CN109133309A - A kind of preparation method of compound sewage-treating agent - Google Patents
A kind of preparation method of compound sewage-treating agent Download PDFInfo
- Publication number
- CN109133309A CN109133309A CN201811176603.1A CN201811176603A CN109133309A CN 109133309 A CN109133309 A CN 109133309A CN 201811176603 A CN201811176603 A CN 201811176603A CN 109133309 A CN109133309 A CN 109133309A
- Authority
- CN
- China
- Prior art keywords
- treating agent
- preparation
- compound sewage
- active carbon
- added
- 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
- 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
- C02F1/52—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
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Abstract
The invention discloses a kind of preparation methods of compound sewage-treating agent, comprising: (1) is added to the water a certain amount of active carbon, ultrasonic disperse is uniform, obtains the active carbon suspension that mass concentration is 10~100g/L；(2) modifying agent is added in the active carbon suspension made from step (1), is stirred to react 30~40min in 70~90 DEG C, be filtered by vacuum, wash, it is dry, obtain modified activated carbon；(3) above-mentioned modified activated carbon is added in the chitosan-acetic acid solution that mass fraction is 2~5%, stirring is warming up to 50~60 DEG C, it is heated to reflux 1~2h, adds a certain amount of polymeric ferrous sulphate solution, the pH for controlling mixed solution is 6.8~7.3, continue stirring, 1~2h of heating reflux reaction, it is cooled to room temperature, cures 12~36h, it is dry, grinding, obtains compound sewage-treating agent.Compound sewage-treating agent sedimentation effect in the present invention is good, can be greatly improved using the removal rate of the inorganic agent processed chemical oxygen demand in sewage COD and turbidity SS in the present invention.
Description
Technical field
The present invention relates to environment protection field technical fields, more particularly to a kind of preparation method of compound sewage-treating agent.
Background technique
The rapid development of dyestuff and printing and dyeing industry is on the rise to the harm of environment.Waste water from dyestuff more, ingredient with type
The features such as complicated, coloration is deeply, toxicity is big, organic pollutant content is high and is difficult to biodegrade is that China is several refractory at present
One of waste water of reason.Rhodamine B is a kind of acid dyes, is a kind of polycyclic aromatic hydrocarbon organic compound, it is difficult to degrade to belong to persistence
Organic pollutant, this kind of synthetic organic dye can generate biggish organic contact scar to by water body, with making one not pleasant each
Kind color, brings biggish destruction to the ecosystem of water body.
For this reason, it is necessary to be able to solve in view of the above-mentioned problems, propose a kind of preparation method of compound sewage-treating agent
Problems of the prior art.
Summary of the invention
It is in the prior art to overcome the purpose of the present invention is to provide a kind of preparation method of compound sewage-treating agent
It is insufficient.
To achieve the above object, the invention provides the following technical scheme:
A kind of preparation method of compound sewage-treating agent, comprising:
(1) a certain amount of active carbon is added to the water, ultrasonic disperse is uniform, obtains the work that mass concentration is 10~100g/L
Property charcoal suspension；
(2) modifying agent is added in the active carbon suspension made from step (1), it is stirred to react 30 in 70~90 DEG C~
40min is filtered by vacuum, and washs, dry, obtains modified activated carbon；
(3) above-mentioned modified activated carbon is added in the chitosan-acetic acid solution that mass fraction is 2~5%, stirring is warming up to
50~60 DEG C, be heated to reflux 1~2h, add a certain amount of polymeric ferrous sulphate solution, control mixed solution pH be 6.8~
7.3, continue stirring, 1~2h of heating reflux reaction, be cooled to room temperature, cure 12~36h, dry, grinding obtains compound dirt
Water treatment agent.
Preferably, in step (1), ultrasonic power is 800~1200W.
Preferably, in step (2), the modifying agent is at least one of hydrochloric acid, nitric acid, sulfuric acid.
Preferably, the concentration of the modifying agent is 1~5mol/L.
Preferably, in step (2), the volume ratio of the modifying agent and the active carbon suspension is 1:10~20.
Preferably, in step (3), the modified activated carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution
Molar ratio be 3~8:1:2~5.
Preferably, the modified activated carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be
5:1:3。
Preferably, in step (3), the pH of mixed solution is 7.
Compared with the prior art, the advantages of the present invention are as follows: the compound sewage-treating agent sedimentation effect in the present invention is good,
It can be greatly improved using the removal rate of the inorganic agent processed chemical oxygen demand in sewage COD and turbidity SS in the present invention.
Specific embodiment
The present invention is described further by the following example: according to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described in embodiment are only used
In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
The present invention discloses a kind of preparation method of compound sewage-treating agent, comprising:
(1) a certain amount of active carbon is added to the water, ultrasonic disperse is uniform, obtains the work that mass concentration is 10~100g/L
Property charcoal suspension；
(2) modifying agent is added in the active carbon suspension made from step (1), it is stirred to react 30 in 70~90 DEG C~
40min is filtered by vacuum, and washs, dry, obtains modified activated carbon；
(3) above-mentioned modified activated carbon is added in the chitosan-acetic acid solution that mass fraction is 2~5%, stirring is warming up to
50~60 DEG C, be heated to reflux 1~2h, add a certain amount of polymeric ferrous sulphate solution, control mixed solution pH be 6.8~
7.3, continue stirring, 1~2h of heating reflux reaction, be cooled to room temperature, cure 12~36h, dry, grinding obtains compound dirt
Water treatment agent.
Wherein, in step (1), ultrasonic power is 800~1200W, it is preferred that ultrasonic power 1000W；In step (2),
The modifying agent is at least one of hydrochloric acid, nitric acid, sulfuric acid, and further, the concentration of the modifying agent is 1~5mol/L,
Preferably, the concentration of the modifying agent is 3mol/L；The volume ratio of the modifying agent and the active carbon suspension be 1:10~
20, it is preferred that the volume ratio of the modifying agent and the active carbon suspension is 1:15；In step (3), the modified active
Charcoal, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 3~8:1:2~5, it is preferred that the modification
Active carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 5:1:3；Further, mixed solution
PH be 7.
The preparation method of compound sewage-treating agent is illustrated with specific embodiment below.
Embodiment 1
(1) a certain amount of active carbon is added to the water, ultrasonic disperse is uniform, obtains the active carbon that mass concentration is 10g/L
Suspension；
(2) modifying agent that concentration is 1mol/L is added in the active carbon suspension made from step (1), it is anti-in 70 DEG C of stirrings
30min is answered, is filtered by vacuum, is washed, it is dry, obtain modified activated carbon, wherein the modifying agent and the active carbon suspension
Volume ratio is 1:10；
(3) above-mentioned modified activated carbon is added in the chitosan-acetic acid solution that mass fraction is 2%, stirring is warming up to 50
DEG C, it is heated to reflux 1h, adds a certain amount of polymeric ferrous sulphate solution, the pH for controlling mixed solution is 6.8, continues stirring, adds
Hot back flow reaction 1h, is cooled to room temperature, and cures 12h, dry, and grinding obtains compound sewage-treating agent, wherein the modification
Active carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 3:1:2.
Embodiment 2
(1) a certain amount of active carbon is added to the water, ultrasonic disperse is uniform, obtains the active carbon that mass concentration is 50g/L
Suspension；
(2) modifying agent that concentration is 3mol/L is added in the active carbon suspension made from step (1), it is anti-in 80 DEG C of stirrings
35min is answered, is filtered by vacuum, is washed, it is dry, obtain modified activated carbon, wherein the modifying agent and the active carbon suspension
Volume ratio is 1:15；
(3) above-mentioned modified activated carbon is added in the chitosan-acetic acid solution that mass fraction is 3%, stirring is warming up to 55
DEG C, it is heated to reflux 1.5h, adds a certain amount of polymeric ferrous sulphate solution, the pH for controlling mixed solution is 7, continues stirring, adds
Hot back flow reaction 1.5h, is cooled to room temperature, and curing is for 24 hours, dry, and grinding obtains compound sewage-treating agent, wherein described to change
Property active carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 5:1:3.
Embodiment 3
(1) a certain amount of active carbon is added to the water, ultrasonic disperse is uniform, obtains the active carbon that mass concentration is 100g/L
Suspension；
(2) modifying agent that concentration is 5mol/L is added in the active carbon suspension made from step (1), it is anti-in 90 DEG C of stirrings
40min is answered, is filtered by vacuum, is washed, it is dry, obtain modified activated carbon, wherein the modifying agent and the active carbon suspension
Volume ratio is 1:20；
(3) above-mentioned modified activated carbon is added in the chitosan-acetic acid solution that mass fraction is 5%, stirring is warming up to 60
DEG C, it is heated to reflux 2h, adds a certain amount of polymeric ferrous sulphate solution, the pH for controlling mixed solution is 7.3, continues stirring, adds
Hot back flow reaction 2h, is cooled to room temperature, and cures 36h, dry, and grinding obtains compound sewage-treating agent, wherein the modification
Active carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 8:1:5.
The compound sewage-treating agent sedimentation effect that method in the present invention is prepared is good, using compound in the present invention
Type sewage-treating agent handles sewage, the results showed that, the removal rate of chemical oxygen demand in sewage COD and turbidity SS can be big
It is big to improve, wherein the removal rate of COD COD can reach 70~80%, and the removal rate of turbidity SS can reach 93~98%.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.
Claims (8)
1. a kind of preparation method of compound sewage-treating agent characterized by comprising
(1) a certain amount of active carbon is added to the water, ultrasonic disperse is uniform, obtains the active carbon that mass concentration is 10~100g/L
Suspension；
(2) modifying agent is added in the active carbon suspension made from step (1), is stirred to react 30~40min in 70~90 DEG C, very
Empty pump filter, is washed, dry, obtains modified activated carbon；
(3) above-mentioned modified activated carbon being added in the chitosan-acetic acid solution that mass fraction is 2~5%, stirring is warming up to 50~
60 DEG C, it is heated to reflux 1~2h, adds a certain amount of polymeric ferrous sulphate solution, the pH for controlling mixed solution is 6.8~7.3, after
Continuous stirring, 1~2h of heating reflux reaction, are cooled to room temperature, and cure 12~36h, dry, and grinding obtains compound sewage treatment
Agent.
2. the preparation method of compound sewage-treating agent according to claim 1, which is characterized in that in step (1), ultrasound
Power is 800~1200W.
3. the preparation method of compound sewage-treating agent according to claim 1, which is characterized in that described in step (2)
Modifying agent is at least one of hydrochloric acid, nitric acid, sulfuric acid.
4. the preparation method of compound sewage-treating agent according to claim 3, which is characterized in that the modifying agent it is dense
Degree is 1~5mol/L.
5. the preparation method of compound sewage-treating agent according to claim 1, which is characterized in that described in step (2)
The volume ratio of modifying agent and the active carbon suspension is 1:10~20.
6. the preparation method of compound sewage-treating agent according to claim 1, which is characterized in that described in step (3)
Modified activated carbon, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 3~8:1:2~5.
7. the preparation method of compound sewage-treating agent according to claim 6, which is characterized in that the modified active
Charcoal, the chitosan-acetic acid solution, the polymeric ferrous sulphate solution molar ratio be 5:1:3.
8. the preparation method of compound sewage-treating agent according to claim 1, which is characterized in that in step (3), mixing
The pH of solution is 7.
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| CN201811176603.1A CN109133309A (en) | 2018-10-10 | 2018-10-10 | A kind of preparation method of compound sewage-treating agent |
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| CN201811176603.1A CN109133309A (en) | 2018-10-10 | 2018-10-10 | A kind of preparation method of compound sewage-treating agent |
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