CN107857620A - A kind of method and fertilizer that fertilizer is prepared by allantoin production waste water - Google Patents
A kind of method and fertilizer that fertilizer is prepared by allantoin production waste water Download PDFInfo
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- CN107857620A CN107857620A CN201711238280.XA CN201711238280A CN107857620A CN 107857620 A CN107857620 A CN 107857620A CN 201711238280 A CN201711238280 A CN 201711238280A CN 107857620 A CN107857620 A CN 107857620A
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- fertilizer
- waste water
- production waste
- concentrate
- prepared
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- POJWUDADGALRAB-UHFFFAOYSA-N allantoin Chemical compound NC(=O)NC1NC(=O)NC1=O POJWUDADGALRAB-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000003337 fertilizer Substances 0.000 title claims abstract description 40
- 229960000458 allantoin Drugs 0.000 title claims abstract description 31
- POJWUDADGALRAB-PVQJCKRUSA-N Allantoin Natural products NC(=O)N[C@@H]1NC(=O)NC1=O POJWUDADGALRAB-PVQJCKRUSA-N 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000002351 wastewater Substances 0.000 title claims abstract description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 28
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 28
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 26
- 239000012141 concentrate Substances 0.000 claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 16
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 14
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 14
- 239000001103 potassium chloride Substances 0.000 claims abstract description 13
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 13
- 210000003608 fece Anatomy 0.000 claims abstract description 11
- 244000144977 poultry Species 0.000 claims abstract description 10
- 230000004044 response Effects 0.000 claims abstract description 9
- 238000010792 warming Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000035484 reaction time Effects 0.000 claims description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 7
- 229910017604 nitric acid Inorganic materials 0.000 description 7
- 229940015043 glyoxal Drugs 0.000 description 4
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical group OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 241001139382 Allantion Species 0.000 description 1
- 206010002198 Anaphylactic reaction Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000005787 Cistanche Species 0.000 description 1
- 235000002722 Dioscorea batatas Nutrition 0.000 description 1
- 235000006536 Dioscorea esculenta Nutrition 0.000 description 1
- 240000001811 Dioscorea oppositifolia Species 0.000 description 1
- 235000003416 Dioscorea oppositifolia Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 230000036783 anaphylactic response Effects 0.000 description 1
- 208000003455 anaphylaxis Diseases 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002919 epithelial cell Anatomy 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of method and fertilizer that fertilizer is prepared by allantoin production waste water, this method includes：1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；2）Concentrate, black mature soil, phosphoric acid are subjected to haptoreaction, potassium chloride is then added into system and ammonia carries out secondary response；3）Reacted mixed liquor is mixed with poultry dung, heaped, is dried so that the fertilizer is made；Wherein, two-step enrichment is：System is first cooled to 55 60 DEG C from 70 80 DEG C of speed with 0.2 0.5 DEG C/min and is incubated 2 3h, then 65 70 DEG C is warming up to 1 1.5 DEG C/min speed and is incubated 0.5 1h.This method effectively can effectively fix in the N sources in waste water, and then avoid the pollution of environment.
Description
Technical field
The present invention relates to method of wastewater treatment, in particular it relates to a kind of method for preparing fertilizer by allantoin production waste water
And fertilizer.
Background technology
Allantoin, English name Allantion, chemical name Allantio, it is a kind of weight
The fine chemical product wanted, purposes are extremely wide.Allantoin, which has, promotes skin epithelial cell growth, wound healing, analgesic, soft
Change the physiological function such as keratoprotein, and it is nontoxic, non-stimulated, without anaphylaxis, have lucifuge, sterilization and anticorrosion, antioxidation, can make
Skin keeps moisture content, moistens and soft, thus is widely used in medicine and Cosmetic Manufacture.In addition, allantoin also has thorn
Swash the function of biological growth, plant growth regulator can be used as in agricultural production, there is solid fruit, accelerate the ripening, increase production and other effects.
Natural allantoin is present in excreta and some plants of some animals, can be carried using certain technique
Take, for example, Chinese patent CN1958575A and CN1861581A are reported from Chinese yam and are extracted allantoin in saline cistanche respectively,
But because content it is low and involved by processing step complexity the problems such as, almost without practical value for the preparation of allantoin.Therefore,
Allantoin is prepared using chemical synthesis process both at home and abroad at present.
Existing industrialized production allantoin method, mainly using glyoxal nitric acid oxidation method.Glyoxal method is in two steps
Carry out, it is glyoxalic acid that the first step, which relate to glyoxal through nitric acid oxidation, and second step is under the nitric acid effect of carbon monoxide-olefin polymeric
Glyoxalic acid and urea condensation generation allantoin, yield typically about 40%.As can be seen here, glyoxal nitric acid oxidation method production allantoin
During, substantial amounts of nitric acid is contained in its caused waste water, on the one hand the discharge of nitric acid can cause greatly to pollute to environment,
The loss of N resources also form the waste of resource simultaneously.
The content of the invention
It is an object of the invention to provide a kind of method and fertilizer that fertilizer is prepared by allantoin production waste water, this method energy
It is enough effectively effectively to fix in the N sources in waste water, and then avoid the pollution of environment.
To achieve these goals, the invention provides a kind of method for preparing fertilizer by allantoin production waste water, including：
1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；
2）Concentrate, black mature soil, phosphoric acid are subjected to haptoreaction, potassium chloride is then added into system and ammonia carries out secondary counter
Should；
3）Reacted mixed liquor is mixed with poultry dung, heaped, is dried so that the fertilizer is made；
Wherein, two-step enrichment is：System is first cooled to 55-60 DEG C from the 70-80 DEG C of speed with 0.2-0.5 DEG C/min and is incubated
2-3h, then it is warming up to 65-70 DEG C with 1-1.5 DEG C/min speed and is incubated 0.5-1h.
Preferably, in step 2）In, concentrate, black mature soil, phosphoric acid, the weight ratio of potassium chloride and ammonia are 10：5-8：1-
3：12-15：2-4：6-9.
Preferably, in step 2）In, haptoreaction meets following condition：Reaction temperature is 35-40 DEG C, reaction time 6-
10h。
Preferably, in step 2）In, secondary response meets following condition：Reaction temperature is 65-70 DEG C, reaction time 5-
8h。
Preferably, in step 2）In, drying meets following condition：Drying temperature is 110-120 DEG C, drying time 12-
24h。
Preferably, the moisture content of fertilizer is less than 0.5 weight % after drying.
Preferably, the weight of mixed liquor and poultry dung ratio is 1：0.4-0.8.
Preferably, heap and meet following condition：It is 25-35 DEG C to heap temperature, and it is 15-20 days to heap the time.
Present invention also offers a kind of fertilizer prepared by allantoin production waste water, should prepare fertilizer by allantoin production waste water
Material is prepared by above-mentioned method.
In above-mentioned technical proposal, the present invention removes composition volatile in waste water by two-step enrichment first（Such as hydrochloric acid）,
Then lead to peralkaline black mature soil and concentrate and reacted and solidify nitric acid on black mature soil, while add phosphoric acid as phosphorus
Source, then add potassium chloride and ammonia further adds potassium resource and nitrogen source；Finally by reacted mixed liquor and poultry dung
Make compost with compound, the obtained final fertilizer enable uses as excellent composite fertilizer.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of method for preparing fertilizer by allantoin production waste water, including：
1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；
2）Concentrate, black mature soil, phosphoric acid are subjected to haptoreaction, potassium chloride is then added into system and ammonia carries out secondary counter
Should；
3）Reacted mixed liquor is dried；
Wherein, two-step enrichment is：System is first cooled to 55-60 DEG C from the 70-80 DEG C of speed with 0.2-0.5 DEG C/min and is incubated
2-3h, then it is warming up to 65-70 DEG C with 1-1.5 DEG C/min speed and is incubated 0.5-1h.
In the step 2 of the present invention）In, the dosage of each material can select in wide scope, but in order that obtained
After-treatment products have more excellent fertilizer efficiency, it is preferable that in step 2）In, concentrate, black mature soil, phosphoric acid, potassium chloride and ammonia
The weight ratio of gas is 10：5-8：1-3：12-15：2-4：6-9.
In the step 2 of the present invention）In, catalytic condition can select in wide scope, but in order that be made
After-treatment products there is more excellent fertilizer efficiency, it is preferable that in step 2）In, haptoreaction meets following condition：Reaction temperature
Spend for 35-40 DEG C, reaction time 6-10h.
In the step 2 of the present invention）In, the condition of secondary response can select in wide scope, but in order that be made
After-treatment products there is more excellent fertilizer efficiency, it is preferable that in step 2）In, secondary response meets following condition：Reaction temperature
Spend for 65-70 DEG C, reaction time 5-8h.
In the step 2 of the present invention）In, dry condition can select in wide scope, but in order that after obtained
Processing product has more excellent fertilizer efficiency, it is preferable that in step 2）In, drying meets following condition：Drying temperature is 110-
120 DEG C, drying time 12-24h.
In the step 3 of the present invention）In, the moisture content of fertilizer can select in wide scope after drying, but in order that
Obtained after-treatment products have more excellent fertilizer efficiency, it is preferable that the moisture content of fertilizer is less than 0.5 weight % after drying.
In the step 3 of the present invention）In, the dosage of each material can select in wide scope, but in order that obtained
After-treatment products have more excellent fertilizer efficiency, it is preferable that the weight of mixed liquor and poultry dung ratio is 1：0.4-0.8.
In the step 3 of the present invention）In, heap condition can select in wide scope, but in order that locate after obtained
Reason product has more excellent fertilizer efficiency, it is preferable that heap meets following condition：Heap temperature be 25-35 DEG C, heap the time be
15-20 days.
Fertilizer is prepared by allantoin production waste water present invention also offers one kind, fertilizer should be prepared by allantoin production waste water
It is prepared by above-mentioned method.
The present invention will be described in detail by way of examples below.
Embodiment 1
1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；
2）Concentrate, black mature soil, phosphoric acid are subjected to haptoreaction（Reaction temperature is 38 DEG C, reaction time 8h）, then to body
Potassium chloride is added in system and ammonia carries out secondary response（Reaction temperature is 68 DEG C, reaction time 7h）, wherein, it is concentrate, black
Black earth soil, phosphoric acid, the weight ratio of potassium chloride and ammonia are 10：7：2：13：3：8；
3）Reacted mixed liquor is carried out with poultry dung according to 1：0.6 weight ratio is mixed, heaped（Heaping temperature is
30 DEG C, it is 18 days to heap the time）, dry（Drying temperature is 115 DEG C, drying time 18h）So that the fertilizer A1 is made；
Wherein, two-step enrichment is：System is first cooled to 58 DEG C from 75 DEG C of speed with 0.4 DEG C/min and is incubated 2.5h, then
68 DEG C are warming up to 1.3 DEG C/min speed and are incubated 0.8h.
Embodiment 2
1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；
2）Concentrate, black mature soil, phosphoric acid are subjected to haptoreaction（Reaction temperature is 35 DEG C, reaction time 6h）, then to body
Potassium chloride is added in system and ammonia carries out secondary response（Reaction temperature is 65 DEG C, reaction time 5h）, wherein, it is concentrate, black
Black earth soil, phosphoric acid, the weight ratio of potassium chloride and ammonia are 10：5：1：12：2：6；
3）By reacted mixed liquor and poultry dung according to 1：0.4 weight ratio is mixed, heaped（It is 25 to heap temperature
DEG C, it is 15 days to heap the time）, dry（Drying temperature is 110 DEG C, drying time 12h）So that the fertilizer A2 is made；
Wherein, two-step enrichment is：System is first cooled to 55 DEG C from 70 DEG C of speed with 0.2 DEG C/min and is incubated 2h, then with 1
DEG C/min speed is warming up to 65 DEG C and is incubated 0.5h.
Embodiment 3
1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；
2）Concentrate, black mature soil, phosphoric acid are subjected to haptoreaction（Reaction temperature is 40 DEG C, reaction time 10h）, then to body
Potassium chloride is added in system and ammonia carries out secondary response（Reaction temperature is 70 DEG C, reaction time 8h）, wherein, it is concentrate, black
Black earth soil, phosphoric acid, the weight ratio of potassium chloride and ammonia are 10：8：3：15：4：9；
3）By reacted mixed liquor and poultry dung according to 1：0.8 weight ratio is mixed, heaped（It is 35 to heap temperature
DEG C, it is 20 days to heap the time）, dry（Drying temperature is 120 DEG C, drying time 24h）So that the fertilizer A3 is made；
Wherein, two-step enrichment is：System is first cooled to 60 DEG C from 80 DEG C of speed with 0.5 DEG C/min and is incubated 3h, then with
1.5 DEG C/min speed is warming up to 70 DEG C and is incubated 1h.
Detect example 1
10cm corn seedling 4 batches is planted, the above-mentioned composite fertilizer A1-A3 of weight such as applies below soil before planting respectively
Or commercially available composite fertilizer, the height of every batch of maize seedling is counted after 10 days, is specifically shown in Table 1.
Table 1
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited to the tool in above-mentioned embodiment
Body details, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, these letters
Monotropic type belongs to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (9)
- A kind of 1. method that fertilizer is prepared by allantoin production waste water, it is characterised in that including：1）Allantoin production waste water is passed through into two-step enrichment to form concentrate；2）The concentrate, black mature soil, phosphoric acid are subjected to haptoreaction, potassium chloride is then added into system and ammonia carries out two Secondary response；3）Reacted mixed liquor is mixed with poultry dung, heaped, is dried so that the fertilizer is made；Wherein, the two-step enrichment is：System is first cooled to 55-60 from the 70-80 DEG C of speed with 0.2-0.5 DEG C/min DEG C and be incubated 2-3h, be then warming up to 65-70 DEG C with 1-1.5 DEG C/min speed and be incubated 0.5-1h.
- 2. according to the method for claim 1, it is characterised in that in step 2）In, the concentrate, black mature soil, phosphoric acid, chlorine The weight ratio for changing potassium and ammonia is 10：5-8：1-3：12-15：2-4：6-9.
- 3. method according to claim 1 or 2, it is characterised in that in step 2）In, the haptoreaction meets following bar Part：Reaction temperature is 35-40 DEG C, reaction time 6-10h.
- 4. according to the method for claim 3, it is characterised in that in step 2）In, the secondary response meets following condition： Reaction temperature is 65-70 DEG C, reaction time 5-8h.
- 5. according to the method described in any one in claim 1,2 and 4, it is characterised in that in step 2）In, the drying is expired It is enough lower condition：Drying temperature is 110-120 DEG C, drying time 12-24h.
- 6. according to the method for claim 5, it is characterised in that the moisture content of fertilizer is less than 0.5 weight % after drying.
- 7. according to the method described in any one in claim 1,2 and 4, it is characterised in that the mixed liquor and poultry dung Weight ratio be 1：0.4-0.8.
- 8. according to the method described in any one in claim 1,2 and 4, it is characterised in that the heap meets following condition： It is 25-35 DEG C to heap temperature, and it is 15-20 days to heap the time.
- 9. a kind of fertilizer prepared by allantoin production waste water, it is characterised in that the fertilizer passes through any in claim 1-8 Method described in one is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711238280.XA CN107857620A (en) | 2017-11-30 | 2017-11-30 | A kind of method and fertilizer that fertilizer is prepared by allantoin production waste water |
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| CN201711238280.XA CN107857620A (en) | 2017-11-30 | 2017-11-30 | A kind of method and fertilizer that fertilizer is prepared by allantoin production waste water |
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Cited By (4)
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|---|---|---|---|---|
| CN108975978A (en) * | 2018-08-28 | 2018-12-11 | 茆振斌 | The processing method of allantoin production waste liquid |
| CN108975979A (en) * | 2018-08-28 | 2018-12-11 | 茆振斌 | The compound fertilizer as made from allantoin production waste liquid and preparation method thereof |
| CN109020669A (en) * | 2018-08-28 | 2018-12-18 | 茆振斌 | A kind of processing method of allantoin production waste liquid |
| CN109134042A (en) * | 2018-08-28 | 2019-01-04 | 茆振斌 | It is a kind of as allantoin production waste liquid made from compound fertilizer and preparation method thereof |
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| CN108975978A (en) * | 2018-08-28 | 2018-12-11 | 茆振斌 | The processing method of allantoin production waste liquid |
| CN108975979A (en) * | 2018-08-28 | 2018-12-11 | 茆振斌 | The compound fertilizer as made from allantoin production waste liquid and preparation method thereof |
| CN109020669A (en) * | 2018-08-28 | 2018-12-18 | 茆振斌 | A kind of processing method of allantoin production waste liquid |
| CN109134042A (en) * | 2018-08-28 | 2019-01-04 | 茆振斌 | It is a kind of as allantoin production waste liquid made from compound fertilizer and preparation method thereof |
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Application publication date: 20180330 |