CN104591443B - A kind of recycling equipment of aquaculture agricultural effluent - Google Patents

A kind of recycling equipment of aquaculture agricultural effluent Download PDF

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Publication number
CN104591443B
CN104591443B CN201510063021.2A CN201510063021A CN104591443B CN 104591443 B CN104591443 B CN 104591443B CN 201510063021 A CN201510063021 A CN 201510063021A CN 104591443 B CN104591443 B CN 104591443B
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aquaculture
oxidation
water
oxygen
clarifier
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CN104591443A (en
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周敬河
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Beikyushu Ecological Technology Co.,Ltd.
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Hebei Chengrun Environmental Engineering Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone

Abstract

The present invention relates to a kind of recycling equipment of aquaculture agricultural effluent, belong to agricultural effluent treatment facility field, it comprises flocculation plant, clarifier and oxidation oxygen-increasing device, flocculation plant can flocculate the solid particle in waste water together, through clarifier clarification, supernatant overflow, to being oxidized in oxygen-increasing device, is passed through ozone oxidation sterilizing again, improve the dissolved oxygen tolerance in water through oxygenation again, thereby the water obtaining can return in aquaculture. The recycling equipment of a kind of aquaculture agricultural effluent that the present invention proposes, the agricultural effluent producing in reusable edible aquaculture process, cost is low, simple to operate, technological process is short, and the mud obtaining can return to the fertilizer that does agricultural planting, the water water quality recycling improves greatly, can return and carry out aquaculture.

Description

A kind of recycling equipment of aquaculture agricultural effluent
Technical field
The present invention relates to agricultural effluent treatment facility field, be specifically related to a kind of circular treatment of aquaculture agricultural effluentEquipment.
Background technology
Over nearly 20 years, intensive aquaculture industry at home and abroad develops rapidly. World Water output reached 1.2 hundred million in 1996T, wherein 25% for propagating artificially. With this understanding, contained nitrogen, the phosphorus of feed of throwing in breeding process approximately only has 9.1% and17.4% is assimilated by fish, and the pollutant that its remaining feed and fish excreta form causes severe contamination to water body, deposit etc.,Cause the degeneration of shallow lake, cause local marine site that red tide occurs; All kinds of chemicals and the antibiotic that in aquaculture, useResidue also polluted water environment, some biological habitats are destroyed, disturbed procreation and the existence of wild stocks,Bio-diversity is reduced; Water pollution simultaneously restricts the development of aquaculture conversely, therefore, and the processing of aquiculture waste waterReceive publicity with recycling gradually. Aquiculture waste water processing method mainly contains physical treatment process, method of chemical treatment, physicsLearn facture, biological treatment.
1 physical treatment process 1) filtration method is because the residual bait of the residue in breeding wastewater and aquaculture organism excreta etc. are largePart exists with suspended state bulky grain form, and therefore adopting physical filtering method to remove is the most quick, economic method. Commonly useFilter plant has mechanical filter, filter-press, sand filter etc. In actual treatment engineering, mechanical filter (Microfilter)It is more, the good mode of filter effect of application. Zeolite filter has concurrently and filters and adsorption function, not only can remove suspensionThing, simultaneously again can be by dissolved pollutants such as the effective removal heavy metal of suction-operated, ammonia nitrogens.
2) foamet foam separates according to the principle of adsorption, the gas that utilizes ventilation bubbling to form in liquid phaseBubble separates the solute in liquid phase or particle for carrier, therefore claims again foam adsorbing separation. Its principle is to processed waterIn body, pass into air, make surface reactive material in water by micro-bubble sorption, and float to the water surface with bubble and form bubbleFoam, then separating water surface foam, thus reach the object of removing solubilised state and suspended pollutant in waste water. Because foam separatesTechnology not only can just be removed the organic matters such as protein not being mineralized into before amide and other noxious materials, avoidsNoxious material in water body, accumulate, and can provide necessary dissolved oxygen to breeding water body, to safeguarding breeding water body ecologyEnvironment has good action.
It is the principle according to absorption that foam separates, and to containing bubbling in the liquid of surface reactive material, makes the surface in liquidIt is upper that active material is gathered in gas-liquid interface (surface of bubble), forms froth bed, by froth bed and liquid phase above main body of liquidMain body separately, just can reach the object of concentrated surface reactive material (at froth bed) and purification liquid phase main body. The thing being concentratedMatter can be surface reactive material, can be also can with the material of surface reactive material phase complexing, but they must possess and certainThe surface reactive material of one type can complexing or the huge legendary turtle ability of closing.
2 methods of chemical treatment 1) ozone treatment method seawater industrial culturing waste water exists aquaculture organism excreta etc. outstandingFloating thing, and the material such as ammonia nitrogen, biodegradable organic, and there is refractory organic. Therefore, utilize smellyThe oxidation of the chemical oxidizing agents such as oxygen, hydrogen peroxide, chlorine dioxide, bleaching liquid, oxidation Decomposition difficult for biological degradation solubilised state hasMachine thing is the Main Means of breeding wastewater advanced treating. Therefore adopt O3/UV technique, can improve treatment effeciency and can reduce again smellyThe consumption of oxygen. Can reach the object of purification of water quality and water oxygenation with O3/UV technology purification lake water. The cleaning principle of ozone isIts oxidation-reduction potential in water is 2.07V, higher than chlorine (1.36V) and chlorine dioxide (1.5V). It can destroy and divideSeparate the cell membrane (film) of cell, diffusion is infiltrated in cell rapidly, thus kill pathogenic bacteria. The intermediate material that ozone decomposes in waterHydroxyl radical free radical (OH), has very strong oxidisability, can decompose the difficult organic matter decomposing of general oxidant. Therefore, use ozoneProcess waste water, can either go out rapidly except harmful substances such as bacterium, virus and ammonia, can increase again oxygen in water, thereby reach cleanChange the object of breeding wastewater.
2) electrochemical process electrochemistry is the science of research electricity and chemical reaction correlation. Electricity and chemical reaction are done mutuallyWith completing by battery, also can utilize high-pressure electrostatic to discharge to realize, the two is referred to as electrochemistry, and the latter is electrochemical oneIndividual branch, claims discharge chemistry. In the processing of aquiculture waste water, remove the nitrite and the ammonia that in water, dissolve by electrochemical processNitrogen studies result shows, time and energy consumption that nitrite is removed completely reduce along with the increase of conductivity, input currentWhile being 2A to the maximum, consume energy minimum, pH does not almost affect with respect to input current and electrical conductivity; Favourable under acid conditionIn the removal of nitrite, alkali condition is conducive to the removal of ammonia, and the removal speed of ammonia is lower than the removal speed of nitrite.
3 biological treatment activated sludge processes are main method of the biological wastewater treatment taking activated sludge as main body.Activated sludge process is in waste water, to pass into continuously air, the sludge-like forming because of aerobic microbial reproduction after certain hourFlocculate. On it, perching taking zoogloea as main micropopulation, thering is very strong absorption and the ability of oxidation of organic compounds. Typical caseActivated sludge process formed by aeration tank, sedimentation basin, sludge reflux system and excess sludge removal system. Sewage and backflowActivated sludge enters together aeration tank and forms mixed liquor. The compressed air of sending here from air compressor station, by being laid on aerationThe air-diffuser of bottom, pond, enters in sewage with the form of tiny bubble, and object is the dissolved oxygen content increasing in sewage,Also make the state of mixed liquor in vigorous agitation, shape suspended state. Dissolved oxygen, activated sludge mix mutually, fully connect with sewageTouch, activated sludge reaction is normally carried out. First stage, the organic pollution in sewage is adsorbed on by activated sludge particlesOn zoogleic surface, this is due to its huge specific area and polysaccharide emplastic. Some larger molecular organicses simultaneouslyUnder the effect of bacterium ectoenzyme, be decomposed into small organic molecule. Second stage, microorganism, under the condition of oxygen abundance, absorbs thisA little organic matters, and oxidation Decomposition, form carbon dioxide and water, and a part is supplied with the propagation procreation of self. Activated sludge reaction entersThe result of row, dirty organic pollutants is degraded and is removed, and activated sludge itself is multiplied growth, and sewage is able to onlyChange and process. Mixed liquor after activated sludge purification effect enters secondary sedimentation tank, the activated sludge suspending in mixed liquor andOther solid matters here precipitate and separate with water, and the sewage after clarification is discharged system as processing water. Dense through precipitationThe mud of contracting is discharged from sedimentation basin bottom, and wherein major part is back to aeration tank as seed sludge, to ensure in aeration tankSuspended sediment concentration and microorganism concn; The microorganism of propagation is discharged from system, is called " excess sludge ". In fact, polluteThing has been transferred in these excess sludges to a great extent from sewage.
Summary of the invention
The present invention proposes a kind of recycling equipment of aquaculture agricultural effluent, reusable edible aquaculture processThe agricultural effluent of middle generation, cost is low, simple to operate, and technological process is short, and the mud obtaining can return to the fertilizer that does agricultural plantingMaterial, the water water quality recycling improves greatly, can return and carry out aquaculture.
The technical solution used in the present invention is circulation place that is specifically achieved in that a kind of aquaculture agricultural effluentReason equipment, comprises flocculation plant, clarifier and oxidation oxygen-increasing device, and described flocculation plant comprises flocculation still, described waddingSolidifying still bottom is provided with premixer, and described premixer's side is communicated with flocculant inlet pipe and waste water inlet pipe, described flocculantThe inlet pipe other end is connected with flocculant pump, on described flocculant inlet pipe, is provided with spinner flowmeter, and described waste water inlet pipe is anotherOne end is connected with waste water pump, and described flocculation still inside is provided with paddle, and described paddle top is connected with stirring motor,Described flocculation still side top is provided with overfall, and the outlet of described overfall is arranged on top one side of clarifier,In described clarifier, be provided with clarification inclined tube, described clarifier top opposite side is provided with clarified solution overfall, instituteThe oxidation oxygen-increasing device of stating comprises oxidation disinfection bath and oxygenation pond, and the outlet of described clarified solution overfall is arranged on oxidation sterilizingTop one side in pond, is provided with ozonizer in described oxidation disinfection bath, between described oxidation disinfection bath and oxygenation pond, arrangesHave overflow baffle, in described oxygenation pond, be provided with oxygen-adding tube, described oxygenation pond bottom is provided with drainpipe.
In the middle of described top, premixer, be provided with outlet, described outlet is under paddle. When uselessAfter water and flocculant mix in premixer, due to the draft of stirring, mixed waste water can be pumped in flocculation still.
Described clarifier bottom is that tapered, described clarifier bottom is provided with mud outlet. Can conveniently become silted upThe cleaning of mud and discharge.
Described ozonizer passes into the bottom of oxidation disinfection bath, is provided with multiple passages on described ozonizer. Can be moreAdd the efficiency of oxidation and the sterilization of effective raising ozone, overcome the little shortcoming of ozone solubility in water, improved smellyThe utilization rate of oxygen, reduces costs.
Described oxygen-adding tube is to be provided with multiple apertures on dendritic, described oxygen-adding tube. Improve the efficiency of oxygen, increasedHigh oxygen meltage in water.
By mixing of waste water and flocculant, can make the deposition efficiency of mud greatly increase, improve the processing of waste waterAmount, has reduced the time that waste water is clarified, and has improved the efficiency of wastewater treatment. The deposition sloped tube simultaneously arranging, can give up by effectively catchingSolid mud in water, clarifier bottom is tapered simultaneously, tapered bottom is provided with mud outlet, can facilitate the row of mudGo out, in simultaneous oxidation sterilization pool, be provided with ozonizer, ozonizer passes into the bottom of oxidation disinfection bath, is provided with multiple on ozonizerPassage. The oxidable ammonia nitrogen of ozone and organic matter, decompose it, thereby increase water quality, and avoids the eutrophication of water, simultaneously smellyOxygen can kill bacterium and pathogen, avoids these bacteriums and pathogen to cause the large area of aquatic products sick and dead, simultaneously smellyOxygen pipe is laid on oxidation disinfection bath bottom, is provided with multiple passages on ozonizer simultaneously, more effectively improves the oxygen of ozoneThe efficiency of changing and sterilizing, has overcome the little shortcoming of ozone solubility in water, has improved the utilization rate of ozone, reduces costs.Water after oxidation sterilizing enters oxygenation pond, is provided with oxygen-adding tube in oxygenation pond, and oxygen-adding tube is to arrange on dendritic, described oxygen-adding tubeThere are multiple apertures. Improve the efficiency of oxygen, increased the oxygen meltage in water.
The invention has the beneficial effects as follows: the agricultural effluent producing in reusable edible aquaculture process, cost is low, operationSimply, technological process is short, and the mud obtaining can return to the fertilizer that does agricultural planting, and the water water quality recycling improves greatly, canReturn and carry out aquaculture.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Wherein: 1-flocculation plant, 2-clarifier, 3-is oxidized oxygen-increasing device, the 4-still that flocculates, 5-premixer, 6-flocculantInlet pipe, 7-waste water inlet pipe, 8-flocculant pump, 9-spinner flowmeter, 10-waste water pump, 11-paddle, 12-stirring motor, 13-overflowsHead piece, 14-clarifies inclined tube, 15-clarified solution overfall, 16-oxidation disinfection bath, 17-oxygenation pond, 18-ozonizer, 19-overflow gearPlate, 20-oxygen-adding tube, 21-drainpipe, 22-outlet, 23-mud outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
As accompanying drawing, the technical solution adopted for the present invention to solve the technical problems is: a kind of aquaculture agricultural effluentRecycling equipment, comprises flocculation plant 1, clarifier 2 and oxidation oxygen-increasing device 3, and described flocculation plant 1 comprises flocculation still4, described flocculation still 4 bottoms are provided with premixer 5, and described premixer's 5 sides and flocculant inlet pipe 6 and waste water inlet pipe 7 connectLogical, described flocculant inlet pipe 6 other ends are connected with flocculant pump 8, on described flocculant inlet pipe 6, are provided with spinner flowmeter9, described waste water inlet pipe 7 other ends are connected with waste water pump 10, and described flocculation still 4 inside are provided with paddle 11, describedPaddle 11 tops are connected with stirring motor 12, and described flocculation still 4 side tops are provided with overfall 13, described overfall13 outlet is arranged on top one side of clarifier 2, is provided with clarification inclined tube 14 in described clarifier 2, and described is clearClear device 2 top opposite sides are provided with clarified solution overfall 15, and described oxidation oxygen-increasing device 3 comprises oxidation disinfection bath 16 and increasesOxygen pond 17, the outlet of described clarified solution overfall 15 is arranged on top one side of oxidation disinfection bath 16, described oxidation sterilizingIn pond 16, be provided with ozonizer 18, between described oxidation disinfection bath 16 and oxygenation pond 17, be provided with overflow baffle 19, describedIn oxygenation pond 17, be provided with oxygen-adding tube 20, described oxygenation pond 17 bottoms are provided with drainpipe 21.
Described premixer is provided with outlet 22 in the middle of 5 tops, described outlet 22 in paddle 11 just underSide. After waste water and flocculant mix in premixer, due to the draft of stirring, mixed waste water can be pumped into flocculationIn still.
Described clarifier 2 bottoms are that tapered, described clarifier 2 bottoms are provided with mud outlet 23. Can be squareJust the cleaning of mud and discharge.
Described ozonizer 18 passes into the bottom of oxidation disinfection bath 16, on described ozonizer 18, is provided with multiple ventilationsHole. Can more effectively improve the efficiency of oxidation and the sterilization of ozone, overcome the little shortcoming of ozone solubility in water, carryThe high utilization rate of ozone, reduces costs.
Described oxygen-adding tube 20 is to be provided with multiple apertures on dendritic, described oxygen-adding tube 20. Improve the effect of oxygenRate, has increased the oxygen meltage in water.
Waste water and flocculant are added according to certain ratio by waste water pump and flocculant pump, on flocculant inlet pipeBe provided with spinner flowmeter, can conveniently measure flocculation dosage, then flocculant enters the premixer in flocculation still together with waste water,Tentatively mix, then discharge and enter in flocculation still from outlet, through stirring, then flow into clarifier from overfallIn, the deposition sloped tube that clarifier arranges, the solid mud in can effectively catching waste water, clarifier bottom is tapered simultaneously,Tapered bottom is provided with mud outlet, can facilitate the discharge of mud, and the supernatant of clarification enters oxidation from clarified solution overfallIn sterilization pool, be provided with ozonizer in oxidation disinfection bath, ozonizer passes into the bottom of oxidation disinfection bath, is provided with many on ozonizerIndividual passage. The oxidable ammonia nitrogen of ozone and organic matter, decompose it, thereby increase water quality, and avoids the eutrophication of water, simultaneouslyOzone can kill bacterium and pathogen, avoids these bacteriums and pathogen to cause the large area of aquatic products sick and dead, simultaneouslyOzonizer is laid on oxidation disinfection bath bottom, be provided with multiple passages on ozonizer simultaneously, more effectively improves ozoneThe efficiency of oxidation and sterilization, has overcome the little shortcoming of ozone solubility in water, has improved the utilization rate of ozone, is lowered intoThis. Water after oxidation sterilizing enters oxygenation pond from overflow baffle, is provided with oxygen-adding tube in oxygenation pond, and oxygen-adding tube is dendritic, described inOxygen-adding tube on be provided with multiple apertures. Improve the efficiency of oxygen, increased the oxygen meltage in water. Water after oxygenationDischarge from drainpipe, return and carry out aquaculture, the mud of discharging from mud outlet can return as agriculture owing to being rich in N, P etc.The fertilizer of crop.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff is completeEntirely can, not departing from the scope of this invention technological thought, carry out various change and amendment. The technology of this inventionProperty scope is not limited to the content on description, must determine its technical scope according to claim scope.

Claims (5)

1. a recycling equipment for aquaculture agricultural effluent, comprises that flocculation plant (1), clarifier (2) and oxidation increaseOxygen device (3), is characterized in that: described flocculation plant (1) comprises flocculation still (4), and described flocculation still (4) bottom is provided withPremixer (5), described premixer (5) side is communicated with flocculant inlet pipe (6) and waste water inlet pipe (7), and described flocculant entersPipe (6) other end is connected with flocculant pump (8), on described flocculant inlet pipe (6), is provided with spinner flowmeter (9), describedWaste water inlet pipe (7) other end is connected with waste water pump (10), and described flocculation still (4) inside is provided with paddle (11), describedPaddle (11) top is connected with stirring motor (12), and described flocculation still (4) side top is provided with overfall (13), described inThe outlet of overfall (13) be arranged on top one side of clarifier (2), in described clarifier (2), be provided with clarification tiltedlyPipe (14), described clarifier (2) top opposite side is provided with clarified solution overfall (15), described oxidation oxygen-increasing device(3) comprise oxidation disinfection bath (16) and oxygenation pond (17), the outlet of described clarified solution overfall (15) is arranged on oxidation sterilizingTop one side in pond (16), is provided with ozonizer (18) in described oxidation disinfection bath (16), described oxidation disinfection bath (16)And between oxygenation pond (17), be provided with overflow baffle (19), and in described oxygenation pond (17), be provided with oxygen-adding tube (20), describedOxygenation pond (17) bottom is provided with drainpipe (21).
2. the recycling equipment of a kind of aquaculture agricultural effluent according to claim 1, is characterized in that: describedIn the middle of top, premixer (5), be provided with outlet (22), described outlet (22) is under paddle (11).
3. the recycling equipment of a kind of aquaculture agricultural effluent according to claim 1, is characterized in that: describedClarifier (2) bottom is that tapered, described clarifier (2) bottom is provided with mud outlet (23).
4. the recycling equipment of a kind of aquaculture agricultural effluent according to claim 1, is characterized in that: describedOzonizer (18) passes into the bottom of oxidation disinfection bath (16), on described ozonizer (18), is provided with multiple passages.
5. the recycling equipment of a kind of aquaculture agricultural effluent according to claim 1, is characterized in that: describedOxygen-adding tube (20) is to be provided with multiple apertures on dendritic, described oxygen-adding tube (20).
CN201510063021.2A 2015-02-08 2015-02-08 A kind of recycling equipment of aquaculture agricultural effluent Active CN104591443B (en)

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CN106495402A (en) * 2016-11-25 2017-03-15 青海七彩花生物科技有限公司 A kind of biotechnology useless water purifying means of purification and its using method
CN106430738A (en) * 2016-12-05 2017-02-22 合肥俊刚机械科技有限公司 Agricultural wastewater purification device
CN106977048A (en) * 2017-03-31 2017-07-25 厦门大学 A kind of combined system of hydroxyl radical free radical processing plant recirculating aquaculture water
CN107739126A (en) * 2017-10-18 2018-02-27 安徽工程大学 A kind of sewage recycling device for livestock and poultry cultivation
CN108394999B (en) * 2018-04-25 2020-11-06 上海海洋大学 Biological filtering device of circulating shallow water culture system and control method thereof
CN113072206A (en) * 2021-03-26 2021-07-06 江西清绿环保有限公司 Unpowered slag separation tank for pig raising wastewater

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