CN105776688A - Treatment method of algae-laden water or high-concentration organic waste water - Google Patents
Treatment method of algae-laden water or high-concentration organic waste water Download PDFInfo
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- CN105776688A CN105776688A CN201610184492.3A CN201610184492A CN105776688A CN 105776688 A CN105776688 A CN 105776688A CN 201610184492 A CN201610184492 A CN 201610184492A CN 105776688 A CN105776688 A CN 105776688A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000010815 organic waste Substances 0.000 title abstract description 5
- 241000195493 Cryptophyta Species 0.000 claims abstract description 48
- 239000002351 wastewater Substances 0.000 claims abstract description 40
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000001699 photocatalysis Effects 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 14
- 238000007146 photocatalysis Methods 0.000 claims abstract description 12
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- 238000004062 sedimentation Methods 0.000 claims abstract description 3
- 238000001556 precipitation Methods 0.000 claims description 35
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- 239000002101 nanobubble Substances 0.000 claims description 10
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- 239000010408 film Substances 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
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- 238000000354 decomposition reaction Methods 0.000 claims description 8
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- 238000007790 scraping Methods 0.000 claims description 7
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- 230000001376 precipitating effect Effects 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 2
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- 239000000377 silicon dioxide Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 9
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- 230000015556 catabolic process Effects 0.000 abstract description 2
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- 238000005086 pumping Methods 0.000 abstract 1
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- 230000000694 effects Effects 0.000 description 17
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- 241000192700 Cyanobacteria Species 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
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- 229910052760 oxygen Inorganic materials 0.000 description 7
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- 230000003197 catalytic effect Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
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- 230000008093 supporting effect Effects 0.000 description 4
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- 235000020188 drinking water Nutrition 0.000 description 3
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- 239000003643 water by type Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- 238000009300 dissolved air flotation Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
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- 239000003673 groundwater Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
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- 235000016425 Arthrospira platensis Nutrition 0.000 description 1
- 240000002900 Arthrospira platensis Species 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
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- 241000168517 Haematococcus lacustris Species 0.000 description 1
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- 108010049746 Microcystins Proteins 0.000 description 1
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- 229910010413 TiO 2 Inorganic materials 0.000 description 1
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- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
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- 239000002352 surface water Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a treatment method of algae-laden water or high-concentration organic waste water, belonging to the field of sewage treatment. The method comprises the following steps: pumping the organic waste water into an improved air floatation-sedimentation integrated tank, carrying out micro-nano aeration treatment by adopting an cavitation technology, using air source ozone or pure oxygen source ozone as an air source, and forming a three-phase hybrid system containing water, air and organic matters; adding a flocculating agent and a coagulant aid into the integrated tank; turning on an ultraviolet lamp for irradiating, and oxidizing and decomposing the organic matters in the waste water under photocatalysis of a titanium dioxide film; enabling the light organic matters or algae residue in the treated water to flow into a sludge tank through a sediment scraper, then enabling the organic matters or algae residue in the sludge tank to flow into a sludge outlet together with sludge at the bottom of the integrated tank through a sludge down pipe for collection, and enabling clear water to flow out from a clear water outlet. According to the treatment method, a two-stage AOP reaction is carried out on a treatment medium while three-phase separation is realized in a system, so that the problem of difficulty in realizing up-to-standard emission of high-concentration algae slurry water and degradation-resistant high-concentration organic waste water after deep treatment can be efficiently solved.
Description
Technical field
The present invention relates to technical field of sewage, particularly to a kind of algae or high concentrated organic wastewater
Processing method.
Background technology
Cyanophyceae is that on the earth, photosynthetic oxygen evolution the earliest is biological, becomes from the atmospheric environment of anaerobic earth surface having
Oxygen environment has played huge effect.Algae contains biological nitrogen fixation enzyme, and overwhelming majority algae can utilize luminous energy to drive
Move and directly the carbon in air and water body, nitrogen are carried out biological nitrogen fixation and carbon sequestration.This ability can improve soil
Fertility, makes crop yield.Due to the superpower nitrogen fixing capacity of algae and reproductive capacity in water, algae is water body
The person who has rendered outstanding service evolved, but because algae moisture content is high, be widely distributed in water, individual small and be difficult to from water body
Remove and separate.Therefore, algae is because breeding is vigorous, life cycle is short and to the contention of living environment resource
Become the mark that water environment deteriorates rapidly.The algae also having becomes the food of people, as famous Haematococcus Pluvialis,
Deliver vegetables and Nostoc Commune, spirulina etc..
But, cyanophyceae there is also following main harm: in nutritious water body, and some cyanophyceae is often summer
Amount reproduction, and the offscum of bad smell is had in the water surface one layer of aeruginous of formation, it is referred to as " wawter bloom ", on a large scale
Blue algae bloom, be referred to as " green tide ", and " red tide " that ocean occurs be corresponding.Green tide causes water quality to dislike
Change, exhaust water oxygen gas time serious and cause the death of Fish.More seriously, some kind in cyanophyceae
Also can produce Algae toxins (microcystins is called for short MCs), containing a large amount of MCs in the green tide of about 50%.
MCs, in addition to directly Fish, people and animals being produced murder by poisoning, is also hepatocarcinoma and the important of malignant tumor of digestive tract lures
Cause.At present the large, medium and small lake of China also faces serious pollution problem, the most representational be Taihu Lake,
Chaohu, Dian Chi, River, Lake Xingyun etc..
It addition, the drinking water sources of China's wide geographic area also faces serious pollution problem.A large amount of high concentrations have
Machine industrial wastewater not standard discharge, the following area overwhelming majority the most treated direct discharge of sanitary sewage at county level,
The agrochemicals such as the unreasonable use in vast rural area chemical fertilizer, pesticide, are on the rise on surface water impact.
Major part city, the whole nation is own with the earth's surface in area and underground fresh-water resource by water quality deterioration and aquatic ecosystem quilt
The threat destroyed.The section in the whole nation more than 1/3 is contaminated, and the urban waters of more than 90% is seriously polluted, and 50%
Key cities water head site do not meet drinking water standard.China's city water resource quality is the most poor, major part city
City and area level of ground water decline continuously, define the Trend of Groundwater Descent Funnel of different scales, and situation is the tightest
High.Though cause the basic reason of water resource severe contamination be substantial amounts of productive life waste water unprocessed or through place
Reason but below standard just enter environment.These waste water being underutilized both had polluted environment, wasted again resource,
In the urgent need to carrying out recycling.The organic pollution one of especially high concentration in various pollutant in water
Not only there is time length, migration circle extensively in denier in water, and endangers big, process difficulty after entering natural environment
Degree arduousness.
It is contemplated that the deficiency for the Treatment process of existing lake richness blue algae water includes:
1, after water processes, cyanophyceae processes inactivation technology entirely, and cyanophyceae still survives, the algae after the disintegration of cyanophyceae vesicle
Toxin dissipation etc., the most mishandling meeting causes the secondary contact scar of other water bodys, soil；
2, eutrophication water is little through simple dissolved air flotation change of water quality, such as: Taihu Lake and Dianchi Lake
Body flocculates through dosing after the separation of simple algae, and change of water quality is little, only improve only one-level.
Summary of the invention
The invention provides the processing method of a kind of algae or high concentrated organic wastewater, solve existing organic
Wastewater and sewage treatment effect is bad and the problem that is easily generated secondary contact scar.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of algae or the processing method of high concentrated organic wastewater, comprise the following steps:
(1) one-level AOP: air supporting-precipitation integral pond organic wastewater suction improved, uses cavitation technique
Carrying out micro-nano Air Exposure, source of the gas uses air source ozone or pure oxygen source of the gas ozone, forms water, gas, has
The three-phase mixed system of machine thing；It is at gas that difference is compared with tradition flotation tank in the air supporting-precipitation integral pond of improvement
Blister head has installed swash plate or inclined tube additional after reaction zone, and during making three phase separation, SS contamination precipitation is faster, point
From in hgher efficiency, significantly improve effluent quality and hydraulic detention time, more traditional airfloat equipment reduces volume
And floor space；Adding the ozone of concentration 40mg/L in the air supporting-precipitation integral pond of improvement, ozone is micro-
Measure present in nano bubble and also increased, this micro-nano bubble and algae or high concentrated organic wastewater
Also it is improved with blue algae water contact rate so that it is reaction is more abundant, and the cyanophyceae in algae is through the first step
The protein structure of effect cyanophyceae is inactivated and Algae toxins is fixed, and be different from other modes is this process
Before algae protein matter structure can not be allowed to be inactivated, vesicle is crushed, thus discharges Algae toxins polluted-water and environment；
(2) in the air supporting-precipitation integral pond of improvement, flocculant, flocculation aid are added；
(3) two grades of AOP: open Burdick lamp and be irradiated, under the photocatalysis of titanium deoxid film,
Organic substance in photochemical catalytic oxidation and Decomposition Wastewater, aoxidizes incomplete cyanophyceae egg here during upper one
White matter structure is by UV+TiO2Be inactivated under photocatalytic oxidation, Algae toxins is fixed；
(4) three-phase thing is separated: swim in the lightweight algae-residue above supernatant or other Organic substances by scraping slag
Machine flows into sludge sump, then by mud down pipe together with the precipitation bottom the air supporting-precipitation integral pond of improvement
Mud flows into sludge outlet together and is collected, according to process medium and separation purpose different can also and bottom
Sludge outlet is taken their own roads；Clear water is flowed out by clear water output.
Wherein it is preferred to, the cavitation technique in described step (1) uses equipment to include the sharp nanometer that declines of recoil
Bubble release and air water hybrid equalizer, it is that the applicant applies for that recoil swashs the nano bubble release that declines
Another patented technology (ZL201420389430.2), mixing wastewater with air equalizer be the applicant apply for another
One patented technology (ZL201420389556.X).
Wherein it is preferred to, described step (3) flocculant dosage is 0.05～0.3ml/L, described flocculation aid
Dosage be 0.04～0.6ml/L.
Wherein it is preferred to, the intensity of described Burdick lamp is 45～55mJ/cm2, irradiation time is according to processing Jie
Matter, difficulty are different with requirement, are adjusted flexibly within 0.5 hour and 7 hours.
Wherein it is preferred to, described titanium dichloride load is in the pool wall in the air supporting-precipitation integral pond of described improvement
In surrounding and inclined tube, form one layer of anatase titanium dioxide nano thin-film.It is easy that this technology overcomes titanium dioxide
Running off and the difficult difficulty reclaimed and make response area, efficiency increase, titanium dioxide is at normal temperatures without selection oxygen
Changing the Organic substance in water, existing photocatalyst is inefficient, low to the utilization rate of visible ray, and titanium dioxide
The light-catalyzed reaction process of titanium, largely relies on the photon excitation of the first step, and Burdick lamp largely changes
Being apt to the present situation that natural light utilization efficiency is low, it is provided that sufficient ultraviolet, enough having excited titanium dioxide so having
The photon of titanium, is provided that enough energy,
Wherein it is preferred to, in described step (5), the sedimentation time is 0.5～1.5 hour.
The processing method of the present invention particularly relate to micro-nano cavitation air flotation technology to eutrophication algae-containing water or
Dense algae slurry carries out water, algae detached job.Wherein, in micro-nano cavitation technique, the volume of bubble and surface area
Relation can be represented by formula.The cubature formula of bubble is V=4 π/3r3, and the surface area formula of bubble is
A=4 π r2, two formula merge can obtain A=3V/r, i.e. V total=n A=3V is total/r.It is to say, at cumulative volume
In the case of constant (V is constant), the total surface area of bubble is inversely proportional to the diameter of single isolated bubbles.According to formula,
The bubble phase of the bubble of 10 microns and 1 millimeter compares, after under certain volume, the former specific surface area is theoretically
100 times of person.The contact area of air and water increases 100 times, and various response speeds too increase 100 times.
The present invention introduces ozone in micro-nano cavitation technique cavitation processes and replaces air, makes originally to have been provided with
The dissolved air flotation effect of nanometer air supporting cavitation effect possesses because using air source ozone or pure oxygen source of the gas ozone
Superpower ozone micro-nano cavitation Oxidation (super AOP effect), due to O3After micro-nano cavitation,
Micro-electrolysis reaction occurs in water, and its microbubble and water react and generate the higher band negative and positive of activity, nagative potential ion,
Rapidly form agglomerates with microorganism in water and pollutant, performance while playing high oxidation decomposition
Superior micro-electricity flocculation.Therefore compare tradition airfloat equipment can for different disposal medium, few with or
Person is without flocculant and flocculation aid.
Processed water body is after ozone cavitating oxidation air supporting effect, at three phase separator i.e.: " dissolved air flotation-
Precipitation integral equipment " in stop and plug-flow during continue by ultraviolet (UV) (1)+nanometer titanium dioxide
Titanium (TiO2) (8) super photocatalytic oxidation, when water body reaches at " three phase separator integration apparatus "
After the time of staying of regulation, because of eutrophication or organic wastewater pollute, microorganism is polluted and is caused rivers lake
In pool water, algae and other organic pollution, microorganism are in " oxidation of ozone micro-nano cavitation " and " UV+ nanometer
Optically catalytic TiO 2 aoxidizes " under (be called for short 2AOP process) superposition, the algae in water body and other micro-life
Thing is inactivated, and has that the Algae toxins protein of huge pollution and toxic hazard effect is oxidized to go out in frond to water body and environment
The comprehensive treatment technique of mineralising that work is fixing, other dissolubility organic pollutions are decomposed.
Conventional cavitation technique mainly utilizes ultrasonic cavitation technology, and it refers to deposit microbubble in a liquid at sound
The lower liquid of the effect of ripple produces pressure differential and growth and the dynamic process of collapse occurs, and the application utilizes independently
The recoil of invention swashs the nano bubble release that declines, and it is empty that rustless steel mixing wastewater with air homogenizer makes it produce another
Change effect Hydrodynamic cavitation, Hydrodynamic cavitation be by micro-nano bubble liquid under low pressure, the state of high flow rate
Make it produce Hydrodynamic cavitation, and the cavitation effect that this cavitation produces than ultrasound wave to exceed
50%-70%, the micro-nano bubbles volume of generation exceeds 20000% than under ultrasound wave generation effect, the energy of generation,
Effect is also improved, and cavitation makes water body local produce High Temperature High Pressure, sends out at High Temperature High Pressure water body
Estranged split and chain reaction: H2O→·OH+·H2, OH+ OH → H2O2, 2 H → H2. wherein H and H2O2All
It is high chemical and high oxidative, can be with soluble solute generation oxidation reaction in water, it is possible to by most in water
Number pollutant oxidation decomposes.The ozone of concentration 40mg/L is added in the air supporting-precipitation integral pond of improvement, smelly
Oxygen is measured present in the micro-nano bubble also to be increased, and this micro-nano bubble has with algae or high concentration
Machine waste water and blue algae water contact rate are also improved so that it is reaction is more abundant, and the cyanophyceae in algae passes through
First step effect cyanophyceae destructurized.
Titanium dioxide belongs to a kind of n-type semiconductor, and its energy gap is 3.2ev, when it is by wavelength
When Burdick lamp less than or equal to 387.5nm irradiates, photochemical catalytic oxidation is most effective.Nano titanium oxide light
The oxidizing potential in raw hole is calculated as 3.0V with standard hydrogen current potential, than the 2.07V and the 1.36V of chlorine of ozone
Much higher, there is the strongest oxidisability.Highly active photohole has the strongest oxidability, can be by
Absorption aoxidizes at OH-and H2O of semiconductor surface, generates the OH [20] with strong oxidizing property.With
Under be several oxidant current potential order F2>·OH>O3>H2O2>HO2·>MnO4->HCLO>Cl2>Cr2O72->·ClO2,
Can be seen that OH has the highest oxidizing potential, be a kind of Strong oxdiative group, can aoxidize most organic
Pollutant and part inorganic pollution.Meanwhile, organic at semiconductor surface of absorption also can be captured in hole itself
Electronics in pollutant, makes the most light absorbing material originally be decomposed by direct oxidation.In light-catalyzed reaction system
In, both mode of oxidizing may individually work and be likely to act on simultaneously, for different two kinds of oxygen of material
The degree that change mode participates in effect is different regarding concrete condition.On the other hand, electron acceptor can directly accept
Photoproduction semiconductor surface produce high activity electronics and be reduced.
Light-catalyzed reaction process:
·OH+dye
TiO2(h+)+dye→·dye
Mx++xTiO2(e-)→M0
Mx++yTiO2(e-)→M(x-y)+(x>y)
Knowable to above nano titanium dioxide photocatalysis course of reaction, in light-catalyzed reaction system, surface is inhaled
The existence of attached molecule oxygen can directly affect the transfer of light induced electron, in impact reaction high mars free radical and reaction
Mesosome OH, O2-、HO2·、H2O2Generation, photocatalysis oxidation reaction speed and quantum yield.To partly leading
It is passed through oxygen in body photocatalysis system and can accelerate organic degradation rate, because when solution has O3In the presence of,
Light induced electron meeting and O3Effect generates O more2-, and then generate more HO with H+ effect2, ultimately generate more
Many OH oxidative degradation Organic substances.In the algae water of dual oxidation, algae almost 100% is inactivated.
Bad five class high concentration blue algae waters are in " air supporting-precipitation integral " processing procedure, simultaneously through " ozone
Micro-nano cavitation aoxidizes " and two-stage " the super oxidation of " oxidation of UV+ nano titanium dioxide photocatalysis " superposition
Technology " process after all indexs reach more than III class water quality, part index number reaches II class water quality index, pass through
After filter, water quality index reaches between I, II class water quality.The Dian Chi in the Yunnan for being perplexed by eutrophication at present,
River, Lake Xingyun, water quality as inland lake eutrophication waters such as Taihu Lake, Wuxi of drinking water source, Chaohu, Anhui Province, Chinas
Purification, pollutant removal, new water supplement and provide truly feasible solution.
Beneficial effects of the present invention:
It is general that the processing method of the present invention not only meets algae in ocean that eutrophication causes, rivers and lakes water
Indiscriminate water environment treatment, is also applied for the high concentrations such as the dangerous waste sewage after garbage sorting, percolate
The pretreatment and advanced treatment of organic polluting water etc., also meets chemical industry, pharmacy, food and drink, biological section
Learn the industrial organic waste water such as research institution, hospital and microorganism pollution control, for the most nationwide universal
The vast rural area of existence, organic pollution, microorganism, antibiotic and the medicine at city " safty of drinking water " water source
Thing, the preposition process of hormone severe overweight have distinguished effect, set for sewage disposals such as vast rural towns
Execute the life in the most complete area, cultivation externally discharged waste water enters pretreatment before general oxidation pond, lowers environmental pollution and bears
Lotus, protection environment has more long-range and important meaning.
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described
Embodiment be only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
A kind of algae or the processing method of high concentrated organic wastewater, comprise the following steps:
(1) one-level AOP: air supporting-precipitation integral pond organic wastewater suction improved, uses cavitation technique
Carrying out micro-nano Air Exposure, source of the gas uses air source ozone or pure oxygen source of the gas ozone, forms water, gas, has
The three-phase mixed system of machine thing；
(2) in the air supporting-precipitation integral pond of improvement, flocculant, flocculation aid are added；
(3) two grades of AOP: open Burdick lamp and be irradiated, under the photocatalysis of titanium deoxid film,
Organic substance in degraded and Decomposition Wastewater；
(4) three-phase thing is separated: precipitation, and the Organic substance in supernatant flows into sludge sump by Slag Scraping Device, then
Flow into sludge outlet by mud down pipe together with the mud bottom the air supporting-precipitation integral pond of improvement to enter
Row is collected, and clear water is flowed out by clear water output.
Following embodiment cavitation technique uses equipment to include, and recoil swashs decline nano bubble release and mixing wastewater with air
Equalizer.
Embodiment 1
The present embodiment provides the processing method of a kind of high concentrated organic wastewater, comprises the following steps:
(1) one-level AOP: the air supporting that high concentrated organic wastewater (sanitary sewage) suction is improved-precipitation one
Changing pond, use cavitation technique to carry out micro-nano Air Exposure, source of the gas uses pure oxygen source of the gas ozone, formed water,
Gas, organic three-phase mixed system；
(2) in the air supporting-precipitation integral pond of improvement, flocculant and flocculation aid are added；The dosage of flocculant
For 0.05ml/L, the dosage of flocculation aid is 0.04ml/L；
(3) two grades of AOP: opening Burdick lamp and be irradiated, the intensity of Burdick lamp is 50mJ/cm2,
Under the photocatalysis of titanium deoxid film, irradiation time is 0.5 hour, degraded and Decomposition Wastewater in organic
Thing；Titanium dichloride load, in the pool wall surrounding and inclined tube in the air supporting-precipitation integral pond of described improvement, is formed
One layer of nanometer anatase titania thin film.
(4) three-phase thing is separated: precipitate 1 hour, floats on the organic floating slag above supernatant by scraping
Slag machine flows into sludge sump, then by mud down pipe together with the mud bottom the air supporting-precipitation integral pond of improvement
Flowing into sludge outlet together to be collected, clear water is flowed out by clear water output.
The detection data of each step water sample are as follows:
Embodiment 2
The present embodiment provides the processing method of a kind of Dian Chi algae pulp-water, comprises the following steps:
(1) one-level AOP: air supporting-precipitation integral pond Dian Chi algae pulp-water suction improved, uses cavitation skill
Art carries out micro-nano Air Exposure, and source of the gas uses air source ozone, formation water, gas, organic three-phase to mix
Fit system；
(2) in the air supporting-precipitation integral pond of improvement, flocculant and flocculation aid are added；The dosage of flocculant
For 0.1ml/L, the dosage of flocculation aid is 0.04ml/L；
(3) two grades of AOP: opening Burdick lamp and be irradiated, the intensity of Burdick lamp is 45mJ/cm2,
Under the photocatalysis of titanium deoxid film, irradiation time is 0.5 hour, degraded and Decomposition Wastewater in organic
Thing；Titanium dichloride load, in the pool wall surrounding and inclined tube in the air supporting-precipitation integral pond of described improvement, is formed
One layer of nanometer anatase titania thin film.
(4) three-phase thing is separated: precipitating 0.5 hour, the Organic substance in supernatant flows into mud by Slag Scraping Device
Groove, then flow into mud by mud down pipe together with the mud bottom the air supporting-precipitation integral pond of improvement
Outlet is collected, and clear water is flowed out by clear water output.
Embodiment 3
The present embodiment provides the processing method of a kind of high concentrated organic wastewater, comprises the following steps:
(1) one-level AOP: air supporting-precipitation one that high concentrated organic wastewater (percolate) suction is improved
Body pond, uses cavitation technique to carry out micro-nano Air Exposure, and source of the gas uses air source ozone, formed water,
Gas, organic three-phase mixed system；
(2) in the air supporting-precipitation integral pond of improvement, flocculant and flocculation aid are added；The dosage of flocculant
For 0.3ml/L, the dosage of flocculation aid is 0.6ml/L；
(3) two grades of AOP: opening Burdick lamp and be irradiated, the intensity of Burdick lamp is 50mJ/cm2,
Under the photocatalysis of titanium deoxid film, irradiation time is 5 hours, the Organic substance in degraded and Decomposition Wastewater；
Titanium dichloride load, in the pool wall surrounding and inclined tube in the air supporting-precipitation integral pond of described improvement, forms one layer
Anatase titanium dioxide film.
(4) three-phase thing is separated: precipitating 9 hours, the Organic substance in supernatant flows into mud by Slag Scraping Device
Groove, then flow into mud by mud down pipe together with the mud bottom the air supporting-precipitation integral pond of improvement
Outlet is collected, and clear water is flowed out by clear water output.
Embodiment 4
The present embodiment provides the processing method of a kind of high concentrated organic wastewater, comprises the following steps:
(1) one-level AOP: the air supporting that high concentrated organic wastewater (dye intermediate wastewater) suction is improved-
Precipitation integral pond, uses cavitation technique to carry out micro-nano Air Exposure, and source of the gas uses pure oxygen source of the gas ozone,
Form water, gas, organic three-phase mixed system；
(2) in the air supporting-precipitation integral pond of improvement, flocculant and flocculation aid are added；The dosage of flocculant
For 0.3ml/L, the dosage of flocculation aid is 0.6ml/L；
(3) two grades of AOP: opening Burdick lamp and be irradiated, the intensity of Burdick lamp is 50mJ/cm2,
Under the photocatalysis of titanium deoxid film, irradiation time is 7 hours, the Organic substance in degraded and Decomposition Wastewater；
Titanium dichloride load, in the pool wall surrounding and inclined tube in the air supporting-precipitation integral pond of described improvement, forms one layer
Anatase titanium dioxide film.
(4) three-phase thing is separated: precipitating 7 hours, the Organic substance in supernatant flows into mud by Slag Scraping Device
Groove, then flow into mud by mud down pipe together with the mud bottom the air supporting-precipitation integral pond of improvement
Outlet is collected, and clear water is flowed out by clear water output.
In processing percolate and chemical dyestuff Intermediate Wastewater case, owing to needs increase the response time,
Native system can by multiple in parallel and serial in the way of, such as: A, percolate contain due to COD, BOD
Measuring higher, the water yield is little, therefore uses the mode of multiple Cascade System, anti-from 1-n (n≤10) respectively
Ying Chiwei order is gradually decomposed, is gradually removed pollutant, it may be assumed that No. 1 pond water outlet enters No. 2 ponds, and No. 2 ponds go out
Water enters No. 3 ponds, uses the reactive mode of " ozone micro-nano cavitation advantage "；B, dyestuff intermediate due to
Sensitive to photolysis, the water yield is big, therefore uses " the UV+TiO2 photochemical catalytic oxidation advantage " of lengthening cell body
Processing mode, and use the mode of multiple cell body parallel processing, use 1-n (n≤10) individual reaction tank, and
Row order water inlet, No. 1 into, No. 2 ..., No. 1 pond water outlet low-lift pump draws back No. 1 pond water inlet
Again initially entering from source, iterative cycles processes until colourity and organic chemical intermediates are degraded, ability up to standard
Subsequent processing can be entered and continue reaction.
The foregoing is only the preferable case study on implementation of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within the protection domain of invention.
Claims (6)
1. an algae or the processing method of high concentrated organic wastewater, it is characterised in that comprise the following steps:
(1) one-level AOP: air supporting-precipitation integral pond organic wastewater suction improved, uses cavitation technique
Carrying out micro-nano Air Exposure, source of the gas uses air source ozone or pure oxygen source of the gas ozone, forms water, gas, has
The three-phase mixed system of machine thing；
(2) in the air supporting-precipitation integral pond of improvement, flocculant, flocculation aid are added；
(3) two grades of AOP: open Burdick lamp and be irradiated, under the photocatalysis of titanium deoxid film,
Organic substance in oxidation and Decomposition Wastewater；
(4) three-phase thing is separated: lightweight floating Organic substance and other scum silica frost flow into mud by water surface Slag Scraping Device
Groove, then by mud down pipe together with the heavy precipitating sludge bottom the air supporting-precipitation integral pond of improvement
Inflow sludge outlet is collected, and clear water is flowed out by clear water output.
A kind of algae the most according to claim 1 or the processing method of high concentrated organic wastewater, its feature
Being, the equipment that the cavitation technique in described step (1) uses includes that recoil swashs the nano bubble release that declines
With air water hybrid equalizer.
A kind of algae the most according to claim 1 or the processing method of high concentrated organic wastewater, its feature
Being, described step (3) flocculant dosage is: 0.05～0.3ml/L, and the dosage of described flocculation aid is:
0.04～0.6ml/L.
A kind of algae the most according to claim 1 or the processing method of high concentrated organic wastewater, its feature
Being, the intensity of described Burdick lamp is 45～55mJ/cm2, irradiation time is 0.5-7 hour.
A kind of algae the most according to claim 4 or the processing method of high concentrated organic wastewater, its feature
It is, the described titanium dichloride load pool wall surrounding in the air supporting-precipitation integral pond of described improvement and inclined tube
In, form one layer of anatase titanium dioxide nano thin-film.
A kind of algae the most according to claim 1 or the processing method of high concentrated organic wastewater, its feature
Being, in described step (5), the sedimentation time is 0.5～1.5 hour.
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| CN106045136A (en) * | 2016-08-11 | 2016-10-26 | 郭志强 | Modifying and air floating apparatus used for sewage treatment |
| CN106477662A (en) * | 2016-10-28 | 2017-03-08 | 刘牧 | A kind of method using the micro-nano air-flotation process water pollution of original position and its system |
| CN107555652A (en) * | 2017-09-07 | 2018-01-09 | 刘牧 | The micro-nano molecular sieve algae water of cofferdam type of original position collection blue-green alga bloom is same to control system |
| WO2018209874A1 (en) * | 2017-05-18 | 2018-11-22 | 山东大学 | Method for enhancing algae coagulation using nitrogen-doped titanium dioxide and degrading algae-containing sediment in visible light simultaneously |
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Application publication date: 20160720 |