A hydrogen production device using microorganism for continuous industrial wastewater treatment

Abstract

The application relates to a continuous industrial wastewater treatment biological hydrogen production device applied to the field of biological hydrogen production, which comprises an anaerobic fermentation tank, an electrodialysis processor, a photosynthetic fermentation tank, a gas collecting tank group and a sulfur-oxidizing biological filter tower, driving motors are installed at the top of the anaerobic fermentation tank and the photosynthetic fermentation tank, a bidirectional screw rod is installed in the anaerobic fermentation tank, variable isolation assemblies are connected to the surface of the bidirectional screw rod, the variable isolation assemblies comprise isolation plates, local meshing tooth pieces are slidably connected in arc-shaped guide grooves, isolation covers are installed on the surface of the isolation plates, rotating motors are installed in the isolation covers, gear pieces are connected to the output end of the rotating motors, folding pipes are connected through the inside of the upper isolation plate, the isolation plate assemblies driven by the bidirectional screw rod realize dynamic separation and continuous treatment of sludge and fermentation liquid in the anaerobic fermentation tank, and continuous operation of industrial wastewater treatment and biological hydrogen production is realized.

Description

Technical Field

[0001] This invention relates to a biohydrogen production device, and more particularly to a biohydrogen production device for continuous industrial wastewater treatment applied in the field of biohydrogen production. Background Technology

[0002] Hydrogen is a clean energy source. In bio-hydrogen production, hydrogen can be produced through dark fermentation, photo-fermentation, microbial electrolysis, and mixed methods. The sources can be industrial wastewater or agricultural residues such as tubers. It can not only treat wastewater but also provide energy for exchange, which is of great significance.

[0003] Chinese invention patent CN114107040B discloses a portable mixing and stirring enzymatic hydrolysis fermentation hydrogen production method and device. By setting two counter-rotating spiral stirring rods, the stirring rate and degree of enzymatic hydrolysis of biomass raw materials can be improved, thereby accelerating the contact degree between microorganisms and biomass raw materials and the degree of microbial metabolism, maximizing hydrogen production efficiency, and significantly improving the hydrogen production efficiency in the photofermentation biohydrogen production process.

[0004] In addition, Chinese patent CN119040104A discloses a continuous hydrogen production device and method for bio-fermentation, which can stir and turn the fermentation raw materials in the bio-fermentation tank through a rotating liquid outlet component. During the turning process, the fermentation liquid can be injected into different positions in the fermentation raw materials, so that the fermentation liquid is evenly introduced into the fermentation raw materials, realizing the integrated setting of turning and liquid addition.

[0005] Existing hydrogen production devices accelerate enzymatic hydrolysis through a single stirring operation. However, after fermentation, a period of interruption is required for wastewater treatment. This process is discontinuous, inefficient, and prone to carrying sludge particles during the transfer of fermentation broth, which affects the quality of the broth in the later stages of transfer. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to solve the problem of low efficiency caused by the need to interrupt the discharge of sewage after fermentation in the bio-hydrogen production device, and the problem of sludge entrainment affecting the treatment quality when the shallow fermentation liquid is sucked up.

[0007] To address the aforementioned problems, this invention provides a biological hydrogen production device for continuous industrial wastewater treatment, comprising an anaerobic fermenter, an electrodialysis processor, a photosynthetic fermenter, a gas collection tank group, and a sulfur oxidation biofilter. Both the anaerobic and photosynthetic fermenters are equipped with drive motors at their tops. A bidirectional screw is installed inside the anaerobic fermenter, and symmetrically arranged variable isolation components are connected to the surface of the bidirectional screw. Each variable isolation component includes an isolation plate connected to the surface of the bidirectional screw via a threaded sleeve. The isolation plate has an arc-shaped groove and an arc-shaped notch inside, and a partially meshing gear is slidably connected inside the arc-shaped groove. An isolation cover is installed on the surface of the isolation plate, and a rotating motor is installed inside the isolation cover. The output end of the rotating motor is connected to a gear located inside the isolation plate and meshing with the partially meshing gear. A folded pipe for injecting wastewater is connected through the interior of the upper isolation plate.

[0008] In the aforementioned biohydrogen production device for continuous industrial wastewater treatment, the dynamic separation and continuous treatment of sludge and fermentation liquid in the anaerobic digester are achieved through a bidirectional screw-driven isolation plate assembly, realizing the continuous operation of industrial wastewater treatment and biohydrogen production.

[0009] As a further supplement to this application, a sludge discharge pipe is installed through the bottom of the anaerobic fermenter, a bearing is installed above the sludge discharge pipe via a bracket, the bottom of the bidirectional screw is rotatably connected to the inside of the bearing, and a sludge pump is connected to the tail end of the sludge discharge pipe.

[0010] As a further supplement to this application, the anaerobic fermenter is equipped with symmetrically arranged constraint rods inside, and two isolation plates slide through the surface of the constraint rods.

[0011] As a further supplement to this application, the arc length of the arc notch is less than the arc length of the arc groove, and the arc length of the portion corresponding to the teeth on the surface of the locally meshing gear is greater than the arc length of the arc notch.

[0012] As a further supplement to this application, the anaerobic fermenter is equipped with a drain pipe for extracting fermentation broth. The outside of the anaerobic fermenter is connected to the drain pipe and the inlet of the electrodialysis processor via a suction pump. The outlet of the electrodialysis processor and the feed inlet of the photosynthetic fermenter are connected by a pipe through a sulfur oxidation biofilter. The top of the anaerobic fermenter is connected to an air supply pipe extending into the inside of the photosynthetic fermenter. The air supply pipe is equipped with a one-way valve and a waterproof and breathable block inside the pipe body inside the anaerobic fermenter. A polymer separation membrane is installed on the top of the photosynthetic fermenter, and a transfer pipe connecting the end of the polymer separation membrane to the gas collection tank group is connected above the polymer separation membrane.

[0013] As a further supplement to this application, both the anaerobic fermenter and the photosynthetic fermenter are provided with a feeding port at the top, and the output end of the drive motor at the top of the anaerobic fermenter is connected to the top end of the bidirectional screw, while the output end of the drive motor at the top of the photosynthetic fermenter is connected to a stirring component located inside the photosynthetic fermenter.

[0014] As a further supplement to this application, the inlet end of the drain pipe is connected to the surface of the drain pipe via a support rod, and a turbidity sensor connected to the suction pump is installed inside the drain pipe.

[0015] As a further supplement to this application, the upper partition plate consists of two parts, one part being a lifting part and the other part being a fixing part, wherein the edge of the lifting part includes an arc-shaped notch and an arc-shaped guide groove.

[0016] As a further supplement to this application, the lifting part has a strip groove inside, an electromagnetic block is installed inside the strip groove, a spring is installed on the surface of the electromagnetic block, a magnetic plug is connected to the tail end of the spring, and the surface of the fixing part has a plug interface that matches the magnetic plug.

[0017] In summary, the bidirectional screw-driven isolation plate assembly achieves dynamic separation and continuous treatment of sludge and fermentation broth within the anaerobic digester. The isolation plate switches between open and closed states through the cooperation of arc-shaped notches and locally meshing teeth. During the stirring phase, it remains open to promote mixing, while during the separation phase, it closes to form an independent chamber. When the upper isolation plate is raised, it carries the fermentation broth upward and transfers it to the electrodialysis processor through the drain pipe. When the lower isolation plate is pressed down, it squeezes the sludge and allows some of the sludge to flow back to the transfer space for pre-treatment with newly injected wastewater. The volatile fatty acid solution concentrated by the electrodialysis processor is desulfurized by the sulfur oxidation biofilter and then enters the photosynthetic fermenter for hydrogen production. The relative displacement of the lifting and fixing parts redistributes the shallow fermentation broth, ensuring complete transfer of the fermentation broth. This achieves continuous operation of industrial wastewater treatment and biological hydrogen production, avoiding the frequent shutdowns caused by incomplete solid-liquid separation in traditional processes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this application;

[0019] Figure 2 This is an internal view of the anaerobic fermenter according to the first embodiment of this application;

[0020] Figure 3 This is a schematic diagram showing the installation of the two isolation plates and two constraint rods according to the first embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the installation of the partially meshing gear and gear components according to the first embodiment of this application;

[0022] Figure 5 This is a top view of a partial meshing tooth, an arc-shaped notch, and a gear in the first embodiment of this application;

[0023] Figure 6 This is a diagram illustrating the state of the isolation plates moving away from each other and squeezing back a portion of the sludge for pretreatment by mixing with newly injected wastewater, as described in the first embodiment of this application.

[0024] Figure 7 This is a schematic diagram of the connection structure between the drain pipe and the surface of the isolation plate in the first embodiment of this application;

[0025] Figure 8 This is a structural diagram of the lifting part and the fixing part according to the second embodiment of this application;

[0026] Figure 9 This is an installation diagram of the electromagnetic block, spring member, and magnetic insert block according to the second embodiment of this application;

[0027] Figure 10 This is a schematic diagram of the lifting and transferring fermentation broth by the lifting section in the first embodiment of this application.

[0028] Explanation of the labels in the diagram:

[0029] 1. Anaerobic fermenter; 2. Electrodialysis processor; 3. Photosynthetic fermenter; 4. Gas collection tank assembly; 5. Drive motor; 6. Bidirectional screw; 7. Isolation plate; 8. Arc-shaped guide groove; 9. Arc-shaped notch; 10. Partial meshing gear; 11. Rotating motor; 12. Gear component; 13. Folded tube; 101. Constraint rod; 102. Gas supply pipe; 103. Drain pipe; 71. Lifting part; 72. Fixing part; 711. Electromagnetic block; 712. Spring component; 713. Magnetic insertion block; 301. Transfer pipe. Detailed Implementation

[0030] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0031] First implementation method:

[0032] Figures 1-4A biohydrogen production device for continuous industrial wastewater treatment is shown, comprising an anaerobic digester 1, an electrodialysis processor 2, a photosynthetic digester 3, a gas collection tank group 4, and a sulfur oxidation biofilter. Both the anaerobic digester 1 and the photosynthetic digester 3 are equipped with drive motors 5 at their tops. A bidirectional screw 6 is installed inside the anaerobic digester 1. Symmetrically arranged variable isolation components are connected to the surface of the bidirectional screw 6. The variable isolation components include isolation plates 7 connected to the surface of the bidirectional screw 6 via threaded sleeves. The isolation plates 7 have arc-shaped grooves 8 and arc-shaped notches 9 inside, and partially meshing gears 10 are slidably connected inside the arc-shaped grooves 8. An isolation cover is installed on the surface of the isolation plates 7, and a rotating motor 11 is installed inside the isolation cover. The output end of the rotating motor 11 is connected to a gear 12 located inside the isolation plates 7 and meshing with the partially meshing gears 10. A folded pipe 13 for injecting wastewater is connected through the interior of the upper isolation plate 7.

[0033] A sludge discharge pipe is installed through the bottom of the anaerobic fermenter 1. A shaft seat is installed above the sludge discharge pipe via a bracket. The bottom of the bidirectional screw 6 is rotatably connected to the inside of the shaft seat. A sludge pump is connected to the tail end of the sludge discharge pipe.

[0034] The anaerobic fermenter 1 is equipped with symmetrically arranged constraint rods 101, and two partition plates 7 slide through the surface of the constraint rods 101.

[0035] Figure 5 As shown, the arc length of the arc notch 9 is less than the arc length of the arc groove 8, and the arc length of the portion corresponding to the teeth on the surface of the partially meshing gear 10 is greater than the arc length of the arc notch 9.

[0036] Specifically, when using industrial wastewater (if it contains a large amount of heavy metal ions, the heavy metal ions need to be pretreated) for biological hydrogen production, it is necessary to first filter and pretreat the wastewater to intercept and pretreat the solid particles inside. Then, the wastewater is fed into the anaerobic fermenter 1 through the feeding port, and the bacteria required for anaerobic fermentation are added into the anaerobic fermenter 1 through the feeding port. After that, the feeding port is closed, and the corresponding anaerobic fermentation operation can be carried out.

[0037] During anaerobic fermentation, a variable isolation assembly consisting of a rotating motor 11, isolation plates 7, and arc-shaped guide grooves 8 and partially meshing gears 10 installed in the isolation plates 7 is used to adjust the exposure degree of the arc-shaped notch 9 in the isolation plates 7, thus achieving variable isolation operation. When performing variable isolation, the rotating motor 11 is used to drive the partially meshing gears 10 to rotate into the arc-shaped guide grooves 8, exposing the arc-shaped notch 9. At this time, both isolation plates 7 are in an open state. As the drive motor 5 on the anaerobic fermenter 1 is started, it drives the bidirectional screw 6 to rotate, which in turn drives the two isolation plates 7 to reciprocate, thereby achieving agitation within the anaerobic fermenter 1 and promoting anaerobic fermentation. At the same time, sulfur-oxidizing bacteria and methane inhibitors are added to oxidize hydrogen sulfide gas that may be generated in the anaerobic fermenter 1 and inhibit methane generation, preventing it from transferring into the photosynthetic fermenter 3.

[0038] After anaerobic fermentation, the sludge is in the lower layer, and the fermentation liquid containing volatile fatty acids is in the upper layer. Because the industrial wastewater is pretreated, the volume of the sludge after anaerobic fermentation is smaller than the volume of the fermentation liquid. During the settling process, the vertical distance between the two isolation plates 7 is at its shortest. Then, the drive motor 5 stops rotating. When it is necessary to transfer the fermentation liquid in the upper layer, the rotating motor 11 needs to be started first to drive the partial meshing tooth 10 to rotate, thereby filling the originally exposed arc-shaped gap 9. However, the filling degree of the arc-shaped gap 9 in the lower isolation plate 7 is weaker than that in the upper arc-shaped gap 9, so that the upper isolation plate 7 is in a completely closed state, and the lower isolation plate 7 is in a partially exposed state (at this time, the partial meshing tooth 10 does not completely close the arc-shaped gap 9). Then, the drive motor 5 is restarted, gradually increasing the distance between the two isolation plates 7. As the upper isolation plate 7 moves upward, the upper fermentation liquid is lifted and transferred to the electrodialysis processor 2 using a suction pump and drain pipe 103. The lower isolation plate 7 gradually moves downward, squeezing and transferring some of the lower sludge into the space formed by the two isolation plates 7 (hereinafter referred to as the transfer space), resulting in some sludge residue. Then, the lower rotating motor 11 is restarted, making the lower isolation plate 7 completely closed. Subsequently, new pretreated industrial wastewater is injected into the transfer space through the folded pipe 13, mixing with the remaining sludge. The hydrolytic acidifying bacteria in the remaining sludge can treat the newly injected industrial wastewater, shortening the subsequent hydrolysis acidification time (e.g., Figure 6 As shown in the figure, after the fermentation broth is transferred, open the feeding port and continue to inject industrial wastewater.

[0039] The anaerobic fermenter 1 is equipped with a drain pipe 103 for extracting fermentation liquid. The outside of the anaerobic fermenter 1 is connected to the drain pipe 103 and the inlet of the electrodialysis processor 2 via a suction pump. The outlet of the electrodialysis processor 2 and the feed inlet of the photosynthetic fermenter 3 are connected by a sulfur oxidation biofilter. The top of the anaerobic fermenter 1 is connected to an air supply pipe 102 that extends into the inside of the photosynthetic fermenter 3. The air supply pipe 102 is located inside the pipe body of the anaerobic fermenter 1 and is equipped with a one-way valve and a waterproof and breathable block. The top of the photosynthetic fermenter 3 is equipped with a polymer separation membrane, and the top of the polymer separation membrane is connected to a transfer pipe 301 that connects to the gas collection tank group 4.

[0040] Both the anaerobic fermenter 1 and the photosynthetic fermenter 3 are equipped with feeding ports at the top. The output end of the drive motor 5 at the top of the anaerobic fermenter 1 is connected to the top end of the bidirectional screw 6. The output end of the drive motor 5 at the top of the photosynthetic fermenter 3 is connected to the stirring element located inside the photosynthetic fermenter 3.

[0041] Specifically, during the process of the sludge being squeezed under the lower isolation plate 7, the sludge pump is started simultaneously to extract and transfer the sludge.

[0042] By treating the fermentation broth with the electrodialysis processor 2, the concentration of volatile fatty acids in the fermentation broth in the cathode chamber can be increased, which promotes photosynthetic hydrogen production in the subsequent photosynthetic fermenter 3. The concentration of concentrated volatile fatty acids is below the peak value of the promoting concentration. If the concentration exceeds the peak value, it will have an inhibitory effect. The concentration data of the concentrated volatile fatty acids can be obtained by installing an instrument to detect the concentration of volatile fatty acids at the outlet of the electrodialysis processor 2. (If the concentration of concentrated volatile fatty acids exceeds the concentration of the promoting effect, a dilution operation can be performed. That is, a water injection pipe is installed on the surface of the feed inlet of the photosynthetic fermenter 3, and a proportional valve is installed on the surface of the pipe used to receive the concentrated volatile fatty acids at the feed inlet for dilution treatment.) In addition, ammonium ions in the fermentation broth will be accumulated in the anode chamber, which can prevent them from entering the interior of the photosynthetic fermenter 3 and inhibiting photosynthetic hydrogen production.

[0043] The carbon dioxide and hydrogen generated in the anaerobic fermenter 1 enter the photosynthetic fermenter 3 through the gas supply pipe 102 to supplement the carbon source for subsequent photosynthetic operations. The fermentation broth, after being concentrated by the electrodialysis processor 2, is desulfurized by the sulfur oxidation biofilter. It can also inhibit the methanogenic bacteria remaining in the fermentation broth, reducing the impact of methanogenic bacteria on the hydrogen production rate during subsequent photosynthetic hydrogen production.

[0044] The interior of the photosynthetic fermenter 3 is equipped with a light layer (the light intensity of the lower light layer is stronger because the light transmittance of the concentrated volatile fatty acids is poor, so the light intensity of the bottom layer needs to be adjusted and strengthened) and the bacteria required for photosynthetic hydrogen production. Then, the concentrated volatile fatty acids put into the photosynthetic fermenter 3 are used to produce hydrogen. The obtained hydrogen is transferred to the gas collection tank group 4 for collection. During the hydrogen collection process, other gases will be present inside the photosynthetic fermenter 3. Carbon dioxide, oxygen and other gases are intercepted by a polymer separation membrane (polyimide membrane can be used), allowing hydrogen to pass through the polymer separation membrane, thereby ensuring that the collected hydrogen has a high purity.

[0045] Figure 7 The inlet end of the drain pipe 103 is connected to the surface of the drain pipe 103 via a support rod, and a turbidity sensor connected to the suction pump is installed inside the drain pipe 103.

[0046] Specifically, during the settling process, some sludge particles may settle on the surface of the upper isolation plate 7. To avoid interference to the electrodialysis processor 2 caused by the extraction and transfer of the upper fermentation liquid to the electrodialysis processor 2, a turbidity sensor is used for monitoring. If the turbidity data in the fermentation liquid entering the drain pipe 103 exceeds the safe threshold for the liquid processed by the electrodialysis processor 2, the suction pump is turned off to stop the transfer of the fermentation liquid.

[0047] Second implementation method:

[0048] Figures 8-9 The upper partition plate 7 is shown to be composed of two parts, one part being a lifting part 71 and the other part being a fixing part 72. The edge of the lifting part 71 includes an arc-shaped notch 9 and an arc-shaped guide groove 8.

[0049] The lifting part 71 has a strip groove inside, an electromagnetic block 711 is installed inside the strip groove, a spring 712 is installed on the surface of the electromagnetic block 711, a magnetic plug 713 is connected to the tail end of the spring 712, and the surface of the fixing part 72 has a plug interface that matches the magnetic plug 713.

[0050] Unlike the first embodiment, this embodiment addresses the issue of residual sludge particles on the surface of the upper isolation plate 7 by performing a collection operation when the depth of the fermentation liquid on the surface of the upper isolation plate 7 is relatively shallow. This ensures the complete transfer of the fermentation liquid, as the amount of fermentation liquid on the top surface of the upper isolation plate 7 is considerable (the bottom area is large, so even if the depth is shallow, the volume of the fermentation liquid is still large). If the suction is stopped directly, it will lead to waste, but if the suction continues, more sludge particles will be introduced, affecting the subsequent electrodialysis processor 2.

[0051] When the turbidity sensor detects a small amount of sludge particles in the liquid flowing through the drain pipe 103, under the premise of complete settling, it indicates that the vertical distance between the fermentation liquid and the sludge layer settled on the surface of the upper isolation plate 7 is relatively close. The electromagnetic block 711 is activated, causing the magnetic insert 713 to disengage from the insertion interface. Then, the drive motor 5 is activated, moving the lifting part 71 upwards a short distance, maintaining a height difference between the fixed part 72 and the lifting part 71 while retaining a vertical overlap. Subsequently, the shallow fermentation liquid on the surface of the lifting part 71 will transfer to the surface of the fixed part 72 under the influence of the height difference, increasing the depth of the fermentation liquid on the surface of the fixed part 72, thereby achieving a more comprehensive transfer of the fermentation liquid (e.g., ...). Figure 10 As shown in the diagram, during this process, the lower partition plate 7 moves downwards and continues to compress.

[0052] In this embodiment, the area ratio difference between the lifting part 71 and the fixed part 72 is large, so the fermentation liquid can effectively increase the depth during transfer. When the lifting part 71 returns to be flush with the fixed part 72, the electromagnetic block 711 is turned off, so that the magnetic plug 713 is inserted into the plug interface, thereby keeping the fixed part 72 and the lifting part 71 in a state of synchronous movement.

[0053] In addition, the isolation plate 7, the bidirectional screw 6, the partially meshing gear 10, the isolation cover, the gear 12, and other related components in this invention are all treated with anti-corrosion and wear-resistant measures to ensure their service life. Furthermore, the industrial wastewater is first subjected to anaerobic fermentation treatment to decompose the large molecules in it into small molecules that are easily utilized by photosynthesis, thereby improving the hydrogen production efficiency.

[0054] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A continuous industrial wastewater treatment and hydrogen production device, comprising an anaerobic fermentation tank (1), an electrodialysis processor (2), a photosynthetic fermentation tank (3), a gas collection tank group (4), and a sulfur-oxidizing biofilter tower, characterized in that: The top of the anaerobic fermentation tank (1) and the photosynthetic fermentation tank (3) is provided with a driving motor (5), the inside of the anaerobic fermentation tank (1) is provided with a bidirectional screw (6), the surface of the bidirectional screw (6) is connected with symmetrically arranged variable isolation assemblies, the variable isolation assemblies comprise an isolation plate (7) connected to the surface of the bidirectional screw (6) through a threaded sleeve, the inside of the isolation plate (7) is provided with an arc-shaped guide groove (8) and an arc-shaped notch (9), a partial meshing tooth piece (10) is slidably connected to the inside of the arc-shaped guide groove (8), the surface of the isolation plate (7) is provided with an isolation cover, the inside of the isolation cover is provided with a rotating motor (11), the output end of the rotating motor (11) is connected with a gear piece (12) located in the inside of the isolation plate (7) and meshing with the partial meshing tooth piece (10), and the inside of the upper isolation plate (7) is penetratedly connected with a folding pipe (13) for injecting wastewater.

2. The apparatus for producing hydrogen by biologically treating continuous industrial wastewater according to claim 1, wherein: The bottom of the anaerobic fermentation tank (1) is penetratedly provided with a sludge discharge pipe, the upper portion of the sludge discharge pipe is provided with a shaft seat through a support, the bottom of the bidirectional screw (6) is rotatably connected to the inside of the shaft seat, and the tail end of the sludge discharge pipe is connected with a sludge pump.

3. The apparatus for producing hydrogen by biologically decomposing industrial waste water continuously according to claim 1, wherein: The inside of the anaerobic fermentation tank (1) is provided with symmetrically arranged constraint rods (101), and the two isolation plates (7) are slidably penetrated to the surface of the constraint rods (101).

4. The apparatus for producing hydrogen from industrial wastewater according to claim 1, wherein: The arc length of the arc-shaped notch (9) is smaller than the arc length of the arc-shaped guide groove (8), and the arc length of the corresponding part of the surface gear tooth of the partial meshing tooth piece (10) is greater than the arc length of the arc-shaped notch (9).

5. The apparatus for producing hydrogen by biologically decomposing industrial waste water continuously according to claim 3, wherein: The inside of the anaerobic fermentation tank (1) is provided with a liquid discharge pipe (103) for extracting fermentation liquid, the outside of the anaerobic fermentation tank (1) is connected with the liquid inlet end of the electrodialysis processor (2) through a suction pump, the liquid outlet end of the electrodialysis processor (2) and the feed inlet of the photosynthetic fermentation tank (3) are connected through a pipeline of a sulfur-oxidizing biological filter tower, the top of the anaerobic fermentation tank (1) is connected with a gas feeding pipe (102) extending into the inside of the photosynthetic fermentation tank (3), a one-way valve and a waterproof air-permeable block are installed in the pipe body inside the gas feeding pipe (102) in the anaerobic fermentation tank (1), the top of the photosynthetic fermentation tank (3) is provided with a high-molecular separation membrane, and the upper portion of the high-molecular separation membrane is connected with an adapter pipe (301) with the tail end connected with a gas collecting tank group (4).

6. The apparatus for producing hydrogen from industrial wastewater according to claim 1, wherein: The top of the anaerobic fermentation tank (1) and the photosynthetic fermentation tank (3) is provided with a driving motor (5), the inside of the anaerobic fermentation tank (1) is provided with a bidirectional screw (6), the surface of the bidirectional screw (6) is connected with symmetrically arranged variable isolation assemblies, the variable isolation assemblies comprise an isolation plate (7) connected to the surface of the bidirectional screw (6) through a threaded sleeve, the inside of the isolation plate (7) is provided with an arc-shaped guide groove (8) and an arc-shaped notch (9), a partial meshing tooth piece (10) is slidably connected to the inside of the arc-shaped guide groove (8), the surface of the isolation plate (7) is provided with an isolation cover, the inside of the isolation cover is provided with a rotating motor (11), the output end of the rotating motor (11) is connected with a gear piece (12) located in the inside of the isolation plate (7) and meshing with the partial meshing tooth piece (10), and the inside of the upper isolation plate (7) is penetratedly connected with a folding pipe (13) for injecting wastewater.

7. The apparatus for producing hydrogen from industrial wastewater according to claim 5, wherein: The top of the anaerobic fermentation tank (1) and the photosynthetic fermentation tank (3) is provided with a driving motor (5), the inside of the anaerobic fermentation tank (1) is provided with a bidirectional screw (6), the surface of the bidirectional screw (6) is connected with symmetrically arranged variable isolation assemblies, the variable isolation assemblies comprise an isolation plate (7) connected to the surface of the bidirectional screw (6) through a threaded sleeve, the inside of the isolation plate (7) is provided with an arc-shaped guide groove (8) and an arc-shaped notch (9), a partial meshing tooth piece (10) is slidably connected to the inside of the arc-shaped guide groove (8), the surface of the isolation plate (7) is provided with an isolation cover, the inside of the isolation cover is provided with a rotating motor (11), the output end of the rotating motor (11) is connected with a gear piece (12) located in the inside of the isolation plate (7) and meshing with the partial meshing tooth piece (10), and the inside of the upper isolation plate (7) is penetratedly connected with a folding pipe (13) for injecting wastewater.

8. The apparatus for producing hydrogen from industrial wastewater according to claim 7, wherein: The top of the anaerobic fermentation tank (1) and the photosynthetic fermentation tank (3) is provided with a driving motor (5), the inside of the anaerobic fermentation tank (1) is provided with a bidirectional screw (6), the surface of the bidirectional screw (6) is connected with symmetrically arranged variable isolation assemblies, the variable isolation assemblies comprise an isolation plate (7) connected to the surface of the bidirectional screw (6) through a threaded sleeve, the inside of the isolation plate (7) is provided with an arc-shaped guide groove (8) and an arc-shaped notch (9), a partial meshing tooth piece (10) is slidably connected to the inside of the arc-shaped guide groove (8), the surface of the isolation plate (7) is provided with an isolation cover, the inside of the isolation cover is provided with a rotating motor (11), the output end of the rotating motor (11) is connected with a gear piece (12) located in the inside of the isolation plate (7) and meshing with the partial meshing tooth piece (10), and the inside of the upper isolation plate (7) is penetratedly connected with a folding pipe (13) for injecting wastewater.

9. The apparatus for producing hydrogen from industrial wastewater according to claim 8, wherein: The lifting part (71) is internally provided with a strip-shaped slot, an electromagnetic block (711) is installed in the strip-shaped slot, a spring piece (712) is installed on the surface of the electromagnetic block (711), a magnetic moving plug (713) is connected to the tail end of the spring piece (712), and the surface of the fixing part (72) is provided with a plug interface matched with the magnetic moving plug (713).

Images