A biodegradation modification method for biochemical organic sludge

Abstract

The invention discloses a biodegradation modification method for biochemical organic sludge, belonging to the technical field of organic sludge treatment. The scheme utilizes nine microbial subgroups of extraction combination to complete the degradation of organic matter in biochemical organic sludge under high temperature and aerobic operating conditions; realizes the wall breaking and modified dehydration of biochemical organic sludge; in particular, it can target the structural chain breaking of various organic volatile acids, amino acids, humic acid, cellulose, layered structure colloids, organic sulfides, organic fluorides, heterocyclic compounds and other substances, and can achieve extremely high-efficiency reduction treatment of biochemical organic sludge. The final residue can be used as a resource for biomass fuel. Such special microbial flora is stimulated to have a strong metabolic capacity, and maintains life activities and flora proliferation by metabolizing organic matter, especially targeting the degradation of various odorous substances such as ammonia, humic acid, hydrogen sulfide and the like contained in the biochemical sludge, so that no odor can be achieved during the degradation process.

Description

Technical Field

[0001] The invention relates to the technical field of organic sludge treatment, and more specifically to a biodegradation modification method for biochemical organic sludge. Background Art

[0002] Traditional biochemical organic sludge drying technology, biochemical sludge with organic matter as the main component is easy to rot and stink, ammonia substances, volatile acids and other odorous substances in the sludge will form a large amount of odor pollution, at the same time, simply drying the water in the sludge consumes a lot of energy, and the residue after dehydration is hard and difficult to handle. Simple drying and dehydration technology is not feasible.

[0003] Aerobic fermentation technology of biochemical organic sludge, after deep dehydration, uses the original microorganisms of the biochemical sludge to prepare the nutrient ratio and then conducts an aerobic fermentation cycle of about one week. The sludge is finally processed into agricultural nutrient soil containing nutrients such as nitrogen, phosphorus, and organic matter. At present, aerobic composting technology has disadvantages such as insignificant sludge reduction and long working cycle. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a method for biodegradation and modification of biochemical organic sludge. This scheme utilizes nine microbial subpopulations of extraction combination under high temperature and aerobic operating conditions to complete the degradation of organic matter in biochemical organic sludge; to achieve wall breaking, modification and dehydration of biochemical organic sludge; in particular, it can target the structural chain breaking of various organic volatile acids, amino acids, humic acid, cellulose, layered structure colloids, organic sulfides, organic fluorides, heterocyclic compounds and other substances, and can achieve extremely high efficiency reduction treatment of biochemical organic sludge, and the final residue can be used as a resource for biomass fuel.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A biodegradation modification method for biochemical organic sludge comprises the following steps:

[0009] S1. Select microbial powders and mix them to form mixed powders. Activate the microbial powders at high temperature. Put wood chaff and rice husk into the hemispherical cavity of multiple auxiliary degradation balls and compact them to serve as a culture medium bed. Then put the auxiliary degradation balls with wood chaff and rice husk into the mixed powders and mix them thoroughly before taking them out to obtain modified degradation balls.

[0010] S2, fully stirring and mixing the modified degradation balls obtained in S1 with the biochemical organic sludge, and placing them into a degradation device to degrade the biochemical organic sludge;

[0011] S3. Add water to the degradation equipment to ensure the relative humidity of the internal environment of the degradation equipment, maintain a constant temperature of 55-60°C, supply air, stir, and biodegrade for 3-4 hours, accumulate batch processing residues, and process the residues into biomass fuel with high calorific value.

[0012] Furthermore, the mixed bacterial powder in S1 includes extreme thermophilic bacteria, Bacillus, thermophilic actinomycetes, Streptococcus, rod-shaped bacteria, Pseudomonas, cellulolytic bacteria, thermophilic fungi and thermophilic diplococci, and the mixing ratio thereof is 1:1:0.89:1:0.96:1:0.98:1:1.

[0013] Furthermore, the auxiliary degradation ball in S1 includes an elastic hemisphere, a plurality of evenly distributed through holes are opened at the outer end of the elastic hemisphere, a plurality of evenly distributed deformable elastic bars are connected to the upper end of the elastic hemisphere, a plurality of evenly distributed barbs are fixedly connected to the outer end of the deformable elastic bar, and an adsorption end is connected to the end of the deformable elastic bar away from the elastic hemisphere. The auxiliary degradation ball elastic hemisphere can more conveniently improve the combination of the mixed bacterial powder and the culture medium bed. At the same time, with the help of the through holes and the deformable elastic bars, the biochemical organic sludge can be further broken up when it is stirred in the degradation equipment, thereby improving the degradation efficiency of the biochemical organic sludge.

[0014] Furthermore, the biochemical organic sludge in S2 is dehydrated by a high-pressure plate frame before being mixed with the modified degradation balls, and the water content of the dehydrated biochemical organic sludge is 60%.

[0015] Furthermore, the elastic hemisphere is made of rubber material, and the diameter of the through hole is 2 mm.

[0016] Furthermore, the deformable spring bar is made of a shape memory alloy material, and the equilibrium temperature of the deformable spring bar is 40 degrees Celsius. By using the shape memory alloy material to make the deformable spring bar, the deformable spring bar can be deformed under high temperature conditions, thereby improving the degradation efficiency of biochemical organic sludge.

[0017] Furthermore, the adsorption end head is made of 400 series stainless steel material, and the surface of the adsorption end head is coated with anti-rust paint. By using 400 series stainless steel material to make the adsorption end head, the adsorption end head can have the effect of being attracted by a magnet, which makes it convenient to take out the auxiliary degradation balls from the residue. Beneficial Effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This scheme utilizes nine microbial subgroups of extraction combination under high temperature and aerobic operating conditions to complete the degradation of organic matter in biochemical organic sludge; achieves wall breaking and modified dehydration of biochemical organic sludge; in particular, it can target the structural chain breaking of various organic volatile acids, amino acids, humic acid, cellulose, layered colloids, organic sulfides, organic fluorides, heterocyclic compounds and other substances, and can achieve extremely high efficiency reduction treatment of biochemical organic sludge. The final residue can be used as a resource for biomass fuel.

[0020] (2) This special microbial flora is stimulated to develop a strong metabolic capacity, maintaining life activities and flora proliferation by metabolizing organic matter, especially for the degradation of various odorous substances such as ammonia, humic acid, hydrogen sulfide, etc. contained in biochemical sludge, thereby achieving odor-free degradation.

[0021] (3) At the same time, during the decomposition and metabolism process, this type of special microbial flora can synthesize various special enzymes to complete the enzymatic hydrolysis of complex macromolecules such as amino acids, cellulose, and long-chain fatty acids. The strong enzymatic hydrolysis ability can also complete the modification and breaking of the layered structure colloid and biological cell membrane of biochemical sludge, so that the intracellular bound water and capillary bound water are converted into free water, thereby achieving the effect of modifying and dehydrating the biochemical organic sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the auxiliary degradation ball part of the present invention;

[0023] Figure 2 It is a stereoscopic diagram of the auxiliary degradation ball part under high temperature state of the present invention;

[0024] Figure 3 This is a dynamic change diagram of the auxiliary degradation ball of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of part of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1 elastic hemisphere, 101 through hole, 102 deformable elastic strip, 103 barb, 104 adsorption terminal. DETAILED DESCRIPTION

[0028] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0031] A biodegradation modification method for biochemical organic sludge comprises the following steps:

[0032] S1. Select microbial powders and mix them to form mixed powders. Activate the microbial powders at high temperature. Put wood chaff and rice husk into the hemispherical cavity of multiple auxiliary degradation balls and compact them to serve as a culture medium bed. Then put the auxiliary degradation balls with wood chaff and rice husk into the mixed powders and mix them thoroughly before taking them out to obtain modified degradation balls.

[0033] S2, fully stirring and mixing the modified degradation balls obtained in S1 with the biochemical organic sludge, and placing them into a degradation device to degrade the biochemical organic sludge;

[0034] S3. Add water to the degradation equipment to ensure the relative humidity of the internal environment of the degradation equipment, maintain a constant temperature of 55-60°C, supply air, stir, and biodegrade for 3-4 hours, accumulate batch processing residues, and process the residues into biomass fuel with high calorific value.

[0035] The mixed bacterial powder in S1 includes extreme thermophiles, Bacillus, thermophilic actinomycetes, Streptococci, rod-shaped bacteria, Pseudomonas, cellulolytic bacteria, thermophilic fungi and thermophilic diplococci, and the mixing ratio is 1:1:0.89:1:0.96:1:0.98:1:1.

[0036] See also Figure 1-4The auxiliary degradation ball in S1 includes an elastic hemisphere 1, a plurality of evenly distributed through holes 101 are opened at the outer end of the elastic hemisphere 1, a plurality of evenly distributed deformable elastic bars 102 are connected to the upper end of the elastic hemisphere 1, a plurality of evenly distributed barbs 103 are fixedly connected to the outer end of the deformable elastic bar 102, and an adsorption terminal 104 is connected to the end of the deformable elastic bar 102 away from the elastic hemisphere 1. The auxiliary degradation ball elastic hemisphere 1 can more conveniently improve the combination of the mixed bacterial powder and the culture medium bed. At the same time, with the help of the through holes 101 and the deformable elastic bars 102, the biochemical organic sludge can be further broken up when the biochemical organic sludge is stirred in the degradation equipment, thereby improving the degradation efficiency of the biochemical organic sludge.

[0037] The biochemical organic sludge in S2 is dehydrated by high-pressure plate and frame before being mixed with the modified degradation balls. The moisture content of the dehydrated biochemical organic sludge is 60%.

[0038] See also Figure 1-4 The elastic hemisphere 1 is made of rubber material, the aperture of the through hole 101 is 2 mm, the deformable spring bar 102 is made of a shape memory alloy material, the equilibrium temperature of the deformable spring bar 102 is 40 degrees Celsius, and the deformable spring bar 102 can be deformed under high temperature conditions by using a shape memory alloy material, thereby improving the degradation efficiency of biochemical organic sludge. The adsorption end 104 is made of 400 series stainless steel material, and the surface of the adsorption end 104 is coated with anti-rust paint. By using 400 series stainless steel material to make the adsorption end 104, the adsorption end 104 can be attracted by a magnet, so that the auxiliary degradation ball can be taken out from the residue.

[0039] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A biodegradation modification method for biochemical organic sludge, characterized in that: The following steps are involved: S1. Select microbial powders and mix them to form mixed powders. Activate the microbial powders at high temperature. Put wood chaff and rice husk into the hemispherical cavity of multiple auxiliary degradation balls and compact them to serve as a culture medium bed. Then put the auxiliary degradation balls with wood chaff and rice husk into the mixed powders and mix them thoroughly before taking them out to obtain modified degradation balls. S2, fully stirring and mixing the modified degradation balls obtained in S1 with the biochemical organic sludge, and placing them into a degradation device to degrade the biochemical organic sludge; S3, adding water to the degradation equipment to ensure the relative humidity of the internal environment of the degradation equipment, maintaining a constant temperature of 55-60°C, supplying air, stirring, and biodegradation reaction for 3-4 hours, accumulating batch processing residues, and processing the residues into biomass fuel with high calorific value; the auxiliary degradation ball in S1 comprises an elastic hemisphere (1), the outer end of the elastic hemisphere (1) is provided with a plurality of evenly distributed through holes (101), the upper end of the elastic hemisphere (1) is connected to a plurality of evenly distributed deformation spring bars (102), the outer end of the deformation spring bar (102) is fixedly connected to a plurality of evenly distributed barbs (103), the end of the deformation spring bar (102) away from the elastic hemisphere (1) is connected to an adsorption terminal (104), the deformation spring bar (102) is made of a shape memory alloy material, and the equilibrium temperature of the deformation spring bar (102) is 40 degrees Celsius.

2. The biodegradation modification method of biochemical organic sludge according to claim 1, characterized in that: The mixed bacterial powder in S1 includes extreme thermophilic bacteria, Bacillus, thermophilic actinomycetes, streptococci, rod-shaped bacteria, pseudomonas, cellulolytic bacteria, thermophilic fungi and thermophilic diplococci, and the mixing ratio thereof is 1:1:0.89:1:0.96:1:0.98:1:

1.

3. The biodegradation modification method of biochemical organic sludge according to claim 1, characterized in that: The biochemical organic sludge in S2 is dehydrated by high-pressure plate and frame before being mixed with the modified degradation balls. The water content of the dehydrated biochemical organic sludge is 60%.

4. The biodegradation modification method of biochemical organic sludge according to claim 1, characterized in that: The elastic hemisphere (1) is made of rubber material, and the diameter of the through hole (101) is 2 mm.

5. The biodegradation modification method of biochemical organic sludge according to claim 1, characterized in that: The adsorption end head (104) is made of 400 series stainless steel material, and the surface of the adsorption end head (104) is coated with anti-rust paint.

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