1. An additive for improving the stability of a composite carbon source, which is characterized in that: comprises sodium acetate, potassium acetate, methanol, ethanol, glycerol, catalytic enzyme, purifying agent and water;

the weight parts of the sodium acetate in the additive are 25-35, the weight parts of the potassium acetate in the additive are 2-4, the weight parts of the methanol in the additive are 5-15, the weight parts of the ethanol in the additive are 1-3, the weight parts of the glycerol in the additive are 12-18, the weight parts of the catalytic enzyme in the additive are 3-7, the weight parts of the purifying agent in the additive are 3-7, and the weight parts of the water in the additive are 25-35.

2. The additive for improving the stability of a complex carbon source as claimed in claim 1, wherein: the weight portion of the sodium acetate in the additive is 30 portions, the weight portion of the potassium acetate in the additive is 3 portions, the weight portion of the methanol in the additive is 10 portions, the weight portion of the ethanol in the additive is 2 portions, the weight portion of the glycerol in the additive is 15 portions, the weight portion of the catalytic enzyme in the additive is 5 portions, the weight portion of the purifying agent in the additive is 5 portions, and the weight portion of the water in the additive is 30 portions.

3. The additive for improving the stability of a complex carbon source as claimed in claim 1, wherein: the sodium acetate is white crystalline powdered sodium acetate trihydrate before blending.

4. The additive for improving the stability of a complex carbon source as claimed in claim 1, wherein: the methanol concentration before blending was 99%.

5. The additive for improving the stability of a complex carbon source as claimed in claim 1, wherein: the concentration of ethanol before blending was 99%.

6. The additive for improving the stability of a complex carbon source as claimed in claim 1, wherein: the catalytic enzyme is one or more of saccharifying enzyme, pectin lyase, polygalacturonase, pectate lyase and pectinesterase.

7. The additive for improving the stability of a complex carbon source as claimed in claim 1, wherein: the purifying agent comprises 40% of activated carbon, 40% of flocculating agent and 20% of aromatic.

8. The additive for improving the stability of a complex carbon source as claimed in claim 7, wherein: the flocculant is one or more of polyaluminium chloride, polyaluminium sulfate, polyferric chloride and polyferric sulfate.

9. A preparation method of an additive for improving the stability of a composite carbon source is characterized by comprising the following steps: the preparation method of the additive capable of improving the stability of the composite carbon source comprises the following steps:

s1, adding weighed water into the reaction kettle;

s2, adding methanol and ethanol into S1 water at a constant speed of 1-1.5mL/S, and stirring uniformly;

s3, adding weighed sodium acetate and potassium acetate into the mixture of S2 and stirring uniformly;

s4, adding glycerol into the mixture of S3 at a constant speed and stirring uniformly;

s5, preparing a purifying agent, and uniformly mixing the activated carbon, the flocculating agent and the aromatic agent in proportion;

s6, adding the purifying agent prepared in the S5 into the mixture of the S4 and stirring uniformly;

s7, adding catalytic enzyme into the mixture of S6, stirring uniformly,

and S8, standing the mixed agent after blending to form an additive finished product capable of improving the stability of the composite carbon source, and packaging the additive finished product in barrels.

Background

With the continuous and rapid development of Chinese economy, the problem of environmental pollution is highlighted, wherein sewage discharge is a big problem restricting the economic development and the human environment. The composite carbon source can promote the rapid propagation of denitrifying and denitrifying heterotrophic bacteria, improve the purification capacity of microorganisms, the treatment capacity of a biochemical system and the impact resistance, is mainly used for sewage treatment, and can be added into a mediation tank for sewage treatment to well increase the reaction speed and effect of parameters such as COD (chemical oxygen demand) and the like.

The fruit and vegetable garbage contains high sugar, cellulose and hemicellulose, so that the carbon source is rich, and the utilization value is high. The composite carbon source is prepared by utilizing the fruit and vegetable garbage, so that the fruit and vegetable garbage can be recycled, the COD (chemical oxygen demand) of the composite carbon source can be improved, and a sufficient supplementary carbon source is provided for a sewage treatment plant, so that the sewage purification effect is improved.

Due to the characteristics of the composite carbon source, the stability of the composite carbon source is insufficient, various microorganisms can be bred, and the storage period of the composite carbon source is greatly shortened, so that an additive capable of improving the stability of the composite carbon source needs to be developed, the composite carbon source has higher stability, and the storage period of the composite carbon source is prolonged.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the additive for improving the stability of the composite carbon source and the preparation method thereof. Methanol and ethanol have strong permeation, and can permeate into microorganisms to inactivate microbial cell proteins or destroy and dissolve microbial cells, so that the stability of the composite carbon source can be further improved.

(II) technical scheme

In order to solve the technical problems, the invention provides the following technical scheme: an additive for improving the stability of a composite carbon source comprises sodium acetate, potassium acetate, methanol, ethanol, glycerol, catalytic enzyme, a purifying agent and water;

in the invention, the weight parts of sodium acetate in the additive are 25-35, the weight parts of potassium acetate in the additive are 2-4, the weight parts of methanol in the additive are 5-15, the weight parts of ethanol in the additive are 1-3, the weight parts of glycerol in the additive are 12-18, the weight parts of catalytic enzyme in the additive are 3-7, the weight parts of purifying agent in the additive are 3-7, and the weight parts of water in the additive are 25-35.

In a preferred embodiment of the present invention, the additive comprises 30 parts by weight of sodium acetate, 3 parts by weight of potassium acetate, 10 parts by weight of methanol, 2 parts by weight of ethanol, 15 parts by weight of glycerol, 5 parts by weight of catalytic enzyme, 5 parts by weight of scavenger and 30 parts by weight of water.

In a preferred embodiment of the present invention, the sodium acetate is white crystalline powdery sodium acetate trihydrate before blending.

In a preferred embodiment of the present invention, the concentration of methanol before blending is 99%.

In a preferred embodiment of the present invention, the concentration of ethanol before blending is 99%.

In a preferred embodiment of the present invention, the catalytic enzyme is one or more of saccharifying enzyme, pectin lyase, polygalacturonase, pectate lyase, and pectinesterase.

As a preferable scheme of the invention, the purifying agent comprises 40% of activated carbon, 40% of flocculating agent and 20% of flavoring agent.

As a preferable scheme of the invention, the flocculating agent is one or more of polyaluminium chloride, polyaluminium sulfate, polyferric chloride and polyferric sulfate.

A preparation method of an additive for improving the stability of a composite carbon source comprises the following steps:

s1, adding weighed water into the reaction kettle;

s2, adding methanol and ethanol into S1 water at a constant speed of 1-1.5mL/S, and stirring uniformly;

s3, adding weighed sodium acetate and potassium acetate into the mixture of S2 and stirring uniformly;

s4, adding glycerol into the mixture of S3 at a constant speed and stirring uniformly;

s5, preparing a purifying agent, and uniformly mixing the activated carbon, the flocculating agent and the aromatic agent in proportion;

s6, adding the purifying agent prepared in the S5 into the mixture of the S4 and stirring uniformly;

s7, adding catalytic enzyme into the mixture of S6, stirring uniformly,

and S8, standing the mixed agent after blending to form an additive finished product capable of improving the stability of the composite carbon source, and packaging the additive finished product in barrels.

(III) advantageous effects

Compared with the prior art, the invention provides the additive for improving the stability of the composite carbon source and the preparation method thereof, and the additive has the following beneficial effects:

1. through the blending of sodium acetate and potassium acetate, the osmotic pressure of the microorganisms is increased, so that the microorganisms in the composite carbon source lose activity, and the stability of the composite carbon source is improved.

2. The protein of the microorganism is denatured and inactivated by the bactericidal action of methanol and ethanol, or the protein permeates into the microbial cells to dissolve the microbial cells, so that the stability of the composite carbon source is further improved.

3. The biological enzyme is arranged, so that the decomposition of sugar and cellulose in the composite carbon source can be promoted, and the COD in the composite carbon source is further improved.

4. The purifying agent is arranged, so that the composite carbon source can be kept clear, and the purifying capacity of the sewage can be further improved by the composite carbon source containing the purifying agent.

Drawings

FIG. 1 shows the steps of the method for preparing the additive for improving the stability of the composite carbon source according to 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.

As described in the background art, the prior art has shortcomings, and in order to solve the above technical problems, the present application proposes an additive for improving the stability of a complex carbon source and a preparation method thereof.

An additive for improving the stability of a composite carbon source, which is characterized in that: comprises sodium acetate, potassium acetate, methanol, ethanol, glycerol, catalytic enzyme, purifying agent and water.

Wherein, the weight portion of sodium acetate in the additive is 25 to 35 portions, the weight portion of potassium acetate in the additive is 2 to 4 portions, the weight portion of methanol in the additive is 5 to 15 portions, the weight portion of ethanol in the additive is 1 to 3 portions, the weight portion of glycerol in the additive is 12 to 18 portions, the weight portion of catalytic enzyme in the additive is 3 to 7 portions, the weight portion of purifying agent in the additive is 3 to 7 portions, and the weight portion of water in the additive is 25 to 35 portions.

The first embodiment is as follows:

step one, weighing 30 parts of water and adding the water into a reaction kettle;

step two, adding 10 parts of 99% methanol and 2 parts of 99% ethanol into the water in the step one at a constant speed of 1-1.5mL/S, and uniformly stirring;

step three, adding 30 parts of white crystalline powdery sodium acetate trihydrate and 3 parts of potassium acetate into the mixture obtained in the step two, and uniformly stirring;

step four, adding 15 parts of glycerol into the mixture obtained in the step three at a constant speed and uniformly stirring;

step five, preparing 5 parts of purifying agent, and uniformly mixing the activated carbon, the flocculating agent and the aromatic agent according to the weight ratio of 2: 2: 1, wherein the flocculant is one or more of polyaluminium chloride, polyaluminium sulfate, polyferric chloride and polyferric sulfate;

step six, adding the purifying agent prepared in the step five into the mixing agent in the step four, and uniformly stirring;

seventhly, adding 5 parts of catalytic enzyme into the mixture obtained in the sixth step, and uniformly stirring, wherein the catalytic enzyme is one or a combination of more of saccharifying enzyme, pectin lyase, polygalacturonase, pectate lyase and pectinesterase;

and step eight, standing the mixed agent after blending to form an additive finished product capable of improving the stability of the composite carbon source, and packaging the additive finished product in barrels.

Through the blending of sodium acetate and potassium acetate, the osmotic pressure of the microorganisms is increased, so that the microorganisms in the composite carbon source lose activity, and the stability of the composite carbon source is improved. The protein of the microorganism is denatured and inactivated by the bactericidal action of methanol and ethanol, or the protein permeates into the microbial cells to dissolve the microbial cells, so that the stability of the composite carbon source is further improved. The biological enzyme can promote the decomposition of sugar and cellulose in the composite carbon source and further improve COD in the composite carbon source. The purifying agent can keep the composite carbon source clear, and the composite carbon source containing the purifying agent can further improve the purifying capacity of the sewage.

Example two:

step one, weighing 25 parts of water and adding the water into a reaction kettle;

step two, adding 10 parts of 99% methanol and 3 parts of 99% ethanol into the water in the step one at a constant speed of 1-1.5mL/S, and uniformly stirring;

step three, adding 35 parts of white crystalline powdery sodium acetate trihydrate and 4 parts of potassium acetate into the mixture obtained in the step two, and uniformly stirring;

step four, adding 12 parts of glycerol into the mixture obtained in the step three at a constant speed and uniformly stirring;

step five, preparing 4 parts of purifying agent, and uniformly mixing the activated carbon, the flocculating agent and the aromatic agent according to the weight ratio of 2: 1, wherein the flocculating agent is one or more of polyaluminium chloride, polyaluminium sulfate, polyferric chloride and polyferric sulfate;

step six, adding the purifying agent prepared in the step five into the mixing agent in the step four, and uniformly stirring;

seventhly, adding 7 parts of catalytic enzyme into the mixture obtained in the sixth step, and uniformly stirring, wherein the catalytic enzyme is one or a combination of more of saccharifying enzyme, pectin lyase, polygalacturonase, pectate lyase and pectinesterase;

and step eight, standing the mixed agent after blending to form an additive finished product capable of improving the stability of the composite carbon source, and packaging the additive finished product in barrels.

Through the blending of sodium acetate and potassium acetate, the osmotic pressure of the microorganisms is increased, so that the microorganisms in the composite carbon source lose activity, and the stability of the composite carbon source is improved. The protein of the microorganism is denatured and inactivated by the bactericidal action of methanol and ethanol, or the protein permeates into the microbial cells to dissolve the microbial cells, so that the stability of the composite carbon source is further improved. The biological enzyme can promote the decomposition of sugar and cellulose in the composite carbon source and further improve COD in the composite carbon source. The purifying agent can keep the composite carbon source clear, and the composite carbon source containing the purifying agent can further improve the purifying capacity of the sewage.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.