Biomass renewable energy sustainable supply device and method

Abstract

The present application relates to a kind of biomass renewable energy sustainability supply device and method, belong to water treatment technical field, by anaerobic fermentation processing organic waste, reduce the pollution caused by organic waste accumulation to environment, while reducing the use of landfill, reduce the emission of greenhouse gases such as methane, the synergistic effect of gas stirring module and circulating fan improves fermentation efficiency, reduces energy consumption, thereby reducing the environmental impact in the process of energy exploitation and use, by sludge separation module to carry out solid-liquid separation, reduce the pressure of solid waste to water treatment system, also reduce the suspended solids in liquid, so that water treatment process is more efficient and environmental protection, biomass gas produced by fermentation can be used as energy, fermentation liquor can be used as fertilizer or further processing and reuse, realize the recycling of resources, reduce the waste of resources, this biomass renewable energy sustainability supply device effectively reduces the environmental burden in the process of water treatment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water treatment, and particularly relates to a biomass renewable energy sustainable supply device and method. BACKGROUND

[0002] It is very important to explore an environmentally friendly and efficient water treatment and energy recovery system, and the present application provides a biomass renewable energy sustainable supply device and method, which can realize sustainable use of energy, effectively recover biomass energy while treating wastewater, avoid many technical defects of traditional renewable energy, continuously provide green and low-carbon biomass energy supply for the city, and realize the recycling of water resources and the low-carbon development of the economy and society. SUMMARY

[0003] In order to solve the above problems in the prior art, the present application provides a biomass renewable energy sustainable supply device and method, which solves the problem that the water treatment process in the prior art causes additional burden on the environment.

[0004] The purpose of the present application can be achieved by the following technical scheme: a biomass renewable energy sustainable supply device, comprising an anaerobic fermentation device and an energy electrochemical reactor, wherein the biomass gas or fermentation liquid generated by the anaerobic fermentation device is delivered to the energy electrochemical reactor, the anaerobic fermentation device comprises an anaerobic fermentation reactor, a gas stirring module arranged at the bottom of the anaerobic fermentation reactor, a mud-water separation module and a circulating fan arranged at the top of the anaerobic fermentation reactor, respectively, the mud-water separation module is used for solid-liquid separation before and after the fermentation process, the circulating fan drives the gas to enter the anaerobic fermentation reactor through the gas stirring module, the gas stirring module generates a strong stirring effect, so that the liquid and organic matter in the reactor are fully mixed, and the gas stirring module, the mud-water separation module and the circulating fan work together to realize sustainable use of energy.

[0005] As a further scheme of the present application, the gas stirring module and the circulating fan are connected by a first pipeline, and the gas provided by the circulating fan enters the gas stirring module through the first pipeline.

[0006] As a further scheme of the present application, a plurality of inclined plates are arranged in the mud-water separation module.

[0007] As a further scheme of the present application, the mud-water separation module is connected with the inlet and outlet of the anaerobic fermentation reactor through a second pipeline.

[0008] As a further scheme of the present application, the outlet of the circulating fan is connected with a ventilation pipeline arranged above the anaerobic fermentation reactor, so as to ensure the circulation of the gas in the whole reactor.

[0009] As a further scheme of the present application, the sludge-water separation module realizes solid-liquid separation through physical action.

[0010] A biomass renewable energy sustainable supply method, comprising the following steps:

[0011] S1: solid-liquid separation, the sewage is first subjected to solid-liquid separation process to separate solid and clear liquid;

[0012] S2: clear liquid treatment, the separated clear liquid is sent to a clear liquid anaerobic fermentation reactor for anaerobic fermentation to produce biogas for recycling;

[0013] S3: solid treatment, the separated solid is further subjected to organic matter and inorganic matter separation, the separated organic matter is sent to a high-solid anaerobic fermentation reactor for anaerobic fermentation to produce biogas;

[0014] S4: inorganic matter drying treatment, the separated inorganic matter is mixed with the solid after thermal hydrolysis and enters a matter drying unit for drying treatment, and the dried inorganic matter can be used as a resource such as slag;

[0015] S5: organic matter drying and cracking, the organic matter entering the matter drying unit is subjected to drying treatment and then cracking treatment to produce cracking gas and heat energy, and the cracking gas and oxygen in the air are subjected to electrochemical reaction in an energy electrochemical reactor to be converted into electric energy and heat energy;

[0016] S6: heat energy recycling, the heat energy generated in the cracking process and the heat energy generated in the energy electrochemical reactor are used for heat supply of the bioenergy disposal system;

[0017] S7: solid resourceization, the solid after drying and cracking can be made into carbon rods or activated carbon for resource utilization, and the heat energy generated by combustion of the carbon rods is supplied to the heat supply system of the bioenergy disposal system;

[0018] S8: activated carbon recycling, the generated activated carbon is used to adsorb biomass in the clear liquid produced after fermentation of the clear liquid anaerobic fermentation reactor and the high-solid anaerobic fermentation reactor, to improve the biomass energy conversion efficiency;

[0019] S9: residual sludge treatment, the residual sludge after fermentation of the clear liquid anaerobic fermentation reactor and the high-solid anaerobic fermentation reactor is subjected to thermal hydrolysis treatment, and the clear liquid rich in high-concentration organic matter after thermal hydrolysis is returned to the clear liquid anaerobic fermentation reactor for continuous anaerobic fermentation;

[0020] S10: resource recycling and recycling, the biomass and water resources in the fermented clear liquid are recycled as resources for continuous recycling;

[0021] S11: Electric energy and heat energy output, the biogas and cracking gas generated by the liquid anaerobic fermentation reactor, high-solid anaerobic fermentation reactor and split-quality dry decomposition center are converted into electric energy and heat energy with oxygen in the air in the energy electrochemical reactor, part of the electric energy and heat energy is used to ensure the sustainable operation of the bioenergy disposal system, and the other part of the electric energy and heat energy can be outputted to the outside, reducing the dependence of the city on external power supply;

[0022] S12: Using the liquid fermentation, high-solid fermentation and split-quality dry decomposition biological energy treatment device, all the biomass in the city is recycled to convert into electric energy and heat energy, so that the city realizes energy self-sufficiency.

[0023] As a further scheme of the present application, the anaerobic fermentation reactor adopts a complete-mix anaerobic reactor.

[0024] As a further scheme of the present application, biomass is added outside the complete-mix anaerobic reactor to improve the biogas yield.

[0025] As a further scheme of the present application, the effluent after liquid anaerobic fermentation and high-solid anaerobic fermentation in S2-S3 is selected to recycle biomass organic carbon by using activated carbon and double membrane, and is recycled to the solid-liquid separation unit to continue to participate in the reciprocating cycle anaerobic fermentation to generate biogas.

[0026] The present application has the following advantages:

[0027] The organic waste is treated by anaerobic fermentation, which reduces the pollution caused by the accumulation of organic waste to the environment, reduces the use of landfills, reduces the emission of greenhouse gases such as methane, and improves the fermentation efficiency through the cooperation of the gas stirring module and the circulating fan, thereby reducing energy consumption and reducing the environmental impact during energy exploration and use. The solid-liquid separation module is used for solid-liquid separation, which reduces the pressure of solid waste on the water treatment system and also reduces the suspended solids in the liquid, so that the water treatment process is more efficient and environmentally friendly. The biomass gas generated by fermentation can be used as energy, and the fermentation liquid can be used as fertilizer or further processed for reuse, realizing the recycling of resources and reducing waste. Therefore, the biomass renewable energy sustainable supply device effectively reduces the environmental burden in the water treatment process through integrated innovation. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0029] Figure 1 The structure diagram of the anaerobic fermentation device of the present application is shown in the figure.

[0030] Figure 2 The working principle diagram of the biomass renewable energy sustainable supply device of the present application is shown in the figure.

[0031] Figure 3 The power and heat output principle of the present application.

[0032] Explanation of main component symbols:

[0033] In the figure: 1, gas stirring module; 2, sludge separation module; 3, circulating fan; 4, inclined plate; 5, anaerobic fermentation reactor. DETAILED DESCRIPTION

[0034] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined invention purposes, the specific embodiments, structures, features and effects according to the present application are described in detail below in combination with the drawings and preferred embodiments.

[0035] Please refer to Figure 1 - Figure 3 The embodiment provides a biomass renewable energy sustainable supply device, which comprises an anaerobic fermentation device and an energy electrochemical reactor, and biomass gas or fermentation liquid generated by the anaerobic fermentation device is transported to the energy electrochemical reactor. The anaerobic fermentation device comprises an anaerobic fermentation reactor 5, a gas stirring module 1 arranged at the bottom of the anaerobic fermentation reactor 5, a sludge separation module 2 and a circulating fan 3 arranged at the top of the anaerobic fermentation reactor 5 respectively, the sludge separation module 2 is used for solid-liquid separation before and after the fermentation process, and the circulating fan 3 drives gas to enter the anaerobic fermentation reactor 5 through the gas stirring module 1. The gas stirring module 1 can make the liquid and organic matter in the reactor fully mixed by generating a strong stirring effect. The gas stirring module 1, the sludge separation module 2 and the circulating fan 3 work together to make the energy sustainable.

[0036] The anaerobic fermentation device can convert organic waste into biomass gas and fermentation liquid. This process is carried out under anaerobic conditions, which not only reduces the emission of malodorous gas generated in the degradation process of organic matter, but also reduces the emission of greenhouse gases. The gas stirring module 1 arranged at the bottom of the anaerobic fermentation reactor 5 generates a strong stirring effect by the flow of gas driven by the circulating fan 3, which helps to improve the fermentation efficiency and reduce the energy consumption in the fermentation process, thereby reducing the impact on the environment. The sludge separation module 2 at the top is used for solid-liquid separation before and after the fermentation process, which effectively separates the solid residues and the liquid, reduces the solid waste treatment burden in the subsequent treatment process, and the solid residues can be used as fertilizer or further processed, while the liquid can be used for the next round of fermentation or discharged after treatment. In addition, the circulating fan 3 not only helps the stirring module to generate stirring effect, but also optimizes the gas flow in the fermentation process, improves the utilization efficiency of the gas, and reduces the impact of gas emission on the environment.

[0037] Currently, water resource treatment and reuse is the key to sustainable development, while water treatment technology can effectively purify wastewater, but its treatment process and energy consumption may cause additional environmental burden in terms of energy, chemical use, greenhouse gas emissions, sludge treatment, equipment maintenance, water resource consumption and land use, etc. To this end, by anaerobic fermentation of organic waste, the pollution caused by the accumulation of organic waste to the environment is reduced, and the use of landfill is reduced, and the emission of greenhouse gases such as methane is reduced, the synergistic effect of the gas stirring module 1 and the circulating fan 3 improves the fermentation efficiency and reduces the energy consumption, thereby reducing the environmental impact during the exploitation and use of energy, and the solid-liquid separation module 2 is used for solid-liquid separation, which reduces the pressure of solid waste on the water treatment system, and also reduces the suspended solids in the liquid, making the water treatment process more efficient and environmentally friendly, the biomass gas produced by fermentation can be used as energy, and the fermentation liquid can be used as fertilizer or further processed for reuse, realizing the recycling of resources and reducing waste. Therefore, this biomass renewable energy sustainable supply device effectively reduces the environmental burden in the water treatment process through integrated innovation.

[0038] Due to uneven gas distribution, hot spots or cold spots may occur during biomass decomposition, affecting the overall treatment effect. To this end, in an embodiment, the gas stirring module 1 and the circulating fan 3 are connected by a first pipeline, the gas provided by the circulating fan 3 enters the gas stirring module 1 through the first pipeline, and the gas stirring module 1 is stirred by the gas provided by the circulating fan 3, which can more effectively mix the biomass raw materials and microorganisms, promote the decomposition and conversion of biomass, and the circulating fan 3 can ensure uniform distribution of gas in the pipeline, avoid local gas concentration being too high or too low, and ensure uniform treatment of biomass. In addition, by optimizing gas stirring, the efficiency of biomass conversion into renewable energy can be improved, thereby improving the energy utilization efficiency of the entire system. Overall, by optimizing the connection of gas stirring and circulating fan 3, the efficiency of the biomass renewable energy supply device is improved, the energy consumption and operating cost are reduced, and the stability and maintainability of the system are also enhanced.

[0039] In order to further improve the mud-water separation effect, reduce the treatment cost, and at the same time improve the operation efficiency and reliability of the equipment, in an embodiment, a plurality of inclined plates 4 are arranged in the mud-water separation module 2. The inclined plate 4 can increase the contact area of the mud and water, so that the solid particles in the mud-water mixture are more easily settled under the action of gravity when flowing on the inclined plate 4, thereby improving the separation efficiency. At the same time, the design of the inclined plate 4 makes the mud-water mixture form a thin liquid film on the inclined plate 4, reducing the mutual interference between particles, so that the settling velocity of solid particles is accelerated.

[0040] In order to better reduce the additional burden on the environment during water treatment, in an embodiment, the sludge-water separation module 2 is connected to the inlet and outlet of the anaerobic fermentation reactor 5 through a second pipeline, the outlet of the circulating fan 3 is connected to the ventilation pipeline arranged above the anaerobic fermentation reactor 5, ensuring the circulation of gas in the entire reactor, the sludge-water separation module 2 realizes solid-liquid separation through physical action, and through the sludge-water separation module 2, solid waste (such as sludge) and liquid waste (such as wastewater) can be treated separately, thereby more effectively recycling and utilizing resources, and through physical or mechanical methods such as centrifugation, screening, etc., the use of chemical additives is reduced, the burden on the environment is reduced, through the design of the circulating fan 3 and the anaerobic fermentation reactor 5, the generated greenhouse gas can be more effectively captured and utilized, atmospheric emissions are reduced, solid waste is converted into energy, the burden on landfills is reduced, and the exploitation of additional resources is also reduced, through the separation of solid and liquid waste, liquid waste can be treated specifically, water treatment efficiency is improved, and the impact on the environment is reduced.

[0041] A method for sustainable supply of biomass renewable energy, comprising the following steps:

[0042] S1: solid-liquid separation, the sewage is first subjected to a solid-liquid separation process to separate solids and clear liquid; the purpose here is to separate the solid and liquid components in the sewage to prepare for subsequent treatment steps, thereby improving the efficiency and effectiveness of the subsequent treatment process and reducing the impact of solids on the anaerobic fermentation process;

[0043] S2: clear liquid treatment, the separated clear liquid is sent to the clear liquid anaerobic fermentation reactor 5 for anaerobic fermentation to produce biogas for recycling; the separated clear liquid is subjected to anaerobic fermentation to produce biogas, achieving recycling of energy and reducing emissions of organic matter and environmental pollution;

[0044] S3: solid treatment, the separated solids are further subjected to organic matter and inorganic matter separation, the separated organic matter is sent to the high-solid anaerobic fermentation reactor 5 for anaerobic fermentation to produce biogas; the separated solids are subjected to organic matter and inorganic matter separation, and the organic matter is subjected to anaerobic fermentation, improving the anaerobic fermentation efficiency of the organic matter and increasing the biogas yield, and the separated inorganic matter can be further treated;

[0045] S4: inorganic matter drying treatment, the separated inorganic matter is mixed with the hot hydrolyzed solids and enters the quality drying unit for drying treatment, and the dried inorganic matter can be used as a resource such as slag; by mixing the inorganic matter with the hot hydrolyzed solids and performing drying treatment, the dried inorganic matter can be used as a resource such as slag, achieving resource utilization;

[0046] S5: Organic matter dry cracking, after the organic matter entering the dry cracking unit is treated by dry cracking, cracking treatment is carried out to generate cracking gas and heat energy, and the cracking gas and oxygen in the air are subjected to electrochemical reaction in the energy electrochemical reactor to be converted into electric energy and heat energy; after the organic matter is treated by dry cracking, cracking treatment is carried out to generate cracking gas and heat energy, which can be converted into electric energy and heat energy, thereby realizing diversified utilization of energy;

[0047] S6: Heat energy recycling, the heat energy generated in the cracking process and the heat energy generated in the energy electrochemical reactor are used for heat supply of the bioenergy disposal system; by recycling the heat energy generated in the cracking process and the heat energy generated in the energy electrochemical reactor, energy waste is reduced, and the heat supply demand of the bioenergy disposal system is met;

[0048] S7: Solid resource utilization, the solid after dry cracking can be made into carbon rods or activated carbon for resource utilization, and the heat energy generated by combustion of the carbon rods is supplied to the heat supply system of the bioenergy disposal system; by making the solid after dry cracking into carbon rods or activated carbon for resource utilization, economic benefits are increased, and the heat energy generated by combustion of the carbon rods can be used for heat supply;

[0049] S8: Activated carbon recycling, the generated activated carbon is used for adsorbing biomass in the clear liquid after anaerobic fermentation in the clear liquid anaerobic fermentation reactor 5 and the high-solid anaerobic fermentation reactor 5, thereby improving the biomass energy conversion efficiency; the activated carbon is used for adsorbing biomass in the clear liquid after fermentation, thereby improving the biomass energy conversion efficiency and reducing the emission of pollutants;

[0050] S9: Residual sludge treatment, the residual sludge after fermentation in the clear liquid anaerobic fermentation reactor 5 and the high-solid anaerobic fermentation reactor 5 is subjected to thermal hydrolysis treatment, and the clear liquid rich in high-concentration organic matter after thermal hydrolysis is returned to the clear liquid anaerobic fermentation reactor 5 for continuous anaerobic fermentation; by subjecting the residual sludge after fermentation to thermal hydrolysis treatment, the extraction efficiency of organic matter is improved, and the yield of biomass energy is increased;

[0051] S10: Resource recycling and cyclic utilization, biomass and water resources in the clear liquid after fermentation are recovered as resources for cyclic utilization; by recovering biomass and water resources in the clear liquid after fermentation, cyclic utilization of resources is realized, and dependence on natural resources is reduced;

[0052] S11: Electric and thermal energy output, the biogas and pyrolysis gas produced by the anaerobic fermentation reactor 5, high-solid anaerobic fermentation reactor 5 and the split-quality dry decomposition center are converted into electric and thermal energy in the energy electrochemical reactor with oxygen in the air, part of the electric and thermal energy is used to ensure the sustainable operation of the bioenergy disposal system, and the other part of the electric and thermal energy can be outputted to the outside, reducing the dependence of the city on external power supply; the biogas and pyrolysis gas produced is converted into electric and thermal energy, part of which is used for self-use, and part of which is outputted to the outside, reducing the dependence on external power supply and improving the energy self-sufficiency rate of the city;

[0053] S12: Using the bioenergy treatment devices such as clear liquid fermentation, high-solid fermentation and split-quality dry decomposition, all the biomass in the city is recovered and converted into electric and thermal energy, realizing the energy self-sufficiency of the city, which can completely get rid of the dependence of the city on external power supply, and can also fully utilize the bioenergy treatment devices such as clear liquid fermentation, high-solid fermentation and split-quality dry decomposition to recover all the biomass in the city, which is used for the energy electrochemical reactor to convert as much as possible into electric and thermal energy to meet the energy self-sufficiency of the whole city, through the recovery of all the biomass in the city to convert into electric and thermal energy, the dependence of the city on external power supply is completely got rid of, realizing the sustainable development of energy; from S1-S12, the efficient utilization of biomass resources can be realized, the environmental pollution can be reduced, the energy utilization efficiency can be improved, the energy self-sufficiency of the city can be realized, at the same time, the recycling of resources can be promoted, and the dependence on natural resources can be reduced.

[0054] In order to improve the biogas production and adapt to the changes in raw materials, in an embodiment, the anaerobic fermentation reactor 5 is a complete-mix anaerobic reactor, biomass is added to the complete-mix anaerobic reactor to improve the biogas production, the effluent after the clear liquid anaerobic fermentation and the high-solid anaerobic fermentation in S2-S3 is selected to recover the biomass organic carbon by activated carbon, double membrane and the like, and is recycled to the solid-liquid separation unit to continue to participate in the repeated cycle anaerobic fermentation to produce biogas, the biomass can be efficiently converted into biogas by the complete-mix anaerobic reactor, the biogas production can be further improved by adding biomass, the energy output is increased, the combination of the clear liquid anaerobic fermentation and the high-solid anaerobic fermentation can better handle biomass raw materials of different concentrations, optimize the entire fermentation process, and improve the fermentation efficiency, in addition, the biomass organic carbon can be effectively recovered by the application of activated carbon, double membrane and the like, and the resource recycling is realized, which helps to reduce the raw material consumption and reduce the production cost, the biogas produced in the biomass anaerobic fermentation process can be used as renewable energy, reduces the dependence on fossil energy, reduces the greenhouse gas emission and reduces environmental pollution, in addition, the effluent after the clear liquid anaerobic fermentation and the high-solid anaerobic fermentation can be further treated by activated carbon and the like to remove organic pollutants and improve the effluent quality, which is beneficial to environmental protection, the application of activated carbon and double membrane and the like helps to maintain the stable operation of the system and prevent harmful substances in the biomass raw materials from having adverse effects on the anaerobic fermentation process, the design can adapt to different types of biomass raw materials, has strong raw material adaptability, and is beneficial to the sustainable development of the biomass renewable energy industry.

[0055] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make slight changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments according to the technical essence of the present application, as long as it does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A method for sustainable supply of biomass renewable energy, applied to a biomass renewable energy sustainable supply device, comprising an anaerobic fermentation device and an energy electrochemical reactor, wherein biomass gas or fermentation liquid produced by the anaerobic fermentation device is transported to the energy electrochemical reactor, the anaerobic fermentation device comprising an anaerobic fermentation reactor, a gas stirring module disposed at the bottom of the anaerobic fermentation reactor, a sludge-water separation module disposed at the top of the anaerobic fermentation reactor, and a circulating fan, the sludge-water separation module being used for solid-liquid separation before and after the fermentation process, the circulating fan driving gas through the gas stirring module into the anaerobic fermentation reactor, the gas... The stirring module generates a vigorous stirring effect, ensuring thorough mixing of the liquid and organic matter within the reactor. The gas stirring module, sludge-water separation module, and circulating fan work synergistically to enable sustainable energy utilization. The gas stirring module and the circulating fan are connected via a first pipe, through which the gas supplied by the circulating fan enters the gas stirring module. The sludge-water separation module is equipped with several inclined plates. The sludge-water separation module is connected to the inlet and outlet of the anaerobic fermentation reactor via a second pipe. The outlet of the circulating fan is connected to a ventilation duct located above the anaerobic fermentation reactor, ensuring gas circulation throughout the entire reactor. The mud-water separation module achieves solid-liquid separation through physical action; Its characteristic is that it includes the following steps: S1: Solid-liquid separation, which first separates solids and clear liquid from wastewater through a solid-liquid separation process; S2: Clarified liquid treatment. The separated clarified liquid is sent to the anaerobic fermentation reactor for anaerobic fermentation to produce biogas for recycling. S3: Solids treatment. The separated solids are further separated into organic and inorganic matter. The separated organic matter is sent to a high-solids anaerobic fermentation reactor for anaerobic fermentation to produce biogas. S4: Inorganic matter drying treatment. The separated inorganic matter is mixed with the solids after hot water hydrolysis and enters the fractional drying unit for drying treatment. The dried inorganic matter is used as slag resource. S5: Organic matter drying and pyrolysis. After the organic matter entering the fractional drying unit is dried, it is pyrolyzed to produce pyrolysis gas and heat energy. The pyrolysis gas and oxygen in the air undergo an electrochemical reaction in the energy electrochemical reactor to convert into electrical energy and heat energy. S6: Thermal energy recovery and utilization, the thermal energy generated during the pyrolysis process and the thermal energy generated by the energy electrochemical reactor are used for heating the bioenergy treatment system; S7: Solid resource utilization. The solids after drying and pyrolysis are made into carbon rods or activated carbon for resource utilization. The heat energy generated by burning the carbon rods is supplied to the heating system of the bioenergy treatment system. S8: Activated carbon is recycled. The generated activated carbon is used to adsorb biomass in the clear liquid produced after fermentation in the clear liquid anaerobic fermentation reactor and the high solids anaerobic fermentation reactor, thereby improving the biomass energy conversion efficiency. S9: Residual sludge treatment: The residual sludge after fermentation in the clear liquid anaerobic fermentation reactor and the high solids anaerobic fermentation reactor is subjected to hot hydrolysis. The clear liquid rich in high concentration of organic matter after hot hydrolysis is returned to the clear liquid anaerobic fermentation reactor for continued anaerobic fermentation. S10: Resource recycling and reuse. The clear liquid after fermentation is used to recover biomass and water resources for continued recycling. S11: Output of electrical and thermal energy. The biogas and pyrolysis gas generated by the clear liquid anaerobic fermentation reactor, the high solids anaerobic fermentation reactor, and the fractional drying and pyrolysis center are converted into electrical and thermal energy in the energy electrochemical reactor along with oxygen in the air. Part of the electrical and thermal energy is used to ensure the sustainable operation of the bioenergy treatment system, and the other part of the electrical and thermal energy is output to reduce the city's dependence on external power supply. S12: Utilizing liquid fermentation, high-solids fermentation, and fractional drying and pyrolysis bioenergy treatment devices, urban biomass is recovered and converted into electricity and heat, achieving urban energy self-sufficiency.

2. The method for sustainable supply of biomass renewable energy according to claim 1, characterized in that, The anaerobic fermentation reactor is a fully mixed anaerobic reactor.

3. A method for sustainable supply of biomass renewable energy according to claim 2, characterized in that, Biomass is added to the total mixed anaerobic reactor to increase biogas production.

4. A method for sustainable supply of biomass renewable energy according to claim 3, characterized in that, The effluent from S2-S3, after undergoing anaerobic fermentation of clear liquid and anaerobic fermentation of high solids, is recycled to the solid-liquid separation unit after being processed by activated carbon and dual membranes to produce biogas.

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