CN106045229A - Processing method for industrial wastewater - Google Patents
Processing method for industrial wastewater Download PDFInfo
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- CN106045229A CN106045229A CN201610629767.XA CN201610629767A CN106045229A CN 106045229 A CN106045229 A CN 106045229A CN 201610629767 A CN201610629767 A CN 201610629767A CN 106045229 A CN106045229 A CN 106045229A
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- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 13
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 239000002351 wastewater Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000008569 process Effects 0.000 claims abstract description 37
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000004062 sedimentation Methods 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 150000003751 zinc Chemical class 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 71
- 229910052759 nickel Inorganic materials 0.000 claims description 36
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 35
- 239000011701 zinc Substances 0.000 claims description 35
- 229910052725 zinc Inorganic materials 0.000 claims description 35
- 238000009713 electroplating Methods 0.000 claims description 29
- 150000003839 salts Chemical class 0.000 claims description 25
- 238000011282 treatment Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
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- 150000001450 anions Chemical class 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011796 hollow space material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000026676 system process Effects 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 abstract description 4
- 229910017053 inorganic salt Inorganic materials 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 239000002699 waste material Substances 0.000 description 9
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- 238000001311 chemical methods and process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/48—Devices for applying magnetic or electric fields
- C02F2201/483—Devices for applying magnetic or electric fields using coils
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a processing method for industrial wastewater. Wastewater passes through a water-collecting well, a coarse grid, a first sedimentation basin, a pH value adjusting tank, a metal spherical micro-current attraction salinization reactor, an aeration basin, a biological oxidation filter tank, a secondary sedimentation basin and a clean water tank in sequence. Creativity of the method is that a special electromagnetism induction phenomenon is utilized. When metal balls are in perpendicular magnetic-induction-line-cutting motion in the magnetic field, a faraday effect is generated, and micro-current circulation is formed on surfaces of the metal balls. Zinc ions in water are attracted and gradually gather on the surfaces of the balls, and therefore the zinc ion concentration at a local part is increased. The zinc ions break away from a solution and are subjected to a salinization reaction on the surfaces of the metal balls. The zinc ions combine with negative ions in the solution to produce inorganic salt, which is attached to the surfaces of the metal balls, thereby achieving the purpose of removing zinc ions from wastewater. Meanwhile, the metal balls with the zinc salt attached can be regenerated through processes, such as grinding and cleaning, and can be reused.
Description
Technical field
The present invention relates to the processing method of a kind of industrial wastewater, belong to the field of waste water treatment in environmental conservation.
Background technology
Electroplating industry is the processing industry that China is important, quickly grows nearly ten years.But due to dividing of China's electroplating industry
Cloth and development lack overall, complete planning for a long time, cause that on the one hand factory's point is many, small scale, low degree of specialized division of labor,
Hard case of poor benefits, that on the other hand electroplating industry pollution situation is serious.
According to present stage statistical data, China there are about Electroplate Factory 15000, and average annual electroplating wastewater discharge capacity is up to 4,000,000,000 tons,
Account for 1/6th of total discharged volume of industrial waste water, but wherein there are about the electroplating wastewater of 50% and be not up to discharging standards.For a long time with
Coming, China's electroplating enterprise consumes the extensive management of resources as feature with a large amount of, and compared with abroad, China's electroplating industry exists bright
Significant difference is away from, it was reported that the foreign-plated 1m of state2Plating piece average consumption be only 0.08 ton, and the average consumption of China is 0.82
Ton, is more than external 10 times, annual China single pair of processing cost the most up to more than 400,000,000 yuan containing heavy metal-containing electroplating effluent.Plating
Waste water quality is complicated, relates to various heavy metal ion and cyanide, and some is also containing carcinogenic, teratogenesis, mutagenic extremely toxic substance,
Very harmful to the mankind.If these electroplating wastewaters not up to discharge standard is directly entered environment, inherently to ecological environment and people
Class produces extensive and serious harm.It addition, the heavy metal in recovery electroplating wastewater can utilize resource, great warp the most comprehensively
Ji is worth.Therefore the improvement of electroplating wastewater is the problem of the most important thing of industrial wastewater treatment.
In many harmful components of electroplating wastewater, zinc is very important one.Zinc is that health is indispensable
Element, it is widely present in human muscle and skeleton, but content is little, if excess will occur serious consequence.Containing zinc
The discharge of electroplating wastewater has serious harm to health and industrial or agricultural activity, has persistency, toxicity big, seriously polluted etc.
Harm, can not be biodegradable after once entering environment, and great majority participate in food chain circulation, and finally accumulate in vivo,
Destroy organism normal physiological metabolic activity, be detrimental to health.Along with mankind's heavy metal exploitation, smelt, processing etc. raw
The increase day by day that product is movable, the heavy metal wastewater thereby of generation the most in quantity or is all greatly increased in kind, causes tight
The environmental pollution of weight and the wasting of resources.Therefore the improvement of Zinc-containing electroplating waste water remains the great research class of world's field of Environment Protection
Topic.
At present, for Zinc-containing electroplating waste water, mainly there is following several processing method in China:
(1) chemical method:
It is nontoxic thing that chemical method is dependent on redox reaction or neutralization-precipitation reaction by poisonous and hazardous substance decomposition
Matter, or directly heavy metal is removed from waste water through precipitation or air supporting.It specifically include that the sedimentation method, oxidizing process, reducing process,
Neutralisation and air supporting method etc..The advantage of chemical method is: small investment, processing means are simple, processing cost is relatively low, installation and maintenance and
Processing ease；But that its shortcoming is treatment effeciency is low, effluent quality is poor, process depth as shallow, can not recycle heavy metal and product
Primary sludge amount is big.
(2) bioanalysis:
The research utilizing microbial treatments electroplating wastewater comes from the eighties in 20th century.The mechanism of Biochemical method is alternate symbiosis
Relation, have three levels such as chemistry, physics and heredity cooperates mechanism.Some microbial metabolic products can make waste water
In heavy metal ion change valence state, microorganism species itself is also the strongest simultaneously bioflocculation, electrostatic adsorption, it is possible to
Adsorbing metal ions, makes heavy metal enter bacterium mud cake after solid-liquid separation, so that discharged wastewater met the national standard or reuse.It is main
Including: bio-flocculation process, biosorption process, biochemical process etc..The advantage of bioanalysis is: selectivity is strong, adsorption capacity greatly, no
Using chemical agent, generation sludge quantity few, the Heavy Metals in Sludge response rate is high；But its shortcoming be in function bacterium and waste water metal from
The highest and cultivation strain the culture medium consumption of the reaction efficiency of son is relatively big, cause processing cost the most high.
(3) physico-chemical process:
Physico-chemical process is to utilize ion exchange or the method such as membrance separation or adsorbent to remove the impurity contained by electroplating wastewater, and it is in industry
On be widely used, generally and other method with the use of.It specifically includes that ion exchange, membrane separation process, absorption method, evaporation
Concentration method etc..The advantage of physico-chemical process is: convenient management, easily be automated, separation efficiency is high, advanced treating is effective, go out
Water can be with reuse etc.；But physico-chemical process the most all also exist complex process, energy consumption is big, cost is high, floor space is big, operating
Costly, there are the drawbacks such as secondary pollution.
(4) electrochemical process:
Electrochemical process processes wastewater application and originates in the forties in 20th century, and along with the development of power industry, electrochemical process is just by very
Normal incidence is used for wastewater treatment process.Electrochemical method is referred to as " environmental friendliness " technique of electroplating wastewater processing.Along with electrode material
Exploitation, the development of reactor and the improvement to Conventional electrochemical technique of material, electrochemical method is in Electroplating Wastewater Treatment field
In application more and more wide.It specifically includes that galvanic cell method, electroosmose process, electrocoagulation air supporting method, electrochemical redox method
Deng.The advantage of electrochemical process is: be not required to add redox reagent, response speed is fast, floor space is few, easily realize automatization behaviour
Make；But its shortcoming is that power consumption is high, battery lead plate consumption is big, processing cost is high, electrode easily occurs concentration polarization and produces fouling
Deng.
At present, in existing process electroplating wastewater generally there is disadvantages mentioned above in the method for zinc ion.Therefore, it is necessary to break away from
Existing treatment technology thinking, hews out the new way processing Zinc-containing electroplating waste water, and then develops the plating of a kind of new type
The treatment technology of zinc ion in waste water.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides the processing method of a kind of industrial wastewater, containing zinc
The electroplating wastewater of ion enters sump, carries out centralized collection and preliminarily stabilised regulation at this, and the water outlet of sump enters thick lattice
Grid, remove the major diameter solid matter in waste water at this, and the water outlet of coarse rack enters primary sedimentation basin, remove useless further at this
Insoluble matter in water, the water outlet of primary sedimentation basin enters pH value regulating reservoir, and pH value is adjusted to 5.5 ~ 6.5, to meet metal ball
Face micro-electric current attracts what salt eliminated zinc reactor to enter water pH value requirement, and the water outlet of pH value regulating reservoir enters the micro-electric current of metallic spheric surface and inhales
Drawing salt and eliminate zinc reactor, the water outlet that the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor enters Aeration tank, passes through at this
Oxygen 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,
The water outlet in biological oxidation filter tank 7 enters secondary sedimentation tank, is all removed by the residue insoluble matter in waste water at this, secondary precipitation
The water outlet in pond enters water purifying tank, and the outlet of water purifying tank will be arranged outside the purification water outlet after native system processes.
Wherein, the micro-electric current of metallic spheric surface attract salt eliminate zinc reactor use hard stainless steel, on the left of reactor under
Portion is provided with inlet valve, and right upper portion is provided with water discharging valve, and reactor central authorities are provided with 1 set solenoid, and by wire and position
It is connected in the solenoid controlled unit outside reactor, is coated with 1 set water-proof protection cover outside solenoid, in reactor
Portion's filling even has some nickel metal ball, can move with current, and reactor left side top and bottom right side are separately installed with 3 spiral shells
Rotation blade.
After pH value regulation processes, the electroplating wastewater containing zinc ion of (after process, pH value is 5.5 ~ 6.5) is by being positioned at
The inlet valve of reactor left lower enters inside reactor, first the most mixed with the nickel metal ball of inside reactor filling
Closing, nickel metal ball is uniformly distributed in waste water, and now, 6 propeller blades being positioned at reactor left side top and bottom right side are opened
Begin to rotate, promote the waste water being mixed with nickel metal ball to do counterclockwise movement at inside reactor, be positioned at outside reactor meanwhile
Solenoid controlled unit is energized to by wire the solenoid being positioned at reactor central authorities, and solenoid can produce a magnetic strength
Intensity is the electromagnetic field of 11.6T, produces the magnetic induction line in horizontal direction at inside reactor, when the nickel metal ball in waste water is at electricity
Faraday effect can occur when magnetic field is done the motion of perpendicular cuts magnetic induction line, form micro-current cycle on nickel metal ball surface,
Zinc ion in waste water is attracted, and can progressively be enriched in nickel metal ball surface, causes local zinc ion concentration to increase, thus beats
Its chemical equilibrium broken, zinc ion can depart from solution and salinization reaction occurs on nickel metal ball surface, tying with the anion in solution
Symphysis becomes inorganic salts, and is attached to nickel metal ball surface, so that the zinc ion in waste water is removed, through purified treatment
After waste water, discharge reactor by being positioned at the water discharging valve of reactor right upper portion, and enter next treatment process；Meanwhile,
The nickel metal ball having adhered to zinc salt can obtain regeneration by processes such as grinding, cleanings, can be reused；Wherein, pH value regulation
The effect in pond is to regulate the pH value of waste water through primary sedimentation to 5.5 ~ 6.5, to meet the attraction salinization of metallic spheric surface micro-electric current
Water pH value requirement is entered except zinc reactor；Wherein, the effect of Aeration tank is to COD remaining in waste water by aerobic aeration process
Carry out preliminary oxidation resolution process；Wherein, the effect in biological oxidation filter tank is that to carry out the last degree of depth clean for the COD to waste water residual
Change processes.
Wherein, the dischargeable capacity that the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor is 230m3, the work of its propeller blade
Being 380V as voltage, rotating speed is 120 turns/min.
Wherein, a diameter of 25.0mm of the nickel metal ball of zinc reactor eliminated by metallic spheric surface micro-electric current attraction salt, and inside is
Hollow structure, a diameter of 16.7mm of hollow space, the relative density of spheroid is about 0.95 × 103kg/m3。
Wherein, the running voltage of the solenoid that zinc reactor eliminated by metallic spheric surface micro-electric current attraction salt is 380V, it is possible to
Producing magnetic induction is the electromagnetic field of 11.6T, and iron core uses silicone content to be the high silicon sheet iron of 4.2%, and coil uses polyester enamel-cover
Line, number of turns is 2500 circles.
Waste water after being processed by native system, the removal efficiency of its zinc ion is up to 99.5%.
It is an advantage of the current invention that:
(1) the treatment technology thinking of zinc ion during this method has broken away from existing electroplating wastewater, creative make use of nickel metal
Faraday effect can occur when spheroid does the motion of perpendicular cuts magnetic induction line in magnetic field, form micro-electric current at spherome surface and follow
Ring, in water, zinc ion is attracted, and can progressively be enriched in nickel metal ball surface, causes local zinc ion concentration to increase, thus beats
Its chemical equilibrium broken, zinc ion can depart from solution and salinization reaction occurs on nickel metal ball surface, tying with the anion in solution
Symphysis becomes inorganic salts, and is attached to spherome surface, thus reaches to remove the purpose of zinc ion in waste water.
(2) this method is after purified treatment zinc-containing water, and the nickel metal ball having adhered to zinc salt can be waited by grinding, cleaning
Journey obtains regeneration, can be reused, this considerably reduce the supplies consumption of purified treatment.
(3) this method is during purified treatment zinc ion, does not use any chemical agent, thus eliminates introducing danger
The risk of the chemical pollutant that evil is bigger.
(4) this method principle is simple, and design and construction cost is relatively low, and treatment effect is preferable, operation expense
The lowest, be conducive to popularization and application on a large scale.
Accompanying drawing explanation
Fig. 1 is the equipment schematic diagram of the present invention.
In figure: 1-sump, 2-coarse rack, 3-primary sedimentation basin, 4-pH value regulating reservoir, the micro-electric current of 5-metallic spheric surface attract
Salt eliminates zinc reactor, 6-Aeration tank, 7-biological oxidation filter tank, 8-secondary sedimentation tank, 9-water purifying tank
Fig. 2 is that the micro-electric current of metallic spheric surface attracts salt to eliminate the schematic diagram of zinc reactor.
51-inlet valve, 52-solenoid, 53-water-proof protection cover, 54-wire, 55-solenoid controlled unit, 56-
Nickel metal ball, 57-propeller blade, 58-magnetic induction line direction, 59-water discharging valve.
Detailed description of the invention
As it is shown in figure 1, the processing method of zinc in removal electroplating wastewater, the electroplating wastewater containing zinc ion passes through waste line
Entering sump 1, carry out centralized collection and preliminarily stabilised regulation at this, the outlet of sump 1 connects thick lattice by waste line
Grid 2, remove the major diameter solid matter in waste water at this, and the outlet of coarse rack 2 connects primary sedimentation basin 3 by waste line,
Remove the insoluble matter in waste water further at this, the outlet of primary sedimentation basin 3 connects pH value regulating reservoir 4 by waste line,
Waste water carries out the accurate regulation of pH value at this, and the pH value range of pH value regulating reservoir 4 water outlet is 5.5 ~ 6.5, to meet metallic spheric surface
Micro-electric current attracts what salt eliminated zinc reactor 5 to enter water pH value requirement, and the outlet of pH value regulating reservoir 4 connects metal by waste line
The micro-electric current of sphere attracts salt to eliminate zinc reactor 5, and waste water is passed through in the outlet that the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor 5
Pipeline connects Aeration tank 6, by aerobic aeration process, COD remaining in waste water is carried out preliminary oxidation resolution process at this, exposes
The outlet in gas pond 6 connects biological oxidation filter tank 7 by waste line, at this, COD of waste water residual is carried out the last degree of depth clean
Change processes, and the outlet in biological oxidation filter tank 7 is by waste line connecting secondary sedimentation tank 8, at this by insoluble for the residue in waste water
Material all removes, and the outlet of secondary sedimentation tank 8 connects water purifying tank 9 by waste line, and waste pipe is passed through in the outlet of water purifying tank 9
Line will be arranged outside the purification water outlet after native system processes；Wherein, the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor 5 and use
Hard stainless steel, reactor left lower is provided with inlet valve 51, and right upper portion is provided with water discharging valve 59, reactor central authorities
1 set solenoid 52 is installed, and is connected with the solenoid controlled unit 55 being positioned at outside reactor by wire 54, electromagnetism
Coil 52 is outside is coated with 1 set water-proof protection cover 53, and inside reactor filling even has some nickel metal ball 56, can move with current
Dynamic, reactor left side top and bottom right side are separately installed with 3 propeller blades 57；After pH value regulation processes (after process
PH value is 5.5 ~ 6.5) the electroplating wastewater containing zinc ion enter instead by being positioned at the inlet valve 51 of reactor left lower
Answering inside device, the first nickel metal ball 56 with inside reactor filling is sufficiently mixed, and nickel metal ball 56 is uniformly distributed in waste water,
Now, 6 propeller blades 57 being positioned at reactor left side top and bottom right side start to rotate, and promote and are mixed with nickel metal ball 56
Waste water do counterclockwise movement at inside reactor, meanwhile, be positioned at solenoid controlled unit outside reactor 55 by leading
Line 54 is energized to the solenoid 52 being positioned at reactor central authorities, and it is the electricity of 11.6T that solenoid 52 can produce a magnetic induction
Magnetic field, produces the magnetic induction line in horizontal direction at inside reactor, does when the nickel metal ball in waste water and vertically cut in electromagnetic field
Faraday effect can occur when cutting the motion of magnetic induction line, form micro-current cycle on nickel metal ball 56 surface, the zinc in waste water from
Son is attracted, and can progressively be enriched in nickel metal ball 56 surface, causes local zinc ion concentration to increase, thus it is flat to break its chemistry
Weighing apparatus, zinc ion can depart from solution and salinization reaction occurs on nickel metal ball 56 surface, generating nothing with the anion binding in solution
Machine salt, and it is attached to nickel metal ball surface 56, so that the zinc ion in waste water is removed, giving up after purified treatment
Water, discharges reactor by being positioned at the water discharging valve 59 of reactor right upper portion, and enters next treatment process；Meanwhile, the most attached
The nickel metal ball 56 zinc salt can obtain regeneration by processes such as grinding, cleanings, can be reused；Wherein, pH value regulating reservoir 4
Effect be by through primary sedimentation pH value of waste water regulate to 5.5 ~ 6.5, with meet the micro-electric current of metallic spheric surface attract salt eliminate
Zinc reactor 5 enter water pH value requirement；Wherein, the effect of Aeration tank 6 is to COD remaining in waste water by aerobic aeration process
Carry out preliminary oxidation resolution process；Wherein, the effect in biological oxidation filter tank 7 is that the COD to waste water residual carries out the last degree of depth
Purified treatment.Wherein, the dischargeable capacity that the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor is 230m3, its propeller blade
Running voltage is 380V, and rotating speed is 120 turns/min；Wherein, the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor, its nickel metal
A diameter of 25.0mm of ball, inside is hollow structure, a diameter of 16.7mm of hollow space, the relative density of spheroid is about 0.95 ×
103kg/m3；Wherein, the micro-electric current of metallic spheric surface attracts salt to eliminate zinc reactor, and the running voltage of its solenoid is 380V, iron core
Using silicone content is the high silicon sheet iron of 4.2%, and coil uses polyester enamelled wire, and number of turns is 2500 circles.
Waste water after being processed by this method, the removal efficiency of its zinc ion is up to 99.5%.
Claims (6)
1. the processing method of an industrial wastewater, it is characterised in that the electroplating wastewater containing zinc ion enters sump, enters at this
Row centralized collection and preliminarily stabilised regulation, the water outlet of sump enters coarse rack, removes the major diameter solids in waste water at this
Matter, the water outlet of coarse rack enters primary sedimentation basin, removes the insoluble matter in waste water, the water outlet of primary sedimentation basin further at this
Entering pH value regulating reservoir, pH value is adjusted to 5.5 ~ 6.5, attracts what salt eliminated zinc reactor to enter water meeting the micro-electric current of metallic spheric surface
PH value requirement, the water outlet of pH value regulating reservoir enters the micro-electric current of metallic spheric surface and attracts salt to eliminate zinc reactor, the micro-electric current of metallic spheric surface
The water outlet attracting salt to eliminate zinc reactor enters Aeration tank, is carried out COD remaining in waste water by aerobic aeration process at this
Preliminary oxidation resolution process, the water outlet of Aeration tank enters biological oxidation filter tank, and the water outlet in biological oxidation filter tank 7 enters secondary precipitation
Pond, all removes the residue insoluble matter in waste water at this, and the water outlet of secondary sedimentation tank enters water purifying tank, the outlet of water purifying tank
To arrange outside purification water outlet after native system processes.
2. the processing method of an industrial wastewater, it is characterised in that the micro-electric current of metallic spheric surface attracts salt to eliminate the employing of zinc reactor
Hard stainless steel, reactor left lower is provided with inlet valve, and right upper portion is provided with water discharging valve, and reactor central authorities install
There is 1 set solenoid, and be connected with the solenoid controlled unit being positioned at outside reactor by wire, the outside bag of solenoid
Being covered with 1 set water-proof protection cover, inside reactor filling even has some nickel metal ball, can move with current, pushes up on the left of reactor
Portion and bottom right side are separately installed with 3 propeller blades.
The processing method of industrial wastewater the most according to claim 2, it is characterised in that (pH after pH value regulation processes
Value be about 5.5 ~ 6.5) the electroplating wastewater containing zinc ion by be positioned at reactor left lower inlet valve enter reaction
Inside device, the first nickel metal ball with inside reactor filling is sufficiently mixed, and nickel metal ball is uniformly distributed in waste water, now,
6 propeller blades being positioned at reactor left side top and bottom right side start to rotate, and promote the waste water being mixed with nickel metal ball to exist
Inside reactor does counterclockwise movement, is positioned at the solenoid controlled unit outside reactor by wire to being positioned at reaction simultaneously
The solenoid energising of device central authorities, solenoid can produce the electromagnetic field of a certain strength, produces level at inside reactor
Magnetic induction line on direction, can occur farad when the nickel metal ball in waste water does the motion of perpendicular cuts magnetic induction line in electromagnetic field
Effect, forms micro-current cycle on nickel metal ball surface, and the zinc ion in waste water is attracted, and can progressively be enriched in nickel metal
Ball surface, causes local zinc ion concentration to increase, thus breaks its chemical equilibrium, and zinc ion can depart from solution and in nickel metal ball
There is salinization reaction in surface, generates inorganic salts with the anion binding in solution, and be attached to nickel metal ball surface, so that
Zinc ion in waste water is removed, the waste water after purified treatment, by being positioned at the water discharging valve of reactor right upper portion
Discharging reactor, and enter next treatment process, the metal ball body simultaneously having adhered to zinc salt can be obtained by processes such as grinding, cleanings
Must regenerate, can be reused.
The processing method of industrial wastewater the most according to claim 2, it is characterised in that the micro-electric current of metallic spheric surface attracts salinization
Except the dischargeable capacity of zinc reactor is 230m3, the running voltage of its propeller blade is 380V, and rotating speed is 120 turns/min.
The processing method of industrial wastewater the most according to claim 2, it is characterised in that the micro-electric current of metallic spheric surface attracts salinization
Except a diameter of 25.0mm of the metal ball of zinc reactor, inside is hollow structure, a diameter of 16.7mm of hollow space, the phase of spheroid
Density is about 0.95 × 103kg/m3。
The processing method of industrial wastewater the most according to claim 2, it is characterised in that the micro-electric current of metallic spheric surface attracts salinization
Except the running voltage of the solenoid of zinc reactor is 380V, iron core uses silicone content to be the high silicon sheet iron of 4.2%, number of turns
It is 2500 circles.
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| CN109534597A (en) | 2019-03-29 |
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