CN111068507A - Treatment method of biological soil deodorization waste gas - Google Patents
Treatment method of biological soil deodorization waste gas Download PDFInfo
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- CN111068507A CN111068507A CN201911389849.1A CN201911389849A CN111068507A CN 111068507 A CN111068507 A CN 111068507A CN 201911389849 A CN201911389849 A CN 201911389849A CN 111068507 A CN111068507 A CN 111068507A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention relates to a method for treating biological soil deodorization waste gas, which comprises the following steps: diluting; adding a modifying agent for deodorization, sterilization and improvement of sludge dewatering property, and fully stirring for 50-60min at a stirring speed of 600-800 r/min; thirdly, carrying out water-soluble infiltration; (V) a process for degrading pollutants by biological oxidation; and (VI) condensing the product obtained in the step (V) by using a water-cooled condenser to obtain a condensate, and separating tar in the condensate to obtain the tar of the chemical raw material and the heat-dried dye.
Description
Technical Field
The invention relates to the technical field of soil deodorization waste gas treatment, in particular to a method for treating biological soil deodorization waste gas.
Background
Various malodorous gases produced by sewage plants, which have a significant harmful effect on the respiratory system, digestive system, etc. of human bodies, are the basic nutrients on which these active microorganisms rely for their survival. The microorganism synthesizes organic nutrients necessary for survival in vivo by absorbing the above various organic and inorganic components, and adopts the treatment method of biological soil deodorization waste gas to treat sewage, and the odor generated in the treatment process can also treat other various organic and inorganic waste gases and complex odors. Meanwhile, the treated gas does not need to be provided with an exhaust port, the green and beautiful lawn is a soil method emission point of the purified gas, and the environment-friendly department is not required to examine and approve gas emission indexes and install on-line detection.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a method for treating the biological soil deodorization waste gas, wherein the deodorization efficiency is more than 90%, and organic and inorganic waste gas is reasonably and safely treated by utilizing the adsorption, absorption and degradation functions of microbial cells on harmful substances, so that the environmental influence is reduced and the environmental protection pressure is relieved.
The technical scheme for solving the technical problems is as follows:
a treatment method of biological soil deodorization waste gas comprises the following steps:
diluting: diluting the filter material to 90% water content, and enhancing the fluidity of the filter material;
adding a modifying agent for deodorization, sterilization and improvement of sludge dewatering property, and fully stirring for 50-60min at a stirring speed of 600-800 r/min;
and (III) carrying out water soluble infiltration: the surface of the filter material is covered with a water layer, chemical substances in odor are dissolved on the surface layer after contacting with the filter material, and are converted into a water phase from a gas phase, so that bacteria in the filter material can be further absorbed and decomposed; the porosity of the filter material enables the filter material to have an ultra-large surface area, so that the gas phase and the water phase have larger contact areas;
(IV) the malodorous components in the water solution are adsorbed and absorbed by the microorganisms, and the malodorous components are transferred from the water to the microorganisms;
(V) degradation of pollutants by biological oxidation: the obligate bacteria (the processing strains obtained by screening according to the type of the odor source) in the filter material take the pollutants as food, convert the pollutants into self nutrient substances, convert elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like into free states from the form of compounds, enter the self circulation process of microorganisms and further achieve the purpose of degradation;
and (VI) condensing the product obtained in the step (V) by using a water-cooled condenser to obtain condensate, and separating tar in the condensate to obtain the tar of the chemical raw material and the heat-dried dye.
The technical scheme of the invention is further defined as follows:
in the method for treating the biological soil deodorization waste gas, the modification agent for deodorization, sterilization and improvement of sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 13-18 parts of organic acid: 10-12 parts of barium oxide: 5-8 parts of phenylacetic acid: 6-9 parts of menthol: 2-4 parts, 2-methyl-propionic acid methyl ester: 5-9 parts of 2-methylpropanoic acid: 1-3 parts of caryophyllene: 10-13 parts of transition metal salt: 3-9 parts of magnesium salt: 2-4 parts of aluminum salt activating agent: 1-2 parts.
In the method for treating the biological soil deodorization waste gas, the modification agent for deodorization, sterilization and improvement of sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 13 parts, organic acid: 10 parts, barium oxide: 5 parts, phenylacetic acid: 6 parts, menthol: 2 parts, 2-methyl-propionic acid methyl ester: 5 parts of 2-methylpropanoic acid: 1 part, caryophyllene: 10 parts, transition metal salt: 3 parts, magnesium salt: 2 parts, aluminum salt activator: 1 part.
In the method for treating the biological soil deodorization waste gas, the modification agent for deodorization, sterilization and improvement of sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 18 parts, organic acid: 12 parts, barium oxide: 8 parts, phenylacetic acid: 9 parts, menthol: 4 parts, 2-methyl-propionic acid methyl ester: 9 parts of 2-methylpropanoic acid: 3 parts of caryophyllene: 13 parts, transition metal salt: 9 parts, magnesium salt: 4 parts, aluminum salt activator: and 2 parts.
In the method for treating the biological soil deodorization waste gas, the modification agent for deodorization, sterilization and improvement of sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 15 parts, organic acid: 11 parts, barium oxide: 6 parts, phenylacetic acid: 8 parts, menthol: 3 parts, 2-methyl-propionic acid methyl ester: 7 parts of 2-methylpropanoic acid: 2 parts, caryophyllene: 12 parts, transition metal salt: 6 parts, magnesium salt: 3 parts of aluminum salt activator: 1.5 parts.
The invention has the beneficial effects that:
the deodorization efficiency of the invention is more than 90 percent, the principle is that the waste gas is intensively sent to a biological filter for treatment, the waste gas passes through a wet, porous and filter layer filled with active microorganisms, and the harmful substances are decomposed into simple inorganic substances such as CO2, H2O, H2SO4, HNO3 and the like after being adsorbed by utilizing the adsorption, absorption and degradation functions of microbial cells on the harmful substances and the characteristics of small cell size, large surface area, strong adsorbability and various metabolic types of the microorganisms; the microorganism used for waste gas treatment is the core part of the biological filter chamber system, the removal effect is determined by the activity of the microorganism, relevant microorganism analysis technology and research equipment must be mastered to culture corresponding strains according to the waste gas components to adsorb and degrade harmful substances, otherwise, the removal effect is difficult to ensure. The microorganism adopted by the biofilter system is cultivated by the life science academy of the university of Compound denier, and can cultivate corresponding strains according to the components of waste gas to adsorb and degrade harmful substances, thereby completely meeting the requirements of the invention; according to the process, the modifying agent for deodorization, sterilization and improvement of sludge dewatering property is added, and the menthol, the 2-methyl propionate, the 2-methylpropanoic acid, the caryophyllene and the transition metal salt are added in the modifying agent for deodorization, sterilization and improvement of sludge dewatering property, so that the environment is protected, the working efficiency is improved, the time and the labor are saved, and the efficiency and the energy are high.
Detailed Description
Example 1
The embodiment is a method for treating biological soil deodorization waste gas, which comprises the following steps:
diluting: diluting the filter material to 90% water content, and enhancing the fluidity of the filter material;
adding a modifying agent for deodorization, sterilization and improvement of sludge dewatering property, and fully stirring for 50min at a stirring speed of 600 r/min;
and (III) carrying out water soluble infiltration: the surface of the filter material is covered with a water layer, chemical substances in odor are dissolved on the surface layer after contacting with the filter material, and are converted into a water phase from a gas phase, so that bacteria in the filter material can be further absorbed and decomposed; the porosity of the filter material enables the filter material to have an ultra-large surface area, so that the gas phase and the water phase have larger contact areas;
(IV) the malodorous components in the water solution are adsorbed and absorbed by the microorganisms, and the malodorous components are transferred from the water to the microorganisms;
(V) degradation of pollutants by biological oxidation: the obligate bacteria (the processing strains obtained by screening according to the type of the odor source) in the filter material take the pollutants as food, convert the pollutants into self nutrient substances, convert elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like into free states from the form of compounds, enter the self circulation process of microorganisms and further achieve the purpose of degradation;
sixthly, condensing the product obtained in the step five by using a water-cooled condenser to obtain condensate, and separating tar in the condensate to obtain tar of chemical raw materials and heat-dried dye;
the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 13 parts, organic acid: 10 parts, barium oxide: 5 parts, phenylacetic acid: 6 parts, menthol: 2 parts, 2-methyl-propionic acid methyl ester: 5 parts of 2-methylpropanoic acid: 1 part, caryophyllene: 10 parts, transition metal salt: 3 parts, magnesium salt: 2 parts, aluminum salt activator: 1 part.
Example 2
The embodiment is a method for treating biological soil deodorization waste gas, which comprises the following steps:
diluting: diluting the filter material to 90% water content, and enhancing the fluidity of the filter material;
adding a modifying agent for deodorization, sterilization and improvement of sludge dewatering property, and fully stirring for 60min at a stirring speed of 800 r/min;
and (III) carrying out water soluble infiltration: the surface of the filter material is covered with a water layer, chemical substances in odor are dissolved on the surface layer after contacting with the filter material, and are converted into a water phase from a gas phase, so that bacteria in the filter material can be further absorbed and decomposed; the porosity of the filter material enables the filter material to have an ultra-large surface area, so that the gas phase and the water phase have larger contact areas;
(IV) the malodorous components in the water solution are adsorbed and absorbed by the microorganisms, and the malodorous components are transferred from the water to the microorganisms;
(V) degradation of pollutants by biological oxidation: the obligate bacteria (the processing strains obtained by screening according to the type of the odor source) in the filter material take the pollutants as food, convert the pollutants into self nutrient substances, convert elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like into free states from the form of compounds, enter the self circulation process of microorganisms and further achieve the purpose of degradation;
sixthly, condensing the product obtained in the step five by using a water-cooled condenser to obtain condensate, and separating tar in the condensate to obtain tar of chemical raw materials and heat-dried dye;
the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 18 parts, organic acid: 12 parts, barium oxide: 8 parts, phenylacetic acid: 9 parts, menthol: 4 parts, 2-methyl-propionic acid methyl ester: 9 parts of 2-methylpropanoic acid: 3 parts of caryophyllene: 13 parts, transition metal salt: 9 parts, magnesium salt: 4 parts, aluminum salt activator: and 2 parts.
Example 3
The embodiment is a method for treating biological soil deodorization waste gas, which comprises the following steps:
diluting: diluting the filter material to 90% water content, and enhancing the fluidity of the filter material;
adding a modifying agent for deodorization, sterilization and improvement of sludge dewatering property, and fully stirring for 55min at the stirring speed of 700 r/min;
and (III) carrying out water soluble infiltration: the surface of the filter material is covered with a water layer, chemical substances in odor are dissolved on the surface layer after contacting with the filter material, and are converted into a water phase from a gas phase, so that bacteria in the filter material can be further absorbed and decomposed; the porosity of the filter material enables the filter material to have an ultra-large surface area, so that the gas phase and the water phase have larger contact areas;
(IV) the malodorous components in the water solution are adsorbed and absorbed by the microorganisms, and the malodorous components are transferred from the water to the microorganisms;
(V) degradation of pollutants by biological oxidation: the obligate bacteria (the processing strains obtained by screening according to the type of the odor source) in the filter material take the pollutants as food, convert the pollutants into self nutrient substances, convert elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like into free states from the form of compounds, enter the self circulation process of microorganisms and further achieve the purpose of degradation;
sixthly, condensing the product obtained in the step five by using a water-cooled condenser to obtain condensate, and separating tar in the condensate to obtain tar of chemical raw materials and heat-dried dye;
the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 15 parts, organic acid: 11 parts, barium oxide: 6 parts, phenylacetic acid: 8 parts, menthol: 3 parts, 2-methyl-propionic acid methyl ester: 7 parts of 2-methylpropanoic acid: 2 parts, caryophyllene: 12 parts, transition metal salt: 6 parts, magnesium salt: 3 parts of aluminum salt activator: 1.5 parts.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (5)
1. A treatment method for biological soil deodorization waste gas is characterized by comprising the following steps:
diluting: diluting the filter material to 90% water content, and enhancing the fluidity of the filter material;
adding a modifying agent for deodorization, sterilization and improvement of sludge dewatering property, and fully stirring for 50-60min at a stirring speed of 600-800 r/min;
and (III) carrying out water soluble infiltration: the surface of the filter material is covered with a water layer, chemical substances in odor are dissolved on the surface layer after contacting with the filter material, and are converted into a water phase from a gas phase, so that bacteria in the filter material can be further absorbed and decomposed; the porosity of the filter material enables the filter material to have an ultra-large surface area, so that the gas phase and the water phase have larger contact areas;
(IV) the malodorous components in the water solution are adsorbed and absorbed by the microorganisms, and the malodorous components are transferred from the water to the microorganisms;
(V) degradation of pollutants by biological oxidation: the obligate bacteria (the processing strains obtained by screening according to the type of the odor source) in the filter material take the pollutants as food, convert the pollutants into self nutrient substances, convert elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like into free states from the form of compounds, enter the self circulation process of microorganisms and further achieve the purpose of degradation;
and (VI) condensing the product obtained in the step (V) by using a water-cooled condenser to obtain condensate, and separating tar in the condensate to obtain the tar of the chemical raw material and the heat-dried dye.
2. The method for treating a biological soil deodorizing exhaust gas according to claim 1, characterized in that: the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 13-18 parts of organic acid: 10-12 parts of barium oxide: 5-8 parts of phenylacetic acid: 6-9 parts of menthol: 2-4 parts, 2-methyl-propionic acid methyl ester: 5-9 parts of 2-methylpropanoic acid: 1-3 parts of caryophyllene: 10-13 parts of transition metal salt: 3-9 parts of magnesium salt: 2-4 parts of aluminum salt activating agent: 1-2 parts.
3. The method for treating a biological soil deodorizing exhaust gas according to claim 2, characterized in that: the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 13 parts, organic acid: 10 parts, barium oxide: 5 parts, phenylacetic acid: 6 parts, menthol: 2 parts, 2-methyl-propionic acid methyl ester: 5 parts of 2-methylpropanoic acid: 1 part, caryophyllene: 10 parts, transition metal salt: 3 parts, magnesium salt: 2 parts, aluminum salt activator: 1 part.
4. The method for treating a biological soil deodorizing exhaust gas according to claim 2, characterized in that: the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 18 parts, organic acid: 12 parts, barium oxide: 8 parts, phenylacetic acid: 9 parts, menthol: 4 parts, 2-methyl-propionic acid methyl ester: 9 parts of 2-methylpropanoic acid: 3 parts of caryophyllene: 13 parts, transition metal salt: 9 parts, magnesium salt: 4 parts, aluminum salt activator: and 2 parts.
5. The method for treating a biological soil deodorizing exhaust gas according to claim 2, characterized in that: the modifying agent for deodorizing, sterilizing and improving the sludge dewatering performance in the step (II) comprises the following components in percentage by mass: zinc oxide: 15 parts, organic acid: 11 parts, barium oxide: 6 parts, phenylacetic acid: 8 parts, menthol: 3 parts, 2-methyl-propionic acid methyl ester: 7 parts of 2-methylpropanoic acid: 2 parts, caryophyllene: 12 parts, transition metal salt: 6 parts, magnesium salt: 3 parts of aluminum salt activator: 1.5 parts.
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