CN212425806U - Microbial fuel cell pretreatment system - Google Patents
Microbial fuel cell pretreatment system Download PDFInfo
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- CN212425806U CN212425806U CN202021080684.8U CN202021080684U CN212425806U CN 212425806 U CN212425806 U CN 212425806U CN 202021080684 U CN202021080684 U CN 202021080684U CN 212425806 U CN212425806 U CN 212425806U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model discloses a microbial fuel cell pretreatment systems, a serial communication port, including rubbish pretreatment unit, rubbish pretreatment unit includes a equalizing basin, and the equalizing basin has a rubbish material to insert mouthful and the export is connect to the rubbish material, still is connected with an inlet channel on the equalizing basin, and the equalizing basin adds the container with an acid solution simultaneously and an alkali solution adds the container and links up mutually. The utility model discloses can realize the preliminary treatment to kitchen garbage for microbial fuel cell is higher to kitchen garbage's treatment effeciency, and the treatment effect is better.
Description
Technical Field
The utility model relates to a refuse treatment technical field, concretely relates to microbial fuel cell pretreatment system for kitchen garbage disposal.
Background
Kitchen waste is used as an important component of household waste and is generated in the daily life consumption process of residents. With the new global situation of population growth, rapid economic development, improvement of people's living and consumption level and the like, the growth of kitchen waste becomes a key problem of environmental protection. The proportion of the kitchen waste in 20 tons of domestic waste generated in the world every year reaches 34-53%. The cleaning and transportation amount of domestic garbage in China in 2018 reaches 22801.8 ten thousand tons, and is increased by 44.27% compared with that in 2010. The components of the kitchen waste are related to regional dietary culture, consumption habits and the like, and the main components of the kitchen waste can comprise rice flour, meat, animal and vegetable oil, vegetables, fruit peel, eggshell, bones, plastics, tissues and the like. The water content of the kitchen waste is high; the organic matter content is rich, the ammonia nitrogen is high, and the COD is high; the oil and salt contents are high; and (5) the characteristic of easy decay and odor. If not properly treated, it may cause serious environmental, social and economic problems, such as disease transmission, pollution of ground water and surface water, generation of odor, etc. But considering the chemical composition of the kitchen waste, the kitchen waste can be recycled as a potential resource to a certain extent. For a long time, many countries have faced the problem of how to properly dispose of the kitchen waste and convert it into usable resources and energy.
At present, domestic and foreign treatment technologies for kitchen waste mainly comprise landfill, incineration and aerobic composting. The landfill method is a main technology for achieving harmless treatment of domestic garbage by using underground microbial degradation, and has the advantages of simple operation, low cost, large treatment capacity and the like. The incineration method is a mode of decomposing organic matters by high-temperature oxidation, so that the waste is reduced, and simultaneously, energy is generated for power generation, heat supply and the like. However, with the intensive research and application, the disadvantages of the two traditional garbage treatment methods become more obvious. Landfill site treatment capacity is limited, and leachate and odor are easily generated to pollute underground water and soil. In addition, the water content of the kitchen waste is generally 80-90%, so that the requirement of incineration power generation cannot be met, and a large amount of harmful gas, dust and other secondary pollution can be generated. Aerobic composting is a process in which organic matter is degraded by aerobic microorganisms under aerobic conditions and humic substances with fertility are formed. But the compost treatment occupies a large area and has a long treatment period. And the kitchen waste has high oil and salt content, can inhibit the growth of microorganisms in the composting process, and reduces the treatment capacity.
The microbial fuel cell is a device for directly converting chemical energy in organic matters into electric energy by using microbes. The basic working principle is that under the anaerobic environment of the anode chamber, organic matters are decomposed under the action of microorganisms to release electrons and protons, the electrons are effectively transferred between biological components and the anode by virtue of a proper electron transfer mediator and are transferred to the cathode through an external circuit to form current, the protons are transferred to the cathode through a proton exchange membrane, and an oxidant (generally oxygen) obtains the electrons at the cathode and is reduced to combine with the protons to form water. The microbial fuel cell is an anaerobic device which adopts microbes as a catalyst, oxidizes pollutants in a substrate and generates electric energy, and can be applied to the field of kitchen waste treatment. Because a large amount of organic matters such as saccharides and proteins exist in the kitchen waste, the organic matters are ideal substrates of the microbial fuel cell. The double-chamber microbial fuel cell consists of an anode chamber and a cathode chamber. The interior of the anode chamber and the interior of the cathode chamber are separated by a proton exchange membrane, and the exterior is connected by a lead. The anode of the microbial fuel cell should be made of a material with good electrical conductivity and suitable for the attachment and growth of microorganisms, and the cathode should also be made of a material with excellent electrical conductivity. The anode chamber is controlled to be an anaerobic environment, microorganisms with the best reaction effect are inoculated in the anode chamber, and the anaerobic microorganisms are utilized to carry out the reaction of oxidizing substrates to generate a large amount of electrons, protons and corresponding metabolites. The generated electrons are transported to the cathode through an external circuit, and protons migrate to the cathode compartment through a proton exchange membrane inside the fuel cell. And carrying out aeration treatment in the cathode chamber, and carrying out reduction reaction on the electron acceptor, electrons and protons reaching the cathode on the surface of the cathode. The microbial fuel cell technology has the advantages of mild reaction conditions, no pollution, small occupied area, capability of synchronously removing organic pollutants and directly generating electric energy and the like, and is a research hotspot for treating kitchen waste and developing energy sources. The kitchen waste treatment system based on the double-chamber microbial fuel cell can effectively improve the treatment effect, and the novel technology integrating pollutant removal and electric energy generation is realized by optimizing the parameters of the microbial fuel cell and adjusting the reaction conditions. The prior art generally focuses on the treatment of kitchen wastewater by using a microbial fuel cell, or the treatment of kitchen waste by using a single-chamber microbial fuel cell, and rarely uses a double-chamber microbial fuel cell to directly treat solid-liquid mixed kitchen waste.
CN110492161A discloses a two-chamber microbial fuel cell system constructed by using kitchen waste as a substrate, which comprises a box, a proton exchange membrane, an anode electrode bar, a cathode electrode bar, and a lead wire. The kitchen waste is used as a substrate to construct a double-chamber microbial fuel cell system. Simple microbial power generation treatment can be realized on kitchen garbage, economic benefits are generated, and pollution is reduced. However, the patent technology still has the following defects: 1, the system has poor continuity and controllability, so that the garbage treatment efficiency is low. 2, the electrode bars are directly used as the anode and the cathode, so that the power generation efficiency is low, and the treatment efficiency is indirectly low. 3, a pretreatment system is lacked, so that the garbage treatment effect is limited.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a microbiological fuel cell pretreatment system which can carry out pretreatment on a microbiological fuel cell of kitchen waste so as to improve the efficiency and the effect of the cell on the treatment of the kitchen waste.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a microbial fuel cell pretreatment system, its characterized in that includes rubbish pretreatment unit, and rubbish pretreatment unit includes a equalizing basin, and the equalizing basin has a rubbish material to insert the mouth and the rubbish material connects the export, still is connected with a water intake pipe on the equalizing basin, and the equalizing basin links up with an acid solution interpolation container and an alkali solution interpolation container simultaneously.
Therefore, after the kitchen waste microbial fuel cell is additionally provided with the pretreatment system, the kitchen waste enters the regulating tank for regulation before entering the anode chamber of the cell, and water with a certain proportion is added during regulation to dilute the concentration of the kitchen waste so as to be beneficial to subsequent microbial cell reaction. And then adjusting the pH value of the solution by using an acid solution adding container and an alkali solution adding container, wherein the pH value is usually controlled to be 6.6-7.5. After the regulated garbage materials enter the anode chamber and the cathode chamber of the cell, the microbial reaction can be better facilitated, and the reaction efficiency and effect are greatly improved.
Further, still be provided with agitating unit in the equalizing basin, agitating unit and control center link to each other.
Therefore, the garbage can be uniformly stirred, and the adjusting effect is improved.
Furthermore, a pH value sensor is also arranged in the adjusting tank and connected with the control center.
Therefore, the pH value in the regulating reservoir can be detected in real time, and the regulating effect is better ensured.
Furthermore, the water inlet pipeline is connected with the supernatant outlet end of the upper part of the sewage disposal pool externally connected with the cathode chamber.
Therefore, the supernatant after the discharged materials after battery treatment are precipitated can be recycled, so that water resources are saved, and the supernatant contains part of microbial strains, thereby being beneficial to improving the subsequent reaction effect.
Furthermore, an electric heating module and a temperature sensor are also arranged in the regulating tank, and the electric heating module and the temperature sensor are connected with a control center.
Therefore, the temperature in the regulating tank can be controlled, the temperature is usually controlled to be 20-30 ℃, and the water control time of the kitchen waste in the regulating tank can be controlled to be 8-24 hours. Thus, the pre-fermentation is carried out in the regulating tank, and the microbial reaction effect of the subsequent garbage materials in the anode chamber and the cathode chamber is improved.
Furthermore, the garbage pretreatment unit also comprises a garbage sorting machine for removing plastic products and metal products, the outlet end of the garbage sorting machine is connected with the inlet of the mechanical first-stage crusher, the outlet of the mechanical first-stage crusher is connected with the inlet of the mechanical second-stage crusher, and the outlet of the mechanical second-stage crusher is connected with the garbage material inlet of the regulating tank.
Therefore, the garbage is sorted and crushed in two stages, solid objects which cannot participate in the reaction can be better removed, and the subsequent microbial reaction effect can be improved after the garbage is well crushed. Wherein rubbish sorting machine, mechanical one-level rubbing crusher and mechanical second grade rubbing crusher are ripe current product, only need mechanical second grade rubbing crusher's crushing effect to be greater than mechanical one-level rubbing crusher. The specific structure will not be described in detail herein. Meanwhile, during implementation, the garbage sorting machine, the mechanical primary crusher, the mechanical secondary crusher and the adjusting tank can be connected through the belt conveying device respectively, so that the conveying of materials and the connection between the devices are realized. This is well established prior art and is not described herein.
Furthermore, the pretreatment system also comprises an anaerobic microorganism culture system, the anaerobic microorganism culture system comprises a residual activated sludge culture container, the upper end of the residual activated sludge culture container is arranged in a closed mode, the residual activated sludge culture container is provided with a sludge access end used for accessing residual activated sludge, and the output end of the residual activated sludge culture container is connected with the anode chamber.
So that the excess activated sludge of the sewage plant treatment plant can be accessed by means of the excess activated sludge culture container. Then the residual activated sludge is pretreated and cultured by anaerobic acclimation in a closed container.
Further, the residual activated sludge cultivation container is also provided with a nutrient solution access end for accessing nutrient solution.
Thus, a nutrient source can be added to improve the anaerobic microorganism cultivation effect. The nutrient solution added during anaerobic culture can be C6H12O6、NH4Cl and NaH2PO4Is prepared by the following steps. Therefore, the method is more beneficial to culturing the sludge rich in the electrogenesis microorganisms and pouring the sludge into the anode chamber, thereby greatly improving the microbial reaction efficiency and effect in the anode chamber.
Furthermore, the output end of the residual activated sludge cultivation container is connected with the inlet end of a sludge centrifugal dehydration device, and the sludge outlet end of the sludge centrifugal dehydration device is connected with the anode chamber.
After the cultured sludge is dehydrated, sludge sediment rich in electrogenesis microorganisms is obtained and then used for anode chamber inoculation, so that the inoculation effect can be better controlled, and the interference of redundant moisture on the microbial reaction in the anode chamber is avoided. The mass ratio of the inoculated sludge to the bottom substance in the anode chamber can be controlled to be 1: 10.
to sum up, the utility model discloses can realize the preliminary treatment to kitchen garbage for microbial fuel cell is higher to kitchen garbage's treatment effeciency, and the treatment effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an anode chamber, a cathode chamber and a sewage tank part of a double-chamber microbial fuel cell adopting the structure of the present invention in an embodiment, wherein a solid line with an arrow indicates a pipeline, and the arrow indicates a material flow direction inside the pipeline.
Fig. 2 is a schematic diagram of a garbage pretreatment unit of a two-chamber microbial fuel cell according to an embodiment of the present invention.
FIG. 3 is a schematic block diagram of the electrical connection of each component of the electrical control part in the dual-chamber microbial fuel cell in the specific embodiment.
Detailed Description
The following description will be made in detail with reference to a two-chamber microbial fuel cell using the structure of the present invention and its accompanying drawings.
As shown in fig. 1 to 3, a two-chamber microbial fuel cell for treating kitchen waste comprises an anode chamber 1 and a cathode chamber 2 which are arranged in parallel, a proton exchange membrane 3 is arranged between the anode chamber 1 and the cathode chamber 2 at an interval, an anode is further arranged at the middle position in the anode chamber 1, a cathode is further arranged at the middle position in the cathode chamber, and an electricity storage circuit or an electricity utilization circuit is connected between the output ends of the anode and the cathode; wherein, an aeration device 4 is also arranged in the cathode chamber.
In this way, when the apparatus is used, the kitchen waste which has been treated and diluted to a flowable state is introduced into the anode chamber and the cathode chamber, anaerobic microorganisms are inoculated into the anode chamber, and nitrifying bacteria are inoculated into the cathode chamber. So that the kitchen waste is used as a substrate to carry out oxidation reaction in the anode chamber. Protons generated by the reaction in the anode chamber migrate to the cathode chamber through a proton exchange membrane inside the microbial fuel cell. The electrons on the anode are transferred from an external circuit (an electricity storage circuit or a power utilization circuit) to the cathode to generate current. The device is further used for supplying power or storing power. Wherein, still be provided with aeration equipment in the cathode chamber and can realize the cathode chamber oxygen suppliment, accelerate the reaction rate of nitrifying bacteria in it, and then improved refuse treatment rate. In operation, as shown in fig. 1, the aeration device is connected with an air source 5 through an air transmission pipeline.
Wherein, aeration equipment 4 sets up in cathode chamber bottom position, and the indoor upper end top of cathode still communicates and is provided with exhaust duct 6.
Therefore, the aeration effect can be better improved, and nitrogen generated in the cathode chamber after the aeration reaction can be discharged outside through the exhaust pipeline.
An anode material inlet 7 is formed in the lower end position in the anode chamber 1, an anode material outlet 8 is formed in the upper end position in the anode chamber, a cathode material inlet 9 is formed in the lower end position in the cathode chamber, and a cathode material outlet 10 is formed in the upper end position in the cathode chamber; the anode material receiving and outlet 8 is connected with the cathode material inlet 10 through a pipeline, a conveying pump 11 is further arranged on the pipeline connected with the anode material inlet or the pipeline between the anode material receiving and outlet and the cathode material inlet or the pipeline connected with the cathode material outlet, the conveying pump 11 is connected with a control center 12, and the control center 12 is connected with the aeration device 4.
Thus, the control center can control the aeration device to intermittently aerate to supply oxygen to the cathode chamber. Under the aerobic condition, nitrification reaction is carried out under the action of nitrifying bacteria to oxidize ammonia nitrogen into nitrate nitrogen, the concentration of the ammonia nitrogen is further reduced, and the proper proportion of dissolved oxygen in the cathode chamber at 3 mg/L-6mg/L can be controlled through an aeration device under the aerobic condition, so that the nitrification reaction process is facilitated. And stopping aeration, and reducing the nitrate nitrogen in the cathode chamber into nitrogen by using electrons transmitted to the cathode by the anaerobic microorganisms by using an external circuit as an electron acceptor. After the reaction is finished, the conveying pump can be controlled to be started through the control center, the reacted materials are discharged, and meanwhile, the next batch of materials are discharged to enter, so that the intermittent automatic reaction processing is realized. The continuity and the automation of the garbage treatment are improved.
Wherein, an oxygen concentration detection sensor 13 is also arranged in the cathode chamber, and the oxygen concentration detection sensor 13 is connected with the control center 12. Therefore, the oxygen content concentration in the cathode chamber can be detected in real time, the opening of the aeration device is feedback controlled, and the nitration reaction effect in the aeration device is better ensured.
Wherein, an ammonia nitrogen sensor 14 is also arranged in the cathode chamber, and the ammonia nitrogen sensor 14 is connected with the control center 12. Like this, can real-time detection negative pole indoor ammonia nitrogen concentration, control reaction effect, the back in time controls the delivery pump after the reaction finishes and discharges the material and leading-in next batch of material, realizes automatic intermittent type formula continuous processing.
The anode and cathode electrode structure comprises a conductive core rod 15 vertically arranged in the center, and a plurality of layers of carbon fiber materials 16 which are outwards arranged along the periphery are fixedly connected outside the core rod 15.
Therefore, the conduction of electrons to the electrode through the carbon fiber material can be better facilitated, and the reaction effect and efficiency are improved.
Wherein the core rod 15 is made of a plurality of strands of metal titanium wire material by weaving. Has better conductive effect and is convenient to weave and fix the carbon fiber material on the conductive fabric.
Wherein, the cathode material receiving and outlet is connected to a sewage pool 17 through a sewage pipeline, and the sewage pipeline is provided with a backflow pipeline 18 connected to the cathode material access port 9.
Therefore, the sewage discharging pool is convenient for discharging the processed garbage materials outside, and the reflux pipeline arranged at the same time can reflux a part of garbage materials to be used as a nitrifying bacteria source of the next garbage materials entering the cathode chamber. Is favorable for the rapid propagation of nitrobacteria in the cathode chamber and improves the treatment efficiency.
The device also comprises a pretreatment system, wherein the pretreatment system comprises a garbage pretreatment unit, the garbage pretreatment unit comprises a regulating pool 19, the regulating pool 19 is provided with a garbage material inlet and a garbage material outlet, the regulating pool 19 is also connected with a water inlet pipeline 20, and the regulating pool is simultaneously connected with an acid solution adding container 21 and an alkali solution adding container 22.
Therefore, before entering the anode chamber of the cell, the garbage enters the regulating tank for regulation, and a certain proportion of water is added during regulation to dilute the concentration of the garbage so as to facilitate the subsequent microbial cell reaction. And then adjusting the pH value of the solution by using an acid solution adding container and an alkali solution adding container, wherein the pH value is usually controlled to be 6.6-7.5. After the regulated garbage materials enter the anode chamber and the cathode chamber of the cell, the microbial reaction can be better facilitated, and the reaction efficiency and effect are greatly improved.
Wherein, still be provided with agitating unit 23 in the equalizing basin, agitating unit 23 and control center 12 link to each other.
Therefore, the garbage can be uniformly stirred, and the adjusting effect is improved.
Wherein, still be provided with pH value sensor 24 in the equalizing basin, pH value sensor 24 links to each other with control center.
Therefore, the pH value in the regulating reservoir can be detected in real time, and the regulating effect is better ensured.
Wherein, the water inlet pipe 20 is connected with the water outlet end of the supernatant on the upper part of the sewage disposal pool externally connected with the cathode chamber (not shown in the figure).
Therefore, the supernatant after the discharged materials after battery treatment are precipitated can be recycled, so that water resources are saved, and the supernatant contains part of microbial strains, thereby being beneficial to improving the subsequent reaction effect.
Wherein, an electric heating module 26 and a temperature sensor 25 are also arranged in the regulating reservoir, and the electric heating module 26 and the temperature sensor 25 are connected with the control center 12.
Therefore, the temperature in the regulating tank can be controlled, the temperature is usually controlled to be 20-30 ℃, and the water control time of the kitchen waste in the regulating tank can be controlled to be 8-24 hours. Thus, the pre-fermentation is carried out in the regulating tank, and the microbial reaction effect of the subsequent garbage materials in the anode chamber and the cathode chamber is improved.
The garbage pretreatment unit further comprises a garbage sorting machine 27 for removing plastic products and metal products, the outlet end of the garbage sorting machine 27 is connected with the inlet of the mechanical first-stage crusher 28, the outlet of the mechanical first-stage crusher 28 is connected with the inlet of the mechanical second-stage crusher 29, and the outlet of the mechanical second-stage crusher 29 is connected with the garbage material inlet of the adjusting tank 19.
Therefore, the garbage is sorted and crushed in two stages, solid objects which cannot participate in the reaction can be better removed, and the subsequent microbial reaction effect can be improved after the garbage is well crushed. Wherein rubbish sorting machine, mechanical one-level rubbing crusher and mechanical second grade rubbing crusher are ripe current product, only need mechanical second grade rubbing crusher's crushing effect to be greater than mechanical one-level rubbing crusher. The specific structure will not be described in detail herein. Meanwhile, during implementation, the garbage sorting machine, the mechanical primary crusher, the mechanical secondary crusher and the adjusting tank can be connected through the belt conveying device respectively, so that the conveying of materials and the connection between the devices are realized. This is well established prior art and is not described herein.
Wherein, pretreatment systems still includes anaerobic microorganism cultivation system, anaerobic microorganism cultivation system includes that a surplus activated sludge cultivates container 30, and surplus activated sludge cultivates container 30 upper end closed setting, and surplus activated sludge cultivates container 30 has a mud access end that is used for inserting surplus activated sludge, still has a nutrient solution access end that is used for inserting the nutrient solution, and surplus activated sludge cultivates container 30 output and anode chamber and links up.
So that the excess activated sludge of the sewage plant treatment plant can be accessed by means of the excess activated sludge culture container. Then the residual activated sludge is pretreated and cultured by anaerobic acclimation in a closed container. The nutrient solution added during anaerobic culture can be C6H12O6、NH4Cl and NaH2PO4Is prepared by the following steps. Therefore, the method is more beneficial to culturing the sludge rich in the electrogenesis microorganisms and pouring the sludge into the anode chamber, thereby greatly improving the microbial reaction efficiency and effect in the anode chamber.
Wherein, the output end of the residual activated sludge cultivating container 30 is connected with the inlet end of a sludge centrifugal dehydration device 31, and the sludge outlet end of the sludge centrifugal dehydration device 31 is connected with the anode chamber 2.
After the cultured sludge is dehydrated, sludge sediment rich in electrogenesis microorganisms is obtained and then used for anode chamber inoculation, so that the inoculation effect can be better controlled, and the interference of redundant moisture on the microbial reaction in the anode chamber is avoided. The mass ratio of the inoculated sludge to the bottom substance in the anode chamber can be controlled to be 1: 10.
Claims (10)
1. the utility model provides a microbial fuel cell pretreatment system, its characterized in that includes rubbish pretreatment unit, and rubbish pretreatment unit includes a equalizing basin, and the equalizing basin has a rubbish material to insert the mouth and the rubbish material connects the export, still is connected with a water intake pipe on the equalizing basin, and the equalizing basin links up with an acid solution interpolation container and an alkali solution interpolation container simultaneously.
2. The pretreatment system for a microbial fuel cell according to claim 1, wherein a stirring device is further provided in the conditioning tank, and the stirring device is connected to the control center.
3. The pretreatment system for a microbial fuel cell according to claim 1, wherein a pH sensor is further disposed in the conditioning tank, and the pH sensor is connected to the control center.
4. The pretreatment system for a microbial fuel cell according to claim 1, wherein the water inlet pipe is connected to an outlet end of the supernatant at an upper portion of the wastewater tank externally connected to the cathode chamber.
5. The microbial fuel cell pretreatment system of claim 1, wherein an electric heating module is further disposed in the conditioning tank, and a temperature sensor is further disposed in the conditioning tank, and the electric heating module and the temperature sensor are connected to a control center.
6. The microbial fuel cell pretreatment system of claim 1, wherein the waste pretreatment unit further comprises a waste sorter for removing plastic and metal products, an outlet of the waste sorter is coupled to an inlet of the primary mechanical pulverizer, an outlet of the primary mechanical pulverizer is coupled to an inlet of the secondary mechanical pulverizer, and an outlet of the secondary mechanical pulverizer is coupled to a waste material inlet of the conditioning tank.
7. The microbial fuel cell pretreatment system of claim 6, wherein the pulverizing effect of the mechanical secondary pulverizer is greater than the pulverizing effect of the mechanical primary pulverizer.
8. The microbial fuel cell pretreatment system according to claim 1, wherein the pretreatment system further comprises an anaerobic microorganism cultivation system, the anaerobic microorganism cultivation system comprises a residual activated sludge cultivation vessel, an upper end of the residual activated sludge cultivation vessel is closed, the residual activated sludge cultivation vessel has a sludge inlet for receiving residual activated sludge, and an output end of the residual activated sludge cultivation vessel is connected with the anode chamber.
9. The microbial fuel cell pretreatment system of claim 8, wherein the excess activated sludge incubation container further has a nutrient solution access port for accessing a nutrient solution.
10. The microbial fuel cell pretreatment system of claim 8, wherein an output end of the excess activated sludge incubation container is connected to an inlet end of a sludge centrifugal dehydration means, and a sludge outlet end of the sludge centrifugal dehydration means is connected to the anode chamber.
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