CN205741153U - Heavy metal the device of recycling in a kind of waste acid recovery - Google Patents
Heavy metal the device of recycling in a kind of waste acid recovery Download PDFInfo
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- CN205741153U CN205741153U CN201521119286.1U CN201521119286U CN205741153U CN 205741153 U CN205741153 U CN 205741153U CN 201521119286 U CN201521119286 U CN 201521119286U CN 205741153 U CN205741153 U CN 205741153U
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- heavy metal
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- recycling
- waste acid
- acid recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
This utility model provides heavy metal the device of recycling in a kind of waste acid recovery, solves the problems such as prior art waste residue yield is big, operating cost is high, the response rate is low.In waste acid recovery, the device of heavy metal recycling includes: buffer tank；Pre-filtrating equipment, is connected with described buffer tank；One-level membranous system, is connected with described pre-filtrating equipment；Intermediate water tank, is connected with described one-level membranous system；Secondary membrane system, is connected with described intermediate water tank；Permeate case, is connected with described secondary membrane system；Concentrated solution case, is connected with described secondary membrane system；Electrolysis unit, is connected with described concentrated solution case.This utility model beneficial effect: achieve the minimizing process of spent acid, waste residue yields poorly, heavy metal recovery rate is high, processing cost is low.
Description
Technical field
This utility model belongs to hazardous waste process field, particularly relates to heavy metal resource profit in a kind of waste acid recovery
Device.
Background technology
Along with industry and expanding economy, the spent acid that China produces every year is more than 100,000,000 tons, and according to China Chemical Industry information
Center investigation statistics, the most inorganic spent acid accounts for 35 %, and organic spent acid accounts for 65 %, and the spent acid of content 40 more than % accounts for total amount
About 46 %.Industrial waste acid mostlys come from the production of the industrial chemicals such as petroleum refining, sulphuric acid, iron and steel processing washing, bronze life
The field such as pickling, electronic components fabrication of producing.Owing to spent acid typically contains Organic substance and heavy metal ion, directly utilize and can cause two
Can cause soil acidification in secondary pollution, and undressed spent acid entrance natural environment, the heavy metal in spent acid is at acid soil
In earth, activity is higher is easily absorbed by plants, and then food safety is caused major hidden danger.The environmental protection faced along with China and human body
Healthy and safe pressure is increasingly serious, and therefore government-to-businesses cleans the environmental protection of the aspects such as production, energy-saving and emission-reduction, wastewater pollution prevention
Requirement improves constantly.
At present, the process technique that China's spent acid is typically taked is neutralization precipitation method, and this technique not only needs to consume substantial amounts of
Nertralizer, also can produce substantial amounts of solid slag, and operating cost is higher, and the response rate is low, and neutralization precipitation method can not be from simultaneously
Fundamentally eliminating pollution, and simply shifted in different medium by pollutant, the most poisonous and hazardous material is from water
Transfer in solid slag, cause secondary pollution, form the vicious cycle of " control and be unequal to controlling ", along with country is to industrial residue problem
Attention, this process technique exist drawback become increasingly conspicuous.On the other hand, part industrial waste acid also uses pyrohydrolysis and evaporation
Method, but this process energy consumption is excessive, is unsuitable for industrial applications on a large scale, is only applicable to the particular components that added value of product is high.
Although natural environment and health can be caused serious harm by spent acid, but spent acid generally comprises simultaneously and have
Sulphuric acid that recoverable is worth or nitric acid and metal values (such as copper or nickel).Based on material recycle and recycling economy
Theory, has been increasingly becoming China's spent acid from simple spent acid qualified discharge to recovery valuable metal and the transformation of water resource reuse technology
The development trend processed.In spent acid traditional in industry, heavy metal recovery technique generally uses electroplating technology by heavy metal ion
Be reduced to metallic state, but metal recovery rate with reclaim metal quality can because of during in spent acid the reduction of tenor and be subject to
Impact, it is therefore desirable to tenor in timing detection spent acid, and supplementary spent acid, in turn results in technique loaded down with trivial details, needs substantial amounts of people
Power.And general employing of reclaiming of acid solution adds the acid solution that thermal distillation technique is relatively low to reclaim boiling point in spent acid, such as, reclaim boiling point low
In the nitric acid of sulphuric acid, but the sulphuric acid reclaiming boiling point higher then needs extra recycling equipment, causes complex process and returns
This raising of harvest.
In sum, traditional in industry spent acid processes and recovery process all exists some not in actual application
Foot, as easily caused secondary pollution, technique is loaded down with trivial details, the response rate is low, cost recovery is high, therefore explores weight in the spent acid that exploitation makes new advances
Industrial-Enterprises in China cleaning is produced by the method and apparatus of metal recovery recycling, energy-saving and emission-reduction have important meaning
Justice.
Utility model content
This utility model provides heavy metal the device of recycling in a kind of waste acid recovery, solves existing technique
The waste residue that technology produces easily causes the problems such as secondary pollution, technique is loaded down with trivial details, the response rate is low, cost recovery is high.
The technical solution of the utility model is achieved in that
Heavy metal the device of recycling in a kind of waste acid recovery, including:
Buffer tank, for carrying out the regulation of water quality and quantity, it is ensured that subsequent treatment process stable operation to spent acid；
Pre-filtrating equipment, for removing the particulate matters such as float in spent acid waste water, colloidal substance, with described buffer tank
Connect；
One-level membranous system, for removing the float and colloidal substance failing to retain in pre-filtration system, with described pre-mistake
Filter device connects；
Intermediate water tank, for collecting the water outlet of one-level membranous system, is connected with described one-level membranous system；
Secondary membrane system, for separating acid solution, anion and the metal ion in spent acid, is connected with described intermediate water tank；
Permeate case, is used for collecting in described secondary membrane system the monovalent ion containing major part (such as F-、Cl-) permeate, with
Described secondary membrane system connects；
Concentrated solution case, is used for collecting in described secondary membrane system containing a small amount of F-And Cl-Concentrated solution, with described secondary membrane system
System connects；
Electrolysis unit, for reclaiming the precious metal in concentrated solution, is connected with described concentrated solution case.
Further, described pre-filtrating equipment is more medium filter, sand filtering device, active carbon filter or bag type filtering
One or more in device.
Further, described one-level membranous system includes that some ultrafiltration or micro-filtration membrane, described ultrafiltration or micro-filtration membrane are tubular membrane
Or the one in rolled film.
Further, the membrane component material of described one-level membranous system is politef (PTFE), polyether sulfone (PES), gathers
One in ethylene (PE) or polysulfones (PSF).
Further, described secondary membrane system is for including the acidproof NF membrane of some special types, and the acidproof NF membrane of described special type is
One in tubular membrane or rolled film.
Further, in described secondary membrane system, the membrane material of extraordinary acidproof NF membrane is polysulfones (PSF), politef
(PTFE) one or in polyethylene (PE).
Further, described electrolysis unit is reverse-flow type electrolysis unit, swinging electrolysis unit or tumble type electrolysis unit
In one.
Further, the one during the electrode of described electrolysis unit is graphite electrode or lead electrode.
The beneficial effects of the utility model are:
Heavy metal the method and apparatus of recycling in waste acid recovery the most described in the utility model, by membrance separation,
Chemistry neutralizes and combines with electrolysis tech, it is to avoid traditional neutralization precipitation technique generation waste residue causes the deficiency of secondary pollution,
Achieve spent acid, the minimizing of waste residue processes, and can carry out the recovery of acid solution and heavy metal, and then increases certain for enterprise
Economic benefit.
Heavy metal the method and apparatus of recycling, secondary membrane system in waste acid recovery the most described in the utility model
SO in permeate4 2-Heavy metal concentration above with bivalence is low, and during follow-up neutralisation treatment, waste residue yield reduces, and spent acid decrement
Change degree is high, can reach 30 % ~ 50 %.
Heavy metal the method and apparatus of recycling in waste acid recovery the most described in the utility model, spent acid is processed into
This is low.
Heavy metal the method and apparatus of recycling in waste acid recovery the most described in the utility model, the response rate is high,
Restored acid liquid and heavy metal all can be back in commercial production, it is achieved recycling.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, at the precursor not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is heavy metal the structured flowchart of resource utilization device in a kind of waste acid recovery of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The all other embodiments obtained, broadly fall into the scope of this utility model protection.
As it is shown in figure 1, heavy metal the device of recycling in a kind of waste acid recovery described in the utility model, bag
Include:
Buffer tank, for carrying out the regulation of water quality and quantity, it is ensured that subsequent treatment process stable operation to spent acid；
Pre-filtrating equipment, for removing the particulate matters such as float in spent acid waste water, colloidal substance, with described buffer tank
Connect；
One-level membranous system, for removing the float and colloidal substance failing to retain in pre-filtration system, with described pre-mistake
Filter device connects；
Intermediate water tank, for collecting the water outlet of one-level membranous system, is connected with described one-level membranous system；
Secondary membrane system, for separating acid solution, anion and the metal ion in spent acid, is connected with described intermediate water tank；
Permeate case, is used for collecting in described secondary membrane system the monovalent ion containing major part (such as F-、Cl-) permeate, with
Described secondary membrane system connects；
Concentrated solution case, is used for collecting in described secondary membrane system containing a small amount of F-And Cl-Concentrated solution, with described secondary membrane system
System connects；
Electrolysis unit, for reclaiming the precious metal in concentrated solution, is connected with described concentrated solution case.
Preferably, described pre-filtrating equipment is more medium filter, sand filtering device, active carbon filter or bag filter
In one or more.Wherein, more medium filter is to utilize one or more media, makes water lead under certain pressure conditions
Cross certain thickness granular or on-granulated filtrate, thus effectively remove the float in water and colloid makes the device of clarification of water,
Conventional filtrate has quartz sand, anthracite, gravel, magnetic iron ore or anthracite etc..
Preferably, described one-level membranous system include some ultrafiltration or micro-filtration membrane, described ultrafiltration or micro-filtration membrane be tubular membrane or
One in rolled film.
Preferably, the membrane component material of described one-level membranous system is politef (PTFE), polyether sulfone (PES), poly-second
One in alkene (PE) or polysulfones (PSF).
Preferably, described secondary membrane system is for including the acidproof NF membrane of some special types, and the acidproof NF membrane of described special type is pipe
One in formula film or rolled film.
Preferably, in described secondary membrane system, the membrane material of extraordinary acidproof NF membrane is polysulfones (PSF), politef
(PTFE) one or in polyethylene (PE).
Preferably, during described electrolysis unit is reverse-flow type electrolysis unit, swinging electrolysis unit or tumble type electrolysis unit
One, the electric power that electrolysis unit utilizes power supply to be provided carries out electrolysis process, the heavy metal ion in concentrated solution electrolysis dress
Putting cathodic reduction becomes metallic state to realize reclaiming, and in electrolysis unit, the electrolysis waste solution of residual contains acid solution composition and can carry out acid solution
Recovery.
Preferably, the one during the electrode of described electrolysis unit is graphite electrode or lead electrode.
Heavy metal the method and apparatus of recycling in waste acid recovery described in the utility model, have following excellent
Point:
Heavy metal the method and apparatus of recycling in waste acid recovery the most described in the utility model, by membrance separation,
Chemistry neutralizes and combines with electrolysis tech, it is to avoid traditional neutralization precipitation technique generation waste residue causes the deficiency of secondary pollution,
Achieve spent acid, the minimizing of waste residue processes, and can carry out the recovery of acid solution and heavy metal, and then increases certain for enterprise
Economic benefit.
Heavy metal the method and apparatus of recycling, secondary membrane system in waste acid recovery the most described in the utility model
SO in permeate4 2-Heavy metal concentration above with bivalence is low, and during follow-up neutralisation treatment, waste residue yield reduces, and spent acid decrement
Change degree is high, can reach 30 % ~ 50 %.
Heavy metal the method and apparatus of recycling in waste acid recovery the most described in the utility model, spent acid is processed into
This is low.
Heavy metal the method and apparatus of recycling in waste acid recovery the most described in the utility model, the response rate is high,
Restored acid liquid and heavy metal all can be back in commercial production, it is achieved recycling.
It is exemplified below several example so that effect of the present utility model to be described, but the right of invention is not limited only to
This.
Embodiment 1 is certain Copper making spent acid, and wherein acid mass fraction (with sulphur acid meter) is 7.2 %, and fluorinion concentration is 153
Mg/L, chlorine ion concentration is 1080 mg/L, and copper ion concentration is 510 mg/L, and plumbum ion concentration is 60 mg/L, by pre-mistake
Filtering device and one-level membranous system, float and colloid in spent acid are removed, and in secondary membrane system permeate, acid mass fraction is
0.8 %, chlorine ion concentration is 1030 mg/L, and fluorinion concentration is 140 mg/L, and in concentrated solution, acid mass fraction is 13.8 %,
Copper ion concentration is 503 mg/L, and plumbum ion concentration is 58.87 mg/L, and concentrated solution is after electrolysis unit is electrolysed in electrolyte
Acid mass fraction is about 14 %, and the response rate of copper is 97.9 %, and the response rate of lead is 95 %.
Embodiment 2 is the spent acid of certain Electroplate Factory, and wherein acid mass fraction (with sulphur acid meter) is 6.2 %, and zinc ion concentration is
33.2 mg/L, copper ion concentration is 118 mg/L, and plumbum ion concentration is 12.5 mg/L, and nickel ion concentration is 20 mg/L, passes through
Pre-filtrating equipment and one-level membranous system, float and colloid in spent acid be removed, and in secondary membrane system permeate, acid quality is divided
Number is 0.68 %, and in concentrated solution, acid mass fraction is 11.9 %, and zinc ion concentration is 32.8 mg/L, and copper ion concentration is 116.3
Mg/L, plumbum ion concentration is 11.6 mg/L, and nickel ion concentration is 19.3 mg/L, and concentrated solution is electrolysed after electrolysis unit is electrolysed
In liquid, acid mass fraction is about 12 %, and the response rate of zinc is 96.6 %, the response rate 97 5 % of copper, and the response rate of lead is 96 %,
The response rate of nickel is 98.6 %.
The above is because preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any amendment of being made, substitute equivalents, improvement etc., should be included in this utility model
Protection domain within.
Claims (7)
1. heavy metal the device of recycling in a waste acid recovery, it is characterised in that including:
Buffer tank, for carrying out the regulation of water quality and quantity, it is ensured that subsequent treatment process stable operation to spent acid；
Pre-filtrating equipment, for removing the particulate matters such as float in spent acid waste water, colloidal substance, with described buffer tank even
Connect；
One-level membranous system, for removing the float and colloidal substance failing to retain in pre-filtration system, fills with described pre-filtering
Put connection；
Intermediate water tank, for collecting the water outlet of one-level membranous system, is connected with described one-level membranous system；
Secondary membrane system, for separating acid solution, anion and the metal ion in spent acid, is connected with described intermediate water tank；
Permeate case, for collecting the permeate containing major part monovalent ion in described secondary membrane system, with described secondary membrane system
System connects；
Concentrated solution case, is used for collecting in described secondary membrane system containing a small amount of F-And Cl-Concentrated solution, with described secondary membrane system even
Connect；
Electrolysis unit, for reclaiming the precious metal in concentrated solution, is connected with described concentrated solution case.
Heavy metal the device of recycling in waste acid recovery the most according to claim 1, it is characterised in that described one
Level membranous system includes that some ultrafiltration or micro-filtration membrane, described ultrafiltration or micro-filtration membrane are the one in tubular membrane or rolled film.
Heavy metal the device of recycling in waste acid recovery the most according to claim 1, it is characterised in that described one
The membrane component material of level membranous system is the one in politef, polyether sulfone, polyethylene or polysulfones.
Heavy metal the device of recycling in waste acid recovery the most according to claim 1, it is characterised in that described two
Level membranous system is for including the acidproof NF membrane of some special types, and the acidproof NF membrane of described special type is the one in tubular membrane or rolled film.
Heavy metal the device of recycling in waste acid recovery the most according to claim 1, it is characterised in that described two
In level membranous system, the membrane material of extraordinary acidproof NF membrane is the one in polysulfones, politef or polyethylene.
Heavy metal the device of recycling in waste acid recovery the most according to claim 1, it is characterised in that described electricity
Solving device is the one in reverse-flow type electrolysis unit, swinging electrolysis unit or tumble type electrolysis unit.
Heavy metal the device of recycling in waste acid recovery the most according to claim 1, it is characterised in that described electricity
The electrode solving device is the one in graphite electrode or lead electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119286.1U CN205741153U (en) | 2015-12-30 | 2015-12-30 | Heavy metal the device of recycling in a kind of waste acid recovery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119286.1U CN205741153U (en) | 2015-12-30 | 2015-12-30 | Heavy metal the device of recycling in a kind of waste acid recovery |
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|---|---|
| CN205741153U true CN205741153U (en) | 2016-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400959A (en) * | 2015-12-30 | 2016-03-16 | 北京清大国华环境股份有限公司 | Method and device for performing recovery and resource utilization on heavy metal in waste acid |
| CN108396155A (en) * | 2018-03-05 | 2018-08-14 | 云南驰宏锌锗股份有限公司 | A kind of process of Zinc electrolysis electrolysis waste solution purification production high quality zinc |
-
2015
- 2015-12-30 CN CN201521119286.1U patent/CN205741153U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400959A (en) * | 2015-12-30 | 2016-03-16 | 北京清大国华环境股份有限公司 | Method and device for performing recovery and resource utilization on heavy metal in waste acid |
| CN105400959B (en) * | 2015-12-30 | 2019-03-19 | 清大国华环境集团股份有限公司 | Heavy metal and the method and apparatus of resource utilization in a kind of waste acid recovery |
| CN108396155A (en) * | 2018-03-05 | 2018-08-14 | 云南驰宏锌锗股份有限公司 | A kind of process of Zinc electrolysis electrolysis waste solution purification production high quality zinc |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100085 C404, Building C, Jiahua Building, 9 Shangdi Third Street, Haidian District, Beijing Patentee after: Tsingdahua Environment Group Co., Ltd. Address before: 100085 C404, Building C, Jiahua Building, 9 Shangdi Third Street, Haidian District, Beijing Patentee before: BEIJING GO HIGHER ENVIRONMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |