CN111170774A - Formula and preparation method of degradable and weight-gaining container for greening gardens - Google Patents
Formula and preparation method of degradable and weight-gaining container for greening gardens Download PDFInfo
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- CN111170774A CN111170774A CN202010015878.8A CN202010015878A CN111170774A CN 111170774 A CN111170774 A CN 111170774A CN 202010015878 A CN202010015878 A CN 202010015878A CN 111170774 A CN111170774 A CN 111170774A
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- 238000002360 preparation method Methods 0.000 title abstract description 18
- 238000009472 formulation Methods 0.000 title description 2
- 210000003746 feather Anatomy 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000010802 sludge Substances 0.000 claims abstract description 36
- 238000011049 filling Methods 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 108010009736 Protein Hydrolysates Proteins 0.000 claims abstract description 18
- 239000003531 protein hydrolysate Substances 0.000 claims abstract description 16
- 239000000413 hydrolysate Substances 0.000 claims description 34
- 102000011782 Keratins Human genes 0.000 claims description 33
- 108010076876 Keratins Proteins 0.000 claims description 33
- 230000003301 hydrolyzing effect Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 239000010902 straw Substances 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 239000010865 sewage Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007062 hydrolysis Effects 0.000 description 19
- 238000006460 hydrolysis reaction Methods 0.000 description 19
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 230000002378 acidificating effect Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000010008 shearing Methods 0.000 description 7
- 239000002918 waste heat Substances 0.000 description 7
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 6
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000009279 wet oxidation reaction Methods 0.000 description 4
- 241000272525 Anas platyrhynchos Species 0.000 description 3
- 241000272814 Anser sp. Species 0.000 description 3
- 239000005711 Benzoic acid Substances 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 3
- 235000010233 benzoic acid Nutrition 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920000881 Modified starch Polymers 0.000 description 2
- 239000004368 Modified starch Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000019426 modified starch Nutrition 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000009283 thermal hydrolysis Methods 0.000 description 2
- 101710200191 Feather keratin Proteins 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011499 joint compound Substances 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
- 239000012778 molding material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/005—Fertilisers made from animal corpses, or parts thereof from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0291—Planting receptacles specially adapted for remaining in the soil after planting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to the technical field of landscaping, and particularly relates to a degradable and fertility-increasing container formula for greening gardens and a preparation method thereof, wherein the formula is characterized in that: the container formula comprises the following components in parts by weight: 10-25 parts of horn feather protein hydrolysate, 30-60 parts of filling material and 10-30 parts of water; the filling material is sludge and plant fiber, or plant fiber; in the optimized scheme, the filling material comprises 10-20 parts by weight of dry weight of sludge and 20-40 parts by weight of plant fiber material. The container is well formed, has long service time, can be degraded and has no pollution to the environment; low production cost and simple operation.
Description
Technical Field
The invention belongs to the technical field of landscaping, and particularly relates to a degradable and fertility-increasing container formula for greening gardens and a preparation method thereof.
Background
At present, the types of flowerpots in the flower market are required to be the best, and the flowerpots are … … made of wood, mud, ceramic and plastic. The wooden flower pot is light and portable, but has no colorful color; the mud flowerpot has good air permeability, but is not beautiful, the weight is large, the ceramic flowerpot is beautiful and gorgeous, but is fragile and high in price, the plastic flowerpot is light, the color is beautiful, but the air permeability is not good, the roots of plants are easy to rot, and the environment pollution cannot be treated after the plastic is discarded.
Most of the existing degradable flowerpots and other containers adopt straws, leaves and the like as fillers, and starch is a bonding forming material, so that the goal of harmless, stable and degradable is realized. The degradable greening container has the advantages that: the flower pot has good air permeability and water absorption, can be transported to the ground together with the plant fiber flower pot after being damaged and naturally decays, and then is absorbed by soil to become fertilizer for flowers and trees, without the need of secondary separation treatment of the traditional residual flowers and the plastic pot, thereby greatly reducing the labor cost, being economic and simple and reducing the cost. But the production of the molding material, namely modified starch, requires high temperature of 180-250 ℃ and high pressure, the molding of the modified starch depends on the temperature, the energy consumption and the cycle are both higher, and the price of the prepared degradable container is higher.
Disclosure of Invention
In order to solve the technical problems, the invention provides a degradable and fertility-increasing container for greening gardens, which has the advantages of good forming, long service time, degradation and no pollution to the environment; low production cost and simple operation.
The invention solves the technical problems and is characterized in that: the container formula comprises the following components in parts by weight: 10-25 parts of horn feather protein hydrolysate, 30-60 parts of filling material and 10-30 parts of water; the filling material is sludge and plant fiber, or plant fiber; in the optimized scheme, the filling material comprises 10-20 parts by weight of dry weight of sludge and 20-40 parts by weight of plant fiber material.
The ratio of the keratin hydrolysate to water is 1: 2.
the keratin hydrolysate is prepared by hydrolyzing waste feather stems and attached villi after the feathers are collected, and the mass percentage concentration of the keratin hydrolysate is 5-10%. The feather is chicken feather, duck feather or goose feather.
The sludge is residual sludge of a domestic sewage plant after harmless treatment, and is measured by absolute dry sludge. The residual sludge of the domestic sewage plant after harmless treatment refers to the sludge with the water content reduced to below 50 percent after front-end treatment of the sludge, including one of the processes of anaerobic digestion, aerobic composting, thermal hydrolysis, catalytic wet oxidation and the like.
The plant fiber is one or more than two of leaves, straws, wood powder or other plant fibers.
The particle size of the plant fiber is more than or equal to 50 meshes, and the plant fiber is subjected to toughening treatment, namely is soaked in alkali liquor. The plant fiber is toughened to avoid pilling and agglomeration.
According to the invention, the keratin hydrolysate is used as the forming agent of the degradable greening container, so that the cultivation waste can be recycled, and on the other hand, the keratin and the organic matters of the harmless sludge can improve the fertilizer efficiency of the container, and the container can be fixed and formed at low temperature because the keratin and the organic matters of the harmless sludge have strong viscosity, are nontoxic and harmless and have larger viscosity and foamability at normal temperature, so that the high temperature is not required in the curing and forming process, and only a certain forming pressure is required to be ensured.
The invention discloses a preparation method of a degradable and fertile greening garden container, which is characterized by comprising the following steps: the method comprises the following steps:
(1) preparing required raw materials;
(2) uniformly mixing the keratin hydrolysate with water to form diluted hydrolysate;
(3) spraying the diluted hydrolysate on the filling material while stirring to form a thick paste mixture;
(4) extrusion molding at normal temperature or 40-50 deg.C;
normal temperature is also called normal temperature or room temperature, and is generally defined as about 25 ℃.
The forming temperature is 40-50 ℃, even normal temperature can be adopted, and the energy consumption in the forming process of the degradable greening container is reduced. The low temperature treatment is carried out at normal temperature or 40-50 ℃.
(5) Drying and shaping the formed material under an acid atmosphere.
In the step (3), the water content of the thick paste mixture is 20-45%.
The hot pressing material in the invention is mainly paste, the temperature is utilized to mainly evaporate most of water in the material so as to form the material, and the final solidification depends on the neutralization reaction of acid gas and the material.
The drying temperature is normal temperature or 30-50 ℃.
The acidic atmosphere is an acidic gas formed in a closed space by a volatile acid (hydrochloric acid, acetic acid, benzoic acid, or the like). Through the process of removing a large amount of water by molding, the container has more micropores, and the acid gas and the alkaline material in the micropores carry out neutralization reaction, so that the keratin is hardened, and the strength of the container is enhanced. The acid gas can be recycled, and the temperature is required to be certain in the process mainly considering the volatilization of the acid and the evaporation of water generated by the acid-base neutralization reaction, and if the normal temperature is adopted, the air flow in the reaction zone needs to be increased.
The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing the wet feather and feather stem into particles or small sections with the length of 1-10 mm;
(2) hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 40-70 deg.C for 2-10 hr to water content of 85-95%, and stirring while hydrolyzing; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) ca (OH) is added into the hydrolysis tank based on the weight of feather stem2And NaHSO3The total amount is 2-10%, and the components are uniformly mixed by a low-speed stirrer which is not higher than the liquid level; wherein Ca (OH)2And NaHSO3The dosage ratio is 2.5-1: 1, Ca (OH)2With NaHSO3The addition ratio of (A) varies depending on the type of feather stem.
The horn feather protein hydrolysate contains a large amount of organic matters and nitrogen elements, can improve the fertility of plants, is a slow-release ecological fertilizer, when the fertilizer efficiency is released, the whole container automatically and slowly deforms and breaks to return to soil, and the degradation time of the container can be adjusted by regulating the content of the fertilizer.
The invention mainly adopts keratin hydrolysate as a forming material and adopts an extrusion or foaming mode to form the greening container.
The container has good water resistance after being formed, the container is not disintegrated after being soaked in weak acid or neutral solution with the pH value of 5-7 for about 10 days, and the container is disintegrated after being buried for 25 days under natural conditions, so that secondary pollution to the environment is avoided. Under the hot press and the die, the product can be made into a container with a thin layer of 0.2-1cm, the forming is good, and the yield is close to 100%. Low cost and high economic effect.
Detailed Description
The invention will be further illustrated with reference to specific embodiments:
example 1
The formula of the degradable and fertility-increasing container for greening gardens comprises the following components in parts by weight: 10 parts of horn feather protein hydrolysate with the mass concentration of 10 percent, 10 parts of wet oxidation outlet dry sludge as filling materials, 30 parts of dry leaf powder and 20 parts of water.
The feather keratin hydrolysate is prepared by hydrolyzing feather stems discarded after the feather is collected and attached down feather, and the feather is chicken feather. The sludge is the residual sludge of the domestic sewage plant after harmless treatment, and is measured by absolute dry sludge. The residual sludge of the domestic sewage plant after harmless treatment refers to the sludge with the water content reduced to below 50 percent after front-end treatment of the sludge, including one of the processes of anaerobic digestion, aerobic composting, thermal hydrolysis, catalytic wet oxidation and the like.
The particle size of the dry leaf powder is more than or equal to 50 meshes, and the dry leaf powder is soaked in alkali liquor to be toughened. The plant fiber is toughened to avoid pilling and agglomeration.
The preparation method of the container comprises the following steps:
(1) in the conditioning process, hydrolysate and water are uniformly mixed to form diluted hydrolysate; this water represents 96.7% of the total water.
(2) Uniformly spraying the diluted hydrolysate on the filling material while stirring, and controlling the whole water content to be 35-45% to form a thick paste mixture.
(3) Extrusion molding: the extrusion temperature of the molding apparatus was adjusted to 50 ℃.
The molding equipment is a hot-press molding machine, the hot-press time is 240s, and the pressure is 0.2-0.4 MPA.
(4) Drying the formed material in the acidic atmosphere of acetic acid, and finally shaping. The drying temperature is normal temperature.
The acidic atmosphere is an acidic gas formed in a closed space by a volatile acid (e.g., hydrochloric acid, acetic acid, benzoic acid, or the like). Through the process of removing a large amount of water by molding, the container has more micropores, and the acid gas and the alkaline material in the micropores carry out neutralization reaction, so that the keratin is hardened, and the strength of the container is enhanced. The acid gas can be recycled, and the temperature is required to be certain in the process mainly considering the volatilization of the acid and the evaporation of water generated by the acid-base neutralization reaction, and if the normal temperature is adopted, the air flow in the reaction zone needs to be increased.
The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing the wet fluff and feather stem into particles or small sections with the length of 1 mm;
(2) hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 40 ℃ for 10h, wherein the water content is 90%, and stirring while hydrolyzing; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) ca (OH) is added into the hydrolysis tank based on the weight of feather stem2And NaHSO3The total amount is 2 percent, and the components are uniformly mixed by a low-speed stirrer which is not higher than the liquid level; wherein Ca (OH))2With NaHSO3The addition ratio of (A) varies depending on the type of feather stem. Ca (OH)2And NaHSO3The dosage ratio is 2.5: 1.
example 2
The container formula comprises the following components in parts by weight: 20 parts of horn feather protein hydrolysate with the mass concentration of 5 percent, and filling materials of 15 parts of wet oxidation outlet dry sludge, 50 parts of straw powder and 30 parts of water. The grain size of the straw powder is more than or equal to 50 meshes, and the straw powder is subjected to toughening treatment, namely is soaked in alkali liquor.
The keratin hydrolysate is prepared by hydrolyzing feather stems and attached villi after the feathers are collected, and the mass percentage concentration of the keratin hydrolysate is 5-10%. The feather is chicken feather, duck feather or goose feather.
The plant fiber is one or more than two of leaves, straws, wood powder or other plant fibers.
The preparation method comprises the following steps:
(1) in the conditioning process, hydrolysate and water are uniformly mixed to form diluted hydrolysate; this water represents 95% of the total water.
(2) Uniformly spraying the diluted hydrolysate on the filling material while stirring, and controlling the whole water content to be 20% to form a thick paste mixture.
(3) Extrusion molding: the extrusion temperature of the molding apparatus was adjusted to 40 ℃.
(4) Drying the formed material in benzoic acid acidic atmosphere, and finally shaping.
The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing the wet feather and feather stem into particles or small sections with the length of 5 mm;
(2) hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 50 ℃ for 6h with the water content of 95% while stirring; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) adding 2-10% of Ca (OH)2 and NaHSO3 in total amount based on feather stalk weight into the hydrolysis tank, and mixing well with a low speed stirrer not higher than liquid level; wherein the addition ratio of Ca (OH)2 to NaHSO3 varies with the type of feather stem. The ratio of the Ca (OH)2 to the NaHSO3 is 1.5: 1.
example 3
The formula of the degradable and fertility-increasing container for greening gardens comprises the following components in parts by weight: 15 parts of horn feather protein hydrolysate with the mass concentration of 8 percent, and 60 parts of wood powder and 15 parts of water as filling materials. The granularity of the wood powder is more than or equal to 50 meshes, and the wood powder is subjected to toughening treatment, namely soaking treatment by adopting alkali liquor.
The preparation method comprises the following steps:
(1) the hydrolysis liquid and water are uniformly mixed in the tempering process to form the diluted hydrolysis liquid.
(2) Uniformly spraying the diluted hydrolysate on the filling material while stirring, and controlling the whole water content to be 40% to form a thick paste mixture.
(3) Extrusion molding: the extrusion temperature of the hot press forming machine was adjusted to 45 ℃.
(4) Drying the formed material in hydrochloric acid atmosphere, and finally shaping.
The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing the wet feather and feather stem into particles or small sections with the length of 10 mm;
(2) hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 70 ℃ for 2h, wherein the water content is 92%, and stirring while hydrolyzing; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) adding 10% of Ca (OH)2 and NaHSO3 in total amount based on the weight of feather stalk into the hydrolysis tank, and mixing uniformly by a low-speed stirrer not higher than the liquid level; wherein the addition ratio of Ca (OH)2 to NaHSO3 varies with the type of feather stem. The ratio of the Ca (OH)2 to the NaHSO3 is 1: 1.
example 4
The formula of the degradable and fertility-increasing container for greening gardens comprises the following components in parts by weight: 15 parts of horn feather protein hydrolysate with the mass concentration of 10 percent, and filling materials of 15 parts of hot hydrolysis outlet dry sludge, 10 parts of leaf powder, 20 parts of straw powder and 20 parts of water. The granularity is more than or equal to 50 meshes, and the toughening treatment is carried out, namely the soaking treatment is carried out by adopting alkali liquor.
The preparation method comprises the following steps:
(1) the hydrolysis liquid and water are uniformly mixed in the tempering process to form the diluted hydrolysis liquid. This represents 95.72% of the total water.
(2) Uniformly spraying the diluted hydrolysate on the filling material while stirring, and controlling the whole water content to be 30% to form a thick paste mixture.
(3) Extrusion molding: the extrusion temperature of the hot press molding machine was adjusted to 42 ℃.
(4) Drying the formed material in an acetic acid atmosphere, and finally shaping.
The straw keratin hydrolysate is prepared by hydrolyzing waste feather stems and attached villi after the feathers are collected, the mass percentage concentration of the keratin hydrolysate is 10%, and the feathers are goose feathers. The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing the wet feather and feather stem into particles or small sections with the length of 5 mm;
(2) hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 60 ℃ for 8h, wherein the water content is 90%, and stirring while hydrolyzing; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) ca (OH) is added into the hydrolysis tank based on the weight of feather stem2And NaHSO3The total amount is 5 percent, and the components are uniformly mixed by a low-speed stirrer which is not higher than the liquid level; wherein Ca (OH)2With NaHSO3The addition ratio of (A) varies depending on the type of feather stem. Ca (OH)2And NaHSO3The dosage proportion is 2: 1.
example 5
The container formula comprises the following components in parts by weight: 25 parts of horn feather protein hydrolysate with mass concentration of 6%, 30-60 parts of filling material and 10 parts of water; the filling material comprises 20 parts by mass of dry sludge and 40 parts by mass of wood powder. The granularity of the wood powder is more than or equal to 50 meshes, and the wood powder is subjected to toughening treatment, namely soaking treatment by adopting alkali liquor. The sludge is the residual sludge of the domestic sewage plant after harmless treatment, and is measured by absolute dry sludge.
The preparation method comprises the following steps:
(1) preparing required raw materials;
(2) uniformly mixing the keratin hydrolysate with water to form diluted hydrolysate;
(3) spraying the diluted hydrolysate on the filling material while stirring to form a thick paste mixture; the water content of the thick paste mixture was 25%.
(4) Extrusion molding, wherein the extrusion temperature is normal temperature;
(5) drying and shaping the formed material under the acidic atmosphere of hydrochloric acid. The drying temperature is normal temperature.
The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing the wet feather and feather stem into particles or small sections with the length of 6 mm;
(2) hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 45 ℃ for 6h with water content of 94% while stirring; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) ca (OH) is added into the hydrolysis tank based on the weight of feather stem2And NaHSO3The total amount is 4 percent, and the components are uniformly mixed by a low-speed stirrer which is not higher than the liquid level; wherein Ca (OH)2And NaHSO3The dosage proportion is 1: 1.
example 6
The container formula comprises the following components in parts by weight: 20 parts of a 10 mass% keratin hydrolysate, 30 parts of a filling material and 25 parts of water; the filling material consists of 10 parts by weight of dry sludge and 20 parts by weight of plant fiber material, wherein the plant fiber is leaves with the granularity of more than or equal to 50 meshes, and is subjected to toughening treatment, namely alkali liquor soaking treatment. The sludge is the residual sludge of the domestic sewage plant after harmless treatment, and is measured by absolute dry sludge.
The preparation method is characterized by comprising the following steps: the method comprises the following steps:
(1) preparing required raw materials;
(2) uniformly mixing the keratin hydrolysate with water to form diluted hydrolysate;
(3) spraying the diluted hydrolysate on the filling material while stirring to form a thick paste mixture; the water content of the thick paste mixture is 30%.
(4) Extrusion molding is carried out, and the extrusion temperature is 50 ℃.
(5) Drying and shaping the formed material under the acetic acid atmosphere. The drying temperature is normal temperature.
The preparation method of the horn feather protein hydrolysate comprises the following steps:
(1) shearing wet fluff and feather stalks of the feathers into particles or small sections with the length of 5 mm; the feather is duck feather.
(2) Hydrolyzing the keratin: adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 65 ℃ for 8h, wherein the water content is 90%, and stirring while hydrolyzing; heat can be provided by microwave, electricity and waste heat through different heat exchanger designs;
(3) ca (OH) is added into the hydrolysis tank based on the weight of feather stem2And NaHSO3The total amount is 5 percent, and the components are uniformly mixed by a low-speed stirrer which is not higher than the liquid level; wherein Ca (OH)2And NaHSO3The dosage proportion is 2: 1.
according to the invention, the keratin hydrolysate is used as the forming agent of the degradable greening container, so that the cultivation waste can be recycled, and on the other hand, the organic matter of the keratin can improve the fertilizer efficiency of the container, and the container can be fixed and formed at low temperature because the keratin has strong viscosity, is nontoxic and harmless and has larger viscosity and foamability at normal temperature, so that high temperature is not required in the curing and forming process, and only a certain forming pressure is required. The container is soaked in alkali liquor and disintegrated within 1 hour.
Experiment-degradable experiment
According to the contents of examples 1-5, 5 planar monolithic materials were prepared, buried in soil, examined for integrity after 3, 10, 25, 40, and 60 days, and the container began to break and lose its viscosity after 25 days, and disintegrated without secondary pollution to the environment. Because the microorganisms in the soil can feed on the keratin hydrolysate, the plants can directly use the elements in the sludge as nutrient elements.
The container manufactured by the invention is used for seedling culture, and the greenhouse experiment result of 1 month shows that the root system is tightly connected with the container, the fertilizer application is obviously reduced, the survival rate and the growth rate of the seedlings after the seedlings arrive in the field are higher than those of the plastic container, and the damage to the root system is small.
The sludge in the raw materials of the container has negative cost, the dry sludge is about 100 yuan per ton, the straws are about 250 yuan per ton, the keratin belongs to waste materials, the main expenditure is the medicament expenditure, and the cost of each container is less than 0.1 yuan. Low cost and high economic effect.
While the foregoing shows and describes the fundamental principles and principal features of the invention, together with the advantages thereof, the foregoing embodiments and description are illustrative only of the principles of the invention, and various changes and modifications can be made therein without departing from the spirit and scope of the invention, which will fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A container for afforestation gardens of degradable and gaining weight which characterized in that: the container formula comprises the following components in parts by weight: 10-25 parts of horn feather protein hydrolysate, 30-60 parts of filling material and 10-30 parts of water; the filling material is sludge and plant fiber, or plant fiber; the filling material in the optimized scheme comprises 10-20 parts by weight of dry weight of sludge and/or 20-40 parts by weight of plant fiber.
2. A container for afforestation garden as claimed in claim 1, which is degradable and fertile, wherein: the ratio of the keratin hydrolysate to water is 1: 2.
3. a container for afforestation gardens degradable and fertile according to claim 1 or 2, characterized in that: the keratin hydrolysate is prepared by hydrolyzing waste feather stems and attached villi after the feathers are collected, and the mass percentage concentration of the keratin hydrolysate is 5-10%.
4. A container for afforestation garden as claimed in claim 1, which is degradable and fertile, wherein: the sludge is residual sludge of a domestic sewage plant after harmless treatment.
5. A degradable and fertile afforestation garden container according to claim 4, characterized in that: the plant fiber is one or more than two of leaves, straws, wood powder or other plant fibers.
6. A degradable and fertile afforestation garden container according to claim 1 or 5, wherein: the particle size of the plant fiber is more than or equal to 50 meshes, and the plant fiber is subjected to toughening treatment, namely is soaked in alkali liquor.
7. A method for preparing a degradable and fertile afforestation garden container according to claim 1, characterized in that: the method comprises the following steps:
(1) preparing required raw materials;
(2) uniformly mixing the keratin hydrolysate with water to form diluted hydrolysate;
(3) spraying the diluted hydrolysate on the filling material while stirring to form a thick paste mixture;
(4) extrusion molding at normal temperature or 40-50 deg.C;
(5) drying and shaping the formed material under an acid atmosphere.
8. The method for preparing a degradable and fertile afforestation garden container according to claim 7, wherein the method comprises the following steps: in the step (3), the water content of the thick paste mixture is 20-45%.
9. The method for preparing a degradable and fertile afforestation garden container according to claim 7, wherein the method comprises the following steps: the drying temperature in the step (5) is normal temperature or 30-50 ℃.
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| CN202010015878.8A CN111170774A (en) | 2020-01-08 | 2020-01-08 | Formula and preparation method of degradable and weight-gaining container for greening gardens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010015878.8A CN111170774A (en) | 2020-01-08 | 2020-01-08 | Formula and preparation method of degradable and weight-gaining container for greening gardens |
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| CN111170774A true CN111170774A (en) | 2020-05-19 |
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| CN202010015878.8A Pending CN111170774A (en) | 2020-01-08 | 2020-01-08 | Formula and preparation method of degradable and weight-gaining container for greening gardens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023089513A1 (en) * | 2021-11-17 | 2023-05-25 | Stam Agro Nv | Method and use of protein-rich mixture |
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Application publication date: 20200519 |