CN101863688B - Method for preparing water soluble quick-acting organic fertilizer from activated sludge - Google Patents
Method for preparing water soluble quick-acting organic fertilizer from activated sludge Download PDFInfo
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- CN101863688B CN101863688B CN2009100494458A CN200910049445A CN101863688B CN 101863688 B CN101863688 B CN 101863688B CN 2009100494458 A CN2009100494458 A CN 2009100494458A CN 200910049445 A CN200910049445 A CN 200910049445A CN 101863688 B CN101863688 B CN 101863688B
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- active sludge
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000010802 sludge Substances 0.000 title claims abstract description 34
- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 38
- 239000000126 substance Substances 0.000 claims abstract description 34
- 239000003337 fertilizer Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 12
- 238000007738 vacuum evaporation Methods 0.000 claims abstract description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 10
- 239000002921 fermentation waste Substances 0.000 claims abstract description 7
- 238000009655 industrial fermentation Methods 0.000 claims abstract description 7
- 244000144972 livestock Species 0.000 claims abstract description 7
- 244000144977 poultry Species 0.000 claims abstract description 7
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 45
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 32
- 230000000694 effects Effects 0.000 claims description 25
- 230000007062 hydrolysis Effects 0.000 claims description 22
- 238000006460 hydrolysis reaction Methods 0.000 claims description 22
- 210000003608 fece Anatomy 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- 229910021529 ammonia Inorganic materials 0.000 claims description 16
- 238000001223 reverse osmosis Methods 0.000 claims description 16
- 239000000706 filtrate Substances 0.000 claims description 15
- 239000000047 product Substances 0.000 claims description 15
- 238000000108 ultra-filtration Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- 238000006555 catalytic reaction Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000003301 hydrolyzing effect Effects 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 241000196324 Embryophyta Species 0.000 claims description 7
- 150000001722 carbon compounds Chemical class 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
- 241000675108 Citrus tangerina Species 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 150000001413 amino acids Chemical class 0.000 claims description 4
- -1 aminosaccharide Chemical class 0.000 claims description 4
- RANHLFAPKWTQOO-UHFFFAOYSA-N aniline;propane Chemical class CCC.NC1=CC=CC=C1 RANHLFAPKWTQOO-UHFFFAOYSA-N 0.000 claims description 4
- 150000001720 carbohydrates Chemical class 0.000 claims description 4
- 150000005846 sugar alcohols Chemical class 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 150000002897 organic nitrogen compounds Chemical class 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 241001465754 Metazoa Species 0.000 claims description 2
- 239000003818 cinder Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910001447 ferric ion Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- 235000015097 nutrients Nutrition 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 5
- 230000018044 dehydration Effects 0.000 abstract description 3
- 238000006297 dehydration reaction Methods 0.000 abstract description 3
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000000811 xylitol Substances 0.000 abstract description 2
- 235000010447 xylitol Nutrition 0.000 abstract description 2
- 229960002675 xylitol Drugs 0.000 abstract description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 abstract 2
- 230000035558 fertility Effects 0.000 abstract 1
- 239000010902 straw Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 239000010871 livestock manure Substances 0.000 description 7
- 239000000618 nitrogen fertilizer Substances 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 6
- 230000008016 vaporization Effects 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 229940072033 potash Drugs 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 5
- 235000015320 potassium carbonate Nutrition 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002361 compost Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000005431 greenhouse gas Substances 0.000 description 4
- 239000000413 hydrolysate Substances 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 235000014633 carbohydrates Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011552 falling film Substances 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 239000011344 liquid material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002696 manganese Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 1
- 241000256113 Culicidae Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- DYUQAZSOFZSPHD-UHFFFAOYSA-N Phenylpropyl alcohol Natural products CCC(O)C1=CC=CC=C1 DYUQAZSOFZSPHD-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005183 environmental health Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 125000003473 lipid group Chemical group 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 210000001082 somatic cell Anatomy 0.000 description 1
- 235000013555 soy sauce Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a method for preparing a water soluble quick-acting organic fertilizer from activated sludge. In the method, the activated sludge is used as a main material, livestock and poultry excrement and sorted organic domestic garbage or furfural slag, xylitol slag, industrial fermentation waste residue or crop straws are used as auxiliary materials, and the main material and the auxiliary materials are subjected to chemical catalytic degradation, ammonia-fixing treatment, solid-liquid separation, membrane concentration to remove heavy metal, vacuum evaporation and concentration, and dehydration to form a closed cycle without three wastes; the prepared water soluble quick-acting organic fertilizer with high additional value can be used as a base fertilizer and an additional fertilizer. The method has the advantages of greatly reducing the using amount of the fertilizer, greatly improving nutrient utilization rate, greatly reducing pollution due to wastage of the fertilizer, improving the quality of agricultural products, optimizing soil structure, and quickly increasing soil fertility.
Description
Technical field
The present invention relates to a kind of method of producing fertilizer, be specifically related to a kind of method that organic solid castoff is manufactured fertilizer of applying, belong to organic solid castoff comprehensive utilization composting material field.
Background technology
Traditional fertilizer manufacture method is to utilize feces of livestock and poultry to carry out compost fermentation, and fermentation time is 20 days-30 days, and what have reaches 60 days.In fermenting process, produce a large amount of greenhouse gases and foul gas, cause the mosquitos and flies parasitism, environmental health is very poor.In fermenting process, organotrophy carbohydrate and organic acid all change into greenhouse gases and lose.Fermented manure is the class humic acid of the remaining quite stable that can not decompose again only.Its effect can only be as base manure, and the improvement Soil structure, play to a certain extent water conservation, function of fertilizer retention, there is no direct trophism.Traditional fermented manure can only be made base manure and can not do and topdress, and is organic quick-acting nutritious in default of soluble small molecular.Produce organic farm products and require use fermented manure, it yields poorly, and be the 20%-30% of output to fertilize, and amount of application is large, and every mu of amount of application is up to the 2-3 ton, and the disease and pest generation is often arranged.
The chemical catalysis hydrolysis process for treating that China Patent Publication No. CN1868976 introduces, the aqueous solution produced because of steam heating in reaction in tank, first, after dehydration in tank, also will dehydrate outside tank, and primary product is water-insoluble solid substance.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method with preparing water soluble quick-acting organic fertilizer from activated sludge, to solve the existing existing many weak points of compost fermentation, overcome the compost fermentation cycle long, be not easy to do and topdress, the shortcoming yielded poorly etc.The fertilizer that this invention is manufactured is applicable on field crop, green house of vegetables, fruit tree and cash crop, and this fertilizer can be used as base manure, also can be used as and topdresses.
The present invention adopts the active sludge of organic solid castoff such as sewage work, take the organic nitrogen compound of dead thalline as main because of the organic composition of active sludge, and other kinds are that the organic carbon compound is main, and the two cooperation reaches nitrogen, carbon balance.The organic carbon owner wants composition to be specially hydrolysate six carbon candys and the five carbon candys of Mierocrystalline cellulose, hemicellulose, the xylogen hydrolysate is the phenylpropyl alcohol alkanes of different oligopolymer, the fat splitting product is lipid acid and glycerine, in active sludge, the tropina hydrolysate is peptide class, amino acids, somatic cells wall hydrolysate is oligose, amino sugae, in hydrolytic process, produce organic acid, formic acid, acetic acid.Above-mentioned product, in interreaction, carries out molecular transposition, produces Maillard reaction, produces a series of dissimilar aminosaccharide mixture, and nitrogen is fixed, and no longer continues degraded, volatilization ammonification and hydrogen sulfide.Reaction product also has the amino-benzene propane class of oligopolymer.
The technical problem that will solve required for the present invention can be achieved through the following technical solutions:
A kind of method with preparing water soluble quick-acting organic fertilizer from activated sludge comprises the following steps:
(1) take organic nitrogen compound as main active sludge and organic carbon compound as main organic solid castoff after the solid ammonia process chemical catalysis hydrolysis of chemical catalysis hydrolysis, solid ammonia, produced water miscible polymer carbohydrate, organic acid, amino acids, aminosaccharide, amino-benzene propane class;
The processing parameter of the chemical catalysis hydrolysis of manufacture solid fertilizer is open in other patent.With published patent difference be that primary product is water soluble organic substance, be different from publication, the aqueous solution produced because of steam heating in reaction in tank, first, after dehydration in tank, also will dehydrate outside tank, primary product is water-insoluble solid substance.
Organic carbon compound described in step (1) is feces of livestock and poultry, plant hydrolyzed slag, industrial fermentation waste residue and farm crop tangerine bar; Described plant hydrolyzed cinder ladle is drawn together sugar alcohol slag, Klinit dregs.
The described active sludge of step (1) and fowl and animal excrement mixing ratio are by 1 of dry basis (dry basis refers to the weight sum of active sludge and organic carbon compound): 0.5-4; Active sludge with the sorting after the domestic refuse organism partly coordinate, ratio is pressed 1 of dry basis: 0.3-2; Active sludge coordinates with farm crop tangerine bar, is 1 of dry basis: 0.5-3; Active sludge coordinates with plant hydrolyzed slag, is 1 of dry basis: 0.5-5; Active sludge and industrial fermentation waste residue mixing ratio are pressed 1 of dry basis: 0.5-5.
The hydrolysis of step (1) chemical catalysis, solid ammonia react are that the control solid-to-liquid ratio is 1 in tank: 2-10, and pH is controlled at 1-4, and temperature is controlled at 105 ℃-250 ℃, and pressure is 0.1Mpa-2.0Mpa, and the reaction times is 1 hour-10 hours.
Step (1) catalyzer is iron system or manganese sub-group compound, and dosage is counted the thousandth to thousand of organism dry basis/five with ferric ion or divalent manganesetion.
(2) after the solid ammonia of hydrolysis completes, carry out solid-liquid separation, be separated into solid part and filtrate;
A kind of with in plate-and-frame filter press, belt filter press, vacuum suction filter, separating centrifuge of step (2) solid-liquid separation, this is known public technology.
(3) after solid-liquid separation, solid part returns to hydrolytic decomposition pot and continues hydrolysis, circular treatment; Filtrate is first crossed and is filtered to remove suspended substance by the method for coarse filtration;
Step (3) filtrate is adopted the coarse filtration method, and sand filtration, cellucotton filter, bag type filtering, millipore filtration are arranged, and is used in conjunction with wherein a kind of or two kinds.
(4) through the filtrate of coarse filtration, pass through again membrane separation concentration; The first removal heavy metal (open in other patent) of ultrafiltration membrane permeate liquid, then advance reverse osmosis membrane;
Step (4) adopts ultra-filtration membrane to separate through the filtrate of coarse filtration and reverse osmosis membrane separation is in series;
The molecular weight that step (4) ultra-filtration membrane separates the fenestra cross section is 3000-20000 dalton, and membrane operations pressure is 0.1Mpa-0.6Mpa, and service temperature is 20 ℃-80 ℃, and the film transit dose is controlled at 1 l/m
2-6l/m
2.
The working pressure of step (4) reverse osmosis membrane separation is 0.3Mpa-1.0Mpa, and service temperature is 20 ℃-80 ℃, and the film transit dose is controlled at 2l/m
2-5l/m
2, the water that sees through of reverse osmosis membrane separation is that pure water is recycled.
(5) vacuum evaporation; The concentrated solution of ultra-filtration membrane and reverse osmosis membrane mixes that to add the adjusting PH with base value be after 5.5-7.5, to carry out triple effect vacuum evaporation machine;
Described vacuum evaporation, adopt triple effect evaporation, and an effect temperature is that 80 ℃, two effect temperature are 70 ℃, and the triple effect temperature is 60 ℃, and the heat exchanger of heat source temperature is 150 ℃-250 ℃, and vacuum degree control is at negative pressure 0.1-0.6Mpa.
Step (5) tail end steam water after condensation reclaims.
Containing water-soluble solid after step (5) vacuum evaporation, concentration is 30%-80%.
(6) the thick thing of the mobility after vacuum evaporation adopts the further drying and dehydrating of drying machine; After drying and dehydrating, make water miscible organic solid fertilizer;
The described drying machine of step (6) adopts Rotatingandflashstreamingdrier, Pipebundledrier, spray-drier, impact flow drying machine, the multilayer rotary-kiln dryer, with a kind of or two kinds of series connection wherein, water content after drying and dehydrating is controlled at 5%-20%, contains N+P through the computer batching
2O
5+ K
2O is 10%, and Water Soluble Organic Carbon 30%-45% water content is 5%-20%, metering packing the water soluble organic fertilizer finished product.
The present invention has broken traditional mindset by long-term compost fermentation production fertilizer.By new method, chemical catalysis is hydrolyzed solid ammonia process, makes active sludge and feces of livestock and poultry, plant hydrolyzed slag (comprising sugar alcohol slag, Klinit dregs), industrial fermentation waste residue and farm crop tangerine bar etc. through chemical catalysis hydrolysis, solid ammonia, produced water miscible polymer carbohydrate, organic acid, amino acids, aminosaccharide, amino-benzene propane class, last solid-liquid separation, concentrated, drying and dehydrating are made water miscible organic solid fertilizer.It can not only make base manure, can also do and topdress, and can use merely, can coordinate with chemical fertilizer again, and mixing is used.Can do that solid fertilizer carries out row replacement, face is executed, spreaded manuer in holes.After also can be water-soluble, do foliage fertilizer and punching fertilising.Owing to being the small molecules good water solubility, in not only having, long-acting, but also having immediate effect property.Due to effective, amount of application is few, and added value is high, to field crop with high-concentration fertilizer Chemical Mixed Fertilizer (N+P
2O
5+ K
2O>=more than 45%) be used in conjunction with the high-concentration fertilizer Chemical Mixed Fertilizer that the weight such as energy substitutes 50%-70%.If be applied in merely on green house of vegetables, cash crop, each amount of application is 70 kilograms-150 kilograms, N+P
2O
5+ K
20 content is in 10% left and right, and Water Soluble Organic Carbon is in the 30%-45% left and right.Than the custom chemical fertilizer, waiting in the input situation, increase production 5%-15%.Significantly improve quality of agricultural product, mouthfeel is good, can also improve soil, overcomes and uses merely the Soil degradation phenomenon that chemical fertilizer causes for a long time.
Beneficial effect of the present invention:
1, product of the present invention is water soluble quick-acting organic fertilizer, with short production cycle, and the production whole process only needs 6 hours.
2, in production process, do not arrange greenhouse gases, do not have stench and peculiar smell to produce, only have the fragrance of coffee, soy sauce, not waste discharge gurry, pollution-free to surrounding environment, discharge equals zero.
3, producing the chemical nitrogen fertilizer energy cost is 70% left and right of total cost.Energy cost of the present invention is 30% left and right of full cost, and this fertilizer, with the chemical fertilizer compounding application, can reduce fertilizer amount 50%-70%.On vegetables, fruit tree, cash crop, also can use merely.
In sum, produce water soluble quick-acting organic fertilizer energy replacing fertilizer, 6 hours production cycles, save the energy 40%, production process is not arranged greenhouse gases.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.
Fig. 1 is process flow sheet of the present invention.
Embodiment
In order to make technique means of the present invention, creation characteristic, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Active sludge be take cow dung with feces of livestock and poultry and is example.Technical process by reference to the accompanying drawings, as shown in Figure 1, active sludge be take cow dung with feces of livestock and poultry and is 1: 1 in the dry basis ratio, presses heavy metal of activated sludge content if surpassed state-set standard, can strengthen the cow dung ratio.After mixing and stirring, the solid ammonia tank of theory of evolution catalytic hydrolysis is processed, and solid-to-liquid ratio is 1: 8, and the pH value is controlled at 3.The catalytic hydrolysis temperature is 180 ℃.Pressure is 1.0Mpa, and the reaction times is 2 hours.Catalyzer is the Complexing Iron of iron series, and the catalyzer dosage is the thousandth of organic materials (active sludge+cow dung) dry basis.
After the solid ammonia of hydrolysis, enter equipment for separating liquid from solid, use plate-and-frame filter press, working pressure is 0.6Mpa, and time of filter pressing is 1 hour, and temperature is 100 ℃, and cake moisture is 49%, and filter cake returns to hydrolytic decomposition pot and again is hydrolyzed after fragmentation.
Filtrate, through coarse filter, is selected the bag type filtering machine with automatic backwash, and filtering velocity is 5m/ hour.Filter residue returns to hydrolytic decomposition pot and again is hydrolyzed, and filtrate containing water-soluble solid substance is 5%.
Enter the ultra-filtration membrane separating machine, fenestra cross section molecular weight is 3000 dalton.Membrane operations pressure 0.3Mpa, temperature is 60 ℃, permeate such as heavy metals exceeding standard, if in batching, do not solved, also can be after seeing through the liquid removal heavy metal, then after the bag type filtering machine filter and remove suspended substances, advancing reverse osmosis membrane separation machine vacuum operating pressure is 0.6mpa, and service temperature is 60 ℃.The film transit dose is controlled at 3l/m
2.
The ultra-filtration membrane concentrated solution enters falling film type triple effect vacuum-evaporator after with the reverse osmosis membrane concentrated solution, mixing, one the effect vaporization temperature be 80 ℃, two the effect vaporization temperatures be 70 ℃, the triple effect evaporation temperature is 60 ℃, and vacuum tightness is 0.5Mpa by negative pressure, and evaporation vapour water of condensation is recycled.
Enriched material is the poor thick thick liquid material of mobility, and solid content is 60%, neutralizes neutrality after pH6.5 with alkali.Through Rotatingandflashstreamingdrier, dehydrate, heat source temperature is 200 ℃, and temperature out is 80 ℃.Whirler motor revolution is 2900 to turn, and is 2000 to turn with speed control by frequency variation.Add chemical nitrogen fertilizer, phosphoric acid, potash fertilizer and be transferred to N+P
2O
5+ K
2The O total nutrient is more than or equal to 10%, and Water Soluble Organic Carbon (in carbon) is more than or equal to 40%.The metering packing finished product of finally take is water soluble organic fertilizer.
Embodiment 2
With active sludge with the sorting after the domestic refuse organism partly coordinate, ratio is pressed 1: 2 of dry basis; The solid ammonia tank of theory of evolution catalytic hydrolysis is processed, and solid-to-liquid ratio is 1: 8, and the pH value is controlled at 4.The catalytic hydrolysis temperature is 250 ℃.Pressure is 1.0Mpa, and the reaction times is 10 hours.Catalyzer is the manganese oxide of manganese series, and the catalyzer dosage is 5/1000ths of organic materials (active sludge+cow dung) dry basis.
After the solid ammonia of hydrolysis, enter equipment for separating liquid from solid, use plate-and-frame filter press, working pressure is 2.0Mpa, and time of filter pressing is 2 hours, and temperature is 100 ℃, and cake moisture is 49%, and filter cake returns to hydrolytic decomposition pot and again is hydrolyzed after fragmentation.
Filtrate, through coarse filter, is first used sand filtration, then to select the bag type filtering machine with automatic backwash, filtering velocity be 5m/ hour.Filter residue returns to hydrolytic decomposition pot and again is hydrolyzed, and filtrate containing water-soluble solid substance is 5%.
Enter the ultra-filtration membrane separating machine, fenestra cross section molecular weight is 20000 dalton.Membrane operations pressure 0.30.Mpa, temperature is 60 ℃, permeate such as heavy metals exceeding standard, if in batching, do not solved, also can be after seeing through the liquid removal heavy metal, then after the bag type filtering machine filter and remove suspended substances, advancing reverse osmosis membrane separation machine vacuum operating pressure is 0.6mpa, and service temperature is 60 ℃.The film transit dose is controlled at 3l/m
2.
The ultra-filtration membrane concentrated solution enters falling film type triple effect vacuum-evaporator after with the reverse osmosis membrane concentrated solution, mixing, one the effect vaporization temperature be 80 ℃, two the effect vaporization temperatures be 70 ℃, the triple effect evaporation temperature is 60 ℃, and vacuum tightness is 0.5Mpa by negative pressure, and evaporation vapour water of condensation is recycled.
Enriched material is the poor thick thick liquid material of mobility, and solid content is 60%, neutralizes neutrality after pH6.5 with alkali.Through Pipebundledrier, dehydrate, heat source temperature is 200 ℃, and temperature out is 80 ℃.Bundled tube motor revolution is 2500 to turn, and is 2000 to turn with speed control by frequency variation.Add chemical nitrogen fertilizer, phosphoric acid, potash fertilizer and be transferred to N+P
2O
5+ K
2The O total nutrient is more than or equal to 10%, and Water Soluble Organic Carbon (in carbon) is more than or equal to 45%.The metering packing finished product of finally take is water soluble organic fertilizer.
Embodiment 3
Active sludge coordinates with farm crop tangerine bar, is 1: 2.5 of dry basis; The solid ammonia tank of theory of evolution catalytic hydrolysis is processed, and solid-to-liquid ratio is 1: 8, and the pH value is controlled at 4.The catalytic hydrolysis temperature is 250 ℃.Pressure is 1.0Mpa, and the reaction times is 10 hours.Catalyzer is the manganese oxide of manganese series, and the catalyzer dosage is the thousandth of organic materials (active sludge+cow dung) dry basis.
After the solid ammonia of hydrolysis, enter equipment for separating liquid from solid, use plate-and-frame filter press, working pressure is 2.0Mpa, and time of filter pressing is 2 hours, and temperature is 100 ℃, and cake moisture is 49%, and filter cake returns to hydrolytic decomposition pot and again is hydrolyzed after fragmentation.
Filtrate is through coarse filter, and first with the cellucotton filter, then to select the bag type filtering machine with automatic backwash, filtering velocity be 5m/ hour.Filter residue returns to hydrolytic decomposition pot and again is hydrolyzed, and filtrate containing water-soluble solid substance is 5%.
Enter the ultra-filtration membrane separating machine, fenestra cross section molecular weight is 20000 dalton.Membrane operations pressure 0.30.Mpa, temperature is 60 ℃, permeate such as heavy metals exceeding standard, if in batching, do not solved, also can be after seeing through the liquid removal heavy metal, then after the bag type filtering machine filter and remove suspended substances, advancing reverse osmosis membrane separation machine vacuum operating pressure is 0.6mpa, and service temperature is 60 ℃.The film transit dose is controlled at 3l/m
2.
The ultra-filtration membrane concentrated solution enters falling film type triple effect vacuum-evaporator after with the reverse osmosis membrane concentrated solution, mixing, one the effect vaporization temperature be 80 ℃, two the effect vaporization temperatures be 70 ℃, the triple effect evaporation temperature is 60 ℃, and vacuum tightness is 0.5Mpa by negative pressure, and evaporation vapour water of condensation is recycled.
Enriched material is the poor thick thick liquid material of mobility, and solid content is 60%, neutralizes neutrality after pH6.5 with alkali.Spray-dried machine dehydrates, and heat source temperature is 200 ℃, and temperature out is 80 ℃.The motor revolution is 2500 to turn.Add chemical nitrogen fertilizer, phosphoric acid, potash fertilizer and be transferred to N+P
2O
5+ K
2The O total nutrient is more than or equal to 10%, and Water Soluble Organic Carbon (in carbon) is more than or equal to 30%.The metering packing finished product of finally take is water soluble organic fertilizer.
Embodiment 4
Active sludge coordinates with alditol slag xylitol slag, is 1: 4 of dry basis; All the other are with embodiment 1.Add chemical nitrogen fertilizer, phosphoric acid, potash fertilizer and be transferred to N+P
2O
5+ K
2The O total nutrient is more than or equal to 10%, and Water Soluble Organic Carbon (in carbon) is more than or equal to 35%.The metering packing finished product of finally take is water soluble organic fertilizer.
Embodiment 5
Active sludge and industrial fermentation waste residue mixing ratio are pressed 1: 0.5 of dry basis.All the other are with embodiment 2.Add chemical nitrogen fertilizer, phosphoric acid, potash fertilizer and be transferred to N+P
2O
5+ K
2The O total nutrient is more than or equal to 10%, and Water Soluble Organic Carbon (in carbon) is more than or equal to 42%.The metering packing finished product of finally take is water soluble organic fertilizer.
Above demonstration and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (14)
1. the method with preparing water soluble quick-acting organic fertilizer from activated sludge, is characterized in that, comprises the following steps:
(1) take organic nitrogen compound as main active sludge and organic carbon compound as main organic solid castoff through the solid ammonia process chemical catalysis hydrolysis of chemical catalysis hydrolysis, solid ammonia, produced water miscible polymer carbohydrate, organic acid, amino acids, aminosaccharide, amino-benzene propane class; The hydrolysis of step (1) chemical catalysis, solid ammonia react are that the control solid-to-liquid ratio is 1:2-10 in tank, and pH is controlled at 1-4, and temperature is controlled at 105 ℃-250 ℃, and pressure is 0.1MPa-2.0MPa, and the reaction times is 1 hour-10 hours; Step (1) catalyzer is iron system or manganese sub-group compound, and dosage is counted the thousandth to thousand of organism dry basis/five with ferric ion or divalent manganesetion;
(2) after the solid ammonia of step (1) hydrolysis completes, carry out solid-liquid separation, be separated into solid part and filtrate;
(3) after step (2) solid-liquid separation, solid part returns to hydrolytic decomposition pot and continues hydrolysis, circular treatment; Filtrate is first crossed and is filtered to remove suspended substance by the method for coarse filtration;
(4) through the filtrate of coarse filtration, pass through again membrane separation concentration; The first removal heavy metal of ultrafiltration membrane permeate liquid, then advance reverse osmosis membrane;
(5) vacuum evaporation; The concentrated solution of ultra-filtration membrane and reverse osmosis membrane mixes that to add the adjusting PH with base value be to enter triple effect vacuum evaporation machine after 5.5-7.5;
(6) the thick thing of the mobility after vacuum evaporation adopts the further drying and dehydrating of drying machine; After drying and dehydrating, make water miscible organic solid fertilizer.
2. method according to claim 1 is characterized in that: organic carbon compound described in step (1) is that main organic solid castoff is feces of livestock and poultry, plant hydrolyzed slag, industrial fermentation waste residue or farm crop tangerine bar.
3. method according to claim 2, it is characterized in that: described plant hydrolyzed cinder ladle is drawn together alditol slag, Klinit dregs.
4. method according to claim 2, it is characterized in that: described active sludge and fowl and animal excrement mixing ratio are pressed the 1:0.5-4 of dry basis.
5. method according to claim 1, it is characterized in that: organic carbon compound described in step (1) is that main organic solid castoff is the domestic refuse organism part after sorting, and the domestic refuse organism part mixing ratio after active sludge and sorting is pressed the 1:0.3-2 of dry basis.
6. method according to claim 2, it is characterized in that: active sludge and farm crop tangerine bar mixing ratio are pressed the 1:0.5-3 of dry basis.
7. method according to claim 2, it is characterized in that: active sludge and plant hydrolyzed slag mixing ratio are pressed the 1:0.5-5 of dry basis.
8. method according to claim 2, it is characterized in that: active sludge and industrial fermentation waste residue mixing ratio are pressed the 1:0.5-5 of dry basis.
9. method according to claim 1 is characterized in that: step (4) adopts ultra-filtration membrane to separate through the filtrate of coarse filtration and reverse osmosis membrane separation is in series.
10. method according to claim 9, it is characterized in that: the molecular weight that step (4) ultra-filtration membrane separates the fenestra cross section is 3000-20000 dalton, membrane operations pressure is 0.1MPa-0.6MPa, and service temperature is 20 ℃-80 ℃, and the film transit dose is controlled at 1L/ ㎡-6L/ ㎡.
11. method according to claim 9, it is characterized in that: the working pressure of step (4) reverse osmosis membrane separation is 0.3MPa-1.0MPa, service temperature is 20 ℃-80 ℃, and the film transit dose is controlled at 2L/ ㎡-5L/ ㎡, and the water that sees through of reverse osmosis membrane separation is that pure water is recycled.
12. method according to claim 1 is characterized in that: the described vacuum evaporation of step (5), adopt triple effect evaporation, one the effect temperature be 80 ℃, two the effect temperature be 70 ℃, the triple effect temperature is 60 ℃, and the heat exchanger of heat source temperature is 150 ℃-250 ℃, and vacuum degree control is at negative pressure 0.1MPa.
13. method according to claim 1 is characterized in that: containing water-soluble solid after step (5) vacuum evaporation, concentration is 30%-80%.
14. method according to claim 1 is characterized in that: the water content after step (6) drying and dehydrating is controlled at 5%-20%, contains N+P through the computer batching
2O
5+ K
2O is 10%, Water Soluble Organic Carbon 30%-45%, water content is 5%-20%, metering packing the water soluble organic fertilizer finished product.
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| CN102649647B (en) * | 2011-02-23 | 2013-10-30 | 吉林师范大学 | Method for rapid composting by combining sludge of different types |
| CN102515883B (en) * | 2011-12-22 | 2013-06-19 | 山东轻工业学院 | Method for preparing slow-release compound fertilizer with xylose waste residues |
| CN102674960B (en) * | 2012-05-06 | 2014-01-15 | 冷登书 | Liquid fertilizer utilizing city life garbage landfill leachate and preparation method thereof |
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| CN106588136A (en) * | 2016-12-19 | 2017-04-26 | 宁波宝力农环境技术开发有限公司 | Complete equipment producing organic water-soluble fertilizer by means of livestock excrement and urine water |
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| CN112876324A (en) * | 2021-01-29 | 2021-06-01 | 南京灿友嘉环境科技有限公司 | High-speed active fertilizer-making process water solution resource treatment method |
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