CN106082560B - A kind of processing method of beneficiation wastewater - Google Patents

A kind of processing method of beneficiation wastewater Download PDF

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CN106082560B
CN106082560B CN201610671402.3A CN201610671402A CN106082560B CN 106082560 B CN106082560 B CN 106082560B CN 201610671402 A CN201610671402 A CN 201610671402A CN 106082560 B CN106082560 B CN 106082560B
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dross
reactor
tank
water
vortex
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CN106082560A (en
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涂瑞强
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Hubei Tonghui Bioengineering Co., Ltd.
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Hangzhou Green One Environmental Protection Technology 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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/58Treatment of water, waste water, or sewage by removing specified dissolved 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
    • 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
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • 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
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water

Abstract

The invention discloses a kind of processing method of beneficiation wastewater, waste water passes sequentially through sump, coarse rack, primary sedimentation basin, pH value conditioning tank, carbon dioxide vortex convection current dross separate reactor, aeration tank, biological oxidation filter tank, secondary sedimentation tank, water purifying tank are handled.The eddy flow wall attachment effect of this method creativeness being utilized in hydrodynamics, when eddying motion occurs for the liquid in container, if applying in the vortex center position reversely rotate power simultaneously, it is allowed to generate reverse vortex, eddy flow wall attachment effect can occur for the barium ions in liquid, gradually converge at the anti-narrow zone being vortexed between external positive vortex in inside, localized ion concentration is caused to increase, at this time, introducing carbon dioxide gas makes it dissolve forms carbanion in solution, barium ions can be in conjunction with the carbanion, generate the barium salt precipitating of indissoluble, and the narrow zone between two strands of vortexs floats, ultimately form barium salt dross, to enable the barium ions in solution to remove.

Description

A kind of processing method of beneficiation wastewater
Technical field
The present invention relates to a kind of processing method of beneficiation wastewater, belong to the field of waste water treatment in environmental protection.
Background technique
Mineral resources are the important material bases of human social development and the development of the national economy, and mining industry is that China's history is most long-drawn-out Long industry, while being the basic industry of the national economic development again, it is related to agricultural, light industry, chemical industry, metallurgy, machinery, builds Build, the energy, traffic, national defence and people's daily life multiple fields.As it can be seen that mining industry, which plays China's expanding economy, to be replaced The important function in generation.However, mine needs a large amount of industrial water in recovery process, while giving off a large amount of waste water, this The indices such as a little heavy metal ions in wastewater concentration, solid suspension concentration and COD, all considerably beyond country Discharge standard, this is just easy to cause tremendous influence to dressing plant's surrounding enviroment.Moreover, from the purification of domestic and international beneficiation wastewater From the point of view of disposal status, qualified discharge is handled beneficiation wastewater and is allowed to, not only processing technique difficulty is big, but also processing cost It is very high.Therefore, how beneficiation wastewater is effectively treated, is China's mining industry important topic urgently to be resolved.
Various organic and Inorganic floatation medicine when main harmful substance is heavy metal ion, ore floatation in beneficiation wastewater Agent, cyanide, cyanogen chromium complex etc. including severe toxicity.Also contain various undissolved coarse grain and fine particle impurity in waste water.Choosing Contain the sulfate, chloride or hydroxide of sodium, magnesium, calcium etc. in mine waste water toward contact.Acid in beneficiation wastewater mainly contains Sulfur mineral is mixed with water through air oxidation and is formed.
In all multi-pollutants of beneficiation wastewater, heavy metal ion pollutant be it is very important, as copper, lead, zinc, chromium, The harm of mercury and arsenic plasma and its compound, is generally well known.Meanwhile it may be neglected by people there are also a metal ion species Depending on, that is, barium ions.Although barium ions has harm very serious unlike above-mentioned several high toxicity heavy metal ion Property, but if improvement is not added and is allowed to be emitted into surface water body environment, barium ions can be followed into nature food chain quickly Ring, final still to be taken in and be absorbed by human body, less serious case cause nausea,vomiting,diarrhea, abdominal pain, body may occur when serious Paralysis, facial livid purple, coldness of extremities, muscular tremor, twitch, lingualis and throat paralysis, or even aphasis occurs.
Currently, China is mainly the following processing method for the beneficiation wastewater containing heavy metal ion:
(1) neutralization precipitation method:
Neutralization precipitation method is the method for heavy metal ion comparative maturity in current treatment of acidic wastewater.This method can be by waste water In valuable metal ions under different pH value conditions the form of a hydroxide be precipitated out, achieve the purpose that recycling.In Lime stone or lime are mainly used with agent, also have Some Enterprises using alkaline waste liquor or waste residue (flyash, gangue, carbide slag, Lime slag etc.) neutralize acid waste water.This method is invested lower, operation and maintenance with technically simple easy, primary construction and is facilitated Advantage, but the disadvantage is that treatment effect is not ideal enough, effluent index is unstable, is easily caused in treatment process using a large amount of neutralizers Secondary pollution.
(2) sulphide precipitation:
Sulfurization-precipitation method is to convert insoluble or indissoluble sulfide for the heavy metal ion in waste water using vulcanizing agent to sink It forms sediment, the method that surfactant makes sediment float then is added.Sulphide precipitation metal removal rate is high, the precipitating quantity of slag compared with Few, metal content is high in precipitation slag, convenient for the recycling in later period, the weight such as arsenic, mercury, lead of removal more difficult for neutralization precipitation method Metal ion, sulphide precipitation can remove.But vulcanizing agent price is more expensive, so that the processing cost of this method is non- Chang Gao is not suitable for a wide range of promote.
(3) absorption method:
The method for removing dirty pollutant in water with solid absorbent, the referred to as absorption method of wastewater treatment.According to adsorbent Type difference can be divided into material absorption method and biosorption process.Material absorption mainly utilizes the weight in active carbon removal waste water Metal ion, and biological adsorption is then to utilize heavy metal ion toxic in microorganism removal waste water.Absorption method is because of its processed material Expect that at low cost, removal effect is good and is constantly subjected to the favor of people, but simultaneously, there is also long processing period, facilities to account for for absorption method The disadvantages of ground area is big, primary construction high investment.
(4) membrane separation technique:
All separation processes of membrane separation technique all be using in certain environment mixture each component property difference into Row separation.The principle of UF membrane is: penetrating film as separating medium using selectivity, is subject to certain thrust, stock blend selection in two sides Property penetrate film, thereby achieving the purpose of separation and purification.Membrane separation technique has many advantages, such as low consumption, efficient, easy to operate, in weight Metallic wastewater process field gradually draws attention.But since membrane module is expensive, fouling membrane and flux decline in use process, The application study of membrane separation technique is concentrated mainly on experiment mechanism at present at present.
Currently, the generally existing disadvantages mentioned above of the method for barium ions in existing Beneficiation Wastewater.Therefore, it is necessary to get rid of Existing processing technique thinking, hews out the new way of processing baric beneficiation wastewater, and then develops a kind of ore dressing of new type The processing technique of barium ions in waste water.
Summary of the invention
To solve the deficiencies in the prior art, the present invention provides a kind of processing methods of beneficiation wastewater, contain barium The beneficiation wastewater of ion enters sump, carries out centralized collection herein and preliminarily stabilised is adjusted, the water outlet of sump enters thick lattice Grid remove the major diameter solid matter in waste water herein, and the water outlet of coarse rack enters primary sedimentation basin, and further removal is useless herein Insoluble matter in water, the water outlet of primary sedimentation basin enter pH value conditioning tank, and the pH value range of pH value conditioning tank water outlet is about 6.0 ~ 7.0, it is required with meeting the water pH value that enters of carbon dioxide vortex convection current dross separate reactor, the water outlet of pH value conditioning tank enters Carbon dioxide vortex convection current dross separate reactor, removes the barium ions in waste water, and the separation of carbon dioxide vortex convection current dross is anti- It answers the water outlet of device to enter aeration tank, COD remaining in waste water is carried out at preliminary oxidation decomposition by aerobic aeration process herein Reason, the water outlet of aeration tank enter biological oxidation filter tank, and the water outlet in biological oxidation filter tank enters secondary sedimentation tank, secondary sedimentation tank Water outlet enters water purifying tank, and the outlet of water purifying tank 9 will be by this system treated purification water outlet outlet by waste line.
Wherein, carbon dioxide vortex convection current dross separate reactor enclosure material is hard glass steel, on the left of reactor under Portion is equipped with inlet valve, and right upper portion is equipped with water discharging valve, and 5 positive stirrer paddles, reaction has been mounted side by side in reactor bottom Device center is equipped with 1 hollow type carbon dioxide aeration reverse agitating function screw rod, and hollow type carbon dioxide is aerated reverse agitating function screw rod Hollow space carbon dioxide storage tank is connected to by gas-guide tube, hollow type carbon dioxide is aerated on reverse agitating function screw rod shaft uniformly Several air guide micropores are offered, so that the gas inside screw rod hollow space is entered in waste water in the form of microvesicle, also, hollow It is connected to 1 driving motor at the top of formula carbon dioxide aeration reverse agitating function screw rod, hollow type carbon dioxide is aerated reverse agitating function 1 set of unidirectional strainer of pore is surrounded on the outside of screw rod, reactor head is also equipped with 1 set of dross and attracts separator, lower end installation There are 4 dross suction pipes, the nozzle of dross suction pipe protrudes into reactor liquid level hereinafter, dross, which attracts, is equipped with waste residue on the right side of separator Arrange mouth;The beneficiation wastewater containing barium ions of (pH value is 6.0 ~ 7.0 after processing) is anti-by being located at after pH value adjusting processing The inlet valve of device left lower is answered to enter inside reactor, at this point, the positive stirrer paddle of 5 for being located at reactor bottom starts It rotates in the forward direction, waste water is made to generate positive vortex in inside reactor, meanwhile, the hollow type carbon dioxide positioned at reactor center Aeration reverse agitating function screw rod starts to reversely rotate under the driving of driving motor, to apply in the center rotated in the forward direction One reverse rotation power, is allowed to generate reverse vortex, eddy flow wall attachment effect can occur for the barium ions in waste water, gradually converge at It is internal anti-be vortexed and it is external it is positive be vortexed between narrow zone, cause localized ion concentration to increase, at this point, carbon dioxide storage tank to Hollow type carbon dioxide is aerated the hollow space transport of carbon dioxide gas in reverse agitating function screw rod, during carbon dioxide gas passes through Several air guide micropores on empty formula carbon dioxide aeration reverse agitating function screw rod shaft, are dissolved in waste water in the form of gas microbubbles And carbanion is formed, barium ions in conjunction with the carbanion, can generate the barium salt precipitating of indissoluble, since pore is unidirectionally filtered The presence of net, so that barium salt precipitating can not be diffused into the region except strainer, barium salt precipitating can only be along between two strands of vortexs Narrow zone floats, and barium salt dross is ultimately formed, and be drawn into dross through dross suction pipe and attract separator, by separating The Barium Residue arrived attracts waste residue row's mouth on the right side of separator to be discharged by being located at dross, is recycled after recycling, meanwhile, warp Waste water after crossing purified treatment, reactor is discharged in the water discharging valve by being located at reactor right upper portion, and enters next processing Process;Meanwhile the barium salt dross can be after attracting separation, recycling and reusing;Wherein, the effect of pH value conditioning tank is will to pass through one The pH value of waste water of secondary precipitating is adjusted to 6.0 ~ 7.0, enters water pH value with meet carbon dioxide vortex convection current dross separate reactor It is required that;Wherein, the effect of aeration tank is to be carried out at preliminary oxidation decomposition by aerobic aeration process to COD remaining in waste water Reason;Wherein, the effect in biological oxidation filter tank is that COD remaining to waste water carries out last deep purifying processing.
Wherein, the dischargeable capacity of carbon dioxide vortex convection current dross separate reactor is 245m3, positive stirrer paddle Operating voltage is 380V, and revolving speed is 270 turns/min.
Wherein, the operating voltage of the driving motor of carbon dioxide vortex convection current dross separate reactor is 380V, specified function Rate is 4.2kW, and revolving speed is 360 turns/min.
Wherein, the unidirectional strainer of pore of carbon dioxide vortex convection current dross separate reactor uses 304 stainless steel materials, resists Tensile strength is 560MPa, aperture 0.8mm.
By this system treated waste water, the removal efficiency of barium ions is up to 99.3%.
The present invention has the advantages that
(1) present invention gets rid of the processing technique thinking of barium ions in existing beneficiation wastewater, and creative is utilized stream Eddy flow wall attachment effect in mechanics makes baric waste water that eddying motion occur in a reservoir, and applies in the vortex center position Power is reversely rotated, is allowed to generate reverse vortex, eddy flow wall attachment effect can occur for the barium ions in waste water, gradually converge inside The anti-narrow zone being vortexed between external positive vortex, causes localized ion concentration to increase, at this point, introducing carbon dioxide gas makes It, which is dissolved in solution, forms carbanion, and barium ions in conjunction with the carbanion, can generate the barium salt precipitating of indissoluble, And the narrow zone between two strands of vortexs floats, and ultimately forms barium salt dross, to reach the mesh of barium ions in removal waste water 's.
(2) during purified treatment baric waste water of the present invention caused by barium salt dross can through attraction lock out operation come into Row extracts, and finally for recycling, therefore not will cause secondary pollution and can create certain economic benefit.
(3) present invention employs pure physical effects as purified treatment means, does not use any chemical agent, thus Eliminate the risk for introducing and endangering bigger chemical pollutant.
(4) the technology of the present invention route is advanced, can reach ideal clean-up effect, and operation expense is lower, is conducive to It is a wide range of to promote and apply.
Detailed description of the invention
Fig. 1 is equipment schematic diagram of the invention.
In figure: 1- sump, 2- coarse rack, 3- primary sedimentation basin, 4-pH value conditioning tank, 5- carbon dioxide vortex convection current are floating Slag separate reactor, the aeration tank 6-, 7- biological oxidation filter tank, 8- secondary sedimentation tank, 9- water purifying tank
Fig. 2 is the schematic diagram of carbon dioxide vortex convection current dross separate reactor.
51- inlet valve, 52- forward direction stirrer paddle, 53- hollow type carbon dioxide aeration hollow type carbon dioxide aeration are anti- It is inhaled to agitating screw, the unidirectional strainer of 54- pore, 55- dross suction pipe, 56- driving motor, 57- carbon dioxide storage tank, 58- dross Draw separator, 59- waste residue row mouth, 510- water discharging valve.
Specific embodiment
As shown in Figure 1, removing the processing method of barium in beneficiation wastewater, the beneficiation wastewater containing barium ions passes through waste line Into sump 1, centralized collection is carried out herein and preliminarily stabilised is adjusted, the outlet of sump 1 connects thick lattice by waste line Grid 2 remove the major diameter solid matter in waste water herein, and the outlet of coarse rack 2 connects primary sedimentation basin 3 by waste line, Further the insoluble matter in removal waste water, the outlet of primary sedimentation basin 3 connect pH value conditioning tank 4 by waste line herein, Waste water carries out the accurate adjusting of pH value herein, and the pH value range that pH value conditioning tank 4 is discharged is 6.0 ~ 7.0, to meet carbon dioxide Vortex convection current dross separate reactor 5 enters the requirement of water pH value, and the outlet of pH value conditioning tank 4 connects titanium dioxide by waste line The outlet of carbon vortex convection current dross separate reactor 5, carbon dioxide vortex convection current dross separate reactor 5 is connected by waste line Aeration tank 6 is connect, preliminary oxidation resolution process is carried out to COD remaining in waste water by aerobic aeration process herein, aeration tank 6 Outlet connects biological oxidation filter tank 7 by waste line, and at this, COD remaining to waste water carries out last deep purifying processing, The outlet in biological oxidation filter tank 7 connects secondary sedimentation tank 8 by waste line, herein that the remaining insoluble matter in waste water is whole It removes, the outlet of secondary sedimentation tank 8 connects water purifying tank 9 by waste line, and the outlet of water purifying tank 9 will be passed through by waste line This system treated purification water outlet outlet;Wherein, 5 enclosure material of carbon dioxide vortex convection current dross separate reactor is hard Glass reinforced plastic, reactor left lower are equipped with inlet valve 51, and right upper portion is equipped with water discharging valve 510, and reactor bottom is pacified side by side Equipped with 5 positive stirrer paddles 52, reactor center is equipped with 1 hollow type carbon dioxide aeration reverse agitating function screw rod 53, in The hollow space of empty formula carbon dioxide aeration reverse agitating function screw rod 53 is connected to carbon dioxide storage tank 57, hollow type two by gas-guide tube Several air guide micropores are uniformly provided on carbonoxide aeration 53 shaft of reverse agitating function screw rod, make the gas inside screw rod hollow space It can be entered in waste water in the form of microvesicle, also, the top of hollow type carbon dioxide aeration reverse agitating function screw rod 53 is connected to 1 Driving motor 56, hollow type carbon dioxide, which is aerated on the outside of reverse agitating function screw rod 53, surrounds the unidirectional strainer 54 of 1 set of pore, reactor top Portion is also equipped with 1 set of dross and attracts separator 58, and lower end is equipped with 4 dross suction pipes 55, and the nozzle of dross suction pipe 55 is equal Reactor liquid level is protruded into hereinafter, dross, which attracts, is equipped with waste residue row's mouth 59 on the right side of separator 58;(the place after pH value adjusting processing After reason pH value be 6.0 ~ 7.0) the beneficiation wastewater containing barium ions by be located at reactor left lower inlet valve 51 into Enter inside reactor, at this point, the positive stirrer paddle 52 of 5 for being located at reactor bottom starts to rotate in the forward direction, makes waste water anti- It answers and generates positive vortex inside device, meanwhile, the hollow type carbon dioxide aeration reverse agitating function screw rod 53 positioned at reactor center is opened Beginning reversely rotates under the driving of driving motor 56, so that it is dynamic to apply a reverse rotation in the center rotated in the forward direction Power is allowed to generate reverse vortex, and eddy flow wall attachment effect can occur for the barium ions in waste water, gradually converge at it is internal anti-be vortexed with it is outer Portion be just vortexed between narrow zone, cause localized ion concentration to increase, at this point, carbon dioxide storage tank 57 is to hollow type titanium dioxide Carbon is aerated the hollow space transport of carbon dioxide gas in reverse agitating function screw rod 53, and carbon dioxide gas passes through hollow type titanium dioxide Carbon is aerated several air guide micropores on 53 shaft of reverse agitating function screw rod, is dissolved in waste water in the form of gas microbubbles and forms carbon Acid ion, barium ions in conjunction with the carbanion, can generate the barium salt precipitating of indissoluble, due to depositing for the unidirectional strainer 54 of pore So that barium salt precipitating can not be diffused into region except strainer, barium salt precipitating can only along two strands be vortexed between stenosis area Domain is floated, and ultimately forms barium salt dross, and inhale 55 through dross suction pipe and introduce and attract separator 58 into dross, process is isolated The Barium Residue attract waste residue row's mouth 59 on the right side of separator 58 to be discharged by being located at dross, recycled after recycling, meanwhile, Waste water after purified treatment, reactor is discharged in the water discharging valve 510 by being located at reactor right upper portion, and enters next Treatment process;Meanwhile the barium salt dross can be after attracting separation, recycling and reusing;Wherein, the effect of pH value conditioning tank 4 be by 6.0 ~ 7.0 are adjusted to by the pH value of waste water of primary sedimentation, to meet entering for carbon dioxide vortex convection current dross separate reactor 5 The requirement of water pH value;Wherein, the effect of aeration tank 6 is to carry out preliminary oxidation to COD remaining in waste water by aerobic aeration process Resolution process;Wherein, the effect in biological oxidation filter tank 7 is that COD remaining to waste water carries out last deep purifying processing.Its In, the dischargeable capacity of carbon dioxide vortex convection current dross separate reactor 5 is 245m3, the work electricity of positive stirrer paddle 52 Pressure is 380V, and revolving speed is 270 turns/min;Wherein, carbon dioxide vortex convection current dross separate reactor 5, driving motor 56 Operating voltage is 380V, and rated power 4.2kW, revolving speed is 360 turns/min;Wherein, carbon dioxide vortex convection current dross separates Reactor 5, the unidirectional strainer 54 of pore use 304 stainless steel materials, tensile strength 560MPa, aperture 0.8mm.
By this system treated waste water, the removal efficiency of barium ions is up to 99.3%.

Claims (5)

1. a kind of processing method of beneficiation wastewater, which is characterized in that the beneficiation wastewater containing barium ions enters sump, herein into Row centralized collection and preliminarily stabilised are adjusted, and the water outlet of sump enters coarse rack, remove the major diameter solids in waste water herein Matter, the water outlet of coarse rack enter primary sedimentation basin, further remove the insoluble matter in waste water, the water outlet of primary sedimentation basin herein Into pH value conditioning tank, the pH value range of pH value conditioning tank water outlet is 6.0 ~ 7.0, to meet carbon dioxide vortex convection current dross point Enter the requirement of water pH value from reactor, the water outlet of pH value conditioning tank enters carbon dioxide vortex convection current dross separate reactor, goes Except the barium ions in waste water, the water outlet of carbon dioxide vortex convection current dross separate reactor enters aeration tank, herein by aerobic Aeration process carries out preliminary oxidation resolution process to COD remaining in waste water, and the water outlet of aeration tank enters biological oxidation filter tank, raw The water outlet in object oxidation filter tank enters secondary sedimentation tank, and the water outlet of secondary sedimentation tank enters water purifying tank, and the outlet of water purifying tank passes through useless Water pipeline will by this system treated purification water outlet outlet;
Carbon dioxide vortex convection current dross separate reactor left lower is equipped with inlet valve, and right upper portion is equipped with water discharging valve, 5 positive stirrer paddles have been mounted side by side in reactor bottom, and it is reversed that reactor center is equipped with 1 hollow type carbon dioxide aeration The hollow space of agitating screw, hollow type carbon dioxide aeration reverse agitating function screw rod is connected to carbon dioxide storage tank by gas-guide tube, Several air guide micropores are uniformly provided on hollow type carbon dioxide aeration reverse agitating function screw rod shaft, are made inside screw rod hollow space Gas can be entered in waste water in the form of microvesicle, hollow type carbon dioxide aeration reverse agitating function screw rod at the top of be connected to 1 Driving motor, hollow type carbon dioxide, which is aerated on the outside of reverse agitating function screw rod, surrounds 1 set of unidirectional strainer of pore, and reactor head is also pacified Attract separator equipped with 1 set of dross, lower end is equipped with 4 dross suction pipes, and the nozzle of dross suction pipe protrudes into reactor liquid Face is equipped with waste residue row's mouth hereinafter, dross attracts on the right side of separator.
2. processing method according to claim 1, which is characterized in that adjust that treated contains barium ions by pH value Beneficiation wastewater enters inside reactor by being located at the inlet valve of reactor left lower, at this point, being located at the 5 of reactor bottom Zhi Zhengxiang stirrer paddle starts to rotate in the forward direction, and so that waste water is generated positive vortex in inside reactor, while being located in reactor The hollow type carbon dioxide aeration reverse agitating function screw rod of centre starts to reversely rotate under the driving of driving motor, thus in forward direction The center of rotation applies a reverse rotation power, is allowed to generate reverse vortex, eddy flow can occur for the barium ions in waste water Wall attachment effect gradually converges at the anti-narrow zone being vortexed between external positive vortex in inside, localized ion concentration is caused to increase, At this point, hollow space transport of carbon dioxide gas of the carbon dioxide storage tank into hollow type carbon dioxide aeration reverse agitating function screw rod Body, carbon dioxide gas is aerated several air guide micropores on reverse agitating function screw rod shaft by hollow type carbon dioxide, with gas The form of microvesicle is dissolved in waste water and is formed carbanion, and barium ions can generate indissoluble in conjunction with the carbanion Barium salt precipitating, due to the presence of the unidirectional strainer of pore, so that barium salt precipitating can not be diffused into the region except strainer, barium salt precipitating It can only float along the narrow zone between two strands of vortexs, ultimately form barium salt dross, and be drawn into dross through dross suction pipe Attract separator, attract waste residue row's mouth on the right side of separator to be discharged by being located at dross by isolated the Barium Residue, It is recycled after recycling, the waste water after purified treatment, the water discharging valve by being located at reactor right upper portion is discharged anti- Device is answered, and enters next treatment process;The barium salt dross is after attracting separation, recycling and reusing.
3. processing method according to claim 1, which is characterized in that carbon dioxide vortex convection current dross separate reactor Dischargeable capacity is 245m3, the operating voltage of positive stirrer paddle is 380V, and revolving speed is 270 turns/min.
4. processing method according to claim 1, which is characterized in that carbon dioxide vortex convection current dross separate reactor, The operating voltage of its driving motor is 380V, and rated power 4.2kW, revolving speed is 360 turns/min.
5. processing method according to claim 1, which is characterized in that the aperture of the unidirectional strainer of pore is 0.8mm.
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