CN111892699A - Apparatus and method for synthesizing polyhydroxyalkanoate - Google Patents
Apparatus and method for synthesizing polyhydroxyalkanoate Download PDFInfo
- Publication number
- CN111892699A CN111892699A CN202010887679.6A CN202010887679A CN111892699A CN 111892699 A CN111892699 A CN 111892699A CN 202010887679 A CN202010887679 A CN 202010887679A CN 111892699 A CN111892699 A CN 111892699A
- Authority
- CN
- China
- Prior art keywords
- pha
- oil
- synthesis
- anaerobic
- separation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 title claims abstract description 179
- 229920000903 polyhydroxyalkanoate Polymers 0.000 title claims abstract description 179
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 78
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 58
- 239000002253 acid Substances 0.000 claims abstract description 54
- 238000000605 extraction Methods 0.000 claims abstract description 52
- 239000010806 kitchen waste Substances 0.000 claims abstract description 41
- 238000000855 fermentation Methods 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 239000007788 liquid Substances 0.000 claims description 44
- 238000001914 filtration Methods 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 28
- 239000000047 product Substances 0.000 claims description 26
- 238000004537 pulping Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000004519 grease Substances 0.000 claims description 17
- 239000010802 sludge Substances 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 13
- 230000035484 reaction time Effects 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 238000000265 homogenisation Methods 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000011550 stock solution Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 230000033116 oxidation-reduction process Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 11
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003225 biodiesel Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000008177 pharmaceutical agent Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 231100000678 Mycotoxin Toxicity 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002636 mycotoxin Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/88—Post-polymerisation treatment
- C08G63/90—Purification; Drying
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/20—Degassing; Venting; Bubble traps
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
- C12M41/22—Heat exchange systems, e.g. heat jackets or outer envelopes in contact with the bioreactor walls
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/26—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pH
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/28—Means for regulation, monitoring, measurement or control, e.g. flow regulation of redox potential
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/04—Phase separators; Separation of non fermentable material; Fractionation
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/42—Hydroxy-carboxylic acids
Abstract
The invention provides equipment and a method for synthesizing polyhydroxyalkanoate, and relates to the field of kitchen waste treatment. An apparatus for synthesizing polyhydroxyalkanoate, comprising: an anaerobic acid-producing unit for producing a raw material for PHA synthesis, a PHA synthesis unit for PHA synthesis and a PHA extraction unit for PHA extraction; the anaerobic acid-producing device, the PHA synthesizing device and the PHA extracting device are communicated in sequence. A method of synthesizing a polyhydroxyalkanoate, comprising: inputting raw materials including kitchen waste into an anaerobic acid production device for anaerobic fermentation, and then sending the product into a PHA synthesis device for synthesis to obtain a material containing PHA; and (4) feeding the material containing the PHA into a PHA extraction device for extraction to obtain a final PHA product. The equipment and the method for synthesizing the polyhydroxyalkanoate can effectively utilize the kitchen waste, and have the advantages of environmental protection, economy, safety, no secondary pollution and the like.
Description
Technical Field
The invention relates to the field of kitchen waste treatment, in particular to equipment and a method for synthesizing polyhydroxyalkanoate.
Background
The kitchen waste is the most important one of food waste, and comprises edible residues generated in families, schools, canteens, catering industries and the like. It is a complex composition of oil, water, pericarp, vegetable, rice flour, fish, meat, bone, and a mixture of waste tableware, plastic, paper towel, etc. The kitchen waste is mainly characterized by high water content, wherein the water content accounts for 80-90% of the total amount of the waste; the content of organic matters is high, the content of grease is high, and the content of salt is high; easy decay and deterioration, easy fermentation and easy odor generation; is easy to grow parasites, eggs, pathogenic microorganisms, mycotoxin and other harmful substances.
At present, the domestic kitchen waste treatment mainly utilizes aerobic composting, anaerobic digestion and feed drying technologies. However, the pollution of the aerobic compost to harmful organic matters and heavy metals cannot be well solved, the harmless treatment is not thorough, the treatment process is not closed, and secondary pollution is easily caused; the quality of the organic fertilizer is greatly restricted by the components of the kitchen waste, the sale is not smooth, the composting treatment period is long, the occupied area is large, and the sanitary condition is relatively poor; the anaerobic digestion engineering has large investment, large occupied area and high operation cost; the problem of protein homology can not be avoided in the process of drying feed, the product quality is not guaranteed, and certain hidden danger exists when the feed is used as feed.
In view of this, the present application is specifically made.
Disclosure of Invention
The present invention has been made to solve the above problems by providing an apparatus and a method for synthesizing polyhydroxyalkanoate.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an apparatus for synthesizing polyhydroxyalkanoate, comprising: an anaerobic acid-producing unit for producing a raw material for PHA synthesis, a PHA synthesis unit for PHA synthesis and a PHA extraction unit for PHA extraction;
the anaerobic acid production device, the PHA synthesis device and the PHA extraction device are communicated in sequence.
Preferably, the equipment for synthesizing the polyhydroxyalkanoate further comprises a pulping device for preparing the kitchen waste into slurry and an oil-water separation device for separating oil, the pulping device and the oil-water separation device are sequentially communicated, and an outlet of the oil-water separation device is communicated with a feed inlet of the anaerobic acid production device.
Preferably, a crushing mechanism for sorting and crushing the kitchen waste is arranged in the pulping device.
Preferably, the oil-water separation device comprises an oil-water separation device body with an accommodating space;
the oil-water separation device body is provided with an oil-water separation device feed inlet for receiving materials from the pulping device, a grease discharge outlet for outputting grease and an oil-water separation device discharge outlet for outputting the materials;
the oil storage tank is characterized in that the oil discharge hole is communicated with the oil storage tank, and an oil separating groove used for collecting and guiding oil to pass through the oil discharge hole is formed in the accommodating space.
Preferably, the feed inlet of the oil-water separation device is arranged at the lower part of the oil-water separation device body; the oil separating groove is arranged at the upper part of the accommodating space.
Preferably, a filtering device for filtering large particles is further arranged between the oil-water separation device and the anaerobic acid-producing device; the outlet of the filtering device is communicated with the feed inlet of the anaerobic acid-producing device.
Preferably, a first liquid storage homogenizing device is further arranged between the oil-water separation device and the filtering device.
Preferably, the first liquid-storage homogenizing device is provided with a stirrer, a heater, a sludge inlet for inputting sludge and a water inlet for inputting water.
Preferably, a separation device for solid-liquid separation is further arranged between the anaerobic acid-producing device and the PHA synthesis device.
Preferably, the separation device comprises a membrane separation device.
Preferably, the separation device further comprises a membrane washing device, and the membrane washing device comprises a heating module and a stirring module.
Preferably, a second stock solution homogenizing device for material homogenization is arranged between the separating device and the PHA synthesizing device.
Preferably, a first solid-liquid separation device for separating and obtaining crude PHA is arranged between the PHA synthesis device and the PHA extraction device.
Preferably, the discharge port of the PHA extraction device is communicated with a second solid-liquid separation device for separating the PHA final product.
Preferably, the anaerobic acid-producing device comprises an anaerobic acid-producing device body with a containing space;
the anaerobic acid-producing device body is provided with a feeding hole for feeding, a discharging hole for discharging and an exhaust hole for exhausting; the anaerobic acid-producing device is characterized in that a first stirring mechanism for stirring, a first pH probe for measuring the pH value of a system, an ORP probe for measuring the oxidation-reduction potential of a solution and a temperature controller for controlling the temperature are arranged in the anaerobic acid-producing device body.
Preferably, the anaerobic acid-producing device body is further provided with a sampling port for sampling, a window for observation, a wet gas flowmeter for monitoring the gas amount of the exhaust port, a feeding control mechanism for feeding and a first heat-insulating jacket for heat insulation.
Preferably, the PHA synthesis device comprises a synthesis device body having a housing space;
the synthesis device body is internally provided with a second stirring mechanism for stirring, a second pH probe for measuring the pH value of the system, a DO probe for monitoring dissolved oxygen and a synthesis device temperature controller for controlling the temperature.
Preferably, the synthesis device body is provided with a synthesis device window for observation, a blower for inputting air into the PHA synthesis device and a second heat-preservation jacket for heat preservation, and an air filter is arranged on a pipeline communicated with the PHA synthesis device.
Preferably, the PHA extraction device comprises an extraction device body having a housing space;
the inside third rabbling mechanism that is used for the stirring and the heating mechanism that is used for heating that are provided with of extraction element body.
Preferably, the apparatus for synthesizing polyhydroxyalkanoate further comprises a plurality of transfer pumps for transferring the materials.
A method for synthesizing polyhydroxyalkanoate by using the equipment for synthesizing polyhydroxyalkanoate, comprising the following steps:
inputting raw materials including kitchen waste into an anaerobic acid production device for anaerobic fermentation, and then sending the product into a PHA synthesis device for synthesis to obtain a material containing PHA;
and (3) feeding the material containing the PHA into a PHA extraction device for extraction to obtain a final PHA product.
Preferably, the reaction temperature of the anaerobic fermentation is 50-60 ℃, and the reaction time is 2-4 days;
preferably, the PHA synthesis apparatus has a reaction temperature of 30-40 ℃ and a reaction time of 1-2 days.
Preferably, before the kitchen waste is input into the anaerobic acid-producing device, the kitchen waste further comprises:
crushing and screening the kitchen waste by using a pulping device, and then separating by using an oil-water separation device to obtain an anaerobic fermentation raw material;
preferably, the particle size of the solid matters in the kitchen waste treated by the pulping device is 3-4 mm;
preferably, before the anaerobic fermentation raw material is input into the anaerobic acid-producing device, the anaerobic fermentation raw material further comprises: filtering by using a filtering device;
preferably, after the filtration is carried out by using the filter device, the particle size of solid particles in the material is less than or equal to 6 mm;
preferably, before the anaerobic fermentation raw material is input into the filtering device, the anaerobic fermentation raw material further comprises: homogenizing by using a first liquid storage homogenizing device;
preferably, the anaerobic fermentation raw material is mixed with sludge in the first liquid-storage homogenizing device.
Preferably, the product of the anaerobic fermentation further comprises, before being input to the PHA synthesis unit: performing solid-liquid separation by using a separation device;
preferably, after the solid-liquid separation is carried out by using the separation device, the particle size of solid particles in the material is less than or equal to 6 mm;
preferably, the product of anaerobic fermentation further comprises, after solid-liquid separation using the separation device and before being input to the PHA synthesis device: and homogenizing by using a second liquid storage homogenizing device.
Preferably, before feeding the material containing PHA to the PHA extraction unit, it also comprises: carrying out solid-liquid separation on the material containing the PHA;
preferably, the PHA extraction device is used to extract the PHA product from the PHA product.
Compared with the prior art, the invention has the beneficial effects that:
according to the equipment and the method for synthesizing polyhydroxyalkanoate, the anaerobic acid production device, the PHA synthesis device and the PHA extraction device are used together, PHA is synthesized while kitchen waste is subjected to resource treatment, the economic added value of a produced product is high, the reduction of organic matters is high, the conversion rate of byproducts is high, and the technology is a kitchen waste resource utilization technology with the advantages of environmental protection, economy, safety, no secondary pollution and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 shows a schematic diagram of an apparatus for synthesizing polyhydroxyalkanoate provided in example 1;
FIG. 2 shows a schematic diagram of the anaerobic acid generating device provided in example 1;
FIG. 3 shows a schematic view of the PHA synthesis apparatus provided in example 1;
FIG. 4 shows a schematic diagram of an apparatus for synthesizing polyhydroxyalkanoate provided in example 2;
FIG. 5 shows a schematic view of the apparatus for synthesizing polyhydroxyalkanoate provided in example 3;
FIG. 6 shows a schematic diagram of an apparatus for synthesizing polyhydroxyalkanoate provided in example 4;
fig. 7 shows a schematic diagram of the apparatus for synthesizing polyhydroxyalkanoate provided in example 5.
Description of the main element symbols:
1-anaerobic acid production device; 10-a feed inlet; 11-a discharge hole; 12-an exhaust port; 13-a first stirring mechanism; 14-a first detection control component; 15-a first insulating jacket;
2-a PHA synthesis unit; 20-a second stirring mechanism; 21-a second detection control component; 22-the compositing device Window; 23-a blower; 24-a second insulating jacket;
3-a PHA extraction unit; 30-a first solid-liquid separation device; 31-a second solid-liquid separation device;
4-a pulping device; 5-an oil-water separation device; 6-a filtration device; 7-a first stock solution homogenizing device; 8-a separation device; 9-a second liquid storage homogenizing device.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example 1
As shown in fig. 1, the present embodiment provides an apparatus for synthesizing polyhydroxyalkanoate, comprising: an anaerobic acid production plant 1 for producing a raw material for PHA synthesis, a PHA synthesis plant 2 for PHA synthesis and a PHA extraction plant 3 for PHA extraction; the anaerobic acid production device 1, the PHA synthesis device 2 and the PHA extraction device 3 are communicated in sequence through pipelines.
In a preferred embodiment, as shown in fig. 2, the anaerobic acid-producing device 1 comprises an anaerobic acid-producing device body with a containing space, wherein a feeding hole 10 for feeding, a discharging hole 11 for discharging and an exhaust hole 12 for exhausting are arranged on the anaerobic acid-producing device body; the anaerobic acid-producing device body is internally provided with a first stirring mechanism 13 for stirring and a first detection control component 14 (the first detection control component 14 comprises a first pH probe for measuring the pH value of the system, an ORP probe for measuring the oxidation-reduction potential of the solution and a temperature controller for controlling the temperature).
In a more preferred embodiment, the anaerobic acid-producing device body of the anaerobic acid-producing device 1 is further provided with a sampling port for sampling, a window for observation, a wet gas flow meter for monitoring the gas amount of the exhaust port, a feeding control mechanism for feeding and a first heat-insulating jacket 15 for heat insulation. It should be noted that the sampling port and the exhaust port may be shared.
In a preferred embodiment, as shown in fig. 3, the PHA synthesis device 2 comprises a synthesis device body with a containing space, and a second stirring mechanism 20 and a second detection control component 21 (including a second pH probe for measuring the pH value of the system, a DO probe for monitoring dissolved oxygen, and a synthesis device temperature controller for controlling the temperature) are arranged in the synthesis device body.
In a more preferred embodiment, the synthesis device body of the PHA synthesis device 2 is further provided with a synthesis device window 22 for observation, a blower 23 for feeding air into the PHA synthesis device, and a second heat-insulating jacket 24 for heat insulation, and an air filter is provided on a pipeline communicating the blower 23 (which consumes a large amount of oxygen for the aerobic reaction of PHA synthesis) and the PHA synthesis device. The necessary structures of the feed inlet, the discharge outlet and the like can be arranged conventionally as required, and the application is not limited.
In an alternative embodiment, the PHA extraction device 3 uses a heating method to extract PHA, the PHA extraction device 3 comprises an extraction device body with a containing space, and an extraction device stirring mechanism for stirring and a heating mechanism for heating are arranged inside the extraction device body. In addition, the PHA extractor 3 also comprises necessary structures and accessory facilities such as a feed inlet, a stirring device, a discharge outlet and the like; in addition, the heating mechanism may further include a temperature control device. In order to reduce the environmental pollution and increase the utilization of the pharmaceutical agents, the PHA extraction device 3 may further include a pharmaceutical agent recovery device.
The present invention also provides a method for synthesizing polyhydroxyalkanoate, comprising: inputting raw materials including kitchen waste into an anaerobic acid production device for anaerobic fermentation, and then sending the product into a PHA synthesis device for synthesis to obtain a material containing PHA; and (4) feeding the material containing the PHA into a PHA extraction device for extraction to obtain a final PHA product. The reaction temperature of the anaerobic fermentation is 50 ℃, and the reaction time is 4 days; the reaction temperature of the PHA synthesis unit was 30 ℃ and the reaction time was 2 days.
Example 2
Referring to fig. 4, on the basis of example 1, in order to better perform anaerobic fermentation and recover grease in kitchen waste, in an optional embodiment, the apparatus for synthesizing polyhydroxyalkanoate further includes a pulping device 4 for preparing the kitchen waste into slurry and an oil-water separation device 5 for separating grease, the pulping device and the oil-water separation device are sequentially communicated, a delivery pump is disposed on the connection pipeline, and an outlet of the oil-water separation device is communicated with an inlet of the anaerobic acid production device. A pulverizer for pulverizing and sorting kitchen waste is arranged in the pulping device, and solid substances are pulverized and sieved to obtain particles with the particle size of 3-4mm or less. The oil-water separation device comprises an oil-water separation device body with an accommodating space; the oil-water separation device body is provided with an oil-water separation device feed inlet for receiving materials from the pulping device, a grease discharge outlet for outputting grease, and an oil-water separation device discharge outlet for outputting materials; the grease discharge port is communicated with the oil storage tank, and an oil separating groove used for collecting and guiding grease to enter the oil storage tank through the grease discharge port is arranged in the accommodating space.
For better oil-water separation, in an alternative embodiment, the oil-water separation device feed inlet is arranged at the bottom of the oil-water separation device body or at a side surface of the oil-water separation device body, and is relatively lower in height; the oil separating groove is arranged at the upper part of the accommodating space.
The present invention also provides a method for synthesizing polyhydroxyalkanoate, comprising: the kitchen waste is input into the pulping device 4 for sorting and crushing, inorganic substances such as glass, metal or gravel are screened out, meanwhile, the materials can be crushed into small granular substances with the diameter of 3-4mm, and the efficiency of subsequent kitchen waste treatment can be greatly improved. The material after pulping is conveyed into the oil-water separation device 5 through the discharge hole and the feed inlet of the oil-water separation device 5, oil and water are separated through standing, grease is output to the oil storage tank under the collection, guidance and interception of the oil separation tank and can be used as a processing raw material of biodiesel, other organic matters are output to the anaerobic acid production device from the discharge hole for anaerobic fermentation, and then the product is conveyed to the PHA synthesis device for synthesis to obtain a material containing PHA; and (4) feeding the material containing the PHA into a PHA extraction device for extraction to obtain a final PHA product. The reaction temperature of the anaerobic fermentation is 60 ℃, and the reaction time is 2 days; the reaction temperature of the PHA synthesis unit was 40 ℃ and the reaction time was 1 day.
Example 3
Referring to fig. 5, on the basis of embodiment 2, in order to better improve the efficiency of anaerobic fermentation, a filtering device 6 for filtering large particles is further arranged between the oil-water separation device 5 and the anaerobic acid-producing device 1; the outlet of the filtering device 6 is communicated with the inlet of the anaerobic acid-producing device 1.
In order to better homogenize the material and improve the stability of continuous production, in an optional embodiment, a first liquid storage homogenizing device 7 is further arranged between the oil-water separation device 5 and the filtering device 6. The first stock solution homogenizing device 7 is provided with a stirrer and a heater. The materials in the first liquid storage homogenizing device 7 are conveyed into the filtering device 6 through a conveying pump.
In order to increase the beneficial flora and to treat the municipal sludge, in an alternative embodiment the first stock homogeniser 7 is provided with a sludge inlet for feeding sludge and a water inlet for feeding water. The purpose of the water input is to control the solid content in the first liquid-storing homogenizing device 7 (generally, the solid content is controlled to be between 7 and 10 percent).
The present invention also provides a method for synthesizing polyhydroxyalkanoate, comprising: the kitchen waste is input into the pulping device 4 for sorting and crushing, inorganic substances such as glass, metal or gravel are screened out, meanwhile, the materials can be crushed into small granular substances with the diameter of 3-4mm, and the efficiency of subsequent kitchen waste treatment can be greatly improved. The materials after pulping are conveyed into the oil-water separation device 5 through the discharge hole and the feed inlet of the oil-water separation device 5, oil and water are separated through standing, grease is output to the oil storage tank under the collection, guidance and interception of the oil separation tank and can be used as processing raw materials of biodiesel, other organic matters are output to the first liquid storage homogenizing device 7 from the discharge hole for homogenization, and municipal sludge can be added according to needs in the process. Filtering large particles of the homogenized material by a filtering device 6, inputting the material into an anaerobic acid production device for anaerobic fermentation, and then sending a product into a PHA synthesis device for synthesis to obtain a material containing PHA; and (4) feeding the material containing the PHA into a PHA extraction device for extraction to obtain a final PHA product. The reaction temperature of anaerobic fermentation is 55 ℃, and the reaction time is 3 days; the reaction temperature of the PHA synthesis unit was 35 ℃ and the reaction time was 36 hours.
Example 4
Referring to fig. 6, in addition to example 3, in order to ensure the efficiency of PHA synthesis, a separation device 8 for solid-liquid separation is further provided between the anaerobic acid production device 1 and the PHA synthesis device 2.
Optionally, the separation device 8 is a membrane separation device, and the membrane is a ceramic membrane and mainly separates solid particles with a size of more than 6 mm. The membrane separation device can realize the separation of continuous flow-through media.
In order to ensure the separation effect of the membrane separation device, in an alternative embodiment, the separation device 8 further comprises a membrane cleaning device comprising a heating module (e.g. a flange heater) and a stirring module (e.g. a stirrer). The membrane separation apparatus further includes necessary structures and accessories such as a cleaning agent inlet, a pump, a return line, and the like, and the return line conveys the liquid after cleaning back to the separation apparatus 8.
For better homogenization of the material and at the same time for improved stability of the continuous production, in an alternative embodiment a second stock solution homogenizing device 9 for material homogenization is arranged between the separating device 8 and the PHA synthesis device 2. The second liquid storage homogenizing device 9 is provided with a feed inlet, a stirring device, a tap water inlet, a discharge port and other structures and facilities.
The present invention also provides a method for synthesizing polyhydroxyalkanoate, comprising: the kitchen waste is input into the pulping device 4 for sorting and crushing, inorganic substances such as glass, metal or gravel are screened out, meanwhile, the materials can be crushed into small granular substances with the diameter of 3-4mm, and the efficiency of subsequent kitchen waste treatment can be greatly improved. The materials after pulping are conveyed into the oil-water separation device 5 through the discharge hole and the feed inlet of the oil-water separation device 5, oil and water are separated through standing, grease is output to the oil storage tank under the collection, guidance and interception of the oil separation tank and can be used as processing raw materials of biodiesel, other organic matters are output to the first liquid storage homogenizing device 7 from the discharge hole for homogenization, and municipal sludge can be added according to needs in the process. Filtering large particles of the homogenized material by a filter device 6, inputting the material into an anaerobic acid production device for anaerobic fermentation, then sending a product into a separation device 8 for solid-liquid separation of the material, then inputting a liquid mixture into a second liquid storage homogenizing device 9 for homogenization, and inputting the homogenized material into a PHA synthesis device 2 for synthesis to obtain a material containing PHA; the material containing PHA is sent to a PHA extraction device 3 for extraction to obtain final PHA products. The reaction temperature of anaerobic fermentation is 53 ℃, and the reaction time is 50 hours; the reaction temperature of the PHA synthesis unit was 36 ℃ and the reaction time was 40 hours.
Example 5
Referring to fig. 7, in addition to the embodiment 4, in order to improve the extraction efficiency, a first solid-liquid separation device 30 for separating the PHA crude product is arranged between the PHA synthesis device 2 and the PHA extraction device 3.
In order to increase the net content of PHA product, in an alternative embodiment, the discharge of the PHA extraction unit is in communication with a second solid-liquid separation unit 31 for separation into the final PHA product.
The first solid-liquid separation device 30 and the second solid-liquid separation device 31 are provided with a feed inlet, a liquid phase discharge outlet and a solid phase discharge outlet; the solid-phase discharge port outputs the materials through a screw conveyor.
In order to reduce environmental pollution, the liquid phase discharge port is communicated with a sewage treatment system, and the sewage is discharged after reaching the standard.
The present invention also provides a method for synthesizing polyhydroxyalkanoate, comprising: the kitchen waste is input into the pulping device 4 for sorting and crushing, inorganic substances such as glass, metal or gravel are screened out, meanwhile, the materials can be crushed into small granular substances with the diameter of 3-4mm, and the efficiency of subsequent kitchen waste treatment can be greatly improved. The material after the slurrying passes through the discharge gate and carries to oil water separator 5 in through oil water separator 5's feed inlet, make oil water separation through stewing, the grease is through the collection of natural overflow mode at oil removal groove, guide and interception down output to the oil storage tank, can be used for as biodiesel's processing raw materials, other organic matters are exported from the discharge gate to first stock solution homogeneity device 7 and are carried out the homogeneity, can add municipal sludge as required at this in-process, municipal sludge's addition is on the one hand in order to improve anaerobic fermentation's efficiency, in addition can also digest partly municipal sludge. The homogenized material is filtered by a filtering device 6 (the filtering device 6 needs to be regularly washed and cleaned to prevent large-particle kitchen waste from being blocked after long-term filtering, so that normal operation is affected, and the anaerobic acid production efficiency is further improved), then the large particles are filtered and input into an anaerobic acid production device 1 for anaerobic fermentation (the anaerobic acid production device 1 mainly converts organic substances in the kitchen waste into low-grade fatty acid, alcohol, neutral compounds and the like through the hydrolytic acidification of anaerobic microorganisms, so as to provide necessary substrates for a final PHA synthesis unit, and the key point of the step is that the type of the generated volatile organic acid determines the type of final synthesized PHA), then the product is sent into a separation device 8 to carry out solid-liquid separation on the material, then the liquid mixture is sent into a second liquid storage homogenizing device 9 to be homogenized, and the homogenized material is sent into a PHA synthesis device 2 to be synthesized to obtain a material containing PHA; the material containing PHA is sent to a first solid-liquid separation device 30 for solid-liquid separation to obtain PHA crude products, then the PHA crude products are sent to a PHA extraction device 3 for extraction, the extract is sent to a second solid-liquid separation device 31 for solid-liquid separation, and the solid is PHA final products. The reaction temperature of anaerobic fermentation is 58 ℃, and the reaction time is 30 hours; the reaction temperature of the PHA synthesis unit was 32 ℃ and the reaction time was 42 hours.
The devices in the apparatus for synthesizing polyhydroxyalkanoate are connected by a pipeline, and a transfer pump may be provided at an appropriate position as needed, and the number of pumps may be selected as needed.
The utilization of kitchen waste resources can be realized, and when the kitchen waste is subjected to resource treatment, the PHA is synthesized by using the kitchen waste acidizing fluid through the efficient microbial flora, byproducts with high economic added values are produced, high recovery of grease is realized, high reduction of organic matters is realized, and high conversion rate of the byproducts is realized, so that the technology is a kitchen waste resource utilization technology with the advantages of environmental protection, economy, safety, no secondary pollution and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An apparatus for synthesizing polyhydroxyalkanoate, comprising: an anaerobic acid-producing unit for producing a raw material for PHA synthesis, a PHA synthesis unit for PHA synthesis and a PHA extraction unit for PHA extraction;
the anaerobic acid production device, the PHA synthesis device and the PHA extraction device are communicated in sequence.
2. The apparatus for synthesizing polyhydroxyalkanoate of claim 1, further comprising a pulping device for preparing kitchen waste into slurry and an oil-water separation device for separating oil, wherein the pulping device and the oil-water separation device are sequentially communicated, and an outlet of the oil-water separation device is communicated with a feed inlet of the anaerobic acid-producing device;
preferably, a crushing mechanism for sorting and crushing the kitchen waste is arranged in the pulping device;
preferably, the oil-water separation device comprises an oil-water separation device body with an accommodating space;
the oil-water separation device body is provided with an oil-water separation device feed inlet for receiving materials from the pulping device, a grease discharge outlet for outputting grease and an oil-water separation device discharge outlet for outputting the materials;
the oil outlet is communicated with the oil storage tank, and an oil separating groove for collecting and guiding oil to enter the oil storage tank through the oil outlet is arranged in the accommodating space;
preferably, the feed inlet of the oil-water separation device is arranged at the lower part of the oil-water separation device body; the oil separating groove is arranged at the upper part of the accommodating space;
preferably, a filtering device for filtering large particles is further arranged between the oil-water separation device and the anaerobic acid-producing device; the outlet of the filtering device is communicated with the feed inlet of the anaerobic acid-producing device;
preferably, a first liquid storage homogenizing device is further arranged between the oil-water separation device and the filtering device;
preferably, the first liquid-storage homogenizing device is provided with a stirrer, a heater, a sludge inlet for inputting sludge and a water inlet for inputting water.
3. The apparatus for synthesizing polyhydroxyalkanoate of claim 1, wherein a separation device for solid-liquid separation is further provided between the anaerobic acid-producing device and the PHA synthesis device;
preferably, a second stock solution homogenizing device for material homogenization is arranged between the separation device and the PHA synthesis device; preferably, the separation device comprises a membrane separation device;
preferably, the separation device further comprises a membrane cleaning device, wherein the membrane cleaning device comprises a heating module and a stirring module;
preferably, a first solid-liquid separation device for separating and obtaining crude PHA is arranged between the PHA synthesis device and the PHA extraction device;
preferably, the discharge port of the PHA extraction device is communicated with a second solid-liquid separation device for separating the PHA final product.
4. The apparatus for synthesizing polyhydroxyalkanoate of claim 1, wherein the anaerobic acid generating device comprises an anaerobic acid generating device body having a receiving space;
the anaerobic acid-producing device body is provided with a feeding hole for feeding, a discharging hole for discharging and an exhaust hole for exhausting; a first stirring mechanism for stirring, a first pH probe for measuring the pH value of a system, an ORP probe for measuring the oxidation-reduction potential of a solution and a temperature controller for controlling the temperature are arranged in the anaerobic acid-producing device body;
preferably, the anaerobic acid-producing device body is further provided with a sampling port for sampling, a window for observation, a wet gas flowmeter for monitoring the gas amount of the exhaust port, a feeding control mechanism for feeding and a first heat-insulating jacket for heat insulation.
5. The apparatus for synthesizing polyhydroxyalkanoate of claim 1, wherein the PHA synthesis device comprises a synthesis device body having a housing space;
a second stirring mechanism for stirring, a second pH probe for measuring the pH value of the system, a DO probe for monitoring dissolved oxygen and a synthesizer temperature controller for controlling temperature are arranged in the synthesizer body;
preferably, the synthesis device body is provided with a synthesis device window for observation, a blower for inputting air into the PHA synthesis device and a second heat-preservation jacket for heat preservation, and an air filter is arranged on a pipeline communicated with the PHA synthesis device.
6. The apparatus for synthesizing polyhydroxyalkanoate of any one of claims 1 to 5, wherein the PHA extraction device comprises an extraction device body having a housing space;
a third stirring mechanism for stirring and a heating mechanism for heating are arranged in the extraction device body;
preferably, the equipment for synthesizing the polyhydroxyalkanoate further comprises a plurality of conveying pumps for conveying materials.
7. A method for synthesizing polyhydroxyalkanoate, which is carried out using the apparatus for synthesizing polyhydroxyalkanoate of any one of claims 1 to 6, comprising:
inputting raw materials including kitchen waste into an anaerobic acid production device for anaerobic fermentation, and then sending the product into a PHA synthesis device for synthesis to obtain a material containing PHA;
and (3) feeding the material containing the PHA into a PHA extraction device for extraction to obtain a final PHA product.
8. The method of claim 7, wherein the anaerobic fermentation is carried out at a reaction temperature of 50-60 ℃ for 2-4 days;
preferably, the PHA synthesis apparatus has a reaction temperature of 30-40 ℃ and a reaction time of 1-2 days.
9. The method as claimed in claim 7, wherein before the kitchen waste is inputted into the anaerobic acid generator, the method further comprises:
crushing and screening the kitchen waste by using a pulping device, and then separating by using an oil-water separation device to obtain an anaerobic fermentation raw material;
preferably, the particle size of the solid matters in the kitchen waste treated by the pulping device is 3-4 mm;
preferably, before the anaerobic fermentation raw material is input into the anaerobic acid-producing device, the anaerobic fermentation raw material further comprises: filtering by using a filtering device;
preferably, after the filtration is carried out by using the filter device, the particle size of solid particles in the material is less than or equal to 6 mm;
preferably, before the anaerobic fermentation raw material is input into the filtering device, the anaerobic fermentation raw material further comprises: homogenizing by using a first liquid storage homogenizing device;
preferably, the anaerobic fermentation raw material is mixed with sludge in the first liquid-storage homogenizing device;
preferably, the product of the anaerobic fermentation further comprises, before being input to the PHA synthesis unit: performing solid-liquid separation by using a separation device;
preferably, after the solid-liquid separation is carried out by using the separation device, the particle size of solid particles in the material is less than or equal to 6 mm;
preferably, the product of anaerobic fermentation further comprises, after solid-liquid separation using the separation device and before being input to the PHA synthesis device: and homogenizing by using a second liquid storage homogenizing device.
10. The method of any one of claims 7-9, wherein the feeding of the PHA-containing material to the PHA extraction unit further comprises: carrying out solid-liquid separation on the material containing the PHA;
preferably, the PHA extraction device is used to extract the PHA product from the PHA product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887679.6A CN111892699A (en) | 2020-08-28 | 2020-08-28 | Apparatus and method for synthesizing polyhydroxyalkanoate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887679.6A CN111892699A (en) | 2020-08-28 | 2020-08-28 | Apparatus and method for synthesizing polyhydroxyalkanoate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111892699A true CN111892699A (en) | 2020-11-06 |
Family
ID=73224743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010887679.6A Pending CN111892699A (en) | 2020-08-28 | 2020-08-28 | Apparatus and method for synthesizing polyhydroxyalkanoate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111892699A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961766A (en) * | 2021-02-02 | 2021-06-15 | 清华大学 | Reaction system for synthesizing polyhydroxyalkanoate from organic waste and using method thereof |
| WO2023010787A1 (en) | 2021-08-02 | 2023-02-09 | 中国农业科学院农业环境与可持续发展研究所 | Method for producing polyhydroxyalkanoate by fermentation of agricultural wastes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190203237A1 (en) * | 2017-12-21 | 2019-07-04 | Genecis Bioindustries Inc. | Method for producing polyhydroxyalkanoates (pha) from organic waste |
| US20190360008A1 (en) * | 2017-12-21 | 2019-11-28 | Genecis Bioindustries Inc. | Method for producing polyhydroxyalkanoates (pha) from organic waste |
| CN212403985U (en) * | 2020-08-28 | 2021-01-26 | 上海本农天合生物工程技术有限公司 | Equipment for synthesizing polyhydroxyalkanoate |
-
2020
- 2020-08-28 CN CN202010887679.6A patent/CN111892699A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190203237A1 (en) * | 2017-12-21 | 2019-07-04 | Genecis Bioindustries Inc. | Method for producing polyhydroxyalkanoates (pha) from organic waste |
| US20190360008A1 (en) * | 2017-12-21 | 2019-11-28 | Genecis Bioindustries Inc. | Method for producing polyhydroxyalkanoates (pha) from organic waste |
| CN212403985U (en) * | 2020-08-28 | 2021-01-26 | 上海本农天合生物工程技术有限公司 | Equipment for synthesizing polyhydroxyalkanoate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961766A (en) * | 2021-02-02 | 2021-06-15 | 清华大学 | Reaction system for synthesizing polyhydroxyalkanoate from organic waste and using method thereof |
| CN112961766B (en) * | 2021-02-02 | 2022-11-11 | 清华大学 | Reaction system for synthesizing polyhydroxyalkanoate by organic waste and using method thereof |
| WO2023010787A1 (en) | 2021-08-02 | 2023-02-09 | 中国农业科学院农业环境与可持续发展研究所 | Method for producing polyhydroxyalkanoate by fermentation of agricultural wastes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104785502B (en) | Kitchen waste and food waste treatment process and kitchen waste and food waste treatment system | |
| Biller et al. | Primary sewage sludge filtration using biomass filter aids and subsequent hydrothermal co-liquefaction | |
| CN102080104B (en) | Comprehensive treatment method for preparing gas and fertilizer by utilizing kitchen waste | |
| CN104415966B (en) | Restaurant garbage treating system and method | |
| CN102850093B (en) | Method for preparing fertilizer by mineralized fermentation through rejecting heavy metal in kitchen waste and decomposing dioxin | |
| CN101999516B (en) | Method for preparing biological protein feed from food wastes | |
| CN102921711B (en) | Organic solid waste regeneration resource treatment method and apparatus system thereof | |
| CN102249477B (en) | Processing method for oil-water separation of kitchen garbage | |
| CN107540432A (en) | A kind of method and apparatus with active oxygen and activation act high speed processing organic solid castoff | |
| EP2138244B1 (en) | Bio-waste disposal method and apparatus | |
| CN101724655B (en) | Method for producing methane as clean energy source by utilizing catering organic waste | |
| CN102489496A (en) | Method for carrying out anaerobic digestion on kitchen waste after heat-moisture treatment | |
| CN110951789B (en) | Kitchen waste treatment method and system | |
| CN112588788B (en) | Short-flow resourceful treatment process for kitchen waste | |
| CN102603117A (en) | Treatment method of secondary wastewater of kitchen waste | |
| CN105713928A (en) | Kitchen waste treating technology | |
| CN111892699A (en) | Apparatus and method for synthesizing polyhydroxyalkanoate | |
| CN104230134A (en) | Two-stage biochemical treatment method for kitchen waste | |
| CN109277397A (en) | A kind of restaurant garbage treating system | |
| CN110079444B (en) | Novel kitchen waste anaerobic fermentation treatment device and method | |
| CN212403985U (en) | Equipment for synthesizing polyhydroxyalkanoate | |
| CN111570466A (en) | System and method for cooperatively treating kitchen garbage and food and beverage garbage | |
| CN206127088U (en) | Be used for high solid -state anaerobic fermentation processing apparatus of cities and towns mud | |
| CN108517294A (en) | A kind of debirs processing system and processing method | |
| WO2017216720A2 (en) | Process for treating and generating energy from biomasses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |