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INVENTION
Russian Federation Patent RU2291164

METHOD disposal of waste containing animal proteins, AND DEVICE FOR ITS IMPLEMENTATION

METHOD disposal of waste containing animal proteins,
AND DEVICE FOR ITS IMPLEMENTATION

Name of the inventor: Zhirnokleev Igor (RU); Nefedov Boris K. (RU); Gorlov Evgeniy G. (RU); Korotkov Eduardovna Marina (RU); Alexander E. Antonov (RU)
The name of the patentee: Zhirnokleev Igor (RU); Korotkov Marina Eduardovna
Address for correspondence: 121165, Moscow, p / 15, "PPF-Eustis" pat.pov. A.E.Gruninoy
Starting date of the patent: 2005.06.08

The invention relates to the disposal of waste containing animal proteins. For waste containing animal proteins mixed waste water and alkali in a ratio of 1 :( 1.8-2.0) :( 0,09-0,46) prepared aqueous mixture is subjected to heat treatment at a temperature of 120-180 ° C for 25-90 minutes to obtain a liquid hydrolyzate. Depending upon the ratio of process parameters, a mixture of amino acids, or a mixture thereof with low molecular weight proteins or low molecular weight proteins. A device for implementing the method, which comprises a reactor 1 with a sealingly closing cover 6, which is connected by two conduits 8 and 9 located above it expander refrigerator 2, the decanter 15 with filter 4, a receiver 5 adsorber 17 and waste products.

DESCRIPTION OF THE INVENTION

The invention relates to the utilization of biohazardous waste containing animal proteins.

These wastes are solid and paste-like substances produced in the processing of animal products: scrapings of wet and dry collection of fur and leather industries, Gol'eva trimmings, waste sorting hides and substandard fur and raw hides, waste of hair ventilation and other types of fees in primary processing of wool, when dressing of fur in the production of milled products made of natural hair, waste of spinning wool, non-recyclable waste down and feather poultry farms, non-utilized patch and trimmings in the production of wool, fur and leather, collected waste and flotoshlamy generated during wastewater treatment of fur, leather, meat and poultry processing industries, but also the fallen animals, sheep and cattle.

A method is known waste containing animal protein, comprising the water-heat treatment in the presence of alkali to give the hydrolysis product (the USSR Inventor's Certificate №1496847, cl. B 09 B 3/00, publ. 1989 YG) [1].

However, animal protein hydrolysis process of this known method is long and the depth of their hydrolysis is not high enough: not provided a method of amino acids and / or low molecular weight peptides from recyclable waste.

A method is known waste containing animal protein, comprising the water-heat treatment in the presence of alkali to give the hydrolysis product (Patent USSR №1794089, cl. C 14 C 3/22, publ. 1993 YG) [2].

However, according to a known manner and do not provide sufficient depth of animal protein hydrolysis: a method does not lead to the obtaining of amino acids and / or low molecular weight peptides.

The closest to the proposed method is a method for disposing of waste containing animal protein, comprising the water-heat treatment in the presence of alkali (Patent RF №2021300, Cl. C 08 N 1/06, publ. 1994 YG) [3].

However, this known method does not provide a durable and deep hydrolysis of animal protein to obtain the amino acids and / or low molecular weight peptides.

A device for the disposal of waste containing natural polymers including a reactor equipped with a pipeline to supply steam return line used in the reactor steam and condensate return line from the reactor (copyright certificate of the USSR №1209146, cl. A 23 N 17/00, publ . 1986). [4]

This known device is used for the disposal of plant waste. It does not provide conditions for hydrolysis deep waste containing animal proteins to amino acids and / or low molecular weight peptides.

The technical result achieved by the present invention is to provide a deep hydrolysis of waste containing animal proteins to amino acids and / or low molecular weight peptides.

Said technical result is achieved by a method for waste containing animal proteins, providing for their hydro-thermal treatment in the presence of alkali to give the hydrolysis product, the distinguishing feature is that the treatment is carried out in compliance with the process parameters: a mixture of said waste with water and alkali in the ratio of 1 :( 1.8-2.0) :( 0,09-0,46) is treated at a temperature of 120-180 ° C for 25-90 min, while changing the parameters of said process hydrolysis alter the composition of the product and the ratio of said waste water and alkali of 1 :( 1.8-2.0) :( 0,38-0,46), temperature 160-180 ° C and a processing time of 25-30 minutes, a hydrolysis product as a hydrate of sodium or potassium salts of mixtures of amino acids, with a ratio of said waste water and alkali of 1 :( 1.8-2.0) :( 0,19-0,37), temperature 120-180 ° C and 25-90 min treatment time obtained hydrolysis product as a hydrate of sodium or potassium salts of mixtures of amino acids in a mixture with sodium hydrate or potassium salts of low molecular weight peptides, and with a ratio of said waste , water and alkali of 1 :( 1.8-2.0) :( 0.09-0.18), a temperature of 120-160 ° C and treatment time of 30-90 min to give the product as a hydrate of sodium or potassium salts of low molecular weight peptides.

Said technical result is achieved in an apparatus for disposing of waste containing animal proteins comprising a reactor disposed above it expander refrigerator, decanter filter receiver recycling products, wherein the reactor is provided with hermetically closing lid and piping for steam, ending at the bottom of the reactor holes, the reactor is connected to the expander fridge two pipelines - pipelines supplying the expander-fridge used in the reactor steam, connected to the top of the expander-fridge, and a pipe drain condensate from the expander-fridge in the reactor was connected to the bottom of the expander-fridge, and with an upper portion of the refrigerator-connected expander outlet conduit of gases.

In the particular case of the apparatus, the reactor may be set to two pivot bearings for rotation in a vertical plane and provided with a rotation drive, the feed pipe used in the vapor reactor expander refrigerator and a condensate drain pipe from the expander refrigerated reactor have flexible portions, and piping for supplying steam to the reactor ends a horizontal horseshoe-shaped or annular portion, in which there are openings.

In a particular embodiment a conduit for feeding steam to the reactor may have a flexible portion located outside the reactor.

In the particular case of an apparatus for supplying steam conduit into the reactor can pass through one of the hinge pin supports the reactor.

In the particular case of the reactor cover may be made circular and is provided with a cable-lifting mechanism. On top of the lid has a bracket for fixing the cable, which occupies an eccentric position in relation to the contour of the lid in plan.

In a particular embodiment, expander refrigerator can be provided with a cooling coil disposed in the housing.

In a particular embodiment decanter device may be made in form of a bath, and a lid provided with vertical partitions.

In a particular case, the device may be provided for absorbing the adsorption of gases, connected to a conduit connected to the upper part of the expander-refrigerator.

The invention is illustrated by the following drawings, where

METHOD disposal of waste containing animal proteins, AND DEVICE FOR ITS IMPLEMENTATION

1 is a schematic diagram of the device; Figure 2 - the pipeline end section supplying steam to the reactor; Figure 3 - an embodiment of the reactor feed steam conduit therein, having a flexible portion located outside the reactor.

1 shows the reactor 1, the expander refrigerator 2, 3 decanter filter 4 and receiver 5. Product recovery reactor 1 is provided with hermetically closing lid 6. The conduit 7 for supplying steam to the reactor, the conduit 8 for the steam used in the reactor 1, the expander refrigerator 2, and line 9 - for draining condensate from cooler 2, reamer in reactor 1. for removal of gases formed in the "reactor-expander refrigerator", line 10 is connected to the upper portion rasshiritelya- refrigerator 2.

As shown in the diagram (see FIG. 1), the reactor 1 is mounted on two pivot bearings 11 and is rotatable by the actuator 12. The steam supply duct 7 into the reactor 1 passes through one of the hinge pin supports 11. Inside reactor 1 the conduit 7 bent at right angles in the downward direction and ends with horizontal horseshoe or annular portion 13, which has holes or nozzles 14 are designed to spray jets of steam at the bottom of the reactor 1 (see FIG. 2).

Can supply steam to the reactor 1 through the pipe, on its wall located above the pivot bearings (see Fig. 3). In this particular case, the device in the area located outside the reactor, the conduit 7 must be made of a flexible material. This flexible portion may be made for example from rubber or rubber hose.

Decanter 3 is a bath provided with a cover 15 and vertical partitions.

The reactor cover 6 is circular and is provided with a cable-lifting mechanism (not shown in the diagram). On top of the lid 6 has a bracket 16 to which is attached the rope hoist. The bracket 16 takes a position eccentric relative to the contour of the lid 6 in plan view. Such fastening hoist cable to the cover 6 provides its inclination during lifting and better drainage of condensation from the bottom surface of the cavity of the reactor 1.

Expander refrigerator can be provided with cooling coils (coils not shown).

The device is provided with adsorber 17, intended for the absorption of gases, which is connected to a conduit 10 connected to the upper part of the refrigerator 2-expander.

Device operates as follows

The reactor 1 is poured water, is added and the alkali charged feedstock - waste containing animal proteins. By screwing bolts folding tightly closed lid reactor 1 via line 6 and 7, steam is introduced into the reactor 1. The presence of the end of the pipeline 7 horseshoe or annular portion 13 disposed horizontally in the lower region of the reactor 1, provides for uniform heating of the reaction mixture and uniform flow therein physico -chemical processes. Under the influence of steam in the reactor 1 mass is heated to the temperature required for hydrolysis of animal proteins. The vapor passes via line 8 to reactor 1 above the expander refrigerator 2. The condensate formed in cooler 2, reamer by cooling steam flows through line 9 back to the reactor 1. Thus there is a circulation of vapor and liquid in the "reactor extender -fridge". The reaction mixture is kept in circulation time necessary condition. Then, cut off the supply of steam to the reactor 1 is carried out before the termination of an excerpt dripping from the expander-fridge. The condensate for the swelling of the pipeline into the reactor 9 can be made of a transparent material or a conduit may be mounted clear "eye." After completion of the hydrolysis reactor is opened lid 6 1 water are added to it, stirred unreacted water mass and gradually turning the reactor 1 in a vertical plane, its contents is poured through a filter 4 to a decanter 3. The flexible supply piping portions allows discharging operation of the reaction mass without disconnecting them from one reactor.

Load operation a new portion of reactor feed stock, this feed steaming, high-temperature exposure, the reacted mass dilution with water, the mass discharge from the reactor, its filtration and decantation are repeated periodically. The resulting aqueous solution of the above operations, the liquid containing the hydrolyzate is accumulated in the receiver 5 used products.

The following examples illustrate the invention.

Example 1. Hydrolysis of fur production waste. The reactor is charged with 250 l 108 l of water in portions of 3 kg was added 22.8 kg of sodium hydroxide and then 60 kg of protein-containing waste (scrapings of wet and dry collection of fur and leather industries, waste sorting hides and substandard fur and skins), ramming waste to be treated if necessary. The ratio of waste water: the alkali is 1: 1.8: 0.38. Open steam supply valve, the reaction mass is heated prior to circulation through the line-expander refrigerator used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 180 ° C. When applying full weight to withstand steam circulation condition for 15 minutes. Shut off the steam to the reactor and held for 10 minutes to stop the circulation. Razbalchivayut reactor cover, water is added to a total volume of 200 l of the reaction mass and stirred the mass for 10 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous solution of hydrates of sodium salts of mixtures of amino acids (alanine, valine, glycine, leucine, isoleucine, proline, fenilalanana, oxoproline, serine, tyrosine, threonine, arginine, histidine, lysine, hydroxylysine, cysteine, cystine, metionona aspartic acid and glutamic acid) with an average molecular weight of 136 and a free alkali content of 0.08 mol / l.

Example 2. Hydrolysis of primary processing of wool waste, wool spinning and producing milled products made of natural hair, ventilation and other types of fees in primary processing of wool. The reactor was charged with 250 liters 120 liters of water, 2 kg portions of added 27.6 kg of potassium hydroxide and then 60 kg of waste containing animal proteins, ramming them if necessary. The ratio of waste water: the alkali is 1: 2.0: 0.46. Open steam supply valve, the reaction mass is heated prior to circulation through conduit feed-in refrigerator extender used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 160 ° C. When applying full weight to withstand steam circulation condition for 20 minutes. Shut off the steam to the reactor and held for 10 minutes to stop the circulation. Razbalchivayut reactor cover, water is added to a total volume of 200 l of the reaction mass and stirred the mass for 15 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous solution containing hydrates potassium salts of mixtures of amino acids (alanine, valine, glycine, leucine, isoleucine, proline, fenilalanana, oxoproline, serine, tyrosine, threonine, arginine, histidine, lysine, hydroxylysine, cysteine, cystine, metionona aspartic acid and glutamic acid) with an average molecular weight of 130 and a free alkali content of 0.075 mol / l.

Example 3. Carry out the hydrolysis of waste down and feather poultry farms. The reactor was charged with 250 liters 114 liters of water, 2 kg portions of 12 kg was added potassium hydroxide and then 60 kg of waste containing animal proteins, ramming them if necessary. Open steam supply valve, the reaction mass is heated prior to circulation through conduit feed-in refrigerator extender used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 120 ° C. The ratio of waste water: alkali is 1: 1.9: 0.19. When applying full weight to withstand steam circulation state for 75 minutes. Shut off the steam to the reactor and held for 15 minutes to stop the circulation. Razbalchivayut reactor lid was added 85 liters of water (to a total volume of 200 l of reaction mixture) and the mixture stirred for 15 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous hydrolysis product solution having an average molecular weight of 129 containing hydrates potassium salts of mixtures of amino acids (alanine, valine, glycine, leucine, isoleucine, proline, fenilalanana, oxoproline, serine, tyrosine, threonine, arginine, histidine, lysine, hydroxylysine, cysteine, cystine, metionona, aspartic acid and glutamic acid), 8.4 wt.%; hydrates potassium salts of low molecular weight peptides (di-, tri-, tetra- and pentapeptides) 3.8 wt.%; . Sodium hydroxide 0.05% by weight (free alkali content of 0.06 mol / l); the rest - water.

Example 4. Hydrolysis is carried out substandard furs and skins. The reactor was charged with 250 liters 114 liters of water, 2 kg portions of 13 kg was added sodium hydroxide and then 60 kg of waste containing animal proteins, ramming them if necessary. Open steam supply valve, the reaction mass is heated prior to circulation through conduit feed-in refrigerator extender used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 180 ° C. The ratio of waste water: alkali is 1: 1.9: 0.37. When applying full weight to withstand steam circulation condition for 15 minutes. Shut off the steam to the reactor and held for 10 minutes to stop the circulation. Razbalchivayut reactor lid was added 85 liters of water (to a total volume of 200 l of reaction mixture) and the mixture stirred for 15 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous hydrolysis product solution having an average molecular weight of 136 with a content of hydrates of sodium salts of mixtures of amino acids (alanine, valine, glycine, leucine, isoleucine, proline, fenilalanana, oxoproline, serine, tyrosine, threonine, arginine, histidine, lysine, hydroxylysine, cysteine, cystine, metionona, aspartic acid and glutamic acid), 8.4 wt.%; hydrates of sodium salts of low molecular weight peptides (di-, tri-, tetra- and pentapeptides) 3.8 wt% sodium hydroxide 0.05% by weight (free alkali content of 0.06 mol / l)..; the rest - water.

Example 5. Hydrolysis is carried out substandard furs and skins. The reactor was charged with 250 liters 114 liters of water, 2 kg portions of 5.5 kg was added potassium hydroxide and then 60 kg of waste containing animal proteins, ramming them if necessary. Open steam supply valve, the reaction mass is heated prior to circulation through conduit feed-in refrigerator extender used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 160 ° C. The ratio of waste water: the alkali is 1: 1.9: 0.09. When applying full weight to withstand steam circulation condition for 15 minutes. Shut off the steam to the reactor and held for 15 minutes to stop the circulation. Razbalchivayut reactor lid was added 85 liters of water (to a total volume of 200 l of reaction mixture) and the mixture stirred for 15 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous detoxifying agent with average molecular weight 138 potassium salt hydrates containing low molecular weight peptides: di-, tri-, tetra-, and pentapeptides, and free alkali content of 0.06 mol / l.

Example 6. Carry out the hydrolysis of waste down and feather poultry farms. The reactor was charged with 250 liters 114 liters of water, 2 kg portions of added 6 kg of sodium hydroxide and then 60 kg of waste containing animal proteins, ramming them if necessary. Open steam supply valve, the reaction mass is heated prior to circulation through conduit feed-in refrigerator extender used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 120 ° C. The ratio of waste water: the alkali is 1: 1.9: 0.18. When applying full weight to withstand steam circulation state for 75 minutes. Shut off the steam to the reactor and held for 15 minutes to stop the circulation. Razbalchivayut reactor lid was added 85 liters of water (to a total volume of 200 l of reaction mixture) and the mixture stirred for 15 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous solution of hydrolysis products with average molecular weight 139, containing hydrates of sodium salts of low molecular weight peptides: di-, tri-, tetra-, and pentapeptides, and free alkali content of 0.06 mol / l).

Example 7. Hydrolysis of fur production waste and dead animals. The reactor is charged with 250 l 108 l of water in portions of 3 kg was added 22.8 kg of sodium hydroxide and then 60 kg of protein-containing waste (fallen cat 4.5 kg and scrapings of wet and dry collection of fur and leather industries 55.5 kg) ramming them if necessary. The ratio of the raw materials: water: lye is 1: 1.8: 0.38. Open steam supply valve, the reaction mass is heated prior to circulation through conduit feed-in refrigerator extender used in the reactor for steam and condensate pipe from the expander to the reactor-cooler. The process is conducted at a temperature of 180 ° C. When applying full weight to withstand steam circulation condition for 15 minutes. Shut off the steam to the reactor and held for 10 minutes to stop the circulation. Razbalchivayut reactor cover, water is added to a total volume of 200 l of the reaction mass and stirred the mass for 15 min. The reaction mass was poured through a filter to a decanter. Prepared 2M aqueous solution of hydrates of sodium salts of mixtures of amino acids (alanine, valine, glycine, leucine, isoleucine, proline, fenilalanana, oxoproline, serine, tyrosine, threonine, arginine, histidine, lysine, hydroxylysine, cysteine, cystine, metionona aspartic acid and glutamic acid) with an average molecular weight of 135 and a free alkali content of 0.08 mol / l.

Thus, the inventive method and device for its implementation enables utilization of biologically hazardous waste containing animal proteins, their deep drawing hydrolysis to low molecular weight peptides and amino acids.

CLAIM

1. A method for disposal of waste containing animal proteins comprising their water-heat treatment in the presence of alkali to give the hydrolysis product, characterized in that the treatment is carried out in compliance with the process parameters: a mixture of said waste with water and alkali in the ratio of 1 :( 1.8-2.0) :( 0,09-0,46) is treated at a temperature of 120-180 ° C for 25-90 min.

2. The method of claim 1, wherein the water-heat treatment is performed at a ratio of waste containing animal protein, water and alkali of 1 :( 1.8-2.0) :( 0,38-0,46), temperature 160-180 ° C and a processing time of 25-30 minutes to yield the hydrolysis product in the form of hydrates sodium or potassium salts of mixtures of amino acids.

3. The method of claim 1, wherein the water-heat treatment is performed at a ratio of waste containing animal protein, water and alkali of 1 :( 1.8-2.0) :( 0,19-0,37), temperature 120-180 ° C and 25-90 min treatment time, the product is obtained as a hydrate of sodium or potassium salts of mixtures of amino acids in a mixture of hydrates of sodium or potassium salts of low molecular weight peptides.

4. The method of claim 1, wherein the water-heat treatment is performed at a ratio of waste containing animal protein, water and alkali of 1 :( 1.8-2.0) :( 0.09-0.18), a temperature of 120-160 ° C and treatment time of 30-90 min to give the hydrolysis product as a hydrate of sodium or potassium salts of low molecular weight peptides.

5. The apparatus for waste containing animal proteins comprising a reactor disposed above it expander refrigerator, a decanter and a receiver filter with product recycling, wherein the reactor is provided with a cover and hermetically closing the steam supply pipe ending in the bottom zone of the reactor openings reactor associated with the expander refrigerator with two conduits - conduit feeding the expander refrigerator used in the reactor vapor, connected to the upper part of the expander-cooler and piping condensate from the expander refrigerated reactor connected to the lower part of the expander-cooler, and an upper part expander-cooler outlet is connected to the pipeline, resulting gases.

6. Device according to claim 2, characterized in that the reactor is mounted on two pivot bearings rotatably in a vertical plane and provided with a rotation drive, the feed pipe reactor used in the vapor-expander refrigerator and condensate discharge pipe from the expander to the reactor-cooler are flexible portions and piping to supply steam to the reactor ends arranged horizontally horseshoe or annular portion, in which there are openings.

7. Apparatus according to claim 2, characterized in that the conduit for supplying steam to the reactor has a flexible portion located outside the reactor.

8. Apparatus according to claim 3, characterized in that the conduit for supplying steam to the reactor passes through one of the hinge pin supports the reactor.

9. Apparatus according to claim 2, characterized in that the reactor cover is circular and provided with rope lifting mechanism on top of the lid has a bracket for fixing the cable, which occupies an eccentric position in relation to the contour of the lid in plan.

10. The apparatus of claim 2, wherein the dilator-equipped refrigerator cooling coil disposed in the housing.

11. Apparatus according to claim 2, characterized in that the decanter is configured as a bath, and a lid provided with vertical partitions.

12. Apparatus according to claim 2, characterized in that it is provided for absorbing the adsorption of gases, connected to a conduit connected to the upper part of the expander-refrigerator.

print version
Publication date 20.02.2007gg