CN107619131A - A kind of method of discarded fruit processing lead waste water - Google Patents
A kind of method of discarded fruit processing lead waste water Download PDFInfo
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- CN107619131A CN107619131A CN201711086745.4A CN201711086745A CN107619131A CN 107619131 A CN107619131 A CN 107619131A CN 201711086745 A CN201711086745 A CN 201711086745A CN 107619131 A CN107619131 A CN 107619131A
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- lead
- waste water
- lemon
- glar
- discarded
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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
The present invention relates to a kind of method of discarded fruit processing lead waste water, comprise the following steps：Discarded lemon is crushed, squeezed, filtered, obtains lemon fluid；Lead waste water is put into stirring pool；Lemon fluid is added into the stirring pool, and is stirred with electric blender；Obtained waste water is passed through in sedimentation basin and precipitated, precipitation a period of time, then filters, obtains glar；The glar is dried；Dried glar is calcined；Solid after roasting is put into reducing atmosphere stove and heated, heating a period of time, obtains metallic lead.Present invention process is simple, and reaction condition easily reaches, and reaction is also easy to control, and processing wastewater flow rate is big.
Description
Technical field
The present invention relates to the field of Environment Protection of wastewater treatment, specially a kind of method of discarded fruit processing lead waste water.
Background technology
As industry and other industry develop rapidly, a large amount of uses of lead, lead contamination is from occupational environment Xiang Shui, big
Gas, food, medicine and our everyday environments extend.Lead is that distribution is wide, has accumulative environmental contaminants.The property of lead
Stable, highly unwanted to human body heavy metal element, while also seriously endanger the health of children.
Lead and its compound can enter human body through alimentary canal, respiratory tract, and alkyl lead can also be absorbed by skin.Lead is in vivo
Long half time produces harm to many individual tracts and physiological action.Nervous system be lead poisoning effect target tissue, lead
With Behavioral teratogenicity.Lead in invasion body damages cerebellum and brain cortex cell, interference metabolism with blood flow such as brain tissue
Activity, cause anaemia and encephaledema.Anaemia is one of early symptom of lead poisoning, and lead can suppress many in ferroheme building-up process
The activity of enzyme；Lead poisoning, which can cause vasopasm, eilema, retinal arterioles spasm and hypertension, to be all arteriolar spasm
Cause, when often result in tiny artery sclerosis.It is small that the renal damage of lead often shows as the lesion kidney such as interstitial nephritis or atrophic ephritis
Pipe reabsorption function reduction is the symptom of early stage, and Effects of Lead Exposure can also affect on reproductive function, contacts woman worker's infertility, the miscarriage of lead
And stillborn foetus incidence increases, lead can be by placental metastasis to fetus with.Oral lead poisoning person's liver be main damaged organ it
One, hepatomegaly can be caused, yellow subcutaneous ulcer, or even cirrhosis or hepatonecrosis is presented.Hepatic lesion be also likely to be in liver arteriolar spasm cause
Caused by ischaemic.Lead causes arteriolar spasm to be due to porphyrin metabolism obstacle, suppress the enzyme of base containing coloured glaze, disturbs vegetative nerve.Lead
Main aspect to children's harm is the influence to children's brain growth.Research both domestic and external is all it has been found that dirty in lead
The more serious place of dye, the incidence of disease of children mental retardation are higher；The Pb-B of children often rises 100 μ g/L, its IQ
(IQ) 6~8 points are declined.Research it has also been found that, children blood lead it is too high also and children's hyperkinetic syndrome, absent minded, difficulty of learning,
Criminal offence after aggression and adult has substantial connection.The Physique growth of children is also influenceed by lead.According to the country
Outer research report, the children of high blood lead, its possibility increase of short and small stature.The stature of high blood lead children is often below normal
Children.In addition, serious children's lead poisoning also results in anaemia etc..
Lead in waste water is essentially from the exploitation of lead ore, smelting and industrial discharge, the tail gas of motor vehicle emission
The main source of Air Lead Pollution, it can also cause water pollution.When lead concentration is very high in water, the self-cleaning that can suppress water body is made
With.Lead contamination has caused the great attention of people to the significant damage that human body and environment are brought.Therefore, waste water deleading has been
Faced as every field urgent to topic.
The content of the invention
The shortcomings that for above-mentioned prior art, the present invention provide a kind of lead containing wastewater treatment method green, cost is low.
The present invention solves above-mentioned technical problem and uses following technical scheme：A kind of side of discarded fruit processing lead waste water
Method, comprise the following steps：
(1) discarded lemon crushed, squeezed, filtered, obtain lemon fluid；
(2) lead waste water is put into stirring pool；
(3) lemon fluid is added into the stirring pool, and is stirred with electric blender；
(4) waste water that step (3) obtains is passed through in sedimentation basin and precipitated, precipitation a period of time, then filtered, obtain
Glar；
(5) glar is dried；
(6) step (5) dried glar is calcined；
(7) solid after step (6) is calcined, which is put into reducing atmosphere stove, to be heated, and heating a period of time, is obtained
Metallic lead.
Preferably, also carry out centrifugal treating after lemon squeezing is discarded described in step (1).
Preferably, the lead content of waste water described in step (2) is 300~400mg/L.
Preferably, the sedimentation time is 12~24 hours in step (4).
As further preferred, step is filtered into press filtration described in (4).
Preferably, it is 60~70 DEG C to be dried described in step (5) as vacuum drying, drying temperature.
Preferably, being roasted to aerobic roasting described in step (6), sintering temperature is 300~400 DEG C.
Preferably, reducing atmosphere described in step (7) is carbon monoxide or hydrogen.
Further, heating-up temperature described in step (7) is 600~700 DEG C.
Preferably, the heat time is 6~8 hours in step (7).
The present invention has the following advantages that compared with prior art：Present invention process is simple, and reaction condition easily reaches, reaction
Also easy to control, processing wastewater flow rate is big；The present invention handles pollutant using discarded fruit lemon juicing, its effect is good, source is wide,
Cost is low, and will not bring new pollutant when handling waste water；Discarded lemon uses centrifugal treating when squeezing the juice, effect compared with
It is good.Glar can fall inflammable impurity treatment in aerobic roasting, propose lead；The Reducing Lead in reducing atmosphere stove, efficiency compared with
Height, the purity of final metallic lead are higher；Present invention process flow is green, and energy consumption is small, it is easy to accomplish industrial-scale production.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.It should be appreciated that specific embodiment described herein is only explaining this hair
It is bright, it is not intended to limit the present invention.
Embodiment 1：
Discarded lemon is first crushed, then squeezed, centrifugal treating is also carried out after squeezing, is refiltered, obtains lemon
Lemon liquid.The lead waste water that lead content is 300mg/L is put into stirring pool, lemon fluid, and electricity consumption are added into the stirring pool
Dynamic mixer is stirred；Then waste water is passed through in sedimentation basin and precipitated, precipitated 12 hours, then by way of press filtration
Filtering, obtains glar, the glar is dried in vacuo, and drying temperature is 60 DEG C.Dried glar is carried out
Aerobic roasting, sintering temperature are 300 DEG C, and then the solid after roasting is put into carbon monoxide atmosphere stove again and heated, is added
Hot temperature is 600 DEG C, heats 6 hours, then obtains metallic lead.
Embodiment 2：
Discarded lemon is first crushed, then squeezed, centrifugal treating is also carried out after squeezing, is refiltered, obtains lemon
Lemon liquid.The lead waste water that lead content is 350mg/L is put into stirring pool, lemon fluid, and electricity consumption are added into the stirring pool
Dynamic mixer is stirred；Then waste water is passed through in sedimentation basin and precipitated, precipitated 20 hours, then by way of press filtration
Filtering, obtains glar, the glar is dried in vacuo, and drying temperature is 65 DEG C.Dried glar is carried out
Aerobic roasting, sintering temperature are 350 DEG C, and then the solid after roasting is put into hydrogen atmosphere stove again and heated, heating temperature
Spend for 650 DEG C, heat 7 hours, then obtain metallic lead.
Embodiment 3：
Discarded lemon is first crushed, then squeezed, centrifugal treating is also carried out after squeezing, is refiltered, obtains lemon
Lemon liquid.The lead waste water that lead content is 400mg/L is put into stirring pool, lemon fluid, and electricity consumption are added into the stirring pool
Dynamic mixer is stirred；Then waste water is passed through in sedimentation basin and precipitated, precipitated 24 hours, then by way of press filtration
Filtering, obtains glar, the glar is dried in vacuo, and drying temperature is 70 DEG C.Dried glar is carried out
Aerobic roasting, sintering temperature are 400 DEG C, and then the solid after roasting is put into hydrogen atmosphere stove again and heated, heating temperature
Spend for 700 DEG C, heat 8 hours, then obtain metallic lead.
Embodiment 4：
Discarded lemon is first crushed, then squeezed, centrifugal treating is also carried out after squeezing, is refiltered, obtains lemon
Lemon liquid.The lead waste water that lead content is 330mg/L is put into stirring pool, lemon fluid, and electricity consumption are added into the stirring pool
Dynamic mixer is stirred；Then waste water is passed through in sedimentation basin and precipitated, precipitated 16 hours, then by way of press filtration
Filtering, obtains glar, the glar is dried in vacuo, and drying temperature is 63 DEG C.Dried glar is carried out
Aerobic roasting, sintering temperature are 380 DEG C, and then the solid after roasting is put into carbon monoxide atmosphere stove again and heated, is added
Hot temperature is 700 DEG C, heats 7 hours, then obtains metallic lead.
Embodiment 5：
Discarded lemon is first crushed, then squeezed, centrifugal treating is also carried out after squeezing, is refiltered, obtains lemon
Lemon liquid.The lead waste water that lead content is 360mg/L is put into stirring pool, lemon fluid, and electricity consumption are added into the stirring pool
Dynamic mixer is stirred；Then waste water is passed through in sedimentation basin and precipitated, precipitated 18 hours, then by way of press filtration
Filtering, obtains glar, the glar is dried in vacuo, and drying temperature is 68 DEG C.Dried glar is carried out
Aerobic roasting, sintering temperature are 390 DEG C, and then the solid after roasting is put into hydrogen atmosphere stove again and heated, heating temperature
Spend for 670 DEG C, heat 8 hours, then obtain metallic lead.
In the present invention, it is low to discard lemon cost, it is preferable to the treatment effect of Pb In Exhausted Water, secondary pollution will not be brought.
Present invention process is simple, and reaction condition easily reaches, and reaction is also easy to control, and processing wastewater flow rate is big.
The general principle and principal character and advantages of the present invention of the present invention, the technology of the industry has been shown and described above
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of method of discarded fruit processing lead waste water, comprises the following steps：
(1) discarded lemon crushed, squeezed, filtered, obtain lemon fluid；
(2) lead waste water is put into stirring pool；
(3) lemon fluid is added into the stirring pool, and is stirred with electric blender；
(4) waste water that step (3) obtains is passed through in sedimentation basin and precipitated, precipitation a period of time, then filtered, precipitated
Mud；
(5) glar is dried；
(6) step (5) dried glar is calcined；
(7) solid after step (6) is calcined, which is put into reducing atmosphere stove, to be heated, and heating a period of time, obtains metal
Lead.
Also carry out centrifugal treating after 2. lemon squeezing according to the method for claim 1, is discarded described in step (1).
3. according to the method for claim 1, the lead content of waste water described in step (2) is 300~400mg/L.
4. according to the method for claim 1, the sedimentation time is 12~24 hours in step (4).
5. according to the method for claim 4, step is filtered into press filtration described in (4).
6. it is 60~70 DEG C according to the method for claim 1, to be dried described in step (5) as vacuum drying, drying temperature.
7. according to the method for claim 1, being roasted to aerobic roasting described in step (6), sintering temperature is 300~400
℃。
8. according to the method for claim 1, reducing atmosphere described in step (7) is carbon monoxide or hydrogen.
9. the method according to claim 1 or 8, heating-up temperature described in step (7) is 600~700 DEG C.
10. according to the method for claim 1, the heat time is 6~8 hours in step (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086745.4A CN107619131A (en) | 2017-11-07 | 2017-11-07 | A kind of method of discarded fruit processing lead waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086745.4A CN107619131A (en) | 2017-11-07 | 2017-11-07 | A kind of method of discarded fruit processing lead waste water |
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| Publication Number | Publication Date |
|---|---|
| CN107619131A true CN107619131A (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711086745.4A Withdrawn CN107619131A (en) | 2017-11-07 | 2017-11-07 | A kind of method of discarded fruit processing lead waste water |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417783A (en) * | 2015-12-09 | 2016-03-23 | 永兴县灿阳贵金属有限责任公司 | Method for recycling lead in lead-containing waste water |
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2017
- 2017-11-07 CN CN201711086745.4A patent/CN107619131A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417783A (en) * | 2015-12-09 | 2016-03-23 | 永兴县灿阳贵金属有限责任公司 | Method for recycling lead in lead-containing waste water |
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Application publication date: 20180123 |