CN109574322A - A kind of waste water treatment process - Google Patents
A kind of waste water treatment process Download PDFInfo
- Publication number
- CN109574322A CN109574322A CN201910044594.9A CN201910044594A CN109574322A CN 109574322 A CN109574322 A CN 109574322A CN 201910044594 A CN201910044594 A CN 201910044594A CN 109574322 A CN109574322 A CN 109574322A
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- CN
- China
- Prior art keywords
- waste water
- treatment process
- water treatment
- pond
- filtering ponds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
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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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
Abstract
The present invention provides a kind of waste water treatment process, belongs to technical field of waste water processing.A kind of waste water treatment process successively adjusts sour neutralization pond by sedimentation basin, the first filtering ponds, first, the second filtering ponds, coagulative precipitation tank, third filtering ponds, the sour neutralization pond of the second tune, adsorption tank, pH is adjusted to discharge pond.The waste water treatment process simply, in treatment process does not use sulfide, reduces the pollution to environment, good waste water treatment effect.
Description
Technical field
The invention belongs to technical field of waste water processing, specifically, being related to a kind of waste water treatment process.
Background technique
Industrial wastewater includes production waste water, production waste and cooling water, refer to the waste water generated in industrial processes and
Waste liquid, wherein containing the pollution generated in industrial production materials, intermediate product, byproduct and the production process outflowed with water
Object, since, often containing there are many noxious material, pollution environment has very big harm to human health, needs to take corresponding in industrial wastewater
Control techniques be disposed after, can just discharge.
Acid compared with strong, heavy metal ion is more in industrial wastewater, especially lead, zinc, cadmium plasma severely exceed.Existing skill
In art, commonly used treatment process is to be handled using neutralisation, and waste residue usually contains a large amount of element sulphurs after processing, simultaneously
The less effective of wastewater treatment.
Therefore, inventing a kind of waste water treatment process for being able to solve the above problem becomes current urgent problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of waste water treatment process, vulcanization is not used in simple process, treatment process
Object reduces the pollution to environment, good waste water treatment effect.
In order to achieve the above object, the solution that the present invention uses is:
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond.
Further, in preferred embodiments of the present invention, pH is 10-13 in the sour neutralization pond of the first tune.
Further, in preferred embodiments of the present invention, pH is 8-10 in coagulative precipitation tank.
Further, in preferred embodiments of the present invention, pH is 10-13 in the sour neutralization pond of the second tune.
Further, in preferred embodiments of the present invention, adjusting pH in pH discharge pond is 6-9.
Further, in preferred embodiments of the present invention, first adjusts sour neutralization pond, second adjust sour neutralization pond, adjust pH discharge
The adjusting that caustic soda carries out pH is added in pond.
Further, coagulant is added in preferred embodiments of the present invention, in coagulative precipitation tank and carries out coagulating sedimentation.
Further, in preferred embodiments of the present invention, coagulant includes magnesium carbonate or ferric trichloride.
Further, in preferred embodiments of the present invention, the adsorbent in adsorption tank is absorption resin.
The beneficial effect of waste water treatment process provided by the invention is first passed around in natural sedimentation and filtering removal waste water
Slag and precipitating, avoid influencing subsequent neutralization efficiency, then adjust sour neutralization pond, coagulative precipitation tank, second to adjust by first
Sour neutralization pond and adsorption tank carry out 4 purified treatments, and the effect of wastewater treatment is greatly improved under the conditions of suitable pH,
During entire waste water treatment process, be added without sulfide and precipitated, reduce the pollution to environment.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
A kind of waste water treatment process of the embodiment of the present invention is specifically described below.
A kind of waste water treatment process provided in an embodiment of the present invention successively adjusts acid by sedimentation basin, the first filtering ponds, first
Neutralization pond, the second filtering ponds, coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond.
Wherein, the purpose for first passing through sedimentation basin is to avoid slag etc. from entering for the slag etc. of band in natural sedimentation waste water
The efficiency neutralized is influenced in neutralization pond, is then passed through the first filtering ponds, is filtered out the slag precipitated in sedimentation basin.
It is adjusted first and carries out adjusting acid and neutralization precipitation in sour neutralization pond, pH is 10-13 in the sour neutralization pond of the first tune, it is therefore an objective to
In order to precipitate some metals that tapping etc. is easy to generate precipitating in conjunction with hydroxyl, in the process, caustic soda is added and carries out
Neutralization precipitation, wherein caustic soda is a kind of highly basic with strong corrosive, generally sheet or block-shape morphology, soluble easily in water, valence
The cheap source of lattice is wide.
By the precipitating in sour neutralization pond with after will be adjusted to filter removal first, due to zinc, cadmium etc. in the second filtering ponds
Metal ion is difficult to generate precipitating in conjunction with hydroxyl, therefore, can not remove the gold such as zinc, cadmium after first adjusts sour neutralization pond
Belong to ion, therefore, the waste water after the second filtering ponds have passed through coagulative precipitation tank and carry out coagulating sedimentation.
Wherein, pH is that coagulant is added into waste water at the pH by 8-10 in coagulative precipitation tank, in the weak of pH=8-10
Under alkaline condition, hydroxide floccule body is formed, has flocculation to metal ions such as zinc, cadmiums, and is co-precipitated and is precipitated.The present invention
In embodiment, coagulant includes magnesium carbonate or ferric trichloride, and the coagulant of sulfide is not added, and avoids occurring in slag a large amount of
Sulfide influences environment.
Waste water is filtered after coagulating sedimentation by third filtering ponds, because joined excess carbon in coagulating sedimentation
Sour magnesium or ferric trichloride are as coagulant, it is therefore desirable to which neutralization precipitation falls magnesium or iron ion again, therefore, filters by third
The filtered waste water in pond is adjusting sour neutralization pond to carry out neutralization reaction by second, and pH is 10-13, purpose in the sour neutralization pond of the second tune
It is in the process, causticity to be added to be settled out some metals that magnesium or iron etc. are easy to generate precipitating in conjunction with hydroxyl
Sodium carries out neutralization precipitation.
Waste water after second adjusts sour neutralization pond is carrying out adsorption cleaning by adsorption tank, further increases processing effect
Fruit, wherein the adsorbent in adsorption tank is absorption resin, and it is useless that absorption resin refers to that a kind of high molecular polymer can be used for removing
Organic matter in water, Sugarcane juice decolorization, separation and purification of natural products and biochemistry product etc..
Pond finally is discharged through toning pH, waste water is made to reach the standard of discharge, adjusting pH in pH discharge pond is 6-9, adjusts pH discharge
The adjusting that caustic soda carries out pH is added in pond
Embodiment 1
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda is added to be adjusted, pH 10, pH is 8 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, second adjusts in acid
It is adjusted with caustic soda is added in pond, pH 10, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 6.
Embodiment 2
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda is added to be adjusted, pH 11, pH is 9 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, second adjusts in acid
It is adjusted with caustic soda is added in pond, pH 11, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 7.
Embodiment 3
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda is added to be adjusted, pH 12, pH is 10 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, second adjusts acid
Caustic soda is added in neutralization pond to be adjusted, pH 12, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 8.
Embodiment 4
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda is added to be adjusted, pH 13, pH is 11 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, second adjusts acid
Caustic soda is added in neutralization pond to be adjusted, pH 11, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 9.
Embodiment 5
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda is added to be adjusted, pH 11.5, pH is 9.5 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, second adjusts
Caustic soda is added in sour neutralization pond to be adjusted, pH 9,5, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 7.5.
Embodiment 6
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda being added to be adjusted, pH 12.5, pH is 10.5 in coagulative precipitation tank, addition magnesium carbonate progress coagulating sedimentation, second
Caustic soda is added in the sour neutralization pond of tune to be adjusted, pH 10.5, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 8.
Comparative example 1
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjust be added in sour neutralization pond caustic soda into
Row is adjusted, pH 10, and second adjusts addition caustic soda in sour neutralization pond to be adjusted, and pH 10 is adjusted in pH discharge pond and causticity is added
Sodium is adjusted, pH 6.
Comparative example 2
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, adjusts pH to discharge pond at third filtering ponds, wherein first adjusts addition caustic soda in sour neutralization pond to be adjusted, and pH is
10, pH is 8 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, and second adjusts and caustic soda is added in sour neutralization pond is adjusted
Section, pH 10 adjust addition caustic soda in pH discharge pond to be adjusted, pH 6.
Comparative example 3
A kind of waste water treatment process, successively by sedimentation basin, the first filtering ponds, first adjust sour neutralization pond, the second filtering ponds,
Coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond, wherein first adjusts in sour neutralization pond
Caustic soda is added to be adjusted, pH 9, pH is 6 in coagulative precipitation tank, and magnesium carbonate is added and carries out coagulating sedimentation, second adjusts in acid
It is adjusted with caustic soda is added in pond, pH 9, adjusts addition caustic soda in pH discharge pond to be adjusted, pH 6.
Experimental example
By embodiment 1-6 and comparative example 1-3 through treatment process treated waste water, detected respectively, testing result is such as
Shown in table 1.
Table 1
As shown in Table 1,1-6 of the embodiment of the present invention treated waste water, zinc, cadmium, suspended matter concentration significantly reduce, comparison
The step of example 1 lacks coagulating sedimentation, zinc, cadmium concentration do not change significantly, comparative example 2 lacked second tune acid neutralize and absorption
The step of, suspension content is higher, and not within the protection scope of the present invention, it is useless that treated for the pH value in each stage of comparative example 3
Water, zinc, cadmium, the concentration variation of suspended matter are smaller.
In conclusion the waste water treatment process that the present invention improves, first passes around in natural sedimentation and filtering removal waste water
Slag and precipitating avoid influencing subsequent neutralization efficiency, then adjust sour neutralization pond, coagulative precipitation tank, second to adjust acid by first
Neutralization pond and adsorption tank carry out 4 purified treatments, the effect of wastewater treatment are greatly improved, wherein in entire wastewater treatment work
It during skill, is added without sulfide and is precipitated, reduce the pollution to environment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of waste water treatment process, it is characterised in that: successively adjust sour neutralization pond, the by sedimentation basin, the first filtering ponds, first
Two filtering ponds, coagulative precipitation tank, third filtering ponds, second adjust sour neutralization pond, adsorption tank, pH are adjusted to discharge pond.
2. waste water treatment process according to claim 1, it is characterised in that: pH is 10- in the sour neutralization pond of the first tune
13。
3. waste water treatment process according to claim 1, it is characterised in that: pH is 8-10 in the coagulative precipitation tank.
4. waste water treatment process according to claim 1, it is characterised in that: pH is 10- in the sour neutralization pond of the second tune
13。
5. waste water treatment process according to claim 1, it is characterised in that: pH is 6-9 in tune pH discharge pond.
6. waste water treatment process according to claim 1, it is characterised in that: described first adjusts sour neutralization pond, described second
Adjust sour neutralization pond, described adjust in pH discharge pond that the adjusting that caustic soda carries out pH is added.
7. waste water treatment process according to claim 1, it is characterised in that: coagulant is added in coagulative precipitation tank and is mixed
Retrogradation is formed sediment.
8. waste water treatment process according to claim 7, it is characterised in that: the coagulant includes magnesium carbonate or tri-chlorination
Iron.
9. waste water treatment process according to claim 1, it is characterised in that: the adsorbent in the adsorption tank is absorption tree
Rouge.
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| CN201910044594.9A CN109574322A (en) | 2019-01-17 | 2019-01-17 | A kind of waste water treatment process |
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| CN201910044594.9A CN109574322A (en) | 2019-01-17 | 2019-01-17 | A kind of waste water treatment process |
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| CN109574322A true CN109574322A (en) | 2019-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321092A (en) * | 2020-11-10 | 2021-02-05 | 菏泽华意化工有限公司 | Processing system of waste water containing cyanuric acid |
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| CN106673255A (en) * | 2016-12-22 | 2017-05-17 | 北京恩菲环保技术有限公司 | Wastewater treatment method and wastewater treatment device |
| CN109019972A (en) * | 2018-08-24 | 2018-12-18 | 江苏开放大学（江苏城市职业学院） | A kind of bath sewage processing unit and method |
| CN109264939A (en) * | 2018-12-06 | 2019-01-25 | 湖南大辰环保科技有限公司 | The processing method and system of Lithium Battery Industry production waste water |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826684A (en) * | 2012-09-14 | 2012-12-19 | 上海问鼎水处理工程有限公司 | Method for removing lead ions in sewage |
| CN106673255A (en) * | 2016-12-22 | 2017-05-17 | 北京恩菲环保技术有限公司 | Wastewater treatment method and wastewater treatment device |
| CN106587438A (en) * | 2016-12-28 | 2017-04-26 | 安徽华塑股份有限公司 | Treatment method for waste water containing mercury in PVC production through calcium carbide process |
| CN109019972A (en) * | 2018-08-24 | 2018-12-18 | 江苏开放大学（江苏城市职业学院） | A kind of bath sewage processing unit and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112321092A (en) * | 2020-11-10 | 2021-02-05 | 菏泽华意化工有限公司 | Processing system of waste water containing cyanuric acid |
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Application publication date: 20190405 |