CN104230444A - Method for preparing fertilizers with sodium glutamate production waste - Google Patents
Method for preparing fertilizers with sodium glutamate production waste Download PDFInfo
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- CN104230444A CN104230444A CN201410523839.3A CN201410523839A CN104230444A CN 104230444 A CN104230444 A CN 104230444A CN 201410523839 A CN201410523839 A CN 201410523839A CN 104230444 A CN104230444 A CN 104230444A
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Abstract
The method belongs to the field of biological fermentation liquid waste disposal and discloses a method for preparing fertilizers with sodium glutamate production waste. The method comprises the following steps of 1) preparing sodium glutamate fermentation liquid; 2) filtering the sodium glutamate fermentation liquid; 3) performing decolorization, concentration and crystallization; 4) performing hydrolysis; 6) preparing material liquid B; 6) preparing the fertilizers. The method for preparing the fertilizers with the sodium glutamate production waste is simple and skillful in process and effectively utilizes the sodium glutamate production waste, thereby greatly reducing the preparation cost of the fertilizers; meanwhile, the fertilizers are durable and superior to competing products on the market.
Description
Technical field
The invention belongs to biological fermentation industry Wastewater treating field, be specifically related to a kind of method utilizing Sodium Glutamate processing waste to prepare fertilizer.
Background technology
Sodium Glutamate chemical name alpha-amino group pentanedioic acid one sodium, be a kind of salt formed by sodium ion and glutamate ion, its Glutamic Acid is a seed amino acid, and sodium is a kind of metallic element.The main component of food flavouring monosodium glutamate conventional in life is exactly Sodium Glutamate.Monosodium glutamate is seasonings conventional in daily life, can increase the delicate flavour of food, is conducive to improving human body to the digestibility of food.In addition, Sodium Glutamate has again very important function, is widely used in food, medicine, industry and the field such as agriculture.
Along with the development of amino acid fermentation technology, China has become the production and consumption big country of monosodium glutamate, but the wastewater flow rate discharged in glutamate production process is large, mother liquor has that CODCr is high, BOD5 is high, thalline content is high, content is high, ammonia-nitrogen content is high and the feature of pH value (1.5-3.2) low " five high low " for sulfate radical (use instead sulfuric acid adjust pH before be chlorion).It is the trade effluent that a kind of difficulty of governance is very large.Owing to effectively can not administer gourmet powder waste water, many Gourmet Powder Factories are put into the row of national major polluting sources unit, and the improvement of gourmet powder waste water has become the great difficult problem of restriction glutamate production enterprise development.The a large amount of thalline contained in waste water, it is a kind of single cell protein, and containing rich in protein, how effectively to utilize thalline is the problem that we need to solve.
The development of China's fertilizer and application history, be main phase from farm manure to use inorganic fertilizer, because farm manure source of pollution are many, traffic capacity is large, operationally wastes time and energy and effect is not obvious especially; And inorganic fertilizer composition is single, utilization ratio is lower, and often causes soil compaction and adjoint soil erosion polluted source, influence ecological environment.At present, the inorganic composite fertilizer etc. of market many employings Nitrogen-and Phosphorus-containing potassium, the fertilizer efficiency of this composite fertilizer is comprehensive, but it is lasting also to there is fertilizer efficiency, the defects such as easy loss; The more important thing is, the price of current composite fertilizer is higher, brings larger burden to peasant, how to reduce fertilizer cost, and improving farmers' income is the agricultural modernization technical issues that need to address.
Summary of the invention
In order to overcome the defect of prior art, the invention provides a kind of method utilizing Sodium Glutamate processing waste to prepare fertilizer, the method technique is ingenious, efficiently utilize Sodium Glutamate processing waste, its fertilizer cost prepared reduces greatly, and fertilizer is lasting, is better than market like product.
For achieving the above object, the present invention is by the following technical solutions:
A kind of method utilizing Sodium Glutamate processing waste to prepare fertilizer, described method comprises the steps: that step 1) prepares Sodium Glutamate fermented liquid, step 2) Sodium Glutamate filtering fermentation liquor, step 3) decolouring, concentrated and crystallization, step 4) is hydrolyzed, step 5) prepares feed liquid B, and step 6) prepares fertilizer.
Particularly, comprise the steps:
Step 1) prepares Sodium Glutamate fermented liquid: in glutami acid fermentation liquor, add liquefied ammonia and sodium hydroxide reacts simultaneously, and the mol ratio of liquefied ammonia and sodium hydroxide is 2:1, obtains Sodium Glutamate fermented liquid; Wherein, the total addition level of liquefied ammonia and sodium hydroxide and the mol ratio of glutami acid fermentation liquor Glutamic Acid are 1:1;
Step 2) Sodium Glutamate filtering fermentation liquor: Sodium Glutamate fermentation liquor micro-filtrate membrane filtration is degerming, collects trapped substance and filtered solution respectively; Then filtered solution is proceeded ultrafiltration membrance filter, collect concentrated solution and penetrating fluid; Above-mentioned trapped substance and concentrated solution are merged into feed liquid A for subsequent use; Wherein, microfiltration membrane is inorganic ceramic film, and molecular weight cut-off is 2000MW, and micro-filtration temperature is 40 DEG C; Ultra-filtration membrane molecular weight cut-off is 300MW, and ultrafiltrate temperature is 40 DEG C;
Step 3) decolouring, concentrated and crystallization: step (2) gained penetrating fluid pumps into bleacher and carries out desolventing technology, the gac of penetrating fluid quality 0.5-1% is added in bleacher, the temperature controlled in bleacher is 45 DEG C, after decolouring 30min, Plate Filtration removes gac, then concentrate, crystallization, last centrifugal acquisition Sodium Glutamate crystal and mother liquor; Described concentrated parameter is: temperature 60 C, and vacuum tightness is-0.1kpa;
Step 4) is hydrolyzed: by step 2) gained feed liquid A dries, pulverizer is ground into Powdered, then reactor is placed in, add the hydrochloric acid of 6-8mol/L, be as the criterion not have raw material, hydrolysis 12-15 hour is stirred at 60 DEG C of temperature, stirring velocity is 100 turns/min, use in potassium hydroxide after reaction terminating and remaining hydrochloric acid, obtain amino acid solution, then the ratio being 3:1 according to the mol ratio of amino acid and metal ion adds metal ion, control temperature is 40 DEG C, time is 30min, pH carries out chelatropic reaction 7.0, finally chelate products is concentrated, drying and pulverizing, obtain amino-acid chelate, described metal ion is formed by cupric ion, calcium ion and the zine ion mixed in molar ratio according to 1:1:1,
Step 5) prepares feed liquid B: add in stirred pot by step 4) gained amino-acid chelate, corn stalk powder, zeolite powder and mother liquor according to the mass ratio of 1:3:3:10,500 revs/min are stirred 10 minutes, then retort is entered, the temperature controlling retort is 100 DEG C, reaction 15-30 minute, then be cooled to room temperature, obtain feed liquid B;
Step 6) prepares fertilizer: according to the mixing of feed liquid B, monoammonium phosphate, urea and water, 1000 turns/min stirs 3-5min, then joins granulation in dual-screw pelletizer, dry, finally adds microbial inoculum, stirs and get final product; Wherein, the part by weight of feed liquid B, monoammonium phosphate, urea, water and microbial inoculum is 30-50:20-35:20-35:10-20:1-2.
In described step 5), the particle diameter of amino-acid chelate, corn stalk powder or zeolite powder all controls at 50-100 order.
Described microbial inoculum is prepared as follows and obtains: subtilis (Bacillus subtilis) CGMCC No:0954 and azotobacter chroococcum (Azotobacter chroococcum) ATCC4412 is mixed to get mixed bacteria liquid according to the volume ratio of 1:1, then mixed with the mass ratio of diatomite according to 1:2 by mixed bacteria liquid, last 25 DEG C are drying to obtain; The original concentration of described subtilis or described azotobacter chroococcum is 1 × 10
8individual/ml.
Note, in above-mentioned steps, the training method of bacterial classification is not innovative point of the present invention, does not describe in detail herein, and those skilled in the art can to it is documented or the general knowledge of this area selects conventional substratum and enlarged culturing method by root, make viable count reach 10
8individual/ml; Above-mentioned bacterial strains can be bought from commercial sources such as CGMCC and ATCC and obtain.
The beneficial effect that the present invention obtains mainly comprises:
A large amount of fermentation thalli and albumen is contained in the filter retentate of Sodium Glutamate fermented liquid and concentrated solution, the present invention is while production Sodium Glutamate, make use of discarded tropina and mother liquor, eliminate mother liquid disposal process, reduce production cost, achieve and turn waste into wealth, increased substantially the utilization ratio of resource; The present invention is prepared into chelating amino acid by utilizing tropina, avoids using expensive protein raw materials, and substantially increases fertilizer efficiency; Fertilizer prepared by the present invention not only employs fermentation waste, also added wastes of crops, reduces raw materials cost, and fertilizer efficiency is better, is applicable to multiple kinds of crops; The present invention adds potassium hydroxide as neutralizing agent, and its sylvite produced can be used as composite fertilizer's potassium nutrient; The present invention adopts microbial technique, microbial preparation and conventional fertilizers is organically combined, substantially increases the conservation rate of fertilizer, improve fertilizer efficiency.
Embodiment
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the application's specific embodiment, carry out clearly, intactly describing to the present invention, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1
Utilize Sodium Glutamate processing waste to prepare a method for fertilizer, it comprises the steps:
Step 1) prepares Sodium Glutamate fermented liquid: in glutami acid fermentation liquor, add liquefied ammonia and sodium hydroxide reacts simultaneously, and the mol ratio of liquefied ammonia and sodium hydroxide is 2:1, obtains Sodium Glutamate fermented liquid; Wherein, the total addition level of liquefied ammonia+sodium hydroxide and the mol ratio of glutami acid fermentation liquor Glutamic Acid are 1:1;
Step 2) Sodium Glutamate filtering fermentation liquor: Sodium Glutamate fermentation liquor micro-filtrate membrane filtration is degerming, collects trapped substance and filtered solution respectively; Then filtered solution is proceeded ultrafiltration membrance filter, collect concentrated solution and penetrating fluid; Above-mentioned trapped substance and concentrated solution are merged into feed liquid A for subsequent use; Wherein, microfiltration membrane is inorganic ceramic film, and molecular weight cut-off is 2000MW, and micro-filtration temperature is 40 DEG C; Ultra-filtration membrane molecular weight cut-off is 300MW, and ultrafiltrate temperature is 40 DEG C;
Step 3) decolouring, concentrated and crystallization: step 2) gained penetrating fluid pumps into bleacher and carries out desolventing technology, the gac of penetrating fluid quality 0.5% is added in bleacher, the temperature controlled in bleacher is 45 DEG C, decolour after 30 points, Plate Filtration removes gac, then concentrate, crystallization, last centrifugal acquisition Sodium Glutamate crystal and mother liquor; Described concentrated parameter is: temperature 60 C, and vacuum tightness is-0.1kpa;
Step 4) is hydrolyzed: dried by feed liquid A, pulverizer is ground into Powdered, then reactor is placed in, add the hydrochloric acid of 8mol/L, be as the criterion not have raw material, hydrolysis is stirred 12 hours at 60 DEG C of temperature, stirring velocity is 100 turns/min, with making solution be neutral in potassium hydroxide with remaining hydrochloric acid after reaction terminating, obtain amino acid solution, then the ratio being 3:1 according to the mol ratio of amino acid and metal ion adds metal ion, control temperature is 40 DEG C, time is 30min, pH carries out chelatropic reaction 7.0, finally chelate products is concentrated, drying and pulverizing, obtain amino-acid chelate, described metal ion is by cupric ion (Cu
+ 2), calcium ion (Ca
+ 2) and zine ion (Zn
+ 2) form according to the mixed in molar ratio of 1:1:1,
Step 5) prepares feed liquid B: add in stirred pot by amino-acid chelate, corn stalk powder, zeolite powder and mother liquor according to the mass ratio of 1:3:3:10,500 revs/min are stirred 10 minutes, then retort is entered, the temperature controlling retort is 100 DEG C, react 15 minutes, then be cooled to room temperature, obtain feed liquid B; Wherein, the particle diameter of amino-acid chelate, corn stalk powder or zeolite powder all controls at 50 orders;
Step 6) prepares fertilizer: according to the mixing of feed liquid B, monoammonium phosphate, urea and water, 1000 turns/min stirs 3-5min, then joins granulation in dual-screw pelletizer, dry, finally adds microbial inoculum, stirs and get final product; Wherein, the part by weight of feed liquid B, monoammonium phosphate, urea, water and microbial inoculum is 30:20:20:10:1;
Described microbial inoculum is prepared as follows and obtains: openly used by subtilis (Bacillus subtilis) CGMCC No:0954(CN1554744) and azotobacter chroococcum (Azotobacter chroococcum) ATCC4412(Appl Biochem Biotechnol.1991 Sep; 30 (3): 273-84.) be mixed to get mixed bacteria liquid according to the volume ratio of 1:1, mixed by mixed bacteria liquid with the mass ratio of diatomite according to 1:2,25 DEG C are drying to obtain; The original concentration of above-mentioned two kinds of bacterium is 1 × 10
8individual/ml.
Embodiment 2
Utilize Sodium Glutamate processing waste to prepare a method for fertilizer, it comprises the steps:
Step 1) prepares Sodium Glutamate fermented liquid: in glutami acid fermentation liquor, add liquefied ammonia and sodium hydroxide reacts simultaneously, and the mol ratio of liquefied ammonia and sodium hydroxide is 2:1, obtains Sodium Glutamate fermented liquid; Wherein, the total addition level of liquefied ammonia+sodium hydroxide and the mol ratio of glutami acid fermentation liquor Glutamic Acid are 1:1;
Step 2) Sodium Glutamate filtering fermentation liquor: Sodium Glutamate fermentation liquor micro-filtrate membrane filtration is degerming, collects trapped substance and filtered solution respectively; Then filtered solution is proceeded ultrafiltration membrance filter, collect concentrated solution and penetrating fluid; Above-mentioned trapped substance and concentrated solution are merged into feed liquid A for subsequent use; Wherein, microfiltration membrane is inorganic ceramic film, and molecular weight cut-off is 2000MW, and micro-filtration temperature is 40 DEG C; Ultra-filtration membrane molecular weight cut-off is 300MW, and ultrafiltrate temperature is 40 DEG C;
Step 3) decolouring, concentrated and crystallization: step (2) gained penetrating fluid pumps into bleacher and carries out desolventing technology, the gac of penetrating fluid quality 1% is added in bleacher, the temperature controlled in bleacher is 45 DEG C, after decolouring 30min, Plate Filtration removes gac, then concentrate, crystallization, last centrifugal acquisition Sodium Glutamate crystal and mother liquor; Described concentrated parameter is: temperature 60 C, and vacuum tightness is-0.1kpa;
Step 4) is hydrolyzed: dried by feed liquid A, pulverizer is ground into Powdered, then reactor is placed in, add the hydrochloric acid of 6mol/L, be as the criterion not have raw material, hydrolysis is stirred 15 hours at 60 DEG C of temperature, stirring velocity is 100 turns/min, use in potassium hydroxide after reaction terminating and remaining hydrochloric acid, obtain amino acid solution, then the ratio being 3:1 according to the mol ratio of amino acid and metal ion adds metal ion, control temperature is 40 DEG C, time is 30min, pH carries out chelatropic reaction 7.0, finally chelate products is concentrated, drying and pulverizing, obtain amino-acid chelate, described metal ion is by cupric ion (Cu
+ 2), calcium ion (Ca
+ 2) and zine ion (Zn
+ 2) form according to the mixed in molar ratio of 1:1:1,
Step 5) prepares feed liquid B: add in stirred pot by amino-acid chelate, corn stalk powder, zeolite powder and mother liquor according to the mass ratio of 1:3:3:10,500 revs/min are stirred 10 minutes, then retort is entered, the temperature controlling retort is 100 DEG C, react 30 minutes, then be cooled to room temperature, obtain feed liquid B; Wherein, the particle diameter of amino-acid chelate, corn stalk powder or zeolite powder all controls at 100 orders;
Step 6) prepares fertilizer: according to the mixing of feed liquid B, monoammonium phosphate, urea and water, 1000 turns/min stirs 3-5min, then joins granulation in dual-screw pelletizer, dry, finally adds microbial inoculum, stirs and get final product; Wherein, the part by weight of feed liquid B, monoammonium phosphate, urea, water and microbial inoculum is 50:35:35:20:2;
Described microbial inoculum is prepared as follows and obtains: subtilis and azotobacter chroococcum are mixed to get mixed bacteria liquid according to the volume ratio of 1:1, is mixed by mixed bacteria liquid with the mass ratio of diatomite according to 1:2, and 25 DEG C are drying to obtain; The original concentration of above-mentioned two kinds of bacterium is 1 × 10
8individual/ml.
Embodiment 3
The manure trial of fertilizer of the present invention
One, rice cultivation manure trial:
Arrange two process experimental plots, implantation time is 2013, and cultivated area is one mu, is control group and experimental group.Control group: composite fertilizer (N23-P7-K6); Experimental group: fertilizer prepared by embodiment 1; The usage quantity often organizing experimental plot fertilizer is 50kg, and planting conditions is identical, gathers in the crops paddy rice simultaneously, measures paddy rice per mu yield and stimulation ratio; Detect paddy rice grain number per spike, thousand seed weight and unfilled gtains number simultaneously.Test-results is in table 1:
Table 1
| Group | Unfilled gtains number (grain/fringe) | Grain number per spike (grain/fringe) | Thousand seed weight (g) | Per mu yield (kg) |
| Control group | 5.3 | 64.7 | 27.9 | 461.2 |
| Experimental group | 3.2 | 67.5 | 30.6 | 487.3 |
Two, the experiment of Ipomoea batatas fertilizer efficiency is planted:
Arrange two process experimental plots, area is one mu, is control group and experimental group.Control group: Nitrogen, Phosphorus and Potassium (N15-P15-K15); Experimental group: fertilizer prepared by embodiment 1; The equal mu fertilising in each experimental plot 60Kg, on May 12nd, 2013 plants, and October 17 dug to obtain gather in then.Concrete test-results is in table 2:
Table 2
| ? | Per mu yield (Kg) | Per mu yield increment (Kg) | Mu fertilising drops into (unit) |
| Control group | 2418 | / | 156 |
| Experimental group | 2689 | 271 | 132 |
Remarks: control group fertilizer calculates according to price 2.6 yuan/kg, experimental group calculates according to 2.2 yuan/kg.
Conclusion (of pressure testing): found by the test of plantation multiple kinds of crops, fertilizer prepared by the present invention commonly uses composite fertilizer's obvious effect of increasing production than market, and fertilizer efficiency is lasting, with low cost, is conducive to the income improving plantation food crop.
Although above done detailed explanation with general explanation and embodiment to this case, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, amendment done without departing from theon the basis of the spirit of the present invention or improvement, all belong to the scope of protection of present invention.
Claims (4)
1. the method utilizing Sodium Glutamate processing waste to prepare fertilizer, it is characterized in that, described method comprises the steps: that step 1) prepares Sodium Glutamate fermented liquid, step 2) Sodium Glutamate filtering fermentation liquor, step 3) decolouring, concentrated and crystallization, step 4) is hydrolyzed, and step 5) prepares feed liquid B, and step 6) prepares fertilizer.
2. the method for claim 1, is characterized in that, described method comprises the steps:
Step 1) prepares Sodium Glutamate fermented liquid: in glutami acid fermentation liquor, add liquefied ammonia and sodium hydroxide reacts simultaneously, and the mol ratio of liquefied ammonia and sodium hydroxide is 2:1, obtains Sodium Glutamate fermented liquid; Wherein, total mole of addition of liquefied ammonia and sodium hydroxide and the mol ratio of glutami acid fermentation liquor Glutamic Acid are 1:1;
Step 2) Sodium Glutamate filtering fermentation liquor: Sodium Glutamate fermentation liquor micro-filtrate membrane filtration is degerming, collects trapped substance and filtered solution respectively; Then filtered solution is proceeded ultrafiltration membrance filter, collect concentrated solution and penetrating fluid; Above-mentioned trapped substance and concentrated solution are merged into feed liquid A for subsequent use; Wherein, microfiltration membrane is inorganic ceramic film, and molecular weight cut-off is 2000MW, and micro-filtration temperature is 40 DEG C; Ultra-filtration membrane molecular weight cut-off is 300MW, and ultrafiltrate temperature is 40 DEG C;
Step 3) decolouring, concentrated and crystallization: step 2) gained penetrating fluid pumps into bleacher and carries out desolventing technology, the gac of penetrating fluid quality 0.5-1% is added in bleacher, the temperature controlled in bleacher is 45 DEG C, after decolouring 30min, filter and remove gac, then concentrate, crystallization, last centrifugal acquisition Sodium Glutamate crystal and mother liquor; Described concentrated parameter is: temperature 60 C, and vacuum tightness is-0.1kpa;
Step 4) is hydrolyzed: by step 2) gained feed liquid A dries, pulverizer is ground into Powdered, then reactor is placed in, add the hydrochloric acid of 6-8mol/L, be as the criterion not have raw material, hydrolysis 12-15 hour is stirred at 60 DEG C of temperature, stirring velocity is 100 turns/min, use in potassium hydroxide after reaction terminating and remaining hydrochloric acid, obtain amino acid solution, then the ratio being 3:1 according to the mol ratio of amino acid and metal ion adds metal ion, control temperature is 40 DEG C, time is 30min, pH carries out chelatropic reaction 7.0, finally chelate products is concentrated, drying and pulverizing, obtain amino-acid chelate, described metal ion is formed by cupric ion, calcium ion and the zine ion mixed in molar ratio according to 1:1:1,
Step 5) prepares feed liquid B: add in stirred pot by step 4) gained amino-acid chelate, corn stalk powder, zeolite powder and mother liquor according to the mass ratio of 1:3:3:10,500 revs/min are stirred 10 minutes, then retort is entered, the temperature controlling retort is 100 DEG C, reaction 15-30 minute, then be cooled to room temperature, obtain feed liquid B;
Step 6) prepares fertilizer: according to the mixing of feed liquid B, monoammonium phosphate, urea and water, 1000 turns/min stirs 3-5min, then joins granulation in dual-screw pelletizer, dry, finally adds microbial inoculum, stirs and get final product; Wherein, the part by weight of feed liquid B, monoammonium phosphate, urea, water and microbial inoculum is 30-50:20-35:20-35:10-20:1-2.
3. method as claimed in claim 2, is characterized in that,
In described step 5), the particle diameter of amino-acid chelate, corn stalk powder or zeolite powder all controls at 50-100 order.
4. method as claimed in claim 2, it is characterized in that, described microbial inoculum is prepared as follows and obtains: subtilis (Bacillus subtilis) CGMCC No:0954 and azotobacter chroococcum (Azotobacter chroococcum) ATCC4412 is mixed to get mixed bacteria liquid according to the volume ratio of 1:1, then mixed with the mass ratio of diatomite according to 1:2 by mixed bacteria liquid, last 25 DEG C are drying to obtain; The original concentration of described subtilis or described azotobacter chroococcum is 1 × 10
8individual/ml.
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Cited By (6)
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| CN105349591A (en) * | 2015-12-18 | 2016-02-24 | 内蒙古阜丰生物科技有限公司 | Natural food additive sodium glutamate and preparation technology thereof |
| CN106045701A (en) * | 2016-06-07 | 2016-10-26 | 内蒙古阜丰生物科技有限公司 | Compound fertilizer prepared from waste through fermentation with threonine |
| CN106045626A (en) * | 2016-06-07 | 2016-10-26 | 呼伦贝尔东北阜丰生物科技有限公司 | Method for producing biological bacterial fertilizer from amino acid fermentation liquid waste and corn stalks |
| CN107337611A (en) * | 2017-06-07 | 2017-11-10 | 成都连接流体分离科技有限公司 | A kind of method that glutami acid fermentation liquor prepares sodium glutamate |
| CN110981003A (en) * | 2019-12-03 | 2020-04-10 | 呼伦贝尔东北阜丰生物科技有限公司 | Secondary value-added utilization method of amino acid fermentation wastewater |
| CN113999059A (en) * | 2021-11-15 | 2022-02-01 | 秦皇岛华恒生物工程有限公司 | Amino acid slow release fertilizer and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349591A (en) * | 2015-12-18 | 2016-02-24 | 内蒙古阜丰生物科技有限公司 | Natural food additive sodium glutamate and preparation technology thereof |
| CN105349591B (en) * | 2015-12-18 | 2019-08-30 | 内蒙古阜丰生物科技有限公司 | A kind of natural additive for foodstuff sodium glutamate and its preparation process |
| CN106045701A (en) * | 2016-06-07 | 2016-10-26 | 内蒙古阜丰生物科技有限公司 | Compound fertilizer prepared from waste through fermentation with threonine |
| CN106045626A (en) * | 2016-06-07 | 2016-10-26 | 呼伦贝尔东北阜丰生物科技有限公司 | Method for producing biological bacterial fertilizer from amino acid fermentation liquid waste and corn stalks |
| CN106045701B (en) * | 2016-06-07 | 2019-07-23 | 内蒙古阜丰生物科技有限公司 | The compound fertilizer prepared using Threonine Fermentation waste |
| CN107337611A (en) * | 2017-06-07 | 2017-11-10 | 成都连接流体分离科技有限公司 | A kind of method that glutami acid fermentation liquor prepares sodium glutamate |
| CN110981003A (en) * | 2019-12-03 | 2020-04-10 | 呼伦贝尔东北阜丰生物科技有限公司 | Secondary value-added utilization method of amino acid fermentation wastewater |
| CN110981003B (en) * | 2019-12-03 | 2022-04-05 | 呼伦贝尔东北阜丰生物科技有限公司 | Secondary value-added utilization method of amino acid fermentation wastewater |
| CN113999059A (en) * | 2021-11-15 | 2022-02-01 | 秦皇岛华恒生物工程有限公司 | Amino acid slow release fertilizer and preparation method and application thereof |
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