CN109867398A - A kind of efficient process integrated approach of amino acid fermentation waste liquid - Google Patents
A kind of efficient process integrated approach of amino acid fermentation waste liquid Download PDFInfo
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- CN109867398A CN109867398A CN201711256866.9A CN201711256866A CN109867398A CN 109867398 A CN109867398 A CN 109867398A CN 201711256866 A CN201711256866 A CN 201711256866A CN 109867398 A CN109867398 A CN 109867398A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a kind of efficient process integrated approaches of amino acid fermentation waste liquid, and by fermented waste fluid pre-concentration, neutralization stirring, neutralizer transports, slurry-spraying pelletizing is prepared；The amino acid fermentation waste liquid that the present invention is 3-4 using pH value, sulfuric acid, liquefied ammonia and phosphorus potassium additive are added after pipeline carries out multistage four-effect evaporation pre-concentration, it is sufficiently stirred, mixed, neutralized, the feed liquid being finally made prepares composite organic-inorganic fertilizer by slurry-spraying pelletizing.The present invention is dried under≤120 DEG C of low temperature hot airs using the granulating fluidized bed equipment of advanced negative-pressure guniting, the fine powder of generation through air pressure be milled it is broken after recycle, bulky grain coarse powder returns to granulating system after crushing and recycles, the product of the only qualified partial size of equipment output.Fertilizer finished particle prepared by the present invention is loosely uniform, lighter color, enters water and changes, fertilizer efficiency increases substantially.
Description
Technical field
The invention belongs to amino acid fermentation tail washings environmental protection treatment technical fields, and in particular to one kind is used for amino acid fermentation high concentration
The processing of organic wastewater and utilize method.
Background technique
Amino acid fermentation waste liquid refers to the waste liquid that fermentation liquid discharges after the modes such as sedimentation, film filtering extract amino acid.It gives up herein
Rich in solid matters suspended matter, plurality of inorganic salt, organic acid, biotin and reduced sugars such as amino acid, thallus, protein in liquid
Deng.It is a kind of COD, SO4 2-、NH4 +- N and thallus content are high, and the lower industrial wastewater of pH value, either direct emission, also
It is outlet after simple process, amino acid fermentation waste liquid can make a big impact to environment.
Universities and colleges, scientific research institutions, glutamate production enterprise etc. have made numerous studies around the processing problem of fermented waste fluid, such as
What proposes many Treatment process and method according to the characteristics of fermented waste fluid effectively handle.
In the use aspects of amino acid fermentation waste liquid, some benefits are carried out using fermented waste fluid culture unicellular yeast albumen
With others research rests on laboratory or lab scale stage, it is more difficult to realize industrialization, mainly have following several respects reason: 1.
Technology is immature；2. processing cost is high；3. being had been unable to meet with the increase of amino acid production using the method for microbiological treatment
The requirement of discharging of waste liquid；4. processing is not thorough.
Current each factory processes amino acid fermentation waste liquid adopts the technology that: fermented waste fluid → fox extracting thallus protein → multiple-effect
Concentration → slurry-spraying pelletizing → composite organic-inorganic fertilizer.This technique is the more satisfactory method of current processing amino acid fermentation waste liquid,
It effectively converted the pollutant in amino acid waste liquid, become the higher composite organic-inorganic fertilizer of economic value, but in this technique
Present in critical issue be during slurry-spraying pelletizing smoke secondary pollute the problem of.Fu Feng group is ground in this regard
Study carefully, and flue gas is analyzed for the first time, proposes the solution processing route of processing flue gas, obtain preferable effect, but
Haveing the defects that one-time investment in this technique, high that the device is complicated is huge.
A large amount of high concentration ammoniated wastewaters can be generated in glutamic acid production, the processing to this part waste liquid, industry is traditional at present
Method is to be evaporated concentration under vacuum conditions after being added into high polymer coagulant fox extracting thallus protein, and concentrate uses
Coal-fired hot-blast stove slurry-spraying pelletizing.Since the Blast Temperature is up to 900 DEG C or so, large amount of organic and ammonium sulfate when drying
Pyrogenetic reaction is generated under high temperature action, loss of effective components is big, and product dissolubility is low, and fertilizer efficiency also sharp fall can only be worked as
Make leftover bits and pieces sale.
In addition, a large amount of moisture evaporates under the action of high-temperature hot-air and forms steam in the process, here it is our institutes
The white flue gas seen.In relation to institution of higher learning and R&D institution's detection data show in flue gas containing a large amount of poisonous and harmful peculiar smell at
Point, a degree of pollution is caused to atmosphere.For this purpose, Baoji Fufeng Biotechnology Co., Ltd. and Xi'an Jiao great Deng colleges and universities join
It closes, flue gas progress indirect heat exchange or the condensation removal of direct spraying cooling will be first granulated by taking the lead in proposing by a series of discussions research
Vapor, the basic ideas then removed odors using plasma electrolysis macromolecular substances.Although organic in the flue gas after administering
Ingredient is very micro, is significantly less than national standard, but the steam and peculiar smell still difficulty that volatilize completely remove.
Summary of the invention
In order to overcome the drawbacks of the prior art, the present invention provides a kind of efficient process integrated approaches of amino acid fermentation waste liquid.
The present invention is after hc effluent is concentrated to a certain concentration, using the granulating fluidized bed equipment of advanced negative-pressure guniting at≤120 DEG C
Be dried under low temperature hot air, the fine powder of generation through air pressure be milled it is broken after recycle, bulky grain coarse powder returns after crushing and is granulated system
System recycles, only the product of output qualification partial size.
A kind of efficient process integrated approach of amino acid fermentation waste liquid of the present invention, is made by the steps:
Step 1: fermented waste fluid pre-concentration:
Multistage concentration is carried out to fermented waste fluid by four-effect evaporator, it is spare to obtain concentrate；
Step 2: neutralizing stirring:
Concentrate made from step 1 is put into agitator tank and is stirred, be gradually successively slowly added in whipping process sulfuric acid,
Liquefied ammonia, potassium and phosphorus are put into spare in holding vessel until stirring evenly；
Step 3: neutralizer transports:
Concentrate in holding vessel is heated up to 70-90 DEG C of heat preservation, passes through pipeline to pelletizer；
Step 4: slurry-spraying pelletizing:
1), check whether air pressure, circulating water pressure, water power and blower are normal；
2) low-pressure air main valve, air-introduced machine, air blower, are successively opened, valve opening 20%, it is micro- for keeping granulating fluidized bed system
Negative pressure state；Sequence opens whirlwind baiting valve, cloth bag outlet valve, pulse backblowing solenoid valve again；
3), sequence opens returning charge rotary valve, returning charge screw machine, elevator, prepares discharging；
4) air-introduced machine valve opening, is adjusted to 50%, it is tiny structure shape that adjustment air blower valve opening, which maintains air material system,
State；
5) temporary feed bin gate valve, is opened, material in feed bin is transported in elevator, to 12 tons of fertilizer of granulating fluidized bed interior laying
Material is used as bottom material, adjusts the frequency of air blower and air-introduced machine, and fluid height about reaches 220mm, do not had spray gun completely；
6), the 10-15min before laying primer procedure terminates, opens air heater steam valve preheated air, when temperature reaches
Open built-in spiral heater at 80 DEG C, set coil pipe pressure 0.3-0.4MPa, preheated fluidification bed 15-30min, by air-introduced machine,
Air blower air-valve is adjusted to normal aperture；
7) spray gun compressed air line ball valve, is opened, whitewashing is inserted into fluidized bed, when granulating fluidized bed inlet air temperature reaches
Shurry pump is opened when temperature reaches 90-95 DEG C on 120 DEG C, or single spray gun positioning plate, with the raising of inlet air temperature, is gradually increased
Stock pump electric machine frequency feed to metered flow, keeps on the plate near every bar spray gun temperature at 80-90 DEG C；
8), after granulating fluidized bed beginning material spray, bed pressure difference is gradually increasing, and opens outlet valve when pressure drop is in 7-8KPa, is led to
Crossing adjustment outlet valve aperture rises bed pressure drop slowly, until reaching pressure difference-3.0-- 4.0KPa；
9), sequence opens returning charge rotary valve, air pressure mill, pulverizer, vibration separation screen, elevator, starts to discharge, through classification sieve
The large particle of partial size > 2.5mm is returned granulating system after pulverizer crushes and is granulated again after choosing；The fine grained of partial size < 1.0mm
Object through air pressure be milled it is broken after return granulating system be granulated again；Finished product fertilizer of the partial size between 1.0-2.5mm is packed.
The amino acid fermentation waste liquid (water content is very high) that the present invention is 3-4 using pH value carries out multistage four through pipeline
Sulfuric acid, liquefied ammonia and phosphorus potassium additive are added after effect evaporation pre-concentration, is sufficiently stirred, mixed, neutralized, the feed liquid warp being finally made
It crosses slurry-spraying pelletizing and prepares composite organic-inorganic fertilizer.
Detailed description of the invention
Fig. 1 is processing flow schematic diagram of the invention.
Specific embodiment
Embodiment one
A kind of efficient process integrated approach of amino acid fermentation waste liquid, is made by the steps:
Step 1: fermented waste fluid pre-concentration:
Multistage concentration is carried out to fermented waste fluid by four-effect evaporator, it is spare to obtain concentrate；
Step 2: neutralizing stirring:
Concentrate made from step 1 is put into agitator tank and is stirred, be gradually successively slowly added in whipping process sulfuric acid,
Liquefied ammonia, potassium and phosphorus are put into spare in holding vessel until stirring evenly；
Step 3: neutralizer transports:
Concentrate in holding vessel is heated up to 80 DEG C of heat preservations, passes through pipeline to pelletizer；
Step 4: slurry-spraying pelletizing:
1), check whether air pressure, circulating water pressure, water power and blower are normal；
2) low-pressure air main valve, air-introduced machine, air blower, are successively opened, valve opening 20%, it is micro- for keeping granulating fluidized bed system
Negative pressure state；Sequence opens whirlwind baiting valve, cloth bag outlet valve, pulse backblowing solenoid valve again；
3), sequence opens returning charge rotary valve, returning charge screw machine, elevator, prepares discharging；
4) air-introduced machine valve opening, is adjusted to 50%, it is tiny structure shape that adjustment air blower valve opening, which maintains air material system,
State；
5) temporary feed bin gate valve, is opened, material in feed bin is transported in elevator, to 12 tons of fertilizer of granulating fluidized bed interior laying
Material is used as bottom material, adjusts the frequency of air blower and air-introduced machine, and fluid height about reaches 220mm, do not had spray gun completely；
6), the 10min before laying primer procedure terminates, opens air heater steam valve preheated air, when temperature reaches 80
DEG C when open built-in spiral heater, coil pipe pressure 0.3MPa, preheated fluidification bed 15min are set, by air-introduced machine, air blower air-valve
It is adjusted to normal aperture；
7) spray gun compressed air line ball valve, is opened, whitewashing is inserted into fluidized bed, when granulating fluidized bed inlet air temperature reaches
Shurry pump is opened when temperature reaches 92 DEG C on 120 DEG C, or single spray gun positioning plate, with the raising of inlet air temperature, is gradually increased
Shurry pump electric machine frequency keeps on the plate near every bar spray gun temperature at 85 DEG C to metered flow；
8), after granulating fluidized bed beginning material spray, bed pressure difference is gradually increasing, and is opened outlet valve when pressure drop is in 8KPa, is passed through
Adjustment discharging valve opening rises bed pressure drop slowly, until reaching pressure difference -3.0KPa；
9), sequence opens returning charge rotary valve, air pressure mill, pulverizer, vibration separation screen, elevator, starts to discharge, through classification sieve
The large particle of partial size > 2.5mm is returned granulating system after pulverizer crushes and is granulated again after choosing；The fine grained of partial size < 1.0mm
Object through air pressure be milled it is broken after return granulating system be granulated again；Finished product fertilizer of the partial size between 1.0-2.5mm is packed.
Embodiment two
A kind of efficient process integrated approach of amino acid fermentation waste liquid, is made by the steps:
Step 1: fermented waste fluid pre-concentration:
Multistage concentration is carried out to fermented waste fluid by four-effect evaporator, it is spare to obtain concentrate；
Step 2: neutralizing stirring:
Concentrate made from step 1 is put into agitator tank and is stirred, be gradually successively slowly added in whipping process sulfuric acid,
Liquefied ammonia, potassium and phosphorus are put into spare in holding vessel until stirring evenly；
Step 3: neutralizer transports:
Concentrate in holding vessel is heated up to 85 DEG C of heat preservations, passes through pipeline to pelletizer；
Step 4: slurry-spraying pelletizing:
1), check whether air pressure, circulating water pressure, water power and blower are normal；
2) low-pressure air main valve, air-introduced machine, air blower, are successively opened, valve opening 20%, it is micro- for keeping granulating fluidized bed system
Negative pressure state；Sequence opens whirlwind baiting valve, cloth bag outlet valve, pulse backblowing solenoid valve again；
3), sequence opens returning charge rotary valve, returning charge screw machine, elevator, prepares discharging；
4) air-introduced machine valve opening, is adjusted to 50%, it is tiny structure shape that adjustment air blower valve opening, which maintains air material system,
State；
5) temporary feed bin gate valve, is opened, material in feed bin is transported in elevator, to 12 tons of fertilizer of granulating fluidized bed interior laying
Material is used as bottom material, adjusts the frequency of air blower and air-introduced machine, and fluid height about reaches 220mm, do not had spray gun completely；
6), the 15min before laying primer procedure terminates, opens air heater steam valve preheated air, when temperature reaches 85
DEG C when open built-in spiral heater, coil pipe pressure 0.4MPa, preheated fluidification bed 30min are set, by air-introduced machine, air blower air-valve
It is adjusted to normal aperture；
7) spray gun compressed air line ball valve, is opened, whitewashing is inserted into fluidized bed, when granulating fluidized bed inlet air temperature reaches
Shurry pump is opened when temperature reaches 95 DEG C on 120 DEG C, or single spray gun positioning plate, with the raising of inlet air temperature, is gradually increased
Shurry pump electric machine frequency keeps on the plate near every bar spray gun temperature at 90 DEG C to metered flow；
8), after granulating fluidized bed beginning material spray, bed pressure difference is gradually increasing, and is opened outlet valve when pressure drop is in 8KPa, is passed through
Adjustment discharging valve opening rises bed pressure drop slowly, until reaching pressure difference -3.7KPa；
9), sequence opens returning charge rotary valve, air pressure mill, pulverizer, vibration separation screen, elevator, starts to discharge, through classification sieve
The large particle of partial size > 2.5mm is returned granulating system after pulverizer crushes and is granulated again after choosing；The fine grained of partial size < 1.0mm
Object through air pressure be milled it is broken after return granulating system be granulated again；Finished product fertilizer of the partial size between 1.0-2.5mm is packed.
The present invention takes positive solution to arrange for pollution problem caused by a large amount of tail gas generated in slurry-spraying pelletizing production
It applies.The dry tail gas of compound fertilizer has amount of heat, is calculated, and optimize to the water balance of system, is closed by system heat balance
Reason reduces tail desorption system and generates water containing solid waste using heat brought by tail gas, reduces and is granulated the negative of kiln processing tail gas water suction
Lotus, to reach raising system production capacity and the low consumed target of drop.
Due to the particularity of concentrate in step 1, if to reach expected concentrated effect is in four-effect evaporator
It can not complete, it is necessary to using multistage concentration.
In step 2 due to addition sulfuric acid, liquefied ammonia, potassium, after phosphorus nutrition element, concentrate has certain viscosity, is difficult
It is sufficiently mixed with supplementary material, such as uses high-tension apparatus, not only waste power, and remaining part sulphur in high power concentrate
Sour ammonium is more serious to the abrasion of equipment；And use blender ideal to the mixed effect of material, while saving power,
Expected purpose is reached, mixing is made to meet the physical property requirement of non-slurry pelletizing.
Since the mother liquor of concentration has than being rich in great, poor fluidity characteristic and fermented waste fluid in step 3
The substances such as carbohydrate, so mobility is poor, it is difficult to realize flowing transmission；Its mobility phase when temperature is maintained at 80 DEG C or so
To preferable, therefore coil pipe heating equipment is configured in holding vessel, guarantee that temperature is conveyed in 80 DEG C of progresss mobility industrialization.
In step 4 spray drying process be by the slurries of concentration by centrifugal turntable spray or nozzle spray to be formed it is small
Drop, under the action of high-temperature hot-air, the advantages of moisture, which evaporates rapidly, forms dry particle, the method, is:
1, high-temperature hot-air enters material feeding box and is uniformly mixed with feed liquid
After high-temperature hot-air enters material feeding box, the blocking of distribution grid in hopper is encountered, fraction high-temperature hot-air hangs down along distribution grid tangent line
Histogram enters feed liquid region to from side, and most of high-temperature hot-air moves backward along a tangential direction, meets with the hot wind of the other side,
It generates vortex and enters feed liquid region；Simultaneously, when hot wind moves rearwards to aperture area along a tangential direction, part hot wind passes through aperture
Into feed liquid region, so that high-temperature hot-air is sufficiently mixed with feed liquid.
2, Non-carbonized phenomenon
Since high-temperature hot-air is uniformly mixed with feed liquid, it is easier the relationship of control high-temperature hot-air and whitewashing amount, product will not carbon
Change, product is made to keep certain water content.
3, product dissolubility is good
Due to product Non-carbonized phenomenon, therefore water solubility is preferably.
4, energy consumption reduces
After installing above-mentioned hot air distribution plate additional, hot wind is uniformly mixed with feed liquid, and thermal energy is taken full advantage of in material feeding box, makes machine tail
End temperature declines to a great extent, and overcomes the scarce limit that tail temperature caused by mixing unevenly as high-temperature hot-air is excessively high, and the energy is lost.
The present invention is dried under≤120 DEG C of low temperature hot airs using the granulating fluidized bed equipment of advanced negative-pressure guniting,
The fine powder of generation through air pressure be milled it is broken after recycle, bulky grain coarse powder crush after return granulating system recycle, equipment output
The product of only qualified partial size.Fertilizer finished particle prepared by the present invention is loosely uniform, lighter color, enters water and changes, fertilizer efficiency is substantially
Degree improves；And since drying temperature is low, drying process does not generate secondary pollution ingredient, and exhaust gas is charred taste without feed liquid, is protecting
The utility value of resource is improved while environment, the performance of enterprises is obvious.
Claims (1)
1. a kind of efficient process integrated approach of amino acid fermentation waste liquid, it is characterized in that being made by the steps:
Step 1: fermented waste fluid pre-concentration:
Multistage concentration is carried out to fermented waste fluid by four-effect evaporator, it is spare to obtain concentrate；
Step 2: neutralizing stirring:
Concentrate made from step 1 is put into agitator tank and is stirred, be gradually successively slowly added in whipping process sulfuric acid,
Liquefied ammonia, potassium and phosphorus are put into spare in holding vessel until stirring evenly；
Step 3: neutralizer transports:
Concentrate in holding vessel is heated up to 70-90 DEG C of heat preservation, passes through pipeline to pelletizer；
Step 4: slurry-spraying pelletizing:
1), check whether air pressure, circulating water pressure, water power and blower are normal；
2) low-pressure air main valve, air-introduced machine, air blower, are successively opened, valve opening 20%, it is micro- for keeping granulating fluidized bed system
Negative pressure state；Sequence opens whirlwind baiting valve, cloth bag outlet valve, pulse backblowing solenoid valve again；
3), sequence opens returning charge rotary valve, returning charge screw machine, elevator, prepares discharging；
4) air-introduced machine valve opening, is adjusted to 50%, it is tiny structure shape that adjustment air blower valve opening, which maintains air material system,
State；
5) temporary feed bin gate valve, is opened, material in feed bin is transported in elevator, to 12 tons of fertilizer of granulating fluidized bed interior laying
Material is used as bottom material, adjusts the frequency of air blower and air-introduced machine, and fluid height about reaches 220mm, do not had spray gun completely；
6), the 10-15min before laying primer procedure terminates, opens air heater steam valve preheated air, when temperature reaches
Open built-in spiral heater at 80 DEG C, set coil pipe pressure 0.3-0.4MPa, preheated fluidification bed 15-30min, by air-introduced machine,
Air blower air-valve is adjusted to normal aperture；
7) spray gun compressed air line ball valve, is opened, whitewashing is inserted into fluidized bed, when granulating fluidized bed inlet air temperature reaches
Shurry pump is opened when temperature reaches 90-95 DEG C on 120 DEG C, or single spray gun positioning plate, with the raising of inlet air temperature, is gradually increased
Stock pump electric machine frequency feed to metered flow, keeps on the plate near every bar spray gun temperature at 80-90 DEG C；
8), after granulating fluidized bed beginning material spray, bed pressure difference is gradually increasing, and opens outlet valve when pressure drop is in 7-8KPa, is led to
Crossing adjustment outlet valve aperture rises bed pressure drop slowly, until reaching pressure difference-3.0-- 4.0KPa；
9), sequence opens returning charge rotary valve, air pressure mill, pulverizer, vibration separation screen, elevator, starts to discharge, through classification sieve
The large particle of partial size > 2.5mm is returned granulating system after pulverizer crushes and is granulated again after choosing；The fine grained of partial size < 1.0mm
Object through air pressure be milled it is broken after return granulating system be granulated again；Finished product fertilizer of the partial size between 1.0-2.5mm is packed.
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| CN201711256866.9A CN109867398A (en) | 2017-12-04 | 2017-12-04 | A kind of efficient process integrated approach of amino acid fermentation waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333437A (en) * | 2020-03-18 | 2020-06-26 | 济南微华源环保科技有限公司 | Method for treating corn steep liquor and fermentation waste mash in amino acid fermentation production process |
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| CN101337729A (en) * | 2007-07-03 | 2009-01-07 | 长春大成实业集团有限公司 | Processing process for fermentation waste liquid of lysine |
| CN101898909A (en) * | 2009-05-31 | 2010-12-01 | 倪丹仙 | Method for producing circular granular potassium and organic-inorganic compound fertilizer through organic waste liquor |
| CN102093110A (en) * | 2010-12-23 | 2011-06-15 | 欧美投资集团(内蒙古)生物科技有限公司 | Method for producing biological fermentation compound fertilizer by fermenting organic waste water with glutamic acid |
| CN106747821A (en) * | 2016-12-31 | 2017-05-31 | 新昌县迪斯曼科技有限公司 | The method of producing biological fermentation compound fertilizer by fermenting organic waste water with glutamic acid |
-
2017
- 2017-12-04 CN CN201711256866.9A patent/CN109867398A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337729A (en) * | 2007-07-03 | 2009-01-07 | 长春大成实业集团有限公司 | Processing process for fermentation waste liquid of lysine |
| CN101898909A (en) * | 2009-05-31 | 2010-12-01 | 倪丹仙 | Method for producing circular granular potassium and organic-inorganic compound fertilizer through organic waste liquor |
| CN102093110A (en) * | 2010-12-23 | 2011-06-15 | 欧美投资集团(内蒙古)生物科技有限公司 | Method for producing biological fermentation compound fertilizer by fermenting organic waste water with glutamic acid |
| CN106747821A (en) * | 2016-12-31 | 2017-05-31 | 新昌县迪斯曼科技有限公司 | The method of producing biological fermentation compound fertilizer by fermenting organic waste water with glutamic acid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333437A (en) * | 2020-03-18 | 2020-06-26 | 济南微华源环保科技有限公司 | Method for treating corn steep liquor and fermentation waste mash in amino acid fermentation production process |
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Application publication date: 20190611 |
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| RJ01 | Rejection of invention patent application after publication |