CN1328970A - Cleaning agent of aqueous aluminium iron polysilicate waste water and its production method - Google Patents
Cleaning agent of aqueous aluminium iron polysilicate waste water and its production method Download PDFInfo
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- CN1328970A CN1328970A CN 00113030 CN00113030A CN1328970A CN 1328970 A CN1328970 A CN 1328970A CN 00113030 CN00113030 CN 00113030 CN 00113030 A CN00113030 A CN 00113030A CN 1328970 A CN1328970 A CN 1328970A
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Abstract
An aqueous aluminium iron polysilicate waste water cleaning agent is characterized by that it possesses the following chemical formula composite: [Na k Fe x Al y(SiOr)z(SO4)p.nH2O]m where all the subscript molar numbers are respectively: K is greater than or equal to 0.02 or less than or equal to 1.20, X is greater than or equal to 0.30 or less than or equal to 0.40, y is greater than or equal to 0.03 or less than or equal to 0.50, z is greater than or equal to 0.05 or less than or equal to 0.50, p is greater than or equal to 0 or less than or equal to 2.50, q is greater than or equal to 0 or less than or equal to 1.70, n is greater than or equal to 47 or less than or equal to to 55, m is greater than or equal to I and R is greater thanor equal to 2 or less than or equal to 4. It is made up by using ferrous waste slag, aluminium salt or aluminium refined liquor, hydrochloric acid, sulfuric acid or their mixed acid, industrial water glass and water as raw materials through the process of extraction, separation, activating and polymerization. It is suitable for treating alkali waste water of paper-making through the process of extraction, separation, activating and polymerization. It is suitable for treating alkaling waste water of paper-making through the process of extraction, separatino, activating and polymerization. It is suitable for treating alkali waste water of paper-making waste water and printing waste water.
Description
The present invention relates to a kind of scavenging agent that waste water is used of handling, particularly a kind of inorganic polymer wastewater purificant and production method thereof.
Flocculent precipitation is one of at present most widely used water treatment method.The flocculation agent that uses in the flocculent precipitation mainly contains inorganic flocculating agent and organic floculant two big classes.
Use the widest inorganic flocculating agent that aluminium salt and molysite two class inorganic polymer flocculants are arranged on the market, also occurred zinc salt and magnesium salts flocculation agent in recent years, and the composite flocculation agent of several salts.Now that representational inorganic polymer flocculant division is as follows:
Aluminium chlorohydroxide (PAC): aluminium chlorohydroxide is a kind of inorganic polymer polymer of making under optimum conditions that has an amount of electric charge and the big polymerization degree that aluminium salt is controlled in advance.Its great advantage is: in case drop in the water, can play a role immediately.Its shortcoming is, the cost height, and mud is loose, and volume is big.
Activated silicic acid: activated silicic acid is a kind of anionic inorganic polymer, also is a kind of good water quality cleansing agent.It is to be Na with water glass
2O.3SiO
2.xH
2O is a raw material, adds activator, will be wherein with Na
2O is that the basicity of representative is neutralized, the activated silicic acid that obtains.Its shortcoming is, because the most of micelle in the waste water is electronegative, so activated silicic acid is the flocculation agent of anionic, mainly shows as the bridging effect, rather than the charge neutrality effect; In addition,, use it to dispose at the scene because activated silicic acid exists polycondensation, so, promote the use of and be subjected to certain restriction.And price is higher.
Most widely used organic polymer coargulator is the series product of polyacrylamide flocculant at present.Its shortcoming is that flocs unit intensity is less, and is easily broken; Flocs unit water ratio height, volume is big; The medicament modulation is trouble; Price is higher; There is certain toxicity.
The objective of the invention is to, provide a kind of price low, the cleaning agent of aqueous aluminium iron polysilicate waste water that coagulation effect is good.The present invention also provides the production method of this scavenging agent.
Cleaning agent of aqueous aluminium iron polysilicate waste water provided by the invention has following chemical constitution formula:
[Na
kFe
xAl
y(SiO
R)
z(SO
4)
pNH
2O]
mEach time target mole number is respectively in the formula: 0.02≤k≤1.20,0.03≤x≤0.40,0.03≤y≤0.50,0.05≤z≤0.50,0≤p≤2.50,0≤q≤1.70,47≤n≤55,1≤m, 2≤R≤4.
The production method of above-mentioned cleaning agent of aqueous aluminium iron polysilicate waste water may further comprise the steps:
A, get iron slag, cross 60 mesh sieves, by pulp water weight ratio 1: 20-1: 40 added entry, must the A product;
B, with the A product as in the extractor, by iron and hydrogen ion mol ratio 1: 3-1: 5 added hydrochloric acid, sulfuric acid or are 1: 0.5-1 by the mol ratio of hydrochloric acid and hydrogen sulfate ion: 2 hydrochloric acid of making and vitriolic mixing acid, after heated and boiled is extracted 1-2 hour under constantly stirring, leave standstill, sink clear, carry out slag liquid and separate, gained filtrate is the B product;
C, the B product are placed polymerizer, pressed the iron al mole ratio 1: 0.1-1: 10 add aluminium salt or aluminium seminal fluid, under constantly stirring, make it to activate into fully Fe
3+With Al3
+Multipolymer, control pH＜5 get the C product;
D, get SiO
2Content is that the process water glass solution of 3-8% places activator, stir on the limit, and the limit adds hydrochloric acid, sulfuric acid or is 1: 0.5-1 by the mol ratio of hydrochloric acid and hydrogen sulfate ion: 2 hydrochloric acid of making and vitriolic mixing acid, control pH＜5, activate after 20-30 hour, get the D product;
E, by iron and silica molar ratios 1: 0.1-1: 10 add the D product and fill in the polymerizer of C product, after stirring, after polymerization 20-30 hour, must finished product.
Compared with the prior art, the present invention utilizes the polymerization of aluminium salt and molysite and silicic acid, in active silicic acid, add certain density high volence metal ion, the polycondensation process that not only can effectively slow down silicic acid sol, simultaneously, because the adding of metal ion, can also change the ξDian Wei of active silicic acid,, not only strengthen the charge neutrality effect making electronegative active silicic acid be converted into the cationic high-molecular polymkeric substance of positively charged, and compression micelle electrostatic double layer, the throwing out of enhanced activity silicic acid.Thereby improved the flocculating properties of flocculation agent greatly.Have raw material sources extensively, simple, the excellent wastewater treatment effect of less investment, production technique, can simplify waste water treatment process, characteristics that processing cost is low.Be particularly suitable for alkaline waste waters such as Processing Paper Wastewater, dyeing waste water.
Below in conjunction with embodiment the specific embodiment of the present invention is described in further detail.
Accompanying drawing 1 is technological process of production figure of the present invention.
Embodiment 1, prepares 1 ton of chloride type cleaning agent of aqueous aluminium iron polysilicate waste water.
A, got 21 kilograms of the scrap iron slags of the iron content 50% of 60 mesh sieves, and pressed the pulp water weight ratio and add 525 kg water at 1: 25, the A product;
B, the A product are placed extractor, press 82 kilograms of the technical hydrochloric acids that iron and hydrogen ion mol ratio add concentration 33% at 1: 5, after heated and boiled is extracted 1.5 hours under constantly stirring, leave standstill, heavy clear, carry out slag liquid and separate, gained filtrate is the B product;
C, the B product are placed polymerizer, pressed the iron al mole ratio 1: 1.7, add 64 kilograms in 97% aluminum chloride, under constantly stirring, make it to activate into fully Fe3
+With Al3
+Multipolymer gets the C product;
D, get SiO
2Content is 60 kilograms of 25% process water glass solutions, and 240 kilograms in water makes SiO
2Content is 5% water glass solution and places activator.Under agitation condition, add hydrochloric acid, control pH＜5 get final product, and activate after 22 hours, get the D product;
E, the D product are added fill in the polymerizer of C product, thin up to 1 ton scale stirs, and polymerization can get iron: aluminium after 24 hours: the mol ratio of silicon-dioxide is 1: 1.7: 0.67 a chloride type cleaning agent of aqueous aluminium iron polysilicate waste water.Handle the reduced form waste water from dyestuff with it, can make the COD in the waste water drop to 144mg/l, clearance 70% from 480mg/l; Turbidity drops to 0.57 degree, clearance 95.9% from 13.9 degree; Colourity drops to 4 degree, clearance 98.4% from 256 degree; BOD5 drops to 34.2mg/l from 53.3mg/l, clearance 35.9%.
Embodiment 2, prepare 1 ton of compound cleaning agent of aqueous aluminium iron polysilicate waste water.
A, got 13 kilograms of the waste iron filings of the iron content 90% of 60 mesh sieves, and pressed the pulp water weight ratio and add 300 kg water at 1: 23, the A product;
B, the A product are placed extractor, press iron and hydrogen ion mol ratio and add 59 kilograms in mixing acid at 1: 5, mixing acid is mixed and made into for 37 kilograms by 22 kilograms of the technical hydrochloric acids of concentration 33% and the industrial sulphuric acids of concentration 98%.After heated and boiled is extracted 2 hours under constantly stirring, leave standstill, sink clearly, carry out slag liquid and separate, gained filtrate is the B product;
C, the B product are placed polymerizer, press the iron al mole ratio and add 165 liters of 22.9 grams per liter aluminium seminal fluid at 1: 0.78, under constantly stirring, transfer pH＜5, make it to activate into fully Fe3 with mixing acid
+With Al3
+Multipolymer gets the C product;
D, get SiO
2Content is 29 kilograms of 25% process water glass solutions, and 175 kilograms in water makes SiO
2Content is 5% water glass solution and places activator.Under agitation condition, add hydrochloric acid, control pH＜5 activated after 28 hours, got the D product;
E, the D product are added fill in the polymerizer of C product, add water to 1 ton scale simultaneously, stir, polymerization can get iron: aluminium after 28 hours: the mol ratio of silicon-dioxide is 1: 0.78: 0.67 a compound cleaning agent of aqueous aluminium iron polysilicate waste water.Handle the reduced form waste water from dyestuff with it, can make the COD in the waste water drop to 112mg/l, clearance 76.7% from 480mg/l; Turbidity drops to 0.19 degree, clearance 98.6% from 13.9 degree; Colourity drops to 4 degree, clearance 98.4% from 256 degree; BOD5 drops to 29.4mg/l from 53.3mg/l, clearance 44.9%.
Embodiment 3, prepare 1 ton of sulfate type cleaning agent of aqueous aluminium iron polysilicate waste water.
A, got 15 kilograms of the scrap iron slags of the iron content 50% of 60 mesh sieves, and pressed the pulp water weight ratio and add 375 kg water at 1: 25, the A product;
B, the A product are placed extractor, press 27.5 kilograms of the industrial sulphuric acids that iron and hydrogen ion mol ratio add concentration 98% at 1: 5, after heated and boiled is extracted 1.5 hours under constantly stirring, leave standstill, heavy clear, carry out slag liquid and separate, gained filtrate is the B product;
C, the B product are placed polymerizer, pressed the iron al mole ratio 1: 1.09, add 144 liters of 22.9 grams per liter aluminium seminal fluid, under constantly stirring, make it to activate into fully Fe3
+With Al3
+Multipolymer gets the C product;
D, get SiO
2Content is 43 kilograms of 25% process water glass solutions, and 173 kilograms in water makes SiO
2Content is 5% water glass solution and places activator.Under agitation condition, add sulfuric acid, control pH＜5 activated after 24 hours, got the D product;
E, the D product are added fill in the polymerizer of C product, thin up to 1 ton scale stirs, and polymerization can get iron: aluminium after 24 hours: the mol ratio of silicon-dioxide is 1: 1.09: 1.64 a sulfate type cleaning agent of aqueous aluminium iron polysilicate waste water.Handle sulfuration decentralized waste water from dyestuff with it, PH drops to 8.2 from 12, and COD drops to 130mg/l from 512mg/l, clearance 74.6%; Turbidity drops to 0.8 degree, clearance 95.6% from 18.1 degree; Colourity drops to 4 degree, clearance 98.4% from 256 degree; BOD5 drops to 28.4mg/l from 93.5mg/l, clearance 69.7%.
The present invention adopts iron slag as raw material, is intended to utilization of waste material, and also available certainly molysite can omit step a, b like this as the B product.
Claims (2)
1, cleaning agent of aqueous aluminium iron polysilicate waste water is characterized in that having following chemical constitution formula:
[Na
kFe
xAl
y(SiO
R)
z(SO
4)
pNH
2O]
mEach time target mole number is respectively in the formula:
0.02≤k≤1.20，0.03≤x≤0.40，0.03≤y≤0.50，0.05≤z≤0.50，
0≤p≤2.50，0≤q≤1.70，47≤n≤55，1≤m，2≤R≤4。
2, the production method of cleaning agent of aqueous aluminium iron polysilicate waste water according to claim 1 is characterized in that, this production method may further comprise the steps:
A, get iron slag, cross 60 mesh sieves, by pulp water weight ratio 1: 20-1: 40 added entry, must the A product;
B, the A product are placed extractor, by iron and hydrogen ion mol ratio 1: 3-1: 5 added hydrochloric acid, sulfuric acid or are 1: 0.5-1 by the mol ratio of hydrochloric acid and hydrogen sulfate ion: 2 hydrochloric acid of making and vitriolic mixing acid, after heated and boiled is extracted 1-2 hour under constantly stirring, leave standstill, sink clear, carry out slag liquid and separate, gained filtrate is the B product;
C, the B product are placed polymerizer, pressed the iron al mole ratio 1: 0.1-1: 10 add aluminium salt or aluminium seminal fluid, and control pH＜5 under constantly stirring, make it to activate into fully FFe3
+With Al
3+Multipolymer gets the C product;
D, get SiO
2Content is that the process water glass solution of 3-8% places activator, stir on the limit, and the limit adds hydrochloric acid, sulfuric acid or is 1: 0.5-1 by hydrochloric acid and vitriolic hydrogen ion mol ratio: 2 hydrochloric acid of making and vitriolic mixing acid, control pH＜5, activate after 20-30 hour, get the D product;
E, by iron and silica molar ratios 1: 0.1-1: 10 add the D product and fill in the polymerizer of C product, stir, after polymerization 20-30 hour, must finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113030 CN1116233C (en) | 2000-06-15 | 2000-06-15 | Cleaning agent of aqueous aluminium iron polysilicate waste water and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113030 CN1116233C (en) | 2000-06-15 | 2000-06-15 | Cleaning agent of aqueous aluminium iron polysilicate waste water and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1328970A true CN1328970A (en) | 2002-01-02 |
| CN1116233C CN1116233C (en) | 2003-07-30 |
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ID=4582849
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00113030 Expired - Fee Related CN1116233C (en) | 2000-06-15 | 2000-06-15 | Cleaning agent of aqueous aluminium iron polysilicate waste water and its production method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325391C (en) * | 2006-03-17 | 2007-07-11 | 重庆市化工研究院 | Method of producing poly aluminium iron silicate composite flocculating agent using fly ash and ferrous sulphate |
| CN104016460A (en) * | 2014-06-26 | 2014-09-03 | 云南梓康廷环保科技有限公司 | Stable polyferrosilite production method |
| CN104478051A (en) * | 2014-12-10 | 2015-04-01 | 上海应用技术学院 | Method for preparing poly-aluminum ferric silicate sulfate flocculating agent |
| CN106006795A (en) * | 2016-07-25 | 2016-10-12 | 广西南宁栩兮科技有限公司 | Bagasse, bentonite and kaolin composite wastewater treatment agent |
| CN106335960A (en) * | 2016-10-14 | 2017-01-18 | 广西玉林市正裕金银矿产技术开发有限公司 | Multipurpose compound sewage purification agent |
-
2000
- 2000-06-15 CN CN 00113030 patent/CN1116233C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325391C (en) * | 2006-03-17 | 2007-07-11 | 重庆市化工研究院 | Method of producing poly aluminium iron silicate composite flocculating agent using fly ash and ferrous sulphate |
| CN104016460A (en) * | 2014-06-26 | 2014-09-03 | 云南梓康廷环保科技有限公司 | Stable polyferrosilite production method |
| CN104478051A (en) * | 2014-12-10 | 2015-04-01 | 上海应用技术学院 | Method for preparing poly-aluminum ferric silicate sulfate flocculating agent |
| CN106006795A (en) * | 2016-07-25 | 2016-10-12 | 广西南宁栩兮科技有限公司 | Bagasse, bentonite and kaolin composite wastewater treatment agent |
| CN106335960A (en) * | 2016-10-14 | 2017-01-18 | 广西玉林市正裕金银矿产技术开发有限公司 | Multipurpose compound sewage purification agent |
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| Publication number | Publication date |
|---|---|
| CN1116233C (en) | 2003-07-30 |
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Granted publication date: 20030730 Termination date: 20100615 |