CN109626643A - A kind of waste water second level copper-removing method - Google Patents
A kind of waste water second level copper-removing method Download PDFInfo
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- CN109626643A CN109626643A CN201811621485.0A CN201811621485A CN109626643A CN 109626643 A CN109626643 A CN 109626643A CN 201811621485 A CN201811621485 A CN 201811621485A CN 109626643 A CN109626643 A CN 109626643A
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of waste water second level copper-removing method, for handling level-one copper removal copper-containing wastewater not up to standard, recaptures agent M1, PAC(aluminium polychloride including S1. configuration various concentration), PAM(polyacrylamide) solution；S2. copper-containing wastewater pH not up to standard is adjusted with the sulfuric acid of 2-4% in second level conditioning tank；S3. it is added into second order reaction pond and recaptures agent M1 and PAC；S4. after recapturing agent M1 and PAC and sufficiently reacting with copper-containing wastewater, PAM is added into second order reaction pond；S5.PAM reacted with copper-containing wastewater after solution flow into sedimentation basin in staticly settle；S6. the upper layer waste water after precipitating is filtered by filter, and filtrate is discharged after detection qualification is up to standard.Beneficial effects of the present invention: by the waste water second level copper-removing method, copper-containing wastewater can be further processed and reaches environment protection emission requirement, this method is simple and practical, and copper removal effect is good, low in cost.
Description
Technical field
The invention patent relates to a kind of water treatment technology more particularly to a kind of waste water second level copper-removing methods.
Background technique
Copper is reserves heavy metal resources more abundant on a kind of earth, be widely used in modern industrial production as smelted,
In plating, pharmacy and food service industry；Copper is the indispensable element of human health simultaneously, is widely present in human muscle and bone
In, but content is little, if serious consequence will occur for excess.The discharge of copper-containing wastewater is to human health and industrial or agricultural active belt
It seriously endangers, has the characteristics that persistence, toxicity are big, seriously polluted, once into that cannot be biodegradable after environment, mostly
Number participates in food chain circulation, and finally accumulates in vivo.As the mankind produce exploitation, smelting, processing of heavy metal etc.
Movable increasingly to increase, the heavy metal wastewater thereby of generation either quantity or type all greatly increases, and causes serious environment
Pollution and the wasting of resources therefore the improvement of copper-containing wastewater are an important topics of environmental pollution improvement.
A large amount of copper-containing wastewater can be generated in the production process of electrolytic copper foil, general workshop copper-containing wastewater is adjusted
It after pH value, then precipitated, filtered, water outlet is made to reach discharge standard requirement, referred to as level-one copper removal, but answering due to copper-containing wastewater
Polygamy, some organic impurities for having complexing may increase the solubility of copper, and the waste water after leading to a copper removal is sometimes not
The discharge standard of GB8978-1996, i.e. waste water copper content≤0.5mg/L can be reached.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of waste water second level copper-removing method, has processing
It is high-efficient, produce safer advantage.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of waste water second level copper-removing method, for handling level-one copper removal copper-containing wastewater not up to standard, comprising the following steps:
S1. configure various concentration and recapture agent M1, PAC(aluminium polychloride), PAM(polyacrylamide) solution；
S2. copper-containing wastewater pH to pH not up to standard is adjusted with the sulfuric acid of 2-4% in second level conditioning tank to stablize between 6-9；
S3. it is flowed into second order reaction pond after copper-containing wastewater not up to standard is adjusted in second level conditioning tank, toward second order reaction Chi Zhongjia
Enter to recapture agent M1 and PAC, being stirred 1-1.5h using agitating device makes to mix sufficiently and reacted；
S4. after recapturing agent M1 and PAC and sufficiently reacting with copper-containing wastewater, PAM is added into second order reaction pond, is filled using stirring
Setting stirring 1-2h makes sufficiently to react；
S5.PAM reacted with copper-containing wastewater after solution flow into sedimentation basin in staticly settle；
S6. the upper layer waste water after precipitating is filtered by filter, and filtrate is discharged after detection qualification is up to standard.
Further, described to recapture the multicomponent organic acid that agent M1 is a kind of aromatic molecules containing phenyl ring, the PAC molecular formula
For (Al2(OH)nCl6-n〕m(n 3-5, m≤10), content 30%, the PAM are non-ionic, content 99%, molecular weight 500-
6000000.
Further, the M1 configuration concentration is 5%, and the PAC configuration concentration is 5%, the PAM configuration concentration is
0.1%。
Further, the agent M1 additional amount of recapturing is 10-20 times of Cu in waste water ion concentration.
Further, the PAC dosage is equal with M1.
Further, the PAM dosage is not less than 5ppm.
Beneficial effects of the present invention: by the waste water second level copper-removing method, copper-containing wastewater can be further processed
Environment protection emission requirement is reached, this method is simple and practical, and copper removal effect is good, low in cost.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of waste water second level copper-removing method process flow chart described according to embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of waste water second level copper-removing method according to an embodiment of the present invention, does not reach for handling level-one copper removal
Target copper-containing wastewater, comprising the following steps:
S1. configure various concentration and recapture agent M1, PAC(aluminium polychloride), PAM(polyacrylamide) solution；
S2. copper-containing wastewater pH to pH not up to standard is adjusted with the sulfuric acid of 2-4% in second level conditioning tank to stablize between 6-9；
S3. it is flowed into second order reaction pond after copper-containing wastewater not up to standard is adjusted in second level conditioning tank, toward second order reaction Chi Zhongjia
Enter to recapture agent M1 and PAC, being stirred 1-1.5h using agitating device makes to mix sufficiently and reacted；
S4. after recapturing agent M1 and PAC and sufficiently reacting with copper-containing wastewater, PAM is added into second order reaction pond, is filled using stirring
Setting stirring 1-2h makes sufficiently to react；
S5.PAM reacted with copper-containing wastewater after solution flow into sedimentation basin in staticly settle；
S6. the upper layer waste water after precipitating is filtered by filter, and filtrate is discharged after detection qualification is up to standard.
Described to recapture the multicomponent organic acid that agent M1 is a kind of aromatic molecules containing phenyl ring, the PAC molecular formula is (Al2(OH)nCl6-n〕m (n 3-5, m≤10), content 30%, the PAM are non-ionic, content 99%, molecular weight 500-600 ten thousand.
Embodiment 1:
Preparing experiment: the proportion of solution
Constant volume in 1000ml volumetric flask is added after taking the 30ml concentrated sulfuric acid to dilute in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gHMC-M1 to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gPAC to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 1gPAM to dissolve in beaker, shakes up.
Three 2L large beakers number 1,2,3 respectively are taken, take the identical first order reaction of 1L copper-containing wastewater (cupric not up to standard respectively
Amount >=0.5mg/L), detection content of copper ion is 2mg/L.
It is 10 with pH test paper detection pH value of solution, is slowly added to configured dilute sulfuric acid, three glasss of wastewater pHs are all transferred to 7.
1, M1, PAC is added in the copper ion that 2, No. 3 beakers press 10,15,20 times of amounts respectively, calculates the amount difference that M1 should be added
The amount that 5% M1 is added for 20mg/L, 30mg/L, 40mg/L, i.e. in every liter of water is respectively 0.4ml, 0.6ml, 0.8ml.Use liquid relief
Pipe takes 0.4ml, 0.6ml, 0.8mlM1 to be added in corresponding beaker respectively, separately taken respectively with pipette 0.4ml, 0.6ml,
0.8mlPAC is added in corresponding beaker, is stirred to react 1h.
It takes 5mlPAM to be added in corresponding beaker respectively with pipette, precipitates 2h after being slowly stirred 1h.
Take filtrate to detect content of copper ion after being filtered respectively with filter paper, testing result: No. 1 content of copper ion is 0.17mg/
L, No. 2 content of copper ion are 0.15mg/L, No. 3 content of copper ion are 0.20mg/L, meet discharge standard: content of copper ion≤
0.5mg/L。
Embodiment 2:
Preparing experiment: the proportion of solution
Constant volume in 1000ml volumetric flask is added after taking the 30ml concentrated sulfuric acid to dilute in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gHMC-M1 to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gPAC to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 1gPAM to dissolve in beaker, shakes up.
Coagulation copper-containing wastewater 1000L not up to standard is put into second level conditioning tank, detection content of copper ion is
1.5mg/L。
Measuring pH with pH test paper is 11, and dilute sulfuric acid is added and adjusts pH, and it is 8 that pH is measured after mixing up, and stirs 1.5h.
The waste water for mixing up pH is put into second order reaction pond, adds M1 and PAC by 10 times of copper ion quantities, by calculating to obtain every liter
It needs to add M1 0.3ml, PAC 0.3ml in waste water, 300mlM1 is added into second order reaction pond, 300mlPAC is added, is stirred to react
1.5h。
5000mlPAM is added into second order reaction pond, is stirred to react 1.5h.
Waste water is put into sedimentation basin and is precipitated, 2h is precipitated.
The waste water precipitated is filtered by filter, it is 0.14mg/L that filtrate, which detects content of copper ion, meets row
Put standard: content of copper ion≤0.5mg/L.
Embodiment 3:
Preparing experiment: the proportion of solution
Constant volume in 1000ml volumetric flask is added after taking the 30ml concentrated sulfuric acid to dilute in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gHMC-M1 to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gPAC to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 1gPAM to dissolve in beaker, shakes up.
Coagulation copper-containing wastewater 1000L not up to standard is put into second level conditioning tank, detection content of copper ion is
1.5mg/L。
Measuring pH with pH test paper is 11, and dilute sulfuric acid is added and adjusts pH, and it is 8 that pH is measured after mixing up, and stirs 1.5h.
The waste water for mixing up pH is put into second order reaction pond, by content of copper ion 15 extraordinarily M1, PAC, by calculating often
Rising needs to add M1 0.45ml, PAC 0.45ml in waste water, and 450mlM1 is added into second order reaction pond, and 450mlPAC, stirring is added
React 1.5h.
5000mlPAM is added into second order reaction pond, is stirred to react 1.5h.
Waste water is put into sedimentation basin and is precipitated, 2h is precipitated.
The waste water precipitated is filtered by filter, it is 0.1mg/L that filtrate, which detects content of copper ion, meets discharge
Standard: content of copper ion≤0.5mg/L.
Embodiment 4:
Preparing experiment: the proportion of solution
Constant volume in 1000ml volumetric flask is added after taking the 30ml concentrated sulfuric acid to dilute in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gHMC-M1 to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gPAC to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 1gPAM to dissolve in beaker, shakes up.
Coagulation copper-containing wastewater 2000L not up to standard is put into second level conditioning tank, detection content of copper ion is 1mg/
L。
Measuring pH with pH test paper is 11, and dilute sulfuric acid is added and adjusts pH, and it is 6 that pH is measured after mixing up.
The waste water for mixing up pH is put into second order reaction pond, M1, PAC is added by the amount of 10 times of copper ions, by calculating
It needs to add M1 0.2ml, PAC 0.2ml in every liter of waste water, 400mlM1 is added into second order reaction pond, 400mlPAC, stirring is added
React 1.5h.
10000mlPAM is added into second order reaction pond, is stirred to react 1.5h.
Waste water is put into sedimentation basin and is precipitated, 2h is precipitated.
The waste water precipitated is filtered by filter, it is 0.1mg/L that filtrate, which detects content of copper ion, meets discharge
Standard: content of copper ion≤0.5mg/L.
Embodiment 5:
Preparing experiment: the proportion of solution
Constant volume in 1000ml volumetric flask is added after taking the 30ml concentrated sulfuric acid to dilute in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gHMC-M1 to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 50gPAC to dissolve in beaker, shakes up.
Constant volume in 1000ml volumetric flask is added after taking 1gPAM to dissolve in beaker, shakes up.
Coagulation copper-containing wastewater 2000L not up to standard is put into second level conditioning tank, detection content of copper ion is 1mg/
L。
Measuring pH with pH test paper is 11, and dilute sulfuric acid is added and adjusts pH, and it is 6 that pH is measured after mixing up, and stirs 1.5h.
The waste water for mixing up pH is put into second order reaction pond, by content of copper ion 15 extraordinarily M1, PAC, by calculating often
Rising needs to add M1 0.3ml, PAC 0.3ml in waste water, and 600mlM1 is added into second order reaction pond, and 600mlPAC is added, and stirring is anti-
Answer 1.5h.
10000mlPAM is added into second order reaction pond, is stirred to react 1.5h.
Waste water is put into sedimentation basin and is precipitated, 2h is precipitated.
The waste water precipitated is filtered by filter, it is 0.08mg/L that filtrate, which detects content of copper ion, meets row
Put standard: content of copper ion≤0.5mg/L.
Embodiment 1-5 data summarization is as shown in the table:
As seen from the above table, the copper content in waste water effectively can be reduced to 0.5mg/l hereinafter, reaching environmentally friendly row by the present invention
The requirement put.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of waste water second level copper-removing method, for handling level-one copper removal copper-containing wastewater not up to standard, which is characterized in that including with
Lower step: S1. configuration various concentration recaptures agent M1, PAC(aluminium polychloride), PAM(polyacrylamide) solution；S2. exist
Copper-containing wastewater pH to pH not up to standard is adjusted with the sulfuric acid of 2-4% in second level conditioning tank to stablize between 6-9；S3. not up to standard
Copper-containing wastewater adjusted in second level conditioning tank after flow into second order reaction pond in, into second order reaction pond addition recapture agent M1 and
PAC, being stirred 1-1.5h using agitating device makes to mix sufficiently and reacted；S4. agent M1 and PAC to be recaptured with contain
After copper waste water sufficiently reacts, PAM is added into second order reaction pond, makes sufficiently to react using agitating device stirring 1-2h； S5.PAM
Solution after reacting with copper-containing wastewater, which flows into sedimentation basin, to be staticly settled；S6. the upper layer waste water after precipitating is carried out by filter
Filtering, filtrate are discharged after detection qualification is up to standard.
2. a kind of waste water second level copper-removing method according to claim 1, which is characterized in that the agent M1 that recaptures is that one kind contains
The multicomponent organic acid of phenyl ring aromatic molecules, the PAC molecular formula are (Al2(OH)nCl6-n〕m(n 3-5, m≤10), content
30%, the PAM are non-ionic, content 99%, molecular weight 500-600 ten thousand.
3. a kind of waste water second level copper-removing method according to claim 1 or 2, which is characterized in that the M1 configuration concentration is
5%, the PAC configuration concentration is 5%, the PAM configuration concentration is 0.1%.
4. a kind of waste water second level copper-removing method according to claim 3, which is characterized in that the agent M1 additional amount of recapturing is
10-20 times of Cu in waste water ion concentration.
5. a kind of waste water second level copper-removing method according to claim 3, which is characterized in that the PAC dosage is equal with M1.
6. a kind of waste water second level copper-removing method according to claim 5, which is characterized in that the PAM dosage is not less than
5ppm。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110194514A (en) * | 2019-06-05 | 2019-09-03 | 九江德福科技股份有限公司 | A kind of ashing liquid wastewater treatment method |
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