CN106045229B - A kind of processing method of industrial wastewater - Google Patents
A kind of processing method of industrial wastewater Download PDFInfo
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- CN106045229B CN106045229B CN201610629767.XA CN201610629767A CN106045229B CN 106045229 B CN106045229 B CN 106045229B CN 201610629767 A CN201610629767 A CN 201610629767A CN 106045229 B CN106045229 B CN 106045229B
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- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 11
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000011701 zinc Substances 0.000 claims abstract description 36
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 36
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 28
- 150000003839 salts Chemical class 0.000 claims abstract description 27
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 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 14
- 230000006698 induction Effects 0.000 claims abstract description 11
- 230000003750 conditioning effect Effects 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 150000001450 anions Chemical class 0.000 claims abstract description 5
- 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 69
- 229910052759 nickel Inorganic materials 0.000 claims description 35
- 238000009713 electroplating Methods 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 21
- 238000011282 treatment Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- 230000005672 electromagnetic field Effects 0.000 claims description 5
- 239000000463 material Substances 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
- 239000007788 liquid Substances 0.000 claims description 2
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 claims 1
- 230000005674 electromagnetic induction Effects 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 10
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- 238000001311 chemical methods and process Methods 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
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- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—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
Abstract
The invention discloses a kind of processing method of industrial wastewater, waste water passes sequentially through sump, coarse rack, primary sedimentation basin, pH value conditioning tank, metallic spheric surface micro-current and attracts that salt eliminates zinc reactor, aeration tank, biological oxidation filter tank, secondary sedimentation tank, water purifying tank are handled.A kind of special electromagnetic induction phenomenon is utilized in this method creativeness, Faraday effect can occur when metal ball body does the movement of vertical cutting magnetic induction line in magnetic field, micro-current circulation is formed on metal ball body surface, zinc ion is attracted in water, spherome surface can be gradually enriched in, local zinc ion concentration is caused to increase, zinc ion can be detached from solution and salinization reaction occurs on metal ball body surface, inorganic salts are generated with the anion binding in solution, and it is attached to metal ball body surface, to achieve the purpose that remove zinc ion in waste water.Meanwhile the metal ball body for having adhered to zinc salt can be regenerated by the processes such as grinding, cleaning, and can be reused.
Description
Technical field
The present invention relates to a kind of processing method of industrial wastewater, belong to the field of waste water treatment in environmental protection.
Background technique
Electroplating industry is the important processing industry in China, is quickly grown nearly ten years.But due to point of China's electroplating industry
Cloth and development lack overall, complete planning for a long time, cause more one side factory point, small scale, low degree of specialized division of labor,
It is of poor benefits, the serious hard case of another aspect electroplating industry pollution situation.
According to statistical data at this stage, there are about electroplate factory 15000, average annual electroplating wastewater discharge amounts to be up to 4,000,000,000 tons in China,
/ 6th of the total discharged volume of industrial waste water of Zhan, but wherein there are about 50% electroplating wastewaters to be not up to national emission standard.For a long time with
Come, China's electroplating enterprise is with the characteristics of the extensive management for largely consuming resource, and compared with foreign countries, there are bright for China's electroplating industry
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 in China be 0.82
Ton is external more than 10 times, and annual processing cost of China's single pair containing heavy metal-containing electroplating effluent is as high as 400,000,000 yuan or more.Plating
Waste water quality is complicated, is related to various heavy metal ion and cyanide, some also contain carcinogenic, teratogenesis, mutagenic extremely toxic substance,
It does great harm to human beings.If these electroplating wastewaters not up to discharge standard is directly entered environment, inherently to ecological environment and people
Class generates extensive and serious harm.In addition, the heavy metal in recycling electroplating wastewater can thoroughly utilize resource, great warp comprehensively
Ji value.Therefore the problem of improvement of electroplating wastewater is the most important thing of industrial wastewater treatment.
In many harmful components of electroplating wastewater, zinc is very important one kind.Zinc is that human health is indispensable
Element, it is widely present in human muscle and bone, but content is little, if serious consequence will occur for excess.Containing zinc
The discharge of electroplating wastewater, which has human health and industrial or agricultural activity, to be seriously endangered, and has persistence, toxicity big, seriously polluted etc.
Harm, it is most of to participate in food chains circulation once into cannot be biodegradable after environment, and finally accumulate in vivo,
Organism normal physiological metabolic activity is destroyed, is detrimental to health.As the mankind are raw to exploitation, smelting, processing of heavy metal etc.
Produce it is movable increasingly increase, the heavy metal wastewater thereby of generation either all greatly increases in quantity or in type, causes tight
The environmental pollution and the wasting of resources of weight.Therefore the improvement of Zinc-containing electroplating waste water is still the great research class of world's environment protection field
Topic.
Currently, China is mainly the following processing method for Zinc-containing electroplating waste water:
(1) chemical method:
It by poisonous and hazardous substance decomposition is nontoxic that chemical method, which is by redox reaction or neutralization-precipitation reaction,
Substance, or directly by heavy metal through precipitating or air bearing removed from waste water.It specifically includes that the precipitation method, oxidizing process, reduction
Method, neutralisation and gas floatation process etc..The advantages of chemical method is: small investment, processing unit are simple, processing cost is lower, installation dimension
It repairs and operates and be easy；But the disadvantage is that treatment effeciency is low, effluent quality is poor, processing depth as shallow, cannot recycle heavy metal with
And generation sludge quantity is big.
(2) bioanalysis:
The 1980s is derived from using the research of microbiological treatment electroplating wastewater.The mechanism of Biochemical method is alternate
The relationship of symbiosis, have three levels such as chemistry, physics and heredity cooperates mechanism.Some microbial metabolic products can make
Heavy metal ion in waste water changes valence state, while microbial flora itself also stronger bioflocculation, electrostatic adsorption,
Can adsorbing metal ions, make heavy metal after being separated by solid-liquid separation enter bacterium mud cake so that discharged wastewater met the national standard or reuse.It
Specifically include that bio-flocculation process, biosorption process, biochemical process etc..The advantages of bioanalysis, is: selective strong, adsorption capacity
Greatly, few without using chemical agent, generation sludge quantity, the Heavy Metals in Sludge rate of recovery is high；But the disadvantage is that in function bacterium and waste water
The reaction efficiency of metal ion it is not high and cultivate strain culture medium consumption it is larger, cause processing cost still higher etc..
(3) physico-chemical process:
Physico-chemical process is to remove impurity contained by electroplating wastewater using ion exchange or the methods of UF membrane or adsorbent,
It is industrially widely used, is usually used cooperatively with other methods.It specifically include that ion-exchange, membrane separation process, absorption method,
Evaporation concentration method etc..The advantages of physico-chemical process, is: convenient for management, easy to automate, separative efficiency is high, advanced treating effect
Good, water outlet can be with reuse etc.；But physico-chemical process in various degree all there is complex process, energy consumption is high, at high cost, occupied area
Greatly, running expense is high, has the drawbacks such as secondary pollution.
(4) electrochemical process:
Electrochemical process processing wastewater application originate in the 1940s, with power industry development, electrochemical process
Veritably it is used for wastewater treatment process.Electrochemical method is referred to as " environmental-friendly " technique of electroplating wastewater processing.With electricity
The exploitation of pole material, the development of reactor and the improvement to Conventional electrochemical technique, electrochemical method is in Electroplating Wastewater Treatment
Application in field is more and more wide.It specifically includes that galvanic cell method, electroosmose process, electrocoagulation gas floatation process, electrochemical oxidation also
Former method etc..The advantages of electrochemical process, is: be not required to addition redox reagent, reaction speed is fast, occupied area is few, it is easy realize it is automatic
Change operation etc.；But the disadvantage is that power consumption is high, electrode plate consumption is big, processing cost is high, electrode easily occurs concentration polarization and generates
Fouling etc..
Currently, the existing generally existing disadvantages mentioned above of method for handling zinc ion in electroplating wastewater.Therefore, it is necessary to get rid of
Existing processing technique thinking, hews out the new way of processing Zinc-containing electroplating waste water, and then develops a kind of plating of new type
The processing technique of zinc ion 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 industrial wastewater, contain zinc
The electroplating 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 pH value is adjusted to 5.5 ~ 6.5, to meet metal ball
The water pH value that enters that face micro-current attracts salt to eliminate zinc reactor requires, and the water outlet of pH value conditioning tank enters the suction of metallic spheric surface micro-current
Draw salt and eliminate zinc reactor, the water outlet that metallic spheric surface micro-current attracts salt to eliminate zinc reactor enters aeration tank, passes through herein
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, herein all removes the remaining insoluble matter in waste water, secondary precipitation
The water outlet in pond enters water purifying tank, and the outlet of water purifying tank will be by this system treated purification water outlet outlet.
Wherein, metallic spheric surface micro-current attracts salt to eliminate zinc reactor using hard stainless steel material, on the left of reactor under
Portion is equipped with inlet valve, and right upper portion is equipped with water discharging valve, and reactor center is equipped with 1 set of electromagnetic coil, and by conducting wire and position
Solenoid controlled unit outside reactor is connected, and is coated with 1 set of water-proof protection cover outside electromagnetic coil, in reactor
Portion's filling even has several nickel metal balls, can be mobile with water flow, and reactor left side top and bottom right side are separately installed with 3 spiral shells
Revolve blade.
The electroplating wastewater containing zinc ion of (pH value is 5.5 ~ 6.5 after processing) is by being located at after pH value adjusting processing
The inlet valve of reactor left lower enters inside reactor, sufficiently mixed with the nickel metal ball of inside reactor filling first
It closes, nickel metal ball is uniformly distributed in waste water, at this point, 6 screw blades for being located at reactor left side top and bottom right side are opened
Begin to rotate, the waste water for being mixed with nickel metal ball is pushed to do counterclockwise movement in inside reactor, meanwhile, outside reactor
Solenoid controlled unit gives the electromagnetic coil positioned at reactor center to be powered by conducting wire, and electromagnetic coil can generate a magnetic strength
Intensity is the electromagnetic field of 11.6T, the magnetic induction line in horizontal direction is generated in inside reactor, when the nickel metal ball in waste water is in electricity
Faraday effect can occur when doing the movement of vertical cutting magnetic induction line in magnetic field, form micro-current circulation in nickel metal ball surface,
Zinc ion in waste water is attracted, and nickel metal ball surface can be gradually enriched in, and causes local zinc ion concentration to increase, to beat
Its chemical balance is broken, zinc ion can be detached from solution and salinization reaction occurs in nickel metal ball surface, with the anion knot in solution
Symphysis is attached to nickel metal ball surface at inorganic salts, to enable the zinc ion in waste water to remove, by purified treatment
Waste water afterwards, reactor is discharged in the water discharging valve by being located at reactor right upper portion, and enters next treatment process；Meanwhile
The nickel metal ball for having adhered to zinc salt can be regenerated by the processes such as grinding, cleaning, and can be reused；Wherein, pH value is adjusted
The effect in pond is will to be adjusted to 5.5 ~ 6.5 by the pH value of waste water of primary sedimentation, attracts salinization to meet metallic spheric surface micro-current
Enter the requirement of water pH value except zinc reactor；Wherein, the effect of aeration tank is by aerobic aeration process to COD remaining in waste water
Carry out preliminary oxidation resolution process；Wherein, it is net to be that COD remaining to waste water carries out last depth for the effect in biological oxidation filter tank
Change processing.
Wherein, it is 230m that metallic spheric surface micro-current, which attracts salt to eliminate the dischargeable capacity of zinc reactor,3, the work of screw blade
Making voltage is 380V, and revolving speed is 120 turns/min.
Wherein, it is 25.0mm that metallic spheric surface micro-current, which attracts salt to eliminate the diameter of the nickel metal ball of zinc reactor, and inside is
Hollow structure, hollow space diameter are 16.7mm, and the relative density of sphere is about 0.95 × 103kg/m3。
Wherein, the operating voltage for the electromagnetic coil that metallic spheric surface micro-current attracts salt to eliminate zinc reactor is 380V, can
The electromagnetic field that magnetic induction is 11.6T is generated, iron core uses silicone content for 4.2% high silicon sheet iron, and coil is using polyester enamel-cover
Line, number of turns are 2500 circles.
By this system treated waste water, the removal efficiency of zinc ion is up to 99.5%.
The present invention has the advantages that
(1) this method gets rid of the processing technique thinking of zinc ion in existing electroplating wastewater, and creative is utilized nickel
When doing the movement of vertical cutting magnetic induction line in magnetic field Faraday effect can occur for metal ball body, form micro-current in spherome surface
It recycling, zinc ion is attracted in water, can gradually be enriched in nickel metal ball surface, and cause local zinc ion concentration to increase, thus
Break its chemical balance, zinc ion can be detached from solution and salinization reaction occurs in nickel metal ball surface, with the anion in solution
In conjunction with generation inorganic salts, and it is attached to spherome surface, to achieve the purpose that remove zinc ion in waste water.
(2) after purified treatment zinc-containing water, the nickel metal ball for having adhered to zinc salt can be waited this method by grinding, cleaning
Journey is regenerated, and can be reused, and this considerably reduce the supplies consumptions of purified treatment.
(3) this method does not use any chemical agent during purified treatment zinc ion, to eliminate introducing danger
The risk of the bigger chemical pollutant of evil.
(4) this method principle is simple and easy, and cost is relatively low for design and construction, and treatment effect is preferable, operation expense
It is very low, be conducive to promote and apply on a large scale.
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- metallic spheric surface micro-current attract
Salt eliminates zinc reactor, the aeration tank 6-, 7- biological oxidation filter tank, 8- secondary sedimentation tank, 9- water purifying tank
Fig. 2 is the schematic diagram that metallic spheric surface micro-current attraction salt eliminates zinc reactor.
51- inlet valve, 52- electromagnetic coil, 53- water-proof protection cover, 54- conducting wire, 55- solenoid controlled unit, 56-
Nickel metal ball, 57- screw blade, 58- magnetic induction line direction, 59- water discharging valve.
Specific embodiment
As shown in Figure 1, removing the processing method of zinc in electroplating wastewater, the electroplating wastewater containing zinc ion 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 5.5 ~ 6.5, to meet metallic spheric surface
The water pH value that enters that micro-current attracts salt to eliminate zinc reactor 5 requires, and the outlet of pH value conditioning tank 4 connects metal by waste line
Spherical surface micro-current attracts salt to eliminate zinc reactor 5, and the outlet that metallic spheric surface micro-current attracts salt to eliminate zinc reactor 5 passes through waste water
Pipeline connects aeration tank 6, carries out preliminary oxidation resolution process to COD remaining in waste water by aerobic aeration process herein, exposes
The outlet in gas pond 6 connects biological oxidation filter tank 7 by waste line, and at this, it is net to carry out last depth by COD remaining to waste water
The outlet of change processing, biological oxidation filter tank 7 connects secondary sedimentation tank 8 by waste line, herein that the residue in waste water is insoluble
Substance all removes, and the outlet of secondary sedimentation tank 8 connects water purifying tank 9 by waste line, and the outlet of water purifying tank 9 passes through waste pipe
Line will by this system treated purification water outlet outlet；Wherein, metallic spheric surface micro-current attracts salt to eliminate the use of zinc reactor 5
Hard stainless steel material, reactor left lower are equipped with inlet valve 51, and right upper portion is equipped with water discharging valve 59, reactor center
1 set of electromagnetic coil 52 is installed, and is connected by conducting wire 54 with the solenoid controlled unit 55 being located at outside reactor, electromagnetism
1 set of water-proof protection cover 53 is coated with outside coil 52, inside reactor filling even there are several nickel metal balls 56, can move with water flow
Dynamic, reactor left side top and bottom right side are separately installed with 3 screw blades 57；After pH value adjusting processing (after processing
PH value is 5.5 ~ 6.5) the electroplating wastewater containing zinc ion by be located at the inlet valve 51 of reactor left lower enter it is anti-
It answers inside device, the nickel metal ball 56 with inside reactor filling is sufficiently mixed first, and nickel metal ball 56 is uniformly distributed in waste water,
At this point, 6 screw blades 57 for being located at reactor left side top and bottom right side start turning, promotion is mixed with nickel metal ball 56
Waste water do counterclockwise movement in inside reactor, meanwhile, solenoid controlled unit 55 outside reactor is by leading
Line 54 gives the electromagnetic coil 52 positioned at reactor center to be powered, and electromagnetic coil 52 can generate the electricity that a magnetic induction is 11.6T
Magnetic field generates the magnetic induction line in horizontal direction in inside reactor, does in electromagnetic field when the nickel metal ball in waste water and vertically cut
Faraday effect can occur when cutting the movement of magnetic induction line, form micro-current circulation on 56 surface of nickel metal ball, the zinc in waste water from
Son is attracted, and 56 surface of nickel metal ball can be gradually enriched in, and local zinc ion concentration is caused to increase, so that it is flat to break its chemistry
Weighing apparatus, zinc ion can be detached from solution and salinization reaction occur on 56 surface of nickel metal ball, generate 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 enable to remove, it is useless after purified treatment
Water, reactor is discharged in the water discharging valve 59 by being located at reactor right upper portion, and enters next treatment process；Meanwhile it is attached
The nickel metal ball 56 of zinc salt can be regenerated by the processes such as grinding, cleaning, can be reused；Wherein, pH value conditioning tank 4
Effect be that will be adjusted to 5.5 ~ 6.5 by the pH value of waste water of primary sedimentation, attract salt to eliminate to meet metallic spheric surface micro-current
Zinc reactor 5 enters the requirement of water pH value；Wherein, the effect of aeration tank 6 is by aerobic aeration process to COD remaining in waste water
Carry out preliminary oxidation resolution process；Wherein, the effect in biological oxidation filter tank 7 is that COD remaining to waste water carries out last depth
Purified treatment.Wherein, it is 230m that metallic spheric surface micro-current, which attracts salt to eliminate the dischargeable capacity of zinc reactor,3, screw blade
Operating voltage is 380V, and revolving speed is 120 turns/min；Wherein, metallic spheric surface micro-current attracts salt to eliminate zinc reactor, nickel metal
The diameter of ball is 25.0mm, and inside is hollow structure, and hollow space diameter is 16.7mm, the relative density of sphere is about 0.95 ×
103kg/m3；Wherein, metallic spheric surface micro-current attracts salt to eliminate zinc reactor, and the operating voltage of electromagnetic coil is 380V, iron core
Use silicone content for 4.2% high silicon sheet iron, for coil using polyester enamelled wire, number of turns is 2500 circles.
By this method treated waste water, the removal efficiency of zinc ion is up to 99.5%.
Claims (4)
1. a kind of processing method of industrial wastewater, which is characterized in that the electroplating wastewater containing zinc ion 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, pH value is adjusted to 5.5 ~ 6.5, attracts what salt eliminated zinc reactor to enter water to meet metallic spheric surface micro-current
PH value requirement, the water outlet of pH value conditioning tank enter metallic spheric surface micro-current and salt are attracted to eliminate zinc reactor, metallic spheric surface micro-current
The water outlet for attracting salt to eliminate zinc reactor enters aeration tank, is carried out herein by aerobic aeration process to COD remaining in waste water
Preliminary oxidation resolution process, the water outlet of aeration tank enter biological oxidation filter tank, and the water outlet in biological oxidation filter tank 7 enters secondary precipitation
Pond herein all removes the remaining insoluble matter in waste water, and the water outlet of secondary sedimentation tank enters water purifying tank, the outlet of water purifying tank
Will by this system treated purification water outlet outlet；
Metallic spheric surface micro-current attracts salt to eliminate zinc reactor using hard stainless steel material, and reactor left lower is equipped with water inlet
Valve, right upper portion are equipped with water discharging valve, and reactor center is equipped with 1 set of electromagnetic coil, and by conducting wire and is located at outside reactor
The solenoid controlled unit in portion is connected, and 1 set of water-proof protection cover, inside reactor filling even are coated with outside electromagnetic coil
There are several nickel metal balls, can be mobile with water flow, reactor left side top and bottom right side are separately installed with 3 screw blades；Through
Cross pH value adjusting processing after pH value be 5.5 ~ 6.5 the electroplating wastewater containing zinc ion by be located at reactor left lower into
Penstock enters inside reactor, and the nickel metal ball with inside reactor filling first is sufficiently mixed, and nickel metal ball is uniformly distributed
In waste water, at this point, 6 screw blades for being located at reactor left side top and bottom right side start turning, promotion is mixed with nickel
The waste water of metal ball does counterclockwise movement in inside reactor, while the solenoid controlled unit being located at outside reactor passes through
Conducting wire gives the electromagnetic coil positioned at reactor center to be powered, and electromagnetic coil can generate the electromagnetic field of a certain strength, react
The magnetic induction line in horizontal direction is generated inside device, when the nickel metal ball in waste water does the fortune of vertical cutting magnetic induction line in electromagnetic field
Faraday effect can occur when dynamic, form micro-current circulation in nickel metal ball surface, the zinc ion in waste water is attracted, can be by
Step is enriched in nickel metal ball surface, causes local zinc ion concentration to increase, to break its chemical balance, zinc ion can be detached from molten
Simultaneously in nickel metal ball surface salinization reaction occurs for liquid, generates inorganic salts with the anion binding in solution, and be attached to nickel gold
Belong to ball surface, so that the zinc ion in waste water is enable to remove, the waste water after purified treatment, by being located on the right side of reactor
Reactor is discharged in the water discharging valve on top, and enters next treatment process, while the metal ball body for having adhered to zinc salt can be by grinding
Mill, cleaning process are regenerated, and can be reused.
2. the processing method of industrial wastewater according to claim 1, which is characterized in that metallic spheric surface micro-current attracts salinization
Except the dischargeable capacity of zinc reactor is 230m3, the operating voltage of screw blade is 380V, and revolving speed is 120 turns/min.
3. the processing method of industrial wastewater according to claim 1, which is characterized in that metallic spheric surface micro-current attracts salinization
Except the diameter of the metal ball of zinc reactor is 25.0mm, inside is hollow structure, and hollow space diameter is 16.7mm, the phase of sphere
It is 0.95 × 10 to density3kg/m3。
4. the processing method of industrial wastewater according to claim 1, which is characterized in that metallic spheric surface micro-current attracts salinization
Except zinc reactor electromagnetic coil operating voltage be 380V, iron core use silicone content for 4.2% high silicon sheet iron, number of turns
For 2500 circles.
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| US3767545A (en) * | 1971-06-07 | 1973-10-23 | Interface Dev Co Inc | Process and apparatus for removing ions from liquids |
| CN101734765A (en) * | 2008-11-12 | 2010-06-16 | 张步健 | Lorentz force electrophoresis water purifier |
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| CN203653315U (en) * | 2014-01-07 | 2014-06-18 | 連柏全 | Water treater |
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| CN105693044A (en) * | 2016-04-25 | 2016-06-22 | 陈逸君 | Treatment system for removing zinc in electroplating wastewater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359809B (en) * | 2013-07-11 | 2015-06-10 | 赵然 | Ion removing device |
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| US3767545A (en) * | 1971-06-07 | 1973-10-23 | Interface Dev Co Inc | Process and apparatus for removing ions from liquids |
| CN101734765A (en) * | 2008-11-12 | 2010-06-16 | 张步健 | Lorentz force electrophoresis water purifier |
| CN103478874A (en) * | 2013-09-11 | 2014-01-01 | 江南大学 | Processing method for program control weak electrolyte dipping function food based on magnetic trap |
| CN203653315U (en) * | 2014-01-07 | 2014-06-18 | 連柏全 | Water treater |
| CN105601052A (en) * | 2016-03-17 | 2016-05-25 | 杭州启澄科技有限公司 | Treatment method for removing lead in electroplating wastewater |
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