CN110451676A - A kind of processing method of acidic industrial effluent - Google Patents
A kind of processing method of acidic industrial effluent Download PDFInfo
- Publication number
- CN110451676A CN110451676A CN201810428215.1A CN201810428215A CN110451676A CN 110451676 A CN110451676 A CN 110451676A CN 201810428215 A CN201810428215 A CN 201810428215A CN 110451676 A CN110451676 A CN 110451676A
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- CN
- China
- Prior art keywords
- acidic
- industrial effluent
- processing method
- industrial wastewater
- industrial
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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
-
- 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
- C02F1/52—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
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
A kind of processing method of acidic industrial effluent, comprising the following steps: (1) make the basic agent for neutralizing acidic industrial effluent；(2) basic agent is added into restored acid industrial wastewater, and the pH value of industrial wastewater is adjusted to neutrality；(3) heavy metal in industrial wastewater is removed；(4) filters pressing is carried out to industrial wastewater, solid and liquid is separated；(5) fixation is recycled, liquid is discharged.The present invention has practical, treatment process is succinct, high-efficient, and can effectively reduce the processing cost of acidic industrial effluent, enabling treated, acidic industrial effluent reaches the emission request of national regulation, and it is not up to standard and cause environmental pollution to avoid acidic industrial effluent discharge；Processing cost is effectively reduced, the cost pressure of processing is reduced；It is at low cost using quick lime as basic matterial, the advantages that raw material sources are extensive, convenient in industry promoting the use of.
Description
Technical field
The present invention relates to industrial waste water treatments, and in particular to a kind of processing method of acidic industrial effluent.
Background technique
With industrialization development, promote the development of industrial manufacturing, leads to metallurgy, plating, petrochemical industry, intermetallic composite coating
The industrial wastewater that class enterprise generates in process of production is also gradually increasing.And metallurgy, plating, petrochemical industry, intermetallic composite coating class
After enterprise's production, the industrial wastewater of generation is usually acidic industrial effluent or alkaline industrial waste water, wherein acidic industrial effluent
Output is larger.Currently, in the industrial wastewater that existing metallurgy, plating, petrochemical industry, intermetallic composite coating class enterprise generate, there are also big
The heavy metal and harmful substance of amount, if unprocessed direct emission, substance that one side Industry Waste water part can be extracted
Direct emission reduces recycling rate, so that utility has not been able to effectively recycle；On the other hand, soil is caused
Physicochemical property destruction, lead to soil acidification or alkalization, destroy ecological environment, do not meet national environmental protection requirement；Cause
This, national requirements industrial wastewater could discharge after needing first to handle.For the acidic industrial effluent being stepped up, existing industry
Waste-water treatment industry generally use launch piece alkali method handled, using acid-base neutralization principle to acidic industrial effluent into
The processing of row acid-base neutralization discharges the pH value adjustment of industrial wastewater to neutrality again, but piece alkali is costly, handles a large amount of waste water mistakes
It will increase entreprise cost in journey, be unfavorable for Enterprise's Sustainable Development.Therefore, the processing cost for how reducing acidic industrial effluent, mentions
High economic benefit, such that treated acidic industrial effluent qualified discharge meet national requirements, it is urgently to be resolved to become enterprise
The problem of.
Summary of the invention
In view of this, the technical problem to be solved by the present invention is to a kind of at low cost, practical acidic industrial effluent
Processing method, thus the effective solution processing problem of acidic industrial effluent, such that treated acidic industrial effluent
Qualified discharge avoids the problem that acid waste water direct emission causes environmental pollution.
In order to solve the above-mentioned technical problem, the present invention is realized using following scheme: a kind of processing side of acidic industrial effluent
Method, comprising the following steps:
(1) basic agent for neutralizing acidic industrial effluent is made；
(2) basic agent is added into restored acid industrial wastewater, and the pH value of industrial wastewater is adjusted to neutrality；
(3) heavy metal in industrial wastewater is removed；
(4) filters pressing is carried out to industrial wastewater, solid and liquid is separated；
(5) fixation is recycled, liquid is discharged.
Preferably, specific step is as follows for step (1):
(11) selected to the progress of alkaline drug raw material, choose the lesser selected alkaline drug raw material of particle；
(12) grinding to selected alkaline drug raw material is ground into nanoscale alkaline drug raw material；
(13) medicament is made in nanoscale alkaline drug raw material and be filtered, basic agent is made.
Preferably, step (12) is ground using nanoscale grinder.
Preferably, the alkaline drug raw material is quick lime.
Preferably, step (3) is using the heavy metal in heavy metal settling agent removal industrial wastewater.
Preferably, the heavy metal settling agent includes polyacrylamide.
Preferably, the polyacrylamide mass ratio is 1%~8%.
Preferably, step (4) carries out filters pressing to industrial wastewater using filter press.
Compared with prior art, the present invention has practical, and treatment process is succinct, high-efficient, and can effectively drop
The low processing cost of acidic industrial effluent, the discharge that such that treated acidic industrial effluent reaches national regulation are wanted
It asks, avoids acidic industrial effluent and discharge discharge of the water not up to standard due to pollutants such as heavy metals, the pollution of one side heavy metal
Object penetrates into soil or water quality, causes water and soil pollution, to pollute environment, causes serious injury to environment, do not meet country
Environmental requirement, on the other hand, the pollutant of the heavy metal in industrial wastewater are inhaled into human body after penetrating into soil or water quality, threaten people
The health of class；Meanwhile the processing cost of acidic industrial effluent can reduce 600-1000 yuan/ton, effectively reduce place
Cost is managed, the cost pressure of processing is reduced, in addition, basic matterial is used as using quick lime, it is at low cost, raw material sources are extensive etc.
Advantage, convenient in industry promoting the use of.
Specific embodiment
It is right combined with specific embodiments below in order to allow those skilled in the art to more fully understand technical solution of the present invention
The present invention is further elaborated.
A kind of processing method of acidic industrial effluent, comprising the following steps:
(1) basic agent for neutralizing acidic industrial effluent is made；The specific steps of which are as follows:
When making basic agent, using quick lime as alkaline drug raw material.To quick lime carry out it is selected, choose particle compared with
Small selected quick lime.Then selected quick lime is ground, is ground into nanoscale quick lime.Wherein, quick lime
The equipment of grinding uses nanoscale grinder, to effectively improve the quality of quick lime, promotes the quality that medicament is made.It will grind
It wears into nanoscale quick lime addition production slot and is mixed with water, while being constantly stirred, so that nanoscale quick lime
It is completely soluble, the production time is shortened, the production efficiency of quick lime medicament is improved.Nanoscale quick lime is mixed with water
It closes, quick lime medicament is made, then be filtered, is eventually fabricated the alkaline quick lime medicament for neutralizing acidic industrial effluent.Its
In, using quick lime as alkaline drug raw material, the piece alkali raw material of alternative materials can effectively reduce production cost, from
And the processing cost of acidic industrial effluent is reduced, in addition, the advantages such as price is low are convenient for since quick lime has raw material sources wide
It in industry promotes the use of, to improve practicability.
(2) basic agent is added into restored acid industrial wastewater, and the pH value of industrial wastewater is adjusted to neutrality；Its
Specific step is as follows:
The acidic industrial effluent generated in process of production to metallurgy, plating, petrochemical industry, intermetallic composite coating class enterprise returns
It receives, and restored acid industrial wastewater is injected in processing pond and is neutralized, adjust the pH value of acidic industrial effluent.Then
Alkalinity quick lime medicament made of step (1) is injected in processing pond, acidity and the alkaline quick lime of acidic industrial effluent are utilized
The alkalinity of medicament carries out acid-base neutralization processing, and the pH value of the industrial wastewater in processing pond is adjusted to neutral (i.e. PH=7.0).In
While injecting alkaline quick lime medicament into processing pond, constantly the industrial wastewater in processing pond is stirred using blender
It mixes, acid-base neutralization efficiency is improved, to improve Industrial Wastewater Treatment efficiency.
(3) heavy metal in industrial wastewater is removed；The specific steps of which are as follows:
Due to containing the harmful substances such as heavy metal in industrial wastewater, if causing in industrial wastewater without processing direct emission
The pollutants such as heavy metal penetrate into soil or water quality, water and soil pollution are caused, to pollute environment；Meanwhile the weight in industrial wastewater
The pollutant of metal is inhaled into human body after penetrating into soil or water quality, threatens the health of the mankind, it is therefore desirable to industrial wastewater
It is removed the detoxications such as heavy metal.When carrying out the pollutants such as removing heavy metals to industrial wastewater, by neutral Industry Waste
Water is evacuated in removing heavy metals slot and is handled, while injecting heavy metal settling agent into heavy metal slot, so that in industrial wastewater
Heavy metal ion reacts with heavy metal settling agent, removes the heavy metal ion in industrial wastewater, and production contains heavy metal
Floccule, to effectively remove the heavy metal ion in industrial wastewater.
(4) filters pressing is carried out to industrial wastewater, solid and liquid is separated；The specific steps of which are as follows:
Industrial wastewater after except metal ion is subjected to filters pressing, realizes solid and liquid separation.When separation, using filter press
Filters pressing is carried out, after the floccule for being mixed with heavy metal enters filter press together with liquid, carries out filters pressing processing by filter press,
By the filters pressing of heavy metal floccule at the sludge of solid structure, to effectively realize the nuisances such as the heavy metal in industrial wastewater
Matter.And the harmful substance in the liquid after filters pressing is low, and reaches the emission request of national regulation.Wherein, heavy metal settling agent packet
Including the polyacrylamide that mass ratio is 1%~8% can be achieved.The mass percent of the polyacrylamide is in 1%~8%
Any value can be achieved.
(5) fixation is recycled, liquid is discharged.
Industrial wastewater realizes solid and liquid separation, the solid after separation is carried out at recycling after filter press is handled
Reason, to effectively reduce environmental pollution, while reducing the discharge amount of pollutant, and the index of the liquid after filters pressing meets state
Emission request as defined in family, can be discharged, to effectively avoid industrial wastewater direct emission, cause environmental pollution,
Environment is protected, the environmental requirement of country is met, meanwhile, the processing cost of industrial wastewater is effectively reduced, economic effect is improved
Benefit, and convenient in industry promoting the use of, it has a vast market foreground.
Above-described embodiment is only wherein specific implementation of the invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these obvious alternative forms are equal
It belongs to the scope of protection of the present invention.
Claims (8)
1. a kind of processing method of acidic industrial effluent, which comprises the following steps:
(1) basic agent for neutralizing acidic industrial effluent is made；
(2) basic agent is added into restored acid industrial wastewater, and the pH value of industrial wastewater is adjusted to neutrality；
(3) heavy metal in industrial wastewater is removed；
(4) filters pressing is carried out to industrial wastewater, solid and liquid is separated；
(5) fixation is recycled, liquid is discharged.
2. the processing method of acidic industrial effluent according to claim 1, which is characterized in that the specific steps of step (1)
It is as follows:
(11) selected to the progress of alkaline drug raw material, choose the lesser selected alkaline drug raw material of particle；
(12) grinding to selected alkaline drug raw material is ground into nanoscale alkaline drug raw material；
(13) medicament is made in nanoscale alkaline drug raw material and be filtered, basic agent is made.
3. the processing method of acidic industrial effluent according to claim 2, which is characterized in that step (12) uses nanoscale
Grinder is ground.
4. the processing method of acidic industrial effluent according to claim 2, which is characterized in that the alkaline drug raw material
For quick lime.
5. the processing method of acidic industrial effluent according to claim 1, which is characterized in that step (3) uses heavy metal
Sedimentation agent removes the heavy metal in industrial wastewater.
6. the processing method of acidic industrial effluent according to claim 5, which is characterized in that the heavy metal settling agent
Including polyacrylamide.
7. the processing method of acidic industrial effluent according to claim 6, which is characterized in that the polyacrylamide matter
Amount ratio is 1%~8%.
8. the processing method of acidic industrial effluent according to claim 1, which is characterized in that step (4) uses filter press
Filters pressing is carried out to industrial wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428215.1A CN110451676A (en) | 2018-05-07 | 2018-05-07 | A kind of processing method of acidic industrial effluent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428215.1A CN110451676A (en) | 2018-05-07 | 2018-05-07 | A kind of processing method of acidic industrial effluent |
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| Publication Number | Publication Date |
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| CN110451676A true CN110451676A (en) | 2019-11-15 |
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| CN201810428215.1A Pending CN110451676A (en) | 2018-05-07 | 2018-05-07 | A kind of processing method of acidic industrial effluent |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645730A (en) * | 1995-02-21 | 1997-07-08 | Envirocorp Services & Technology, Inc. | Acid wastewater treatement |
| CN101993158A (en) * | 2009-08-28 | 2011-03-30 | 宁波宝新不锈钢有限公司 | Method for treating stainless steel cold rolling pickling waste water |
| CN102757142A (en) * | 2012-08-06 | 2012-10-31 | 浙江海拓环境技术有限公司 | Method for recycling and processing nickel in stainless steel pickling waste acid |
| US20140251914A1 (en) * | 2013-03-07 | 2014-09-11 | Brandon Ryan Ball | Method for treating acid mine drainage |
| CN105130041A (en) * | 2015-06-26 | 2015-12-09 | 中钢集团马鞍山矿山研究院有限公司 | Improved treatment method of acidic waste water containing heavy metals |
-
2018
- 2018-05-07 CN CN201810428215.1A patent/CN110451676A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645730A (en) * | 1995-02-21 | 1997-07-08 | Envirocorp Services & Technology, Inc. | Acid wastewater treatement |
| CN101993158A (en) * | 2009-08-28 | 2011-03-30 | 宁波宝新不锈钢有限公司 | Method for treating stainless steel cold rolling pickling waste water |
| CN102757142A (en) * | 2012-08-06 | 2012-10-31 | 浙江海拓环境技术有限公司 | Method for recycling and processing nickel in stainless steel pickling waste acid |
| US20140251914A1 (en) * | 2013-03-07 | 2014-09-11 | Brandon Ryan Ball | Method for treating acid mine drainage |
| CN105130041A (en) * | 2015-06-26 | 2015-12-09 | 中钢集团马鞍山矿山研究院有限公司 | Improved treatment method of acidic waste water containing heavy metals |
Non-Patent Citations (2)
| Title |
|---|
| 罗湘成等: "《中国基础水利、水资源与水处理实务》", 28 February 1998, 中国环境科学出版社 * |
| 许志铭: "《高中化学教学指导 高三分册》", 31 October 1998, 苏州大学出版社 * |
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Application publication date: 20191115 |