CN109354140A - A kind of metallic spheric surface micro-current attraction salinization reactor handling industrial wastewater - Google Patents
A kind of metallic spheric surface micro-current attraction salinization reactor handling industrial wastewater Download PDFInfo
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- CN109354140A CN109354140A CN201811486299.0A CN201811486299A CN109354140A CN 109354140 A CN109354140 A CN 109354140A CN 201811486299 A CN201811486299 A CN 201811486299A CN 109354140 A CN109354140 A CN 109354140A
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- reactor
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- nickel metal
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- 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
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- C02F1/66—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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Analytical Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of metallic spheric surface micro-currents for handling industrial wastewater to attract salinization reactor, reactor center is equipped with 1 set of electromagnetic coil, and it is connected by conducting wire with the solenoid controlled unit being located at outside reactor, inside reactor filling even has 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.A kind of special electromagnetic induction phenomenon is utilized in this reactor 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, 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.
Description
Technical field
The present invention relates to a kind of metallic spheric surface micro-currents for handling industrial wastewater to attract salinization reactor, belongs to environmental protection
In field of waste water treatment.
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 total discharged volume of industrial waste water are accounted for, 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 object that chemical method, which is by redox reaction or neutralization-precipitation reaction,
Matter, or directly remove heavy metal from waste water through precipitating or air bearing.It specifically include 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 and maintenance and
Operation is easy；But the disadvantage is that treatment effeciency is low, effluent quality is poor, processing depth as shallow, cannot recycle heavy metal and production
Primary sludge amount is big.
(2) bioanalysis:
The 1980s is derived from using the research of microbiological treatment electroplating wastewater.The mechanism of Biochemical method is alternate symbiosis
Relationship, 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, while microbial flora itself is there are also stronger bioflocculation, electrostatic adsorption, can
Adsorbing metal ions make heavy metal enter bacterium mud cake after being separated by solid-liquid separation, so that discharged wastewater met the national standard or reuse.It is main
It include: bio-flocculation process, biosorption process, biochemical process etc..The advantages of bioanalysis is: selectivity is strong, adsorption capacity is big, no
Few 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 metal from
Son reaction efficiency 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 using impurity contained by ion exchange or the methods of UF membrane or adsorbent removal electroplating wastewater, in industry
On be widely used, be usually used cooperatively with other methods.It specifically includes that ion-exchange, membrane separation process, absorption method, evaporation
Concentration method etc..The advantages of physico-chemical process, is: it is convenient for management, easy to automate, separative efficiency is high, advanced treating effect is good, go out
Water can be with reuse etc.；But physico-chemical process in various degree all there is complex process, energy consumption is high, it is at high cost, take up a large area, operate
It is costly, have the drawbacks such as secondary pollution.
(4) electrochemical process:
Electrochemical process processing wastewater application originate in the 1940s, with power industry development, electrochemical process just it is true
Normal incidence is used for wastewater treatment process.Electrochemical method is referred to as " environmental-friendly " technique of electroplating wastewater processing.With electrode material
The exploitation of material, the development of reactor and the improvement to Conventional electrochemical technique, electrochemical method is in Electroplating Wastewater Treatment field
In application it is more and more wide.It specifically includes that galvanic cell method, electroosmose process, electrocoagulation gas floatation process, electrochemical redox method
Deng.The advantages of electrochemical process, is: be not required to addition redox reagent, reaction speed is fast, occupied area is few, easy realizations automation grasp
Make 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
Deng.
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 micro- electricity of metallic spheric surface for handling industrial wastewater
Stream attracts salinization reactor, and reactor left lower is equipped with inlet valve, and right upper portion is equipped with water discharging valve, reactor center peace
It is connected equipped with 1 set of electromagnetic coil, and by conducting wire with the solenoid controlled unit being located at outside reactor, outside electromagnetic coil
It is coated with 1 set of water-proof protection cover, inside reactor filling even has several nickel metal balls, can be mobile with water flow, on the left of reactor
Top and bottom right side are separately installed with 3 screw blades.
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
Reactor enters the requirement of water pH value；Wherein, the effect of aeration tank is to be carried out by aerobic aeration process to COD remaining in waste water
Preliminary oxidation resolution process；Wherein, the effect in biological oxidation filter tank is that COD remaining to waste water is carried out at last deep purifying
Reason.
Wherein, it is 230m that metallic spheric surface micro-current, which attracts the dischargeable capacity of salinization reactor,3, the work electricity of screw blade
Pressure is 380V, and revolving speed is 120 turns/min.
Wherein, it is 25.0mm that metallic spheric surface micro-current, which attracts the diameter of the nickel metal ball of salinization 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, it is 380V that metallic spheric surface micro-current, which attracts the operating voltage of the electromagnetic coil of salinization reactor, can be generated
Magnetic induction is the electromagnetic field of 11.6T, iron core use silicone content for 4.2% high silicon sheet iron, coil using polyester enamelled wire, around
Number of wire turns is 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 reactor gets rid of the processing technique thinking of zinc ion in existing electroplating wastewater, and creative is utilized nickel gold
Faraday effect can be occurred by belonging to when sphere does the movement of vertical cutting magnetic induction line in magnetic field, formed micro-current in spherome surface and followed
Ring, zinc ion is attracted in water, can gradually be enriched in nickel metal ball surface, 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 spherome surface at inorganic salts, to achieve the purpose that remove zinc ion in waste water.
(2) for this reactor after purified treatment zinc-containing water, the nickel metal ball for having adhered to zinc salt can be by grinding, cleaning
Process is regenerated, and can be reused, and this considerably reduce the supplies consumptions of purified treatment.
(3) this reactor does not use any chemical agent, to eliminate introducing during purified treatment zinc ion
Endanger the risk of bigger chemical pollutant.
(4) this principle of peactor is simple and easy, and cost is relatively low for design and construction, and treatment effect is preferable, operation and maintenance at
This is very low, is conducive to promote and apply on a large scale.
Detailed description of the invention
Fig. 1 is the schematic diagram that metallic spheric surface micro-current attracts salinization 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, the metallic spheric surface micro-current of processing industrial wastewater attracts salinization reactor, metallic spheric surface micro-current is inhaled
Draw salinization reactor 5 and use hard stainless steel material, reactor left lower is equipped with inlet valve 51, and right upper portion is equipped with draining
Valve 59, reactor center are equipped with 1 set of electromagnetic coil 52, and by conducting wire 54 and the solenoid controlled outside reactor
Unit 55 is connected, and 1 set of water-proof protection cover 53 is coated with outside electromagnetic coil 52, and inside reactor filling even has several nickel gold
Belong to ball 56, can be mobile with water flow, reactor left side top and bottom right side are separately installed with 3 screw blades 57；By pH value
The electroplating wastewater containing zinc ion of (pH value is 5.5 ~ 6.5 after processing) is by being located at reactor left lower after adjusting processing
Inlet valve 51 enters inside reactor, and the nickel metal ball 56 with inside reactor filling first is sufficiently mixed, nickel metal ball 56
It 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, pushes away
The dynamic waste water for being mixed with nickel metal ball 56 does counterclockwise movement in inside reactor, meanwhile, the electromagnetic wire outside reactor
It encloses control unit 55 and is powered by conducting wire 54 to the electromagnetic coil 52 positioned at reactor center, electromagnetic coil 52 can generate a magnetic
Feel the electromagnetic field that intensity is 11.6T, the magnetic induction line in horizontal direction is generated in inside reactor, when the nickel metal ball in waste water exists
Faraday effect can occur when doing the movement of vertical cutting magnetic induction line in electromagnetic field, form micro-current on 56 surface of nickel metal ball and follow
Ring, the zinc ion in waste water are attracted, and 56 surface of nickel metal ball can be gradually enriched in, and local zinc ion concentration is caused to increase,
To break its chemical balance, zinc ion can be detached from solution and salinization reaction occurs on 56 surface of nickel metal ball, in solution
Anion binding generates inorganic salts, and is attached to nickel metal ball surface 56, so that the zinc ion in waste water be enable to remove, passes through
Waste water after crossing purified treatment, reactor is discharged in the water discharging valve 59 by being located at reactor right upper portion, and enters next place
Science and engineering sequence；Meanwhile the nickel metal ball 56 for having adhered to zinc salt can be regenerated by the processes such as grinding, cleaning, and can be reused.
Wherein, it is 230m that metallic spheric surface micro-current, which attracts the dischargeable capacity of salinization reactor,3, the operating voltage of screw blade is
380V, revolving speed are 120 turns/min；Wherein, metallic spheric surface micro-current attracts salinization reactor, and the diameter of nickel metal ball is
25.0mm, inside are hollow structure, and hollow space diameter is 16.7mm, and the relative density of sphere is about 0.95 × 103kg/m3；Its
In, metallic spheric surface micro-current attracts salinization reactor, and the operating voltage of electromagnetic coil is 380V, iron core use silicone content for
4.2% high silicon sheet iron, coil use polyester enamelled wire, and number of turns is 2500 circles.
By this system treated waste water, the removal efficiency of zinc ion is up to 99.5%.
Claims (2)
1. a kind of metallic spheric surface micro-current for handling industrial wastewater attracts salinization reactor, which is characterized in that under on the left of reactor
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 that pH value is about 5.5 ~ 6.5 after pH value adjusting processing is by being located on the left of reactor
The inlet valve of lower part enters inside reactor, and the nickel metal ball with inside reactor filling first is sufficiently mixed, nickel metal ball
It is uniformly distributed in waste water, 6 screw blades for being now placed in reactor left side top and bottom right side start turning, and push mixed
Conjunction has the waste water of nickel metal ball to do counterclockwise movement in inside reactor, while being located at the solenoid controlled list outside reactor
Member gives the electromagnetic coil positioned at reactor center to be powered by conducting wire, and electromagnetic coil can generate the electromagnetic field of a certain strength,
The magnetic induction line in horizontal direction is generated in inside reactor, when the nickel metal ball in waste water does vertical cutting magnetic induction in electromagnetic field
Faraday effect can occur when the movement of line, form micro-current circulation in nickel metal ball surface, the zinc ion in waste water is inhaled
Draw, can gradually be enriched in nickel metal ball surface, causes local zinc ion concentration to increase, to break its chemical balance, zinc ion
Solution can be detached from and salinization reaction occurs in nickel metal ball surface, generate inorganic salts with the anion binding in solution, and attached
In nickel metal ball surface, so that the zinc ion in waste water be enable to remove, the waste water after purified treatment is anti-by being located at
It answers the water discharging valve of device right upper portion that reactor is discharged, and enters next treatment process；Meanwhile the metal ball body of zinc salt is adhered to
It can be regenerated, can be reused by grinding, cleaning process, the dischargeable capacity of reactor is 230m3, screw blade
Operating voltage is 380V, and revolving speed is 120 turns/min, and the diameter of the metal ball of reactor is 25.0mm, and inside is hollow structure, in
Empty section diameter is 16.7mm, and the relative density of sphere is 0.95 × 103kg/m3。
2. metallic spheric surface micro-current according to claim 1 attracts salinization reactor, which is characterized in that the work of electromagnetic coil
Making voltage is 380V, and iron core uses silicone content for 4.2% high silicon sheet iron, and number of turns is 2500 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811486299.0A CN109354140A (en) | 2016-08-04 | 2016-08-04 | A kind of metallic spheric surface micro-current attraction salinization reactor handling industrial wastewater |
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| CN201610629766.5A CN106044978B (en) | 2016-08-04 | 2016-08-04 | A kind of metallic spheric surface micro-current attraction salinization reactor handling industrial wastewater |
| CN201811486299.0A CN109354140A (en) | 2016-08-04 | 2016-08-04 | A kind of metallic spheric surface micro-current attraction salinization reactor handling industrial wastewater |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100990A (en) * | 1986-02-07 | 1987-02-11 | 沈阳市电镀协会 | A kind of method and device of handling high concentration chrome wastewater |
| US5951856A (en) * | 1995-10-17 | 1999-09-14 | Electronic Descaling 2000, Inc. | Water hardness reduction through interactive molecular agitation and filtration |
| CN102020390A (en) * | 2009-09-10 | 2011-04-20 | 李明 | Magnetoelectric nanofiltration sewage purification system and purification process |
| CN103359809A (en) * | 2013-07-11 | 2013-10-23 | 陈艺文 | Ion removing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103478874B (en) * | 2013-09-11 | 2015-03-18 | 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 |
-
2016
- 2016-08-04 CN CN201811486299.0A patent/CN109354140A/en not_active Withdrawn
- 2016-08-04 CN CN201610629766.5A patent/CN106044978B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100990A (en) * | 1986-02-07 | 1987-02-11 | 沈阳市电镀协会 | A kind of method and device of handling high concentration chrome wastewater |
| US5951856A (en) * | 1995-10-17 | 1999-09-14 | Electronic Descaling 2000, Inc. | Water hardness reduction through interactive molecular agitation and filtration |
| CN102020390A (en) * | 2009-09-10 | 2011-04-20 | 李明 | Magnetoelectric nanofiltration sewage purification system and purification process |
| CN103359809A (en) * | 2013-07-11 | 2013-10-23 | 陈艺文 | Ion removing device |
Non-Patent Citations (1)
| Title |
|---|
| 孙彤等: "《电机与电气控制项目教程》", 30 November 2013, 北京理工大学出版社 * |
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| CN106044978A (en) | 2016-10-26 |
| CN106044978B (en) | 2019-03-08 |
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