CN105036285B - Aniline sewage decolorization treatment agent, and preparation method and application method thereof - Google Patents
Aniline sewage decolorization treatment agent, and preparation method and application method thereof Download PDFInfo
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Abstract
The invention discloses an aniline sewage decolorization treatment agent, and a preparation method and application method thereof. The aniline sewage decolorization treatment agent comprises a reducer, a decolorant and a synergist in a weight ratio of 1:(0.67-1.5):(0.67-1.5). The reducer is composed of the following components in percentage by weight: 5-10% of aluminum potassium sulfate, 5-10% of magnesium sulfate, 13-18% of polyaluminum chloride and 67-73% of water. The decolorant is composed of the following components in percentage by weight: 5-10% of epoxyethane, 5-10% of triethanolamine, 20-25% of powder activated carbon and 60-65% of water. The synergist is composed of the following components in percentage by weight: 0.1-0.2% of polyacrylamide, 5-10% of aluminum amine sulfate and 89.9-94.8% of water. By matching the components of the reducer, decolorant and synergist, the aniline sewage treatment agent has unique removal effects on high chroma, aniline and COD (chemical oxygen demand) in aniline sewage; and the chroma, COD, suspended substance and aniline contents in the treated wastewater are obviously and greatly reduced.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of aniline sewage decolorizing treatment agent and preparation method thereof
And application method.
Background technology
Aniline sewage is high chroma, the alkaline sewage of content of organics high that petrochemical industry is produced, and the water water quality is given birth to
The property changed is poor, and colourity is high, is a kind of typical difficult for biological degradation chemical industrial organic wastewater.If this sewage is expelled directly out severe contamination
Water source, if being directly discharged into sewage treatment plant, will have a strong impact on sewage qualified discharge rate.
At present, the processing method of aniline sewage mainly has biologic treating technique, absorption except color technology, hypochlorite oxidation skill
Art, high-level oxidation technology etc., but these methods have its limitation.Absorption method is most common physical treatment method, with setting
Standby simple, easy to operate, the advantages of technical maturity, pollutant is generally transferred to solid phase or gas phase by adsorption technology from liquid phase, not
Organic pollution is completely eliminated, secondary pollution is easily caused, and the regeneration of adsorbent and the treatment of regeneration liquid waste are also one sometimes
Problem.Biological treatment is widely used to the treatment of industrial wastewater, because its equipment and operational management are simple, operating cost is low,
The advantages of not having secondary pollution and enjoy favor, but aniline sewage biodegradability difference the characteristics of so that biological treatment effect is not
Substantially, colority of water is produced without significant change.Use hypochlorite oxidation technology, it is necessary to adjust pH value using strong acid, highly basic and reach
Optimum reaction condition, strong acid and highly basic are larger on site environment, personnel health's influence to equipment installation seriously corroded.Current ring
Scientific research more active field in border is high-level oxidation technology, and its mechanism is produced in aqueous based on hydroxyl radical free radical
Strong oxidizing property free radical, fast decoupled persistent organic pollutants remove COD and TOC, reduce colourity.Conventional has ozone oxygen
Change method, supercritical Water Oxidation Technology, electrochemical reducing, Fenton reagent method etc..Ozonation reaction rate is fast, clearance
Height, but consumption electricity is big, processing cost is high, ozone poorly water-soluble and itself has toxicity, and easily operating personnel are caused harm.It is super
Although what critical oxidation technology can be rapidly and efficiently removes toxic organicses in water removal, the method is high in use
Pressure reactor corrosion is serious, limits its commercial Application.
The content of the invention
The invention aims to solve technical problem present in prior art, there is provided a kind of to high in aniline sewage
Colourity, aniline and COD have the aniline sewage decolorizing treatment agent of unique removal effect.
Another object of the present invention is to provide for preparation method and the user of a kind of aniline sewage decolorizing treatment agent
Method.
In order to achieve the above object, the present invention uses following technical scheme：
A kind of aniline sewage decolorizing treatment agent, including reducing agent, decolorising agent and synergist, the reducing agent, decolorising agent and
Weight ratio when synergist is used is 1:0.67-1.5: 0.67-1.5；
Wherein, the reducing agent is consisted of the following components in percentage by weight：Alum 5%-10%, magnesium sulfate 5%-
10%th, aluminium polychloride 13%-18%, water 67%-73%；
The decolorising agent is consisted of the following components in percentage by weight：Oxirane 5%-10%, triethanolamine 5%-10%, powder
Last activated carbon 20%-25%, water 60%-65%；
The synergist is consisted of the following components in percentage by weight：Polyacrylamide 0.1%-0.2%, Exsiccated Ammonium Alum 5%-
10%th, water 89.9%-94.8%.
A kind of method of the aniline sewage decolorizing treatment agent prepared described in claim 1, the method is comprised the following steps：
A, prepare reducing agent：To water is added in reactor, alum is proportionally added into while stirring, be to slowly warm up to 45
Stirred after DEG C at least 30 minutes；To being slowly added to magnesium sulfate, aluminium polychloride in proportion while stirring in above-mentioned solution；Will be above-mentioned
Solution is heated to 45-60 DEG C of at least stirring and is cooled to normal temperature after 1.5 hours；Finished product range estimation is weak yellow liquid, pH value 4.6-
4.7。
B, prepare decolorising agent：To adding water in reactor, after oxirane and triethanolamine are proportionally added into while stirring
70-85 DEG C is heated to, normal temperature is cooled to after at least stirring 2 hours；Lived to powder is proportionally added into above-mentioned solution while stirring
Property charcoal and be sufficiently mixed, be cooled to normal temperature after at least stirring 1 hour；Finished product range estimation is black liquor, pH value 7.2-7.7.
C, prepare synergist：To water is added in reactor, polyacrylamide, stirring at least 30 are proportionally added into while stirring
Minute；To be slowly added in proportion while stirring in above-mentioned solution alum and at least stir 1.5 hours, speed of agitator control
In below 30rpm；Finished product range estimation is colourless transparent liquid, pH value 6.8-7.3.
A kind of method of the aniline sewage decolorizing treatment agent described in usage right requirement 1, the method is comprised the following steps：To
The front end of aniline sewage pipe-line mixer adds reducing agent；Ensureing that the reducing agent residence time is more than 10 seconds and well-mixed feelings
Under condition, decolorising agent is added in the solution for obtaining suddenly one step up；Ensureing the decolorising agent residence time more than 20 seconds and be sufficiently mixed
In the case of, synergist is added in the solution for obtaining suddenly one step up, the residence time is more than 5min and is sufficiently mixed；By previous step
The rapid solution left standstill layering for obtaining, upper strata is clear liquid, and lower floor is solid flocculating setting thing.
The present invention has the advantages that compared with the prior art：Aniline sewage inorganic agent of the invention by reducing agent,
Mutual cooperation between decolorising agent and each component of synergist has unique removal effect to high chroma, aniline and COD in aniline sewage
Really, chroma in waste water, COD, suspension, aniline content are substantially greatly decreased after removal.Aniline sewage inorganic agent of the invention is non-easily
Explosive, non-strong acid and strong base is fired, it is non-volatile, it is nontoxic, use safety.Meanwhile, the use of the aniline sewage inorganic agent that the present invention is provided
Method is reliable and stable, is easy to management, after carrying out source treatment to aniline sewage, solves the impact to terminal sewage farm,
The stable operation in sewage farm and the qualified discharge of waste water are ensure that, slightly transformation is carried out to original equipment can just process aniline
Sewage, reduces processing cost.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
A kind of aniline sewage decolorizing treatment agent, including reducing agent, decolorising agent and synergist, reducing agent, decolorising agent and synergy
Weight ratio when agent is used is 1:0.67-1.5: 0.67-1.5；Wherein, reducing agent is consisted of the following components in percentage by weight：
Alum 5%-10%, magnesium sulfate 5%-10%, aluminium polychloride 13%-18%, water 67%-73%；Decolorising agent is by following weight percent
The component composition of ratio：Oxirane 5%-10%, triethanolamine 5%-10%, Powdered Activated Carbon 20%-25%, water 60%-65%；Synergist
Consist of the following components in percentage by weight：Polyacrylamide 0.1%-0.2%, Exsiccated Ammonium Alum 5%-10%, water 89.9%-94.8%.
The specific preparation method of reducing agent is as follows：
Reducing agent component proportion is as shown in Table 1.
Table one：Reducing agent component proportion table（Unit：Gram）
Reducing agent prepares embodiment 1：By data in the formula of table one 1, to 67 grams of water are added in reactor, put into while stirring
5 grams of alums, stir at least 30 minutes after being to slowly warm up to 45 DEG C；To 10 grams of sulphur are slowly added in above-mentioned solution while stirring
Sour magnesium, 18 grams of aluminium polychlorides；45 DEG C are heated the solution to, normal temperature is cooled to after at least stirring 1.5 hours.Finished product is estimated
It is weak yellow liquid, pH value 4.7.
Reducing agent prepares embodiment 2：By data in the formula of table one 2, to 73 grams of water are added in reactor, put into while stirring
6 grams of alums, stir at least 30 minutes after being to slowly warm up to 45 DEG C；To 8 grams of sulphur are slowly added in above-mentioned solution while stirring
Sour magnesium, 13 grams of aluminium polychlorides；60 DEG C are heated the solution to, normal temperature is cooled to after at least stirring 1.5 hours.Finished product is estimated
It is weak yellow liquid, pH value 4.6.
Reducing agent prepares embodiment 3：By data in the formula of table one 3, to 72 grams of water are added in reactor, put into while stirring
7 grams of alums, stir at least 30 minutes after being to slowly warm up to 45 DEG C；To 8 grams of sulphur are slowly added in above-mentioned solution while stirring
Sour magnesium, 13 grams of aluminium polychlorides；50 DEG C are heated the solution to, normal temperature is cooled to after at least stirring 1.5 hours.Finished product is estimated
It is weak yellow liquid, pH value 4.6.
Reducing agent prepares embodiment 4：By data in the formula of table one 4, to 71 grams of water are added in reactor, put into while stirring
8 grams of alums, stir at least 30 minutes after being to slowly warm up to 45 DEG C；To 6 grams of sulphur are slowly added in above-mentioned solution while stirring
Sour magnesium, 15 grams of aluminium polychlorides；55 DEG C are heated the solution to, normal temperature is cooled to after at least stirring 1.5 hours.Finished product is estimated
It is weak yellow liquid, pH value 4.7.
Reducing agent prepares embodiment 5：By data in the formula of table one 5, to 69 grams of water are added in reactor, put into while stirring
9 grams of alums, stir at least 30 minutes after being to slowly warm up to 45 DEG C；To 7 grams of sulphur are slowly added in above-mentioned solution while stirring
Sour magnesium, 15 grams of aluminium polychlorides；45 DEG C are heated the solution to, normal temperature is cooled to after at least stirring 1.5 hours.Finished product is estimated
It is weak yellow liquid, pH value 4.6.
Reducing agent prepares embodiment 6：By data in the formula of table one 6, to 72 grams of water are added in reactor, put into while stirring
10 grams of alums, stir at least 30 minutes after being to slowly warm up to 45 DEG C；To 5 grams of sulphur are slowly added in above-mentioned solution while stirring
Sour magnesium, 13 grams of aluminium polychlorides；60 DEG C are heated the solution to, normal temperature is cooled to after at least stirring 1.5 hours.Finished product is estimated
It is weak yellow liquid, pH value 4.6.
The specific preparation method of decolorising agent is as follows：
Decolorising agent component proportion is as shown in Table 2.
Table two：Decolorising agent component proportion table（Unit：Gram）
Decolorising agent prepares embodiment 1：By data in the formula of table two 1, to 60 grams of water are added in reactor, put into while stirring
70 DEG C are heated to after 5 grams of oxirane and 10 grams of triethanolamines, are continued stirring until and is cooled to normal temperature after 2 hours less；To above-mentioned molten
25 grams of Powdered Activated Carbons are added in liquid and is sufficiently mixed, normal temperature is cooled to after at least stirring 1 hour；Finished product range estimation is black
Liquid, pH value 7.7.
Decolorising agent prepares embodiment 2：By data in the formula of table two 2, to 62 grams of water are added in reactor, put into while stirring
80 DEG C are heated to after 6 grams of oxirane and 9 grams of triethanolamines, are continued stirring until and is cooled to normal temperature after 2 hours less；To above-mentioned solution
23 grams of Powdered Activated Carbons of middle addition are simultaneously sufficiently mixed, and normal temperature is cooled to after at least stirring 1 hour；Finished product range estimation is black liquid
Body, pH value 7.7.
Decolorising agent prepares embodiment 3：By data in the formula of table two 3, to 61 grams of water are added in reactor, put into while stirring
85 DEG C are heated to after 7 grams of oxirane and 8 grams of triethanolamines, are continued stirring until and is cooled to normal temperature after 2 hours less；To above-mentioned solution
24 grams of Powdered Activated Carbons of middle addition are simultaneously sufficiently mixed, and normal temperature is cooled to after at least stirring 1 hour；Finished product range estimation is black liquid
Body, pH value 7.6.
Decolorising agent prepares embodiment 4：By data in the formula of table two 4, to 65 grams of water are added in reactor, put into while stirring
70 DEG C are heated to after 8 grams of oxirane and 7 grams of triethanolamines, are continued stirring until and is cooled to normal temperature after 2 hours less；To above-mentioned solution
20 grams of Powdered Activated Carbons of middle addition are simultaneously sufficiently mixed, and normal temperature is cooled to after at least stirring 1 hour；Finished product range estimation is black liquid
Body, pH value 7.5.
Decolorising agent prepares embodiment 5：By data in the formula of table two 5, to 62 grams of water are added in reactor, put into while stirring
80 DEG C are heated to after 9 grams of oxirane and 6 grams of triethanolamines, are continued stirring until and is cooled to normal temperature after 2 hours less；To above-mentioned solution
23 grams of Powdered Activated Carbons of middle addition are simultaneously sufficiently mixed, and normal temperature is cooled to after at least stirring 1 hour；Finished product range estimation is black liquid
Body, pH value 7.5.
Decolorising agent prepares embodiment 6：By data in the formula of table two 6, to 60 grams of water are added in reactor, put into while stirring
80 DEG C are heated to after 10 grams of oxirane and 5 grams of triethanolamines, are continued stirring until and is cooled to normal temperature after 2 hours less；To above-mentioned molten
25 grams of Powdered Activated Carbons are added in liquid and is sufficiently mixed, normal temperature is cooled to after at least stirring 1 hour；Finished product range estimation is black
Liquid, pH value 7.2.
The specific preparation method of synergist is as follows：
Boosting components are matched as shown in Table 3.
Table three：Boosting components match table（Unit：Gram）
Synergist prepares embodiment 1：Data in being formulated 1 by table three, to 89.90 grams of water are added in reactor, while stirring
0.10 gram of polyacrylamide of input, stirs at least 30 minutes；To 10 grams of alums are slowly added in above-mentioned solution while stirring
And at least starting stirring 1.5 hours, speed of agitator is controlled in below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 6.9.
Synergist prepares embodiment 2：Data in being formulated 2 by table three, to 90.90 grams of water are added in reactor, while stirring
0.10 gram of polyacrylamide of input, stirs at least 30 minutes；To 9 grams of alums are slowly added in above-mentioned solution while stirring simultaneously
At least start stirring 1.5 hours, speed of agitator is controlled in below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 6.8.
Synergist prepares embodiment 3：Data in being formulated 3 by table three, to 91.85 grams of water are added in reactor, while stirring
0.15 gram of polyacrylamide of input, stirs at least 30 minutes；To 8 grams of alums are slowly added in above-mentioned solution while stirring simultaneously
At least start stirring 1.5 hours, speed of agitator is controlled in below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.0.
Synergist prepares embodiment 4：Data in being formulated 4 by table three, to 92.85 grams of water are added in reactor, while stirring
0.15 gram of polyacrylamide of input, stirs at least 30 minutes；To 7 grams of alums are slowly added in above-mentioned solution while stirring simultaneously
At least start stirring 1.5 hours, speed of agitator is controlled in below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.2.
Synergist prepares embodiment 5：Data in being formulated 5 by table three, to 93.80 grams of water are added in reactor, while stirring
0.20 gram of polyacrylamide of input, stirs at least 30 minutes；To 6 grams of alums are slowly added in above-mentioned solution while stirring simultaneously
At least start stirring 1.5 hours, speed of agitator is controlled in below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.3.
Synergist prepares embodiment 6：Data in being formulated 6 by table three, to 94.80 grams of water are added in reactor, while stirring
0.20 gram of polyacrylamide of input, stirs at least 30 minutes；To 5 grams of alums are slowly added in above-mentioned solution while stirring simultaneously
At least start stirring 1.5 hours, speed of agitator is controlled in below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.2.
Aniline sewage decolorizing treatment agent application method：Reducing agent is added to the front end of aniline sewage pipe-line mixer；Protecting
The card reducing agent residence time, more than 10 seconds and in the case of being sufficiently mixed, decolorising agent is added in the solution for obtaining suddenly one step up；
In the case where the guarantee decolorising agent residence time is more than 20 seconds and is sufficiently mixed, synergy is added in the solution for obtaining suddenly one step up
Agent, the residence time is more than 5min and is sufficiently mixed；The solution left standstill layering that previous step is obtained, upper strata is clear liquid, and lower floor is
Solid flocculating setting thing.Weight ratio when reducing agent, decolorising agent and synergist are used when using is 1:0.67-1.5: 0.67-
1.5。
Influence experiment of the addition to treatment effect when reducing agent, decolorising agent and synergist are used：
Certain organic factory's aniline sewage 1000mL is taken in beaker, according to above-mentioned aniline sewage decolorizing treatment agent application method according to
It is secondary to add appropriate reducing agent, decolorising agent, synergist in aniline sewage, observe chroma in waste water and suspension decrease speed, examination
Test as shown in Table 4.
Table four：Influence of the addition to treatment effect when reducing agent, decolorising agent and synergist are used
Result of the test：
(1) aniline sewage is obvious from reducing agent, decolorising agent and synergist treatment aniline sewage effect, sewage in 10 seconds
Beaker bottom, Colority of Sewage Water reduction are sunken under middle suspension is quick.Supernatant is colourless after placing 20 minutes or light yellow clear liquid
Body, the supernatant in beaker is very clear with bottom precipitum line of demarcation.
(2) by considering：The optimal addition of aniline sewage of 1000 mL is processed for the mL of reducing agent 5.0, decolorising agent
5.0mL, synergist 5.0mL.
Aniline sewage decolorizing treatment agent removal effect is tested：
Choose reducing agent and prepare reducing agent obtained in embodiment 3, decolorising agent, synergy obtained in decolorising agent preparation embodiment 3
Agent prepares synergist obtained in embodiment 3 and, as the medicament of tests below, continuous commerical test in 7 days is carried out to aniline sewage, and
Top waste clear solution detection pH, colourity, aniline content, COD contents are taken, and determines colourity, aniline, the abjection of COD in aniline sewage
Rate.Result of the test is as shown in Table 5.
Table five：The continuous 7 days result of the tests of experiment are carried out to aniline sewage
Removal efficiency draws as follows in the middle of above test data：
Result of the test：Aniline sewage decolorizing treatment agent for aniline sewage is matched somebody with somebody jointly in reducing agent, decolorising agent, synergist
Cooperation solves the exceeded phenomenon of aniline in aniline sewage high chroma, water, COD, the average removal efficiency of colourity in aniline sewage under using
Up to 99%, the average extrusion rate 88.7% of aniline, the average extrusion rate 78.6% of COD.
Above-described is only the preferred embodiments of the present invention, it should be pointed out that come for one of ordinary skill in the art
Say, under technical inspiration provided by the present invention, as the common knowledge of chemical field, can also make other equivalent modifications and
Improve, also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of aniline sewage decolorizing treatment agent, it is characterised in that：Including reducing agent, decolorising agent and synergist, the reducing agent,
Weight ratio when decolorising agent and synergist are used is 1:0.67-1.5: 0.67-1.5；
Wherein, the reducing agent is consisted of the following components in percentage by weight：It is alum 5%-10%, magnesium sulfate 5%-10%, poly-
Close aluminium chloride 13%-18%, water 67%-73%；
The decolorising agent is consisted of the following components in percentage by weight：Oxirane 5%-10%, triethanolamine 5%-10%, powder are lived
Property charcoal 20%-25%, water 60%-65%；
The synergist is consisted of the following components in percentage by weight：Polyacrylamide 0.1%-0.2%, alum 5%-10%,
Water 89.9%-94.8%.
2. a kind of method of the aniline sewage decolorizing treatment agent prepared described in claim 1, it is characterised in that the method include with
Lower step：
A, prepare reducing agent：
I is proportionally added into alum while stirring to water is added in reactor, and at least 30 points are stirred after being to slowly warm up to 45 DEG C
Clock；
II to being slowly added to magnesium sulfate, aluminium polychloride in proportion while stirring in above-mentioned solution；
III heats the solution to 45-60 DEG C of at least stirring and is cooled to normal temperature after 1.5 hours；
B, prepare decolorising agent：
I is heated to 70-85 DEG C, extremely to water is added in reactor after being proportionally added into oxirane and triethanolamine while stirring
Normal temperature is cooled to after stirring 2 hours less；
II is cooled down to being proportionally added into Powdered Activated Carbon in above-mentioned solution while stirring and being sufficiently mixed after at least stirring 1 hour
To normal temperature；
C, prepare synergist：
I is proportionally added into polyacrylamide while stirring to water is added in reactor, stirs at least 30 minutes；
II to be slowly added in proportion while stirring in above-mentioned solution alum and at least stir 1.5 hours, speed of agitator control
System is in below 30rpm.
3. the method for the aniline sewage decolorizing treatment agent described in a kind of usage right requirement 1, it is characterised in that the method include with
Lower step：
I adds reducing agent to the front end of aniline sewage pipe-line mixer；
II adds in the case where the guarantee reducing agent residence time is more than 10 seconds and is sufficiently mixed in the solution for obtaining suddenly one step up
Enter decolorising agent；
III adds in the case where the guarantee decolorising agent residence time is more than 20 seconds and is sufficiently mixed in the solution for obtaining suddenly one step up
Enter synergist, the residence time is more than 5min and is sufficiently mixed；
The solution left standstill layering that IV obtains previous step, upper strata is clear liquid, and lower floor is solid flocculating setting thing.
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| CN110877923A (en) * | 2018-09-06 | 2020-03-13 | 中国石油天然气股份有限公司 | Composite flocculant for treating refinery sewage and treatment method of refinery sewage |
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| CN102398952A (en) * | 2010-09-13 | 2012-04-04 | 石爱萍 | Composite water anti-foaming agent |
| CN102464389A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof |
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| CN103755061B (en) * | 2013-12-30 | 2015-02-25 | 广西利达磷化工有限公司 | Comprehensive utilization method of phosphoric acid and phosphate industrial wastewater |
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