CN108658247B - Sewage treatment system - Google Patents
Sewage treatment system Download PDFInfo
- Publication number
- CN108658247B CN108658247B CN201810485341.0A CN201810485341A CN108658247B CN 108658247 B CN108658247 B CN 108658247B CN 201810485341 A CN201810485341 A CN 201810485341A CN 108658247 B CN108658247 B CN 108658247B
- Authority
- CN
- China
- Prior art keywords
- tank
- methane
- deoxidizing
- sewage
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/58—Reaction vessels connected in series or in parallel
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
- C12M25/16—Particles; Beads; Granular material; Encapsulation
- C12M25/18—Fixed or packed bed
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
- C12M41/24—Heat exchange systems, e.g. heat jackets or outer envelopes inside the vessel
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/32—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of substances in solution
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/40—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
Abstract
The invention discloses a sewage treatment system, comprising: 1) a collecting tank for collecting domestic sewage; 2) a biogas production system for efficiently producing biogas; 3) the denitrification system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the nitrification tank is internally provided with the illumination adsorption device, the illumination adsorption device comprises a transparent nylon membrane and a light-emitting device, the light-emitting device is wrapped by the transparent nylon membrane, and chlorella grows on the surface of the transparent nylon membrane in an adherent manner; 4) and the controller is used for controlling the operation of the system. The sewage treatment method has the characteristics of low energy consumption, high sewage treatment capacity, and the like.
Description
Technical Field
The invention belongs to the technical field of water treatment. More particularly, the present invention relates to a sewage treatment system.
Background
The urban domestic sewage contains more organic matters including carbohydrates, proteins, amino acids, fatty acids, grease, esters and the like, and has strong biodegradability. However, the amount of municipal domestic sewage is large, the content of organic matters is still low, the content of dissolved oxygen in water is also high, the biogas yield is low, and the method is not suitable for producing biogas by adopting the traditional biogas production technology, therefore, the municipal domestic sewage is usually discharged after ammoniation, nitrification and denitrification are carried out under the action of microorganisms, the treatment process not only needs to consume a large amount of energy, but also directly decomposes the organic matters in the sewage by the microorganisms, which is not beneficial to sustainable utilization of energy, and in the traditional sewage treatment process, a large amount of oxygen is needed to be consumed in the nitrification process, so that the nitrification tank often needs aeration treatment, and the consumed electric energy is high.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
It is still another object of the present invention to provide a sewage treatment system capable of producing biogas using organic matter in domestic sewage to reduce sewage treatment costs.
To achieve these objects and other advantages in accordance with the present invention, there is provided a sewage treatment system including:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank so as to prevent large particles from entering the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the biogas production system comprises a deoxidizing tank and a biogas digester, wherein the deoxidizing tank is communicated with the collecting tank through a pipeline, an electric control valve is arranged on the pipeline, a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device are arranged in the deoxidizing tank, the heating device is used for increasing the temperature of sewage so as to increase the biogas fermentation speed, the temperature sensing device is used for detecting the temperature of biogas slurry in the biogas digester, and the first negative pressure generating device is used for removing oxygen in the sewage; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is arranged at the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank;
3) the denitrification system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the nitrification tank is internally provided with the illumination adsorption device, the illumination adsorption device comprises a transparent nylon membrane and a light-emitting device, the light-emitting device is wrapped by the transparent nylon membrane, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch; (ii) a
4) And the controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch.
When the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
Preferably, the methane tank comprises a first methane tank and a second methane tank, the deoxidizing tank is respectively communicated with the first methane tank and the second methane tank through pipelines, and a first organic matter detection device is arranged in the methane tank and used for detecting the content of organic matters in the methane tank; the first organic matter detection device is electrically connected with the controller;
when the organic matter detection device detects that organic matters in the methane tank are lower than a preset value in the storage, the controller controls the second pump body to be started so as to pump the methane liquid into the nitrification tank.
Preferably, a deodorization tank is arranged between the biogas digester and the nitrification tank, the deodorization tank is a closed cavity, and the deodorization tank is connected with an ozone generating device so as to remove odor of the biogas slurry through ozone.
Preferably, the methane tank is soaked with a microorganism adsorption bed.
Preferably, the microbial adsorption bed comprises a shell member and a filler, the shell member wraps the filler, the shell member is composed of a polypropylene hollow fiber membrane, a through hole is formed in the shell member, the filler is spherical, and the preparation method of the filler comprises the following steps:
step one, mixing the raw materials in a mass ratio of 2-3: 1-2: 0.5-1: 0.5-1 of zeolite powder, activated carbon powder, talcum powder and microcrystalline cellulose are mixed uniformly to obtain mixed powder;
step two, under the action of ultrasonic waves and stirring, adding the mixed powder into the acrylic acid, adding a cross-linking agent, stirring until the cross-linking agent is completely dissolved, and then adding an oxidizing agent, a foaming agent and a reducing agent to generate active porous resin; the oxidant is one or more of ammonium persulfate, potassium persulfate or hydrogen peroxide, and the foaming agent is one or two of sodium bicarbonate or potassium bicarbonate; the reducing agent is one or more of sodium sulfite, potassium sulfite or ascorbic acid.
And step three, granulating, drying, screening, soaking in weak acid and washing the active porous resin to obtain the filling material.
Preferably, the sludge discharged from the sludge discharge port is used for breeding earthworms, flies or red line worms.
Preferably, sodium sulfite is added to the deoxygenation tank to remove oxygen from the wastewater in the deoxygenation tank.
Preferably, an air pressure sensing device is arranged in the methane tank and is electrically connected with the controller;
when the air pressure sensing device detects that the air pressure in the methane tank is higher than a preset value in the storage, the controller starts the second negative pressure generating device to collect the gas in the methane tank.
Preferably, the heating device is a solar heating device.
The invention at least comprises the following beneficial effects: oxygen in the oxygen removal tank is rapidly removed through the first negative pressure generating device and the heating device, and the fermentation speed and the gas yield of the biogas are improved; the second negative pressure generating device is used for collecting the gas in the methane tank, so that the gas production activity of methane producing bacteria can be enhanced, and the gas production efficiency can be improved; by using the microbial adsorption bed, biogas-producing bacteria can be effectively attached, and the biomass in the biogas digester is greatly improved; by constructing a symbiotic system combining nitrobacteria and chlorella, the consumption of a large amount of energy due to a large amount of aeration in the traditional nitrification tank is avoided, and the oxygen released by the photosynthesis of the chlorella is utilized to improve the oxygen for the growth of the nitrobacteria and simultaneously absorb inorganic nutrient salt in water; the nitrifying bacteria absorb organic matters in the water, so that COD in the discharged water is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
A wastewater treatment system, comprising:
1) the collecting pit, it is used for collecting domestic sewage, the water inlet of collecting pit is provided with mechanical grating in order to block that the large granule does not have the entering collecting pit, be provided with water level monitoring device in the collecting pit.
2) The biogas production system comprises a deoxidizing pool and a biogas pool, wherein the deoxidizing pool is communicated with the collecting pool through a pipeline, the pipeline is provided with an electric control valve, the deoxidizing pool is internally provided with a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device, and the first negative pressure generating device is used for removing oxygen in sewage; the methane tank is characterized in that a first pump body is arranged between the methane tank and the deoxidizing tank so as to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is formed in the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank.
3) The nitrogen removal system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the illumination adsorption device is arranged in the nitrification tank and comprises a transparent nylon membrane and a light-emitting device, the transparent nylon membrane wraps the light-emitting device, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch.
4) And the controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch.
When the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
The working principle of the embodiment is as follows: the collecting tank collects sewage, the collected sewage is pumped into the deoxidizing tank, the sewage is heated and subjected to negative pressure, oxygen in the sewage is reduced after the oxygen in the sewage is removed, the sewage is pumped into the methane tank to be fermented to produce methane, when the content of organic matters in the methane tank is reduced to a preset value, the methane tank is pumped into the nitrification tank to be nitrified, the methane tank is discharged after the nitrification of nitrifying bacteria and the absorption of chlorella, and methane residues are pumped out and collected for other uses.
In the embodiment, each cubic meter of sewage with COD of 450mg/L can generate 0.225 cubic meter of methane, namely each kilogram of sewage with COD can generate 0.5 cubic meter of methane, and the methane yield is improved by more than 80% compared with that of the sewage produced by the traditional method; deoxidizing through the deoxidizing tank, so that the gas production rate of the sewage for generating biogas is improved by over 70 percent; the second negative pressure collecting device is used for collecting gas, so that the methane in the methane tank can be discharged in time, and the methane yield is improved by more than 5%. The energy consumption required by each cubic of sewage treatment method in the embodiment is equivalent to the energy level consumed by the traditional sewage treatment method. The domestic sewage treated by the method provided by the embodiment meets the comprehensive sewage discharge standard of the people's republic of China.
Example 2
A wastewater treatment system, comprising:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank so as to prevent large particles from entering the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the biogas production system comprises a deoxidizing pool and a biogas pool, wherein the deoxidizing pool is communicated with the collecting pool through a pipeline, the pipeline is provided with an electric control valve, the deoxidizing pool is internally provided with a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device, and the first negative pressure generating device is used for removing oxygen in sewage; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is arranged at the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank; the methane tank comprises a first methane tank and a second methane tank, the deoxidizing tank is respectively communicated with the first methane tank and the second methane tank through pipelines, and a first organic matter detection device is arranged in the methane tank and used for detecting the content of organic matters in the methane tank; the first organic matter detection device is electrically connected with the controller;
when the organic matter detection device detects that organic matters in the methane tank are lower than a preset value in the storage, the controller controls the second pump body to be started so as to pump the methane liquid into the nitrification tank.
3) The nitrogen removal system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the illumination adsorption device is arranged in the nitrification tank and comprises a transparent nylon membrane and a light-emitting device, the transparent nylon membrane wraps the light-emitting device, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch.
4) And the controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch.
When the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
In the embodiment, each cubic meter of sewage with the COD of 581mg/L can generate 0.325 cubic meter of methane, namely each kilogram of sewage with the COD can generate 0.56 cubic meter of methane, and the methane generation amount is improved by more than 80 percent compared with that of the sewage produced by the traditional method; by adding the first methane tank and the second methane tank, the sewage treatment capacity is improved, and organic matter waste caused by fermentation of sewage in the deoxidizing tank is avoided; through adding first organic matter detection device, the organic matter situation of change in the control methane-generating pit to discharge natural pond liquid when the organic matter of certain concentration, for nitrifying, the required carbon source is reserved to the denitrification process, avoid causing the trouble of later stage addition carbon source. The domestic sewage treated by the method provided by the embodiment meets the comprehensive sewage discharge standard of the people's republic of China.
Example 3
A wastewater treatment system, comprising:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank so as to prevent large particles from entering the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the biogas production system comprises a deoxidizing pool and a biogas pool, wherein the deoxidizing pool is communicated with the collecting pool through a pipeline, the pipeline is provided with an electric control valve, the deoxidizing pool is internally provided with a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device, and the first negative pressure generating device is used for removing oxygen in sewage; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is arranged at the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank; the methane tank comprises a first methane tank and a second methane tank, the deoxidizing tank is respectively communicated with the first methane tank and the second methane tank through pipelines, and a first organic matter detection device is arranged in the methane tank and used for detecting the content of organic matters in the methane tank; the first organic matter detection device is electrically connected with the controller, a deodorization tank is arranged between the methane tank and the nitrification tank, the deodorization tank is a closed cavity, and the deodorization tank is connected with the ozone generation device so as to remove odor of the methane liquid through ozone.
When the organic matter detection device detects that organic matters in the methane tank are lower than a preset value in the storage, the controller controls the second pump body to be started so as to pump the methane liquid into the nitrification tank.
3) The nitrogen removal system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the illumination adsorption device is arranged in the nitrification tank and comprises a transparent nylon membrane and a light-emitting device, the transparent nylon membrane wraps the light-emitting device, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch.
4) The controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch;
when the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
In the embodiment, each cubic meter of sewage with COD of 600mg/L can generate 0.39 cubic meter of methane, namely each kilogram of sewage with COD can generate 0.65 cubic meter of methane, and the methane yield is improved by more than 80% compared with that of the sewage produced by the traditional method; the substances with odor are oxidized by ozone, so that the odor is avoided, the surrounding environment of sewage treatment is influenced, the oxygen content in the biogas slurry can be increased after the ozone is introduced, sufficient oxygen is provided for the nitrification of nitrobacteria, the nitrification process is shortened, and the sewage treatment capacity is improved. The domestic sewage treated by the method provided by the embodiment meets the comprehensive sewage discharge standard of the people's republic of China.
Example 4
A wastewater treatment system, comprising:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank so as to prevent large particles from entering the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the biogas production system comprises a deoxidizing pool and a biogas pool, wherein the deoxidizing pool is communicated with the collecting pool through a pipeline, the pipeline is provided with an electric control valve, the deoxidizing pool is internally provided with a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device, and the first negative pressure generating device is used for removing oxygen in sewage; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is arranged at the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank; the methane tank comprises a first methane tank and a second methane tank, the deoxidizing tank is respectively communicated with the first methane tank and the second methane tank through pipelines, and a first organic matter detection device is arranged in the methane tank and used for detecting the content of organic matters in the methane tank; the first organic matter detection device is electrically connected with the controller, a deodorization tank is arranged between the methane tank and the nitrification tank, the deodorization tank is a closed cavity, and the deodorization tank is connected with the ozone generation device so as to remove odor of the methane liquid through ozone.
When the organic matter detection device detects that organic matters in the methane tank are lower than a preset value in the storage, the controller controls the second pump body to be started so as to pump the methane liquid into the nitrification tank.
3) The nitrogen removal system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the illumination adsorption device is arranged in the nitrification tank and comprises a transparent nylon membrane and a light-emitting device, the transparent nylon membrane wraps the light-emitting device, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch.
4) The controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch;
when the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
In the embodiment, each cubic meter of sewage with the COD of 300mg/L can generate 0.135 cubic meter of methane, namely each kilogram of sewage with the COD can generate 0.45 cubic meter of methane, and the methane generation amount is increased by over 75 percent compared with that of the sewage produced by the traditional method; through set up second organic matter detection device in the denitrification pond, the organic matter content in the control denitrification pond avoids lacking the carbon source in the denitrification pond and influences the nitrification effect. The domestic sewage treated by the method provided by the embodiment meets the comprehensive sewage discharge standard of the people's republic of China.
Example 5
A wastewater treatment system, comprising:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank so as to prevent large particles from entering the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the biogas production system comprises a deoxidizing pool and a biogas pool, wherein the deoxidizing pool is communicated with the collecting pool through a pipeline, the pipeline is provided with an electric control valve, the deoxidizing pool is internally provided with a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device, and the first negative pressure generating device is used for removing oxygen in sewage; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is arranged at the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank; the biogas digester comprises a first biogas digester and a second biogas digester, wherein the deoxygenation tank is respectively communicated with the first biogas digester and the second biogas digester through pipelines, a first organic matter detection device is arranged in the biogas digester and used for detecting the content of organic matters in the biogas digester, and when the organic matter detection device detects that the organic matters in the biogas digester are lower than a preset value in a storage device, the controller controls the second pump body to be started so as to pump a proper amount of biogas slurry into the nitrification tank; the first organic matter detection device is electrically connected with the controller, a deodorization tank is arranged between the methane tank and the nitrification tank, the deodorization tank is a closed cavity, and the deodorization tank is connected with the ozone generation device so as to remove odor of the methane liquid through ozone; the microbial adsorption bed is soaked in the methane tank and comprises a shell piece and a filler, the shell piece wraps the filler, the shell piece is composed of a polypropylene hollow fiber membrane, a through hole is formed in the shell piece, the filler is spherical, and the preparation method of the filler comprises the following steps:
step one, mixing the raw materials in a mass ratio of 2:1:1, uniformly mixing the zeolite powder, the activated carbon powder, the talcum powder and the microcrystalline cellulose to obtain mixed powder;
step two, under the action of ultrasonic waves and stirring, adding the mixed powder into the acrylic acid, adding a cross-linking agent, stirring until the cross-linking agent is completely dissolved, and then adding an oxidizing agent, a foaming agent and a reducing agent to generate active porous resin; the oxidant is hydrogen peroxide, and the foaming agent is sodium bicarbonate; the reducing agent is ascorbic acid.
And step three, granulating, drying, screening, soaking in weak acid and washing the active porous resin to obtain the filling material.
3) The nitrogen removal system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the illumination adsorption device is arranged in the nitrification tank and comprises a transparent nylon membrane and a light-emitting device, the transparent nylon membrane wraps the light-emitting device, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch.
4) The controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch; when the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
In the embodiment, each cubic meter of sewage with COD of 400mg/L can generate 0.22 cubic meter of methane, namely, each kilogram of sewage with COD can generate 0.55 cubic meter of methane, and the methane yield of the sewage produced by the method is improved by over 75 percent compared with that produced by the traditional method. The microbial adsorption bed has good adsorption effect and compatibility on the growth of microorganisms, the microbial adsorption bed prepared by the method can effectively improve the content of the microorganisms in the methane tank by more than 5 ten thousand times, the fermentation treatment speed is improved by more than 15 times, and compared with the common microbial adsorption material, the microbial adsorption bed prepared by the method has the capability of adsorbing the microorganisms by 5 times. The domestic sewage treated by the method provided by the embodiment meets the comprehensive sewage discharge standard of the people's republic of China.
Example 6
A wastewater treatment system, comprising:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank so as to prevent large particles from entering the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the methane production system comprises a deoxidizing tank and a methane tank, wherein the deoxidizing tank is communicated with the collecting tank through a pipeline, an electric control valve is arranged on the pipeline, a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device are arranged in the deoxidizing tank, the heating device is a solar heating device, the first negative pressure generating device is used for removing oxygen in sewage, and a proper amount of sodium sulfite is added to increase the removal rate of the oxygen; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, and a sludge discharge port is arranged at the bottom of the methane tank, and sludge at the discharge port can be used for breeding earthworms, flies and the like; the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank; the biogas digester comprises a first biogas digester and a second biogas digester, wherein the deoxygenation tank is respectively communicated with the first biogas digester and the second biogas digester through pipelines, a first organic matter detection device is arranged in the biogas digester and used for detecting the content of organic matters in the biogas digester, and when the organic matter detection device detects that the organic matters in the biogas digester are lower than a preset value in a storage device, the controller controls the second pump body to be started so as to pump a proper amount of biogas slurry into the nitrification tank; an air pressure sensing device is arranged in the methane tank and is electrically connected with the controller; when the air pressure sensing device detects that the air pressure in the methane tank is higher than a preset value in the storage, the controller starts the second negative pressure generating device to collect the gas in the methane tank; the first organic matter detection device is electrically connected with the controller, a deodorization tank is arranged between the methane tank and the nitrification tank, the deodorization tank is a closed cavity, and the deodorization tank is connected with the ozone generation device so as to remove odor of the methane liquid through ozone; the microbial adsorption bed is soaked in the methane tank and comprises a shell piece and a filler, the shell piece wraps the filler, the shell piece is composed of a polypropylene hollow fiber membrane, a through hole is formed in the shell piece, the filler is spherical, and the preparation method of the filler comprises the following steps:
step one, mixing the raw materials in a mass ratio of 2:1:1, uniformly mixing the zeolite powder, the activated carbon powder, the talcum powder and the microcrystalline cellulose to obtain mixed powder;
step two, under the action of ultrasonic waves and stirring, adding the mixed powder into the acrylic acid, adding a cross-linking agent, stirring until the cross-linking agent is completely dissolved, and then adding an oxidizing agent, a foaming agent and a reducing agent to generate active porous resin; the oxidant is ammonium persulfate, and the foaming agent is sodium bicarbonate; the reducing agent is sodium sulfite.
And step three, granulating, drying, screening, soaking in weak acid and washing the active porous resin to obtain the filling material.
3) The nitrogen removal system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the illumination adsorption device is arranged in the nitrification tank and comprises a transparent nylon membrane and a light-emitting device, the transparent nylon membrane wraps the light-emitting device, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch.
4) The controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch; when the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
In the embodiment, each cubic meter of sewage with COD of 800mg/L can generate 0.48 cubic meter of methane, namely, each kilogram of sewage with COD can generate 0.6 cubic meter of methane, and the methane yield of the sewage produced by the method is improved by over 75 percent compared with that produced by the traditional method. The domestic sewage treated by the method provided by the embodiment meets the comprehensive sewage discharge standard of the people's republic of China.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and embodiments shown and described herein, without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A wastewater treatment system, comprising:
1) the collecting tank is used for collecting domestic sewage, a mechanical grid is arranged at a water inlet of the collecting tank, and a water level monitoring device is arranged in the collecting tank;
2) the biogas production system comprises a deoxidizing pool and a biogas pool, wherein the deoxidizing pool is communicated with the collecting pool through a pipeline, the pipeline is provided with an electric control valve, the deoxidizing pool is internally provided with a stirring device, a heating device, a temperature sensing device and a first negative pressure generating device, and the first negative pressure generating device is used for removing oxygen in sewage; a first pump body is arranged between the methane tank and the deoxidizing tank to pump sewage in the deoxidizing tank into the methane tank, the methane tank is a closed cavity, the bottom of the methane tank is shaped like a pot bottom, a sludge discharge port is arranged at the bottom of the methane tank, and the methane tank is provided with a second negative pressure generating device for collecting gas in the methane tank; the microbial adsorption bed is soaked in the methane tank and comprises a shell piece and a filler, the shell piece wraps the filler, the shell piece is composed of a polypropylene hollow fiber membrane, a through hole is formed in the shell piece, the filler is spherical, and the preparation method of the filler comprises the following steps:
step one, mixing the raw materials in a mass ratio of 2-3: 1-2: 0.5-1: 0.5-1 of zeolite powder, activated carbon powder, talcum powder and microcrystalline cellulose are mixed uniformly to obtain mixed powder;
step two, under the action of ultrasonic waves and stirring, adding the mixed powder into the acrylic acid, adding a cross-linking agent, stirring until the cross-linking agent is completely dissolved, and then adding an oxidizing agent, a foaming agent and a reducing agent to generate active porous resin;
step three, granulating, drying, screening, soaking in weak acid and washing the active porous resin to obtain the filling material;
3) the denitrification system comprises a nitrification tank and an illumination adsorption device, wherein a second pump body is arranged between the nitrification tank and the methane tank to pump the methane liquid in the methane tank into the nitrification tank, the nitrification tank is internally provided with the illumination adsorption device, the illumination adsorption device comprises a transparent nylon membrane and a light-emitting device, the light-emitting device is wrapped by the transparent nylon membrane, chlorella grows on the surface of the transparent nylon membrane in an adherent manner, and the illumination adsorption device is electrically connected with an electric control switch; the device comprises a methane tank, a nitrification tank, an ozone generating device, a deodorization tank, a water tank;
4) the controller is electrically connected with the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch to control the starting or the closing of the water level monitoring device, the electric control valve, the stirring device, the heating device, the temperature sensing device, the first negative pressure generating device, the second negative pressure generating device, the first pump body, the second pump body and the electric control switch;
when the water level monitoring device detects that the water level of the collecting tank is higher than the preset water level in the storage, the controller controls the electric control valve to be opened so as to discharge the sewage in the collecting tank into the deoxidizing tank;
when the temperature sensing device detects that the water temperature in the deoxidizing tank is lower than the preset water temperature in the storage device, the controller controls the heating device to start so as to improve the water temperature;
when the temperature sensing device detects that the water temperature in the deoxidizing pool is higher than the preset water temperature in the storage device, the controller controls the heating device to be closed.
2. The sewage treatment system of claim 1, wherein the biogas digester comprises a first biogas digester and a second biogas digester, the oxygen removal tank is respectively communicated with the first biogas digester and the second biogas digester through pipelines, and a first organic matter detection device is arranged in the biogas digester and used for detecting the content of organic matter in the biogas digester; the first organic matter detection device is electrically connected with the controller;
when the organic matter detection device detects that organic matters in the methane tank are lower than a preset value in the storage, the controller controls the second pump body to be started so as to pump the methane liquid into the nitrification tank.
3. The wastewater treatment system of claim 1, wherein the sludge discharged from the sludge discharge port is used for raising earthworms, flies, or red-line worms.
4. The wastewater treatment system of claim 1, wherein sodium sulfite is added to the oxygen removal tank to remove oxygen from the wastewater in the oxygen removal tank.
5. The sewage treatment system of claim 1, wherein an air pressure sensing device is disposed in the methane tank, and the air pressure sensing device is electrically connected with the controller;
when the air pressure sensing device detects that the air pressure in the methane tank is higher than a preset value in the storage, the controller starts the second negative pressure generating device to collect the gas in the methane tank.
6. The wastewater treatment system according to claim 1, wherein said heating device is a solar heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485341.0A CN108658247B (en) | 2018-05-21 | 2018-05-21 | Sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485341.0A CN108658247B (en) | 2018-05-21 | 2018-05-21 | Sewage treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108658247A CN108658247A (en) | 2018-10-16 |
| CN108658247B true CN108658247B (en) | 2020-04-21 |
Family
ID=63776152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810485341.0A Active CN108658247B (en) | 2018-05-21 | 2018-05-21 | Sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108658247B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149897A (en) * | 2021-11-12 | 2022-03-08 | 安徽科技学院 | Kitchen garbage compost fermentation is with two-way preliminary treatment reaction unit of deodorization type |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701177B (en) * | 2009-07-24 | 2012-11-14 | 杜斌 | Mobile anaerobic fermentation container |
| CN102503033A (en) * | 2011-11-08 | 2012-06-20 | 南昌大学 | Technique for treating pig raising liquid waste by circular anaerobic reactor, sequencing batch biofilm, constructed wetland and facultative lagoon |
| CN103408190B (en) * | 2013-07-31 | 2016-06-22 | 惠州市兴牧畜牧发展有限公司 | Sewage disposal system |
| CN203946997U (en) * | 2014-05-30 | 2014-11-19 | 佛山市极速环保科技有限公司 | A kind of life in the countryside rubbish and Sewage treatment systems |
| CN206188576U (en) * | 2016-09-19 | 2017-05-24 | 东莞市粤丰废水处理有限公司 | Wastewater treatment device |
| CN206188575U (en) * | 2016-09-19 | 2017-05-24 | 东莞市粤丰废水处理有限公司 | Wastewater treatment system |
-
2018
- 2018-05-21 CN CN201810485341.0A patent/CN108658247B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108658247A (en) | 2018-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109912155A (en) | A kind of integrated technology and application method of livestock and poultry liquid dung harmless treatment | |
| CN108467118A (en) | A kind of method of immobilized algal-bacteria removal breeding wastewater nitrogen phosphorus | |
| CN101367594B (en) | Treatment method for cellulose fermentation wastewater | |
| CN103183447A (en) | Treatment method of piggery wastewater | |
| CN104528947A (en) | Modified bio-enzyme charcoal filler for sewage treatment | |
| CN110104874A (en) | A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant | |
| Ma et al. | Study of nitrogen removal efficiency of the filled bed reactors using alkali-treated corncobs-sulfur (mixotrophic) for treating the effluent from simulated urban wastewater plants | |
| CN110066831B (en) | Method for quickly preparing biogas from kitchen waste | |
| CN108658247B (en) | Sewage treatment system | |
| CN102286540B (en) | Method for performing nitrogen fixation for straw anaerobic fermentation by utilizing organic wastewater | |
| CN100441522C (en) | Oyster case active filtering material for sewage treatment and preparation method thereof | |
| CN211664792U (en) | Anaerobic-aerobic-microalgae coupling treatment device | |
| CN108675551B (en) | Urban domestic sewage treatment system | |
| CN108675550B (en) | High-efficiency domestic sewage treatment system | |
| US7144507B2 (en) | Dry cycle anaerobic digester | |
| CN207294509U (en) | A kind of aquaculture wastewater processing unit based on microorganism aerobic fermentation waste minimizing | |
| CN206457319U (en) | A kind of and oxygen MBR film domestic sewage treatment devices | |
| CN110015828A (en) | The two-stage anaerobic digestion processing method and processing system of activated sludge | |
| CN205170492U (en) | Domestic sewage purification system of unpowered aeration | |
| Kannah et al. | Valorization of Nutrient-Rich Urinal Wastewater by Microalgae for Biofuel Production | |
| CN106582557A (en) | Preparation method for grapefruit peel-based low-concentration chromium-containing wastewater adsorbent | |
| CN112010684A (en) | Organic garbage treatment process based on full-ecological coupling method | |
| CN105174456A (en) | Domestic sewage purification system capable of realizing unpowered aeration | |
| CN207391436U (en) | Electromagnetism strengthens the device of wood fibre liquefaction-jet stream cyclone multistage energy | |
| CN110467313A (en) | A kind of vessel sewage exhaust-gas treatment energy-saving and emission-reduction system based on immobilized microalgae |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200325 Address after: 532100 room 1, unit 2, building 2, 201 Sau Sau street, Xinning Town, Fusui County, Chongzuo, the Guangxi Zhuang Autonomous Region Applicant after: Zhong Wenyu Address before: 532100, room 1, building 26, National Road, 802 Songjiang Road, Xinning Town, Fusui County, Chongzuo, the Guangxi Zhuang Autonomous Region Applicant before: Li Xiafen |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211228 Address after: 017399 6th floor, Hengyuan water affairs office building, galutu Town, Wushen Banner, Ordos City, Inner Mongolia Autonomous Region Patentee after: Wushenqi Environmental Protection Investment Co.,Ltd. Address before: 532100 Room 201, unit 1, building 2, No.2 Xiuyue street, Xinning Town, Fusui County, Chongzuo City, Guangxi Zhuang Autonomous Region Patentee before: Zhong Wenyu |
|
| TR01 | Transfer of patent right |