CN104548942A - Method for filtering fermentation products by nanometer porous carbon aerogel - Google Patents
Method for filtering fermentation products by nanometer porous carbon aerogel Download PDFInfo
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- CN104548942A CN104548942A CN201310472468.6A CN201310472468A CN104548942A CN 104548942 A CN104548942 A CN 104548942A CN 201310472468 A CN201310472468 A CN 201310472468A CN 104548942 A CN104548942 A CN 104548942A
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Abstract
The invention relates to a method for filtering fermentation products by nanometer porous carbon aerogel. The method comprises the following steps of before micro-filtration or in micro-filtration, adding carbon aerogel into the fermentation product solution at a filtration temperature of 25-65 DEG C, adding calcium chloride into the solution obtained by the step 1 and carrying out micro-filtration by a filter membrane at a temperature of 45 DEG C. Before micro-filtration or in micro-filtration, the nanometer porous aerogel is used for filtering the fermentation products. Compared with active carbon, the nanometer porous aerogel has a more stable work temperature and a stronger artificial molding capability, has unparalleled advantages in a micro-filtration process, solves the problem of blocking caused by micro-filtration, and improves filtration effects. In pre-treatment, the aerogel has excellent heat resistance and aperture adjustability and thus corresponding filtration processes can be designed according to different substances to be treated.
Description
Technical field
The invention belongs to carbon aerogels process microfiltration technical field, especially a kind of method using nano-grade porous aerogel to carry out tunning filtration.
Background technology
Recent years, microfiltration has become the key technology of numerous research and development.In recovery fermenting organism molecule, have two problems to limit the application of microfiltration, low transit dose and low transmission affect chief factors of success always.In general, a kind of method can be developed for producing this kind of product based on microfiltration, but under many circumstances, this method can not be at war with traditional solid-liquid isolation method, especially with the occasion needing foul frequently to wake up with a start on-the-spot extensive continuation method clearly in order to keep high permeability to worsen high transmission amount.
On filter membrane, although obtain greater advance for many years, microfiltration method blockage problem is still considered to the greatest problem being badly in need of solving.For the microfiltration being derived from fermentation culture medium product, all the more so.In order to make the blocking in fermentate microfiltration reduce to minimum, processing mode more advanced is at present using active carbon as filtering medium, and we see the surprising effect of active carbon in process microfiltration process.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of method using nano-grade porous aerogel to carry out tunning filtration is provided, solve the problem that microfiltration method exists blocking.
The present invention solves existing technical problem and takes following technical scheme to realize:
Use nano-grade porous aerogel to carry out a method for tunning filtration, comprise the following steps:
Step 1, microfiltration operation before or in microfiltration process, add carbon aerogels in the tunning solution at filtration temperature 25-65 DEG C;
Step 2, add calcium chloride process by step 1 gained solution, then use filter membrane and carry out microfiltration at 45 DEG C.
And the pH value that described step 1 obtains solution is 5.2.
And described tunning is protein.
And the addition of described carbon aerogels is 0.1 ~ 1% of the initial volume of tunning solution.
And the concentration of described calcium chloride solution is 2.00%w/w.
And described filter membrane adopts 1m
2pallSep PS10VMF type filter membrane.
And the method for described microfiltration is batch process or continuity method.
Advantage of the present invention and good effect are:
The present invention is before microfiltration operation or use nano-grade porous aerogel to carry out fermentation-derived product in microfiltration process, because nano-grade porous aerogel compares active carbon, there is more stable operating temperature, and stronger artificial moulding ability (both manufacturing pore size according to predeterminated target), incomparable advantage is had in process microfiltration process, solve the problem that microfiltration method exists blocking, improve filter effect, simultaneously, in pre-treatment, the temperature capacity splendid due to carbon aerogels and the adjustability on aperture, corresponding filter method can be formulated for different treated substances.
Detailed description of the invention
Below to being further described the present invention in conjunction with the embodiments.
Use nano-grade porous aerogel to carry out a method for tunning filtration, comprise the following steps:
Step 1, microfiltration operation before or in microfiltration process, add carbon aerogels in the tunning solution under filtration temperature 25-65 degree Celsius, and pH value be adjusted to 5.2;
In this step, the addition of carbon aerogels is 0.1 ~ 1% of the initial volume of fermentation culture medium, and in the present embodiment, add the carbon aerogels with 0.2% in 100% water in the savinase culture of fermentation, described tunning is protein.
Step 2, add calcium chloride process by step 1 gained solution, then use filter membrane and carry out microfiltration at 45 DEG C.
In this step, the concentration of described calcium chloride solution is 2.00%(w/w); That described filter membrane adopts is 1m
2pallSep PS10VMF type filter membrane.The method of described microfiltration is batch process or continuity method.
It is emphasized that; embodiment of the present invention is illustrative; instead of it is determinate; therefore the present invention includes the embodiment be not limited to described in detailed description of the invention; every other embodiments drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (7)
1. use nano-grade porous aerogel to carry out a method for tunning filtration, it is characterized in that, comprise the following steps:
Step 1, microfiltration operation before or in microfiltration process, add carbon aerogels in the tunning solution at filtration temperature 25-65 DEG C;
Step 2, add calcium chloride process by step 1 gained solution, then use filter membrane and carry out microfiltration at 45 DEG C.
2. a kind of method using nano-grade porous aerogel to carry out tunning filtration according to claim 1, is characterized in that: the pH value that described step 1 obtains solution is 5.2.
3. a kind of method using nano-grade porous aerogel to carry out tunning filtration according to claim 1, is characterized in that: described tunning is protein.
4. a kind of method using nano-grade porous aerogel to carry out tunning filtration according to claim 1, is characterized in that: the addition of described carbon aerogels is 0.1 ~ 1% of the initial volume of tunning solution.
5. a kind of method using nano-grade porous aerogel to carry out tunning filtration according to claim 1, is characterized in that: the concentration of described calcium chloride solution is 2.00%.
6. a kind of method using nano-grade porous aerogel to carry out tunning filtration according to claim 1, is characterized in that: described filter membrane adopts 1m
2pallSep PS10VMF type filter membrane.
7. a kind of method using nano-grade porous aerogel to carry out tunning filtration according to claim 1, is characterized in that: the method for described microfiltration is batch process or continuity method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472468.6A CN104548942A (en) | 2013-10-11 | 2013-10-11 | Method for filtering fermentation products by nanometer porous carbon aerogel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472468.6A CN104548942A (en) | 2013-10-11 | 2013-10-11 | Method for filtering fermentation products by nanometer porous carbon aerogel |
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| Publication Number | Publication Date |
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| CN104548942A true CN104548942A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310472468.6A Pending CN104548942A (en) | 2013-10-11 | 2013-10-11 | Method for filtering fermentation products by nanometer porous carbon aerogel |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429131A (en) * | 2000-05-18 | 2003-07-09 | 诺维信公司 | Microfiltration using activated carbon |
| CN102847511A (en) * | 2012-09-27 | 2013-01-02 | 赵思沉 | Preparation method and application of purification, sterilization and self-cleaning integrated photosensitive adsorption column material |
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2013
- 2013-10-11 CN CN201310472468.6A patent/CN104548942A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429131A (en) * | 2000-05-18 | 2003-07-09 | 诺维信公司 | Microfiltration using activated carbon |
| CN102847511A (en) * | 2012-09-27 | 2013-01-02 | 赵思沉 | Preparation method and application of purification, sterilization and self-cleaning integrated photosensitive adsorption column material |
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Application publication date: 20150429 |