CN104944555A - Inorganic coagulant for fluorine removing water treatment and production method of inorganic coagulant - Google Patents
Inorganic coagulant for fluorine removing water treatment and production method of inorganic coagulant Download PDFInfo
- Publication number
- CN104944555A CN104944555A CN201410126360.6A CN201410126360A CN104944555A CN 104944555 A CN104944555 A CN 104944555A CN 201410126360 A CN201410126360 A CN 201410126360A CN 104944555 A CN104944555 A CN 104944555A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- weight
- inorganic coagulant
- magnesium
- water treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to an inorganic coagulant for fluorine removing water treatment and a production method of the inorganic coagulant. The inorganic coagulant which is capable of improving the fluorine removing capacity and is in an aluminum-magnesium chloride state is obtained by virtue of aluminum, basicity and magnesium which are used as important factors to take effects when fluorine in wastewater is subjected to agglutination reaction; the fluorine removing efficiency is increased by using the inorganic coagulant; weak-basic aluminum-magnesium chloride is prepared by using the inorganic coagulant which is capable of improving the fluorine removing capacity and is in the aluminum-magnesium chloride state; fluorine contained in drain water or polluted wastewater is subjected to agglutination reaction through chemical treatment to form a flocculate which is easily settled, so that the fluorine agglutination capacity and the fluorine removing efficiency are improved, the yield of sludge can be reduced to the lowest extent, and the fluorine removing treatment expense of wastewater can be remarkably reduced. According to the inorganic coagulant for fluorine removing water treatment, 30-35wt% of mixed aluminum hydroxide and 65-70wt% of hydrochloric acid form a mixed compound; and the inorganic coagulant contains 57-65wt% of the mixed compound, 1-4wt% of a magnesium compound, 17-22wt% of hydrochloric acid and 17wt% of water.
Description
Technical field
The present invention relates to water treatment inorganic coagulant and the manufacture method thereof for removing fluorine, the aluminium worked as important factor when particularly relating to a kind of fluorine generation agglutination reaction (agglutination reaction) relied in waste water and basicity (basicity) and magnesium, obtain magnalium muriate (chloride) the state inorganic coagulant improving and go fluorine ability, fluorine efficiency is improved further by this inorganic coagulant, weakly alkaline (Weakly basic) chlorination magnalium is manufactured by improving the magnalium chlorination states of matter inorganic coagulant going fluorine ability, lower water or the fluorine-containing generation agglutination reaction of stain disease is allowed by chemical treatment, make it to form throw out (floc) and be easy to precipitation, can further improve fluorine agglutinability, improve and go fluorine efficiency, mud (sludge) growing amount can be reduced to greatest extent, significantly can reduce water treatment inorganic coagulant and manufacture method thereof for removing fluorine that waste water goes fluorine processing costs.
Background technology
Along with the prosperity day by day of industry, just producing the various environmental pollutant comprising waste water in a large number.The discharge of this environmental pollutant can cause air, water, soil severe contamination.Along with the attention of people's environmental pollution, reduce the discharge of environmental pollutant at present, effectively process, minimizing trade waste have become the important topic of facing mankind.
The trade waste of maximum ratio is occupied in described environmental pollutant, its kind is very many, as spent acid, salkali waste, waste oil, mud, cotton, the useless agricultural chemicals of barren rock, useless synthetic macromolecular compound etc., process these various wastes, need to drop into sizable effort and expense.
Especially, the technology processing waste water utilizes chemical coagulation or microbiological treatment, ion-exchange, sorbent material oxidation style etc. usually.In order to chemical coagulation, usually use molysite system inorganic coagulant or aluminium system inorganic coagulant.And when being used alone these inorganic coagulants, even if improve its usage quantity, sometimes still cannot remove seston, Dissolved Organic Matter (dissolved organic matter) etc.In order to address this problem, need the charge capacity increasing clean water treatment, and this problem that tap water price can be caused to rise, there is side effect.Especially, the reasons such as flood cause temporary raw water turbidity rise or pH value change in summer greatly time, be difficult to only carry out effective agglutination reaction with inorganic coagulant.
In addition, when using aluminium system inorganic coagulant, can there is residual aluminum in process water.It was reported, aluminium is one of reason of the encephalopathy such as senile dementia caused also known as Alzheimer (Alzheimer's disease).In Korea S, from 1996, the aluminum concentration limited in tap water was 0.2 ㎎/below l, and in order to process waste water, a large amount of aluminium system inorganic coagulant that uses is subject to great limitation.If it is excessive that molysite system inorganic coagulant uses, then processing water can be rubescent, and produces a lot of mud, and owing to producing iron bacteria (Iron bacteria), causing peculiar smell, or be deposited in water pipe, produce incrustation scale (scale).
Fluorine element is strong due to chemically reactive, reacts for number of chemical.Especially in cleaning and etching, use the waste water of the electronic product plant emissions of fluorochemicals with Sodium Fluoride (NaF), aluminum fluoride (AlF
3), hydrogen fluoride (HF) form contains a large amount of fluorine element, and process waste water is very difficult, and the emission standard that Korea S's water quality environment saves these fluorochemicals of law regulation from damage is below 15ppm, and atmospheric environment saves the emission standard of law regulation vapor-phase fluoride from damage.
The method of process fluoride waste has the method making spent ion exchange resin and porous aluminum substantially, uses the precipitator method of Ca compound and Al compound, uses the precipitator method etc. of rare-earth compounds.And make the method for spent ion exchange resin and porous aluminum, because exchange capacity exists limitation, be difficult to be applicable to Industrial Wastewater Treatment, industry goes usually to be suitable for the precipitator method relying on Ca and Al or rare-earth compounds in fluorine.
When using Ca and Al compound to remove fluorine, although COD(chemical oxygen demand (COD) can be removed simultaneously, Chemical Oxygen Demand), its fluoride ion removing efficiency is low, exists and throws in the defect that dosage is large, produce a lot of mud.
And utilize the method for rare-earth compounds, although it goes fluorine efficiency high, throw in dosage and process residue few, as removing fluorine agent excellent performance, its efficiency removing COD in waste water is not enough.Thus, want by rare-earth compounds remove simultaneously non-in fluorine and COD time, need a large amount of to throw in expensive rare earth element, and when using other to remove the water conditioner of COD specially, can exist and allow operation become complicated, add the problem of large equipment.
And No. 10-0984448th, Republic of Korea's registered patent discloses a kind of waste water goes fluorine method, it utilizes the reduced blast furnace (slag) of electric smelter (electric furnace), the fluorine in steady removal high-concentration fluorine-containing waste water.
Its disclosed concrete ins and outs, for comprising the 1st step, after fluoride waste is poured into packed tower, throw in electric smelter reduced blast furnace, with fluorite (CaF in described packed tower
2) form, precipitation removes the fluorine in waste water; 2nd step, injects reaction coagulating bath the waste water of the 1st step, throws in slaked lime (Ca (OH)
2), the remaining fluorine element in coagulation sedimentation waste water; 3rd step, is discharged to settling bath the waste water after enforcement the 2nd step, only discharges supernatant liquor; The fluorine in waste water is removed by these steps.
But the waste water of prior art goes fluorine method, not only need the packed tower, the facility such as reaction coagulating bath and settling bath etc. that use process high-concentration fluorine-containing waste water, increase economical load, and the 1st, 2 steps drop into and allow the electric smelter reduced blast furnace of fluorine generation agglutination reaction and slaked lime (Ca (OH)
2), make operating efficiency and go fluorine efficiency significantly to reduce.
Look-ahead technique document
Patent documentation
No. 10-0984448th, (patent documentation 1) Republic of Korea registered patent publication (date of registration: on 09 20th, 2010)
Summary of the invention
The problem of invention
The present invention is the invention proposed to solve above-mentioned existing issue point, its object is to provide a kind of for removing the water treatment inorganic coagulant of fluorine, rely on aluminium and basicity and magnesium that fluorine generation reaction time of blood coagulation in waste water works as important factor, obtain the magnalium muriate state inorganic coagulant improving and go fluorine ability, improve fluorine efficiency further by this inorganic coagulant.
Another object of the present invention is to provide a kind of for going the water treatment inorganic coagulant manufacture method of fluorine, weakly alkaline chlorination magnalium is manufactured by improving the magnalium chlorination states of matter inorganic coagulant going fluorine ability, lower water or the fluorine-containing generation agglutination reaction of stain disease is allowed by chemical treatment, make it to form throw out and be easy to precipitation, further raising fluorine agglutinability, improve and go fluorine efficiency, reduce sludge creation amount to greatest extent, significantly reduce waste water and go fluorine processing costs.
Embodiment
In order to achieve the above object, the invention provides a kind of for removing the water treatment inorganic coagulant of fluorine, it is characterized in that:
Mixing aluminium hydroxide (Al (OH)
3) 30 ~ 35 % by weight, hydrochloric acid (HCl) 65 ~ 70 % by weight forms mixing synthetics,
Comprise described mixing synthetics 57 ~ 65 % by weight, magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H2O) 17 % by weight.
Described magnesium compound be selected from magnesium sulfate, magnesium chloride, magnesium oxide, magnesium hydroxide a certain.
In addition, the invention provides a kind of for going the water treatment inorganic coagulant manufacture method of fluorine, it is characterized in that: comprise
A () is uniformly mixed aluminium hydroxide (Al (OH)
3) 30 ~ 35 % by weight, hydrochloric acid (HCl) 65 ~ 70 % by weight allocates the step of mixture;
(b) the mixture of described (a) step, at temperature 100 ~ 200 DEG C and pressure 3 ~ 5kgf/cm
2under condition, react 6 ~ 8 hours, generate the step containing muriatic 1 synthetics of aluminium that following chemical formula (1) represents;
[Al
2(OH) nCl
6-n] m (in formula n=0.6, m=10) ... ... .... chemical formula (1)
(c) 1 of described (b) step synthetics 57 ~ 65 % by weight, magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H
2o) 17 % by weight, be uniformly mixed while 50 ~ 70 minutes with 70 ~ 90 DEG C of heating temperatures, generate the step of 2 syntheticss;
D () with 30 ~ 80 DEG C, 30 ~ 90rpm condition, stirs 2 of described (c) step syntheticss 0.5 ~ 1 hour, manufacture containing aluminium muriate and the step obtaining stable weakly alkaline chlorination magnalium (AMC) synthetics containing magnesium muriate.
The magnesium compound of described (c) step be selected from magnesium sulfate, magnesium chloride, magnesium oxide, magnesium hydroxide a certain.
The weakly alkaline chlorination magnalium that described (d) step manufactures, its aluminum oxide (Al
2o
3) concentration is 5 ~ 15%, basicity be 0.1 ~ 10% and magnesium density be 0.1 ~ 5%.
Invention effect
The invention provides a kind of for removing the water treatment inorganic coagulant of fluorine, rely on aluminium and basicity and magnesium that fluorine generation reaction time of blood coagulation in waste water works as important factor, obtain the magnalium muriate state inorganic coagulant improving and go fluorine ability, fluorine efficiency can be improved further by this inorganic coagulant.
The invention provides a kind of for going the water treatment inorganic coagulant manufacture method of fluorine, weakly alkaline chlorination magnalium is manufactured by improving the magnalium chlorination states of matter inorganic coagulant going fluorine ability, lower water or the fluorine-containing generation agglutination reaction of stain disease is allowed by chemical treatment, can make it to form throw out and be easy to precipitation, further raising fluorine agglutinability, improve and go fluorine efficiency, sludge creation amount can be reduced to greatest extent, significantly reduce waste water and go fluorine processing costs.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, carry out clear, complete description below to the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
Below, to of the present invention for going the water treatment inorganic coagulant embodiment of fluorine to be described in detail.
Of the present invention for removing the water treatment inorganic coagulant of fluorine, its mixing aluminium hydroxide (Al (OH)
3) 30 ~ 35 % by weight, hydrochloric acid (HCl) 65 ~ 70 % by weight forms mixing synthetics,
In addition, described mixing synthetics 57 ~ 65 % by weight is comprised, magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H
2o) 17 % by weight.
Described magnesium compound be selected from magnesium sulfate, magnesium chloride, magnesium oxide, magnesium hydroxide a certain.
Below, to of the present invention for going the water treatment inorganic coagulant manufacture method of fluorine to be described in detail.
Fig. 1 is of the present invention for removing the water treatment inorganic coagulant manufacture method schema of fluorine.First in (a) step, relative to aluminum oxide (Al
2o
3) concentration be 50 ~ 65% aluminium hydroxide (Al (OH)
3) 30 ~ 35 % by weight, be uniformly mixed the hydrochloric acid (HCl) 65 ~ 70 % by weight that concentration is 30 ~ 35%, allotment mixture.Described aluminium hydroxide (Al (OH)
3) when being below 30 % by weight, relatively allow the combined amount of hydrochloric acid (HCl) be increased to more than 70 % by weight, be difficult to manufacture mixture---containing aluminium muriate, and described aluminium hydroxide (Al (OH)
3) when being more than 65 % by weight, due to excessive mixing, can not be formed containing aluminium muriate.Therefore, as allotment ratio of the present invention, mixing aluminium hydroxide (Al (OH)
3) 30 ~ 35 % by weight, hydrochloric acid (HCl) 65 ~ 70 % by weight forms mixture and is advisable.
In addition, if aluminium hydroxide (Al (OH)
3) aluminum oxide (Al
2o
3) concentration is less than 50% or more than 65%, then can not cause fluorine element agglutination reaction contained by waste water very well.So described aluminium hydroxide (Al (OH)
3) aluminum oxide (Al
2o
3) concentration is 50 ~ 65%, hydrochloric acid (HCl) concentration mixed with it is 30 ~ 35%.
In (b) step, the aluminium hydroxide of described (a) step (Al (OH)
3) and hydrochloric acid (HCl) mixture, at temperature 100 ~ 200 DEG C and pressure 3 ~ 5kgf/cm
2under condition, react 6 ~ 8 hours, generate that following chemical formula (1) represents containing muriatic 1 synthetics of aluminium.
[Al2 (OH) nCl6-n] m (in formula n=0.6, m=10) ... ... .... chemical formula (1)
Here, if described aluminium hydroxide (Al (OH) 3) and hydrochloric acid (HCl) mixture, with less than 100 DEG C heating temperatures 6 ~ 8 hours, be then difficult to generate containing aluminium muriate, if described aluminium hydroxide (Al (OH)
3) and hydrochloric acid (HCl) mixture, with more than 200 DEG C heating temperatures 6 ~ 8 hours, then containing the aluminum oxide (Al in aluminium muriate
2o
3) concentration can be too high, is difficult to manufacture aftermentioned for removing magnalium muriate (AMC) synthetics of fluorine.Therefore, described aluminium hydroxide (Al (OH)
3) and hydrochloric acid (HCl) mixture, at temperature 100 ~ 200 DEG C and pressure 3 ~ 5kgf/cm
2under condition, react and be advisable for 6 ~ 8 hours.
The reaction of described step (b) manufacture containing aluminium muriate, the concentration of its aluminum oxide is 5 ~ 17%.
In addition, stable containing the muriatic step of aluminium---in (c) step, relative to 1 synthetics 57 ~ 65 % by weight of described (b) step, add magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H
2o) 17 % by weight, be uniformly mixed while 50 ~ 70 minutes with 70 ~ 90 DEG C of heating temperatures, generate 2 syntheticss.Here, if the blending ratio of described 1 synthetics is more than less than 57 % by weight or 65 % by weight, then the ratio of mixture regular meeting of magnesium compound becomes less than more than 4 % by weight or 1 % by weight, is difficult to manufacture the magnalium muriate being used for chemical treatment fluorine element.Therefore, as blending ratio of the present invention, relative to 1 synthetics 57 ~ 65 % by weight of described (b) step, add magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H
2o) 17 % by weight, carry out heating and be mixed into suitable.
Here, described magnesium compound be selected from magnesium sulfate, magnesium chloride, magnesium oxide, magnesium hydroxide a certain.
Next, in (d) step, 2 of described (c) step syntheticss with 30 ~ 80 DEG C, 30 ~ 90rpm velocity conditions, stir 0.5 ~ 1 hour, allow and be combined in containing in aluminium muriate containing magnesium muriate, manufacture the weakly alkaline chlorination magnalium of stabilization of state.
Water treatment inorganic coagulant for removing fluorine---the weakly alkaline chlorination magnalium of manufacture like this, its aluminum oxide (Al
2o
3) concentration is 5 ~ 15%, basicity be 0.1 ~ 10% and magnesium density be 0.1 ~ 5%.
Manufacture of the present invention is for removing the water treatment inorganic coagulant of fluorine---weakly alkaline chlorination magnalium, lower water or the fluorine-containing generation agglutination reaction of stain disease is allowed by chemical treatment, can make it to form throw out and be easy to precipitation, further raising fluorine agglutinability, improves and goes fluorine efficiency can improve fluorine agglutinability further.
In addition, while described weakly alkaline chlorination magnalium can improve fluorine ability, by strengthening throw out (Floc), can financial loss be prevented, by improving waste water treatment efficiency, reducing the usage quantity of condensing agent, can processing costs be reduced.
Below, embodiments of the invention are described.
[embodiment 1]
In embodiment 1, mixed aluminium oxides (Al
2o
3) concentration be 57% aluminium hydroxide (Al (OH)
3) 260g and concentration be 36% hydrochloric acid (HCl) 670g, react 7 hours under 150 DEG C of conditions, manufacture aluminum oxide (Al
2o
3) concentration be 16.8% containing after aluminium muriate, mixing magnesium sulfate (MgSO
4) 11g and water 350g, under 65 DEG C of conditions, stablize 3 hours, manufacture weakly alkaline chlorination magnalium.
By described reaction, obtain aluminum oxide (Al
2o
3) concentration is 10.5%, basicity be 10% and magnesium density be 0.9% chlorination magnalium 100kg.
[embodiment 2]
In embodiment 1, mixed aluminium oxides (Al
2o
3) concentration be 55% aluminium hydroxide (Al (OH)
3) 290g and concentration be 36% hydrochloric acid (HCl) 700g, react 5 hours under 170 DEG C of conditions, manufacture aluminum oxide (Al
2o
3) concentration be 15.7% containing after aluminium muriate, mixing magnesium sulfate (MgSO
4) 15g and water 280g, under 72 DEG C of conditions, stablize 1 hour, manufacture weakly alkaline chlorination magnalium.
By described reaction, obtain aluminum oxide (Al
2o
3) concentration is 10.8%, basicity be 8% and magnesium density be 1.3% chlorination magnalium 100kg.
[experimental example 1]
The efficiency experimental result of the weakly alkaline chlorination magnalium that the embodiment of the present invention 1 manufactures is as shown in table 1.
Here, the former water of use is e-factory waste water, and Funing tablet is 37.3mg/L, and pH value is 9.4.In order to compare, tested by Tai-Ace S 150, aluminum chloride and synthetics of the present invention.
[table 1]
| Distinguish | Tai-Ace S 150 (7%) | Aluminum chloride (10%) | The present invention |
| Input amount (mg/L) | 1000 | 1000 | 1000 |
| Fluorine (mg/L) | 15.4 | 13.2 | 6.3 |
| Go fluorine efficiency (%) | 59% | 64% | 83% |
[experimental example 2]
The efficiency experimental result of the weakly alkaline chlorination magnalium that the embodiment of the present invention 1 manufactures is as shown in table 2.
Here, the former water of use is e-factory waste water, and Funing tablet is 34.5mg/L, and pH value is 8.4.In order to compare, tested by Tai-Ace S 150, aluminum chloride and synthetics of the present invention.
[table 2]
| Distinguish | Tai-Ace S 150 (7%) | Aluminum chloride (10%) | The present invention |
| Input amount (mg/L) | 1000 | 1000 | 1000 |
| Fluorine (mg/L) | 17.3 | 15.6 | 8.7 |
| Go fluorine efficiency (%) | 57% | 61% | 78% |
[experimental example 3]
The efficiency experimental result of the weakly alkaline chlorination magnalium that the embodiment of the present invention 2 manufactures is as shown in table 3.
Here, the former water of use is e-factory waste water, and Funing tablet is 18.2mg/L, and pH value is 7.8.In order to compare, tested by Tai-Ace S 150, aluminum chloride and synthetics of the present invention.
[table 3]
| Distinguish | Tai-Ace S 150 (7%) | Aluminum chloride (10%) | The present invention |
| Input amount (mg/L) | 500 | 500 | 500 |
| Fluorine (mg/L) | 7.5 | 5.6 | 4.6 |
| Go fluorine efficiency (%) | 57% | 61% | 78% |
[experimental example 4]
The efficiency experimental result of the weakly alkaline chlorination magnalium that the embodiment of the present invention 1 manufactures is as shown in table 4.
Here, the former water of use is e-factory waste water, and Funing tablet is 35.3mg/L, and pH value is 8.6.In order to compare, tested by Tai-Ace S 150, aluminum chloride and synthetics of the present invention.
[table 4]
| Distinguish | Tai-Ace S 150 (7%) | Aluminum chloride (10%) | The present invention |
| Input amount (mg/L) | 1000 | 1000 | 1000 |
| Fluorine (mg/L) | 17.2 | 13.2 | 9.8 |
| Go fluorine efficiency (%) | 51% | 62% | 72% |
Accompanying drawing explanation
Fig. 1 is of the present invention for removing the water treatment inorganic coagulant manufacture method schema of fluorine.
Claims (5)
1., for removing a water treatment inorganic coagulant for fluorine, it is characterized in that:
Mixing aluminium hydroxide (Al (OH) 3) 30 ~ 35 % by weight, hydrochloric acid (HCl) 65 ~ 70 % by weight forms mixing synthetics,
Comprise described mixing synthetics 57 ~ 65 % by weight, magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H
2o) 17 % by weight.
2. according to claim 1 for removing the water treatment inorganic coagulant of fluorine, it is characterized in that:
Described magnesium compound be selected from magnesium sulfate, magnesium chloride, magnesium oxide, magnesium hydroxide a certain.
3., for going a water treatment inorganic coagulant manufacture method for fluorine, it is characterized in that: comprise
A () is uniformly mixed aluminium hydroxide (Al (OH)
3) 30 ~ 35 % by weight, hydrochloric acid (HCl) 65 ~ 70 % by weight allocates the step of mixture;
(b) the mixture of described (a) step, at temperature 100 ~ 200 DEG C and pressure 3 ~ 5kgf/cm
2under condition, react 6 ~ 8 hours, generate the step containing muriatic 1 synthetics of aluminium that following chemical formula (1) represents;
[Al
2(OH) nCl
6-n] m (in formula n=0.6, m=10) ... ... .... chemical formula (1)
(c) 1 of described (b) step synthetics 57 ~ 65 % by weight, magnesium compound 1 ~ 4 % by weight, hydrochloric acid (HCl) 17 ~ 22 % by weight and water (H
2o) 17 % by weight, be uniformly mixed while 50 ~ 70 minutes with 70 ~ 90 DEG C of heating temperatures, generate the step of 2 syntheticss;
D () with 30 ~ 80 DEG C, 30 ~ 90rpm condition, stirs 2 of described (c) step syntheticss 0.5 ~ 1 hour, manufacture containing aluminium muriate and the step obtaining stable weakly alkaline chlorination magnalium (AMC) synthetics containing magnesium muriate.
4. according to claim 3 for going the water treatment inorganic coagulant manufacture method of fluorine, it is characterized in that:
The magnesium compound of described (c) step be selected from magnesium sulfate, magnesium chloride, magnesium oxide, magnesium hydroxide a certain.
5. according to claim 3 for going the water treatment inorganic coagulant manufacture method of fluorine, it is characterized in that:
The weakly alkaline chlorination magnalium that described (d) step manufactures, its aluminum oxide (Al
2o
3) concentration is 5 ~ 15%, basicity be 0.1 ~ 10% and magnesium density be 0.1 ~ 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126360.6A CN104944555A (en) | 2014-03-31 | 2014-03-31 | Inorganic coagulant for fluorine removing water treatment and production method of inorganic coagulant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126360.6A CN104944555A (en) | 2014-03-31 | 2014-03-31 | Inorganic coagulant for fluorine removing water treatment and production method of inorganic coagulant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104944555A true CN104944555A (en) | 2015-09-30 |
Family
ID=54159698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410126360.6A Pending CN104944555A (en) | 2014-03-31 | 2014-03-31 | Inorganic coagulant for fluorine removing water treatment and production method of inorganic coagulant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104944555A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034910A (en) * | 1988-12-19 | 1989-08-23 | 张万成 | The removing fluor in water method |
| JPH10137745A (en) * | 1996-11-11 | 1998-05-26 | Nec Corp | Treatment of fluorine-containing waste water |
| JPH10263532A (en) * | 1997-03-27 | 1998-10-06 | Nec Corp | Treatment of fluorine-containing waste water |
| CN1843959A (en) * | 2006-04-30 | 2006-10-11 | 长春水务(集团)有限责任公司 | High-alkalization degree poly-ion polymerized composite coagulant and preparation method thereof |
| CN1865173A (en) * | 2005-05-20 | 2006-11-22 | 廖明辉 | Fluorine-containing waste water treatment method and its treating agent |
| CN101041529A (en) * | 2006-03-14 | 2007-09-26 | 协和化学工业株式会社 | Drainge treating agent and method for reducing fluorin ion in drainge |
| CN101507911A (en) * | 2008-11-11 | 2009-08-19 | 中国科学院生态环境研究中心 | Defluorination absorbing material based on aluminum base composite oxides and its preparation method and use and special device of the preparation method |
| CN101830546A (en) * | 2010-04-13 | 2010-09-15 | 沈阳化工学院 | Poly-aluminum chloride-magnesium printing and dyeing wastewater coagulant and preparation method thereof |
-
2014
- 2014-03-31 CN CN201410126360.6A patent/CN104944555A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034910A (en) * | 1988-12-19 | 1989-08-23 | 张万成 | The removing fluor in water method |
| JPH10137745A (en) * | 1996-11-11 | 1998-05-26 | Nec Corp | Treatment of fluorine-containing waste water |
| JPH10263532A (en) * | 1997-03-27 | 1998-10-06 | Nec Corp | Treatment of fluorine-containing waste water |
| CN1865173A (en) * | 2005-05-20 | 2006-11-22 | 廖明辉 | Fluorine-containing waste water treatment method and its treating agent |
| CN101041529A (en) * | 2006-03-14 | 2007-09-26 | 协和化学工业株式会社 | Drainge treating agent and method for reducing fluorin ion in drainge |
| CN1843959A (en) * | 2006-04-30 | 2006-10-11 | 长春水务(集团)有限责任公司 | High-alkalization degree poly-ion polymerized composite coagulant and preparation method thereof |
| CN101507911A (en) * | 2008-11-11 | 2009-08-19 | 中国科学院生态环境研究中心 | Defluorination absorbing material based on aluminum base composite oxides and its preparation method and use and special device of the preparation method |
| CN101830546A (en) * | 2010-04-13 | 2010-09-15 | 沈阳化工学院 | Poly-aluminum chloride-magnesium printing and dyeing wastewater coagulant and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105883911B (en) | Fused salt chlorimation slag recycling processing method | |
| CN110040878B (en) | Advanced treatment method for fluorine-containing wastewater | |
| CN100497193C (en) | High polymer composite coagulant for treatment of oily waste water and making method thereof | |
| CN102731001B (en) | Phosphogypsum composite pretreatment technique | |
| US8147702B2 (en) | Method of making and using adsorbent to remove heavy metal from waste water | |
| CN107013924B (en) | Waste incineration fly ash treatment equipment and treatment method | |
| CN106906365A (en) | Rare earth oxide production wastewater treatment and rare earth recycling technique | |
| CN110054275A (en) | A kind of novel depth fluorine removal medicament and its application | |
| CN108128917A (en) | The method that multiple pollutant in Copper making waste acid is removed using Bayer process red mud | |
| CN104944554A (en) | Inorganic coagulant for fluorine-removing water treatment and preparation method of inorganic coagulant | |
| CN105036404A (en) | Zero discharge treatment method for acid wastewater generated by acid pickling and purification of quartz sand powder or feldspar sand powder | |
| Ramasamy et al. | Carbide sludge management in acetylene producing plants by using vacuum filtration | |
| CN117897359A (en) | Method and system for generating calcium carbonate | |
| CN101643260A (en) | Method for treating industrial waste water | |
| CN102432120A (en) | Method for comprehensively purifying wastewater produced in tungsten smelting ion exchange process | |
| CN106745139B (en) | A kind of processing method of fluorine-containing waste hydrochloric acid | |
| CN102826582B (en) | Method for producing impurity-bearing liquid calcium chloride by utilization of converter dedusting wastewater | |
| CN107585917A (en) | A kind of processing method of ceramic polished waste water | |
| CN207933046U (en) | A kind of Integrated Processing Unit of calcium fluoride sludge | |
| CN106698790A (en) | Comprehensive recycling method for graphite production wastewater | |
| CN106745308A (en) | The recovery and treatment method of titanium tetrachloride dust-slag collection | |
| KR20150103940A (en) | A inorganic coagulant of fluoride ion in water treatment and the preparation method thereof | |
| CN106186232A (en) | A kind of flocculant and preparation method thereof | |
| CN104944555A (en) | Inorganic coagulant for fluorine removing water treatment and production method of inorganic coagulant | |
| CN102992518A (en) | Treatment method of fluoride wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |