CN1032908A - Utilize grade diatomaceous process filter aid and from its waste water, reclaim the water purification agent method - Google Patents
Utilize grade diatomaceous process filter aid and from its waste water, reclaim the water purification agent method Download PDFInfo
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- CN1032908A CN1032908A CN 88106353 CN88106353A CN1032908A CN 1032908 A CN1032908 A CN 1032908A CN 88106353 CN88106353 CN 88106353 CN 88106353 A CN88106353 A CN 88106353A CN 1032908 A CN1032908 A CN 1032908A
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- sulfuric acid
- filter aid
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Abstract
The present invention is that a kind of super-cell processing technology reaches from the method for the waste water reclaim sulfuric acid aluminium water purifying agent of its discharging.Its technological process is with the oven dry of mine original soil, fragmentation, calcining, constant temperature add sulfuric acid reaction, the hot wash press filtration, oven dry, batching stirring, calcining, constant temperature, hot wash, dry, pulverize, screening and making; With wastewater test, the adjustment pH value of collecting, concentrate, crystallisation by cooling is the water purification agent finished product again again.
Technology of the present invention is easy, and products obtained therefrom quality height is social and good in economic efficiency.
Description
The present invention relates to beverage and filter filter aid and water quality cleansing agent field, particularly with ore deposit inferior original soil process high-quality diatom soil filter aid with and produce after waste water reclaim sulfuric acid aluminium water purifying agent (abbreviation filter aid processing technology and reclaim sulfuric acid aluminium method).
Beverage industry (mainly being beer) goes up the filter aid that filters usefulness at present several kinds, and best is the filter aid of processing with diatomite.Diatomite mainly is divided into garden sieve algae and direct-connected algae etc. from its structure, as the diatomite of processing filter aid, requires to contain silica more than 80%, contains diatom greater than 80%, and impurity contents such as alundum (Al and di-iron trioxide are very low.Saying relatively, contain the high more diatomite of silica, is the desirable feedstock as filter aid, and still, the diatomite of this quality whole nation reserves seldom; Ropy diatomite, diatom only account for about 50%, and silica has only about 65%, and alundum (Al is up to 18%, and di-iron trioxide is up to 9%, and this class diatomite is quite abundant at my reserves.
Purpose of the present invention, for the diatom original soil that makes a large amount of poor qualities is developed, the super-cell that provides a kind of usefulness diatom original soil inferior to be processed into the requisite quality standard reclaims the aluminum sulfate water purification agent with the waste water of producing the back discharging simultaneously.This technological process is simple, and the product quality height that obtains can be changed waste materials into sth. useful again.
Be to implement technological process of the present invention and step explanation below:
Mine original soil (being diatom original soil) → dry to water content 15～20% → fragmentation 6～8 mesh sieve branch → calcination, constant temperature → sulfuric acid reaction → hot wash pressure
Add aluminum dross and sour water add thermal response → accent pH value 2.8～3.2 →
Gravity Baume 28～crystallisation by cooling got solid sulphuric acid aluminium in 32 o'clock through concentrating.
The explanation of process flow steps:
1. general mine original soil water content 50～60%, contain earth 20%, do to water content 15～20% through overbaking (solarization), at this moment, diatomite is loose, one bump promptly broken, earth is then opposite with diatomite, because of moisture content reduces, earth is formed tough and tensile walk by former completely mashed shape, with 6～8 purpose shaking screens diatomite and earth is separated;
Through above-mentioned steps with diatomite and earth separately after, also deposit about 30% alundum (Al and di-iron trioxide and other impurity in the diatomite; For further work, earlier with isolated diatomite the 1st time 500～850 degree calcination Celsius, constant temperature 45～150 minutes, this moment, silica was inertia, was not subjected to Temperature Influence during calcination, and impurity such as alundum (Al and di-iron trioxide are because high-temperature calcination, fully oxidation;
3. the silica in the sulfuric acid reaction, diatomite is insoluble to sulfuric acid, vitriolizations such as alundum (Al and di-iron trioxide, and the soil with 1: 2.5～3.5, acid solution carry out reacting in 6～8 hours at 90～120 degree Celsius, and reaction equation is:
Diatomite through reacting is by containing silica 66.23% originally, alundum (Al contains 14.58%, di-iron trioxide contains 5.77%, make dioxide-containing silica reach 94.38%, improve 42.5%, alundum (Al only contains 2.76%, removed 81.06%, di-iron trioxide only contains 0.457%, has removed 92.08%, the quality of chemical analysis all above Japan, the U.S. natural with China EC-101 board super-cell (seeing the back subordinate list for details);
4. hot wash press filtration, for guaranteeing in the above-mentioned sulfuric acid reaction impurity such as alundum (Al and di-iron trioxide to be removed as far as possible, therefore, when the reaction complex acid, be with the soil of butt behind calcination, constant temperature 1 gram and 98% sulfuric acid, 0.68～2 gram proportioning, reaction result, the spent acid press filtration is come out, the acid solution that behind precipitated crystal, leaches, its sulfuric acid is than being 50～70% before the original reaction, use in the time of can making down secondary response, also can be used to the reclaim sulfuric acid aluminium water purifying agent.To exist diatomaceous residual acid also need to be washed till till the pH value 6～7 then with the hot wash of 90 degree Celsius;
5. oven dry, batching stirring, calcination, constant temperature, the quality of super-cell, except that improving diatomaceous silica as far as possible, the calcination of also need preparing burden, make the meticulous or particles suspended of diatomite, screen by required grain size category requirement, at this moment, at first will wash good smart soil after 112～200 degree oven dry Celsius, add natrium carbonicum calcinatum and make cosolvent, add sodium chloride as aerating agent, the effect of sodium chloride also is to make aluminium oxide, iron oxide and titanium dioxide silicochromium to close, thereby improves the inherent quality of filter aid.Because super-cell slightly, carefully is speed and the clarity that directly has influence on filtration, for this reason, must do the processing of size distribution to super-cell, the present invention, mainly contain two kinds by the size distribution of filter aid: a kind of is that 150 orders (meal) add 5～10% natrium carbonicum calcinatum and 5～6% sodium chloride; A kind of is that 200 orders (fine powder) add 1～5% natrium carbonicum calcinatum and 1～4% sodium chloride, and two kinds of filter aids are all wanted the 2nd calcination in 850～1100 degree Celsius, constant temperature 1～2 hour;
6. hot wash, owing to added natrium carbonicum calcinatum and sodium chloride alkaline matter in calcination, the product meta-alkalescence so also need use hot wash after calcination, makes pH value be controlled at (pH value that refers to filtered beer) about 7;
7. when filtration contained the suspension of fine particle or gelatinous precipitate, other filter mediums were blocked easily, used super-cell of the present invention, can prevent to stop up, and helped to filter to carry out smoothly, and the removal of impurity is good.Before filtering by real requirement earlier with 17% meal, 20% fine powder Yu Tu on filter, remaining 63%, be added in equably with 0.5～3 kilogram deal and be filtered in the material by the material that is filtered per ton;
8. collect the waste water of this technological process discharging, the test pH value also need add aluminum dross and waste acid water and add thermal response at 90～100 degree Celsius as below 2.5, pH value is transferred to can discharge storage tank at 2.8～3.2 o'clock;
9. concentrate, measuring gravity Baume is 20～22 o'clock, has become liquid aluminium sulfate, and being concentrated to gravity Baume is 28～32 o'clock, can put pan tank into, and crystallisation by cooling just gets solid sulphuric acid aluminium.
Super-cell of the present invention is on probation through Nanning City brewery, / 1000 liters of super-cell addition 0.5～3 grams, respectively champagne and beer are filtered Xian Tu meal-fine powder-meal, every layer of super-cell 10 gram, bottom is that gauze (because of without filter) filters twice, 3 minutes/1000 milliliters of the rates of filtration, do contrast test with cottonseed cake, the no matter rate of filtration and effect, cottonseed cake filters and all is not so good as super-cell of the present invention.
By " Guangxi Medical College's labour health toxicology group is done this super-cell acute toxicity testing ", think that it is safe that this super-cell is used for beer filtration.
Super-cell of the present invention with Japan, the U.S. is natural and quality comparison sheet chemical analysis such as China EC-101 board super-cell (table back note):
Annotate: the filtration of beverage " beer ", it is high more that super-cell contains silica relatively, filter effect is good more, what hinder the rate of filtration mainly is alundum (Al and di-iron trioxide, ferric oxide content is high more simultaneously, can become redness during filter beverages, so make comparisons with silica, alundum (Al, di-iron trioxide in the table.
Claims (10)
1, a kind of super-cell processing technology reaches the method that reclaims water purification agent from its waste water, it is characterized in that realizing by following technological process:
Mine original soil → oven dry, fragmentation, screening → calcination, constant temperature → sulfuric acid are anti-
2, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method is characterized in that described mine original soil dries to water content 15～20%, separate with the screening of 6～8 order shaking screens.
3, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method is characterized in that the described diatomite that sieves out was 500～850 degree calcination, constant temperature Celsius 45～150 minutes.
4, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method is characterized in that described sulfuric acid reaction is to spend Celsius 90～120 with 1: 2.5～3.5 mud acid ratio to carry out reaction in 6～8 hours.
5, as claim 1,4 described filter aid processing technologys and reclaim sulfuric acid aluminium method, when it is characterized in that the sulfuric acid reaction complex acid, after sulfuric acid 0.68～2 gram proportioning reaction with butt soil 1 gram and 98%, also existing diatomaceous residual acid to need with Celsius 90 hot wash to the pH values of spending is 6～7.
6, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method, it is characterized in that the good smart soil of described hot wash is in 112～200 degree oven dry Celsius, add natrium carbonicum calcinatum and make cosolvent, add sodium chloride and make aerating agent 850～1100 degree calcination, constant temperature Celsius 1～2 hour.
7, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method is characterized in that the product meta-alkalescence of gained, need with hot wash pH value is controlled at about 7.
8, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method, the product that it is characterized in that gained is 150 orders (meal), add 5～10% natrium carbonicum calcinatums and 4～6% sodium chloride, 200 orders (fine powder) in addition, add 1～5% natrium carbonicum calcinatum and 1～4% sodium chloride, all spend calcination, constant temperature 1～2 hour Celsius 850～1100.
9, filter aid processing technology as claimed in claim 1 and reclaim sulfuric acid aluminium method is characterized in that test collects the waste water pH value and add aluminum dross and waste acid water when following 2.5 and spend Celsius 90～100 and add thermal response, and pH value is transferred to 2.8～3.2.
10, as claim 1,9 described filter aid processing technologys and reclaim sulfuric acid aluminium method, it is characterized in that will mix up the aluminum sulfate liquid of pH value concentrate, measuring gravity Baume and be 28～32 is that crystallisation by cooling gets the aluminum sulfate water purification agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106353 CN1017777B (en) | 1988-08-27 | 1988-08-27 | Method using low-quality diatomite to process filter aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106353 CN1017777B (en) | 1988-08-27 | 1988-08-27 | Method using low-quality diatomite to process filter aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032908A true CN1032908A (en) | 1989-05-17 |
| CN1017777B CN1017777B (en) | 1992-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88106353 Expired CN1017777B (en) | 1988-08-27 | 1988-08-27 | Method using low-quality diatomite to process filter aid |
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| Country | Link |
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| CN (1) | CN1017777B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361416B (en) * | 2011-07-07 | 2014-04-30 | 天津艾思科尔科技有限公司 | Atmospheric monitoring and air purifying tower for generating power by adopting solar energy and wind energy |
-
1988
- 1988-08-27 CN CN 88106353 patent/CN1017777B/en not_active Expired
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| Publication number | Publication date |
|---|---|
| CN1017777B (en) | 1992-08-12 |
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