Complex waste treatment system for agricultural byproducts and waste nutrient solution, using renewable power

Abstract

The present invention relates to a waste treatment system for treating agricultural wastes such as agricultural byproducts and waste nutrient solutions generated during crop cultivation. The present invention provides a composite waste treatment system that can efficiently convert, into fuel, agricultural byproducts produced during facility horticulture and greenhouse cultivation by using distributed renewable power such as solar power and wind power, and, simultaneously, recover pure water from waste nutrient solutions to be discarded and utilize same.

Description

Agricultural produce-nutrient solution composite waste treatment system using renewable energy

[0001] The present invention relates to a technology for processing agricultural waste such as agricultural products and waste nutrient solution generated during the process of growing crops.

[0002] Renewable energy facilities, which require a large amount of land for installation due to their low energy production density, are being increasingly distributed, particularly in rural areas where it is relatively easy to secure idle land. However, with the recent expansion of renewable energy supply, surplus renewable power that is not connected to the power grid is increasing.

[0003] It is desirable to consume surplus electricity that is not connected to the power grid through local consumption. However, due to the nature of rural areas, it is not easy to secure large-scale electricity demand, so it is necessary to create demand for surplus renewable electricity that is suitable for the characteristics of rural areas.

[0004] The expansion of smart farms for facility horticulture to address food shortages stemming from the climate crisis is expected to serve as a major demand source for this surplus electricity. In particular, in addition to the demand for energy to supply heating and cooling necessary for growth, demand is expected to increase as an energy source for processing the massive amount of agricultural produce generated after crop production and for treating waste nutrient solutions generated from the supply of water and nutrients essential for crop growth.

[0005] Incineration or natural treatment (such as fermentation) are commonly used as methods for processing agricultural waste, but due to the massive amount of carbon (CO2) generated during this process, it is expected that regulations on massive carbon emission sources will be applied in the future in response to the climate crisis.

[0006] Therefore, technological alternatives for reducing carbon emissions are needed, and in particular, demand for bio-coal, which can be stored and utilized as fuel through torrefaction using carbon-neutral biomass, is expected to surge.

[0007] The coalification reaction of agricultural products takes about an hour at an ambient temperature of 250 to 300℃, and energy supply is required for this.

[0008] Meanwhile, in crop growth, especially hydroponics, the main nutrients required by crops, such as nitrogen, phosphorus, and potassium, are dissolved in water and supplied in the form of a nutrient solution. Although the amount varies, generally, about 30 to 45% of the supplied nutrient solution is not absorbed by the crops and is discharged.

[0009] There have been recent attempts to recycle the waste nutrient solution discharged in this way through processes such as post-treatment using microorganisms and UV sterilization, but in general, it is contaminated during the nutrient solution supply process such as spot irrigation and crop absorption, so instead of recycling, it is mainly discharged through sewage treatment. This not only causes economic problems, but also components such as nitrogen (N), phosphorus (P), and potassium (K) dissolved in the nutrient solution promote eutrophication of streams and rivers, causing green algae, and is pointed out as a cause of environmental damage, so it is expected that regulations on the discharge of waste nutrient solution will be applied in the future.

[0010] Therefore, in order to foster a sustainable smart farm industry, it is urgent to develop effective countermeasures to reduce carbon emissions by converting waste agricultural byproducts into fuel and to prevent water resource pollution caused by the discharge of waste nutrient solutions.

[0011] In addition, there is a need to address the issue of surplus renewable electricity that cannot be connected to the power grid and sold as a countermeasure to the rapid expansion of supply in response to the future climate crisis, as well as the energy supply issue required for the aforementioned rural waste disposal.

[0012] (Patent Document 1) KR 10-2023-0116986 A (August 7, 2023)

[0013] The purpose of the present invention is to provide a composite waste treatment system that can efficiently convert agricultural products produced in the process of growing greenhouse horticulture into fuel using distributed renewable power such as solar and wind power, and at the same time recover and utilize pure water (water) from discarded waste nutrient solution.

[0014] In order to solve the above-described problem, the present invention provides a system for processing agricultural produce and waste nutrient solution composite waste using renewable power, comprising: a surplus power generation unit using a distributed renewable energy source; a composite reactor that receives power from the surplus power generation unit and processes agricultural produce and waste nutrient solution using an induction heating method to produce solid fuel or solid inorganic matter as reaction products; a power modulation unit that modulates power supplied from the surplus power generation unit to the composite reactor so that the internal temperature of the composite reactor can be controlled according to the type of waste; a waste supply unit that supplies agricultural produce and waste nutrient solution into the interior of the composite reactor; and an intelligent operation control unit that analyzes and determines weather information affecting the amount of regenerative power generation and information on the amount or storage status of agricultural produce and waste nutrient solution to optimally adjust the daily operation schedule of the composite reactor.

[0015] At least one heating rod is provided inside the above complex reactor to convert the power supplied from the surplus power generation unit into heat.

[0016] The above heating rod is positioned inside an induction heating enclosure located in the upper central portion of the interior of the above composite reactor.

[0017] The above power modulation unit modulates the frequency or voltage of the power supplied to the heating rod, thereby maintaining the internal temperature of the complex reactor in the range of 250°C to 300°C, which is a temperature range suitable for torrefaction reaction, when processing agricultural products, and maintaining the internal temperature of the complex reactor at 100°C or higher, which is a temperature at which water vapor is generated, when processing waste nutrient solution.

[0018] Preferably, the waste supply unit supplies waste into the interior of the composite reactor through separate inlets according to the type of waste.

[0019] The above inlet can be divided into a solid waste inlet formed on the upper side of one side of the composite reactor and a liquid waste inlet formed on the upper side of the other side of the composite reactor.

[0020] Accordingly, the waste supply unit includes a solid waste supply unit that supplies agricultural products, which are solid waste, into the interior of the complex reactor through the solid waste inlet; and a liquid waste supply unit that supplies waste nutrient solution, which is liquid waste, into the interior of the complex reactor through the liquid waste inlet.

[0021] The above solid waste supply unit includes a carrier into which agricultural products are loaded, and a plurality of carrier housings provided on one side of the interior of the composite reactor into which the carriers are inserted.

[0022] Meanwhile, the liquid waste supply unit includes a waste nutrient solution storage tank in which waste nutrient solution discharged from the greenhouse is temporarily stored.

[0023] Additionally, a steam exhaust port is provided at the top of the complex reactor to discharge steam generated during waste nutrient solution treatment.

[0024] Preferably, the water vapor discharged through the steam outlet can be condensed and recovered as water.

[0025] Meanwhile, the intelligent driving control unit controls the waste supply unit so that waste nutrient solution generated in the greenhouse when processing agricultural products in the complex reactor is stored in the waste nutrient solution storage tank.

[0026] In addition, the intelligent driving control unit, when the supply of regenerative power is not smooth due to weather conditions during agricultural product processing in the complex reactor, controls the internal temperature of the complex reactor according to a selective control method that predicts the amount of regenerative power generation and purchases power from an external power grid to supply the necessary energy, or waits until regenerative power is supplied and intermittently supplies the necessary energy.

[0027] Preferably, the selective control method can be selected as one of the control methods by the intelligent operation control unit comprehensively judging, by an artificial intelligence algorithm, the heat loss occurring due to the difference between the internal temperature of the complex reactor and the temperature of the outside air, and the deterioration of the quality of solid fuel (bio-coal, bio-char) that may occur when the internal temperature of the complex reactor is maintained below a certain temperature for a long period of time.

[0028] In addition, the intelligent driving control unit can control the power modulation unit to temporarily raise the internal temperature of the complex reactor to a temperature range capable of sterilizing contaminated inorganic matter in order to recycle solid inorganic matter recovered through evaporation of water during waste nutrient solution treatment in the complex reactor.

[0029] The agricultural product-nutrient solution composite waste treatment system using renewable power according to the present invention has a very useful effect of increasing the utilization of renewable power that cannot be connected to the power grid and sold, thereby preventing the loss of renewable power due to limitations on power generation output, and generating convenience in terms of energy storage and utilization through the conversion of solid biomass into fuel.

[0030] In addition, in the case of waste nutrient solution treatment, the water in the waste nutrient solution can be recovered to alleviate the water shortage problem in rural areas, and by recovering, sterilizing, and recycling expensive inorganic substances, the cost of purchasing fertilizer (inorganic substances) is significantly reduced, resulting in the benefit of reduced operating costs.

[0031] In addition, it can contribute to preventing water resource pollution caused by eutrophication of nitrogen, phosphorus, potassium, etc. discharged through sewage.

[0032] In addition, due to the nature of facility horticulture, waste nutrient solution is generated during the crop cultivation season (spring, autumn, and winter) throughout the year, while agricultural produce is mainly generated during the summer when facility horticulture is not in operation. Therefore, the agricultural produce-waste nutrient solution composite waste treatment system using regenerative power according to the present invention enables the recycling of waste nutrient solution and agricultural produce in the same reactor, thereby creating a stable electricity demand throughout the year, and thus establishing a regional energy self-sufficiency model through the discovery of demand for the use of surplus regenerative power.

[0033] Figure 1 is a conceptual diagram of an agricultural product-nutrient solution composite waste treatment system using regenerative power according to the present invention.

[0034] Figure 2 is a block diagram showing the control flow of the intelligent driving control unit in the present invention.

[0035] Figure 3 is a cross-sectional view showing the AA' section in Figure 1.

[0036] Figure 4 is a diagram illustrating the flow of heat during the agricultural product processing process in the present invention.

[0037] Figure 5 is a diagram illustrating the flow of heat during the wastewater treatment process in the present invention.

[0038] *Explanation of key symbols in the drawing*

[0039] 1: Power grid 2: Greenhouse

[0040] 10: Surplus power generation unit 20: Combined reactor

[0041] 21: Heating rod 22: Solid waste inlet

[0042] 23: Liquid waste inlet 24: Steam outlet

[0043] 25: Induction heating enclosure 30: Power modulation unit

[0044] 40: Waste Supply Unit 41: Solid Waste Supply Unit

[0045] 42: Liquid waste supply section 43: Carrier

[0046] 44: Carrier housing 45: Spent nutrient solution storage tank

[0047] 46: Liquid transport means 47: Cover

[0048] 50: Waste discharge area 51: Discharge outlet

[0049] 52: Result transport means 60: Intelligent driving control unit

[0050] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted.

[0051] The agricultural produce-spent nutrient solution composite waste treatment system using regenerative power according to the present invention is a model for efficient annual use of surplus regenerative power, and is for recycling agricultural produce generated in rural areas and waste nutrient solution generated through greenhouse cultivation such as facility horticulture. As shown in FIGS. 1 and 2, it is largely composed of a surplus power production unit (10), a composite reactor (20), a power modulation unit (30), a waste supply unit (40), a waste discharge unit (50), and an intelligent operation control unit (60).

[0052] The surplus power generation unit (10) is a power generation facility using distributed renewable energy sources such as solar and wind power, which are surplus renewable power sources that cannot be connected to the power grid (1) and sold.

[0053] The composite reactor (20) is a waste treatment reactor capable of simultaneously treating agricultural products and waste nutrient solution, and is characterized by receiving power from a surplus power generation unit (10) so that the temperature inside the reactor is quickly controlled to an appropriate temperature depending on the type of waste.

[0054] To this end, at least one heating rod (21) is provided inside the complex reactor (20) to convert the power supplied from the surplus power generation unit (10) into heat, and the heating rod (21) converts the power into heat by induction heating using an induction heater.

[0055] Referring to FIGS. 1 and 3, in the present invention, the heating rod (21) is positioned inside the induction heating enclosure (25) located at the upper central portion inside the composite reactor (20), and has a structure in which it is not directly exposed to the internal space of the composite reactor (20).

[0056] The induction heating enclosure (25) is formed of a material with good thermal conductivity, such as aluminum, and supplies the reaction heat generated by the heating rod (21) to the interior of the composite reactor (20) through indirect heat exchange by radiation and convection heat transfer.

[0057] In this way, electrical safety issues that may occur when the heating rod (21) comes into direct contact with the waste nutrient solution in the internal space of the complex reactor (20), decreased heating efficiency due to the cooling effect, risk of cracking due to rapid temperature change, steam generation and corrosion issues, risk of explosion, etc. can be prevented, and the life of the heating rod (21) can be extended.

[0058] The power modulation unit (30) is a configuration for controlling the internal temperature of the composite reactor (20), and quickly and accurately controls the internal temperature of the composite reactor (20) required for different waste disposal by modulating the conditions (frequency, voltage, etc.) of the power supplied from the surplus power generation unit (10) to the heating rod (21) of the composite reactor (20).

[0059] By controlling the internal temperature of this complex reactor (20), when processing agricultural products in the form of solid biomass, the complex reactor (20) can obtain fuel in the form of bio-coal or bio-char by reacting them for about 1 hour under anaerobic conditions without oxygen at about 250°C, and when processing waste nutrient solution, it can separate the main components (nitrogen, phosphorus, potassium, etc.) and water in the waste nutrient solution by evaporating the water under atmospheric conditions of about 100°C.

[0060] That is, the present invention enables the simultaneous treatment of agricultural products that are intensively produced during a specific period of the year (summer) and waste nutrient solution that is produced daily during the crop growing season using only one reactor.

[0061] In detail, it is very difficult to quickly and precisely control the temperature environment of different conditions (250 ~ 300℃ vs. 100℃) essential for the treatment of agricultural produce and waste nutrient solution through combustion as in a conventional reactor, but the present invention modulates the power conditions from surplus regenerative power and provides the optimal thermal environment conditions for each treatment through induction heating quickly and accurately, thereby obtaining fuel (Bio-cial, Bio-char) of the best quality, and also enables high-efficiency water recovery and recycling of inorganic substances.

[0062] The waste supply unit (40) is configured to supply waste into the interior of the composite reactor (20), and to enable smooth inflow of waste into the interior of the composite reactor (20), waste is supplied into the interior of the composite reactor (20) through separate inlets (22, 23) according to the type of waste.

[0063] To this end, the waste supply unit (40) is divided into a solid waste supply unit (41) that supplies agricultural products, which are solid waste, into the interior of the complex reactor (20) through the solid waste inlet (22), and a liquid waste supply unit (42) that supplies waste nutrient solution, which is liquid waste, into the interior of the complex reactor (20) through the liquid waste inlet (23).

[0064] The solid waste supply unit (41) is composed of a carrier (43) into which agricultural products are loaded, and a plurality of carrier housings (44) provided on one side of the interior of the composite reactor (20). By inserting the carrier (43) loaded with agricultural products into the carrier housing (44), the agricultural products, which are solid waste, are supplied into the interior of the composite reactor (20).

[0065] The open top of the carrier housing (44) forms a solid waste inlet (22), and a cover (47) for opening and closing the solid waste inlet (22) is provided so that the carrier housing (44) can be sealed when the composite reactor (20) is in operation.

[0066] The liquid waste supply unit (42) may be composed of a waste nutrient solution storage tank (45) in which waste nutrient solution discharged from the greenhouse (2) is temporarily stored, and a liquid transport means (46) that transports the waste nutrient solution stored in the waste nutrient solution storage tank (45) to a liquid waste inlet (23) formed on the upper side of the other side of the complex reactor (20). In the embodiment of the present invention, the liquid transport means (46) may be implemented using known pipes and pump devices.

[0067] A waste nutrient solution storage tank (45) may be optionally provided, and the waste nutrient solution discharged from the greenhouse (2) may be directly introduced into the complex reactor (20) without passing through the waste nutrient solution storage tank (45).

[0068] The waste nutrient solution transferred to the liquid waste inlet (23) falls due to its own weight and can fill the interior of the complex reactor (20).

[0069] At this time, the internal space of the complex reactor (20) filled with waste nutrient solution is separated from the carrier housing (44) where the agricultural products are located, thereby preventing the agricultural products from being contaminated by the waste nutrient solution or the waste nutrient solution from being contaminated by the agricultural products. In addition, volatile organic compounds (VOCs) generated during the production of biofuel can be separated and treated by the carrier housing (44).

[0070] The waste discharge unit (50) is configured to discharge the reaction product of the waste nutrient solution treated inside the complex reactor (20) to the outside of the complex reactor (20), and may be composed of an outlet (51) formed at the lower part of one side of the complex reactor (20), and a result transfer means (52) for transferring the reaction product discharged through the outlet (51) to a separate location. In the embodiment of the present invention, the result transfer means (52) may be applied with various transport devices such as a conveyor or a cart.

[0071] Meanwhile, a steam discharge port (24) for discharging steam generated during liquid waste treatment is provided at the top of the complex reactor (20).

[0072] The intelligent operation control unit (60) is a component that controls the operation of the agricultural produce-waste nutrient solution composite waste treatment system according to the present invention, and analyzes and determines information on weather (e.g., wind speed, solar irradiance, etc.) that affects the amount of regenerative power generation, the amount of agricultural produce and waste nutrient solution generated during facility horticulture operation, or the storage state (SOC) information of the storage tank storing agricultural produce and waste nutrient solution, to optimally adjust the daily operation schedule of the composite reaction tank (20).

[0073] Referring to FIG. 2, the intelligent driving control unit (60) controls the operation of the power modulation unit (30), the waste supply unit (40), the waste discharge unit (50), etc. in the agricultural product-waste nutrient solution composite waste treatment system according to the present invention.

[0074] The agricultural product-nutrient solution composite waste treatment system using regenerative power according to the present invention, which is configured as described above, can be operated as follows depending on the type of waste.

[0075]

[0076] ① Agricultural products (solid waste)

[0077] When agricultural products are generated intensively, such as during the summer season when the crop season ends, or when the carrier (43) loaded with agricultural products accumulates to a certain level (considering the capacity of the complex reactor (20)), the intelligent operation control unit (60) controls the waste supply unit (40) to store the waste nutrient solution currently generated in the waste nutrient solution storage tank (45), and the carrier (43) loaded with agricultural products is supplied into the interior of the complex reactor (20) through the solid waste inlet (22) to fill the carrier housing (44).

[0078] When a certain amount of carrier (43) is filled in the carrier housing (44) of the composite reactor (20), the intelligent operation control unit (60) controls the power modulation unit (30) to target a temperature range (250 to 300°C) suitable for the torrefaction reaction, and at this time, the power modulation unit (30) optimally modulates the voltage and frequency of the supplied regenerative power to quickly raise the internal temperature of the composite reactor (20) to the target temperature.

[0079] At this time, when the heating rod (21) is heated, the induction heating enclosure (25) is heated and radiant energy is emitted into the interior of the composite reactor (20), and the carrier housing (44) located inside the composite reactor (20) is directly or indirectly heated by radiant and convective heat transfer, thereby enabling the carrier (43) loaded into the carrier housing (44) to be uniformly heated (see FIG. 4).

[0080] Since a temperature difference occurs during this heat transfer process, it is desirable to heat the heating rod (21) to a temperature of 350°C or higher.

[0081] Meanwhile, when the supply of renewable power from the outside is not smooth, that is, when the power generated from wind or solar power is not supplied sufficiently due to weather conditions, the intelligent operation control unit (60) can control the internal temperature of the complex reactor (20) according to a selective control method that predicts the future amount of renewable power generation and purchases power from the power grid (1) to supply the necessary energy, or waits until the renewable power is supplied and intermittently supplies the necessary energy. At this time, the prediction of the future amount of renewable power generation may be performed directly by an artificial intelligence algorithm provided in the intelligent operation control unit (60), or may be performed through a separate renewable power amount prediction means (not shown).

[0082] The above-mentioned selective control method can be selected as one of the control methods by having the intelligent operation control unit (60) comprehensively judge, by means of an artificial intelligence algorithm, heat loss occurring due to the difference between the internal temperature of the complex reactor (20) and the external temperature, and deterioration of the quality of biofuel (bio-coal, bio-char) that may occur when the internal temperature of the complex reactor (20) is maintained below a certain temperature for a long period of time.

[0083] When the production of biofuel (Bio-coal, Bio-char) inside the carrier (43) is completed, the cover (47) is opened to remove the carrier (43) from the carrier housing (44), thereby allowing the produced biofuel to be removed from the complex reactor (20).

[0084]

[0085] ② Wastewater (liquid waste)

[0086] Except for the solid waste treatment period of a specific period described above, the liquid waste supply unit (42) that supplies the waste nutrient solution generated daily directly or from the waste nutrient solution storage tank (45) to the complex reactor (20) is operated under the control of the intelligent operation control unit (60).

[0087] When a certain amount of waste nutrient solution flows into the composite reactor (20), the intelligent operation control unit (60) controls the liquid waste supply unit (42) to close the liquid waste inlet (23) and controls the power modulation unit (30) to raise the internal temperature of the composite reactor (20) to 100°C or higher based on atmospheric pressure, thereby causing a phase change (evaporation) of the liquid.

[0088] At this time, when the heating rod (21) is heated, the temperature of the induction heating enclosure (25) rises, and the carrier housing (44) is heated through radiant and convective heat transfer, and when the surface of the carrier housing (44) is heated to a temperature higher than the temperature at which the water in the waste nutrient solution evaporates, the water changes into vapor (see Fig. 5). That is, in the present invention, the individual carrier housing (44) is utilized as a heat transfer medium during the waste nutrient solution recovery process, thereby efficiently performing the vapor evaporation process, thereby shortening the reaction time.

[0089] When the pressure at the top of the composite reactor (20) reaches a certain pressure, pure (water) vapor is discharged through the vapor discharge port (24) provided at the top of the composite reactor (20). At this time, the internal temperature of the composite reactor (20) is controlled so as to be maintained until all of the water in the waste nutrient solution evaporates.

[0090] The water vapor discharged through the steam outlet (24) can be condensed and used later where water is needed.

[0091] When the steam discharge inside the composite reactor (20) is completely completed and the pressure in the upper part of the composite reactor (20) does not increase above a certain pressure, the intelligent operation control unit (60) stops supplying energy to the composite reactor (20) and removes the solid inorganic matter (or the high-concentration waste nutrient solution dissolved in some of the unevaporated water) remaining inside the composite reactor (20) from the composite reactor (20) through a separate discharge port (51). At this time, some pure water may be supplied into the interior of the composite reactor (20) to ensure smooth discharge of the solid inorganic matter.

[0092] Even in this case, the intelligent driving control unit (60) can maintain the temperature of the composite reactor (20) by purchasing electricity from the power grid (1) by predicting the future amount of regenerative power generation according to external weather conditions. However, unlike the coalification reaction that has a great impact on the quality of fuel, the temperature change of the waste nutrient solution during the reaction time does not have a great impact on the properties of the recovered inorganic matter other than heat loss, so it is desirable to perform control utilizing regenerative power as much as possible.

[0093] Meanwhile, for the purpose of recycling solid inorganic matter recovered through evaporation of water, the intelligent operation control unit (60) can control the power modulation unit (30) to temporarily raise the internal temperature of the complex reactor (20) to a temperature range where sterilization of contaminated inorganic matter is possible.

[0094]

[0095] According to the agricultural produce-nutrient solution composite waste treatment system using regenerative power according to the present invention, which operates in this manner, it is possible to simultaneously treat agricultural produce that is intensively generated during a specific period of the year (summer) and nutrient solution that is generated daily during the crop growing season (spring, autumn, and winter) using a single reactor, thereby enabling efficient annual use of surplus regenerative power.

[0096] Hereinafter, embodiments of the present invention have been described in detail with reference to the attached drawings. However, the embodiments disclosed in this specification and the attached drawings are only used for the purpose of easily explaining the technical idea of ​​the present invention, and are not used to limit the scope of the present invention described in the claims. Accordingly, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Claims

1. Surplus power generation from distributed renewable energy sources; A complex reactor that receives power from the surplus power generation unit, processes waste agricultural products and waste nutrient solution using an induction heating method, and produces solid fuel or solid inorganic matter as reaction products; A power modulation unit that modulates power supplied from the surplus power generation unit to the complex reactor so that the internal temperature of the complex reactor can be controlled according to the type of waste; A waste supply unit that supplies agricultural products and waste nutrient solution into the interior of the above complex reactor; and An intelligent operation control unit that analyzes and judges weather information affecting the amount of renewable power generation and information on the amount or storage status of agricultural produce and waste nutrient solution generated, and optimally adjusts the daily operation schedule of the complex reactor; A system for processing agricultural produce-nutrient solution composite waste using regenerative power, characterized by including:

2. In claim 1, A system for processing agricultural produce and waste nutrient solution composite waste using regenerative power, characterized in that at least one heating rod for converting power supplied from the surplus power generation unit into heat is provided inside the above-mentioned composite reactor.

3. In claim 2, A system for processing agricultural produce and waste nutrient solution composite waste using regenerative power, characterized in that the heating rod is located inside an induction heating enclosure located in the upper central part of the interior of the composite reactor.

4. In claim 2, The power modulation unit modulates the frequency or voltage of the power supplied to the heating rod to maintain the internal temperature of the composite reactor in the range of 250°C to 300°C, which is a temperature range suitable for torrefaction reaction when processing agricultural products, and to maintain the internal temperature of the composite reactor at 100°C or higher, which is a temperature at which steam is generated, when processing waste nutrient solution. A system for processing agricultural products and waste nutrient solution composite waste using regenerative power.

5. In claim 1, The above waste supply unit is characterized in that waste is supplied into the interior of the composite reactor through a separate inlet according to the type of waste, and the agricultural produce-waste nutrient solution composite waste treatment system using regenerative power is characterized in that the above waste supply unit supplies waste into the interior of the composite reactor through a separate inlet according to the type of waste.

6. In claim 5, A system for processing agricultural produce and waste nutrient solution composite waste using regenerative power, characterized in that the inlet is divided into a solid waste inlet formed on the upper side of one side of the composite reactor and a liquid waste inlet formed on the upper side of the other side of the composite reactor.

7. In claim 6, The above waste supply unit, A solid waste supply unit that supplies agricultural products, which are solid wastes, into the interior of the composite reactor through the solid waste inlet; and A liquid waste supply unit that supplies waste nutrient solution, which is a liquid waste, into the interior of the composite reactor through the liquid waste inlet; A system for processing agricultural produce-nutrient solution composite waste using regenerative power, characterized by including:

8. In claim 7, A system for processing agricultural produce-nutrient solution composite waste using regenerative power, characterized in that the solid waste supply unit includes a carrier into which agricultural produce is loaded, and a plurality of carrier housings provided on one side of the interior of the composite reactor into which the carrier is inserted.

9. In claim 7, A system for processing agricultural produce-waste nutrient solution composite waste using regenerative power, characterized in that the liquid waste supply unit includes a waste nutrient solution storage tank in which waste nutrient solution discharged from a greenhouse is temporarily stored.

10. In claim 1, A system for processing agricultural produce and waste nutrient solution composite waste using regenerative power, characterized in that a steam exhaust port for discharging water vapor generated during waste nutrient solution processing is provided at the upper part of the above composite reactor.

11. In claim 10, A system for processing agricultural produce and waste nutrient solution composite waste using regenerative power, characterized in that the water vapor discharged through the above steam outlet is condensed and recovered as water.

12. In claim 9, A system for processing agricultural produce-waste nutrient solution composite waste using regenerative power, characterized in that the intelligent driving control unit controls the waste supply unit so that waste nutrient solution generated in a greenhouse during agricultural produce processing in the composite reactor is stored in the waste nutrient solution storage tank.

13. In claim 1, The intelligent driving control unit is characterized in that, when the supply of regenerative power is not smooth due to weather conditions during agricultural product processing in the complex reactor, the intelligent driving control unit controls the internal temperature of the complex reactor according to a selective control method of predicting the amount of regenerative power generation and purchasing power from an external power grid to supply the necessary energy, or waiting until regenerative power is supplied and intermittently supplying the necessary energy. The agricultural product-nutrient solution complex waste treatment system using regenerative power is characterized in that the intelligent driving control unit controls the internal temperature of the complex reactor according to a selective control method of predicting the amount of regenerative power generation and purchasing power from an external power grid to supply the necessary energy, or waiting until regenerative power is supplied and intermittently supplying the necessary energy.

14. In claim 13, The above selective control method is characterized in that one of the control methods is selected by the intelligent operation control unit comprehensively judging by an artificial intelligence algorithm the heat loss occurring due to the difference between the internal temperature of the composite reactor and the temperature of the outside air, and the deterioration of the quality of solid fuel (bio-coal, bio-char) that may occur when the internal temperature of the composite reactor is maintained below a certain temperature for a long period of time.

15. In claim 1, The intelligent driving control unit controls the power modulation unit to temporarily raise the internal temperature of the complex reactor to a temperature range capable of sterilizing contaminated inorganic substances in order to recycle solid inorganic substances recovered through evaporation of water during waste nutrient solution treatment in the complex reactor, wherein the system for processing agricultural produce and waste nutrient solution composite waste using regenerative power is characterized in that the intelligent driving control unit controls the power modulation unit to temporarily raise the internal temperature of the complex reactor to a temperature range capable of sterilizing contaminated inorganic substances in order to recycle solid inorganic substances recovered through evaporation of water during waste nutrient solution treatment in the complex reactor.

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