CN1840540A - Method for reclaiming wastewater protein from animals and plants treatment - Google Patents
Method for reclaiming wastewater protein from animals and plants treatment Download PDFInfo
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- CN1840540A CN1840540A CN 200510019726 CN200510019726A CN1840540A CN 1840540 A CN1840540 A CN 1840540A CN 200510019726 CN200510019726 CN 200510019726 CN 200510019726 A CN200510019726 A CN 200510019726A CN 1840540 A CN1840540 A CN 1840540A
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Abstract
The disclosed protein recovery method from sewage comprises: adding 0.003-0.07wt% deproteinizing agent (46-52wt PVPP, 17-23wt propylene glycol alginate, 24-28wt sodium alginate or kalium alginate, 1-5wt edible gelatin, and 0.5-3wt bentonite and/or diatomite) into sewage to stir and form flocculation; centrifugal separating to obtain slurry. This invention can save 70% source than current technique, has yield more than 98%, and salt content less than 1%.
Description
Technical field
The invention belongs to proteinic separation and recovery technology, be specifically related to a kind of method for reclaiming wastewater protein from animals and plants treatment.
Background technology
Extract for fish meal processing soluble protein, up to the present, abroad (Peru, Chile account for global fish meal altogether and produces 42%) only has to have adopted less than 10% enterprise and changes the part soluble protein into solidifying egg white by heating, pressurization, and the mode that revaporization moisture is extracted reclaims protein.The problem that this mode exists is:
1, a large amount of absorption with the soluble protein (L type amino acid) that transforms by animals and plants easily is converted into the denatured protein (D type amino acid) that is difficult for passive plant absorbing.
2, pass through a large amount of energy of process need consumption (moisture content about 85% in the waste water) of heating, pressing mode transpiring moisture.
3, because of adopting heavy oil combustion, cause atmospheric pollution.
Domestic: the fish meal processing industry is separation and Extraction soluble protein in trade effluent not, but directly with its discharging.Also not having at present both at home and abroad which company or enterprise to produce the soluble proteins separating agent is used for extracting solubility animal/vegetable protein or vegetable-protein from the waste water that fish meal or bean vermicelli already discharge.
Summary of the invention
The object of the present invention is to provide a kind of employing protein isolation agent to carry out method for reclaiming wastewater protein from animals and plants treatment, to overcome above-mentioned deficiency.
Technical scheme of the present invention is: method for reclaiming wastewater protein from animals and plants treatment, it is in the waste water that contains soluble proteins after animals and plants are handled, 0.3/10000th～7 the protein isolation agent that adds the waste water weight of material, stir, after forming cotton-shaped cohesion, obtain molten slurry by centrifugation again, collect molten slurry; Described protein isolation agent comprises that monomer N-vinyl pyrrolidone NVP is PVPP, and mass parts is 46～52; Propylene glycol alginate, mass parts are 17～23; Sodium alginate or potassium alginate, mass parts are 24～28; Edible Gelatinum oxhide, mass parts are 1～5; Wilkinite and/or diatomite, mass parts are 0.5～3.
This method is saved the more energy than vacuum distilling technology, saves 70% the energy; It is higher that the finished product that obtains distills the content that obtains than original technology, and the rate of recovery reaches more than 98%; Opposite salt is lower, only less than 1%.(vacuum distilling technology is up to more than 13～16%).
Description of drawings
Accompanying drawing method for reclaiming wastewater protein from animals and plants treatment schema
Embodiment
The waste water that contains soluble proteins after present embodiment is processed with fish meal carries out water albumen and be recovered as example, but present method is not limited to the recovery of fish-protein, and the soluble proteins that contains that also can be used in the albumen processing waste waters such as meat, plant reclaims.
Protein isolation agent comprises that monomer N-vinyl pyrrolidone NVP is PVPP, and mass parts is 46～52; Propylene glycol alginate, mass parts are 17～23; Sodium alginate or potassium alginate, mass parts are 24～28; Edible Gelatinum oxhide, mass parts are 0～5; Wilkinite and/or diatomite, mass parts are 0～3.Here edible Gelatinum oxhide, wilkinite and diatomite be can not select for use, one or both combinations in edible Gelatinum oxhide, wilkinite and the diatomite or three kinds also can be selected for use.
The protein isolation agent of present embodiment comprises that monomer N-vinyl pyrrolidone NVP is PVPP, and mass parts is 46～52; Propylene glycol alginate, mass parts are 17～23; Sodium alginate or potassium alginate, mass parts are 24～28; Edible Gelatinum oxhide, mass parts are 1～5; Wilkinite and diatomite, mass parts are 0.5～3.
As shown in drawings, protein isolation agent is pressed the i.e. 30～500ppm of waste water weight of material 0.3/10000th～5.Join in the anchovy sauce proteinic wastewater pond, through the air compressor machine stirring and evenly mixing, just can make soluble proteins form cotton-shaped aggegation fast in 5 minutes, be sent to header tank afterwards, send in the horizontal helical type settling centrifuge with air compressor machine once more, just can obtain containing the molten slurry of fish of solid matter 18-35% by the centrifugation of horizontal helical type settling centrifuge, remove the moisture of 56-77% simultaneously.The concentration of the molten slurry of fish can be by changing the operating parameter regulated at will of whizzer, and the effective constituent rate of recovery has reached more than 98% in the anchovy sauce.Being discharged into protein collects in the pond.The molten slurry of collecting of fish carries out drying treatment.
The waste water of discharging from horizontal screw machine, except that still containing a spot of protein, it contains a large amount of colloids, after its secondary is collected, is adjusted to iso-electric point and makes its flocculation sediment, separates recyclable a certain amount of fish glue and a spot of protein again through disc separator.
The waste water of discharging from the video disc machine can reach country's three grades of marks emission standard behind membrane filtration.
Following table is the addition of protein isolation agent and the test result of rest time:
| Numbering | Addition ppm | Time of repose min | Observations |
| 1 | 100 | 5 | Flocculation rate is slow, and flocculating effect is relatively poor, the soluble proteins precipitation is less; The supernatant transparent luminosity equation |
| 2 | 200 | 5 | Flocculation rate is fast, and flocculating effect is good; The great amount of soluble albumen precipitation is arranged, but throw out is more bulk, supernatant liquor is limpid transparent |
| 3 | 300 | 5 | Flocculation rate is fast, and flocculating effect is good; The soluble proteins precipitation fully; Throw out is closely knit; Supernatant liquor is limpid transparent. |
| 4 | 400 | 5 | Flocculation rate is fast, and flocculating effect is good; The soluble proteins precipitation fully; Throw out is closely knit; Supernatant liquor is limpid transparent. |
| 5 | 500 | 5 | Flocculation rate is fast, and flocculating effect is good; The soluble proteins precipitation fully; Throw out is closely knit; Supernatant liquor is limpid transparent. |
| 6 | 30 | 10 | Flocculation rate is slow, and flocculating effect is relatively poor, the soluble proteins precipitation is less; The supernatant transparent luminosity equation |
| 7 | 700 | 5 | Flocculation rate is fast, and flocculating effect is good; The soluble proteins precipitation fully; Throw out is closely knit; Supernatant liquor is limpid transparent. |
By above simultaneous test as can be seen, in the soluble protein solution of 5-25%, add 300PPM～700PPM (in dry powder) soluble proteins separating agent, soluble protein is separated fully.
Claims (7)
1, a kind of method for reclaiming wastewater protein from animals and plants treatment, it is in the waste water that contains soluble proteins after animals and plants are handled, adds 0.3/10000th～7 protein isolation agent of waste water weight of material, stir, after forming cotton-shaped cohesion, obtain molten slurry by centrifugation again, collect molten slurry; Described protein isolation agent comprises that monomer N-vinyl pyrrolidone NVP is PVPP, and mass parts is 46～52; Propylene glycol alginate, mass parts are 17～23; Sodium alginate or potassium alginate, mass parts are 24～28; Edible Gelatinum oxhide, mass parts are 0～5; Wilkinite and/or diatomite, mass parts are 0～3.
2, method for reclaiming wastewater protein from animals and plants treatment according to claim 1, the weight that it is characterized in that described protein isolation agent is waste water weight of material 0.3/10000th～5.
3, method for reclaiming wastewater protein from animals and plants treatment according to claim 1, it is characterized in that stirring form cotton-shaped cohesion after, the material after handling is delivered in the header tank jar, deliver to again and carry out centrifugal treating in the whizzer.
4,, it is characterized in that described whizzer adopts the horizontal helical type settling centrifuge as method for reclaiming wastewater protein from animals and plants treatment as described in the claim 3.
5, as method for reclaiming wastewater protein from animals and plants treatment as described in claim 1 or 3, it is characterized in that the wastewater collection that described centrifugal treating is discharged, be adjusted to iso-electric point and make its flocculation sediment, separate through separating machine again, reclaim a certain amount of colloidalmaterial and a spot of protein.
6, method for reclaiming wastewater protein from animals and plants treatment according to claim 1 is characterized in that the described waste water that contains soluble proteins is the waste water that contains soluble proteins after the fish meal processing.
7, method for reclaiming wastewater protein from animals and plants treatment according to claim 1 is characterized in that collected molten slurry carries out drying treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510019726 CN1840540A (en) | 2005-11-03 | 2005-11-03 | Method for reclaiming wastewater protein from animals and plants treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510019726 CN1840540A (en) | 2005-11-03 | 2005-11-03 | Method for reclaiming wastewater protein from animals and plants treatment |
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| CN1840540A true CN1840540A (en) | 2006-10-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435679A (en) * | 2013-09-03 | 2013-12-11 | 江南大学 | Method for recycling protein from fish soluble |
| WO2017045087A1 (en) * | 2015-09-16 | 2017-03-23 | LATORRE SALAS, Héctor Rodrigo | Chemically modified clay and method for the precipitation and recovery of solids from industrial process water using an inorganic flocculent |
| CN109201347A (en) * | 2018-09-10 | 2019-01-15 | 江阴天江药业有限公司 | A kind of the combination solid-liquid separating method and device of Chinese medicine extract |
| CN115504598A (en) * | 2022-09-21 | 2022-12-23 | 中国电建集团昆明勘测设计研究院有限公司 | Gelatin production workshop wastewater treatment and recycling process |
-
2005
- 2005-11-03 CN CN 200510019726 patent/CN1840540A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435679A (en) * | 2013-09-03 | 2013-12-11 | 江南大学 | Method for recycling protein from fish soluble |
| WO2017045087A1 (en) * | 2015-09-16 | 2017-03-23 | LATORRE SALAS, Héctor Rodrigo | Chemically modified clay and method for the precipitation and recovery of solids from industrial process water using an inorganic flocculent |
| CN109201347A (en) * | 2018-09-10 | 2019-01-15 | 江阴天江药业有限公司 | A kind of the combination solid-liquid separating method and device of Chinese medicine extract |
| CN115504598A (en) * | 2022-09-21 | 2022-12-23 | 中国电建集团昆明勘测设计研究院有限公司 | Gelatin production workshop wastewater treatment and recycling process |
| CN115504598B (en) * | 2022-09-21 | 2024-05-14 | 中国电建集团昆明勘测设计研究院有限公司 | Wastewater treatment and recycling process for gelatin production workshop |
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