CN109502898A - A kind of recycling complete utilization method of rice protein production waste water - Google Patents
A kind of recycling complete utilization method of rice protein production waste water Download PDFInfo
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- CN109502898A CN109502898A CN201811463536.1A CN201811463536A CN109502898A CN 109502898 A CN109502898 A CN 109502898A CN 201811463536 A CN201811463536 A CN 201811463536A CN 109502898 A CN109502898 A CN 109502898A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of recycling complete utilization methods of rice protein production waste water, the treating method comprises following steps: (1) rice protein being produced the impurity in waste water and separated；(2) using the rice protein waste water after geotrichum candidum, saccharomycete, photosynthetic bacteria processing impurity elimination, mycoprotein is recycled；(3) by the waste water for recycling mycoprotein carry out the processing of ozone/hydrogen peroxide/activated carbon oxidation it is up to standard after, and then recycle.The present invention realizes the recycling complete utilization to rice protein production waste water, and obtained mycoprotein can be used for animal feed, improves economic value, and the waste water after processing is up to standard can be used for producing cleaning, punching ground.Present invention process is simple, and equipment is few, at low cost, can carry out recycling complete utilization to waste water.
Description
Technical field
The present invention relates to sewage treatment fields, more particularly, to a kind of recycling complete utilization side of rice protein production waste water
Method.
Background technique
It is larger that rice protein produces wastewater flow rate, if without direct emission, a large amount of albumen contained in one side waste water are handled
The valuable nutrient loss such as matter, carbohydrate, fat, causes the waste of resource；On the other hand this high concentrated organic wastewater is straight
Run in into rivers,lakes and seas, causes the frequent generation of red tide, wawter bloom, seriously pollute environment.Therefore, how effectively, efficiently to locate
Reason rice protein waste water is the thorny problem that enterprise must face.Meanwhile how to utilize waste water, change not only waste of resource but also pollution
The wastewater treatment status of environment, becomes the emphasis of scientific research.
COD content in every liter of rice protein waste water reaches 15000-25000mg, and BOD content reaches 5000-10000mg, dense
Degree is higher, belongs to the high-concentration waste water discharged in rice protein process, in addition, the aobvious acidity of the waste water, conductivity are high, perishable
It loses, BOD, COD are higher by hundreds times of state emission standard, and suspended matter also greatly exceeds national emission standard 70mg/L.
The method of processing rice protein sewage mainly has physical method, chemical method and biological activated sludge method, but object at present
Logos cannot really remove the organic matter in waste water, and chemical method is poor to highly concentrated organic matter removal effect, and low to concentration has
Machine object removes ratio more thoroughly, but organic matter is wasted, and biological activated sludge technical load is high, sludge yield is big, and difficult
Processing.These types of method fails to recycle nutriment therein, causes the wasting of resources to the equal direct emission of wastewater treatment.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the applicant provides a kind of moneys of rice protein production waste water
Source complete utilization method.The present invention is first using mycoprotein content, the higher geotrichum candidum of nutritional ingredient, saccharomycete, photosynthetic bacteria
Processing recycling mycoprotein is carried out to rice protein sewage afterwards, can be used as feed use；Simultaneously using ozone oxidation to waste water into
The processing of one step makes its oxidation operation carbon dioxide and water, and obtained water can do punching ground, production cleaning uses, this method
Realize the recycling complete utilization of rice protein production waste water.
Technical scheme is as follows:
A kind of recycling complete utilization method of rice protein production waste water, described method includes following steps:
(1) impurity elimination: strainer is installed in waste water tank entrance, the large granular impurity in rice protein waste water is intercepted；
(2) into the rice protein waste water after impurity elimination, Geotrichum, saccharomycete bacterium geotrichum candidum, saccharomycete pre-treatment: are accessed
Liquid, ferment 16-24h under conditions of temperature is 26-30 DEG C；
(3) photosynthetic bacteria post-processes: accessing photosynthetic bacteria liquid into the waste water handled by step (2), is in temperature
Ferment 24-48h under conditions of 26-30 DEG C, Mobile state culture of going forward side by side；
(4) mycoprotein recycle: the waste water to have fermented is separated by solid-liquid separation, collect filter residue carry out freeze-day with constant temperature, crushing,
Packaging；
(5) oxidation reprocessing；The clear liquid being separated by solid-liquid separation in step (4) is subjected to ozone/hydrogen peroxide/activated carbon oxidation；
(6) it is separated by filtration: separation will be filtered by the waste water of step (5) processing, finally obtained water is produced
It recycles.
The mesh number of strainer described in step (1) is 40-80 mesh.
Geotrichum described in step (2), saccharomycete bacterium solution additive amount be waste water weight 10-20%；It is described whitely
The mass ratio of mould and saccharomycete is 1:1-3.
The saccharomycete is candida tropicalis, candida utilis, in Candida lipolytica, Endomycopsis Fibnligera yeast
Two or more mixing.
The additive amount of photosynthetic bacteria liquid described in step (3) is the 10-20% of waste water weight.
Photosynthetic bacteria described in step (3) is the mixing of one or both of purple nonsulfur bacteria, Rhodopseudomonas spheroides.
The condition of dynamic cultivation described in step (3) are as follows: the revolving speed in waste water tank is 100-160r/min.
Separation of solid and liquid condition in step (4): revolving speed 5000-6000r/min, time 20-40min；The temperature of freeze-day with constant temperature
It is 50-55 DEG C.
The method of reprocessing is aoxidized described in step (5) are as follows: ozone is made using water cooling oxygen gas source ozone generator, together
When dissolution rate of the ozone in sewage is improved using ozone mixer, gas-liquid mixing pump, wherein the flow velocity of ozone generator is
1-3L/min, the additive amount of hydrogen peroxide are the 0.1%-0.4% of sewage total amount, and the additive amount of active carbon is sewage total amount
0.2%-0.5%, reaction time 60-120min.
The present invention is beneficial to be had the technical effect that
1, the present invention using Geotrichum and saccharomycete (candida tropicalis, candida utilis, Candida lipolytica,
Two or more in Endomycopsis Fibnligera yeast) Mixed Microbes carry out pre-treatment to rice protein waste water, by polysaccharide, protein etc.
Macromolecular substances resolve into monosaccharide, amino acid, low molecular organic acids, and have stronger decomposition and conversion capability to grease；
Due to ingredients such as carbohydrate rich in rice protein waste water, protein, fat, single bacterium is difficult to make full use of whole nutrition
Substance is needed to be mixed using the different strain of multiple nutritional characters, utilizes bacterial classification conversion of substrate nutriment
Difference, the organic matter in waste water is converted to recoverable single cell protein to the greatest extent.Geotrichum candidum can utilize can
Dissolubility carbohydrate and sulphur ammonium and urea can be preferably utilized, nutritive value is high, and mycoprotein content has excellent up to 45% or more
Benign energy；And saccharomycete can obtain dominant growth in meta-acid environment, reproduction speed is fast, mycoprotein content is high, it is non-toxic,
No pathogenicity, performance are stablized, and can use the organic matters such as macro-molecular protein, fat.And the saccharomycete performance of same kind is poor
It is different little, therefore geotrichum candidum dominant bacteria is selected to be used in mixed way with saccharomycete, it is utilized nutriment maximumlly.
2, the present invention post-processes rice protein waste water using photosynthetic bacteria, and wherein photosynthetic bacteria is purple nonsulfur bacteria, ball
Shape red pseudomonas, photosynthetic bacterial thallus cell contain protein, carbohydrate, also rich in vitamin and a variety of amino
Acid, bacterium mud itself are rich in protein, amino acid, can be used as feed addictive etc., have certain economic value, mycoprotein contains
Amount is up to 60% or so, and the cell component of photosynthetic bacteria is better than yeast and other types.But photosynthetic bacteria is to macromolecular substances benefit
It is slower with rate, it is fast using rate to low molecular organic acid, amino acid and carbohydrate.Therefore, the product of geotrichum candidum and saccharomycete
Exactly nutrient matrix needed for photosynthetic bacteria is handled by the front and back of these three bacterium, the nutriment in waste water is made full use of.
3, under dynamic condition of the present invention, photosynthetic bacteria can obtain more energy by respiration under micro- aerobic condition, mention
Height keeps the growth vigor of photosynthetic bacteria to the assimilative capacicy of small organic molecule.
4, the present invention uses the supernatant water that mycoprotein is removed after ozonation technology processing fermentation.Due to using bacterium to ferment
Water cannot be made to reach discharge standard, therefore subsequent use ozonation technology is further processed.Ozone is a kind of safe and pollution-free
High-efficient oxidant, treated, and water can be with recycling and reusing.But it is ineffective that ozone is used alone, and need to make in conjunction with other reagents
With.The present invention selects hydrogen peroxide, active carbon as catalyst, and hydrogen peroxide can promote a large amount of hydroxyl radical free radical to generate,
And active carbon is reducing substances, during peroxynitrite decomposition hydrogen, the surface of itself is also oxidized to oxidation susceptibility
Group participates in subsequent oxidation reaction, and active carbon has absorption, decolorization, additionally due to its porous structure, has and fix
Change thallus effect, settles the thallus not being kept completely separate from waste water, to increase separating effect.
5, the present invention improves dissolution rate of the ozone in sewage using mixer-gas-liquid mixing pump.The general ozone that improves exists
The method of hydrolysis dissolution rate has aeration, microjet, gas-liquid mixing pump, and wherein gas-liquid mixing pump effect is preferable, the dissolution rate of ozone
Ozone mixer equipment is increased again in 40%-70%, while in the present invention, further the more dissolution rate of ozone.
Specific embodiment
Below with reference to embodiment, the present invention is specifically described.
Embodiment 1
A kind of recycling complete utilization method of rice protein production waste water, described method includes following steps:
(1) impurity elimination: strainer (mesh number is 40 mesh) is installed in waste water tank entrance, by the large granular impurity in rice protein waste water
It intercepts；
(2) geotrichum candidum, saccharomycete pre-treatment: into the rice protein waste water after impurity elimination, access accounts for waste water weight 10%
Geotrichum, saccharomycete bacterium solution (mass ratio of Geotrichum and saccharomycete is 1:1), ferment under conditions of temperature is 26 DEG C
24h；The saccharomycete is candida tropicalis, candida utilis, Candida lipolytica mixes, weight ratio 1:1:
1；
(3) photosynthetic bacteria post-processes: into the waste water handled by step (2), access accounts for the photosynthetic thin of waste water weight 10%
Bacterium bacterium solution (purple nonsulfur bacteria), ferment 48h under conditions of temperature is 26 DEG C, and Mobile state culture of going forward side by side (turns in waste water tank
Speed is 160r/min)；
(4) mycoprotein recycles: by the waste water to have fermented under the conditions of revolving speed 5000r/min, being separated by solid-liquid separation
40min carries out freeze-day with constant temperature, crushing, packaging under the conditions of collecting 50 DEG C of filter residue；
(5) oxidation reprocessing；The clear liquid being separated by solid-liquid separation in step (4) is subjected to ozone/hydrogen peroxide/activated carbon oxidation,
Specific method is ozone to be made using water cooling oxygen gas source ozone generator, while coming using ozone mixer, gas-liquid mixing pump
Dissolution rate of the ozone in sewage is improved, wherein the flow velocity of ozone generator is 1L/min, and the additive amount of hydrogen peroxide is sewage
The 0.4% of total amount, the additive amount of active carbon are the 0.2% of sewage total amount, reaction time 120min；
(6) it is separated by filtration: separation will be filtered by the waste water of step (5) processing, finally obtained water is produced
It recycles.
Embodiment 2
A kind of recycling complete utilization method of rice protein production waste water, described method includes following steps:
(1) impurity elimination: strainer (mesh number is 60 mesh) is installed in waste water tank entrance, by the large granular impurity in rice protein waste water
It intercepts；
(2) geotrichum candidum, saccharomycete pre-treatment: into the rice protein waste water after impurity elimination, access accounts for waste water weight 15%
Geotrichum, saccharomycete bacterium solution (mass ratio of Geotrichum and saccharomycete is 1:2), ferment under conditions of temperature is 28 DEG C
20h；The saccharomycete is candida tropicalis, Candida lipolytica, the mixing of Endomycopsis Fibnligera yeast, and weight ratio is
1:1:1；
(3) photosynthetic bacteria post-processes: into the waste water handled by step (2), access accounts for the photosynthetic thin of waste water weight 15%
Bacterium bacterium solution (Rhodopseudomonas spheroides), ferment 36h under conditions of temperature is 28 DEG C, goes forward side by side Mobile state culture (in waste water tank
Revolving speed is 140r/min)；
(4) mycoprotein recycles: by the waste water to have fermented under the conditions of revolving speed 5500r/min, being separated by solid-liquid separation
30min carries out freeze-day with constant temperature, crushing, packaging under the conditions of collecting 53 DEG C of filter residue；
(5) oxidation reprocessing；The clear liquid being separated by solid-liquid separation in step (4) is subjected to ozone/hydrogen peroxide/activated carbon oxidation,
Specific method is ozone to be made using water cooling oxygen gas source ozone generator, while coming using ozone mixer, gas-liquid mixing pump
Dissolution rate of the ozone in sewage is improved, wherein the flow velocity of ozone generator is 2L/min, and the additive amount of hydrogen peroxide is sewage
The 0.3% of total amount, the additive amount of active carbon are the 0.4% of sewage total amount, reaction time 90min；
(6) it is separated by filtration: separation will be filtered by the waste water of step (5) processing, finally obtained water is produced
It recycles.
Embodiment 3
A kind of recycling complete utilization method of rice protein production waste water, described method includes following steps:
(1) impurity elimination: strainer (mesh number is 80 mesh) is installed in waste water tank entrance, by the large granular impurity in rice protein waste water
It intercepts；
(2) geotrichum candidum, saccharomycete pre-treatment: into the rice protein waste water after impurity elimination, access accounts for waste water weight 20%
Geotrichum, saccharomycete bacterium solution (mass ratio of Geotrichum and saccharomycete is 1:3), ferment under conditions of temperature is 30 DEG C
16h；The saccharomycete is candida tropicalis, candida utilis, Candida lipolytica, Endomycopsis Fibnligera yeast are mixed
It closes, weight ratio 1:1:1:1；
(3) photosynthetic bacteria post-processes: into the waste water handled by step (2), access accounts for the photosynthetic thin of waste water weight 20%
Bacterium bacterium solution (purple nonsulfur bacteria mixes with two kinds of Rhodopseudomonas spheroides, weight ratio 1:1), under conditions of temperature is 30 DEG C
For 24 hours, (revolving speed in waste water tank is 100r/min) for Mobile state culture of going forward side by side for fermentation；
(4) mycoprotein recycles: by the waste water to have fermented under the conditions of revolving speed 6000r/min, being separated by solid-liquid separation
20min carries out freeze-day with constant temperature, crushing, packaging under the conditions of collecting 55 DEG C of filter residue；
(5) oxidation reprocessing；The clear liquid being separated by solid-liquid separation in step (4) is subjected to ozone/hydrogen peroxide/activated carbon oxidation,
Specific method is ozone to be made using water cooling oxygen gas source ozone generator, while coming using ozone mixer, gas-liquid mixing pump
Dissolution rate of the ozone in sewage is improved, wherein the flow velocity of ozone generator is 3L/min, and the additive amount of hydrogen peroxide is sewage
The 0.1% of total amount, the additive amount of active carbon are the 0.5% of sewage total amount, reaction time 60min；
(6) it is separated by filtration: separation will be filtered by the waste water of step (5) processing, finally obtained water is produced
It recycles.
Claims (9)
1. a kind of recycling complete utilization method of rice protein production waste water, which is characterized in that described method includes following steps:
(1) impurity elimination: strainer is installed in waste water tank entrance, the large granular impurity in rice protein waste water is intercepted；
(2) geotrichum candidum, saccharomycete pre-treatment: into the rice protein waste water after impurity elimination, accessing Geotrichum, saccharomycete bacterium solution,
Ferment 16-24h under conditions of temperature is 26-30 DEG C；
(3) photosynthetic bacteria post-processes: accessing photosynthetic bacteria liquid into the waste water handled by step (2), is 26-30 in temperature
Ferment 24-48h under conditions of DEG C, Mobile state culture of going forward side by side；
(4) mycoprotein recycles: the waste water to have fermented being separated by solid-liquid separation, filter residue is collected and carries out freeze-day with constant temperature, crushing, packet
Dress；
(5) oxidation reprocessing；The clear liquid being separated by solid-liquid separation in step (4) is subjected to ozone/hydrogen peroxide/activated carbon oxidation；
(6) it is separated by filtration: separation will be filtered by the waste water of step (5) processing, finally obtained water is produced again sharp
With.
2. the method according to claim 1, wherein the mesh number of strainer described in step (1) is 40-80 mesh.
3. the method according to claim 1, wherein Geotrichum described in step (2), saccharomycete bacterium solution add
Dosage is the 10-20% of waste water weight；The mass ratio of the Geotrichum and saccharomycete is 1:1-3.
4. the method according to claim 1, wherein the saccharomycete is candida tropicalis, Candida utilis ferment
Mother, Candida lipolytica, two or more mixing in Endomycopsis Fibnligera yeast.
5. the method according to claim 1, wherein the additive amount of photosynthetic bacteria liquid described in step (3) is
The 10-20% of waste water weight.
6. the method according to claim 1, wherein photosynthetic bacteria described in step (3) be purple nonsulfur bacteria,
The mixing of one or both of Rhodopseudomonas spheroides.
7. the method according to claim 1, wherein the condition of dynamic cultivation described in step (3) are as follows: waste water tank
Interior revolving speed is 100-160r/min.
8. the method according to claim 1, wherein separation of solid and liquid condition in step (4): revolving speed 5000-
6000r/min, time 20-40min；The temperature of freeze-day with constant temperature is 50-55 DEG C.
9. the method according to claim 1, wherein the method for aoxidizing reprocessing described in step (5) are as follows: utilize
Ozone is made in water cooling oxygen gas source ozone generator, while improving ozone in sewage using ozone mixer, gas-liquid mixing pump
In dissolution rate, wherein the flow velocity of ozone generator is 1-3L/min, and the additive amount of hydrogen peroxide is the 0.1%- of sewage total amount
0.4%, the additive amount of active carbon is the 0.2%-0.5%, reaction time 60-120min of sewage total amount.
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2018
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|---|---|---|---|---|
| JPH08243592A (en) * | 1995-03-09 | 1996-09-24 | Ii M Kenkyu Kiko:Kk | Photooxidation water treating device provided with biological pretreatment and post treatment |
| CN101823810A (en) * | 2010-02-12 | 2010-09-08 | 贵州大学 | Method of reducing pollution and recycling organic matter for waste water of potato starch processing |
| CN102815795A (en) * | 2012-09-12 | 2012-12-12 | 广西民族大学 | Method for processing starch wastewater as well as product and application thereof |
| CN206680267U (en) * | 2017-04-21 | 2017-11-28 | 河南省水产科学研究院 | A kind of biological membrane water purifier of pond culture for carrying strain and culture medium |
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