CN106745380A - A kind of polyvinyl alcohol modification aluminium polychloride and preparation method and application - Google Patents
A kind of polyvinyl alcohol modification aluminium polychloride and preparation method and application Download PDFInfo
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- CN106745380A CN106745380A CN201611159697.2A CN201611159697A CN106745380A CN 106745380 A CN106745380 A CN 106745380A CN 201611159697 A CN201611159697 A CN 201611159697A CN 106745380 A CN106745380 A CN 106745380A
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- polyvinyl alcohol
- cleaning 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/56—Chlorides
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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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
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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
- 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
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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
- C02F1/5254—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using magnesium compounds and phosphoric acid for removing ammonia
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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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The present invention relates to a kind of polyvinyl alcohol modification aluminium polychloride, including following raw material components：Reclaim 5~20 parts of level cleaning agent；100~200 parts of waste hydrochloric acid；45~120 parts of aluminium mud；0.5~18 part of iron cement；7~23 parts of Nacl；0.2~5 part of polyacrylamide.Wherein, described recovery level cleaning agent is the discarded object after automobile washing, and described Nacl is the industrial by-products for not adding treatment.The alumina content of polyvinyl alcohol modification aluminium polychloride prepared by the invention is 5%~50%, this technique has production technology short, raw material sources are wide, low cost, it is pollution-free, the pollution caused by aluminium mud, iron cement, Nacl, cleaning agent film and handling problems can be effectively solved, prepared polyvinyl alcohol modification aluminium polychloride has excellent storage stability, clean water treatment effect.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of polyvinyl alcohol modification aluminium polychloride and its preparation side
Method and application.
Background technology
Commonly referred to as water purification agent or coagulant, it is between AlCl to aluminium polychloride3With Al (OH)3Between it is a kind of water-soluble
Property inorganic polymer, in hydrolytic process, aluminium polychloride with occur cohesion, build bridge, absorption and precipitation etc. physics
Chemical process.Compared with traditional inorganic coagulant, the structure of aluminium polychloride is made up of the changeable polycarboxy complex compound of form,
Flocculation sediment speed is fast, is applicable pH value wide ranges, and to pipe-line equipment non-corrosiveness, purifying water effect substantially, can effectively in branch water removal
The heavy metal ion such as chromaticness SS, COD, BOD and arsenic, mercury, the product is widely used in drinking water, industrial water and sewage disposal neck
Domain.
At present, aluminium polychloride can also further improve at aspects such as storage stability, alumina content, costs.
The content of the invention
The invention provides a kind of polyvinyl alcohol modification aluminium polychloride, it has at excellent storage stability, water purification
Reason effect.
Realize the technical scheme is that, a kind of polyvinyl alcohol modification aluminium polychloride, by recovery level cleaning agent, abraum salt
Acid, aluminium mud, iron cement, Nacl and polyacrylamide composition, wherein reclaiming level cleaning agent, waste hydrochloric acid, aluminium mud, iron cement, Nacl
It is 5~20 with the weight ratio of polyacrylamide：100~200：45~120：0.5~18：7~230.2~5；
The recovery level cleaning agent is obtained by the following method：
It is 90~115 DEG C in temperature by discarded cleaning agent film to heat, while stirring obtains discarded cleaning agent coating solution；
Then inorganic agent is added, maintenance reaction temperature is 110~140 DEG C, and stirring obtains uniform cleaning agent mixed solution,
Wherein inorganic agent be one or two in Sodium Polyacrylate or sodium carboxymethylcellulose with aluminium polychloride, polyacrylamide,
One or more in PAFC, aluminum sulfate, alum are mixed, and the weight ratio for accounting for the cleaning agent mixed solution is
0.1%~2%；
Cleaning agent mixed solution is stood, filtering obtains supernatant and filter residue；By supernatant centrifugal filtration again, collection it is clear
Clear solution is recovery level cleaning agent, and polyvinyl alcohol content is more than 2% in the recovery level cleaning agent.
Further, described Nacl be not plus treatment industrial by-products, including sodium chloride, magnesium chloride, magnesium nitrate,
In zinc chloride, copper chloride, copper sulphate, zinc sulfate, iron chloride, frerrous chloride, aluminum sulfate, sodium sulfite, potassium chloride, vulcanized sodium
One or more；
The aluminum content of described aluminium mud is 60%~97%；
The iron content of described iron cement is 50%~94%；
The content of hydrochloric acid of described waste hydrochloric acid is 16%~36%, also including in sulfuric acid, phosphoric acid, acetic acid, sulfurous acid, formic acid
One or more；
Alumina content is 5%~50% (wt.%) in described polyvinyl alcohol modification polymeric aluminum chlorides solution, solution
Viscosity is more than 1000cps.
Present invention also offers the preparation method of above-mentioned polyvinyl alcohol modification aluminium polychloride, the preparation method has production
Technique is short, and raw material sources are wide, and low cost is pollution-free, can effectively solve caused by aluminium mud, iron cement, Nacl, cleaning agent film
Pollution and handling problems.
Specifically include following steps：
Step one, will reclaim after level cleaning agent is completely dissolved at 85~105 DEG C, addition waste hydrochloric acid, Nacl, polyacrylamide
Amine, maintenance reaction temperature is 85~105 DEG C, and 0.3~1h of stirring reaction under 75~120r/min velocity conditions is obtained mixing molten
Liquid；Wherein reclaiming level cleaning agent, waste hydrochloric acid, Nacl, the weight ratio of polyacrylamide is：5~20：100~200：7~23：
0.2~5.
Step 2, by aluminium mud, iron cement according to portion rate be 45~120：0.5~18 point 5~6 times added to step one it is made
Mixed solution in, maintenance reaction temperature be 85~105 DEG C, mixing speed be 75~120r/min under the conditions of reaction 0.3~
1h, obtains final product the polyvinyl alcohol modification aluminium polychloride.
The recovery level cleaning agent is obtained by the following method：
It is 90~115 DEG C in temperature by discarded cleaning agent film to heat, while stirring obtains discarded cleaning agent coating solution；
Then inorganic agent is added, maintenance reaction temperature is 110~140 DEG C, and stirring obtains uniform cleaning agent mixed solution,
Wherein inorganic agent be one or two in Sodium Polyacrylate or sodium carboxymethylcellulose with aluminium polychloride, polyacrylamide,
One or more in PAFC, aluminum sulfate, alum are mixed, and the weight ratio for accounting for the cleaning agent mixed solution is
0.1%~2%；
Cleaning agent mixed solution is stood, filtering obtains supernatant and filter residue；By supernatant centrifugal filtration again, collection it is clear
Clear solution is recovery level cleaning agent, and polyvinyl alcohol content is more than 2% in the recovery level cleaning agent.
It is to be stirred in the case where reaction temperature is for 85~130 DEG C by film forming agent, modification strengthening agent and water wherein to discard into cleaning agents of membrane
The cleaning agent that obtains of uniformly sieving is mixed to be obtained using rear recovery, wherein the weight ratio of film forming agent, modification strengthening agent and water be 10~
60：0.1~20：10~200, the modification strengthening agent is in reaction temperature by reinforcing agent, polyvinyl alcohol, surfactant and water
90~120 DEG C stir and obtain final product, and wherein the weight ratio of reinforcing agent, polyvinyl alcohol, surfactant and water is 100：35~60：
3~10：50~150.
Detection polyvinyl alcohol modification aluminium polychloride, its alumina content is 5%~50% (wt.%), and viscosity is more than
1000cps。
The invention allows for a kind of application of polyvinyl alcohol modification aluminium polychloride in sewage disposal, polyvinyl alcohol changes
Property addition of the aluminium polychloride in sewage disposal be 0.1%~5% (wt.%).
Compared with prior art, its remarkable advantage is the present invention：
1st, aluminium polychloride and Nacl are added in the present invention, polymeric aluminum chlorides solution has impurity, is held during storage
Easily because lamination occurs in impurity flocculation, the storage stability of aluminium polychloride is influenceed；Nacl is not only difficult to treatment, Er Qiehan
There is the material of many pollution environment, but, Nacl is added in polymeric aluminum chlorides solution, aluminium polychloride can be improved
Density, to a certain extent, can not only extend the stable storing cycle of aluminium polychloride, can also utilize aluminium polychloride solution
The pollution problem that certainly Nacl is produced, reaches the purification removal of impurities of Nacl；
2nd, the present invention with the addition of recovery level cleaning agent, be more than 2% polyvinyl alcohol containing content in recovery level cleaning agent, not only
The viscosity of polymeric aluminum chlorides solution can be improved, flocculation of the aluminium polychloride during storage is reduced, and then improve poly-
The storage stability of aluminium chloride is closed, also film is formed because of the oh group in its structure and in water surface, with aluminium polychloride
Synergy is played, the sewage disposal performance of aluminium polychloride is improved；
3rd, polyacrylamide is also added in the present invention, it has excellent sewage disposal performance, can effectively improve poly-
Close the wastewater treatment efficiency of aluminium chloride；
4th, aluminium mud and waste hydrochloric acid are make use of in the present invention, the aluminium ion that aluminium mud is formed with abraum salt acid reaction is water-soluble in high temperature
Aluminum hydroxide sol can be formed in liquid, aluminum hydroxide sol can accelerate the formation of aluminium polychloride and shorten reaction process and reaction
Time；
5th, aluminium mud and iron cement are also used in the present invention, they belong to solid waste, is metallic aluminium, metal ironworking product
In raw slag or powder, or aluminium class, iron class recovery process be catalyzed produced by containing aluminium, iron substance, utilize it as raw material production
Aluminium polychloride, it is not only wide, cheap with raw material sources, can also solve aluminium mud and iron cement Placement Problems while,
Industrial sewage purification is solved the problems, such as using its product, doped portion iron in aluminium polychloride can improve its purifying water effect.
Specific embodiment
During specific implementation, Nacl can be sodium chloride, magnesium chloride, magnesium nitrate, zinc chloride, copper chloride, copper sulphate, sulfuric acid
Zinc, iron chloride, frerrous chloride, aluminum sulfate, sodium sulfite, potassium chloride, vulcanized sodium etc. are in the industrial by-products for adding treatment
Plant or several；The aluminium content of aluminium mud is 60%~97%；The iron content of iron cement is 50%~94%；The content of hydrochloric acid of waste hydrochloric acid is
16%~36%, also including one or more in sulfuric acid, phosphoric acid, acetic acid, sulfurous acid, formic acid.With reference to embodiment to this
Invention is further described.These embodiments are only that typical case of the invention is described, but the invention is not restricted to this.Following implementations
Test method used unless otherwise specified, is conventional method in example, the raw material for being used, reagent etc., unless otherwise specified,
Being can be from the raw material and reagent that routinely the commercial sources such as purchased in market are obtained.
Embodiment 1
A kind of polyvinyl alcohol modification aluminium polychloride, its preparation method is comprised the following steps：
Level cleaning agent, 140 parts of waste hydrochloric acids, 15 parts of industrial chlorinations sodium, 2.5 parts of polyacrylamides are reclaimed added to instead by 15 parts
It it is 97 DEG C in reaction temperature in answering kettle, mixing speed is to react 0.7h under the conditions of 95r/min；By 72 parts of aluminium mud, 4 parts of iron cements point 5
Secondary is 97 DEG C in reaction temperature added in reactor, and mixing speed is obtained final product described poly- to react 0.7h under the conditions of 95r/min
Modified vinyl alcohol aluminium polychloride.
1kg wastewater samples are taken, to 2% (wt.%) polyvinyl alcohol modification aluminium polychloride is added in waste water, is stirred vigorously
2min, stands 5min, obtains clarified supernatant.
Embodiment 2
A kind of polyvinyl alcohol modification aluminium polychloride, its preparation method is comprised the following steps：
Level cleaning agent, 100 parts of waste hydrochloric acids, 7 parts of industrial chlorinations zinc, 0.2 part of polyacrylamide added to reaction are reclaimed by 5 parts
In kettle, reaction temperature be 85 DEG C, mixing speed be 120r/min under the conditions of react 1h；By 45 parts of aluminium mud, 0.5 part of iron cement, 7 parts
Industrial chlorinations zinc is added in reactor, is 85 DEG C in reaction temperature, and mixing speed is obtained final product to react 1h under the conditions of 120r/min
The polyvinyl alcohol modification aluminium polychloride.
1kg wastewater samples are taken, to 0.1% (wt.%) polyvinyl alcohol modification aluminium polychloride is added in waste water, is stirred vigorously
5min, stands 45min, obtains clarified supernatant.
Embodiment 3
A kind of polyvinyl alcohol modification aluminium polychloride, its preparation method is comprised the following steps：
Level cleaning agent, 200 parts of waste hydrochloric acids, 23 parts of industrial cupric sulfates, 5 parts of polyacrylamides added to reaction are reclaimed by 20 parts
In kettle, reaction temperature be 105 DEG C, mixing speed be 75r/min under the conditions of react 0.3h；By 120 parts of aluminium mud, 18 parts of iron cements,
23 parts of industrial cupric sulfates point are added in reactor for 6 times, are 105 DEG C in reaction temperature, and mixing speed is anti-under the conditions of 75r/min
0.3h is answered, the polyvinyl alcohol modification aluminium polychloride is obtained final product.
1kg wastewater samples are taken, to 5% (wt.%) polyvinyl alcohol modification aluminium polychloride is added in waste water, is stirred vigorously
3min, stands 2min, obtains clarified supernatant.
Embodiment 4
A kind of polyvinyl alcohol modification aluminium polychloride, its preparation method is comprised the following steps：
Level cleaning agent, 130 parts of waste hydrochloric acids, 10 parts of industrial chlorinations iron, 4 parts of polyacrylamides added to reaction are reclaimed by 10 parts
In kettle, reaction temperature be 90 DEG C, mixing speed be 85r/min under the conditions of react 0.7h；80 parts of aluminium mud, 5 parts of iron cements are divided 5 times
It it is 90 DEG C in reaction temperature added in reactor, mixing speed obtains final product the poly- second to react 0.7h under the conditions of 85r/min
Enol modified polyaluminium chloride.
1kg wastewater samples are taken, to 3% (wt.%) polyvinyl alcohol modification aluminium polychloride is added in waste water, is stirred vigorously
2min, stands 4min, obtains clarified supernatant.
Embodiment 5
A kind of polyvinyl alcohol modification aluminium polychloride, its preparation method is comprised the following steps：
Level cleaning agent, 180 parts of waste hydrochloric acids, 15 parts of industrial sodium sulfites, 2 parts of polyacrylamides are reclaimed added to instead by 15 parts
It it is 100 DEG C in reaction temperature in answering kettle, mixing speed is to react 0.4h under the conditions of 100r/min；By 100 parts of aluminium mud, 15 parts of iron
Mud point is added in reactor for 6 times, is 100 DEG C in reaction temperature, and mixing speed is obtained final product to react 0.4h under the conditions of 100r/min
The polyvinyl alcohol modification aluminium polychloride.
1kg wastewater samples are taken, to 4% (wt.%) polyvinyl alcohol modification aluminium polychloride is added in waste water, is stirred vigorously
5min, stands 3min, obtains clarified supernatant.
Embodiment 6
A kind of polyvinyl alcohol modification aluminium polychloride, its preparation method is comprised the following steps：
Level cleaning agent, 160 parts of waste hydrochloric acids, 20 parts of industrial chlorinations copper, 1 part of polyacrylamide added to reaction are reclaimed by 13 parts
In kettle, reaction temperature be 90 DEG C, mixing speed be 110r/min under the conditions of react 0.8h；By 90 parts of aluminium mud, 10 parts of iron cements point 5
Secondary is 90 DEG C in reaction temperature added in reactor, and mixing speed is obtained final product described poly- to react 0.8h under the conditions of 110r/min
Modified vinyl alcohol aluminium polychloride.
1kg wastewater samples are taken, to 1% (wt.%) polyvinyl alcohol modification aluminium polychloride is added in waste water, is stirred vigorously
6min, stands 10min, obtains clarified supernatant.
Reference examples 1
In this reference examples, it is not added with reclaiming level cleaning agent, other components and system in polyvinyl alcohol modification aluminium polychloride formula
Preparation Method is same as Example 1.
Reference examples 2
In this reference examples, iron cement is not added with polyvinyl alcohol modification aluminium polychloride formula, other components and preparation method with
Embodiment 1 is identical.
Reference examples 3
In this reference examples, polyacrylamide is not added with polyvinyl alcohol modification aluminium polychloride formula, other components with prepare
Method is same as Example 1.
Reference examples 4
In this reference examples, Nacl is not added with polyvinyl alcohol modification aluminium polychloride formula, other components and preparation method
It is same as Example 1.
The storage stability of polyvinyl alcohol modification aluminium polychloride, oxidation to embodiment 1~6 and obtained in reference examples 1~4
The performances such as aluminium content are tested, and method of testing is as follows, and test result see the table below 1.
(1) storage stability
Judged by polymeric aluminum chlorides solution separation time；
(2) aluminium polychloride performance
Tested by GB 15892-2009 standards；
(3) COD
Tested by GB/T 29599-2013 standards.
The performance measurement of the embodiment 1~6 of table 1 and polyvinyl alcohol modification aluminium polychloride obtained in reference examples 1~4
Note：The COD of waste water former state is 1000mg/L.
The above is the preferred embodiment of the invention, it is noted that for those skilled in the art
For, on the premise of the inventive principle is not departed from, some improvements and modifications can also be made, these improvements and modifications are also considered as
The protection domain of the invention.
In addition to the implementation, the present invention can also have other embodiment.All use equivalents or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (7)
1. a kind of polyvinyl alcohol modification aluminium polychloride, it is characterised in that the polyvinyl alcohol modification aluminium polychloride is by reclaiming
Level cleaning agent, waste hydrochloric acid, aluminium mud, iron cement, Nacl and polyacrylamide composition, wherein reclaiming level cleaning agent, waste hydrochloric acid, aluminium
The weight ratio of mud, iron cement, Nacl and polyacrylamide is 5~20：100~200：45~120：0.5~18：7~23 0.2
~5；
The recovery level cleaning agent is obtained by the following method：
It is 90~115 DEG C in temperature by discarded cleaning agent film to heat, while stirring obtains discarded cleaning agent coating solution；
Then inorganic agent is added, maintenance reaction temperature is 110~140 DEG C, and stirring obtains uniform cleaning agent mixed solution, wherein
Inorganic agent be one or two in Sodium Polyacrylate or sodium carboxymethylcellulose with aluminium polychloride, polyacrylamide, be polymerized
One or more in aluminium chloride ferrum, aluminum sulfate, alum are mixed, and the weight ratio for accounting for the cleaning agent mixed solution is
0.1%~2%；
Cleaning agent mixed solution is stood, filtering obtains supernatant and filter residue；By supernatant centrifugal filtration again, the clarification of collection is molten
Liquid is recovery level cleaning agent, and polyvinyl alcohol content is more than 2% in the recovery level cleaning agent.
2. polyvinyl alcohol modification aluminium polychloride according to claim 1, it is characterised in that the cleaning agents of membrane of discarding into is
After the cleaning agent use that the sieving that stirred at being 85~130 DEG C in reaction temperature by film forming agent, modification strengthening agent and water is obtained
Recovery is obtained, and wherein the weight ratio of film forming agent, modification strengthening agent and water is 10~60：0.1~20：10~200, the modified increasing
Strong agent is stirred and obtained final product for 90~120 DEG C by reinforcing agent, polyvinyl alcohol, surfactant and water in reaction temperature, wherein increasing
The weight ratio of strong agent, polyvinyl alcohol, surfactant and water is 100：35~60：3~10：50~150.
3. polyvinyl alcohol modification aluminium polychloride according to claim 1, it is characterised in that described Nacl is not for plus place
The industrial by-products of reason, including sodium chloride, magnesium chloride, magnesium nitrate, zinc chloride, copper chloride, copper sulphate, zinc sulfate, iron chloride, chlorine
Change ferrous iron, aluminum sulfate, sodium sulfite, potassium chloride, one or more in vulcanized sodium；
The aluminum content of described aluminium mud is 60%~97%；
The iron content of described iron cement is 50%~94%；
The content of hydrochloric acid of described waste hydrochloric acid is 16%~36%, also including in sulfuric acid, phosphoric acid, acetic acid, sulfurous acid, formic acid
Plant or several.
4. polyvinyl alcohol modification aluminium polychloride according to claim 1, it is characterised in that described polyvinyl alcohol modification gathers
Alumina content is 5%~50% (wt.%) in closing liquor alumini chloridi, and the viscosity of solution is more than 1000cps.
5. in Claims 1 to 4 any polyvinyl alcohol modification aluminium polychloride preparation method, it is characterised in that it is described
Method comprises the following steps：
Step one：To reclaim after level cleaning agent is completely dissolved at 85~105 DEG C, addition waste hydrochloric acid, Nacl, polyacrylamide,
Maintenance reaction temperature is 85~105 DEG C, while stirring, is obtained mixed solution；Wherein reclaim level cleaning agent, waste hydrochloric acid, work
Industry salt, the weight ratio of polyacrylamide are：5~20：100~200：7~23：0.2~5.
Step 2：Aluminium mud, iron cement are added in the mixed solution obtained by step one, maintenance reaction temperature is 85~105 DEG C,
Stir simultaneously, obtain final product polyvinyl alcohol modification aluminium polychloride, wherein aluminium mud, the weight ratio of iron cement are 45~120：0.5~18.
6. the preparation method of polyvinyl alcohol modification aluminium polychloride according to claim 5, it is characterised in that described aluminium mud
With 5~6 additions of iron cement point.
7. a kind of application of the polyvinyl alcohol modification aluminium polychloride in sewage disposal described in claim 1, it is characterised in that institute
Addition of the polyvinyl alcohol modification aluminium polychloride in sewage disposal is stated for 0.1%~5% (wt.%).
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| CN110902707A (en) * | 2019-12-31 | 2020-03-24 | 武宁县伊山口净水剂厂 | Production method of polyaluminium chloride |
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| CN102923746A (en) * | 2012-11-23 | 2013-02-13 | 攀枝花钢城集团有限公司 | Method for preparing polyaluminium chloride (PAC) |
| KR20130048741A (en) * | 2013-04-08 | 2013-05-10 | 이재환 | Liquid curable composition |
| CN105692925A (en) * | 2016-01-19 | 2016-06-22 | 张锐 | Sewage treatment formula and preparation method thereof |
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| JP2005334730A (en) * | 2004-05-25 | 2005-12-08 | Katayama Chem Works Co Ltd | Composition for sludge solidification and sludge solidification method |
| CN102923746A (en) * | 2012-11-23 | 2013-02-13 | 攀枝花钢城集团有限公司 | Method for preparing polyaluminium chloride (PAC) |
| KR20130048741A (en) * | 2013-04-08 | 2013-05-10 | 이재환 | Liquid curable composition |
| CN105692925A (en) * | 2016-01-19 | 2016-06-22 | 张锐 | Sewage treatment formula and preparation method thereof |
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| CN110902707A (en) * | 2019-12-31 | 2020-03-24 | 武宁县伊山口净水剂厂 | Production method of polyaluminium chloride |
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