CN107840690A - A kind of method of heavy metal in removal biological organic fertilizer - Google Patents
A kind of method of heavy metal in removal biological organic fertilizer Download PDFInfo
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- CN107840690A CN107840690A CN201711172182.0A CN201711172182A CN107840690A CN 107840690 A CN107840690 A CN 107840690A CN 201711172182 A CN201711172182 A CN 201711172182A CN 107840690 A CN107840690 A CN 107840690A
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- organic fertilizer
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- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 113
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000001179 sorption measurement Methods 0.000 claims abstract description 59
- 239000002245 particle Substances 0.000 claims abstract description 52
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000000855 fermentation Methods 0.000 claims abstract description 34
- 230000004151 fermentation Effects 0.000 claims abstract description 34
- 239000012802 nanoclay Substances 0.000 claims abstract description 31
- 235000010469 Glycine max Nutrition 0.000 claims abstract description 26
- 244000068988 Glycine max Species 0.000 claims abstract description 26
- 239000002374 bone meal Substances 0.000 claims abstract description 26
- 229940036811 bone meal Drugs 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 25
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 150000002500 ions Chemical class 0.000 claims description 45
- 238000002156 mixing Methods 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910001868 water Inorganic materials 0.000 claims description 23
- 230000000694 effects Effects 0.000 claims description 22
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 claims description 21
- 229910001603 clinoptilolite Inorganic materials 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 11
- 238000010008 shearing Methods 0.000 claims description 10
- 241001465754 Metazoa Species 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 241000251468 Actinopterygii Species 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000010902 straw Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims 1
- 102000004169 proteins and genes Human genes 0.000 abstract description 7
- 108090000623 proteins and genes Proteins 0.000 abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910021536 Zeolite Inorganic materials 0.000 abstract description 4
- 239000010457 zeolite Substances 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 16
- 239000003337 fertilizer Substances 0.000 description 12
- 235000013339 cereals Nutrition 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000002361 compost Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 210000003608 fece Anatomy 0.000 description 4
- 244000144972 livestock Species 0.000 description 4
- 244000144977 poultry Species 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000012271 agricultural production Methods 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229960000892 attapulgite Drugs 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000009335 monocropping Methods 0.000 description 2
- 229910052625 palygorskite Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 241000605222 Acidithiobacillus ferrooxidans Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000228150 Penicillium chrysogenum Species 0.000 description 1
- 241000235342 Saccharomycetes Species 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 241000605118 Thiobacillus Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/80—Separation, elimination or disposal of harmful substances during the treatment
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a kind of method for removing heavy metal in biological organic fertilizer.By preparing using nanoclay, zeolite, iron oxide and soda lime as adsorption functional material, using soybean cake dregs, bone meal as protein material adsorption particle, make heavy metal ion fully exposure and adsorbed granular absorption and the fixation in organic fertilizer resource using fermentation, finally it is filtered to remove adsorption particle, you can realize the heavy-metal ion removal from biological organic fertilizer.This method makes the heavy metal ion in organic fertilizer resource fully expose by fermentation, it is ensured that effective quick adsorption, while fixed by protein material and complex, absorption stability is higher, and wide adaptability, clearance is high, effectively prevents it from discharging pollution organic fertilizer again.
Description
Technical field
The present invention relates to fertilizer preparing technical field, and in particular to heavy metal in organic fertilizer is removed, more particularly to one kind
The method for removing heavy metal in biological organic fertilizer.
Background technology
With developing rapidly for industrial and agricultural production, the long-term unreasonable use of chemical fertilizer, soil pollution is not only caused, is also made
Into ecological environmental pollution.Excessive chemical fertilizer has aggravated water pollution and eutrophication into soil, makes water quality deterioration, agricultural production quality
Amount declines and has triggered the food-safety problem of series.It is in addition unilateral to this predation formula cropping pattern of soil for a long time
Chemical fertilizer largely is used, soil ecology balance is ultimately resulted in and is seriously damaged, soil fertility declines, and therefore, develops organic fertilizer
It is both that people require to improve the needs of food quality, and the needs of agricultural sustainable development strategy.
Biological organic fertilizer refers to microorganisms with specific functions and mainly with plant and animal residues（Such as feces of livestock and poultry, agricultural crop straw
Deng）The one kind being combined for source and through harmless treatment, decomposed organic materials has microbial manure and organic fertilizer efficiency concurrently
The fertilizer answered.Biological organic fertilizer nutrient is complete, can improved soil, improvement use soil hardening caused by chemical fertilizer.Improve
Soil physical and chemical property, enhancing soil water-retaining, fertilizer conservation, the ability of fertilizer.After beneficial microbe in biological organic fertilizer enters soil
Mutual symbiosis Relationship With Proliferation is formed with Soil Microorganism, suppresses harmful bacteria growing and is converted into beneficial bacterium, beneficial bacterium exists
Substantial amounts of metabolite is produced during growth and breeding, promotes the decomposition and inversion of organic matter, promotes and regulates and controls plant growth.Improve
Soil porosity, penetrating exchangeability and plant survival rate, increase beneficial bacterium and edaphon and population.Meanwhile in root of the crop
The advantage profitable strain that system is formed can suppress harmful pathogen procreation, and the degeneration-resistant resistance against diseases of enhancing crop reduces the disease of continuous cropping crop
Feelings index, continuous cropping obstacle can be alleviated significantly by applying year after year, be reduced environmental pollution, and be a kind of ring to people, animal, Environmental security, nontoxic
Guarantor's type fertilizer.
While biological organic fertilizer has above-mentioned excellent properties, also there are some drawbacks, except having mismanagement, fertilizer amount
Factor all can inevitably cause the pollution of soil, air with application process is improper etc., and be detrimental to health, and be formed very big
Negative effect outside, because in animal and fowl fodder, due to trace elements such as a large amount of addition copper, iron, zinc, manganese, cobalt, selenium and iodine so that permitted
Cause the micronutrient levels in livestock and poultry muck is exceeded to ask in feces of livestock and poultry not by the microelement accumulation of livestock and poultry absorption more
Topic, especially copper, arsenic and mercury etc. murder by poisoning element are also indivedual exceeded, cause the heavy metal pollution to soil, cause a veterinary antibiotics huge sum of money
Belong to content overproof, pollution-free food is threatened safely, having become restriction fowl and animal excrement recycling and aquaculture can hold
The critical bottleneck of supervention exhibition.The method that heavy metal controls in organic fertilizer at present, which has to control in Sources controlling and fertilizer, to be removed, including
Chemical method, biosorption process, bioleaching, electrochemical process etc..
Chinese invention patent application number 201610604784.8 discloses content of beary metal in a kind of reduction pig manure
Composite passivant and its application, including following component：Bentonite, rice straw powder, turf, diatomite, plant ash, zeolite.
Chinese invention patent application number 201610763567.3 disclose in a kind of organic fertilizer the inorganic agent of heavy metal and its
Preparation method and innoxious organic fertilizer, inorganic agent are made up of charcoal, attapulgite and natrium carbonicum calcinatum, comprised the following steps：
Distilled water is added in charcoal, stirs to obtain the first suspension；Attapulgite is added into the first suspension, stirs second suspended
Liquid；Natrium carbonicum calcinatum is added into the second suspension, stirs to obtain charcoal-attapulgite-sodium carbonate suspension；By charcoal-
Attapulgite-sodium carbonate suspension filtering, dries, grinding, that is, inorganic agent is made；Inorganic agent is added in organic fertilizer, produced
The innoxious organic fertilizer of heavy metal.
Chinese invention patent application number 200910144361.2 discloses weight in a kind of removal solid organic castoff compost
The method of metal, comprises the following steps:Sulphur powder, compost are added into solid organic castoff compost；Add seven hydrated sulfuric acids Asia
Ferrous solution；Microbe inoculation compound bacteria, is mainly contained:Thiobacillus ferrooxidans, Thiobacillus thioxidans, white-rot fungi, saccharomycete,
Penicillium notatum, inoculation；Inoculated compost is placed on heap bed and carries out spray leaching；After the completion of leaching, white lime is added in compost
PH is adjusted as neutrality.
Chinese invention patent application number 201610177509.2 discloses a kind of micro-nano mineral material of purification of heavy metal sludge
Material and preparation method thereof, the micro-nano mineral material that this method uses is the layer aluminosilicate such as bentonite, zeolite powder, concave convex rod
Class, clay mineral have very strong adsorption capacity to the molecular state in sludge, ionic state pollutant or heavy metal ion, can produce huge
Big surface energy and internal surface area, therefore pollutant and heavy metal ion in crossover fixation sludge can be adsorbed.
According to above-mentioned, contain the weight such as a certain amount of copper, arsenic and mercury using wider fowl and animal excrement class biological organic fertilizer at present
Metallic element, while indivedual exceeded, causes the heavy metal pollution to soil, and change traditional in existing heavy metal control technology
Method need to consume a large amount of chemical reagent, costly, easily cause secondary pollution and cumbersome to environment, biosorption process without
Method is effective for industrialization promotion, and the bioleaching holdup time is longer to lead to not use on a large scale, and electrochemical process is not for
The heavy metal of solvent can not be removed effectively.
The content of the invention
It is exceeded individually to make for containing a certain amount of heavy metal element using wider fowl and animal excrement class biological organic fertilizer at present
The heavy metal pollution of paired soil, and traditional heavy metal control technology exist process it is cumbersome, it is costly, easily environment is caused
It secondary pollution, can not effectively remove, and can not be promoted effective for industrially scalable for the heavy metal of not solvent, the present invention
A kind of method for removing heavy metal in biological organic fertilizer is proposed, so as to the heavy metal that effectively adsorbs and degrade, reaching effectively to reduce has
The purpose of heavy metal ion in machine fertilizer.
Concrete technical scheme of the present invention is as follows：
A kind of method of heavy metal in removal biological organic fertilizer, make the heavy metal ion in organic fertilizer resource fully sudden and violent by fermentation
Dew, nanoclay, zeolite, iron oxide and soda lime composition function material absorption degradation conversion heavy metal in adsorption particle from
Son, soybean cake dregs, bone meal are fixed as protein material and complex, so as to effectively reduce the weight in organic fertilizer resource
Metal ion content, specifically include following steps：
（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer
It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw
Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；
The total mass fraction of each component is in terms of 100 parts in the adsorption particle, wherein 5 ~ 20 parts of nanoclay；Natural clinoptilolite
20 ~ 30 parts；5 ~ 10 parts of iron oxide；10 ~ 15 parts of soda lime；20 ~ 30 parts of soybean cake dregs；10 ~ 20 parts of bone meal；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 2:3~3:2；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:5-10 is mixed, and is sealed to completely cut off
Air, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer.
Preferably, the nanoclay particle diameter is 20-50nm.
Preferably, the soda lime is the white or cream-coloured toner of calcium hydroxide, sodium hydroxide, potassium hydroxide and water composition
The content at end, wherein calcium hydroxide is not less than 75%.
Preferably, the soybean cake dregs protein content is 40 ~ 50%.
Preferably, the bone meal is at least one of coarse bone powder or steamed bone meal.
Preferably, the organic fertilizer resource is at least one of fowl and animal excrement, kitchen castoff, agricultural crop straw.
Preferably, the mixer is horizontal colter mixer, V-Mixer, double-spiral conical mixer or horizontal spiral shell
With one kind in mixer；The mixing rotating speed of the mixer is 150 ~ 200r/min, and the time is 40 ~ 50min.
Preferably, the head pressure of the extruder is 10 ~ 25MPa, and screw rod can be one start screw, double thread or bull
One kind in screw thread, screw diameter are 60 ~ 90mm, screw slenderness ratio 24:1~30:1, rotating speed is 20 ~ 100r/min.
Preferably, the kneader, stirrer paddle can be fish tail type agitating paddle, Z-type agitating paddle, cutting-type agitating paddle or Σ
One kind in type agitating paddle, discharge method can be hydraulic pressure turn over cylinder topple over, Screw Extrusion or ball valve discharging in one kind.
Preferably, the environment temperature of the fermentation process is 10 ~ 20 DEG C, and fermentation time is 8 ~ 12h.
In above-mentioned adsorption particle, nanoclay, clinoptilolite, iron oxide and soda lime, will as adsorption functional material
It is heavy metal ion adsorbed in the surface of particle and hole in organic fertilizer resource, and albumen material is used as using soybean cake dregs, bone meal
Material, complex reaction occurs with heavy metal ion, makes heavy metal ion that chemical bond occur with adsorption particle, is fixedly secured.Naturally
Clinoptilolite has suitable channel diameter and open skeleton structure, has excellent adsorptivity and ion exchangeable, when it
, can be by simply either physically or chemically making its effective regeneration, so as to reach after adsorption capacity or exchange capacity reach saturation
The purpose recycled.Iron oxide is the main composition of metallic iron oxidation product, and structure is more loose, due to its magnetic property, is had
Beneficial to the absorption of heavy metal ion.Soda lime is also loose and porous structure, higher to the adsorption capacity of small molecule or ion, and
It is cheap due to its wide material sources, advantageously reduce cost in addition system.Soybean cake dregs and bone meal are all natural material,
Containing abundant protein, on the one hand protein can occur complex reaction with heavy metal ion and form chemical bond, inhale physics
Attached to be changed into chemisorbed, adsorption capacity is stronger, and the molecule long-chain of another aspect protein can be to small molecule adsorption functional material
And heavy metal ion is wound cladding, adsorption particle is turned into an entirety, be advantageous to particle and heavy metal from organic fertilizer
It is separated off.
The invention provides a kind of method for removing heavy metal in biological organic fertilizer, compared with prior art, what it was protruded
Feature and excellent effect are：
1st, propose and adsorption particle is prepared simultaneously using nanoclay, clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal
Method for removing heavy metal ion in organic fertilizer.
2nd, the heavy metal ion in organic fertilizer resource is fully exposed by fermentation, be advantageous to adsorption particle heavy metal ion
Quick adsorption.
3rd, protein material is used as by soybean cake dregs, bone meal and complex is fixed, it is stable to improve absorption
Property.
4th, wide adaptability is high available for the Adsorption of contents of many kinds of heavy metal ion, clearance.
5th, the heavy metal ion of absorption can forever be removed with adsorption particle, prevent it from discharging pollution organic fertilizer again.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
It is formulated and is：20 parts of nanoclay, 20 parts of natural clinoptilolite, 10 parts of iron oxide, 10 parts of soda lime, 30 parts of soybean cake dregs,
10 parts of bone meal；
Removal process is：
（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer
It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw
Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；The particle diameter of nanoclay is
20nm；Mixer is horizontal colter mixer；The mixing rotating speed of mixer is 200r/min, time 40min；The machine of extruder
Head pressure is 25MPa, screw diameter 60mm, screw slenderness ratio 30:1, rotating speed 100r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 2:3；Kneader
Can be plain edition kneader, power of motor 55kW, stirrer paddle can be fish tail type agitating paddle；Discharge method can go out for ball valve
Material；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:5 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 20 DEG C, fermentation time 8h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of embodiment 1 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Embodiment 2
It is formulated and is：5 parts of nanoclay, 20 parts of natural clinoptilolite, 10 parts of iron oxide, 15 parts of soda lime, 30 parts of soybean cake dregs, bone
20 parts of powder；
Removal process is：
（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer
It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw
Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；The particle diameter of nanoclay is
30nm；Mixer is V-Mixer；The mixing rotating speed of mixer is 180r/min, time 45min；The head pressure of extruder
Power is 15MPa, screw diameter 70mm, screw slenderness ratio 28:1, rotating speed 80r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 1:1；Kneader
Can be pressure-type kneader, power of motor 22kW, stirrer paddle can be Σ type agitating paddles；Discharge method can be that ball valve discharges；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:6 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 20 DEG C, fermentation time 8h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of embodiment 2 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Embodiment 3
It is formulated and is：15 parts of nanoclay, 20 parts of natural clinoptilolite, 5 parts of iron oxide, 15 parts of soda lime, 30 parts of soybean cake dregs, bone
15 parts of powder；
Removal process is：
（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer
It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw
Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；The particle diameter of nanoclay is
35nm；Mixer is double-spiral conical mixer；The mixing rotating speed of mixer is 200r/min, time 40min；Extruder
Head pressure is 25MPa, screw diameter 90mm, screw slenderness ratio 30:1, rotating speed 40r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 3:2；Kneader
Can be plain edition kneader, power of motor 30kW, stirrer paddle can be cutting-type agitating paddle；Discharge method can squeeze for screw rod
Go out；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:7 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 15 DEG C, fermentation time 12h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of embodiment 3 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Embodiment 4
It is formulated and is：10 parts of nanoclay, 30 parts of natural clinoptilolite, 10 parts of iron oxide, 15 parts of soda lime, 20 parts of soybean cake dregs,
15 parts of bone meal；
Removal process is：
（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer
It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw
Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；The particle diameter of nanoclay is
40nm；Mixer is Horizontal type helical ribbon mixer；The mixing rotating speed of mixer is 200r/min, time 40min；The machine of extruder
Head pressure is 20MPa, screw diameter 70mm, screw slenderness ratio 26:1, rotating speed 60r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 2:3；Kneader
Can be pressure-type kneader, power of motor 40kW, stirrer paddle can be Z-type agitating paddle；Discharge method can be that ball valve discharges；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:8 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 13 DEG C, fermentation time 10h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of embodiment 4 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Embodiment 5
It is formulated and is：15 parts of nanoclay, 25 parts of natural clinoptilolite, 10 parts of iron oxide, 15 parts of soda lime, 20 parts of soybean cake dregs,
15 parts of bone meal；
Removal process is：
（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer
It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw
Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；The particle diameter of nanoclay is
20nm；Mixer is double-spiral conical mixer；The mixing rotating speed of mixer is 160r/min, time 48min；Extruder
Head pressure is 18MPa, screw diameter 80mm, screw slenderness ratio 30:1, rotating speed 100r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 3:2；Kneader
Can be pressure-type kneader, power of motor 11kW, stirrer paddle can be fish tail type agitating paddle；Discharge method can go out for ball valve
Material；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:10 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 12 DEG C, fermentation time 11h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of embodiment 5 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Comparative example 1
It is formulated and is：15 parts of nanoclay, 15 parts of soda lime, 20 parts of soybean cake dregs, 15 parts of bone meal；
Removal process is：
（1）Nanoclay, soda lime, soybean cake dregs and bone meal are well mixed in mixer, add the feeding machine of extruder
Structure, extruder grain is carried out at normal temperatures, compound is further homogenized under the shearing of extruder screw and squeezing action, and viscous
Bonded together under the stickiness effect of soil, form adsorption particle；The particle diameter of nanoclay is 20nm；Mixer is double helix taper
Mixer；The mixing rotating speed of mixer is 160r/min, time 48min；The head pressure of extruder is 18MPa, and screw rod is straight
Footpath is 80mm, screw slenderness ratio 30:1, rotating speed 100r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 3:2；Kneader
Can be pressure-type kneader, power of motor 11kW, stirrer paddle can be fish tail type agitating paddle；Discharge method can go out for ball valve
Material；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:10 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 12 DEG C, fermentation time 11h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of comparative example 1 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Comparative example 2
It is formulated and is：15 parts of nanoclay, 25 parts of natural clinoptilolite, 10 parts of iron oxide；
Removal process is：
（1）Nanoclay, natural clinoptilolite, iron oxide are well mixed in mixer, add the feeding machanism of extruder,
Extruder grain is carried out at normal temperatures, compound is further homogenized under the shearing of extruder screw and squeezing action, and in clay
Stickiness effect under bond together, formed adsorption particle；The particle diameter of nanoclay is 20nm；Mixer is that double helix taper mixes
Conjunction machine；The mixing rotating speed of mixer is 160r/min, time 48min；The head pressure of extruder is 18MPa, screw diameter
For 80mm, screw slenderness ratio 30:1, rotating speed 100r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 3:2；Kneader
Can be pressure-type kneader, power of motor 11kW, stirrer paddle can be fish tail type agitating paddle；Discharge method can go out for ball valve
Material；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:10 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 12 DEG C, fermentation time 11h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of comparative example 2 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Comparative example 3
It is formulated and is：25 parts of natural clinoptilolite, 10 parts of iron oxide, 15 parts of soda lime, 20 parts of soybean cake dregs, 15 parts of bone meal；
Removal process is：
（1）Natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are well mixed in mixer, add extruding
The feeding machanism of machine, carries out extruder grain at normal temperatures, and compound is further under the shearing of extruder screw and squeezing action
Homogenizing, form adsorption particle；Mixer is double-spiral conical mixer；The mixing rotating speed of mixer is 160r/min, and the time is
48min；The head pressure of extruder is 18MPa, screw diameter 80mm, screw slenderness ratio 30:1, rotating speed 100r/min；
（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating,
Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 3:2；Kneader
Can be pressure-type kneader, power of motor 11kW, stirrer paddle can be fish tail type agitating paddle；Discharge method can go out for ball valve
Material；
（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:10 mixing, are sealed to completely cut off sky
Gas, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate
It is fixed；The environment temperature of fermentation process is 12 DEG C, fermentation time 11h；
（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer；
The method of comparative example 3 removes the heavy metal ion in organic fertilizer, its clearance, adsorption efficiency, absorption stability and removal
It is permanent as shown in table 1.
Embodiment 1-5, comparative example 1-3 method are used for the processing with a collection of organic fertilizer resource, the treatment effect such as institute of table 1
Show.
Table 1：
Claims (10)
- A kind of 1. method for removing heavy metal in biological organic fertilizer, it is characterised in that comprise the following steps：（1）Nanoclay, natural clinoptilolite, iron oxide, soda lime, soybean cake dregs and bone meal are mixed in mixer It is even, the feeding machanism of extruder is added, carries out extruder grain at normal temperatures, compound is made in the shearing and extruding of extruder screw Further it is homogenized with lower, and is bonded together under the stickiness effect of clay, forms adsorption particle；The total mass fraction of each component is in terms of 100 parts in the adsorption particle, wherein 5 ~ 20 parts of nanoclay；Natural clinoptilolite 20 ~ 30 parts；5 ~ 10 parts of iron oxide；10 ~ 15 parts of soda lime；20 ~ 30 parts of soybean cake dregs；10 ~ 20 parts of bone meal；（2）Organic fertilizer resource and water are added in kneader, under the intensive shear effect for a pair of the blades for cooperating and rotating, Uniform mixing is realized, organic fertilizer slurry is made；The mixing quality ratio of the organic fertilizer resource and water is 2:3~3:2；（3）By step（1）Adsorption particle and step（2）Organic fertilizer slurry with mass ratio 1:5-10 is mixed, and is sealed to completely cut off Air, it is In Shade to be fermented, the heavy metal ion in organic fertilizer resource is fully exposed, and be adsorbed granular absorption and consolidate It is fixed；（4）After fermentation ends, adsorption particle is filtered to remove, you can realize the heavy-metal ion removal from biological organic fertilizer.
- A kind of 2. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（1）Institute It is 20-50nm to state nanoclay particle diameter.
- A kind of 3. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（1）Institute State white or Beige powder of the soda lime for calcium hydroxide, sodium hydroxide, potassium hydroxide and water composition, wherein calcium hydroxide Content is not less than 75%.
- A kind of 4. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（1）Institute Soybean cake dregs protein content is stated as 40 ~ 50%.
- A kind of 5. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（1）Institute It is at least one of coarse bone powder or steamed bone meal to state bone meal.
- A kind of 6. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（1）Institute Mixer is stated as one kind in horizontal colter mixer, V-Mixer, double-spiral conical mixer or Horizontal type helical ribbon mixer； The mixing rotating speed of the mixer is 150 ~ 200r/min, and the time is 40 ~ 50min.
- A kind of 7. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（2）Institute The head pressure for stating extruder is 10 ~ 25MPa, and screw rod is one kind in one start screw, double thread or multiple thread, and screw rod is straight Footpath is 60 ~ 90mm, screw slenderness ratio 24:1~30:1, rotating speed is 20 ~ 100r/min.
- A kind of 8. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（2）Institute Organic fertilizer resource is stated as at least one of fowl and animal excrement, kitchen castoff, agricultural crop straw.
- A kind of 9. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：Step（2）Institute Stirring paddle of kneading machine leaf is stated as one kind in fish tail type agitating paddle, Z-type agitating paddle, cutting-type agitating paddle or Σ type agitating paddles, is gone out Material mode be hydraulic pressure turn over cylinder topple over, Screw Extrusion or ball valve discharging in one kind.
- A kind of 10. method for removing heavy metal in biological organic fertilizer according to claim 1, it is characterised in that：The fermentation The environment temperature of process is 10 ~ 20 DEG C, and fermentation time is 8 ~ 12h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650974A (en) * | 2019-01-14 | 2019-04-19 | 湖南大学 | Nitrogen loss and the method for improving composting production fertilizer efficiency in composting process are reduced using ferriferous oxide nano material |
| CN112296061A (en) * | 2019-07-30 | 2021-02-02 | 王均 | Harmless treatment method for slag and application of treated slag |
| CN112979357A (en) * | 2021-02-26 | 2021-06-18 | 华东师范大学重庆研究院 | Method for adsorbing and removing heavy metals in green organic fertilizer |
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| CN202499816U (en) * | 2012-03-08 | 2012-10-24 | 熊汉夫 | Device for removing heavy metals from fertilizer made from household garbage |
| CN104437425A (en) * | 2014-10-30 | 2015-03-25 | 青岛昌安达药业有限公司 | Industrial wastewater adsorbing material |
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| CN202499816U (en) * | 2012-03-08 | 2012-10-24 | 熊汉夫 | Device for removing heavy metals from fertilizer made from household garbage |
| CN102603143A (en) * | 2012-04-05 | 2012-07-25 | 熊汉夫 | Dual process capable of removing heavy metal ions and carrying out microorganism deep anaerobic fermentation |
| CN104437425A (en) * | 2014-10-30 | 2015-03-25 | 青岛昌安达药业有限公司 | Industrial wastewater adsorbing material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650974A (en) * | 2019-01-14 | 2019-04-19 | 湖南大学 | Nitrogen loss and the method for improving composting production fertilizer efficiency in composting process are reduced using ferriferous oxide nano material |
| CN109650974B (en) * | 2019-01-14 | 2021-07-09 | 湖南大学 | A method for reducing nitrogen loss in composting process and improving fertilizer efficiency of composting products by using iron oxide nanomaterials |
| CN112296061A (en) * | 2019-07-30 | 2021-02-02 | 王均 | Harmless treatment method for slag and application of treated slag |
| CN112979357A (en) * | 2021-02-26 | 2021-06-18 | 华东师范大学重庆研究院 | Method for adsorbing and removing heavy metals in green organic fertilizer |
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