CN115196826A - Advanced treatment process for livestock and poultry breeding polluted tail end wastewater - Google Patents
Advanced treatment process for livestock and poultry breeding polluted tail end wastewater Download PDFInfo
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- CN115196826A CN115196826A CN202210826984.3A CN202210826984A CN115196826A CN 115196826 A CN115196826 A CN 115196826A CN 202210826984 A CN202210826984 A CN 202210826984A CN 115196826 A CN115196826 A CN 115196826A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the field of water treatment, in particular to a livestock and poultry breeding polluted tail end wastewater advanced treatment process, which comprises the following steps of S1, solid-liquid separation: feeding the culture sewage into a solid-liquid separator by a cutting pump for solid-liquid separation treatment, and making the separated waste residues into organic fertilizers; also obtaining primary filtrate; s2, fermentation treatment: the wastewater enters a methane tank for primary fermentation treatment; s3, degrading tetracycline antibiotics: adding hydrogen peroxide into biogas slurry discharged from a biogas digester to decompose tetracycline antibiotics and toxic substances in the excrement; s4, removing ammonia nitrogen and odor: adding ammonia nitrogen bacteria and COD degrading bacteria; s5, settling heavy metals: adding a heavy metal flocculant to perform coagulation on heavy metals; s6, filtering impurities: filtering the biogas slurry to obtain clear liquid; s7, disinfection treatment: the clear liquid enters a contact disinfection tank, and the disinfectant is used for carrying out sterilization and disinfection treatment on the culture sewage and then discharging the culture sewage; the effects of eliminating tetracycline antibiotics and heavy metals in the wastewater and utilizing energy sources are realized.
Description
Technical Field
The invention relates to the field of water treatment, in particular to a livestock and poultry breeding polluted tail end wastewater advanced treatment process.
Background
As a national key pollution prevention and treatment industry, the livestock and poultry breeding industry needs to pay more attention to and strengthen the pollution prevention and treatment work, and in order to ensure the healthy sustainable development of the livestock and poultry breeding industry, the state further improves the control requirement of the water pollutant discharge of the livestock and poultry breeding industry.
The aquaculture wastewater not only contains tetracycline antibiotics and heavy metals, but also has certain energy;
the application aims to provide a process for eliminating tetracycline antibiotics and heavy metals in wastewater and utilizing energy thereof.
Disclosure of Invention
Aiming at the prior art, the invention provides a livestock and poultry breeding pollution tail end wastewater advanced treatment process, which realizes the effects of eliminating tetracycline antibiotics and heavy metals in wastewater and utilizing energy thereof.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
an advanced treatment process of livestock and poultry breeding polluted tail end wastewater, which comprises the following steps,
an advanced treatment process of livestock and poultry breeding polluted tail end wastewater, which comprises the following steps,
s1, solid-liquid separation: feeding the culture sewage into a solid-liquid separator by a cutting pump for solid-liquid separation treatment, and making the separated waste residues into organic fertilizers; also obtaining primary filtrate;
s2, fermentation treatment: the wastewater enters a methane tank for primary fermentation treatment;
s3, degrading tetracycline antibiotics: adding hydrogen peroxide into biogas slurry discharged from a biogas digester to decompose tetracycline antibiotics and toxic substances in the excrement;
s4, removing ammonia nitrogen and odor: adding ammonia nitrogen bacteria and COD degrading bacteria;
s5, settling heavy metals: adding a heavy metal flocculant to perform coagulation on heavy metals;
s6, filtering impurities: filtering the biogas slurry to obtain clear liquid;
s7, disinfection treatment: the clear liquid enters a contact disinfection tank, and the disinfectant is used for sterilizing and disinfecting the culture sewage and then discharging the culture sewage.
Further, in step S2, ozone is also added.
Further, in the step S4, the dosage of the COD degrading microbial inoculum is 2-3mg/L, and the dosage of the ammonia nitrogen microbial inoculum is 2-3mg/L.
Further, in the step S4, the flocculating agent is polyaluminum ferric chloride, and the adding amount of the polyaluminum ferric chloride in each liter of the wastewater is 60-80mg.
The invention has the beneficial effects that:
the wastewater enters a methane tank for primary fermentation treatment, and methane can be utilized; adding hydrogen peroxide into biogas slurry discharged from a biogas digester, and introducing ozone to decompose tetracycline antibiotics and toxic substances in the feces to obtain a degradation solution; adding a heavy metal flocculant to perform coagulation on heavy metals; the effects of eliminating tetracycline antibiotics and heavy metals in the wastewater and utilizing the energy thereof are realized.
Drawings
FIG. 1 is a schematic view of the present invention;
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly understood, 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.
As shown in figure 1, the advanced treatment process of the livestock and poultry breeding polluted tail end wastewater comprises the following steps,
s1, solid-liquid separation: feeding the culture sewage into a solid-liquid separator by a cutting pump for solid-liquid separation treatment, and making the separated waste residues into organic fertilizers; an initial filtrate is also obtained.
S2, fermentation treatment: the wastewater enters a methane tank for primary fermentation treatment; biogas can be utilized.
S3, degrading tetracycline antibiotics: adding hydrogen peroxide into biogas slurry discharged from a biogas digester, and introducing ozone to decompose tetracycline antibiotics and toxic substances in the feces;
s4, ammonia nitrogen and odor removal: adding ammonia nitrogen microbial inoculum (a Han tide microbial preparation) and a COD degradation microbial inoculum; the dosage of the COD degrading microbial inoculum is 2-3mg/L, and the dosage of the ammonia nitrogen microbial inoculum is 2-3mg/L;
s5, settling heavy metals: adding a heavy metal flocculant to perform coagulation on heavy metals;
the flocculating agent is polyaluminum ferric chloride, and the dosage of the polyaluminum ferric chloride in each liter of wastewater is 50-100mg, preferably 60-80mg. Therefore, a part of heavy metal ions in the wastewater can be captured through the polyaluminum ferric chloride, a part of chromaticity is removed, the solid-liquid separation is rapid, the sludge is easy to separate, and the water content of the sludge is low, so that the method has multiple purposes.
S6, filtering impurities: and filtering the biogas slurry to obtain clear liquid.
S7, disinfection treatment: the clear liquid enters a contact disinfection tank, and the disinfectant is used for sterilizing and disinfecting the culture sewage and then discharging the culture sewage.
In conclusion, the wastewater enters the methane tank for primary fermentation treatment, and the methane can be utilized; adding hydrogen peroxide into biogas slurry discharged from a biogas digester, and introducing ozone to decompose tetracycline antibiotics and toxic substances in the feces to obtain degradation liquid; adding a heavy metal flocculant to perform coagulation on heavy metals; the effects of eliminating tetracycline antibiotics and heavy metals in the wastewater and utilizing the energy thereof are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (4)
1. A livestock and poultry breeding polluted tail end wastewater advanced treatment process is characterized by comprising the following steps,
s1, solid-liquid separation: feeding the culture sewage into a solid-liquid separator by a cutting pump for solid-liquid separation treatment, and making the separated waste residues into organic fertilizers; also obtaining primary filtrate;
s2, fermentation treatment: the wastewater enters a methane tank for primary fermentation treatment;
s3, degrading tetracycline antibiotics: adding hydrogen peroxide into biogas slurry discharged from a biogas digester to decompose tetracycline antibiotics and toxic substances in the feces;
s4, removing ammonia nitrogen and odor: adding ammonia nitrogen bacteria and COD degrading bacteria;
s5, settling heavy metals: adding a heavy metal flocculant to perform coagulation on heavy metals;
s6, filtering impurities: filtering the biogas slurry to obtain clear liquid;
s7, disinfection treatment: the clear liquid enters a contact disinfection tank, and the disinfectant is used for sterilizing and disinfecting the culture sewage and then discharging the culture sewage.
2. The advanced treatment process for livestock and poultry breeding polluted tail end wastewater as claimed in claim 1, which is characterized in that,
in step S2, ozone is also added.
3. The advanced treatment process for livestock and poultry breeding polluted tail end wastewater as claimed in claim 1, which is characterized in that,
in the step S4, the dosage of the COD degrading microbial inoculum is 2-3mg/L, and the dosage of the ammonia nitrogen microbial inoculum is 2-3mg/L.
4. The advanced treatment process for livestock and poultry breeding polluted tail end wastewater as claimed in claim 1, which is characterized in that,
in the step S4, the flocculating agent is polyaluminum ferric chloride, and the dosage of the polyaluminum ferric chloride in each liter of wastewater is 60-80mg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210826984.3A CN115196826A (en) | 2022-07-13 | 2022-07-13 | Advanced treatment process for livestock and poultry breeding polluted tail end wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210826984.3A CN115196826A (en) | 2022-07-13 | 2022-07-13 | Advanced treatment process for livestock and poultry breeding polluted tail end wastewater |
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| CN115196826A true CN115196826A (en) | 2022-10-18 |
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| CN202210826984.3A Pending CN115196826A (en) | 2022-07-13 | 2022-07-13 | Advanced treatment process for livestock and poultry breeding polluted tail end wastewater |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2142043T3 (en) * | 1995-01-14 | 2000-04-01 | Niels Ole Vesterager | METHOD OF TREATMENT OF A BIOMASS IN ORDER TO ELIMINATE HEAVY METALS WITH HYDROGEN SULFIDE. |
| CN107082536A (en) * | 2017-06-02 | 2017-08-22 | 四川亿龙环保工程有限公司 | A kind of cultivating wastewater purification technique |
| CN108439695A (en) * | 2018-03-02 | 2018-08-24 | 云南龙帜环境工程有限公司 | A kind of livestock breeding wastewater integral treatment method |
| CN112830652A (en) * | 2020-12-31 | 2021-05-25 | 上海田应农业科技有限公司 | Method for preparing water-soluble fertilizer by comprehensively treating excrement, urine and sewage of large-scale livestock and poultry farm |
-
2022
- 2022-07-13 CN CN202210826984.3A patent/CN115196826A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2142043T3 (en) * | 1995-01-14 | 2000-04-01 | Niels Ole Vesterager | METHOD OF TREATMENT OF A BIOMASS IN ORDER TO ELIMINATE HEAVY METALS WITH HYDROGEN SULFIDE. |
| CN107082536A (en) * | 2017-06-02 | 2017-08-22 | 四川亿龙环保工程有限公司 | A kind of cultivating wastewater purification technique |
| CN108439695A (en) * | 2018-03-02 | 2018-08-24 | 云南龙帜环境工程有限公司 | A kind of livestock breeding wastewater integral treatment method |
| CN112830652A (en) * | 2020-12-31 | 2021-05-25 | 上海田应农业科技有限公司 | Method for preparing water-soluble fertilizer by comprehensively treating excrement, urine and sewage of large-scale livestock and poultry farm |
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