable sprocket, and dispose of sewage surperficial body refuse, the dregs of fat of air supporting struck off to dreg collecting slot and got rid of; In exhalant region, two flaps, consist of, isolated top scum silica frost and bottom mud, collect middle part clear liquid from flowing in one-level flow-disturbing nanometer aeration recoil sieving pond;
One-level flow-disturbing nanometer aeration recoil sieving pond is divided into upper and lower two-layer by a porous plate, porous plate top arranges a nanometer aeration head, on nanometer aeration head, lay one deck compounded mix, compounded mix top arranges a stirrer, there is an aeration tube compounded mix one side surface top, aeration tube is provided with a plurality of pore solarization air caps, and solarization air cap vertically upward; Aeration tube top is provided with backflash, and ultrasonic generator is installed; Porous plate below is water tank, the inwall uniform loading nonmetal doping photocatalyst of water tank, the bottom of water tank is provided with ultraviolet sterilization lamp, and nanometer aeration head is set between the space of ultraviolet sterilization lamp, and in water tank, remaining space is filled with semi-conductor load filler; The water outlet in one-level flow-disturbing nanometer aeration recoil sieving pond connects in biofilm reactor;
Biofilm reactor bottom offers mudhole, and biofilm reactor inside is positioned at mud discharging mouth top and is provided with nanometer aeration dish, and there is stirrer nanometer aeration dish top, and on the filler in biofilm reactor, growth has aerobic biologic membrane; Temperature controller is installed in biofilm reactor, and this temperature controller connects and controls temperature-sensitive control head and the heating zone that is placed in biofilm reactor inside; The water outlet of biofilm reactor is connected to flocculation basin;
Flocculation basin bottom offers mudhole, is positioned at mud discharging mouth top and is provided with nanometer aeration head in flocculation basin, and nanometer aeration head top is provided with stirrer, the other grug feeding jar that holds coagulating agent that is provided with of stirrer; The water outlet of flocculation basin is connected with secondary flow-disturbing nanometer aeration recoil sieving pond by a hydro-pump;
Secondary flow-disturbing nanometer aeration recoil sieving pond is identical with one-level flow-disturbing nanometer aeration recoil sieving pool structure, and the water outlet in secondary flow-disturbing nanometer aeration recoil sieving pond directly imports in settling pit;
Settling pit bottom offers mudhole, and top is provided with stirrer, and a part of supernatant liquor of settling pit input one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration by hydro-pump and recoiled in the water tank in sieving pond and use for back flushing.
Described quick treatment device, wherein, the Cavltation aerator of Eddy concave air-floatation apparatus is consisted of impeller and motor.
Described quick treatment device, wherein, the nanometer aeration head of one-level flow-disturbing nanometer aeration recoil sieving pond, secondary flow-disturbing nanometer aeration recoil sieving pond and flocculation basin, and the nanometer aeration dish of biofilm reactor all connects a nanometer aeration machine separately.
Described quick treatment device, wherein, the porous plate in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond is comprised of two-layer porous plate therebetween one deck stainless steel gauze.
Described quick treatment device, wherein, the semi-conductor load filler in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond is nano-TiO 2powder loads on solid netted polypropylene filler.
Described quick treatment device, wherein, the compounded mix in one-level flow-disturbing nanometer aeration recoil sieving pond is the red mud molecular sieve filling of particle diameter 3-50mm, for filtration, adsorption sustained-release; The compounded mix in secondary flow-disturbing nanometer aeration recoil sieving pond is zeroth order Nanoscale Iron and the quartz sand filler of particle diameter 0.5-1.0mm.
Described quick treatment device, wherein, the grug feeding jar on flocculation basin is connected with flocculation basin by dosing valve, and the coagulating agent in grug feeding jar is polymerize aluminum chloride+cationic polyacrylamide, and the amount ratio of substance is 20:1.
The treatment process of utilizing above-mentioned quick treatment device to carry out kitchen garbage, waste-water provided by the invention:
Sewage enters in the aeration zone of Eddy concave air-floatation apparatus, the microbubble producing with Cavltation aerator fully mixes, microbubble takes suspended solid to the water surface in the process rising, and laterally from flowing in Gua Zha district, in Gua Zha district, cleaning shoe turns round under the gearing by sprocket wheel at electric motor, along liquid level operation, suspended substance is scraped to dreg collecting slot, sewage flows into exhalant region through two flaps below liquid level, traverse baffle can guarantee that the liquid in groove can not flow into mud discharging pipeline, carry out secondary sedimentation simultaneously, prevent that mud from entering exhalant region; Sewage after cavitation aerating apparatus is processed imports in one-level flow-disturbing nanometer aeration recoil sieving pond and carries out sieving processing;
In one-level flow-disturbing nanometer aeration recoil sieving pond, the nanometer aeration air inlet of compounded mix is O 2, for clean filler, the nanometer aeration air inlet of the water tank in one-level flow-disturbing nanometer aeration recoil sieving pond is O 3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, and Nano grade O 3bubble and ultraviolet sterilization lamp, semi-conductor load filler coexist in water tank, improve advanced oxidation effect, effectively improve OH production rate; One-level flow-disturbing nanometer aeration recoil sieving pond water outlet directly imports in biofilm reactor and processes;
Biofilm reactor is controlled at 25-35 ℃ by temperature under the synergy of temperature controller, temperature-sensitive control head and heating zone, according to different its hydraulic detention times of influent quality, is 2-24h, and biofilm reactor water outlet imports in flocculation basin;
The dosing valve of opening flocculation basin adds coagulating agent, opening nanometer aeration machine evenly mixes coagulating agent with sewage, cause micro swirl effect to carry out flocculation treatment to tiny suspension flco in sewage, flocculation basin supernatant liquor enters secondary flow-disturbing nanometer aeration recoil sieving pond by hydro-pump and carries out sieving processing;
In secondary flow-disturbing nanometer aeration recoil sieving pond, the nanometer aeration air inlet of compounded mix is O 2, for clean filler, the nanometer aeration air inlet of the water tank in secondary flow-disturbing nanometer aeration recoil sieving pond is O 3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, and Nano grade O 3bubble and ultraviolet sterilization lamp, semi-conductor load filler coexist in water tank, improve advanced oxidation effect, effectively improve OH production rate;
The water outlet in secondary flow-disturbing nanometer aeration recoil sieving pond imports in settling pit, makes remaining suspended substance and filler precipitation in sewage, and supernatant liquor is directly used in middle water reuse.Effluent recycling to the biofilm reactor in secondary flow-disturbing nanometer aeration recoil sieving pond is intake, regulating water quality stimulating plant process of growth secretion secondary substance.
Described method, wherein, the supernatant liquor of settling pit, when one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond need back flushing, input one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration by hydro-pump and is recoiled in the water tank in sieving pond and use for back flushing.
Described method, wherein, the average irradiation dose of ultraviolet sterilization lamp in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond is at 300J/m 2above.
The present invention adopts fast processing kitchen garbage, waste-water theory, be different from existing treatment process, mainly take mechanical process as main, and biological process is auxiliary, and effective solution kitchen garbage, waste-water generation is many, intractability is large, the problem that reaction time is long, shortens the sewage disposal time, makes fast to produce waste water and reaches emission standard, accomplish the minimizing of changing food waste sewage, innoxious, resource utilization, avoid because kitchen garbage, waste-water is placed the impact causing surrounding enviroment for a long time.This technique floor space is little, simple to operate simultaneously, modern design, and economic benefit and environmental benefit are high.The present invention adopts sieving method twice, wherein in flow-disturbing nanometer aeration recoil sieving pond, nano titanium dioxide crystal excites the free negative ion that has oxidizing power under ultra violet lamp as photocatalyst, simultaneously in nanometer aeration process and the energy that excites of ultrasonic wave generating process also can there is and strengthen the generation of free negative ion, reach photocatalysis effect; And free negative ion with and break away from the constraint of covalent linkage after leave room, with nano bubble surface with electric charge produce micro-electrolysis effectiveness simultaneously, a sieving after cavitation air flotation pre-treatment, in reduction kitchen garbage, waste-water, suspended substance and colloid are to reduce COD index in waste water, advanced treatment is carried out in secondary sieving before water outlet, by producing hydroxyl radical free radical, the pollutent that can not be oxidized by ordinary oxygen agent in sewage is carried out to oxidative degradation simultaneously.Kill the bacterium in sewage, pathogenic bacteria, plays the effect of sterilization simultaneously, prevent that organism, microorganism from causing that sewage rots, fermentation, smelly etc. rot, fermentation, smelly.Kitchen garbage, waste-water treatment operating costs has been reduced to 4 times, and thoroughly solved the puzzlement of stench environment in waste water treatment process, simultaneity factor is reliable, stable, has thoroughly solved kitchen garbage, waste-water and has processed this huge difficult problem.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention.
Primary clustering nomenclature in accompanying drawing:
1 motor; 2 pedestals; 3 impellers; 4 Eddy concave air-floatation apparatus; 5 sprocket wheels; 6 cleaning shoes; 7 transmission mechanisms; 8 exhalant regions; 8A flap; 9 hydro-pumps; 10 one-level flow-disturbing nanometer aeration recoil sieving ponds; 11 temperature controllers; 12 heating zones; 13 temperature-sensing probes; 14 biofilm reactors; 15 fillers; 16 flocculation basins; 17 grug feeding jars; 18 dosing valves; 19 secondary flow-disturbing nanometer aeration recoil sieving ponds; 20 settling pits; 21 mudholes; 22 nanometer aeration machines; 23 ultraviolet sterilization lamps; 24 porous plates; 25 nanometer aeration heads; 25A compounded mix; 26 semi-conductor load fillers; 27 water tanks; 28 nanometer aeration dishes; 29 stirrers; 30 dreg collecting slots; 31Gua Zha district; 32 aeration zones; 33 ultrasonic generators; 34 aeration tubes; 35 backflashes.
Embodiment
The quick treatment device of kitchen garbage, waste-water provided by the invention, can remove dirty pollutant in water (as: organism, inorganics, microorganism, heavy metal etc.) fast.
Refer to Fig. 1.The quick treatment device of kitchen garbage, waste-water provided by the invention, its primary structure comprises:
Eddy concave air-floatation apparatus 4, mainly be divided into aeration zone 32,8 three of 31He exhalant regions, Gua Zha district part, 31 bottoms, 32 Yu Guazha district, bottom, aeration zone are connected by a pipeline, prevent from causing Cavltation aerator idle running into water deficiency, pipeline top is the Cavltation aerator of nanometer aeration head and impeller 3 and motor 1 formation, by a pedestal 2, is fixed on Eddy concave air-floatation apparatus 4 upper ends; 31 upper ends, Gua Zha district be a motor 1 by transmission mechanism 7 band movable sprockets 5 runnings, thereby continuously air supporting is disposed of sewage surperficial body refuse, the dregs of fat of cleaning shoe 6 struck off to the interior eliminating of dreg collecting slot 30; In exhalant region 8, two flaps 8, consist of, isolated top scum silica frost and bottom mud, collect middle part clear liquid.
First raw sewerage enters aeration zone 32, the nano bubble that the micro-bubble producing with Cavltation aerator and nanometer aeration machine produce fully mixes, bubble takes suspended solid to the water surface in the process rising, cleaning shoe 6 is scraped suspended substance to dreg collecting slot 30 along liquid level operation, after sewage purification, before discharge, can flow into exhalant region through two flap 8A, guarantee that the liquid in dreg collecting slot 30 can not flow into mud discharging pipeline, carry out secondary sedimentation simultaneously, prevent that mud from entering exhalant region 8.
Cavltation aerator directly injects sewage by " microbubble " and does not need to carry out in advance molten gas, then by impeller, " microbubble " is distributed in sewage uniformly, so choking phenomenon can not occur whole service process; Nanometer aeration head at the bottom of 32 ponds, aeration zone is also auxiliary constantly produces micro-nano bubble, utilizes in different-grain diameter bubble floating process and large-scale particle and micro-nano flco, other suspended matter of two kinds of levels of colloid can be adhered to, and it is floated on the surface thereupon.Micro-nano bubble residence time in sewage surpasses 4 hours simultaneously, plays preaeration effect.After Eddy concave air-floatation apparatus 4 is removed granule type suspended substance, water outlet is from flowing to one-level flow-disturbing nanometer aeration recoil sieving pond 10.
One-level flow-disturbing nanometer aeration recoil sieving pond 10 is divided into upper and lower two-layer by a porous plate 24 (two-layer porous plate is mingled with one deck stainless steel gauze).Porous plate 24 tops arrange a nanometer aeration head 25A and are connected with a nanometer aeration machine 22, and air inlet is O 2, for clean filler.On nanometer aeration head 25, lay one deck compounded mix 25A, this compound 25A adopts the red mud molecular sieve filling that particle diameter is 3-50mm, compounded mix 25A top arranges a stirrer, by impeller 3 and motor 1, formed, there is an aeration tube 34 compounded mix 25A mono-side surface top, and aeration tube 34 is provided with a plurality of pore solarization air caps, and solarization air cap vertically upward, aeration tube 34 tops are provided with backflash 35, and ultrasonic generator 33 is installed.Porous plate 24 belows are water tank 27, inwall uniform loading one deck nonmetal doping photocatalyst of water tank 27, the bottom of water tank 27 is provided with ultraviolet sterilization lamp 23, nanometer aeration head 25 is set between the space of ultraviolet sterilization lamp 23 and is connected with a nanometer aeration machine 22, and air inlet is O 3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, play strong oxidation.The interior remaining space of water tank 27 is filled with semi-conductor load filler 26 (as nano-TiO 2powder loads on solid netted polypropylene filler), the present invention is fixed on filler on carrier, and having solved conventional photocatalyst needs the collaborative drawback of using of dispersion agent, has reduced the leakage of catalyzer, has avoided reaction to finish the separating step of rear catalyst.The water outlet in one-level flow-disturbing nanometer aeration recoil sieving pond 10 directly imports in biofilm reactor 14 to be processed.
Biofilm reactor 14 bottoms offer mudhole 21, and biofilm reactor 14 inside are positioned at mud discharging mouth 21 tops and are provided with nanometer aeration dish 28 and are connected with a nanometer aeration machine 22; There is stirrer 29 nanometer aeration dish 28 tops, and on the filler in biofilm reactor 14, growth has aerobic biologic membrane; The water outlet of biofilm reactor 14 is connected to flocculation basin 16, temperature controller 11 is installed in biofilm reactor 14, this temperature controller 11 connects and controls and is placed in inner temperature-sensitive control head 13 and heating zone 12, temperature is controlled at 25-35 ℃ by temperature control unit, and hydraulic detention time is 2-24h.
Flocculation basin 16 bottoms offer mudhole 21, in flocculation basin 16, being positioned at mud discharging mouth 21 tops is provided with nanometer aeration head 25 and is connected with a nanometer aeration machine 22, the stirrer that nanometer aeration head 25 tops are comprised of impeller 3 and motor 1, stirrer is other has grug feeding jar 17 to be connected with flocculation basin 16 by dosing valve 18, coagulating agent in grug feeding jar is polymerize aluminum chloride PAC+ cationic polyacrylamide CPAM, and its adding proportion is 20:1.The water outlet of flocculation basin 16 is connected with secondary flow-disturbing nanometer aeration recoil sieving pond 19 by a hydro-pump 9;
Secondary flow-disturbing nanometer aeration recoil sieving pond 19 is identical with one-level flow-disturbing nanometer aeration recoil sieving pool structure 10, the compounded mix in secondary flow-disturbing nanometer aeration recoil sieving pond adopts zeroth order Nanoscale Iron and the quartz sand filler that particle diameter is 0.5-1.0mm, and the water outlet in secondary flow-disturbing nanometer aeration recoil sieving pond 19 directly imports carries out sand setting processing in settling pit 20.
One-level flow-disturbing nanometer aeration recoil sieving pond 10 and secondary flow-disturbing nanometer aeration recoil sieving pond 19 are when work, the discontinuous work of the interior nanometer aeration head of water tank 27, air is upwards heaved from porous plate 24, be divided into small bubbles, intermittently break up the fine and close crud layer on compounded mix 25A, pollution substance layer is broken into sheet and floats, under the effect of the buoyancy of aeration tube 34, overflow is to backflash 35, pollutent that filler is held back concentrated and got rid of to flow-disturbing nanometer aeration recoil sieving pond.Extend work-ing life and the backwash cycle in flow-disturbing nanometer aeration recoil sieving pond, for the lower situation of influent turbidity, even can be without back flushing, constantly operation is purified waste water.
Nanometer aeration head in water tank 27 adopts O 3aeration, because nano bubble has huge quantity, specific surface area, the characteristic such as lift velocity slowly, simultaneously gas residence time of ducking in drink long, increased gas-to-liquid contact area, duration of contact, be beneficial to ozone soluble in water, overcome the shortcoming that ozone is insoluble in water; Microbubble inside has larger pressure and nano bubble while breaking, and interface disappears, and the chemical energy that surrounding environment acutely changes generation impels and produces more hydroxyl radical free radical OH, strengthens O 3the organic ability of oxygenolysis; And Nano grade O 3(the average irradiation dose of ultraviolet sterilization lamp is at 300J/m for bubble and ultraviolet sterilization lamp 2above), semi-conductor load filler coexists in water tank, improves advanced oxidation effect, can effectively improve OH production rate.Air inlet in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond compounded mix is O 2, for clean compounded mix, the air inlet of water tank and flocculation basin is O 3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, play strong oxidation.
Settling pit 20 bottoms offer mudhole 21, the stirrer that top is comprised of impeller 3 and motor 1, and stirrer slow circumvolve, helps the precipitation of remaining suspended substance and filler in sewage.A part of supernatant liquor of settling pit 20 is inputted by hydro-pump in the water tank in one-level flow-disturbing nanometer aeration recoil sieving pond 10 and secondary flow-disturbing nanometer aeration recoil sieving pond and is used for back flushing.
The method that the present invention processes kitchen garbage, waste-water is:
First raw sewerage enters in the aeration zone of Eddy concave air-floatation apparatus, the microbubble producing with Cavltation aerator fully mixes, microbubble takes suspended solid to the water surface in the process rising, and laterally from flowing in Gua Zha district, in Gua Zha district, cleaning shoe turns round under the gearing by sprocket wheel at electric motor, along liquid level operation, suspended substance is scraped to dreg collecting slot, sewage flows into exhalant region through two flaps below liquid level, traverse baffle can guarantee that the liquid in groove can not flow into mud discharging pipeline, carry out secondary sedimentation simultaneously, prevent that mud from entering exhalant region.Cavltation aerator directly injects sewage by " microbubble " and does not need to carry out in advance molten gas, then by impeller, " microbubble " is distributed in sewage uniformly, so whole service process choking phenomenon can not occur.Sewage after cavitation aerating apparatus is processed imports in one-level flow-disturbing nanometer aeration recoil sieving pond and carries out sieving processing.
During normal sieving, open stirrer, adjustment rotating speed is 100r/min, and along with piling up due to pollution substance in sieving process, current can not pass through filler, the process that liquid level constantly increases smoothly, improve constantly the rotating speed of stirrer, when straight effluent quality is lower, carry out back flushing; When back flushing is carried out in one-level flow-disturbing nanometer aeration recoil sieving pond, open stirrer and nanometer aeration machine and carry out back flushing, under the High-Pressure Water producing when stirrer high-speed stirring and aeration and the effect of nano bubble, all fillers present random high-speed motion state, filler phase mutual friction under the shear action of the surging force of current vortex and bubble, impeller, the organic pollutant adhering on filler can be removed, and obtains comparatively pure filler.Red mud molecular sieve, for a large amount of adsorption foulings load slowly-releasing gradually, for reducing pollution load and toxicity, utilizes the red mud molecular sieve of meta-alkalescence as filler simultaneously, in absorption and the small molecules acid that produces of anaerobic part acidifying, regulates sewage potential of hydrogen rapidly; Build the fixedly heavy metal in sewage of slight alkali environment simultaneously, prevent its leaching.
Conventional sand filtration conventionally adopts on compacting filler, increase hydraulic pressure, sand and adds the means improvement sand filtration processes such as grid, conventionally not disturbance layer of sand, current are flow through between sand fine gap, and pollution substance rests on the top layer of layer of sand, the present invention is the swivel disturbance filler top layer that utilizes stirrer, prevents smooth the pass through formation resistance of pollution substance accumulation to current.Utilize surging force and the shearing force of nanometer aeration current, bubble to carry out back flushing to filler simultaneously.One-level flow-disturbing nanometer aeration recoil sieving pond water outlet directly imports in biofilm reactor and processes.
Biofilm reactor is controlled at 25-35 ℃ by temperature under the synergy of temperature controller, temperature-sensitive control head and heating zone, according to different its hydraulic detention times of influent quality, be 2-24h, biofilm reactor water outlet imports in flocculation basin, open dosing valve and add coagulating agent, open nanometer aeration machine coagulating agent is evenly mixed with sewage; Close nanometer aeration machine, open stirrer slow circumvolve, cause micro swirl effect to carry out flocculation treatment to tiny suspension flco in sewage, on unlatching mudhole, after valve spoil disposal, flocculation basin supernatant liquor is connected by a hydro-pump and secondary flow-disturbing nanometer aeration recoil sieving pond;
Secondary flow-disturbing nanometer aeration recoil sieving pond is identical with one-level flow-disturbing nanometer aeration recoil sieving pond treatment process, water outlet directly imports carries out sand setting processing in settling pit, in filler, zeroth order Nanoscale Iron, catches heavy metal for net, prevents the too high generation bio-toxicity of heavy metal concentration.
Open stirrer slow circumvolve in settling pit, make the precipitation of the interior remaining suspended substance of sewage and filler.When settling pit part supernatant liquor needs back flushing in sieving pond, by hydro-pump, input in one-level flow-disturbing nanometer aeration recoil sieving pond, one-level flow-disturbing nanometer aeration recoil sieving pond water tank and use for back flushing; Residue supernatant liquor is directly used in middle water reuse.
According to one embodiment of present invention, the present invention can shorten the sewage disposal time of at least one times, makes fast to produce waste water and reaches emission standard.
The present invention adopts three grades of backwashing technologies to carry out back flushing:
During normal sieving, open stirrer, its rotating speed is 100r/min, along with in sieving process because pollution substance is piled up, current can not pass through filler smoothly.The process that liquid level constantly increases, open aeration tube 34 intermittently starting porous plate below nanometer aeration machine 22, the discontinuous work of the interior nanometer aeration head 25 of water tank 27, air is upwards heaved from porous plate, be divided into small bubbles, the fine and close crud layer on sieving filler is broken up in the rotation of collaborative stirrer, and pollution substance layer is broken into sheet and floats.In the buoyancy of aeration tube and water inlet, impact under the synergy of thrust to the right and produce impeller effect, clean energetically the fine and close pollutent of filler top layer sheet, overflow is to backflash, the pollutent that filler is held back is concentrated outside remover, mix again and process with water inlet, sewage also can continue to permeate down from molecular sieve space.This screen apparatus can increase the service life and the backwash cycle, for the lower situation of influent turbidity, even can, without back flushing, make device constantly move and purify waste water.
Secondary back flushing is air pulse back flushing, because turbidity of sewage is too high, causes pollution substance at the bulk deposition of filling surface, only depends on one-level backwash step still can not reach the effect that continues sieving.Now stop water-in and water-out, close hydro-pump 9, start two nanometer aeration machines 22, water outlet in outlet sump is imported in water tank.Under the effect of pressure of return water, whole air in water tank are subject to crushing failure at high speed, along pore on dividing potential drop storehouse, rise, all under the impact force action of sieving packing layers nanometer aeration head under the impeller effect of ascending air, swivel disturbance and filler, the pollution substance fragmentation of filler space is floated, in the buoyancy of aeration tube and water inlet, impact flow-stopping plate to the right under the synergy of thrust again, overflow to backflash with initially intake and mix, treat water surface fast-descending.Filtering rate is closed two nanometer aeration machines 22 after again stablizing, and opens hydro-pump 9 and also recovers Inlet and outlet water, proceeds sieving and processes.
Three grades of back flushinges are the back flushing of aeration turbulent flow, and now I and II back flushing has been not enough to contaminated solution material to the covering of filler, obstructing problem, and sewage must not gather and filtered in a large number.Now stop water-in and water-out, close hydro-pump 9, start ultrasonic generator 33 and two nanometer aeration machines 22, water outlet in outlet sump is imported in water tank in a large number.(1) water tank inner air rises and stirs along porous plate pore, and filler bottom nanometer aeration head starts aeration, and filler top turbine constantly rotates; (2) utilize the collaborative cleaning of nanometer aeration techno-shock, oxidation, air supporting and high temperature action, top filler presents turbulence state, carry out random high-speed motion state, filler phase mutual friction under the surging force of current vortex and the shear action of bubble, the organic pollutant adhering on filler can be removed, and obtains comparatively pure filler; (3) utilize ultrasonic generator in liquid medium, to produce ultrasonic wave, at sieving filling surface, produce cavitation effect, the shockwave forming when cavitation steam bubble breaks in closing course, can produce the surge pressure of thousands of air pressure around at it, act on and on filling surface, destroy viscosity between dirt, and they are dispersed in backwash liquor rapidly, thereby reach the effect of filling surface cleaning.(4) after air emptying, the water outlet of outlet sump continues to import, the water outlet of being rich in hydroxy radical qiao rinse turbulence state filler particles surface and micropore, peel off pollution substance, filler is regenerated.And pollution substance under water flow impact pressure and right side aeration tube air supporting effect constantly to floating up to the water surface, from left end influent weir and right-hand member backflash, flow out and initially intake and mix.Through three grades of back flushinges, internal contamination thing is cleaned totally emptying.
Conventional sand filtration conventionally adopts on compacting filler, increase hydraulic pressure, sand and adds the means improvement sand filtration processes such as grid, conventionally not disturbance layer of sand, current are flow through between sand fine gap, and pollution substance rests on the top layer of layer of sand, the present invention is the swivel disturbance filler top layer that utilizes stirrer, prevents smooth the pass through formation resistance of pollution substance accumulation to current.Utilize surging force and the shearing force of nanometer aeration current, bubble to carry out back flushing to filler simultaneously.

Claims (10)

1. a quick treatment device for kitchen garbage, waste-water, its primary structure comprises:
One Eddy concave air-floatation apparatus, be divided into aeration zone, Gua Zha district and three of exhalant regions part, bottom, Yu Guazha district, bottom, aeration zone is connected by a pipeline, prevent from causing Cavltation aerator idle running into water deficiency, in aeration zone, be provided with Cavltation aerator, upper end, Gua Zha district is that a motor rotates cleaning shoe by transmission mechanism band movable sprocket, and dispose of sewage surperficial body refuse, the dregs of fat of air supporting struck off to dreg collecting slot and got rid of; In exhalant region, two flaps, consist of, isolated top scum silica frost and bottom mud, collect middle part clear liquid from flowing in one-level flow-disturbing nanometer aeration recoil sieving pond;
One-level flow-disturbing nanometer aeration recoil sieving pond is divided into upper and lower two-layer by a porous plate, porous plate top arranges a nanometer aeration head, on nanometer aeration head, lay one deck compounded mix, compounded mix top arranges a stirrer, there is an aeration tube compounded mix one side surface top, aeration tube is provided with a plurality of pore solarization air caps, and solarization air cap vertically upward; Aeration tube top is provided with backflash, and ultrasonic generator is installed; Porous plate below is water tank, the inwall uniform loading nonmetal doping photocatalyst of water tank, the bottom of water tank is provided with ultraviolet sterilization lamp, and nanometer aeration head is set between the space of ultraviolet sterilization lamp, and in water tank, remaining space is filled with semi-conductor load filler; The water outlet in one-level flow-disturbing nanometer aeration recoil sieving pond connects in biofilm reactor;
Biofilm reactor bottom offers mudhole, and biofilm reactor inside is positioned at mud discharging mouth top and is provided with nanometer aeration dish, and there is stirrer nanometer aeration dish top, and on the filler in biofilm reactor, growth has aerobic biologic membrane; Temperature controller is installed in biofilm reactor, and this temperature controller connects and controls temperature-sensitive control head and the heating zone that is placed in biofilm reactor inside; The water outlet of biofilm reactor is connected to flocculation basin;
Flocculation basin bottom offers mudhole, is positioned at mud discharging mouth top and is provided with nanometer aeration head in flocculation basin, and nanometer aeration head top is provided with stirrer, the other grug feeding jar that holds coagulating agent that is provided with of stirrer; The water outlet of flocculation basin is connected with secondary flow-disturbing nanometer aeration recoil sieving pond by a hydro-pump;
Secondary flow-disturbing nanometer aeration recoil sieving pond is identical with one-level flow-disturbing nanometer aeration recoil sieving pool structure, and the water outlet in secondary flow-disturbing nanometer aeration recoil sieving pond directly imports in settling pit;
Settling pit bottom offers mudhole, and top is provided with stirrer, and a part of supernatant liquor of settling pit input one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration by hydro-pump and recoiled in the water tank in sieving pond and use for back flushing.
2. quick treatment device according to claim 1, wherein, the Cavltation aerator of Eddy concave air-floatation apparatus is consisted of impeller and motor.
3. quick treatment device according to claim 1, wherein, the nanometer aeration head of one-level flow-disturbing nanometer aeration recoil sieving pond, secondary flow-disturbing nanometer aeration recoil sieving pond and flocculation basin, and the nanometer aeration dish of biofilm reactor all connects a nanometer aeration machine separately.
According to described in claim 1 or 3 quick treatment device, wherein, the porous plate in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond is comprised of two-layer porous plate therebetween one deck stainless steel gauze.
5. quick treatment device according to claim 4, wherein, the semi-conductor load filler in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond is nano-TiO 2powder loads on solid netted polypropylene filler.
6. quick treatment device according to claim 5, wherein, the compounded mix in one-level flow-disturbing nanometer aeration recoil sieving pond is the red mud molecular sieve filling of particle diameter 3-50mm; The compounded mix in secondary flow-disturbing nanometer aeration recoil sieving pond is zeroth order Nanoscale Iron and the quartz sand filler of particle diameter 0.5-1.0mm.
7. quick treatment device according to claim 1, wherein, the grug feeding jar on flocculation basin is connected with flocculation basin by dosing valve, and the coagulating agent in grug feeding jar is polymerize aluminum chloride+cationic polyacrylamide, and the amount ratio of substance is 20:1.
8. utilize quick treatment device described in claim 1 to carry out the treatment process of kitchen garbage, waste-water:
Sewage enters in the aeration zone of Eddy concave air-floatation apparatus, the microbubble producing with Cavltation aerator fully mixes, microbubble takes suspended solid to the water surface in the process rising, and laterally from flowing in Gua Zha district, in Gua Zha district, cleaning shoe turns round under the gearing by sprocket wheel at electric motor, along liquid level operation, suspended substance is scraped to dreg collecting slot, sewage flows into exhalant region through two flaps below liquid level, traverse baffle can guarantee that the liquid in groove can not flow into mud discharging pipeline, carry out secondary sedimentation simultaneously, prevent that mud from entering exhalant region; Sewage after cavitation aerating apparatus is processed imports in one-level flow-disturbing nanometer aeration recoil sieving pond and carries out sieving processing;
In one-level flow-disturbing nanometer aeration recoil sieving pond, the nanometer aeration air inlet of compounded mix is O 2, for clean filler, the nanometer aeration air inlet of the water tank in one-level flow-disturbing nanometer aeration recoil sieving pond is O 3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, and Nano grade O 3bubble and ultraviolet sterilization lamp, semi-conductor load filler coexist in water tank, improve advanced oxidation effect, effectively improve OH production rate; One-level flow-disturbing nanometer aeration recoil sieving pond water outlet directly imports and in biofilm reactor, processes further removal pollutent;
Biofilm reactor is controlled at 25-35 ℃ by temperature under the synergy of temperature controller, temperature-sensitive control head and heating zone, according to different its hydraulic detention times of influent quality, is 2-24h, and biofilm reactor water outlet imports in flocculation basin;
The dosing valve of opening flocculation basin adds coagulating agent, opening nanometer aeration machine evenly mixes coagulating agent with sewage, cause micro swirl effect to carry out flocculation treatment to tiny suspension flco in sewage, flocculation basin supernatant liquor enters secondary flow-disturbing nanometer aeration recoil sieving pond by hydro-pump and carries out sieving processing;
In secondary flow-disturbing nanometer aeration recoil sieving pond, the nanometer aeration air inlet of compounded mix is O 2, for clean filler, the nanometer aeration air inlet of the water tank in secondary flow-disturbing nanometer aeration recoil sieving pond is O 3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, and Nano grade O 3bubble and ultraviolet sterilization lamp, semi-conductor load filler coexist in water tank, improve advanced oxidation effect, effectively improve OH production rate;
The water outlet in secondary flow-disturbing nanometer aeration recoil sieving pond imports in settling pit, makes remaining suspended substance and filler precipitation in sewage, and supernatant liquor is directly used in middle water reuse;
Effluent recycling to the biofilm reactor in secondary flow-disturbing nanometer aeration recoil sieving pond is intake, regulating water quality stimulating plant process of growth secretion secondary substance.
9. method according to claim 8, wherein, the supernatant liquor of settling pit, when one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond need back flushing, input one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration by hydro-pump and is recoiled in the water tank in sieving pond and use for back flushing.
10. method according to claim 8, wherein, the average irradiation dose of ultraviolet sterilization lamp in one-level flow-disturbing nanometer aeration recoil sieving pond and secondary flow-disturbing nanometer aeration recoil sieving pond is at 300J/m 2above.
CN201410359330.XA 2014-07-25 2014-07-25 A kind of quick treatment device of kitchen garbage, waste-water and method Expired - Fee Related CN104193082B (en)

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CN107029457A (en) * 2017-05-12 2017-08-11 象州县科学技术情报研究所 Natural sedimentation formula separation of solid and liquid cleaning shoe device
CN107954556A (en) * 2016-01-14 2018-04-24 张作玮 A kind of food and drink waste water oil removal treatment system
CN109748352A (en) * 2019-02-25 2019-05-14 东北师范大学 Based on the photocatalysis coupled device and method for carrying out water process of flow control microvesicle-
CN110369438A (en) * 2018-12-26 2019-10-25 田城德 A kind of kitchen garbage separation and recovery method
CN110422950A (en) * 2019-06-05 2019-11-08 南京化工园博瑞德水务有限公司 A kind of processing unit and method for production of propylene oxide waste water

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CN107954556A (en) * 2016-01-14 2018-04-24 张作玮 A kind of food and drink waste water oil removal treatment system
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