CN117303576A - A bioaugmentation device and method for treating domestic sewage with an anaerobic ceramic membrane bioreactor - Google Patents
A bioaugmentation device and method for treating domestic sewage with an anaerobic ceramic membrane bioreactor Download PDFInfo
- Publication number
- CN117303576A CN117303576A CN202311263817.3A CN202311263817A CN117303576A CN 117303576 A CN117303576 A CN 117303576A CN 202311263817 A CN202311263817 A CN 202311263817A CN 117303576 A CN117303576 A CN 117303576A
- Authority
- CN
- China
- Prior art keywords
- reactor
- reaction chamber
- pipeline
- domestic sewage
- water outlet
- 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.)
- Pending
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
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
-
- 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
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2893—Particular arrangements for anaerobic reactors with biogas recycling
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/08—Production of synthetic natural gas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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]
-
- 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
- C02F2209/20—Total organic carbon [TOC]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a biological strengthening device and a biological strengthening method for treating domestic sewage by an anaerobic ceramic membrane bioreactor, belonging to the technical field of sewage treatment and environmental protection. The invention solves the problem of low methane in the biogas generated by AnMBR by taking domestic sewage as a substrate. The invention introduces YUAN-3 into AnMBR system without adding exogenous H 2 Under the condition of in-situ hydrogen production and methanation, the methane content of domestic sewage with lower organic matter content is improved, and the highest methane yield can reach 0.29L/g-COD. The biological strengthening system for treating AnMBR in domestic sewage provided by the invention does not need aeration, so that a large amount of energy consumption is saved, and methane generated in the reaction process can be used as a biofuel.
Description
Technical Field
The invention relates to a biological strengthening device and a biological strengthening method for treating domestic sewage by an anaerobic ceramic membrane bioreactor, belonging to the technical field of sewage treatment and environmental protection.
Background
Anaerobic Digestion (AD) technology can remarkably reduce the total energy requirement of wastewater treatment because aeration is not needed, and can realize reduction and recycling of wastesAnd stabilization, converting organic waste into methane (CH) 4 ) Hydrogen (H) 2 ) And volatile fatty acids, and the like. Anaerobic biological treatment is one of the important ways of sewage reclamation, but the anaerobic biological treatment generally has the problems of slow microorganism growth, serious biomass loss, long starting time and the like.
The anaerobic membrane bioreactor (AnMBR) is used as a novel sewage treatment mode, combines the advantages of anaerobic treatment and membrane separation, can prevent biomass loss, and can realize biogas (mainly methane) production while realizing efficient sewage treatment. Traditionally, wastewater treatment has focused on the removal of nutrients and organic content from wastewater, and in recent years, emphasis has been placed on the recovery of nutrients and valuable byproducts of wastewater treatment processes.
Most of the existing biological energy sources are high-load organic matters such as molasses wastewater, kitchen waste, straw and the like, the organic matter content of domestic sewage is low, and additional carbon sources are needed to be added or various means are utilized to improve the activity of microorganisms in the reactor in order to realize high-efficiency productivity. In general, biogas produced by AnMBR generally contains about 40% CO 2 Not only provides difficulty for the utilization of methane, but also causes the loss of carbon sources and environmental problems. CO in methane 2 The conversion can effectively improve the methane content and the heat value of the methane. In the anaerobic fermentation system, CO can be utilized by hydrogenotrophic methanogens 2 And H 2 Methane synthesis is therefore commonly achieved in the prior art by the introduction of exogenous H 2 Is to fix CO 2 So as to purify the biogas, thereby realizing the in-situ purification of the biogas. This process can convert CO 2 Is greatly improved in CH at the same time 4 Realizes the high-value utilization of the biogas.
But introduce exogenous H 2 The way in which (a) presents challenges for anaerobic fermentation economics, safety and technical requirements. Exogenous H 2 Is required to be generated through energy consumption, thus introducing exogenous H 2 Greatly increasing the cost of the fermentation process. And to achieve efficient introduction of exogenous H 2 The reactor needs to be designed and operated optimally to ensure exogenous H 2 Can be used forEvenly distributed and in sufficient contact with the substrate. In addition, H 2 Is a flammable gas which is introduced with attention to safety measures to prevent the occurrence of fire or explosion accidents. Thus, a method is provided which does not introduce exogenous H 2 A method that can increase the methane production of an AnMBR system is necessary.
Disclosure of Invention
Aiming at the problem that methane in methane generated by AnMBR is low by taking domestic sewage as a substrate in the prior art, the invention provides a bio-enhancement device and a method for treating domestic sewage by using an anaerobic ceramic membrane bioreactor, wherein exogenous H is not introduced 2 Improves methane yield of the AnMBR system.
The technical scheme of the invention is as follows:
the invention aims to provide a domestic sewage anaerobic fermentation biological strengthening device which is an anaerobic ceramic membrane bioreactor system, and comprises a reactor main body with a cuboid configuration, and a water inlet device, a water outlet device, an air inlet bag and an air collecting bag which are connected with the reactor main body through pipelines;
the reactor main body consists of a reactor outer wall 1, a reactor cover 9, a membrane component and suspended filler 6, wherein the membrane component and the suspended filler 6 are positioned in a cuboid reaction chamber with an opening above the reactor outer wall 1;
three pipelines communicated with the reaction chamber are arranged on one side of the outer wall 1 of the reactor, wherein the lowest part is a water inlet 2, the water inlet 2 is connected with a water inlet device through a pipeline, and the other two are sludge sampling ports; the outer wall 1 of the reactor opposite to the side is provided with two passages communicated with the reaction chamber, wherein the uppermost part is a water outlet 3, the water outlet 3 is connected with a water outlet device through a pipeline, and the other part is a sludge sampling port;
the reactor cover 9 is covered at the opening of the reaction chamber and is fixed by a sealing rubber strip and a confining screw 8 to seal the reaction chamber; the reactor cover 9 is provided with two gas pipelines, namely a gas collecting pipeline 14 and a gas inlet pipeline, the gas collecting pipeline is connected with the gas collecting bag through a pipeline, and the gas inlet pipeline is connected with the gas inlet bag 7 through a pipeline;
the membrane component comprises a ceramic membrane 5 and a ceramic membrane clamping groove 10, wherein the ceramic membrane 5 is fixed through the ceramic membrane clamping groove 10 and immersed in the reaction chamber.
Further defined, the ceramic membrane 5 is a flat plate Al 2 O 3 A water outlet is arranged on one side of the membrane, and the water outlet of the ceramic membrane is connected with the water outlet 3 of the reactor main body through a pipeline.
Further defined, the ceramic membrane 5 has a membrane surface area of 0.032m 2 The method comprises the steps of carrying out a first treatment on the surface of the The pure water flux at 1bar was 500L/m 2 。
Further, the outer wall 1 of the reactor and the cover 9 of the reactor are made of acrylic materials, and the volume of the reaction chamber is 1-1.2L.
Further defined, the suspended filler 6 is a K3 type suspended filler.
Further defined, the water inlet device comprises a peristaltic pump and a water inlet tank 4, the water inlet tank 4 is connected with the water inlet 2 through a pipeline, and the peristaltic pump 13 is arranged on the pipeline; the water outlet device comprises a peristaltic pump 13, a pressure gauge 12 and a water outlet tank, wherein the water outlet tank is sequentially connected with the pressure gauge 12 and the water outlet 3 through pipelines, and the peristaltic pump 13 is arranged between the pressure gauge 12 and the water outlet tank on the pipelines.
Further defined, the reactor body is placed on a magnetic stirrer 11 and a magnetic stirring rotor is placed in the reaction chamber.
Further defined, the inlet bag 7 contains nitrogen with a purity of 99.999%.
Further limited, the water inlet tank 4 is a screw glass bottle, the bottle cap is a three-way bottle cap, one of the bottle caps is a water inlet, one end of a pipeline is beveled, the pipeline is inserted into the bottom through the water inlet, the other end of the pipeline is connected to the water inlet of the reactor through a peristaltic pump, liquid in the water inlet tank is pumped into the reactor, the other one is an aeration port, the aeration port is connected with an air bag filled with nitrogen, and the last one is also connected with the air bag filled with nitrogen, so that the effect of balancing air pressure is achieved.
The second object of the invention is to provide a domestic sewage anaerobic fermentation biological strengthening method, which is specifically carried out by using the domestic sewage anaerobic fermentation biological strengthening device, and the operation process of the method is as follows:
firstly, adding activated sludge and suspended filler 6 into a reaction chamber, sealing the reaction chamber by using a reactor cover 9, aerating by using nitrogen to ensure that the reaction chamber is an anaerobic environment, conveying simulated domestic sewage in a water inlet tank 4 into the reaction chamber from the water inlet tank 4 by a peristaltic pump 13, changing water and sampling in a period of two days until the reactor is successfully started, and replacing the simulated domestic sewage by using actual domestic sewage after the reactor is stabilized;
culturing the Harbin ethanol producing bacillus YUAN-3 to 2-3 generations in a constant temperature shaking table, then adding the cultured Harbin ethanol producing bacillus YUAN-3 to 2-3 generations into a reaction chamber, and simultaneously adding glucose into the reaction chamber to realize bio-enhanced anaerobic fermentation.
Further defined, the activated sludge has an initial MLSS of 4.05g/L, MLVSS of 2.66g/L, and MLVSS/MLSS of 0.66.
Further defined, the COD concentration of the simulated domestic sewage is 300-500mg/L.
Further defined, the COD concentration of the real domestic sewage is 100-300mg/L.
Further defined, the reactor was placed in a medium greenhouse maintaining a temperature of 35±2 ℃.
The invention introduces YUAN-3 into AnMBR system without adding exogenous H 2 Improves the methane content of domestic sewage with lower organic matter content under the condition, and the highest methane yield can reach 0.29L/g-COD. Compared with the prior art, the method has the following beneficial effects:
(1) The Harbin ethanol producing bacillus Yuan-3 not only has better glycolysis performance, but also has excellent self-coagulation property, can be aggregated in a reactor, and is not easy to run off along with effluent.
(2) The reactor does not need aeration, so that a large amount of energy consumption is saved, and methane generated in the reaction process can be used as biofuel.
(3) The method provided by the invention has the advantages of smaller improvement on the AnMBR system, larger methane yield, simple operation and suitability for popularization and application.
Drawings
FIG. 1 is a schematic structural diagram of a biological enhancement device for anaerobic fermentation of domestic sewage;
FIG. 2 is a graph of the results of the gas production of example 1;
FIG. 3 is the pH change in the reactor of example 1;
FIG. 4 shows the COD change in the reactor of example 1;
FIG. 5 shows TOC variation in the reactor of example 1;
in the figure, the outer wall of the reactor is 1-the outer wall of the reactor is 2-the water inlet, 3-the water outlet, 4-the water inlet tank, 5-the ceramic membrane, 6-the suspended filler, 7-the air inlet bag, 8-the fastening screw, 9-the reactor cover, 10-the ceramic membrane clamping groove, 11-the magnetic stirrer, 12-the pressure gauge, 13-the peristaltic pump and 14-the air collecting pipeline.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials, reagents, methods and apparatus used, without any particular description, are those conventional in the art and are commercially available to those skilled in the art.
Example 1
This example designed and constructed a bio-augmentation system for an anaerobic ceramic membrane bioreactor (AnCMR) for domestic wastewater treatment, as shown in fig. 1, the reactor configuration was as follows: the whole reactor is made of acrylic material, has a cuboid structure, has an effective volume of 1.2L (10 multiplied by 12 multiplied by 5 cm), and adopts a mode of water inlet at the lower end of the left side and water outlet at the upper end of the right side.
The reactor body consists of a reactor outer wall 1, a reactor cover 9, a membrane assembly and suspended filler 6, wherein the membrane assembly and the suspended filler 6 are positioned in a cuboid reaction chamber with an opening above the reactor outer wall 1.
Three pipelines communicated with the reaction chamber are arranged on the left side of the outer wall 1 of the reactor, wherein the lowest part is a water inlet 2, the water inlet 2 is connected with a water inlet tank 4 through a pipeline, a peristaltic pump 13 is arranged on the pipeline, and the other two are sludge sampling ports which are clamped by a water stop clamp under the condition of not using the water stop clamp; the right side of the outer wall 1 of the reactor is provided with two passages communicated with the reaction chamber, wherein the uppermost water outlet 3 is connected with a pressure gauge 12 and a water outlet tank in sequence through pipelines, a peristaltic pump 13 is arranged on the pipelines and arranged between the pressure gauge 12 and the water outlet tank, the pressure gauge 12 detects transmembrane pressure difference (TMP), the other one is a sludge sampling port, and the sludge sampling port is clamped by a water stop clamp under the condition of not being used.
The reactor cover 9 is covered at the opening of the reaction chamber and is fixed by a detachable sealing rubber strip and a fastening screw 8, and the reaction chamber is sealed to ensure the tightness of the reactor. The reactor cover 9 is provided with two gas pipelines, namely a gas collecting pipeline 14 and a gas inlet pipeline, the gas collecting pipeline is connected with a gas collecting bag through a pipeline, and the gas inlet bag 7 is an air bag for collecting generated gas; the air inlet pipeline is connected with the air inlet bag 7 through a #17 pump pipe, the air inlet bag 7 is filled with nitrogen, the air pressure is balanced when necessary, and oxygen in the reactor is discharged.
The membrane component comprises a ceramic membrane 5 and a ceramic membrane clamping groove 10, wherein the ceramic membrane 5 is fixed through the ceramic membrane clamping groove 10 and immersed in the reaction chamber, and the ceramic membrane is kept stable in the reactor. The ceramic film 5 is a flat Al plate 2 O 3 A membrane having a size of 16X 10cm and a membrane surface area of 0.032m 2 The pure water flux was 500L/m 2 The right side is designed with a water outlet (under a pressure of 1 bar) which is connected with the water outlet 3 through a #25 pump tube. The suspended filler 6 is K3 type suspended filler.
In order to ensure a strict anaerobic environment in the reaction process, oxygen cannot enter in the water inlet process, the water inlet tank 4 is a 5L silk mouth glass bottle, the bottle cover is a three-way bottle cover, one of the three-way bottle covers is a water inlet, one end of a pipeline is subjected to beveling treatment and is inserted into the bottom through the water inlet, the other end of the pipeline is connected to the water inlet of the reactor through a peristaltic pump, liquid in the water inlet tank is pumped into the reactor, the other one is an aeration port, the aeration port is connected with an air bag filled with nitrogen, and the last one is also connected with the air bag filled with nitrogen, so that the effect of balancing air pressure is achieved. Every time the water is changed to the water inlet tank 4, the bottle is brushed clean, and then is aerated for 5min by using high-purity nitrogen.
In order to ensure that the mixed liquid is uniform in the reaction process, a magnetic rotor is added into the reaction chamber, and the whole reactor is put on a magnetic stirrer to operate.
When the bio-enhancement system of the anaerobic ceramic membrane bioreactor (AnCMR) for treating domestic sewage works, the system is placed in a medium-temperature chamber, and the temperature is kept at 35+/-2 ℃. 250mL of activated sludge is added into a reactor before the experiment starts, the activated sludge is secondary sedimentation tank sludge of a Harbin Wenchang sewage treatment plant, the activated sludge is dark brown flocculent sludge, the initial MLSS of the sludge is 4.05g/L, the MLVSS is 2.66g/L, and the MLVSS/MLSS is 0.66. And adding K3 suspended filler into the reactor, checking the tightness of the experimental device, and aerating by using high-purity nitrogen (purity is 99.999%) to ensure anaerobic environment. The water change and sampling period were two days, and aeration was performed on the water inlet tank 4 every time of water change. The reactor is fed with simulated domestic sewage, the COD concentration is about 500mg/L, the simulated domestic sewage is replaced by actual domestic sewage after the reactor is successfully started for a period of time, and the COD concentration of the actual domestic sewage is about 150mg/L. After the system is stably operated, 10g of the Harbin ethanol producing bacillus YUAN-3 which is cultured to 2 to 3 generations (after activation) in a constant temperature shaking table at 35 ℃ and 150rpm is added into a reactor, and meanwhile, glucose is added into a reaction chamber through water inflow.
In order to study the function of the Harbin ethanol producing bacillus YUAN-3 in the sewage treatment gas production process, after the Harbin ethanol producing bacillus YUAN-3 is added, the water inlet glucose concentration of the reactor is reduced from 2000mg/L gradient to 800mg/L, and the specific glucose concentration is changed, and the time for intermittently adding the YUAN-3 is shortenedAnd the gas yield is shown in FIG. 2, wherein the arrow in the figure indicates that the Yuan-3 is intermittently added in the steady operation period of the reactor, and the adding amount is 10g each time. As can be seen from FIG. 2, the reactor has good productivity effect, and the highest methane yield can reach 0.29L/g-COD. Intermittent feeding of YUAN-3, CH during steady operation of the reactor 4 The yield of (C) is greatly improved, and CH is effectively promoted 4 In particular, on day 84 after the addition of Yuan-3 on day 80 of the reactor operation 4 The yield is obviously improved by 98.3 percent compared with the 82 th day.
FIGS. 3 to 5 show changes in pH, COD and TOC during the operation of the reactor.
As can be seen from FIG. 3, the pH of the inlet water was always stabilized at about 7, while the pH of both the anaerobic outlet water and the membrane outlet water were very low, the pH of the anaerobic outlet water fluctuated between 3.34 and 4.75, the average pH was 4.12, the pH of the membrane outlet water fluctuated between 3.61 and 5.42, the average pH was 4.46, and the whole was acidic. This is because after adding Yuan-3 into the reactor, yuan-3 grows and metabolizes to produce acidic substances such as acetic acid, and the environment in the reactor is changed, which also indicates that Yuan-3 can grow in the reactor.
As is clear from FIG. 4, when the glucose concentration was 2000mg/L, the average inflow COD concentration was 2190mg/L, the average outflow COD concentration was 1062mg/L, and the average removal rate was 51.2%. When the glucose concentration is 1500mg/L, the average inflow COD concentration is 1718mg/L, the average outflow concentration is 727.8mg/L, and the average removal rate is 55.6%. When the glucose concentration is 800mg/L, the average inflow COD concentration is 1068mg/L, the average outflow concentration is 416mg/L, and the average removal rate is 61%. From this, it was found that the fluctuation of COD in the effluent of the reactor was large, and the removal rate was very unstable. In general, after the Yuan-3 is added, the reactor maintains a part of COD removing capacity, and the highest COD removing capacity can reach more than 80 percent, but anaerobic bacteria in the reactor cannot exert the greatest advantage due to the change of the habitat.
As is clear from FIG. 5, when the glucose concentration was 2000mg/L, the average TOC concentration of the inlet water was 1225.4mg/L, the average TOC concentration of the outlet water was 617mg/L, and the average removal rate was 47.8%. When the glucose concentration was 1500mg/L, the average TOC concentration of the inlet water was 792mg/L, the average TOC concentration of the outlet water was 404mg/L, and the average removal rate was 48%. When the glucose concentration is 800mg/L, the average TOC concentration of the inlet water is 494mg/L, the average TOC concentration of the outlet water is 257mg/L, the average removal rate is 48%, and the highest TOC removal rate can reach more than 60%.
While the invention has been described in terms of preferred embodiments, it is not intended to be limited thereto, but rather to enable any person skilled in the art to make various changes and modifications without departing from the spirit and scope of the present invention, which is therefore to be limited only by the appended claims.
Claims (10)
1. The domestic sewage anaerobic fermentation bio-enhancement device is characterized by being an anaerobic ceramic membrane bioreactor system, and comprises a reactor main body with a cuboid configuration, and a water inlet device, a water outlet device, an air inlet bag and an air collecting bag which are connected with the reactor main body through pipelines;
the reactor main body consists of a reactor outer wall, a reactor cover, a membrane component and suspended filler, wherein the membrane component and the suspended filler are positioned in a cuboid reaction chamber with an opening above the reactor outer wall;
three pipelines communicated with the reaction chamber are arranged on one side of the outer wall of the reactor, wherein the lowest part is a water inlet which is connected with a water inlet device through a pipeline, and the other two are sludge sampling ports; two passages communicated with the reaction chamber are arranged on the other side of the outer wall of the reactor opposite to the side, wherein the uppermost part is a water outlet which is connected with a water outlet device through a pipeline, and the other part is a sludge sampling port;
the reactor cover is covered at the opening of the reaction chamber and is fixed by a sealing rubber strip and a fastening screw to seal the reaction chamber; the reactor cover is provided with two gas pipelines, namely a gas collecting pipeline and an air inlet pipeline, the gas collecting pipeline is connected with the gas collecting bag through a pipeline, and the air inlet pipeline is connected with the air inlet bag through a pipeline;
the membrane component comprises a ceramic membrane and a ceramic membrane clamping groove, and the ceramic membrane is fixed through the ceramic membrane clamping groove and immersed in the reaction chamber.
2. The device of claim 1, wherein the ceramic membrane is flat Al 2 O 3 One side of the membrane is provided with a water outlet, and the water outlet of the ceramic membrane is connected with the water outlet of the reactor main body through a pipeline.
3. The apparatus of claim 1, wherein the reactor outer wall and the reactor cover are acrylic materials, and the volume of the reaction chamber is 1-1.2L.
4. The device of claim 1, wherein the water inlet device comprises a peristaltic pump and a water inlet tank, the water inlet tank is connected with the water inlet through a pipeline, and the peristaltic pump is arranged on the pipeline; the water outlet device comprises a peristaltic pump, a pressure gauge and a water outlet tank, wherein the water outlet tank is sequentially connected with the pressure gauge and the water outlet through pipelines, and the peristaltic pump is arranged on the pipelines and arranged between the pressure gauge and the water outlet tank.
5. The apparatus of claim 1, wherein the reactor body is disposed on a magnetic stirrer and the magnetic stirring rotor is disposed within the reaction chamber.
6. A domestic sewage anaerobic fermentation bioaugmentation method, characterized in that the method is carried out by using the device of any one of claims 1 to 5, and the operation process of the method is as follows:
firstly, adding activated sludge and suspended filler into a reaction chamber, sealing the reaction chamber by using a reactor cover, using nitrogen for aeration to ensure that the reaction chamber is an anaerobic environment, conveying simulated domestic sewage in a water inlet tank into the reaction chamber from the water inlet tank by a peristaltic pump, and changing water and sampling in a period of two days until the reactor is successfully started, and replacing the simulated domestic sewage by using actual domestic sewage after the reactor is stabilized;
culturing the Harbin ethanol producing bacillus YUAN-3 to 2-3 generations in a constant temperature shaking table, then adding the cultured Harbin ethanol producing bacillus YUAN-3 to 2-3 generations into a reaction chamber, and simultaneously adding glucose into the reaction chamber to realize bio-enhanced anaerobic fermentation.
7. The method of claim 6, wherein the activated sludge has an initial MLSS of 4.05g/L, an MLVSS of 2.66g/L, and an MLVSS/MLSS of 0.66.
8. The method according to claim 6, wherein the COD concentration of the simulated domestic sewage is 300-500mg/L.
9. The method according to claim 6, wherein the COD concentration of the real life sewage is 100-300mg/L.
10. The method according to claim 6, wherein the reactor is placed in a medium temperature chamber maintained at a temperature of 35.+ -. 2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311263817.3A CN117303576A (en) | 2023-09-27 | 2023-09-27 | A bioaugmentation device and method for treating domestic sewage with an anaerobic ceramic membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311263817.3A CN117303576A (en) | 2023-09-27 | 2023-09-27 | A bioaugmentation device and method for treating domestic sewage with an anaerobic ceramic membrane bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117303576A true CN117303576A (en) | 2023-12-29 |
Family
ID=89261562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311263817.3A Pending CN117303576A (en) | 2023-09-27 | 2023-09-27 | A bioaugmentation device and method for treating domestic sewage with an anaerobic ceramic membrane bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117303576A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204474488U (en) * | 2014-11-21 | 2015-07-15 | 北京市环境保护科学研究院 | A kind of immersion type anaerobic film bioreactor |
| CN105347475A (en) * | 2015-10-30 | 2016-02-24 | 东华大学 | Symmetric built-in anaerobic membrane bioreactor |
| US20190309256A1 (en) * | 2016-12-14 | 2019-10-10 | Syddansk Universitet | Membrane bioreactor for biological upgrading of biogas and conversion of co2 to methane |
| CN110628862A (en) * | 2019-09-24 | 2019-12-31 | 哈尔滨工业大学 | A self-aggregating granular sludge construction method for waste water cascade energy recovery |
-
2023
- 2023-09-27 CN CN202311263817.3A patent/CN117303576A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204474488U (en) * | 2014-11-21 | 2015-07-15 | 北京市环境保护科学研究院 | A kind of immersion type anaerobic film bioreactor |
| CN105347475A (en) * | 2015-10-30 | 2016-02-24 | 东华大学 | Symmetric built-in anaerobic membrane bioreactor |
| US20190309256A1 (en) * | 2016-12-14 | 2019-10-10 | Syddansk Universitet | Membrane bioreactor for biological upgrading of biogas and conversion of co2 to methane |
| CN110628862A (en) * | 2019-09-24 | 2019-12-31 | 哈尔滨工业大学 | A self-aggregating granular sludge construction method for waste water cascade energy recovery |
Non-Patent Citations (2)
| Title |
|---|
| XIAODI YUE 等: ""Treatment of domestic wastewater with an anaerobic ceramic membrane bioreactor (AnCMBR)"", 《WATER SCIENCE & TECHNOLOGY》, 16 December 2015 (2015-12-16), pages 2301 - 2307 * |
| ZHEN LI 等著: ""Metabolic regulation of ethanol‑type fermentation of anaerobic acidogenesis at different pH based on transcriptome analysis of Ethanoligenens harbinense"", 《BIOTECHNOLOGY FOR BIOFUELS》, 3 June 2020 (2020-06-03), pages 1 - 15 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10633622B2 (en) | Integrated system for hydrogen and methane production from industrial organic wastes and biomass | |
| Chen et al. | An anaerobic dynamic membrane bioreactor for enhancing sludge digestion: Impact of solids retention time on digestion efficacy | |
| Prasertsan et al. | Optimization and microbial community analysis for production of biohydrogen from palm oil mill effluent by thermophilic fermentative process | |
| EP3555258B1 (en) | Membrane bioreactor for biological upgrading of biogas and conversion of co2 to methane | |
| WO2016019677A1 (en) | Application of potamogeton crispus fermentation liquor in constructed wetland denitrification | |
| Detman et al. | Biohydrogen and biomethane (Biogas) production in the consecutive stages of anaerobic digestion of molasses | |
| CN112919736A (en) | Anaerobic denitrification and methane removal device and method, sewage treatment system and method | |
| Shi et al. | Performance evaluation and microbial community analysis of a continuous stirred tank reactor–anaerobic ceramic membrane bioreactor system for practical swine wastewater treatment | |
| Gassanova et al. | Fuel gases from organic wastes using membrane bioreactors | |
| WO2016027223A1 (en) | Anaerobic membrane bioreactor system | |
| KR101990059B1 (en) | Apparatus and method of producing high purity methane gas using gas recycle | |
| Borja et al. | Comparison of anaerobic filter and anaerobic contact process for olive mill wastewater previously fermented with Geotrichum candidum | |
| CN117303576A (en) | A bioaugmentation device and method for treating domestic sewage with an anaerobic ceramic membrane bioreactor | |
| CN103255182B (en) | Method and reaction system for simultaneously producing biogas and fatty acid | |
| CN209619122U (en) | A kind of anaerobic membrane bioreactor | |
| CN1075472C (en) | Two-phase anaerobic membrane-biologic system and process for treatment of waste water | |
| CN112707512A (en) | Method for producing biogas from palm oil production wastewater | |
| CN111875047A (en) | Wastewater treatment system and wastewater treatment process | |
| CN213570011U (en) | Novel integration MBR sewage treatment device | |
| CN217733073U (en) | Homoacetogenic continuous production test device | |
| CN117263376A (en) | Low-carbon sewage recycling device and method of microalgae coupled anaerobic membrane bioreactor | |
| CN120172566A (en) | A method and device for treating sewage using a bacterial-algal heterotrophic bacteria composite system | |
| CN205616640U (en) | Microbial reaction ware for sewage treatment | |
| JP2920531B1 (en) | Purification equipment using methane bacteria | |
| Malakahmad et al. | Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System |
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 |