CN105368507A - Kitchen waste treatment method - Google Patents
Kitchen waste treatment method Download PDFInfo
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- CN105368507A CN105368507A CN201510650092.2A CN201510650092A CN105368507A CN 105368507 A CN105368507 A CN 105368507A CN 201510650092 A CN201510650092 A CN 201510650092A CN 105368507 A CN105368507 A CN 105368507A
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- waste treatment
- food waste
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- 238000000034 method Methods 0.000 title claims abstract description 77
- 239000010806 kitchen waste Substances 0.000 title abstract 6
- 239000000203 mixture Substances 0.000 claims abstract description 47
- 241000894006 Bacteria Species 0.000 claims abstract description 41
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000000855 fermentation Methods 0.000 claims abstract description 29
- 230000004151 fermentation Effects 0.000 claims abstract description 29
- 239000000706 filtrate Substances 0.000 claims abstract description 24
- 239000011259 mixed solution Substances 0.000 claims abstract description 23
- 235000014655 lactic acid Nutrition 0.000 claims abstract description 19
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 241000233866 Fungi Species 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 65
- 239000002551 biofuel Substances 0.000 claims description 27
- 235000010855 food raising agent Nutrition 0.000 claims description 26
- 239000010794 food waste Substances 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 25
- 238000009423 ventilation Methods 0.000 claims description 22
- 241000159512 Geotrichum Species 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 15
- 239000002689 soil Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 9
- 239000011591 potassium Substances 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- 235000010755 mineral Nutrition 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 3
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 2
- 235000011151 potassium sulphates Nutrition 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 229940001516 sodium nitrate Drugs 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 5
- 239000004310 lactic acid Substances 0.000 abstract description 3
- 241000228245 Aspergillus niger Species 0.000 abstract 1
- 239000003225 biodiesel Substances 0.000 abstract 1
- 239000004067 bulking agent Substances 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 description 24
- 239000003921 oil Substances 0.000 description 22
- 239000000047 product Substances 0.000 description 13
- 238000000354 decomposition reaction Methods 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 9
- 239000004519 grease Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000001580 bacterial effect Effects 0.000 description 6
- 241000453701 Galactomyces candidum Species 0.000 description 5
- 235000017388 Geotrichum candidum Nutrition 0.000 description 5
- 150000001720 carbohydrates Chemical class 0.000 description 5
- 235000014633 carbohydrates Nutrition 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 108090001060 Lipase Proteins 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 102000004882 Lipase Human genes 0.000 description 3
- 239000004367 Lipase Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 235000019421 lipase Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 241000361919 Metaphire sieboldi Species 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- LPQOADBMXVRBNX-UHFFFAOYSA-N ac1ldcw0 Chemical compound Cl.C1CN(C)CCN1C1=C(F)C=C2C(=O)C(C(O)=O)=CN3CCSC1=C32 LPQOADBMXVRBNX-UHFFFAOYSA-N 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 230000000433 anti-nutritional effect Effects 0.000 description 2
- 150000002016 disaccharides Chemical class 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 238000005360 mashing Methods 0.000 description 2
- 239000002207 metabolite Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
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- 239000008107 starch Substances 0.000 description 2
- 238000002525 ultrasonication Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
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- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 150000003722 vitamin derivatives Chemical class 0.000 description 2
- MEIRRNXMZYDVDW-MQQKCMAXSA-N (2E,4E)-2,4-hexadien-1-ol Chemical compound C\C=C\C=C\CO MEIRRNXMZYDVDW-MQQKCMAXSA-N 0.000 description 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 241000235648 Pichia Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- WQZGKKKJIJFFOK-PQMKYFCFSA-N alpha-D-mannose Chemical compound OC[C@H]1O[C@H](O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-PQMKYFCFSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010367 cloning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000034659 glycolysis Effects 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005706 microflora Species 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 239000002699 waste material Substances 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Landscapes
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kitchen waste treatment method. The problems that an existing kitchen waste treatment method is excessively long in fermentation time and fiber cannot be decomposed are mainly solved. The kitchen waste treatment method comprises the following steps that kitchen waste is filtered into residues and a filtrate, the filtrate is manufactured into biodiesel, and the residues are reserved for use; the residues are smashed to the specification being 30 mm or less, the pH is adjusted to be 5.5-6.5, and then 7-15% of a bulking agent is added for uniform mixing so that the water content can reach 48-62%; then, the mixture and a multi-bacterium mixed solution are mixed uniformly on the basis that the weight ratio is 88:8-12; the multi-bacterium mixed solution comprises down mold, lactic acid bacteria, white rot fungi and aspergillus niger; the soluble salt containing N, P and K is added as needed. According to the kitchen waste treatment method, the purposes of shortening the fermentation time and decomposing fiber in the residues are achieved, and the high practical value and the popularization value are achieved.
Description
Technical field
The present invention relates to food waste process field, specifically, relate to a kind of food waste treatment process.
Background technology
Food waste is mainly derived from the rubbish of serving the meals that the machine-operated enterprises and institutions diet such as family, hotel, restaurant, school stay, and is the waste produced in people's personal consumption process; Along with the raising of people's living standard and the increase day by day of population in the world quantity, the output of food waste increases thereupon; The domestic waste that the present world produces every year is about 50,000,000,000 tons; Food waste proportion is 10%-20%; Food waste owing to easily fermenting, going bad, rot, and produce a large amount of toxin, distribute niff, can contaminated land, air, water body during accumulation; Therefore the resource utilization of food waste, harmless treatment becomes more and more important.
The defect that the method for existing process food waste exists has: the first, and fermentation time at least needs 4 days, and fermentation time is long; The second, the fibre product in food waste, as paper, hygienic chopsticks etc. can not effectively be decomposed, its bio-feritlizer fertilizer efficiency made is low, can not effectively be promoted the use of; 3rd, the residue having a lot of suspension tiny in food waste in liquid, effectively can not be separated, be not easy to the process follow-up to liquid, the product causing liquid subsequent disposal to obtain is not up to standard.
Food waste is after solid-liquid separation, still containing amount of grease in solid phase, grease can not be used directly as fertilizer, grease can be resolved into glycerine and fatty acid mono by lipase, then the collaborative catalytic decomposition oil substances that plays a role generates carbohydrate with other enzyme, provides seed to root necessary nutriment and energy.Geotrichum candidum is the faint fermentation of energy on glucose, seminose, fructose; Glycerine, ethanol, sorbyl alcohol and N.F,USP MANNITOL can be assimilated during aerobic; Energy decompose pectin and grease simultaneously; Can the multiple organic nitrogen source of assimilation and urea.
It can thus be appreciated that, the grease in geotrichum candidum decomposition solid waste can be utilized, but the efficiency that existing geotrichum candidum cuts grease is lower, usually adopts engineered method to obtain the bacterial strain that can produce a large amount of geotrichum candidum lipase.Such as in " microorganism journal ", disclose in document " 73 geotrichum candidum Y162 cloning lipase gene and the high expression in pichia spp thereof " and adopt engineered method to obtain the method for superior strain.But the enzymatic productivity of bacterial strain not only has relation with bacterial strain, also there is very large association with residing growing environment.Lipase belongs to microbial metabolites, and the meta-bolites of microorganism or metabolic efficiency all may change under various circumstances.
Summary of the invention
The problem to be solved in the present invention is that existing food waste treatment process fermentation time is long, can not decompose fibre product wherein, has a lot of tiny residue suspended effectively not to be separated, be not easy to the subsequent disposal of liquid in its liquid; The capacity of decomposition to lipoid material can be improved simultaneously, reduce the lipoid material content in solid refuse
In order to solve the problem, the invention provides following technical scheme:
Food waste treatment process comprises the following steps:
A food waste filters and is divided into residue and liquid by (), liquid makes biofuel, and residue is for subsequent use;
B residue is crushed to below 30mm by () after, regulate pH to 5.5-6.5, the raising agent then adding 7-15% mixes, and makes its water content reach 48%-62%; Raising agent, for increasing the gap between residue, absorbs excessive moisture;
C the mixture of step (b) and many bacterium mixed solution mix by weight 88:8-12 by (); Many bacterium mixed solution comprises Geotrichum 1,000,000 cfu/ml-500 ten thousand cfu/ml, milk-acid bacteria 1,000,000 cfu/ml-500 ten thousand cfu/ml, whiterot fungi 1,000,000 cfu/ml-500 ten thousand cfu/ml, black-koji mould 1,000,000 cfu/ml-500 ten thousand cfu/ml, and corresponding weight ratio is 1:1:1:1;
D () is 40-55 DEG C in temperature, ventilation condition bottom fermentation 42-50 hour; Ventilation 4-8L/min;
E the mixture of step (d) and additive mix by weight 98:1-2 by (), make bio-feritlizer; Additive is any one in the soluble salt containing N, P, K.
Particularly, the soluble salt containing N is any one in SODIUMNITRATE, nitrocalcite, ammonium nitrate; Soluble salt containing K is any one in Repone K, potassium sulfate, potassium primary phosphate, sylvite; Soluble salt containing P is calcium superphosphate.
Particularly, raising agent is the mixture of excrement, sawdust, sandy soil, and corresponding weight ratio is 30-40:5-10:50-65; Excrement is preferably horsehit, and excrement is used for not only for increasing the gap in residue between material, also for increasing the fertilizer efficiency of final obtained bio-fertilizer; Sawdust and sandy soil are for increasing the gap in residue between material.
Particularly, in step (a) liquid to make the specific implementation process of biofuel as follows:
(a1) pulverized by suspended substance in liquid, after making pulverizing, the particle diameter of suspended substance is 10-50um;
(a2) in step (a1), add the absorption mineral compared for 80:5-20 with liquid weight and adsorb the suspended substance after pulverizing; After 20-50h, after filtration, obtain filtrate;
(a3) filtrate evaporation obtains oil after dewatering;
(a4) oil is converted to biofuel by the technique of alkaline process production biofuel.
More specifically, adsorbing mineral is any one in polynite, medical stone, zeolite.
More specifically, the mode pulverizing suspended substance in liquid is microwave or ultrasonic.
More specifically, the particle diameter of polynite, medical stone, zeolite is equal 50 ~ 60 orders; Particle diameter is equal 50 ~ 60 order polynites, medical stone, zeolite have very strong adsorptive power, excessive or too small that particle diameter all can reduce the adsorptive power of adsorbing mineral.
Compared with prior art, the present invention has following beneficial effect:
(1) in the present invention, Geotrichum is a kind of microorganism of the very slightly raw dirty candiyeast of the similar product of nutritive value, ramp on the residue that can enrich at carbohydrate, its cell rich in proteins, fat, VITAMIN and nucleic acid, namely itself have good fertilizer efficiency; Milk-acid bacteria and black-koji mould, black-koji mould has very strong mashing ability, the Mierocrystalline cellulose in residue and starch substance can be converted into the monose or disaccharide that are absorbed by Geotrichum and milk-acid bacteria; The carbohydrate such as the sugar in milk-acid bacteria energy residue decomposition form lactic acid, cause lactic fermentation, produce a series of enzyme system, the Mierocrystalline cellulose in residue, hemicellulose and antinutritional factor are carried out biological decomposition; Fibre product in whiterot fungi energy residue decomposition, as toilet paper, hygienic chopsticks etc.; Four bacterium one are used from fermentation, play complementary action between bacterial classification, shorten fermentation time, improve the fertilizer efficiency of products therefrom.
(2) in the present invention, excrement is used for not only for increasing the gap in residue between material, also for increasing the fertilizer efficiency of final obtained bio-fertilizer; Sawdust and sandy soil are for increasing the gap in residue between material; The raising agent of mixing is adopted to decrease the time of residue decomposition; The soluble salt added as required containing N, P, K makes the fertilizer to drink, makes its fertilizer efficiency reach requirement, avoids the situation that bio-feritlizer fertilizer efficiency is low.
(3) the present invention is by the suspended substance in microwave or ultrasonication liquid, absorbs, be convenient to the following process of liquid, improve the quality of liquid following process product with the suspended substance that absorption mineral are pulverized.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment 1
The treatment process of food waste comprises the treatment process of residue and the treatment process of liquid.
Filtered by food waste and be divided into residue and liquid, liquid makes biofuel, and residue makes bio-feritlizer.
The treatment process of residue is: after 100kg residue is crushed to 15mm, and the pH regulating mixture is 5.5 to it, then adds 7kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 48%; Then add many bacterium mixed solution of 9.73kg, many bacterium mixed solution mixes obtained by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml milk-acid bacterias, 3,000,000 cfu/ml whiterot fungis, 3,000,000 cfu/ml black-koji moulds; Be 40 DEG C in temperature, ventilation condition bottom fermentation 42h, ventilation is 4L/min; Add 1.19kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 2.8kg excrement, 0.7kg sawdust, 3.5kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 10um; And then in liquid, add 6.25kg polynite; The particle diameter of polynite is 50 orders; Filter after 20h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 2
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 5.6 to it, then adds 8kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 50%; Then add many bacterium mixed solution of 11.05kg, many bacterium mixed solution mixes obtained by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml milk-acid bacterias, 3,000,000 cfu/ml whiterot fungis, 3,000,000 cfu/ml black-koji moulds; Be 45 DEG C in temperature, ventilation condition bottom fermentation 44h, ventilation is 5L/min; Add 1.46kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 2.64kg excrement, 0.48kg sawdust, 4.88kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 20um; And then in liquid, add 12.5kg polynite; The particle diameter of polynite is 53 orders; Filter after 25h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 3
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 6 to it, then adds 10kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 55%; Then add many bacterium mixed solution of 12.5kg, many bacterium mixed solution mixes obtained by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml milk-acid bacterias, 3,000,000 cfu/ml whiterot fungis, 3,000,000 cfu/ml black-koji moulds; Be 47 DEG C in temperature, ventilation condition bottom fermentation 46h, ventilation is 6L/min; Add 1.88kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 3kg excrement, 1.5kg sawdust, 5.5kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 30um; And then in liquid, add 16.25kg polynite; The particle diameter of polynite is 55 orders; Filter after 35h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 4
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 6.2 to it, then adds 12kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 52%; Then add many bacterium mixed solution of 14kg, many bacterium mixed solution mixes obtained by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml milk-acid bacterias, 3,000,000 cfu/ml whiterot fungis, 3,000,000 cfu/ml black-koji moulds; Be 50 DEG C in temperature, ventilation condition bottom fermentation 48h, ventilation is 7L/min; Add 2.31kg ammonium nitrate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 4.56kg excrement, 1.08kg sawdust, 6.36kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 40um; And then in liquid, add 22.5kg polynite; The particle diameter of polynite is 58 orders; Filter after 40h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 5
The treatment process of residue is: after 100kg residue is crushed to 30mm, and the pH regulating mixture is 6.5 to it, then adds 15kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 62%; Then add many bacterium mixed solution of 15.68kg, many bacterium mixed solution mixes obtained by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml milk-acid bacterias, 3,000,000 cfu/ml whiterot fungis, 3,000,000 cfu/ml black-koji moulds; Be 55 DEG C in temperature, ventilation condition bottom fermentation 50h, ventilation is 8L/min; Add 2.67kg Repone K and mix rear obtained bio-feritlizer.
Wherein, raising agent is 4.5kg excrement, 0.75kg sawdust, 9.75kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 50um; And then in liquid, add 25kg polynite; The particle diameter of polynite is 60 orders; Filter after 50h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
The fertilizer efficiency contrast experiment table of obtained bio-fertilizer:
In the present invention, Geotrichum is a kind of microorganism of the very slightly raw dirty candiyeast of the similar product of nutritive value, ramp on the residue that can enrich at carbohydrate, and its cell rich in proteins, fat, VITAMIN and nucleic acid, itself have higher fertilizer efficiency; Milk-acid bacteria and black-koji mould, black-koji mould has very strong mashing ability, the Mierocrystalline cellulose in residue and starch substance can be converted into the monose or disaccharide that are absorbed by Geotrichum and milk-acid bacteria; The carbohydrate such as the sugar in milk-acid bacteria energy residue decomposition form lactic acid, cause lactic fermentation, produce a series of enzyme system, the Mierocrystalline cellulose in residue, hemicellulose and antinutritional factor are carried out biological decomposition; Fibre product in whiterot fungi energy residue decomposition, as toilet paper, hygienic chopsticks etc.; Four bacterium one are used from fermentation, play complementary action between bacterial classification, shorten fermentation time, improve the fertilizer efficiency of products therefrom, make its fertilizer efficiency better; The soluble salt that finally can add as required containing N, P, K makes the fertilizer to drink, makes its fertilizer efficiency reach requirement, avoids the situation that bio-feritlizer fertilizer efficiency is low; Can find out that same weight residue is along with the increase adding raising agent and many bacterium mixed solution weight from fertilizer efficiency contrast experiment table, mushroom residue decomposition is more thorough, and final obtained bio-fertilizer fertilizer efficiency is better.
Geotrichum, milk-acid bacteria, black-koji mould, whiterot fungi four bacterium one are used from fermentation, play complementary action between bacterial classification, shorten fermentation time, improve the fertilizer efficiency of products therefrom; Also use dealing with earthworm rubbish in addition, further shorten fermentation time, and make residue react more thorough; The use of raising agent increases the gap in residue between material, and earthworm, Geotrichum, milk-acid bacteria, black-koji mould, whiterot fungi obtain enough oxygen, and what residue was decomposed is faster more thorough, and the product fertilizer efficiency obtained is better.
Reaction times and adsorb thorough rate contrast experiment table:
Suspended substance in microwave or ultrasonication liquid, absorbs with the suspended substance that absorption mineral are pulverized, is convenient to the following process of liquid, improves the quality of liquid following process product; Find out from liquid reactions time and reacting thorough rate contrast experiment table and progressively to reduce along with the suspended substance in liquid is pulverized, the reaction times reduces gradually, and the thorough rate of absorption is higher.
Embodiment 6
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 6 to it, then adds 10kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 55%; Then add many bacterium mixed solution of 12.5kg, it is obtained that many bacterium mixed solution mixes obtained mixing by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml milk-acid bacterias; Be 47 DEG C in temperature, ventilation condition bottom fermentation 46h, ventilation is 6L/min; Add 1.88kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 3kg excrement, 1.5kg sawdust, 5.5kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 30um; And then in liquid, add 16.25kg polynite; The particle diameter of polynite is 55 orders; Filter after 35h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 7
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 6 to it, then adds 10kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 55%; Then add many bacterium mixed solution of 12.5kg, it is obtained that many bacterium mixed solution mixes obtained mixing by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml whiterot fungis; Be 47 DEG C in temperature, ventilation condition bottom fermentation 46h, ventilation is 6L/min; Add 1.88kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 3kg excrement, 1.5kg sawdust, 5.5kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 30um; And then in liquid, add 16.25kg polynite; The particle diameter of polynite is 55 orders; Filter after 35h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 8
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 6 to it, then adds 10kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 55%; Then add many bacterium mixed solution of 12.5kg, it is obtained that many bacterium mixed solution mixes obtained mixing by 3,000,000 cfu/ml Geotrichums, 3,000,000 cfu/ml black-koji moulds; Be 47 DEG C in temperature, ventilation condition bottom fermentation 46h, ventilation is 6L/min; Add 1.88kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 3kg excrement, 1.5kg sawdust, 5.5kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 30um; And then in liquid, add 16.25kg polynite; The particle diameter of polynite is 55 orders; Filter after 35h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Embodiment 9
The treatment process of residue is: after 100kg residue is crushed to 20mm, and the pH regulating mixture is 6 to it, then adds 10kg raising agent and mixes; Measuring and adjusting makes the water content of mixture be 55%; Then 3,000,000 cfu/ml Geotrichums are added; Be 47 DEG C in temperature, ventilation condition bottom fermentation 46h, ventilation is 6L/min; Add 1.88kg potassium primary phosphate and mix rear obtained bio-feritlizer.
Wherein, raising agent is 3kg excrement, 1.5kg sawdust, 5.5kg sandy soil mix rear obtained.
The treatment process of liquid is: by 100kg liquid by ultrasonic disintegrator, make the suspended substance in liquid be crushed to 30um; And then in liquid, add 16.25kg polynite; The particle diameter of polynite is 55 orders; Filter after 35h and obtain filtrate; Obtain oil after filtrate being evaporated, convert oil to biofuel by the technique of alkaline process production biofuel.
Utilize acid-hydrolysis method to calculate fat content in solid refuse, concrete grammar is: sample at 10g, then adds 1:1HCL200 milliliter, 75 DEG C of water-bath 30min, then add 10 milliliters of dehydrated alcohols while hot, shake up cooling and add 25 milliliters of ether again and shake up venting and add 25 milliliters of sherwood oils again, shake up venting.Get 25 milliliters of ether layer water bath methods to weigh calculating.
The fat content utilizing aforesaid method to calculate before and after decomposing and fermenting in solid refuse changes; Wherein the content situation of embodiment 3 and embodiment 6 ~ embodiment 9 is as table 3
| Embodiment group | Fat content before fermentation | Fat content after fermentation |
| Embodiment 3 | 5.2％ | 1.5％ |
| Embodiment 6 | 5.2％ | 3.2％ |
| Embodiment 7 | 5.2％ | 3.4％ |
| Embodiment 8 | 5.2％ | 1.7％ |
| Embodiment 9 | 5.2％ | 3.7％ |
Interpretation of result
The fermentative microflora added relative to the process of embodiment 3 in embodiment 6 ~ embodiment 9 reduces, and is minimum with flora single in embodiment 9.As can be seen here, fermentation results in embodiment 8 is close with embodiment 3, does not possess significant difference, and both are close to grease glycolysis degree, and differ comparatively far away with all the other embodiments, illustrate that the black-koji mould added in embodiment 8 can effectively promote that Geotrichum cuts grease.
According to above-described embodiment, just the present invention can be realized well.What deserves to be explained is; under prerequisite based on said structure design, for solving same technical problem, even if some making on the invention are without substantial change or polishing; the essence of the technical scheme adopted is still the same with the present invention, therefore it also should in protection scope of the present invention.
Claims (7)
1. a food waste treatment process, is characterized in that, comprises the following steps:
A food waste filters and is divided into residue and liquid by (), liquid makes biofuel, and residue is for subsequent use;
B residue is crushed to below 30mm by () after, regulate pH to 5.5-6.5, the raising agent then adding 7-15% mixes, and makes its water content reach 48%-62%;
C the mixture of step (b) and many bacterium mixed solution mix by weight 88:8-12 by (); Many bacterium mixed solution comprises Geotrichum 1,000,000 cfu/ml-500 ten thousand cfu/ml, milk-acid bacteria 1,000,000 cfu/ml-500 ten thousand cfu/ml, whiterot fungi 1,000,000 cfu/ml-500 ten thousand cfu/ml, black-koji mould 1,000,000 cfu/ml-500 ten thousand cfu/ml, and corresponding weight ratio is 1:1:1:1;
D () is 40-55 DEG C in temperature, ventilation condition bottom fermentation 42-50 hour; Ventilation 4-8L/min;
E the mixture of step (d) and additive mix by weight 98:1-2 by (), make bio-feritlizer; Additive is any one in the soluble salt containing N, P, K.
2. food waste treatment process according to claim 1, is characterized in that, the soluble salt containing N is any one in SODIUMNITRATE, nitrocalcite, ammonium nitrate; Soluble salt containing K is any one in Repone K, potassium sulfate, potassium primary phosphate, sylvite; Soluble salt containing P is calcium superphosphate.
3. food waste treatment process according to claim 2, is characterized in that, raising agent is the mixture of excrement, sawdust, sandy soil, and corresponding weight ratio is 30-40:5-10:50-65.
4. the food waste treatment process according to any one of claim 1-3, is characterized in that, the specific implementation process that the middle liquid of step (a) makes biofuel is as follows:
(a1) pulverized by suspended substance in liquid, after making pulverizing, the particle diameter of suspended substance is 10-50um;
(a2) in step (a1), add the absorption mineral compared for 80:5-20 with liquid weight and adsorb the suspended substance after pulverizing; After 20-50h, after filtration, obtain filtrate;
(a3) filtrate evaporation obtains oil after dewatering;
(a4) oil is converted to biofuel by the technique of alkaline process production biofuel.
5. food waste treatment process according to claim 4, is characterized in that, absorption mineral are any one in polynite, medical stone, zeolite.
6. food waste treatment process according to claim 5, is characterized in that, the mode pulverizing suspended substance in liquid is microwave or ultrasonic.
7. food waste treatment process according to claim 6, is characterized in that, the particle diameter of polynite, medical stone, zeolite is equal 50 ~ 60 orders.
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| CN106830128A (en) * | 2017-03-17 | 2017-06-13 | 刘之敏 | Urban catering swill treatment composite bacteria agent |
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| CN109092859A (en) * | 2018-08-11 | 2018-12-28 | 浙江始祖鸟环境工程有限公司 | A kind of domestic rubbish disposal and the method for utilizing |
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| CN106720950A (en) * | 2016-12-13 | 2017-05-31 | 广州市通合塑料制品有限公司 | A kind of processing method of remaining meal rubbish |
| CN106830128A (en) * | 2017-03-17 | 2017-06-13 | 刘之敏 | Urban catering swill treatment composite bacteria agent |
| CN108745294A (en) * | 2018-06-01 | 2018-11-06 | 太原理工大学 | A kind of method that fungi-kitchen garbage mixing solid phase fermentation prepares heavy metal absorbent |
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| CN111533391B (en) * | 2020-05-21 | 2022-05-31 | 杭州泽灿环境科技有限公司 | Garbage filter pressing liquid treatment system and method |
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