CN102070360A - Method for producing fertilizer by using glutamic acid fermentation waste liquid - Google Patents
Method for producing fertilizer by using glutamic acid fermentation waste liquid Download PDFInfo
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- CN102070360A CN102070360A CN2009102308209A CN200910230820A CN102070360A CN 102070360 A CN102070360 A CN 102070360A CN 2009102308209 A CN2009102308209 A CN 2009102308209A CN 200910230820 A CN200910230820 A CN 200910230820A CN 102070360 A CN102070360 A CN 102070360A
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- waste liquid
- glutamic acid
- fertilizer
- fertiliser granulates
- degree beaume
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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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Abstract
The invention discloses a method for producing fertilizer by using glutamic acid fermentation waste liquid, which comprises the following steps of: (1) concentrating glutamic acid fermentation waste liquid with the baume degree of 6-7 to the baume degree of 25-27; (2) concentrating the glutamic acid fermentation waste liquid with the baume degree of 25-27 to the baume degree of 45-47; reducing the water content of the waste liquid with the baume degree of 45-47 to be below 3% by using a melting tank in a vacuum state; (4) granulating the melted material into fertilizer granules by using a spiral granulator; (5) quickly cooling the prepared fertilizer granules with water and taking the fertilizer granules out of the spiral granulator; and (6) quickly dewatering the fertilizer granules by using a dewaterer, coating the dewatered fertilizer granules with a coating agent, drying with a fluidized bed, recycling dust, delivering granular fertilizer to a cabin, packing by using an automatic packing machine and finally warehousing.
Description
Technical field
The invention belongs to the recovery and utilization technology field of glutamic acid-fermented waste liquid, specifically relate to a kind of method of utilizing glutamic acid-fermented waste liquid to produce fertilizer.
Background technology
China is amino acid big producing country, and according to statistics, China's L-glutamic acid annual production is up to more than 150 ten thousand tons.Usually, fermentation method is mainly adopted in the production of L-glutamic acid, contains the L-glutamic acid of 10-13% in the maturing fermentation liquid that fermentation obtains approximately, and behind the extraction L-glutamic acid, remaining waste liquid is referred to as glutamic acid-fermented waste liquid from this maturing fermentation liquid.Wherein, owing to from sophisticated amino acid zymotic fluid, extract the extraction process difference of L-glutamic acid, the volume of the glutamic acid-fermented waste liquid of glutami acid fermentation liquor discharging per ton and liquid waste concentration are slightly different, but main component is basic identical, main component comprises somatic cells, amino acid, residual sugar, ammonium root and trace element etc., the gross weight of each composition (weight is called for short w) accounts for the 5-20% (w/v) of glutamic acid-fermented waste liquid volume; And the pH value of glutamic acid-fermented waste liquid is about 2.8-3.4; In addition, in glutamic acid-fermented waste liquid, contain a large amount of organism (being COD), ammonia nitrogen (is NH
3-N) and sulfate ion (be SO
4 2-).In addition, above-mentioned glutamic acid-fermented waste liquid has the characteristics of " three high low more than ", and " three height " is meant: COD content height, NH
3-N content height and SO
4 2-The content height, concrete, in above-mentioned glutamic acid-fermented waste liquid, the concentration of COD is about 40000-80000mg/L, NH
3-N concentration is about 1200mg/L, SO
4 2-Concentration be about 22000mg/L; " one is low " is meant that the pH value is low; " more than one " is meant that wastewater flow rate is many.
For above-mentioned glutamic acid-fermented waste liquid,, also cause the wasting of resources simultaneously if not treated direct discharging then can cause great pollution to environment.In addition, if handle, then have following problem: (1) is owing to SO in the glutamic acid-fermented waste liquid
4 2-Content is very high, can not adopt anaerobic treatment; (2) if adopt aerobic treatment, then need a large amount of clear water that the organism of excessive concentration is diluted, still, nonetheless, NH
3-N index does not reach environmental requirement yet; (3) if adopt burning disposal, then cost is too high; (4) if adopt the liquid fertilizer method to handle, then can the factor amount big, seasonal strong, difficulty such as accumulating is difficult and economic benefit is low is difficult to carry out.Therefore, utilize glutamic acid-fermented waste liquid production composite fertilizer to eliminate contaminated wastewater, reduce production costs and realize that waste resource transforms and an important step.
In the prior art, L-glutamic acid manufacturers more both domestic and external adopt the method for spray granulation production composite fertilizer mostly, and glutamic acid-fermented waste liquid is handled.Concrete, elder generation through the multiple-effect evaporation concentration, obtains concentrated solution with glutamic acid-fermented waste liquid, and in this concentrated solution, the weight of solid substance accounts for 45% (w/w) of this concentrated solution gross weight; Again this concentrated solution is sprayed in the prilling tower, adopt temperature to be about 550 ℃ high-temperature flue gas, carry out the sintering granulation and handle; Simultaneously, carry out drying treatment, to remove the moisture of residue more than 50%.
But, in above-mentioned production process, can produce the unclean tail gas of a large amount of difficult diffusions, when these tail gas enter atmosphere, can cause serious secondary pollution to atmosphere.Under the pressure of current environmental requirement, this pollutes the development that seriously restricts enterprise; Secondly, because high-temperature technology and apparatus factor can cause the loss of fertilizer nutrient, even make the excessive charing of fertilizer, applying the field several years can't dissolve, and does not only reach the effect of fertilising, and causes soil pollution.Therefore, above-mentioned spray granulation seriously restricts the development of glutamic acid fermentation enterprise, and some enterprise is forced to limited production or stopping production because of the secondary pollution of tail gas.
Chinese patent literature (publication number CN 101182261A, application number 200710114385.4) a kind of composite fertilizer with the glutamic acid-fermented waste liquid preparation is disclosed, it is prepared by following raw material and weight proportion: 15-25 ° of B é concentrates glutamic acid-fermented waste liquid 25, flyash 5, phosphorous acid 5, Repone K 5, clay 10, ammonium sulfate 50; Earlier with multiple-effect evaporator glutamic acid-fermented waste liquid is carried out evaporation concentration, evaporation concentration is to the 15-25 degree Beaume; Adding flyash, phosphorous acid, Repone K, clay and ammonium sulfate in the glutamic acid-fermented waste liquid after concentrating again mixes; Then compound is caused particulate state fertilizer in the cylinder tablets press; At last particulate state fertilizer is delivered to drying in the dryer, composite fertilizer gets product.Chinese patent literature (publication number CN 1900022A, application number 200610044327.4) disclosing a kind of method of utilizing glutami acid fermentation liquor to produce bio-fertilizer, is that glutami acid fermentation liquor is concentrated, extracts ammonium sulfate, spice mixings, cylinder granulation, dries and be the technology of finished product fertilizer.All there is the defective of contaminate environment in these technologies.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of method of utilizing glutamic acid-fermented waste liquid to produce fertilizer.
Technical scheme of the present invention is as follows:
A kind of method of utilizing glutamic acid-fermented waste liquid to produce fertilizer, step is as follows:
(1) glutamic acid-fermented waste liquid with the 6-7 degree Beaume is concentrated to the 25-27 degree Beaume; (2) 25-27 degree Beaume material is concentrated to the 45-47 degree Beaume; (3) again 45-47 degree Beaume material is reduced to moisture below 3% under vacuum state with the fusion jar; (4) will melt good material and cause fertiliser granulates with the spiral tablets press; (5) the fertiliser granulates water fast cooling of being made is also taken fertiliser granulates out of tablets press; (6) fertiliser granulates advances the water extracter fast dewatering again;
Fertiliser granulates after dehydration Drug coating dressing is used fluidised bed drying, and dust reclaims, and granulated fertilizer puts in storage, automatic packing machine packing warehouse-in.
The present invention can give full play to the resource value of glutami acid fermentation liquor, and technological operation is simple, and the required equipment investment is little, has huge economic benefit.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with embodiment, but protection domain is not limited thereto.
Embodiment 1: a kind of method of utilizing glutamic acid-fermented waste liquid to produce fertilizer, and step is as follows:
(1) glutamic acid-fermented waste liquid with 6 degree Beaume is concentrated to 25 degree Beaume; (2) 25 degree Beaume materials are concentrated to 45 degree Beaume; (3) again 45 degree Beaume materials are reduced to the moisture of feed liquid below 3% under vacuum state with the fusion jar; (4) will melt good material and cause fertiliser granulates with the spiral tablets press; (5) the fertiliser granulates water fast cooling of being made is also taken fertiliser granulates out of tablets press; (6) fertiliser granulates advances the water extracter fast dewatering again; Fertiliser granulates after dehydration Drug coating dressing reclaims with fluidised bed drying, dust, and granulated fertilizer puts in storage, automatic packing machine packing warehouse-in.
Embodiment 2: a kind of method of utilizing glutamic acid-fermented waste liquid to produce fertilizer, and step is as follows:
(1) glutamic acid-fermented waste liquid with 7 degree Beaume is concentrated to 27 degree Beaume; (2) 27 degree Beaume materials are concentrated to 47 degree Beaume; (3) again 47 degree Beaume materials are reduced to the moisture of feed liquid below 3% under vacuum state with the fusion jar; (4) will melt good material and cause fertiliser granulates with the spiral tablets press; (5) the fertiliser granulates water fast cooling of being made is also taken fertiliser granulates out of tablets press; (6) fertiliser granulates advances the water extracter fast dewatering again; Fertiliser granulates after dehydration Drug coating dressing reclaims with fluidised bed drying, dust, and granulated fertilizer puts in storage, automatic packing machine packing warehouse-in.
Claims (1)
1. method of utilizing glutamic acid-fermented waste liquid to produce fertilizer is characterized in that:
(1) glutamic acid-fermented waste liquid with the 6-7 degree Beaume is concentrated to the 25-27 degree Beaume;
(2) 25-27 degree Beaume material is concentrated to the 45-47 degree Beaume;
(3) again 45-47 degree Beaume material is reduced to moisture below 3% under vacuum state with the fusion jar;
(4) will melt good material and cause fertiliser granulates with the spiral tablets press;
(5) the fertiliser granulates water fast cooling of being made is also taken fertiliser granulates out of tablets press;
(6) fertiliser granulates advances the water extracter fast dewatering again;
Fertiliser granulates after dehydration Drug coating dressing is used fluidised bed drying, and dust reclaims, and granulated fertilizer puts in storage, automatic packing machine packing warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102308209A CN102070360A (en) | 2009-11-25 | 2009-11-25 | Method for producing fertilizer by using glutamic acid fermentation waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102308209A CN102070360A (en) | 2009-11-25 | 2009-11-25 | Method for producing fertilizer by using glutamic acid fermentation waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102070360A true CN102070360A (en) | 2011-05-25 |
Family
ID=44029144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102308209A Pending CN102070360A (en) | 2009-11-25 | 2009-11-25 | Method for producing fertilizer by using glutamic acid fermentation waste liquid |
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| Country | Link |
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| CN (1) | CN102070360A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942426A (en) * | 2012-11-16 | 2013-02-27 | 蒋斌 | Vacuum dehydration device for granulating machine of biotic organic fertilizer |
| CN107573131A (en) * | 2016-07-04 | 2018-01-12 | 深圳市芭田生态工程股份有限公司 | The method and nutritious fertilizer of nutritious fertilizer are prepared using Threonine Fermentation waste liquid |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900022A (en) * | 2006-05-29 | 2007-01-24 | 山东阜丰发酵有限公司 | Process for producing biological fermented (organic-inorganic compound mixed) fertilizer from glutaminic acid fermenting waste liquid |
| CN101033152A (en) * | 2007-02-12 | 2007-09-12 | 河南莲花味精股份有限公司 | Amino acid containing water soluble fertilizer produced by glutamic acid mother liquor |
| CN101182261A (en) * | 2007-11-15 | 2008-05-21 | 山东阜丰生物科技开发有限公司 | Compound fertilizer prepared by glutamic acid fermentation wastewater |
| 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 |
-
2009
- 2009-11-25 CN CN2009102308209A patent/CN102070360A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900022A (en) * | 2006-05-29 | 2007-01-24 | 山东阜丰发酵有限公司 | Process for producing biological fermented (organic-inorganic compound mixed) fertilizer from glutaminic acid fermenting waste liquid |
| CN101033152A (en) * | 2007-02-12 | 2007-09-12 | 河南莲花味精股份有限公司 | Amino acid containing water soluble fertilizer produced by glutamic acid mother liquor |
| 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 |
| CN101182261A (en) * | 2007-11-15 | 2008-05-21 | 山东阜丰生物科技开发有限公司 | Compound fertilizer prepared by glutamic acid fermentation wastewater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942426A (en) * | 2012-11-16 | 2013-02-27 | 蒋斌 | Vacuum dehydration device for granulating machine of biotic organic fertilizer |
| CN107573131A (en) * | 2016-07-04 | 2018-01-12 | 深圳市芭田生态工程股份有限公司 | The method and nutritious fertilizer of nutritious fertilizer are prepared using Threonine Fermentation waste liquid |
| 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: 20110525 |