阅读说明：本技术 一种养殖场沼液沼渣无害化处理方法 (Harmless treatment method for biogas slurry and biogas residues in farm ) 是由 宋海鹏 余姜 王玉敏 张金松 于 2021-01-08 设计创作，主要内容包括：本发明公开了一种养殖场沼液沼渣无害化处理方法,所述养殖场沼液沼渣无害化处理方法包括如下步骤：材料准备；混合搅拌,将准备的材料1加入基材0中,充分搅拌均匀,搅拌后,继续加入材料2,充分搅拌均匀,搅拌均匀后,继续加入材料3、材料4和材料5,充分搅拌均匀,形成固形混合物；检测准备,按时间检测,按生物有机肥标准进行检测,当水分达到约20％以下,会得到500千克左右的发酵产物。该种养殖场沼液沼渣无害化处理方法,方便简洁,节约能耗,解决了养殖场大量积存的沼液及猪牛粪尿造成的环保隐患和环保问题,又得到400千克富含氮、磷、碳源营养和有益菌的生物新材料。(The invention discloses a harmless treatment method of biogas slurry and biogas residues in a farm, which comprises the following steps: preparing materials; mixing and stirring, namely adding the prepared material 1 into the base material 0, fully and uniformly stirring, continuously adding the material 2 after stirring, fully and uniformly stirring, continuously adding the material 3, the material 4 and the material 5 after uniformly stirring, and fully and uniformly stirring to form a solid mixture; detection preparation, which is to detect according to time and biological organic fertilizer standard, and when the water content reaches below about 20%, about 500 kg of fermentation product can be obtained. The harmless treatment method for the biogas slurry and the biogas residues in the farm is convenient and simple, saves energy consumption, solves the environmental hidden danger and the environmental problem caused by a large amount of accumulated biogas slurry and pig and cattle manure urine in the farm, and obtains 400 kg of a biological new material rich in nitrogen, phosphorus, carbon source nutrition and beneficial bacteria.)

1. A harmless treatment method of biogas slurry and biogas residues in a farm is characterized by comprising the following steps: the harmless treatment method of the biogas slurry and the biogas residues in the farm comprises the following steps:

(1) preparing materials, namely taking one ton of biogas slurry or pig and cow dung urine with water content of about 90 percent as a base material 0, preparing 150 kg to 200 kg of crushed straw or shell powder with the mesh number of 10 meshes to 60 meshes as a material 1, and preparing 50 kg to 150 kg of fermented fiber biological floc as a material 2; preparing 1 kg of lactobacillus of 100 to 200 million/g as a material 3, 1 kg of taiyuan desilting as a material 4, and 1 kg of a bacillus-activated coagulant as a material 5;

(2) mixing and stirring, namely adding the prepared material 1 into the base material 0, fully and uniformly stirring, continuously adding the material 2 after stirring, fully and uniformly stirring, continuously adding the material 3, the material 4 and the material 5 after uniformly stirring, and fully and uniformly stirring to form a solid mixture;

(3) detection preparation, namely stacking the materials forming the solid mixture in a centralized manner, pricking a large number of through holes with the distance of 3-5 cm by using a strip-shaped tool with the distance of about 1 cm, recording the initial temperature, and performing heat preservation treatment when the temperature of the field environment is lower than 20 ℃;

(4) detecting according to time, and measuring and recording the depth temperature of 10, 20, 30, 40 and 50 centimeters in 24 hours; after 48 hours, continuing measuring the temperature and recording, when the temperature is obviously increased (above 10 ℃) compared with the initial temperature, turning the pile and continuously uniformly pricking the holes; after 72 hours, continuously measuring the temperature, wherein the temperature of a high-temperature point can reach more than 50 ℃; continuously turning and pricking holes; measuring the temperature continuously after the fourth day, wherein the temperature of a high-temperature point can reach 50-65 ℃; continuously turning and pricking holes; continuing the treatment from day 5 to day 15, wherein the high temperature point temperature is maintained at 50 ℃ to 65 ℃; ventilating and drying (preventing direct sunlight) on day 16, and adopting vacuum drying equipment during large-scale production;

(5) detecting according to the standard of the biological organic fertilizer, and obtaining about 500 kg of fermentation product when the water content reaches below about 20%; detect according to bio-organic fertilizer standard, actual index can reach: moisture not higher than 20% (detection criteria NY/T302-; the organic matter is not less than 55% (detection standard NY 525-2012); the total nitrogen is not less than 2 percent (the detection standard NY 525-2012); quick-acting phosphorus (mg/KG) is not lower than 20000 (detection standard NY/T300-1995); the effective viable count is not less than 1.0 x 1011 (pieces/g) (detection standard NY 227-; the fermentation product becomes a novel material rich in beneficial bacteria (mainly bacillus subtilis, lactobacillus, photosynthetic bacteria, actinomycetes, bacillus licheniformis, saccharomycetes, bacillus natto and the like), can be used as a base material to prepare water body purification products, aquaculture industry fertilizer water and bacteria supplementing products, soil improvement products and the like with higher added values, and has economic value far exceeding that of organic fertilizers and bio-organic fertilizers.

2. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: the material 4 in the step (1) is Taiyuan desilting, and is prepared by a plurality of bacillus subtilis, denitrifying bacteria, active enzyme, actinomycetes, photosynthetic bacteria PSB, peroxide and sodium type activated zeolite carriers according to a certain proportion, and the total number of microorganisms is not less than 15 hundred million/g.

3. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: the bacillus-activated coagulant used in the step (1) is a mixture of one or more of amorphous porous nano-porous silica, ultrafine multi-layer mica powder, monosilicic acid, ultrafine porous diatomite and other products for providing the trace elements, wherein the amorphous porous ultrafine silica is used as a main component, the silicon content is 10-40%, the carbon content is 0.01-30%, the calcium content is 0-5%, the magnesium content is 0-2%, the iron content is 0-2%, the strontium content is 0-0.1%, and the cobalt content is 0-0.1%, and the trace elements are mainly required for the growth and propagation of microorganisms.

4. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: about 10% of solid matters in the biogas slurry or the pig and cattle manure taken out in the step (1) are organic biogas residues.

5. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: the material 1 in the step (1) can be prepared by drying and crushing wastes such as roots, stems and leaves of wheat, corn, rice, peanut shells, beet and other planting industries.

6. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: and (3) adopting a stirrer as stirring equipment in the step (2).

7. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: the material centralized stacking position of the solid mixture in the step (3) is a fermentation bin or a simple cofferdam-built cement pool.

8. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: the heat preservation treatment in the step (3) can be covered by a PE film or other simple materials.

9. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: when a large amount of treatment is carried out in the step (3), the treatment can be carried out in a fermentation bin under aeration and turning conditions.

10. The harmless treatment method of the biogas slurry and the biogas residues in the farm according to claim 1, which is characterized in that: and (4) the equipment for detecting the temperature in the step (4) is an electronic temperature instrument.

Technical Field

The invention relates to a harmless treatment method for biogas slurry and biogas residue in a farm, in particular to a harmless treatment method for biogas slurry and biogas residue in a farm, and belongs to the technical field of application of harmless treatment methods for biogas slurry and biogas residue.

Background

The livestock farm is a place for collecting domesticated animals such as livestock and poultry or wild animals such as deer, musk, fox, mink, otter and quail in a certain area to uniformly breed and breed, and in recent years, farmers all over the country investigate and introduce the domesticated animals, so that considerable economic and social benefits are obtained, and the domesticated animals are highly praised by experts. The trust and the favorable comment of vast breeding friends are won by scientific management, excellent variety, reasonable price and good reputation.

Some farms, especially live pig farms, produce a large amount of solid-liquid mixed waste (including residues such as washing water, excrement and urine, residual bait, disinfectant) every day, wherein the moisture content often reaches more than 80%, and one pig is from the piglet to the slaughter, produces about 4 tons of pollution waste on average, and traditional processing mode, solid after solid-liquid separation is fermented and is made into organic fertilizer: in general, medium and small-sized pig farms adopt solid-liquid separation after centralized collection, methane generation technology and the like; a medium-large farm adopts a biochemical environment-friendly treatment device; after biogas is generated through solid-liquid separation and fermentation, the biogas is further biochemically treated and then is intensively stored in a biogas slurry storage tank (a large amount of biogas residues can be generated after sedimentation is placed), the existing environment-friendly treatment technology of the farm has more defects, the COD of the biogas slurry generated after the treatment of culture pollutants often exceeds more than 600, the discharge requirement of the biogas slurry as irrigation water cannot be met, and a large amount of biogas residues can be generated after the biogas slurry is stored in the biogas slurry tank, so that the environment-friendly burden of a culture unit is realized. Therefore, the harmless treatment method of the biogas slurry and the biogas residues in the farm is provided aiming at the problems.

Disclosure of Invention

The invention aims to solve the problems and provide a harmless treatment method for biogas slurry and biogas residues in a farm.

The invention realizes the aim through the following technical scheme, and provides a harmless treatment method of biogas slurry and biogas residues in a farm, which comprises the following steps:

(1) preparing materials, namely taking one ton of biogas slurry or pig and cow dung urine with water content of about 90 percent as a base material 0, preparing 150 kg to 200 kg of crushed straw or shell powder with the mesh number of 10 meshes to 60 meshes as a material 1, and preparing 50 kg to 150 kg of fermented fiber biological floc as a material 2; preparing 1 kg of lactobacillus of 100 to 200 million/g as a material 3, 1 kg of taiyuan desilting as a material 4, and 1 kg of a bacillus-activated coagulant as a material 5;

(2) mixing and stirring, namely adding the prepared material 1 into the base material 0, fully and uniformly stirring, continuously adding the material 2 after stirring, fully and uniformly stirring, continuously adding the material 3, the material 4 and the material 5 after uniformly stirring, and fully and uniformly stirring to form a solid mixture;

(3) detection preparation, namely stacking the materials forming the solid mixture in a centralized manner, pricking a large number of through holes with the distance of 3-5 cm by using a strip-shaped tool with the distance of about 1 cm, recording the initial temperature, and performing heat preservation treatment when the temperature of the field environment is lower than 20 ℃;

(4) detecting according to time, and measuring and recording the depth temperature of 10, 20, 30, 40 and 50 centimeters in 24 hours; after 48 hours, continuing measuring the temperature and recording, when the temperature is obviously increased (above 10 ℃) compared with the initial temperature, turning the pile and continuously uniformly pricking the holes; after 72 hours, continuously measuring the temperature, wherein the temperature of a high-temperature point can reach more than 50 ℃; continuously turning and pricking holes; measuring the temperature continuously after the fourth day, wherein the temperature of a high-temperature point can reach 50-65 ℃; continuously turning and pricking holes; continuing the treatment from day 5 to day 15, wherein the high temperature point temperature is maintained at 50 ℃ to 65 ℃; ventilating and drying (preventing direct sunlight) on day 16, and adopting vacuum drying equipment during large-scale production;

(5) detecting according to the standard of the biological organic fertilizer, and obtaining about 500 kg of fermentation product when the water content reaches below about 20%; detect according to bio-organic fertilizer standard, actual index can reach: moisture not higher than 20% (detection criteria NY/T302-; organic matter is not less than 55% (detection standard NY 525-2012); the total nitrogen is not less than 2 percent (the detection standard NY 525-2012); quick-acting phosphorus (mg/KG) is not lower than 20000 (detection standard NY/T300-1995); the effective viable count is not less than 1.0 x 1011 (pieces/g) (detection standard NY 227-; the fermentation product becomes a novel material rich in beneficial bacteria (mainly bacillus subtilis, lactobacillus, photosynthetic bacteria, actinomycetes, bacillus licheniformis, saccharomycetes, bacillus natto and the like), can be used as a base material to prepare water body purification products, aquaculture industry fertilizer water and bacteria supplementing products, soil improvement products and the like with higher added values, and has economic value far exceeding that of organic fertilizers and bio-organic fertilizers.

Preferably, the material 4 in the step (1) is Taiyuan desilting, which is prepared from various bacillus subtilis, denitrobacterium, active enzyme, actinomycetes, photosynthetic bacteria PSB, peroxide and a sodium type activated zeolite carrier according to a certain proportion, and the total number of microorganisms is not less than 15 hundred million/g.

Preferably, the bacillus-activating coagulant used in step (1) is a mixture of one or more of amorphous porous ultrafine silica, carbon 0.01-30%, calcium 0-5%, magnesium 0-2%, iron 0-2%, strontium 0-0.1%, and cobalt 0-0.1%, which are essential trace elements for growth and reproduction of microorganisms, and other products providing the trace elements.

Preferably, about 10% of solid matters in the biogas slurry or the pig and cattle manure taken out in the step (1) are organic biogas residues.

Preferably, the material 1 in the step (1) can be prepared by drying and crushing wastes such as roots, stems and leaves of wheat, corn, rice, peanut shells, beet and other planting industries.

Preferably, the stirring device in the step (2) adopts a stirrer.

Preferably, the material collecting and stacking place of the solid mixture in the step (3) is a fermentation bin or a simple cement pond with a cofferdam.

Preferably, the heat preservation treatment in the step (3) can be covered by a PE film or other simple materials.

Preferably, when the bulk treatment is carried out in the step (3), the treatment can be carried out in a fermentation bin under aeration and turning conditions.

Preferably, the device for detecting the temperature in the step (4) is an electronic thermometer.

The invention has the beneficial effects that: the harmless treatment method for biogas slurry and biogas residues in the farm is convenient and simple, saves energy consumption, solves the environmental hidden danger and the environmental problem caused by a large amount of biogas slurry and pig and cow dung urine in the farm, obtains 400 kilograms of novel biological materials rich in nitrogen, phosphorus, carbon source nutrition and beneficial bacteria, can be used as a substrate for manufacturing water purification materials, fertilizer water, water purification products, soil remediation products and the like, and simultaneously utilizes the planting industry waste straws and the like, really realizes the green comprehensive cyclic utilization of planting and breeding wastes, saves time, improves efficiency, reduces cost, makes the environment pollution products into new products which can be recycled for environment restoration and planting and breeding industries after harmless treatment, has good market benefits and is convenient to popularize.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

a harmless treatment method for biogas slurry and biogas residues in a farm comprises the following steps:

(1) preparing materials, namely taking one ton of biogas slurry or pig and cow dung urine with water content of about 90 percent as a base material 0, preparing 150 kg to 200 kg of crushed straw or shell powder with the mesh number of 10 meshes to 60 meshes as a material 1, and preparing 50 kg to 150 kg of fermented fiber biological floc as a material 2; preparing 1 kg of lactobacillus of 100 to 200 million/g as a material 3, 1 kg of taiyuan desilting as a material 4, and 1 kg of a bacillus-activated coagulant as a material 5;

(2) mixing and stirring, namely adding the prepared material 1 into the base material 0, fully and uniformly stirring, continuously adding the material 2 after stirring, fully and uniformly stirring, continuously adding the material 3, the material 4 and the material 5 after uniformly stirring, and fully and uniformly stirring to form a solid mixture;

(3) detection preparation, namely stacking the materials forming the solid mixture in a centralized manner, pricking a large number of through holes with the distance of 3-5 cm by using a strip-shaped tool with the distance of about 1 cm, recording the initial temperature, and performing heat preservation treatment when the temperature of the field environment is lower than 20 ℃;

(4) detecting according to time, and measuring and recording the depth temperature of 10, 20, 30, 40 and 50 centimeters in 24 hours; after 48 hours, continuing measuring the temperature and recording, when the temperature is obviously increased (above 10 ℃) compared with the initial temperature, turning the pile and continuously uniformly pricking the holes; after 72 hours, continuously measuring the temperature, wherein the temperature of a high-temperature point can reach more than 50 ℃; continuously turning and pricking holes; measuring the temperature continuously after the fourth day, wherein the temperature of a high-temperature point can reach 50-65 ℃; continuously turning and pricking holes; continuing the treatment from day 5 to day 15, wherein the high temperature point temperature is maintained at 50 ℃ to 65 ℃; ventilating and drying (preventing direct sunlight) on day 16, and adopting vacuum drying equipment during large-scale production;

(5) detecting according to the standard of the biological organic fertilizer, and obtaining about 500 kg of fermentation product when the water content reaches below about 20%; detect according to bio-organic fertilizer standard, actual index can reach: moisture not higher than 20% (detection criteria NY/T302-; organic matter is not less than 55% (detection standard NY 525-2012); the total nitrogen is not less than 2 percent (the detection standard NY 525-2012); quick-acting phosphorus (mg/KG) is not lower than 20000 (detection standard NY/T300-1995); the effective viable count is not less than 1.0 x 1011 (pieces/g) (detection standard NY 227-; the fermentation product becomes a novel material rich in beneficial bacteria (mainly bacillus subtilis, lactobacillus, photosynthetic bacteria, actinomycetes, bacillus licheniformis, saccharomycetes, bacillus natto and the like), can be used as a base material to prepare water body purification products, aquaculture industry fertilizer water and bacteria supplementing products, soil improvement products and the like with higher added values, and has economic value far exceeding that of organic fertilizers and bio-organic fertilizers.

Preferably, the material 4 in the step (1) is Taiyuan desilting, which is prepared from various bacillus subtilis, denitrobacterium, active enzyme, actinomycetes, photosynthetic bacteria PSB, peroxide and a sodium type activated zeolite carrier according to a certain proportion, and the total number of microorganisms is not less than 15 hundred million/g.

Preferably, the bacillus-activating coagulant used in step (1) is a mixture of one or more of amorphous porous ultrafine silica, carbon 0.01-30%, calcium 0-5%, magnesium 0-2%, iron 0-2%, strontium 0-0.1%, and cobalt 0-0.1%, which are essential trace elements for growth and reproduction of microorganisms, and other products providing the trace elements.

Preferably, about 10% of solid matters in the biogas slurry or the pig and cattle manure taken out in the step (1) are organic biogas residues.

Preferably, the material 1 in the step (1) can be prepared by drying and crushing wastes such as roots, stems and leaves of wheat, corn, rice, peanut shells, beet and other planting industries.

Preferably, the stirring device in the step (2) adopts a stirrer.

Preferably, the material collecting and stacking place of the solid mixture in the step (3) is a fermentation bin or a simple cement pond with a cofferdam.

Preferably, the heat preservation treatment in the step (3) can be covered by a PE film or other simple materials.

Preferably, when the bulk treatment is carried out in the step (3), the treatment can be carried out in a fermentation bin under aeration and turning conditions.

Preferably, the device for detecting the temperature in the step (4) is an electronic thermometer.

The harmless treatment method of the biogas slurry and the biogas residues in the farm is convenient and simple, saves energy consumption, solves the environmental hidden danger and the environmental problem caused by a large amount of accumulated biogas slurry and pig and cow dung urine in the farm, obtains 400 kg of biological new materials rich in nitrogen, phosphorus, carbon source nutrition and beneficial bacteria, can be used as a substrate to manufacture water purification materials, fertilizer water and water purification products, soil restoration products and the like, simultaneously utilizes the planting industry waste straws and the like, and really realizes the green comprehensive cyclic utilization of planting and breeding wastes.

Example two:

a harmless treatment method for biogas slurry and biogas residues in a farm comprises the following steps:

(1) preparing materials, namely taking one ton of biogas slurry or pig and cow dung urine with water content of about 90 percent as a base material 0, preparing 150 kg to 200 kg of crushed straw or shell powder with the mesh number of 10 meshes to 60 meshes as a material 1, and preparing 50 kg to 150 kg of fermented fiber biological floc as a material 2; preparing 1 kg of lactobacillus of 100 to 200 million/g as a material 3, 1 kg of taiyuan desilting as a material 4, and 1 kg of a bacillus-activated coagulant as a material 5;

(2) mixing and stirring, namely adding the prepared material 1 into the base material 0, fully and uniformly stirring, continuously adding the material 2 after stirring, fully and uniformly stirring, continuously adding the material 3, the material 4 and the material 5 after uniformly stirring, and fully and uniformly stirring to form a solid mixture;

(3) detection preparation, namely stacking the materials forming the solid mixture in a centralized manner, pricking a large number of through holes with the distance of 3-5 cm by using a strip-shaped tool with the distance of about 1 cm, recording the initial temperature, and performing heat preservation treatment when the temperature of the field environment is lower than 20 ℃;

(4) detecting according to time, and measuring and recording the depth temperature of 10, 20, 30, 40 and 50 centimeters in 24 hours; after 48 hours, continuing measuring the temperature and recording, when the temperature is obviously increased (above 10 ℃) compared with the initial temperature, turning the pile and continuously uniformly pricking the holes; after 72 hours, continuously measuring the temperature, wherein the temperature of a high-temperature point can reach more than 50 ℃; continuously turning and pricking holes; measuring the temperature continuously after the fourth day, wherein the temperature of a high-temperature point can reach 50-65 ℃; continuously turning and pricking holes; continuing the treatment from day 5 to day 15, wherein the high temperature point temperature is maintained at 50 ℃ to 65 ℃; ventilating and drying (preventing direct sunlight) on day 16, and adopting vacuum drying equipment during large-scale production;

(5) detecting according to the standard of the biological organic fertilizer, and obtaining about 500 kg of fermentation product when the water content reaches below about 20%; detect according to bio-organic fertilizer standard, actual index can reach: moisture not higher than 20% (detection criteria NY/T302-; organic matter is not less than 55% (detection standard NY 525-2012); the total nitrogen is not less than 2 percent (the detection standard NY 525-2012); quick-acting phosphorus (mg/KG) is not lower than 20000 (detection standard NY/T300-1995); the effective viable count is not less than 1.0 x 1011 (pieces/g) (detection standard NY 227-; the fermentation product becomes a novel material rich in beneficial bacteria (mainly bacillus subtilis, lactobacillus, photosynthetic bacteria, actinomycetes, bacillus licheniformis, saccharomycetes, bacillus natto and the like), can be used as a base material to prepare water body purification products, aquaculture industry fertilizer water and bacteria supplementing products, soil improvement products and the like with higher added values, and has economic value far exceeding that of organic fertilizers and bio-organic fertilizers.

Preferably, the material 4 in the step (1) is Taiyuan desilting, which is prepared from various bacillus subtilis, denitrobacterium, active enzyme, actinomycetes, photosynthetic bacteria PSB, peroxide and a sodium type activated zeolite carrier according to a certain proportion, and the total number of microorganisms is not less than 15 hundred million/g.

Preferably, the bacillus-activating coagulant used in step (1) is a mixture of one or more of amorphous porous ultrafine silica, carbon 0.01-30%, calcium 0-5%, magnesium 0-2%, iron 0-2%, strontium 0-0.1%, and cobalt 0-0.1%, which are essential trace elements for growth and reproduction of microorganisms, and other products providing the trace elements.

Preferably, about 10% of solid matters in the biogas slurry or the pig and cattle manure taken out in the step (1) are organic biogas residues.

Preferably, the material 1 in the step (1) can be prepared by drying and crushing wastes such as roots, stems and leaves of wheat, corn, rice, peanut shells, beet and other planting industries.

Preferably, the stirring device in the step (2) adopts a stirrer.

Preferably, the material collecting and stacking place of the solid mixture in the step (3) is a fermentation bin or a simple cement pond with a cofferdam.

Preferably, the heat preservation treatment in the step (3) can be covered by a PE film or other simple materials.

Preferably, when the bulk treatment is carried out in the step (3), the treatment can be carried out in a fermentation bin under aeration and turning conditions.

Preferably, the device for detecting the temperature in the step (4) is an electronic thermometer.

The method for harmlessly treating the biogas slurry and the biogas residues in the farm saves time, improves efficiency, reduces cost, makes environment pollution products into new products which can be recycled in the environment restoration and planting and breeding industries after harmlessly treating the environment pollution products, and has good market benefit and convenient popularization.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.