CN106673159A - Attapulgite-loaded modified poly-silicon ferric sulfate flocculant and preparation method thereof - Google Patents
Attapulgite-loaded modified poly-silicon ferric sulfate flocculant and preparation method thereof Download PDFInfo
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- CN106673159A CN106673159A CN201611149600.XA CN201611149600A CN106673159A CN 106673159 A CN106673159 A CN 106673159A CN 201611149600 A CN201611149600 A CN 201611149600A CN 106673159 A CN106673159 A CN 106673159A
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- attapulgite
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- ferric sulfate
- flocculant
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an attapulgite-loaded modified poly-silicon ferric sulfate flocculant and a preparation method thereof. The attapulgite-loaded modified poly-silicon ferric sulfate flocculant is characterized by being prepared from the following raw materials in parts by weight: 1.3 parts of sodium silicate, 25.30 parts of FeSO4.7H2O, 1.2 parts of sodium polyacrylate, a proper amount of a waste sulfuric acid liquid, 2.3 parts of ferrous oxide thiobacillus, 4.6 parts of hydrogen peroxide, 1.3 parts of lignin, 3.5 parts of silver nitrate, 3.5 parts of polyacrylamide VN835, 15.25 parts of attapulgite, 25.35 parts of glycol and 25.30 parts of water. As polymerized ferric sulfate is loaded by attapulgite, the action force of flocculant molecules can be changed, an adsorption layer can be relatively firm and compact, the flocculating performance of the flocculant can be improved, and the flocculating effect can be improved; and as a certain amount of sodium silicate and sodium polyacrylate are added to modify the flocculant, the stability of the flocculant is improved.
Description
Technical field
The present invention relates to a kind of modified ferric sulfate of polymerized silica flocculation of attapulgite loaded of the water process such as water supply draining
Agent and preparation method thereof, belongs to field of environment engineering technology.
Background technology
Bodied ferric sulfate is a kind of new, high-quality, efficient iron salt class inorganic polymer flocculant, is mainly used in purifying water effect
Excellent, water quality is good, and without harmful substances such as aluminum, chlorine and heavy metal ion, also the water of non-iron-ion is nontoxic to transfer, harmless, peace
It is complete reliable, turbidity removal, decolouring, removing oil, dehydration, degerming, deodorization, except algae, remove COD, BOD and heavy metal ion in eliminating water the effects such as
Significantly etc..It is also used for Industrial Wastewater Treatment, such as dyeing waste water.
Attapulgite is a kind of aqueous magnalium carbonate clay mineral, and the basic structural unit of attapulgite is parallel to carbon
The silicon-oxy tetrahedron double-strand composition of axle, each interchain is connected by oxygen atom, and the interlayer up and down of each double-strand passes through one layer of magnesium original
The sexavalence coordination connection of son.The sensing (i.e. the angle top of silicon-oxy tetrahedron) of silicon-oxy tetrahedron active oxygen atom is upper and lower per tetrad
It is alternately arranged.Due to there is crystal duct in crystal structure, internal surface area is larger, thus with very strong physical absorption performance.
Road is reached in its Ph.D. Dissertation《Bodied ferric sulfate and ferric sulfate of polymerized silica are prepared and organically-modified research》In, utilize
Oxidizing process is prepared for a kind of bodied ferric sulfate, but its flocculating effect, turbidity removal rate need further raising.
The content of the invention
Thinking based on more than, the present invention is intended to provide a kind of flocculating effect is good, the high composite ferric sulfate polymer of turbidity removal rate
Flocculant and preparation method thereof.
The technical problem to be solved is realized using following technical scheme：
The modified ferric sulfate of polymerized silica flocculant of a kind of attapulgite loaded, it is characterised in that be made up of the raw material of following weight portion：
Sodium silicate 1-3, FeS04·7H20 25-30, sodium polyacrylate 1-2, appropriate sulfuric acid waste, thiobacillus ferrooxidant 2-3,
Hydrogen peroxide 4-6, lignin 1-3, silver nitrate 3-5, polyacrylamide VN835 3-5, attapulgite 15-25, ethylene glycol 25-35,
Water 25-30；
The mass fraction of the sulfuric acid waste is not less than 60%.
Modified ferric sulfate of polymerized silica flocculant of described a kind of attapulgite loaded and preparation method thereof, it is characterised in that
It is made up of following steps：
A. sodium silicate is added water and is configured to sodium silicate solution, be then added thereto to sulfuric acid waste, regulation pH is 1-2, is stirred,
FeS0 is added after mixing4·7H20th, thiobacillus ferrooxidant, dropwise instills hydrogen peroxide at 18-24 DEG C, aerobic culture 2-3 days makes
Its is ferrous oxidising into ferric iron, adds sodium polyacrylate, stands after ripening certain hour in the shady and cool place of drying, filters, and must change
Property ferric sulfate of polymerized silica flocculant；
B. attapulgite is bakeed into 40-80min at 300 DEG C -700 DEG C, 1-2h is soaked with sulfuric acid waste after cooling, filtered, water
It is washed till after neutrality and is ground, uses 150-250 mesh sieves, drying for standby；
C. step b gained attapulgite is added in ethylene glycol solution, suspension is obtained after ultrasonic disperse, added silver nitrate, gather
Acrylamide VN835, lignin, after immersion 2-5h, centrifugation, washing is vacuum dried under the conditions of 25-55 DEG C, obtains absorption poly-
Acrylamide VN835, and carry attapulgite, the lignin mixture of silver；
D. step c gained mixture is added in the modified ferric sulfate of polymerized silica flocculant of step a gained, is stirred at 30-70 DEG C
1h-6h, filters, and then in 30 DEG C of -50 DEG C of drying, grinds to form powdery.
Modified ferric sulfate of polymerized silica flocculant of described a kind of attapulgite loaded and preparation method thereof, it is characterised in that
Curing time is that 2-4 is all.
The invention has the beneficial effects as follows：Add thiobacillus ferrooxidant as biocatalyzer in oxidizing process, safely may be used
By, energy-conserving and environment-protective；Bodied ferric sulfate is loaded using attapulgite, the intermolecular forces for causing flocculating agent molecule become
Change, so that adsorption layer is more firmly and tight, increase and improve the flocculating property of flocculant, flocculating effect strengthens；Heating
Attapulgite sulfuric acid waste immersion after activation can remove the impurity being distributed in attapulgite duct, dredge duct, carry
High attapulgite adsorptivity, decolourising property etc..Ethylene glycol can on attapulgite in-situ reducing silver nitrate, make the silver particles of generation
It is attached on attapulgite, gives the function of flocculant antibacterial, increases the service life, meanwhile, polyacrylamide VN835 not only may be used
To cooperate with turbidity removal together with bodied ferric sulfate, load of the silver particles on attapulgite can also be promoted；In the present invention, with the addition of
A certain amount of sodium silicate and sodium polyacrylate are modified to its, improve the stability of flocculant.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.
Embodiment
The modified ferric sulfate of polymerized silica flocculant of a kind of attapulgite loaded, it is characterised in that by the raw material of following weight portion
Make：
Sodium silicate 3, FeS04·7H20 30, sodium polyacrylate 2, appropriate sulfuric acid waste, thiobacillus ferrooxidant 3, hydrogen peroxide 6,
Lignin 3, silver nitrate 5, polyacrylamide VN835 5, attapulgite 25, ethylene glycol 35, water 30；
The mass fraction of the sulfuric acid waste is not less than 60%.
Modified ferric sulfate of polymerized silica flocculant of described a kind of attapulgite loaded and preparation method thereof, it is characterised in that
It is made up of following steps：
A. sodium silicate is added water and is configured to sodium silicate solution, be then added thereto to sulfuric acid waste, regulation pH is 1-2, is stirred,
FeS0 is added after mixing4·7H20th, thiobacillus ferrooxidant, dropwise instills hydrogen peroxide at 18-24 DEG C, aerobic culture 2-3 days makes
Its is ferrous oxidising into ferric iron, adds sodium polyacrylate, stands after ripening certain hour in the shady and cool place of drying, filters, and must change
Property ferric sulfate of polymerized silica flocculant；
B. attapulgite is bakeed into 40-80min at 300 DEG C -700 DEG C, 1-2h is soaked with sulfuric acid waste after cooling, filtered, water
It is washed till after neutrality and is ground, uses 150-250 mesh sieves, drying for standby；
C. step b gained attapulgite is added in ethylene glycol solution, suspension is obtained after ultrasonic disperse, added silver nitrate, gather
Acrylamide VN835, lignin, after immersion 2-5h, centrifugation, washing is vacuum dried under the conditions of 25-55 DEG C, obtains absorption poly-
Acrylamide VN835, and carry attapulgite, the lignin mixture of silver；
D. step c gained mixture is added in the modified ferric sulfate of polymerized silica flocculant of step a gained, is stirred at 30-70 DEG C
1h-6h, filters, and then in 30 DEG C of -50 DEG C of drying, grinds to form powdery.
The modified ferric sulfate of polymerized silica flocculant of described a kind of attapulgite loaded, it is characterised in that the curing time is 2-4
Week.
The present invention technical parameter be：Remove turbid rate >=95%.
Claims (3)
1. the modified ferric sulfate of polymerized silica flocculant of a kind of attapulgite loaded, it is characterised in that by the raw material system of following weight portion
Into：
Sodium silicate 1-3, FeS04·7H20 25-30, sodium polyacrylate 1-2, appropriate sulfuric acid waste, thiobacillus ferrooxidant 2-3,
Hydrogen peroxide 4-6, lignin 1-3, silver nitrate 3-5, polyacrylamide VN835 3-5, attapulgite 15-25, ethylene glycol 25-35,
Water 25-30；
The mass fraction of the sulfuric acid waste is not less than 60%.
2. modified ferric sulfate of polymerized silica flocculant of a kind of attapulgite loaded according to claim 1 and preparation method thereof,
Characterized in that, being made up of following steps：
A. sodium silicate is added water and is configured to sodium silicate solution, be then added thereto to sulfuric acid waste, regulation pH is 1-2, is stirred,
FeS0 is added after mixing4·7H20th, thiobacillus ferrooxidant, dropwise instills hydrogen peroxide at 18-24 DEG C, aerobic culture 2-3 days makes
Its is ferrous oxidising into ferric iron, adds sodium polyacrylate, stands after ripening certain hour in the shady and cool place of drying, filters, and must change
Property ferric sulfate of polymerized silica flocculant；
B. attapulgite is bakeed into 40-80min at 300 DEG C -700 DEG C, 1-2h is soaked with sulfuric acid waste after cooling, filtered, water
It is washed till after neutrality and is ground, uses 150-250 mesh sieves, drying for standby；
C. step b gained attapulgite is added in ethylene glycol solution, suspension is obtained after ultrasonic disperse, added silver nitrate, gather
Acrylamide VN835, lignin, after immersion 2-5h, centrifugation, washing is vacuum dried under the conditions of 25-55 DEG C, obtains absorption poly-
Acrylamide VN835, and carry attapulgite, the lignin mixture of silver；
D. step c gained mixture is added in the modified ferric sulfate of polymerized silica flocculant of step a gained, is stirred at 30-70 DEG C
1h-6h, filters, and then in 30 DEG C of -50 DEG C of drying, grinds to form powdery.
3. modified ferric sulfate of polymerized silica flocculant of a kind of attapulgite loaded according to claim 2 and preparation method thereof,
Characterized in that, the curing time is that 2-4 is all.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611149600.XA CN106673159A (en) | 2016-12-14 | 2016-12-14 | Attapulgite-loaded modified poly-silicon ferric sulfate flocculant and preparation method thereof |
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| CN201611149600.XA CN106673159A (en) | 2016-12-14 | 2016-12-14 | Attapulgite-loaded modified poly-silicon ferric sulfate flocculant and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108557969A (en) * | 2018-04-24 | 2018-09-21 | 河南省科学院化学研究所有限公司 | A kind of composite flocculation agent for paper waste advanced treating |
| CN114751662A (en) * | 2022-03-31 | 2022-07-15 | 抚顺大伙房水泥有限责任公司 | Alkaline steel slag activity excitant and preparation method of steel slag cementing material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974566A (en) * | 2010-10-30 | 2011-02-16 | 中南大学 | Method for preparing and using polymeric flocculant polyferric silicate sulfate |
| CN105540805A (en) * | 2015-12-08 | 2016-05-04 | 甘肃省建材科研设计院 | Potato starch waste water macro-molecule organic matter separation treatment special-purpose flocculating agent |
-
2016
- 2016-12-14 CN CN201611149600.XA patent/CN106673159A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974566A (en) * | 2010-10-30 | 2011-02-16 | 中南大学 | Method for preparing and using polymeric flocculant polyferric silicate sulfate |
| CN105540805A (en) * | 2015-12-08 | 2016-05-04 | 甘肃省建材科研设计院 | Potato starch waste water macro-molecule organic matter separation treatment special-purpose flocculating agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108557969A (en) * | 2018-04-24 | 2018-09-21 | 河南省科学院化学研究所有限公司 | A kind of composite flocculation agent for paper waste advanced treating |
| CN114751662A (en) * | 2022-03-31 | 2022-07-15 | 抚顺大伙房水泥有限责任公司 | Alkaline steel slag activity excitant and preparation method of steel slag cementing material |
| CN114751662B (en) * | 2022-03-31 | 2024-02-23 | 抚顺大伙房水泥有限责任公司 | Preparation method of alkaline steel slag activity excitant and steel slag cementing material |
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