CN109516537A - Medicament, preparation method and the sewage water treatment method of fluoride in a kind of removal sewage - Google Patents
Medicament, preparation method and the sewage water treatment method of fluoride in a kind of removal sewage Download PDFInfo
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- CN109516537A CN109516537A CN201910078425.7A CN201910078425A CN109516537A CN 109516537 A CN109516537 A CN 109516537A CN 201910078425 A CN201910078425 A CN 201910078425A CN 109516537 A CN109516537 A CN 109516537A
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- sewage
- water
- fluoride
- medicament
- flocculating agent
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine 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
- C02F1/52—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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses medicament, preparation method and the sewage water treatment methods of fluoride in a kind of removal sewage, belong to technical field of sewage, Chinese medicine includes: glucose, flocculating agent, inorganic acid, metal carbonate and water；The mass percent of glucose, flocculating agent, inorganic acid, metal carbonate and water are as follows: glucose 25-35%, flocculating agent 4-6%, inorganic acid 1-2%, metal carbonate 8-10%, water 47-62%.Medicament of the present invention is in liquid, and convenient for operation, sludge output is few, at low cost.Fluorine removing rate of the present invention is high, and fluoride can drop to 1.5mg/L hereinafter, achieving positive effect in local more sewage treatment plants after processing, is suitable for various types sewage treatment plant.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of to remove the medicament of fluoride, preparation side in sewage
Method and sewage water treatment method.
Background technique
Water is the indispensable resource of the mankind, with the enhancing of people's environmental consciousness, active response national policy and policy,
Relevant department increasingly payes attention to the processing and its discharge of sewage.Manufacture of the fluoride mainly from fluorine-containing product, coke in sewage
Charcoal production, production of electronic components, plating, glass and silicate production, the manufacture of steel and aluminium, intermetallic composite coating, wood preservation and
During agriculture chemical production etc..
Traditional fluoride waste minimizing technology is calcium salt precipitation method, Coagulation Method, absorption method etc..Wherein calcium salt precipitation method compared with
For there are commonly lime and calcium chloride co-precipitation method, this method generation body refuse is more, fluorine removing rate is low, due to lime and chlorination
Calcium dosage is big, and relative cost is high.Traditional coagulant is unobvious for the fluoride waste removal effect of low concentration, it is difficult to reach reuse
The requirement of water.
A kind of Treating apparatus for waste water containing fluoride and its method are disclosed in Chinese patent CN1244501A, using calcium is added
Compound is reacted with fluoride generates calcium fluoride precipitate method, and fluorine removing rate is low.And for the fluoride pollution in electroplating wastewater, middle articles and opinions
It mentions in literary " improvement of Fluorine Containing Electroplating Wastewater Treatment Process " (" plating and environmental protection ", 2007) using by adjusting to dirty in waste water
The processing sequence for contaminating object, increases the sludge reflux in precipitation process etc. to improve fluoride waste at the conditions and environment for changing reaction
Treatment effect, but after treatment process processing, Funing tablet is still greater than 6mg/L, is unable to satisfy into film water quality requirement, fluorine removing rate
It is low.
Summary of the invention
Therefore, technical problems to be solved of the embodiment of the present invention are the method fluorine removal of processing fluoride in the prior art
Low efficiency.
For this purpose, in a kind of removal sewage of the embodiment of the present invention fluoride medicament, comprising: it is glucose, flocculating agent, inorganic
Acid, metal carbonate and water；
The mass percent of the glucose, flocculating agent, inorganic acid, metal carbonate and water are as follows: glucose 25-35%,
Flocculating agent 4-6%, inorganic acid 1-2%, metal carbonate 8-10%, water 47-62%.
Preferably, the flocculating agent includes inorganic aluminate flocculating agent.
Preferably, the inorganic aluminate flocculating agent include aluminum sulfate, aluminium chloride, polyaluminium sulfate, in aluminium polychloride
It is one or more kinds of.
Preferably, the inorganic acid includes one or both of hydrochloric acid, sulfuric acid.
Preferably, the metal carbonate includes one or both of calcium carbonate, magnesium carbonate.
A kind of method for preparing the medicament of fluoride in above-mentioned removal sewage of the embodiment of the present invention, including following step
It is rapid:
The flocculating agent and 1-2% inorganic acid of 4-6% liquid are added in 47-62% water, is heated to 55-65 DEG C, stirring is anti-
After answering uniformly, it is cooled to 35-45 DEG C, adds 8-10% metal carbonate, prepares the first mixing after being stirred to react uniformly
Solution；
First mixed solution is cooled to room temperature, is added in 25-35% glucose, obtains medicament after being stirred to react uniformly.
The sewage water treatment method of fluoride in a kind of removal sewage of the embodiment of the present invention, comprising the following steps:
Fluorine in the above-mentioned removal sewage of water 1-4 ‰ is added in the sewage secondary settling tank containing 10-20mg/L fluoride
The medicament of compound, reaction a period of time.
Preferably, the above-mentioned of water 1-4 ‰ is added in the sewage secondary settling tank containing 10-20mg/L fluoride to go to decontaminate
It is further comprising the steps of after the step of medicament of fluoride in water, reaction a period of time:
The flocculation aid of water a ten thousandth is added, after reacting a period of time, sodium hydroxide is added to adjust pH value to neutrality,
It is discharged after sedimentation by arrow slot, the water of discharge is water up to standard.
Preferably, the flocculation aid includes polyacrylamide.
The technical solution of the embodiment of the present invention, has the advantages that
1. carbon source can be provided by using glucose, the biodegradability of sewage is improved.In addition glucose belongs to big point
Son can preferentially sink when forming precipitating, drive other microscopic precipitate objects in sewage to sink together, play clean-up effect.Add Portugal
Fluorine better effect is gone after grape sugar, fluorine ion can be down to 0.5mg/L hereinafter, improving fluorine removal effect by the content for improving glucose
Rate.By by inorganic flocculation agent and organic glucose combination, just as form one capture sewage in fluorine ion it is strong
Net, reduce rapidly content of fluoride ion in sewage, and Organic grape sugar is combined with the cation in inorganic metal carbonate,
Novel chelating agents are formed, fluorine ion is captured, it can rapid subsidence.
2. combining by using inorganic aluminate flocculating agent and fluorine ion, complex compound is formed, since inorganic aluminate flocculating agent is
Macromolecule polyalcohol, charge is higher, while can have absorption, cohesion, precipitating etc. with other microscopic precipitate objects in adsorption precipitation pond
Performance, cooperates glucose, and flocculating effect more preferably, further improves fluorine removing rate.
3. the pH value of medicament is adjusted by using inorganic acid, agent stability is maintained.
4. the metal cation and fluorine ion of one side metal carbonate form precipitating, yin by using metal carbonate
Ion carbonate is not have an impact to obtain carbon dioxide after reacting to water body.Another aspect metal carbonate saline solution
In alkalinity, the pH value of inorganic acid regulating agent can be cooperated, pH value is pulled back into 3-4, obtains the optimum efficiency of processing sewage.
5. further promoting fluoride in water to come into full contact with fluorine ingredient close in medicament by using flocculation aid, forming network
Object is closed, fine precipitates are generated after cohesion and are be combined with each other, floccule body is generated.Floccule body is loose aggregation, is had very high
Adsorption capacity, some suspended matters etc. for causing water colour, turbidity can also be adsorbed by not only having adsorbed fluoride in water, be further improved
Fluorine removing rate.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific embodiment will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention
Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the process that a specific example of the sewage water treatment method of fluoride in sewage is removed in the embodiment of the present invention
Figure.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It is understood that term " flocculating agent ": can be used as strengthen be separated by solid-liquid separation means, for primary sedimentation tank, secondary settling tank,
The process procedures such as floation tank and tertiary treatment or advanced treating.
Term " flocculation aid ": coagulant aids plays a role, and reinforces coagulation effect.
In the description of the present invention, it should be noted that the term as used herein is only used for the mesh of description specific embodiment
, and it is not intended to limit the present invention.Unless clearly indicated by the context, otherwise singular " one " as used herein,
The intentions such as "one" and "the" also include plural form.When using terms such as " include " and or " include ", it is intended to illustrate exist
This feature, integer, step, operation, element and/or component, and it is not excluded for one or more other features, integer, step, behaviour
Work, element, component, and/or other presence or increase for combining.Term "and/or" includes that one or more correlations list project
Any and all combinations.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Present embodiment provides a kind of medicament of fluoride in removal sewage, comprising: glucose, flocculating agent, inorganic
Acid, metal carbonate and water；The mass percent of glucose, flocculating agent, inorganic acid, metal carbonate and water are as follows: glucose 25-
35%, flocculating agent 4-6%, inorganic acid 1-2%, metal carbonate 8-10%, water 47-62%.
Preferably, glucose is Dextrose Monohydrate, glucose content >=99%.
Preferably, flocculating agent includes inorganic aluminate flocculating agent.
Preferably, inorganic aluminate flocculating agent includes one of aluminum sulfate, aluminium chloride, polyaluminium sulfate, aluminium polychloride
Or it is two or more.
Preferably, inorganic acid includes one or both of hydrochloric acid, sulfuric acid.
Preferably, metal carbonate includes one or both of calcium carbonate, magnesium carbonate.
The medicament of fluoride can provide carbon source, mention by using glucose in the removal sewage of present embodiment
The biodegradability of high sewage.In addition glucose belongs to macromolecular, can preferentially sink when forming precipitating, drives other in sewage micro-
Small sediment sinks together, plays clean-up effect.Fluorine better effect is gone after adding glucose, the content for improving glucose can be by fluorine
Ion is down to 0.5mg/L hereinafter, improving fluorine removing rate.It is combined by using inorganic aluminate flocculating agent and fluorine ion, forms network
Object is closed, since inorganic aluminate flocculating agent is macromolecule polyalcohol, charge is higher, while can be small heavy with other in adsorption precipitation pond
Starch has the performances such as absorption, cohesion, precipitating, cooperates glucose, and flocculating effect more preferably, further improves fluorine removing rate.
By using inorganic acid, the pH value of medicament is adjusted, maintains agent stability.By using metal carbonate, one side metal
The metal cation and fluorine ion of carbonate form precipitating, and anion carbonate is in order to obtain carbon dioxide after reacting, to water
Body does not have an impact.Another aspect metal carbonate saline solution can cooperate the pH value of inorganic acid regulating agent, by pH in alkalinity
Value pulls back to 3-4, obtains the optimum efficiency of processing sewage.
Present embodiment provides a kind of method for preparing the medicament of fluoride in above-mentioned removal sewage, including following
Step:
S1-1, the flocculating agent and 1-2% inorganic acid that 4-6% liquid is added in 47-62% water, are heated to 55-65 DEG C, excellent
Selection of land can be heated to 60 DEG C, after being stirred to react uniformly, is cooled to 35-45 DEG C, can preferably be cooled to 40 DEG C, add 8-10%
Metal carbonate prepares the first mixed solution after being stirred to react uniformly.Preferably, nothing is added in inorganic aluminate flocculating agent
Machine acid, makes acid content reach 5%-6%, metal carbonate is then added, and can adjust back and be neutralized to pH value is 3-4.
S1-2, the first mixed solution is cooled to room temperature, is added in 25-35% glucose, obtained after being stirred to react uniformly
Medicament.
Present embodiment provide it is a kind of removal sewage in fluoride sewage water treatment method, as shown in Figure 1, include with
Lower step:
S2-1, the removal sewage that water 1-4 ‰ is added with water pump in the sewage secondary settling tank containing 10-20mg/L fluoride
The medicament of middle fluoride, reaction a period of time.Depending on time can be according to actual conditions, such as 1-2 hours.
Preferably, further comprising the steps of after S2-1:
After reacting a period of time, sodium hydroxide is added to adjust in S2-2, the flocculation aid that water a ten thousandth is added with water pump
PH value is discharged after sedimentation by arrow slot, the water of discharge is water up to standard to neutrality.Depending on time can be according to actual conditions, such as
Or so half an hour.Preferably, flocculation aid includes polyacrylamide.
By above-mentioned sewage water treatment method, medicament is added in the sewage containing fluoride, by by inorganic flocculation agent and
Organic glucose combines, and the strong net just as foring fluorine ion in a capture sewage reduces rapidly fluorine in sewage
Ion concentration, and Organic grape sugar is combined with the cation in inorganic metal carbonate, forms novel chelating agents, captures fluorine
Ion, can rapid subsidence.Then flocculation aid polyacrylamide is launched, it, can be by fluorine with sodium hydroxide adjusting pH value to neutrality
Compound content is handled by 10-20mg/L to 0.5mg/L (preferable situation) hereinafter, reaching sewage drainage standard, and can be used for
Irrigation and general landscape water.The medicament is in liquid, and convenient for operation, sludge output is few, at low cost.In local more sewage treatments
Factory achieves positive effect, is suitable for various types sewage treatment plant, can handle scale at present and reach 100000m3/d。
Several embodiments are set forth below to be described in detail.
Embodiment 1
The chemical content of fluoride is as shown in the table in the removal sewage of the present embodiment.
The chemical content table of 1 embodiment 1 of table
| Ingredient | Aluminium chloride | Hydrochloric acid | Calcium carbonate | Glucose | Water |
| Content (%) | 4 | 1 | 8 | 25 | 62 |
Using the medicament matched in upper table, according to above-mentioned sewage water treatment method to containing 20mg/L fluorine ion in secondary settling tank
Sewage is handled, and 4 ‰ medicament of water is added, and is obtained content of fluoride ion and is dropped to 1.0mg/L, reaches sewage discharge mark
Standard, and can be used for irrigation and general landscape water.
Embodiment 2
The chemical content of fluoride is as shown in the table in the removal sewage of the present embodiment.
The chemical content table of 2 embodiment 2 of table
| Ingredient | Aluminum sulfate | Sulfuric acid | Calcium carbonate | Glucose | Water |
| Content (%) | 5 | 1 | 9 | 30 | 55 |
Using the medicament matched in upper table, according to above-mentioned sewage water treatment method to containing 20mg/L fluorine ion in secondary settling tank
Sewage is handled, and 4 ‰ medicament of water is added, and is obtained content of fluoride ion and is dropped to 0.8mg/L, reaches sewage discharge mark
Standard, and can be used for irrigation and general landscape water.
Embodiment 3
The chemical content of fluoride is as shown in the table in the removal sewage of the present embodiment.
The chemical content table of 3 embodiment 3 of table
| Ingredient | Aluminium polychloride | Hydrochloric acid | Magnesium carbonate | Glucose | Water |
| Content (%) | 5 | 1 | 10 | 35 | 49 |
Using the medicament matched in upper table, according to above-mentioned sewage water treatment method to containing 20mg/L fluorine ion in secondary settling tank
Sewage is handled, and 4 ‰ medicament of water is added, and is obtained content of fluoride ion and is dropped to 0.5mg/L, reaches sewage discharge mark
Standard, and can be used for irrigation and general landscape water.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. the medicament of fluoride in a kind of removal sewage characterized by comprising glucose, flocculating agent, inorganic acid, metal carbon
Hydrochlorate and water；
The mass percent of the glucose, flocculating agent, inorganic acid, metal carbonate and water are as follows: glucose 25-35%, cohesion
Agent 4-6%, inorganic acid 1-2%, metal carbonate 8-10%, water 47-62%.
2. medicament according to claim 1, which is characterized in that the flocculating agent includes inorganic aluminate flocculating agent.
3. medicament according to claim 2, which is characterized in that the inorganic aluminate flocculating agent include aluminum sulfate, aluminium chloride,
One or more of polyaluminium sulfate, aluminium polychloride.
4. medicament according to claim 1-3, which is characterized in that the inorganic acid includes hydrochloric acid, in sulfuric acid
It is one or two kinds of.
5. medicament according to claim 1-4, which is characterized in that the metal carbonate includes calcium carbonate, carbon
One or both of sour magnesium.
6. a kind of method for preparing the medicament of fluoride in removal sewage as described in any one in claim 1-5, feature exist
In, comprising the following steps:
The flocculating agent and 1-2% inorganic acid of 4-6% liquid are added in 47-62% water, is heated to 55-65 DEG C, is stirred to react
After even, it is cooled to 35-45 DEG C, adds 8-10% metal carbonate, prepares the first mixed solution after being stirred to react uniformly；
First mixed solution is cooled to room temperature, is added in 25-35% glucose, obtains medicament after being stirred to react uniformly.
7. the sewage water treatment method of fluoride in a kind of removal sewage, which comprises the following steps:
In the sewage secondary settling tank containing 10-20mg/L fluoride be added water 1-4 ‰ as described in claim any one of 1-5
Removal sewage in fluoride medicament, reaction a period of time.
8. sewage water treatment method according to claim 7, which is characterized in that in the sewage containing 10-20mg/L fluoride
The medicament of fluoride in the removal sewage as described in any one in claim 1-5 of water 1-4 ‰, reaction one are added in secondary settling tank
It is further comprising the steps of after the step of section time:
The flocculation aid of water a ten thousandth is added, after reacting a period of time, sodium hydroxide is added to adjust pH value to neutrality, sedimentation
It is discharged afterwards by arrow slot, the water of discharge is water up to standard.
9. sewage water treatment method according to claim 8, which is characterized in that the flocculation aid includes polyacrylamide.
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| CN201910078425.7A CN109516537A (en) | 2019-01-28 | 2019-01-28 | Medicament, preparation method and the sewage water treatment method of fluoride in a kind of removal sewage |
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| CN201910078425.7A CN109516537A (en) | 2019-01-28 | 2019-01-28 | Medicament, preparation method and the sewage water treatment method of fluoride in a kind of removal sewage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794420A (en) * | 2020-12-23 | 2021-05-14 | 武汉理工大学 | Efficient low-cost fluorine removal agent and deep fluorine removal method |
| CN115571963A (en) * | 2022-10-17 | 2023-01-06 | 西安西热水务环保有限公司 | Synchronous turbidity-reducing and fluorine-removing medicament and use method thereof |
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| CN104355377A (en) * | 2014-10-21 | 2015-02-18 | 苏州富奇诺水治理设备有限公司 | Sewage treatment agent and preparation method |
| CN108408988A (en) * | 2018-05-17 | 2018-08-17 | 北京翰祺环境技术有限公司 | A kind of method and apparatus of substep removal fluorine in wastewater compound |
| CN109179799A (en) * | 2018-08-31 | 2019-01-11 | 湖南中冶艾迪环保资源开发有限公司 | A kind of processing method of high-concentration fluorine-containing waste water |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1035997A (en) * | 1988-03-26 | 1989-10-04 | 中南工业大学 | Treatment of fluorine containing mine waste water |
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Application publication date: 20190326 |