CN109320004A - A kind of useless water purification method of anthocyanidin production - Google Patents

A kind of useless water purification method of anthocyanidin production Download PDF

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Publication number
CN109320004A
CN109320004A CN201810390296.0A CN201810390296A CN109320004A CN 109320004 A CN109320004 A CN 109320004A CN 201810390296 A CN201810390296 A CN 201810390296A CN 109320004 A CN109320004 A CN 109320004A
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waste water
flocculant
treatment
obtains
aqueous solution
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刘丹
鞠大江
吴巍
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JIANFENG NATURAL PRODUCT R&D DEVELOPMENT Co Ltd TIANJIN
Tianjin Jianfeng Natural Product R&D Co Ltd
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JIANFENG NATURAL PRODUCT R&D DEVELOPMENT Co Ltd TIANJIN
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Priority to CN201810390296.0A priority Critical patent/CN109320004A/en
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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
    • C02F1/34Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • 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
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • 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
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • 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
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/005Combined electrochemical biological processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2806Anaerobic processes using solid supports for microorganisms

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  • 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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of methods of efficiently removal anthocyanidin production waste water color, and the method comprising the steps of: (1) pH value of anthocyanidin production waste water being adjusted to 8~9;(2) flocculant is added in the waste water obtained to step (1);(3) settlement treatment is carried out to the waste water that step (2) obtains;(4) waste water after settlement treatment is ultrasonically treated;(5) advanced oxidation processing is carried out to the waste water that step (4) obtains;(6) pH value for the waste water that step (5) obtains is adjusted to 11~12, and is warming up to 35 DEG C~37 DEG C, then carry out the filling adsorption under anaerobic condition and apply the circular treatment of electric field.Method of the invention while color, ensure that the indexs such as COD, BOD of waste water drop to discharge index in efficiently removal anthocyanidin production waste water;And combined complete set of equipments is used, the operating cost of system is reduced, is also later systems technology upgrading, updates and provide convenience.

Description

A kind of useless water purification method of anthocyanidin production
Technical field
The present invention relates to chemical technology fields, are related to a kind of useless water purification method of anthocyanidin production, and in particular to a kind of The efficiently method of removal anthocyanidin production waste water color.
Background technique
Anthocyanidin is a kind of water colo(u)r, is to constitute one of petal and the primary pigments of fruit color in nature, Its color can change with the change of locating solution ph.
Anthocyanidin production has carried out for many years, and the waste water generated in production process has deeper aubergine, it is difficult to locate Reason.Specifically, using simple filter type, it is ineffective;Handled using the mode of absorption, due to waste water yield compared with Greatly, it needs to frequently replace adsorbent material and needs to post-process adsorbent material;Using membrane material equipment, then operating cost compared with It is high.
Individually there is certain decolorizing effect using the color for generating waste water in flocculant process anthocyanidin production process.But It is that after the use of flocculant reaches a certain amount of, the growth of decolorizing effect starts to become unobvious;Meanwhile after post-processing of flocculating More waste water are generated, biggish burden can be brought to the operation of subsequent anaerobic tower and aerobic tank.
Currently, have a large amount of related patents in terms of sewage treatment, but the dirt after being extracted not yet specifically for anthocyanidin The related patents of water process.Wherein, Chinese patent CN205500885U is to purify sewage by ultrasonic wave, ozone treatment;China Patent CN206437986U is to purify sewage by ultrasonic wave, ozone, ultraviolet light coupling processing;Chinese patent CN104628195B It is by adjusting pH value, micro-electrolysis reaction, flocculant decolorization purification sewage;Chinese patent CN100368324C is to pass through wadding Solidifying agent, microorganism, catalytic oxidant, electrochemical treatments purify sewage.The present inventor has done relevant taste at work Examination, but as a result, it has been found that, the sewage color after being extracted due to anthocyanidin is deeper, and the above processing method is unable to reach national discharge Standard.
Therefore, it is necessary to develop a kind of useless water purification method of anthocyanidin production, it is useless especially to effectively remove anthocyanidin production The method of water color.
Summary of the invention
The purpose of the present invention is overcoming deficiency in the prior art, a kind of purification side of anthocyanidin production waste water is provided Method can efficiently remove the color of anthocyanidin production waste water, to reach national emission standard.
The present invention provides a kind of methods of removal anthocyanidin production waste water color, the described method comprises the following steps:
(1) pH value of anthocyanidin production waste water is adjusted to 8~9;
(2) flocculant is added in the waste water obtained to step (1), carries out decolorization;
(3) settlement treatment is carried out to the waste water that step (2) obtains;
(4) waste water obtained to step (3) is ultrasonically treated;
(5) advanced oxidation processing is carried out to the waste water that step (4) obtains;
(6) pH value for the waste water that step (5) obtains is adjusted to 11~12, and is warming up to 35 DEG C~37 DEG C, then carried out The circular treatment of filling adsorption and application electric field under anaerobic.
Preferably, the method for the invention the step of in (1), the COD (COD) of the anthocyanidin production waste water It is 5500~5600, biochemical oxygen demand (BOD) (BOD) is 3100~3150, pH=3~5.
Preferably, the method for the invention the step of in (1), the pH value is adjusted using sodium hydrate aqueous solution;It is more excellent Selection of land, by weight, the concentration of the sodium hydrate aqueous solution are 31%-32%.
Preferably, the method for the invention the step of in (2), the flocculant is organic anion flocculant or inorganic height Molecular flocculant;It is highly preferred that the organic anion flocculant is polyacrylamide (PAM).Preferably, in side of the invention In the step of method (2), the flocculant is added in the form of flocculant aqueous solution;It is highly preferred that the flocculant aqueous solution by Decolorization flocculation agent stoste is diluted through water, wherein the decolorization flocculation agent stoste and the volume ratio of decolorization flocculation agent aqueous solution are (2~5): 100.
In a specific embodiment, the flocculant stoste is commercially available, more specifically, the flocculant is for example Commercially available polyacrylamide emulsion, for more liquid white emulsion, itself solid content with higher, concentration exists 30% or so.
Preferably, the method for the invention the step of in (2), the volume ratio of the flocculant aqueous solution and waste water be (1~ 1.5)∶10000。
Preferably, the method for the invention the step of in (3), the settlement treatment carries out in flocculation/tube settler pond.
Preferably, the method for the invention the step of in (4), the sound intensity of the ultrasonic treatment is not less than 0.3W/m2, work Frequency is not less than 20KHz, and when being ultrasonically treated waste water liquid height not higher than 200mm.
Preferably, the ultrasonic oscillation head of the ultrasonator is arranged in a spiral form along pipeline;Ultrasonic oscillation The quantity of head can be determined according to the physicochemical property of waste water, it is preferable that the quantity of ultrasonic oscillation head is no less than three, Mei Gechao The spacing of sound wave shock head is 195mm-205mm.
In actual operation, it was found by the inventors of the present invention that the spacing of the ultrasonic oscillation head is too small, adjacent ultrasonic wave It can interact between the ultrasonic wave that head generates, spacing is excessive, and the ultrasonic wave of generation is uneven, in some regions, ultrasonic wave Intensity can be lower than desired numerical value.The present inventor is it has furthermore been found that in the prior art, ultrasonic oscillation head generallys use Horizontal layout the bottom of sink set-up mode, ultrasonic wave only act on toward the direction.The problem of this mode is brought be Occupation area of equipment is very big, meanwhile, the operating distance of ultrasonic wave is limited, and the height of water level in sink is very limited, and causes The flow of handled waste water is small in sink.And it was found by the inventors of the present invention that by ultrasonic oscillation head along pipeline with spiral Form arrangement, preferably sets 195mm-205mm for the spacing of ultrasonic oscillation head, has both efficiently avoided ultrasonic head phase It is issuable when to arrangement to interfere with each other, it in turn ensures being uniformly distributed for ultrasonic wave, improves treatment effeciency.
Preferably, the method for the invention the step of in (5), the advanced oxidation processing is selected from Ozonation, dioxygen One of water oxidation or photocatalytic oxidation are a variety of.In view of the convenience and production cost of technological operation, with ozone Oxidizing process is preferred.It is highly preferred that step (4) is obtained by cloth gas nozzle or venturi ejector in Ozonation Waste water is mixed with ozone.Wherein, it is preferred with venturi ejector.
Preferably, the method for the invention the step of in (5), the advanced oxidation processing carries out in advanced oxidation tower. By carrying out advanced oxidation processing in closed advanced oxidation tower, such as ozone Oxidation Treatment be may be implemented in the closed state Increase the reaction time of ozone when transport wastewater, while reducing the smell that ozone is dispersed into air.
Preferably, in Ozonation, a reactor can also be encouraged by electricity and is added using burst pulse in gas-liquid mixed The waste water that step (4) obtains is mixed with ozone in device.
It preferably, further include by advanced oxidation treated waste water deoxidation the method for the invention the step of in (5).
Preferably, the method for the invention the step of in (6), the pH value is adjusted using oxygen aqueous solution of sodium oxide;It is more excellent Selection of land, by weight, the concentration of the sodium hydrate aqueous solution are 31%-32%.
Preferably, the method for the invention the step of in (6), the filling adsorption under anaerobic and apply electric field Circular treatment carried out in the pipeline of the anaerobic tower inner and outer portion configuration biological reinforced reactor of electric field field energy equipped with filler;It is more excellent Selection of land, every 8.1~8.2 hours circulation primaries of waste water, or recycled using the water pump of 4KW power, it is hourly to follow Ring water is 30 tons -35 tons.
Preferably, the method for the invention the step of in (6), the filler is polyolefin stereo elastic filler and/or poly- Amide 3 D elastic filler.It is highly preferred that the filler is the polypropylene 3 D elastic filler of filled glass fiber.
In the method for the invention, the reinforcing field energy that the biological reinforced reactor of electric field field energy generates acts on waste water, can The chemical structure of organic matter and the cell wall of Microbial Communities in Activated Sludge are destroyed, it is crushed and becomes small organic molecule, to mention The stability of high Anaerobic Treatment.
Preferably, the method for the invention the step of in (6), the working frequency of the electric field is 80Hz, and every 100 tons useless The electric field power of water configuration is not less than 800W.
Preferably, method of the invention further include: the waste water for obtaining step (6) carries out Aerobic Process for Treatment, so that waste water reaches To the discharge standard of higher level.
The advantages of method of the invention includes:
1, the united application between flocculation, ultrasonic wave, ozone and electric field can remove the color of waste water step by step, reach Good decolorizing effect.
2, the dosage of flocculant is controlled in reasonable range.In the method for the invention, decolorization flocculation agent aqueous solution with The volume ratio of waste water is (1~1.5): 10000.And in the prior art, the volume ratio of decolorization flocculation agent aqueous solution and waste water is Usually (3~3.5): 10000.Therefore, method of the invention reduces the operating cost of system.
3, in Anaerobic Treatment part, by the effect of anaerobe in anaerobic tower, reach color in removal waste water and Reduce the effect of pollutant index.Meanwhile waste water is acted on using the biological reinforced reactor of electric field field energy, pass through the fortune of electric field With more efficiently the cell wall of the chemical structure of destruction macromolecular organic pollutant and Microbial Communities in Activated Sludge, makes to divide greatly Sub- organic matter is broken to become small organic molecule, further achievees the purpose that remove color.Meanwhile the cell liquid flowed out after broken wall Nutrition is provided for anaerobic bacteria, to improve the stability of anaerobic bacteria activity and anaerobic system.
Detailed description of the invention
Hereinafter, carrying out the embodiment that the present invention will be described in detail in conjunction with attached drawing, in which:
Fig. 1 is the process flow chart of an embodiment of method of the invention;
Fig. 2 is the process flow chart of another embodiment of method of the invention;
Fig. 3 is the main view that ultrasonic oscillation head is laid out on waste water transfer line;
Fig. 4 is the perspective view that ultrasonic oscillation head is laid out on waste water transfer line;
Fig. 5 is the left view being laid out on ultrasonic oscillation head and waste water transfer line;
Fig. 6 is the assembling figure that the biological reinforced reactor of electric field strength is installed in method of the invention.
Specific embodiment
Illustrate that anthocyanidin of the invention produces useless water purification method, description below below by specific embodiment Merely to those skilled in the art is made to more fully understand the present invention, but do not limit the invention in any way.
Embodiment 1
With reference to the process flow chart of Fig. 1, the method for the present embodiment includes the following steps:
(1) by produce anthocyanidin product after generate production waste water (index of waste water are as follows: COD 5500, BOD 3100, PH=3), successively it is passed through conditioning tank and soda acid pond.The sodium hydrate aqueous solution that concentration is 31wt% is added in soda acid pond, by pH Adjust most 9.Wastewater recycle is taken, waste water index becomes COD 5480, BOD 3080, pH=9, chromatic value (multiple) 716.
(2) waste water after adjusting pH is delivered to flocculation/tube settler pond.According to decolorization flocculation agent and production wastewater volume It is added high-efficient decolorizing flocculant polyacrylamide (PAM), mixes in waste water than the ratio for 1: 10000.Wastewater recycle is taken, is given up Water index becomes COD:5480, BOD:3080, pH=9, chromatic value (multiple) 603.
(3) the waste water automatic flowing after flocculation treatment, floccule start to settle in flocculation/tube settler pond bottom angled To bottom, upper part waste water outflow goes out to flow into flotation tank.Wastewater recycle is taken, waste water index becomes COD:4980, BOD:2435, pH =9, chromatic value (multiple) 500.
(4) it is acted on using the ultrasonic oscillation head for the ultrasonator being mounted on the waste water conveyance conduit of flotation tank rear end In waste water, (for structure referring to Fig. 3-5), the ultrasonic wave sound intensity is 0.35W/m2, working frequency 20KHz, ultrasonic oscillation head is along pipe Road is arranged in a spiral form;Quantity is six, and the spacing of each ultrasonic oscillation head is 195mm.Ultrasonic oscillation head is acted on Waste water liquid height be 160mm.Waste water after taking ultrasonic wave to act on is detected, and waste water index becomes COD:3100, BOD:1498, chromatic value (multiple) 400.
(5) waste water pumping is subjected to ozone mixing by venturi ejector.Mixed waste water enters advanced oxidation tower After carrying out sufficient decoloring reaction with ozone, into anoxic pond, to remove the oxygen being dissolved in waste water.By ozone treatment Afterwards, wastewater recycle is taken, waste water index becomes COD:830, BOD:290, chromatic value (multiple) 240.
(6) waste water in anoxic pond is pumped in closed sodium hydroxide blending tank, is 31wt% by waste water and concentration Sodium hydrate aqueous solution be sufficiently mixed, make waste water pH value promoted to 11~11.5 or so, be then heated to 35~36 DEG C of left sides Anaerobic tower processing is sent on the right side.
(7) make the waste water for entering anaerobic tower processing that the pipe of the biological reinforced reactor of electric field field energy is installed outside anaerobic tower It is flowed through in road (structure is referring to Fig. 6), the polypropylene 3 D elastic filler that glass fibre is filled in anaerobic tower is then refluxed for In anaerobic tower, flows through, be then refluxed for out of anaerobic tower external pipe that be equipped with the biological reinforced reactor of electric field field energy again In anaerobic tower, it is thusly-formed circulation.Anaerobic tower major parameter are as follows: 36~67 DEG C of water temperature, pH=7.5~8;Waste water in anaerobic tower Every 8.1~8.2 hours circulation primaries of total amount;The field operation frequency of the biological reinforced reactor of electric field field energy be 80Hz, every 100 tons The power of waste water configuration is 800W.After the completion of Anaerobic Treatment, the waste water index for being detected, being obtained is sampled from anaerobic tower water outlet Become COD:230, BOD:100, chromatic value (multiple) 56 reaches state three grade emissioning standard.
(8) waste water enters next stage Aerobic biological process.Aerobic Process for Treatment is completed in aerobic tank, with Roots blower drum Wind, the aerator of aerobic tank lower end is transported to air piping, and uninterrupted valve regulated is uniformly divided air by aerator Cloth to aerobic tank everywhere.Under excess oxygen, the biomembrane for being adsorbed in composite filling handles waste water, reaches further drop The purpose of low waste water indices.Composite filling is selected using plastic hoop as skeleton, and polyvinyl silk is loaded, and polyvinyl silk is fastened on plastic hoop On, composite filling is fixed on bracket by axial cord suspension.The index of anthocyanidin production waste water after Aerobic biological process Become COD:125, BOD:71, pH=7~8, chromatic value (multiple) 40 reaches the higher discharge standard of national regulation.
Comparative example 1
The method of this comparative example includes the following steps:
(1) the production waste water (index of waste water are as follows: COD 5500, BOD 3100, pH generated after anthocyanidin product will be produced =3) conditioning tank and soda acid pond, are successively passed through.The sodium hydrate aqueous solution that concentration is 31wt% is added in soda acid pond, by pH tune Section most 9.Wastewater recycle is taken, waste water index becomes COD 5480, BOD 3080, pH=9, chromatic value (multiple) 716.
(2) waste water after adjusting pH is delivered to flocculation/tube settler pond.By decolorization flocculation pharmacy jar, according to decoloration It is poly- that high-efficient decolorizing flocculant is added in the ratio that flocculant and production wastewater volume ratio are 1: 10000 in flocculation/tube settler pond Acrylamide (PAM), mixing.Wastewater recycle is taken, waste water index becomes COD:5480, BOD:3080, pH=9, and chromatic value is (again Number) 603.
(3) the waste water automatic flowing after flocculation treatment, floccule start to settle in flocculation/tube settler pond bottom angled To bottom, upper part waste water outflow goes out to flow into flotation tank.Wastewater recycle is taken, waste water index becomes COD:4980, BOD:2435, pH =9, chromatic value (multiple) 500.
(4) it is acted in flotation tank using the ultrasonic equipment component being mounted on the waste water conveyance conduit of flotation tank rear end Waste water, the ultrasonic wave sound intensity be 0.35W/m2, working frequency 20KHz, ultrasonic oscillation head is along pipeline cloth in a spiral form It sets;Quantity is six, and the spacing of each ultrasonic oscillation head is 195mm.The liquid for the waste water that ultrasonic oscillation head is acted on Height is 160mm.Waste water after taking ultrasonic wave to act on is detected, and obtaining waste water index becomes COD:3100, BOD:1498, Chromatic value (multiple) 400.
(5) waste water pumping is subjected to ozone mixing by venturi ejector.Mixed waste water enters advanced oxidation tower, After carrying out sufficient decoloring reaction with ozone, into anoxic unit, removal is dissolved in the oxygen of waste water.By ozone mixing After processing, wastewater recycle is taken, waste water index becomes COD:830, BOD:290, chromatic value (multiple) 240.
(6) waste water in anoxic pond is pumped in closed sodium hydroxide blending tank, waste water and concentration are 31wt%'s Sodium hydrate aqueous solution is quickly sufficiently mixed, and the pH value of waste water is promoted to 11~11.5 or so, is then heated to 35~36 DEG C Left and right, the anaerobic tower that feeding does not install the biological reinforced reactor of electric field field energy are handled.
(7) waste water for entering anaerobic tower processing is made to be not installed with the biological reinforced reactor of electric field field energy outside anaerobic tower It being flowed through in pipeline, the polypropylene 3 D elastic filler that glass fibre is filled in anaerobic tower is then refluxed in anaerobic tower, then It is secondary to be flowed through out of anaerobic tower external pipe that be not installed with the biological reinforced reactor of electric field energy, it is then refluxed in anaerobic tower, It is thusly-formed circulation.Anaerobic tower major parameter are as follows: 36~67 DEG C of water temperature, pH=7.5~8;Waste water total amount every 8.1 in anaerobic tower ~8.2 hours circulation primaries.After the completion of Anaerobic Treatment, samples and detected from anaerobic tower water outlet, obtained waste water index becomes For COD:440, BOD:160, chromatic value (multiple) 120 does not meet the discharge standard of national regulation.
Discharge index is not met by the waste water that step (7) obtains, then in the Anaerobic Treatment process of step (7), is increased The cycle-index of waste water.However, even if increase cycle-index and anaerobic tower inflow is dropped to original three/ In the case where one (water yield is also accordingly reduced), samples and detected from anaerobic tower water outlet, obtained waste water index becomes COD:400, BOD:150, chromatic value (multiple) 110, still do not meet the discharge standard of national regulation.
Embodiment 2
With reference to the process flow chart of Fig. 2, the method for the present embodiment includes the following steps:
(1) the production waste water (index of waste water are as follows: COD 5600, BOD 3150, pH generated after anthocyanidin product will be produced =5) conditioning tank and soda acid pond, are successively passed through.The sodium hydrate aqueous solution that concentration is 31wt% is added in soda acid pond, by pH tune Section most 9.Wastewater recycle is taken, waste water index becomes COD 5460, BOD 3120, pH=8, chromatic value (multiple) 716.
(2) waste water after adjusting pH is delivered to flocculation/tube settler pond.By decolorization flocculation pharmacy jar, according to decoloration The ratio that flocculant and production wastewater volume ratio are 1: 10000 middle addition high-efficient decolorizing flocculant in flocculation/tube settler pond Polyacrylamide (PAM), mixing.Wastewater recycle is taken, waste water index becomes COD:5460, BOD:3120, pH=8, and chromatic value is (again Number) 603.
(3) the waste water automatic flowing after flocculation treatment, floccule start to settle in flocculation/tube settler pond bottom angled To bottom, upper part waste water outflow goes out to flow into flotation tank.Wastewater recycle is taken, waste water index becomes COD:5010, BOD:2455, pH =8, chromatic value (multiple) 496.
(4) it is acted on using the ultrasonic oscillation head for the ultrasonator being mounted on the waste water conveyance conduit of flotation tank rear end In waste water, (for structure referring to Fig. 3-5), the ultrasonic wave sound intensity is 0.35W/m2, working frequency 20KHz, ultrasonic oscillation head is along pipe Road is arranged in a spiral form;Quantity is three, and the spacing of each ultrasonic oscillation head is 205mm.Ultrasonic oscillation head is acted on Waste water liquid height be 200mm.Waste water after taking ultrasonic wave to act on is detected, and waste water index becomes COD:3150, BOD:1508, chromatic value (multiple) 408.
(5) it by waste water pumping by gas-liquid mixed supply device, will be given up under the action of electricity encourages reactor using burst pulse Water is mixed with ozone.Mixed waste water enters advanced oxidation tower, after carrying out sufficient decoloring reaction with ozone, into anoxic Pond, to remove the oxygen being dissolved in waste water.After ozone treatment, wastewater recycle is taken, waste water index becomes COD:840, BOD:305, chromatic value (multiple) 255.
(6) waste water in anoxic pond is pumped in closed sodium hydroxide blending tank, is 32wt% by waste water and concentration Sodium hydrate aqueous solution be sufficiently mixed, make waste water pH value promoted to 11~11.5 or so, be then heated to 35~36 DEG C of left sides Anaerobic tower processing is sent on the right side.
(7) make the waste water for entering anaerobic tower processing in pipeline (the structure ginseng for being equipped with the biological reinforced reactor 1 of electric field field energy See Fig. 6) in flow through, in anaerobic tower glass fibre fill polypropylene 3 D elastic filler, be then refluxed in anaerobic tower, It flows through, is then refluxed in anaerobic tower out of pipeline that be equipped with the biological reinforced reactor of electric field field energy again, be thusly-formed interior Circulation.Anaerobic tower major parameter are as follows: 36~67 DEG C of water temperature, pH=7.5~8;Waste water total amount every 8.1~8.2 in anaerobic tower is small When circulation primary;The field operation frequency of the biological reinforced reactor of electric field field energy is 80Hz, and the power of every 100 tons of waste water configuration is 800W.After the completion of Anaerobic Treatment, samples and is detected from anaerobic tower water outlet, obtained waste water index becomes COD:235, BOD: 95, chromatic value (multiple) 55 reaches state three grade emissioning standard.
(8) waste water enters next stage Aerobic biological process.Aerobic Process for Treatment is completed in aerobic tank, with Roots blower drum Wind, the aerator of aerobic tank lower end is transported to air piping, and uninterrupted valve regulated is uniformly divided air by aerator Cloth to aerobic tank everywhere.Under excess oxygen, the biomembrane for being adsorbed in composite filling handles waste water, reaches further drop The purpose of low waste water indices.Composite filling is selected using plastic hoop as skeleton, and polyvinyl silk is loaded, and polyvinyl silk is fastened on plastic hoop On, composite filling is fixed on bracket by axial cord suspension.The index of anthocyanidin production waste water after Aerobic biological process For COD:120, BOD:75, pH=7~8, chromatic value (multiple) 42 meets the discharge standard of national regulation.

Claims (10)

1. a kind of method of removal anthocyanidin production waste water color, the described method comprises the following steps:
(1) pH value of anthocyanidin production waste water is adjusted to 8~9;
(2) flocculant is added in the waste water obtained to step (1), carries out decolorization;
(3) settlement treatment is carried out to the waste water that step (2) obtains;
(4) waste water obtained to step (3) is ultrasonically treated;
(5) advanced oxidation processing is carried out to the waste water that step (4) obtains;
(6) pH value for the waste water that step (5) obtains is adjusted to 11~12, and is warming up to 35 DEG C~37 DEG C, then carry out detesting The circular treatment of filling adsorption and application electric field under the conditions of oxygen;
Preferably, in step (1), the COD of the anthocyanidin production waste water is 5500~5600, biochemical oxygen demand (BOD) For 3100~3150, pH=3~5.
2. the method according to claim 1, wherein the flocculant is organic anion wadding in step (2) Solidifying agent or inorganic polymer flocculant;
Preferably, the organic anion flocculant is polyacrylamide;
It is highly preferred that the flocculant is added in the form of decolorization flocculation agent aqueous solution;
More preferably, the flocculant aqueous solution is diluted by decolorization flocculation agent stoste through water, wherein the flocculant stoste With the volume ratio (2~5) of the decolorization flocculation agent aqueous solution: 100;
It is further preferred that the volume ratio of the flocculant aqueous solution and waste water is (1~1.5): 10000.
3. the method according to claim 1, wherein the settlement treatment is in flocculation/inclined tube in step (3) It is carried out in settling tank.
4. the method according to claim 1, wherein the sound intensity of the ultrasonic treatment is not less than in step (4) 0.3W/m2More than, working frequency is not less than 20KHz, and when being ultrasonically treated waste water liquid height not higher than 200mm.
5. the method according to claim 1, wherein the advanced oxidation processing is selected from ozone in step (5) It is one or more in oxidation, hydrogen peroxide oxidation or photocatalytic oxidation;
It is highly preferred that in Ozonation, the waste water that is obtained step (4) by cloth gas nozzle or venturi ejector with it is smelly Oxygen mixing;
It is further preferred that the waste water that step (4) obtains is mixed with ozone by venturi ejector;
Preferably, in Ozonation, reactor is encouraged by electricity and uses burst pulse in gas-liquid mixed supply device by step (4) waste water obtained is mixed with ozone.
6. according to the method described in claim 5, it is characterized in that, in step (5), ozone oxidation in advanced oxidation tower into Row.
7. the method according to claim 1, wherein the method also includes taking off the waste water after advanced oxidation Oxygen.
8. the method according to claim 1, wherein the pH value is aoxidized using oxygen in step (1) and (6) Sodium water solution is adjusted;
Preferably, by weight, the concentration of the sodium hydrate aqueous solution is 31%-32%.
9. the method according to claim 1, wherein the filling adsorption in step (6), under the anaerobic condition The pipeline of the biological reinforced reactor of electric field field energy is configured in the inner and outer portion of anaerobic tower equipped with filler with electric field circular treatment is applied Interior progress;
Preferably, the filler is polyolefins and/or polyamide 3 D elastic filler;It is highly preferred that the filler is filling The polypropylene 3 D elastic filler of glass fibre.
Preferably, every 8.1~8.2 hours circulation primaries of the waste water, or recycled using the water pump of 4KW power, per hour Quantity of circulating water be 30 tons -35 tons;It is highly preferred that the working frequency of the electric field be 80Hz, and every 100 tons of waste water configuration electricity Field power is not less than 800W.
10. method according to any one of claim 1 to 9, which is characterized in that the method also includes following steps: The waste water that step (6) is obtained carries out Aerobic Process for Treatment.
CN201810390296.0A 2018-04-27 2018-04-27 A kind of useless water purification method of anthocyanidin production Pending CN109320004A (en)

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Application publication date: 20190212