CN109574119A - Modified alta-mud and its preparation process - Google Patents
Modified alta-mud and its preparation process Download PDFInfo
- Publication number
- CN109574119A CN109574119A CN201811512044.7A CN201811512044A CN109574119A CN 109574119 A CN109574119 A CN 109574119A CN 201811512044 A CN201811512044 A CN 201811512044A CN 109574119 A CN109574119 A CN 109574119A
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- Prior art keywords
- mud
- parts
- bentonite
- modified alta
- sodium
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Abstract
The invention discloses a kind of modified alta-mud and its preparation processes, are related to technical field of sewage, solve the technical issues of bentonite cannot have both absorption and sterilization.Be characterized in that: modified concrete includes the component of following parts by weight: bentonite: 8-10 parts；Sodium carbonate: 0.3-0.5 parts；Polyglutamic acid: 0.8-1 parts；Polyethylene glycol: 0.8-2 parts；Aluminium chloride: 0.13-3 parts；Water: 20-30 parts, using the obtained modified alta-mud of the present invention, modified alta-mud specific surface area increases, and the porosity improves, adsorption capacity enhancing, and has the function of sterilizing water purification.
Description
Technical field
The present invention relates to technical field of sewage, more specifically, it relates to a kind of modified alta-mud and its preparation work
Skill.
Background technique
With industrial expansions such as papermaking, printing and dyeing, the industrial wastewater constantly discharged makes environmental pollution be on the rise.Industry
Waste water has color deep, and COD value is higher, and complicated composition are changeable, is distributed the features such as wide.
Bentonite is used as one kind with montmorillonite clay as main component, because non-equivalence cation replacement easily occurs for its interlayer
And permanent negative electrical charge is generated, and montmorillonite has very big surfaces externally and internally product, make it have higher ion exchange capacity
With very strong adsorption capacity.Therefore it is well suited for for handling industrial wastewater, while bentonite also has reserves as adsorbing medium
Abundant, cheap, preparation method is simple, high treating effect, nontoxic, tasteless, environmental sound, and the dyestuff in processing water
While the advantages that can remove heavy metal ion, but non-modified bentonite only has certain suction-operated, and can not
Its performance is made full use of, and it cannot have the function of absorption and sterilization simultaneously.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of modified alta-mud, by using
Polyethylene glycol and aluminium chloride increase the specific surface area of modified alta-mud, and the porosity improves, adsorption capacity enhancing, by using poly- paddy
Propylhomoserin has the function that sterilize water purification.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of modified alta-mud, the component including following parts by weight:
Bentonite: 8-10 parts；
Sodium carbonate: 0.3-0.5 parts；
Polyglutamic acid: 0.8-1 parts；
Polyethylene glycol: 0.8-2 parts；
Aluminium chloride: 0.13-3 parts；
Water: 20-30 parts.
By using above-mentioned technical proposal, bentonite is used as one kind with montmorillonite clay as main component, because of its interlayer
Non-equivalence cation replacement easily occurs and generates permanent negative electrical charge, and montmorillonite has very big surfaces externally and internally product, makes it
Ion exchange capacity with higher and very strong adsorption capacity can be effectively reduced COD value for handling industrial wastewater.
By using sodium carbonate, has the characteristics that cationic exchangeability using montmorillonite laminated structure, the calcium and magnesium of high price
Ion exchange comes out, and aluminium chloride is then added, and aluminium ion can cement out the sodium ion of sodium montmorillonite interlayer, and aluminium ion enters sodium
It after between montmorillonite layer, hydrolyzes, generates aluminium hydroxide, finally can become alumina molecule pillar by calcining, make montmorillonite
Interlamellar spacing becomes larger, and specific surface area increases, and adsorption capacity is stronger.
By using polyethylene glycol, since moisture scatters and disappears polyethylene glycol in the drying process, polyglycol chain is taken with chain
Companion makes montmorillonite layer spacing expand expansion, facilitates aluminum ions entrance, and finally again by high temperature, burning-off polyethylene glycol is obtained more
Hole modified alta-mud improves the bentonitic porosity.
By using polyglutamic acid, polyglutamic acid have absorption and it is sequestering, can with heavy metal ion formed chela
Object is closed, can be used to dyestuff and the metal ion etc. in absorption effluent, has the function of sterilization and water purification, and it also has biology
Decomposable characteristic will not cause secondary pollution to water body.
Further preferably, the degree of polymerization of the polyethylene glycol is 400~600.
By using above-mentioned technical proposal, the degree of polymerization is higher, and flocculation and adsorption effect are better, but to consider charge
Matter, degree of being polymerized are selected in 400~600 preferably.
Further preferably, disintegrating agent is also contained in the modified alta-mud, the parts by weight of the disintegrating agent are 4-6
Part.
By using above-mentioned technical proposal, modified alta-mud enters after water body, and disintegrating agent can make modified alta-mud quick
Disintegration, makes it scatter in water body, gives full play to water purification effect.
Further preferably, the disintegrating agent includes organic acid and sodium bicarbonate, and the organic acid is citric acid, tartaric acid
With one of citric acid or a variety of, and the ratio of the organic acid and sodium bicarbonate is 1:(0.8-1.5).
By using above-mentioned technical proposal, after modified alta-mud contacts water body, organic acid and sodium bicarbonate in disintegrating agent
Chemical reaction occur generate free of contamination water and great amount of carbon dioxide, a large amount of bubbles to make modified alta-mud fater disintegration, make its with
Impurity in water body comes into full contact with, and preferably plays the catharsis of modified alta-mud.
The purpose of the present invention two is to provide a kind of preparation process of modified alta-mud, and the modification prepared using this method is swollen
Profit soil, adsorption capacity is stronger, while also having the function of sterilization, water purification.
To achieve the above object two, the present invention provides the following technical scheme that
A kind of preparation process of modified alta-mud, comprising the following steps:
Step 1, bentonitic purification: sufficiently soaking stirring for bentonite plus part water, and after quiescent settling, it is suspended to take out top
Liquid discards sediment, and water washed bentonite is dried, and grinding is stand-by；
Step 2, bentonite sodium: taking part aqueous solution sodium carbonate, and sodium carbonate liquor is made, will be selected obtained in step 1
Bentonite puts into sodium carbonate liquor progress prehydration processing, and treatment temperature is controlled at 25~35 DEG C, and the processing time is 22~
25h, the bentonite after filtering sodium are dried, and grinding is stand-by；
Step 3, it is bentonite modified: to take part aqueous solution polyethylene glycol, polyglycol solution is made, by aluminium chloride and step
Sodium-ionized bentonite obtained in two is added in polyglycol solution, is stirred evenly, filtration drying after static 2~4h, dry temperature
Degree is 50~55 DEG C；
Step 4 calcines the modified alta-mud in step 3, and calcination temperature is 560~580 DEG C；
Polyglutamic acid and disintegrating agent are added in step 4 and carry out mixed grinding in calcined modified alta-mud by step 5,
And tabletting is carried out using pressed disc method.
Further, in the step 3, the polyglycol solution of preparation is the solution of heat, and temperature is 50~55 DEG C.
Since the polyglycol solution viscosity of heat is lower than cold polyglycol solution, more easily enter between montmorillonite layer.
In conclusion compared with prior art, the invention has the following advantages:
(1) in sodium montmorillonite Intercalation reaction polyethylene glycol and aluminium chloride, after forming molecule pillar by hydrolysis, then pass through height
Warm burning-off polyethylene glycol, finally obtains that the porosity is higher, the biggish porous modified alta-mud of specific surface area, correspondingly, it is adsorbed
Ability increases, and when for handling sewage, the COD value of water body can be effectively reduced；
(2) by using polyglutamic acid, there is absorption and sequestering, chelate can be formed with heavy metal ion, can used
Carry out dyestuff and the metal ion etc. in absorption effluent, has the function of sterilization and water purification, and it also has bioerodible
Characteristic will not cause secondary pollution to water body；
(3), can be by modified alta-mud film-making, convenient transportation and use, when being used in water body by using disintegrating agent, bentone
Soil can fater disintegration blistering, with water body sufficiently and Rapid contact, preferably play its absorption and water purification effect.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment 1: a kind of modified alta-mud, each component and its corresponding parts by weight are as shown in table 1, and by walking as follows
Suddenly it prepares:
Step 1, bentonitic purification: sufficiently soaking stirring for bentonite plus part water, and after quiescent settling, it is suspended to take out top
Liquid discards sediment, and water washed bentonite is dried, and grinding is stand-by；
Step 2, bentonite sodium: taking part aqueous solution sodium carbonate, and sodium carbonate liquor is made, will be selected obtained in step 1
Bentonite puts into progress prehydration processing in sodium carbonate liquor, and treatment temperature is controlled at 25 DEG C, and the processing time is filtering for 24 hours
Bentonite after sodium is dried, and grinding is stand-by；
Step 3, it is bentonite modified: to take part aqueous solution polyethylene glycol and heated, heating and temperature control is made at 50 DEG C
Polyglycol solution, wherein the degree of polymerization of polyethylene glycol is 600, and sodium-ionized bentonite obtained in aluminium chloride and step 2 is added
Enter into polyglycol solution, stir evenly, filtration drying after static 4h, drying temperature is 55 DEG C；
Step 4 calcines the modified alta-mud in step 3, and calcination temperature is 560 DEG C；
Polyglutamic acid, organic acid and sodium bicarbonate are added in step 4 in calcined modified alta-mud and carry out by step 5
Mixed grinding, and tabletting is carried out using pressed disc method, wherein organic acid uses citric acid.
Embodiment 2-10: a kind of modified alta-mud, difference from example 1 is that, each component and its corresponding weight
It is as shown in table 1 to measure number.
Each component and its parts by weight in 1 embodiment 1-10 of table
| Bentonite | Sodium carbonate | Polyglutamic acid | Polyethylene glycol | Aluminium chloride | Water | Citric acid | Sodium bicarbonate | |
| Embodiment 1 | 8 | 0.3 | 0.8 | 0.8 | 0.13 | 20 | 1.6 | 2.4 |
| Embodiment 2 | 8.2 | 0.32 | 0.82 | 1 | 0.4 | 21 | 1.6 | 2.4 |
| Embodiment 3 | 8.4 | 0.34 | 0.84 | 1.2 | 0.7 | 22 | 1.8 | 2.7 |
| Embodiment 4 | 8.6 | 0.36 | 0.86 | 1.2 | 1 | 23 | 1.8 | 2.7 |
| Embodiment 5 | 8.8 | 0.38 | 0.88 | 1.4 | 1.3 | 24 | 2 | 3 |
| Embodiment 6 | 9 | 0.4 | 0.9 | 1.4 | 1.6 | 25 | 2 | 3 |
| Embodiment 7 | 9.2 | 0.42 | 0.92 | 1.6 | 1.9 | 26 | 2.2 | 3.3 |
| Embodiment 8 | 9.6 | 0.44 | 0.94 | 1.6 | 2.2 | 27 | 2.2 | 3.3 |
| Embodiment 9 | 9.8 | 0.46 | 0.96 | 1.8 | 2.5 | 28 | 2.4 | 3.6 |
| Embodiment 10 | 10 | 0.5 | 1 | 2 | 3 | 30 | 2.4 | 3.6 |
Embodiment 11: a kind of modified alta-mud, difference from example 1 is that, organic acid uses tartaric acid.
Embodiment 12: a kind of modified alta-mud, difference from example 1 is that, organic acid uses citric acid.
Comparative example 1: a kind of modified alta-mud, difference from example 1 is that, it is bentonite modified in step 3: to take
Part water is heated, and sodium-ionized bentonite obtained in aluminium chloride and step 2 is added to by heating and temperature control at 50 DEG C
It in water, stirs evenly, filtration drying after static 4h, drying temperature is 55 DEG C.
Comparative example 2: a kind of modified alta-mud, difference from example 1 is that, it is bentonite modified in step 3: to take
Part aqueous solution polyethylene glycol is simultaneously heated, and at 50 DEG C polyglycol solution is made, wherein polyethylene glycol in heating and temperature control
The degree of polymerization be 600, sodium-ionized bentonite obtained in step 2 is added in polyglycol solution, is stirred evenly, static 4h
Filtration drying afterwards, drying temperature are 55 DEG C
Comparative example 3: a kind of modified alta-mud, difference from example 1 is that, in step 5, by organic acid and bicarbonate
Sodium, which is added in step 4, carries out mixed grinding in calcined modified alta-mud, and carries out tabletting using pressed disc method, wherein having
Machine acid uses citric acid.
Comparative example 4: a kind of modified alta-mud, difference from example 1 is that, in step 5, by polyglutamic acid plus
Enter into step 4 and carry out mixed grinding in calcined modified alta-mud, and tabletting is carried out using pressed disc method.
Test COD value test
Test specimen: using the modified alta-mud obtained in embodiment 1-12 as test specimen 1-12, using in comparative example 1-4
The modified alta-mud of acquisition is as control sample 1-4.
Test method: taking the industrial wastewater 16L of Shanghai Dawnsun Fine Chemical Co., Ltd., be divided into 16 groups, and it is initial to measure it
COD value, will be added separately in 16 groups of industrial wastewaters in test specimen 1-12 and control sample 1-4, stand 4 hours.Foundation
" hydrochemistry is aerobic by China standard GB11914 " the measurement bichromate of water chemical oxygen demand is sent out " and international standard ISO6060
The measurement of amount " it is measured before every group of Industrial Wastewater Treatment respectively and treated COD value, and list compares.
Test result: 1-28 group volunteer is as shown in table 2 to the test result of test specimen 1-22 and control sample 1-6,
Test specimen 1-12 reaches 94~97% to the removal rate of COD, and control sample 1-3 is 71~74% to the removal rate of COD, control
Sample 4 is 94.1% to the removal rate of COD, illustrates the bentone in the application after polyethylene glycol and aluminum chloride modified
Soil is more unmodified, and bentonite adsorption ability is stronger, and water purification ability is more preferable.
The test result of table 2 test specimen 1-12 and control sample 1-4
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of modified alta-mud, which is characterized in that the component including following parts by weight:
Bentonite: 8-10 parts；
Sodium carbonate: 0.3-0.5 parts；
Polyglutamic acid: 0.8-1 parts；
Polyethylene glycol: 0.8-2 parts；
Aluminium chloride: 0.13-3 parts；
Water: 20-30 parts.
2. modified alta-mud according to claim 1, which is characterized in that the degree of polymerization of the polyethylene glycol be 400~
600。
3. modified alta-mud according to claim 1, which is characterized in that also contain disintegrating agent in the modified alta-mud,
The parts by weight of the disintegrating agent are 4-6 parts.
4. modified alta-mud according to claim 3, which is characterized in that the disintegrating agent includes organic acid and bicarbonate
Sodium, the organic acid are one of citric acid, tartaric acid and citric acid or a variety of, and the ratio of the organic acid and sodium bicarbonate
Example is 1:(0.8-1.5).
5. a kind of preparation process of modified alta-mud, which comprises the following steps:
Step 1, bentonitic purification: sufficiently soaking stirring for bentonite plus part water, and after quiescent settling, it is suspended to take out top
Liquid discards sediment, and water washed bentonite is dried, and grinding is stand-by；
Step 2, bentonite sodium: taking part aqueous solution sodium carbonate, and sodium carbonate liquor is made, will be selected obtained in step 1
Bentonite puts into sodium carbonate liquor progress prehydration processing, and treatment temperature is controlled at 25~35 DEG C, and the processing time is 22~
25h, the bentonite after filtering sodium are dried, and grinding is stand-by；
Step 3, it is bentonite modified: to take part aqueous solution polyethylene glycol, polyglycol solution is made, by aluminium chloride and step
Sodium-ionized bentonite obtained in two is added in polyglycol solution, is stirred evenly, filtration drying after static 2~4h, dry temperature
Degree is 50~55 DEG C；
Step 4 calcines the modified alta-mud in step 3, and calcination temperature is 560~580 DEG C；
Polyglutamic acid and disintegrating agent are added in step 4 and carry out mixed grinding in calcined modified alta-mud by step 5,
And tabletting is carried out using pressed disc method.
6. preparation process according to claim 5, which is characterized in that in the step 3, the polyethylene glycol of preparation is molten
Liquid is the solution of heat, and temperature is 50~55 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111512927A (en) * | 2020-04-30 | 2020-08-11 | 昊博(山东)新材料科技有限公司 | Nutrient geotextile |
| CN112250079A (en) * | 2020-10-21 | 2021-01-22 | 西安工程大学 | Preparation method of polyethylene glycol modified sodium bentonite |
| CN112391193A (en) * | 2020-11-12 | 2021-02-23 | 大连大学 | Method for adsorbing and removing dibenzothiophene |
| CN114212840A (en) * | 2021-11-10 | 2022-03-22 | 北京巴博尔水环境科技有限公司 | Deamination active bacterium glutamic acid water treatment agent for high-salt water purification and preparation method and application thereof |
| CN114570262A (en) * | 2022-03-03 | 2022-06-03 | 浙江益昇环境科技有限公司 | Manufacturing device and manufacturing method for rapidly dispersing bentonite |
| CN115124310A (en) * | 2022-07-29 | 2022-09-30 | 扬州工业职业技术学院 | Pervious concrete and preparation method thereof |
| CN115152643A (en) * | 2022-08-12 | 2022-10-11 | 杭州高爷家小炮宠物用品有限责任公司 | Preparation process of cereal puffed cat litter |
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|---|---|---|---|---|
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| CN112391193A (en) * | 2020-11-12 | 2021-02-23 | 大连大学 | Method for adsorbing and removing dibenzothiophene |
| CN114212840A (en) * | 2021-11-10 | 2022-03-22 | 北京巴博尔水环境科技有限公司 | Deamination active bacterium glutamic acid water treatment agent for high-salt water purification and preparation method and application thereof |
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| CN115124310A (en) * | 2022-07-29 | 2022-09-30 | 扬州工业职业技术学院 | Pervious concrete and preparation method thereof |
| CN115152643A (en) * | 2022-08-12 | 2022-10-11 | 杭州高爷家小炮宠物用品有限责任公司 | Preparation process of cereal puffed cat litter |
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Address after: No. two Xingping street Pinghu City Zhong Dai Jiaxing city Zhejiang province 314299 No. 1569 Applicant after: Jiaxing wattek Environmental Protection Technology Co.,Ltd. Address before: No. two Xingping street Pinghu City Zhong Dai Jiaxing city Zhejiang province 314299 No. 1569 Applicant before: JIAXING WATER TECH ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |