Intelligent pollution-agriculture complementary device and control method thereof

Abstract

The present invention relates to the field of resource and environmental technology, and discloses an intelligent sewage-agriculture complementary device and a control method thereof, wherein the device comprises a regulating tank and a shell; a sewage appropriate treatment module, a resource utilization module, a clear water tank and a digital control module are arranged in the shell, and the sewage appropriate treatment module comprises a water inlet main pipe, a membrane processor group and a water storage tank; the membrane processor group comprises a supporting structure, a structured filler and a water distribution unit; the resource utilization module comprises a functional tank, a water distribution unit and a three-dimensional hydroponic bed unit; the digital control module comprises a regulating tank sewage data acquisition unit and an analysis control unit; the analysis control unit analyzes the sewage data and the state of the structured filler in the regulating tank, and controls the degree of secondary treatment of domestic sewage by the sewage appropriate treatment module; the domestic sewage after the secondary treatment is resource-utilized through the three-dimensional hydroponic bed, so that the domestic sewage meets the discharge standard.

Description

Technical Field

[0001] The present invention relates to the field of resource and environmental technology, and in particular to an intelligent pollution-agriculture complementary device and a control method thereof. Background Art

[0002] Rural domestic sewage treatment is an important part of rural human settlement environment improvement. Therefore, it is necessary to vigorously promote the resource utilization model of rural domestic sewage. The current forms of rural domestic sewage resource utilization mainly include pollutant reduction and economic crop planting coupling model, tailwater irrigation model and water quality control on-demand discharge model.

[0003] The above models all have certain shortcomings, such as: (1) The pollutant reduction and cash crop planting coupling model uses cash crop purification as the main pollutant removal method. Not only is the removal effect unstable, but it is also seriously affected by temperature. Especially in the northern region, expensive construction costs must be invested to maintain a certain effect; (2) The tailwater irrigation model first treats the sewage to meet the agricultural irrigation standard before agricultural irrigation. There is an imbalance between sewage discharge and agricultural water demand. It is necessary to plan a large area of ​​land for the construction of tailwater storage pools. In addition, the self-purification capacity of the receiving body is limited, and there is a risk of secondary pollution; (3) The water quality control type on-demand discharge model The first model is to control the sewage treatment process so that it can be treated “lightly” to meet the agricultural irrigation standards during the irrigation period, and “heavy” treated to meet the discharge standards before being discharged into the receiving water body during the non-irrigation period. Although this model is an optimization of the tailwater irrigation model, it still has the risk of secondary pollution and fails to solve the common problems of rural domestic sewage treatment, such as large fluctuations in rural water quality and quantity, high operation and maintenance costs, and lack of professional operation and maintenance personnel. (4) The resource utilization methods in the existing model mostly use artificial wetlands, land infiltration, oxidation ponds and other processes, which have the disadvantages of unstable effects, being restricted by terrain, occupying a large area, and limited scale of economic crop planting.

[0004] In order to solve the problems existing in the resource utilization of rural domestic sewage, such as severe seasonal influence, imbalance between the supply and demand of sewage volume and quality and the water requirement of resource utilization module and the demand for nitrogen and phosphorus nutrients, unstable treatment effect, large land area, complex operation and maintenance, and low economic benefits. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent pollution-agriculture complementary device and a control method thereof to solve the above technical problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An intelligent pollution-agriculture complementary device, the device comprising a housing;

[0008] The housing is provided with:

[0009] A sewage treatment module is connected to the regulating tank and is used for secondary treatment of rural domestic sewage in the regulating tank; the sewage treatment module comprises a water inlet main pipe, a membrane treatment unit group and a water reservoir; the membrane treatment unit group comprises a supporting structure arranged above the water reservoir, a plurality of structured fillers arranged above the supporting structure and a plurality of water distribution units evenly arranged above the structured fillers; the water distribution units correspond to the structured fillers one by one;

[0010] The resource utilization module includes a functional pool, a water distribution unit and a three-dimensional hydroponic bed unit; the functional pool is connected to the water reservoir; the water distribution unit is connected to the functional pool, and is used to distribute the rural domestic sewage in the functional pool to the three-dimensional hydroponic bed unit; the three-dimensional hydroponic bed unit is used for hydroponics of economic crops and for nitrogen and phosphorus resource utilization and deep treatment of the rural domestic sewage in the functional pool;

[0011] A clear water tank is connected to the three-dimensional hydroponic bed unit and is used to store rural domestic sewage after deep treatment by the three-dimensional hydroponic bed unit; a water pipe is provided between the regulating tank and the functional tank, and a connecting valve is provided in the water pipe;

[0012] The digital control module includes a regulating tank sewage data collection unit and an analysis control unit for collecting regulating tank sewage data in the regulating tank; the analysis control unit is used to analyze the regulating tank sewage data to determine whether the structured filler in the sewage moderate treatment module needs to be replaced and the amount to be used.

[0013] As a further solution of the present invention: the water distribution unit includes a water inlet branch pipe connected to the water inlet main pipe, a solenoid valve arranged in the middle of the water inlet branch pipe and a water distributor arranged at the output end of the water inlet branch pipe; the water distributor is located above the corresponding structured packing.

[0014] As a further solution of the present invention: the water distribution unit includes a plurality of water distribution pipes connected to the functional pool, each of the water distribution pipes is provided with a water distribution switch, the three-dimensional hydroponic bed unit includes a plurality of three-dimensional hydroponic beds, and the water distribution switches correspond one-to-one to the three-dimensional hydroponic beds.

[0015] As a further solution of the present invention: the resource utilization module also includes a water heating unit and a sterilizer arranged under the three-dimensional hydroponic bed group unit; the water heating unit includes a warming corridor, a water heating coil and a return water corridor connected in sequence; the warming corridor and the return water corridor are respectively connected to the clear water tank, and a heater is provided on the warming corridor.

[0016] As a further solution of the present invention: by formula;

[0017]

[0018] Count the number of solenoid valves in the open state ;

[0019] in, is the judgment function, when hour, ;when hour, ; is the ceiling function, ; for the current moment; The preset duration; The time corresponding to the preset time in the adjustment pool at the current moment value, Irrigation water quality standards value, is the single sewage treatment volume; Under standard conditions Volumetric load, is the volume of a structured packing, is the comprehensive state coefficient.

[0020] As a further solution of the present invention: by formula:

[0021]

[0022] Calculate the State factor of structured packing ;

[0023] in, is the total number of structured packings, ; For the The start time of the most recent liquid conduction of the liquid conduction tube corresponding to the structured packing; For the The end time of the most recent liquid conduction of the liquid conduction tube corresponding to the structured packing; For the The curve of the change of the most recent liquid guiding speed of the liquid guiding tube corresponding to the structured packing over time; is the preset speed; is the first preset constant.

[0024] As a further solution of the present invention: by formula:

[0025]

[0026] Calculate the comprehensive state coefficient .

[0027] As a further solution of the present invention: according to the number of solenoid valves in the open state The process of controlling the connecting valve and the solenoid valve is:

[0028] S10: The number of solenoid valves that will be opened Total number of solenoid valves Make comparisons;

[0029] S20: When When the water is flowing, close all the solenoid valves and open the connecting valve in the water pipe;

[0030] when When State factor of structured packing Arrange from large to small, open the front Solenoid valve corresponding to each structured packing;

[0031] when When the state coefficient is changed, close all solenoid valves and connecting valves. Minimum structured packing, then recalculate the number of solenoid valves in the open state , return to step S10.

[0032] A control method for an intelligent pollution-agriculture complementary device, the control method comprising the following steps:

[0033] S1: Collecting the regulating pool sewage data in the regulating pool through the regulating pool sewage data collection unit;

[0034] S2: Analyze the sewage data of the regulating tank by the analysis control unit to determine whether the structured filler in the sewage proper treatment module needs to be replaced; if it needs to be replaced, replace the structured filler and repeat step S2; if it does not need to be replaced, proceed to step S3;

[0035] S3: The sewage moderate treatment module performs secondary treatment on rural domestic sewage in the regulating tank;

[0036] S4: Rural domestic sewage after secondary treatment enters the functional pool and is distributed to the three-dimensional hydroponic bed unit through the water distribution unit; economic crops are hydroponically cultivated through the three-dimensional hydroponic bed unit and nitrogen and phosphorus resources are utilized and deeply treated for rural domestic sewage in the functional pool;

[0037] S5: Store the deeply treated rural domestic sewage in a clean water tank and utilize it comprehensively.

[0038] Beneficial effects of the present invention:

[0039] (1) The present invention collects regulating pool sewage data in the regulating pool through the regulating pool sewage data collection unit, and analyzes the regulating pool sewage data through the analysis control unit to determine whether the structured filler in the sewage appropriate treatment module needs to be replaced; and uses the sewage appropriate treatment module to perform secondary treatment on the rural domestic sewage in the regulating pool according to the judgment result; the rural domestic sewage after secondary treatment is stored in a reservoir; the water in the reservoir enters the functional pool through a pump; the rural domestic sewage in the functional pool is distributed to the three-dimensional hydroponic bed unit through the water distribution unit; the three-dimensional hydroponic bed unit is used to hydroponic economic crops during the non-planting season, and the water of agricultural irrigation standard is secondary filtered, and finally the rural domestic sewage after nitrogen and phosphorus resource utilization and deep treatment is stored in a clear water tank and discharged, thereby realizing the effective utilization and treatment of rural domestic sewage;

[0040] (2) One end of the water inlet of the present invention is connected to the regulating tank, and the other end is connected to the water inlet main pipe; the water outlet is connected to the clean water tank. The connection method is simple and efficient to achieve sewage treatment and resource utilization, and economic crops are planted. The pollution control entity can achieve positive returns, improve the enthusiasm for pollution control, and ensure the long-term operation and maintenance of pollution control facilities, which has significant social and environmental benefits;

[0041] (3) The present invention uses a three-dimensional hydroponic bed to plant economic crops to deeply treat domestic sewage. Compared with artificial wetlands, land infiltration and other technologies, it has the advantages of no terrain limitations, small footprint and high unit production capacity;

[0042] (4) The present invention controls the planting scale of the three-dimensional hydroponic bed through a digital control module, balances the relationship between the sewage water volume and quality and the water demand of the resource utilization module and the demand for nitrogen and phosphorus nutrients, ensures that the effluent is stable and meets the standards, solves the sewage removal problem, reduces the investment in water storage facilities, and greatly reduces the equipment volume and floor space; the three-dimensional hydroponic bed is placed inside the intelligent sewage-agriculture complementary device, which can effectively control the ambient temperature and is not affected by seasons and bad weather;

[0043] (5) The present invention intelligently adjusts the number of structured fillers used through a digital control module according to the COD value of the influent and the requirements of agricultural irrigation, thereby avoiding excessive processing of nitrogen and phosphorus resources and ensuring maximum utilization and reduction of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Figure 1 A top plan view of a device body according to an embodiment of the present invention;

[0046] Figure 2 A schematic plan view of the structure of a membrane processor according to an embodiment of the present invention;

[0047] Figure 3A schematic diagram of a control method according to an embodiment of the present invention;

[0048] Figure 4 The present invention is a flow chart of a control method according to an embodiment of the present invention.

[0049] Description of the drawings: 1. Shell; 21. Water inlet main pipe; 22. Water inlet branch pipe; 23. Solenoid valve; 24. Water distributor; 25. Structured filler; 26. Support structure; 27. Water reservoir; 31. Functional pool; 32. Water distribution pipe; 33. Water distribution switch; 34. Three-dimensional hydroponic bed; 35. Clean water tank; 36. Heating gallery; 37. Water heating coil; 38. Return gallery; 39. Heater; 310. Disinfector. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1-Figure 3 As shown, in one embodiment, an intelligent pollution-agriculture complementary device is provided, wherein the housing 1 is provided with:

[0052] The sewage treatment module is connected to the regulating tank and is used for secondary treatment of rural domestic sewage in the regulating tank; the sewage treatment module includes a water inlet main 21, a membrane treatment unit and a water reservoir 27; the membrane treatment unit includes a supporting structure 26 arranged above the water reservoir 27, a plurality of structured fillers 25 arranged above the supporting structure 26, and a plurality of water distribution units uniformly arranged above the structured fillers 25; the water distribution units correspond to the structured fillers 25 one by one;

[0053] The resource utilization module includes a functional pool 31, a water distribution unit and a three-dimensional hydroponic bed unit; the functional pool 31 is connected to the water reservoir 27; the water distribution unit is connected to the functional pool 31, and is used to distribute the rural domestic sewage in the functional pool 31 to the three-dimensional hydroponic bed unit; the three-dimensional hydroponic bed unit is used for hydroponics of economic crops and for nitrogen and phosphorus resource utilization and deep treatment of the rural domestic sewage in the functional pool 31;

[0054] The clean water tank 35 is connected to the three-dimensional hydroponic bed unit and is used to store rural domestic sewage after deep treatment by the three-dimensional hydroponic bed unit; a water pipe is provided between the regulating tank and the functional tank 31, and a connecting valve is provided in the water pipe;

[0055] The digital intelligence control module includes a regulating pool sewage data collection unit and an analysis control unit for collecting regulating pool sewage data in the regulating pool; the analysis control unit is used to analyze the regulating pool sewage data to determine whether the structured filler 25 in the sewage appropriate treatment module needs to be replaced and the amount of use;

[0056] Through the above technical scheme, this embodiment collects the regulating tank sewage data in the regulating tank through the regulating tank sewage data collection unit, and analyzes the regulating tank sewage data through the analysis control unit to determine whether the structured filler 25 in the sewage appropriate treatment module needs to be replaced and the amount of use; and according to the judgment result, the sewage appropriate treatment module performs secondary treatment on the rural domestic sewage in the regulating tank; the secondary treatment includes filtering impurities, removing organic matter and part of nitrogen and phosphorus; the rural domestic sewage after secondary treatment is stored in the reservoir 27; the water in the reservoir 27 is sent to the functional pool 31 by a pump, and the rural domestic sewage in the functional pool 31 is distributed to the three-dimensional hydroponic bed unit by the water distribution unit; the three-dimensional hydroponic bed unit hydroponically cultivates economic crops in During the non-planting season, the rural domestic sewage in the functional pool 31 is filtered twice; finally, the rural domestic sewage after nitrogen and phosphorus resource utilization and deep treatment is stored in the clear water pool 35 and discharged, so as to achieve effective utilization and treatment of rural domestic sewage, so that the rural domestic sewage discharged from the clear water pool 35 meets the discharge standard; the shell 1 is provided with a water inlet, a water outlet and a door; one end of the water inlet is connected to the regulating tank, and the other end is connected to the water inlet main pipe 21; the water outlet is connected to the clear water pool 35, and the connection method is simple and efficient to achieve sewage treatment and resource utilization, and economic crops are planted, the pollution control entity can achieve positive benefits, improve the enthusiasm for pollution control, and ensure the long-term operation and maintenance of pollution control facilities, which has significant social and environmental benefits.

[0057] As an embodiment of the present invention, the water distribution unit includes a water inlet branch pipe 22 connected to the water inlet main pipe 21, a solenoid valve 23 arranged in the middle of the water inlet branch pipe 22, and a water distributor 24 arranged at the output end of the water inlet branch pipe 22; the water distributor 24 is located above the corresponding structured packing 25;

[0058] Through the above technical scheme, in this embodiment, by opening the solenoid valve 23, the water inlet main pipe 21 introduces the water in the regulating tank into the water inlet branch pipe 22 corresponding to the solenoid valve 23, and then enters the corresponding water distributor 24 through the water inlet branch pipe 22, so that the water distributor 24 distributes the rural domestic sewage on the corresponding regular filler 25, thereby realizing secondary treatment of the water in the regulating tank.

[0059] As an embodiment of the present invention, the water distribution unit includes a plurality of water distribution pipes 32 connected to the functional pool 31, each of the water distribution pipes 32 is provided with a water distribution switch 33, the three-dimensional hydroponic bed unit includes a plurality of three-dimensional hydroponic beds 34, and the water distribution switches 33 correspond to the three-dimensional hydroponic beds 34 one by one;

[0060] Through the above technical scheme, the water distribution switch 33 of this embodiment corresponds to the three-dimensional hydroponic bed 34 one by one; by controlling the opening and closing of each water distribution switch 33, the number of three-dimensional hydroponic beds 34 participating in resource utilization is realized, so as to achieve a balanced relationship between nitrogen and phosphorus nutrients and water volume and the demand for economic crops, and ensure that sewage is stably up to standard and the planting scale is maximized; the planting scale of the three-dimensional hydroponic bed is controlled by the digital control module, and the relationship between the sewage water volume and water quality and the water demand of the resource utilization module and the demand for nitrogen and phosphorus nutrients is balanced, so as to ensure that the effluent is stably up to standard, solve the problem of sewage removal, reduce the investment in water storage facilities, and greatly reduce the equipment volume and floor space; the three-dimensional hydroponic bed is placed inside the intelligent sewage-agriculture complementary device, which can effectively control the ambient temperature and is not affected by seasons and bad weather;

[0061] As an embodiment of the present invention, the resource utilization module further includes a water heating unit and a disinfector 310 arranged below the three-dimensional hydroponic bed group unit; the water heating unit includes a heating corridor 36, a water heating coil 37 and a return water corridor 38 connected in sequence; the heating corridor 36 and the return water corridor 38 are respectively connected to the clear water tank 35, and a heater 39 is provided on the heating corridor 36;

[0062] Through the above technical scheme, this embodiment arranges the water heating coil 37 under the three-dimensional hydroponic bed group unit to effectively control the temperature of the three-dimensional hydroponic bed group unit; the water in the clear water tank 35 is introduced into the warming corridor 36 through a water pump, and after being heated by the heater 39 in the warming corridor 36, it enters the water heating coil 37, and the water is heated by the heater 39 to keep the temperature of the three-dimensional hydroponic bed group unit within a preset range, so that the plants in the three-dimensional hydroponic bed group unit can grow at a suitable temperature, and the water in the water heating coil 37 returns to the clear water tank 35 through the return corridor 38.

[0063] As an implementation mode of the present invention, through the formula;

[0064]

[0065] Count the number of solenoid valves 23 in the open state ;

[0066] in, is the judgment function, when hour, ;when hour, ; is the ceiling function, ; for the current moment; The preset duration; The time corresponding to the preset time in the adjustment pool at the current moment value, Irrigation water quality standards value, is the single sewage treatment volume; Under standard conditions Volumetric load, is the volume of a structured packing 25, is the comprehensive state coefficient;

[0067] Through the above technical solution, The time corresponding to the preset time in the adjustment pool at the current moment Values ​​and irrigation water quality standards The difference in values; in the formula In the judgment function In Reference ;when When, it indicates that the time corresponding to the preset time in the regulating pool at the current moment The value is not higher than the irrigation water quality standard The value indicates that the water quality of the regulating pool is good at the preset time period past the current moment, and can be directly discharged into the functional pool 31 through the drainage pipe. , ;when When, it indicates that the time corresponding to the preset time in the regulating pool at the current moment The value is higher than the irrigation water quality standard The value indicates that the water quality of the regulating pool is poor at the preset time past the current moment, and the water in the regulating pool needs to be treated by the sewage treatment module for secondary treatment. , ; Indicates the amount of sewage that needs to be treated in a single treatment Cumulative amount; Indicates the current situation Volumetric load; The amount that a single structured packing 25 can effectively process per unit time quantity; ; In the formula In the above function, In Reference ;when ; For Round up; finally calculate the number of solenoid valves 23 in the open state ;

[0068] It should be noted that the preset duration , irrigation water quality standards value The single sewage treatment volume is , under standard conditions Volumetric load and the volume of a single structured packing 25 It is a preset value obtained based on experience and will not be described in detail here.

[0069] As an implementation mode of the present invention, by formula:

[0070]

[0071] Calculate the The state factor of the structured packing is 25 ;

[0072] in, is the total number of structured packing 25, ; For the The start time of the most recent liquid conduction of the liquid conduction tube corresponding to the structured packing 25; For the The end time of the most recent liquid conduction of the liquid conduction tube corresponding to the structured packing 25; For the The curve of the change of the most recent liquid guiding speed of the liquid guiding tube corresponding to the structured packing 25 over time; is the preset speed; is the first preset constant;

[0073] Through the above technical solution, a plurality of liquid guide tubes are provided on the supporting structure 26 of this embodiment, which correspond to the structured packing 25 one by one, and are used to guide the liquid in the corresponding structured packing 25 into the water reservoir 27; a liquid flow meter is provided in the liquid guide tube to monitor the real-time flow rate in the liquid guide tube; For the The cumulative value of the liquid guiding speed from the start time to the end time of the most recent liquid guiding of the liquid guiding tube corresponding to the structured packing 25; For the The average liquid conduction speed of the liquid conduction tube corresponding to the structured packing 25 in the most recent liquid conduction; For the The difference between the average liquid guiding speed of the liquid guiding tube corresponding to the structured packing 25 and the preset speed in the most recent liquid guiding; , explain The average liquid guiding speed of the liquid guiding tube corresponding to the structured packing 25 in the most recent liquid guiding is less than the preset speed, indicating that The filter holes on the structured packing 25 are clogged by more impurities, reducing the The effective filtration area of ​​the structured packing is 25, so the The condition of the structured packing 25 is poor; and The greater the absolute value of the difference between the average liquid guiding speed of the liquid guiding tube corresponding to the structured packing 25 in the most recent liquid guiding and the preset speed, the The worse the condition of the structured packing 25, the The state factor of the structured packing is 25 The smaller; when , explain The average liquid guiding speed of the liquid guiding tube corresponding to the structured packing 25 in the most recent liquid guiding is not less than the preset speed, indicating that The structured packing 25 is in good condition; and The greater the difference between the average liquid guiding speed of the liquid guiding tube corresponding to the structured packing 25 in the most recent liquid guiding and the preset speed, the The better the condition of the structured packing 25, the The state factor of the structured packing is 25 The bigger;

[0074] It should be noted that the preset speed and the first preset constant It is a preset value obtained based on experience and will not be described in detail here.

[0075] As an implementation mode of the present invention, by formula:

[0076]

[0077] Calculate the comprehensive state coefficient ;

[0078] Through the above technical solution, this embodiment for The average state coefficient of a structured packing 25; used to represent The comprehensive state coefficient of a structured packing 25; the comprehensive state coefficient The bigger, the The better the overall state of the structured packing 25, the better the overall state coefficient The smaller, the The overall condition of the structured packing 25 is worse.

[0079] As an embodiment of the present invention, according to the number of solenoid valves 23 in the open state The process of controlling the connecting valve and the solenoid valve 23 is:

[0080] S10: The number of solenoid valves 23 in the open state Total number of solenoid valves 23 Make comparisons;

[0081] S20: When When , all electromagnetic valves 23 are closed and the connecting valve in the water pipe is opened;

[0082] when When The state factor of the structured packing is 25 Arrange from large to small, open the front A solenoid valve 23 corresponding to a structured packing 25;

[0083] when When the state coefficient is changed, close all electromagnetic valves 23 and connecting valves. The smallest structured packing 25, and then recalculate the number of solenoid valves 23 in the open state , return to step S10;

[0084] Through the above technical solution, the number of solenoid valves 23 in the open state is Total number of solenoid valves 23 to compare; when When , it means that the water quality of the regulating pool is good after the preset time at the current moment, and can be directly discharged into the functional pool 31 through the drain pipe, so all the solenoid valves 23 are closed and the connecting valve in the water pipe is opened; when , it means that the water quality of the regulating pond has been poor for the preset time period from the current moment, and the current 25 of structured packing is sufficient for processing. The state factor of the structured packing is 25 Arrange from large to small, open the front The electromagnetic valve 23 corresponding to the structured packing 25; , it means that the water quality of the regulating pond has been poor for the preset time period from the current moment, and the current The structured packing 25 is in a poor state and cannot be processed, so all solenoid valves 23 and connecting valves are closed and the state coefficient is replaced. The smallest structured packing 25, and then recalculate the number of solenoid valves 23 in the open state , again with the total number of solenoid valves 23 Re-comparison is performed to prevent the sewage treated by the sewage treatment module from failing to meet the standards due to insufficient effective filtration area of ​​the structured filler 25.

[0085] See also Figure 4 As shown, a control method of an intelligent pollution-agriculture complementary device comprises the following steps:

[0086] S1: Collecting the regulating tank sewage data through the regulating tank sewage data collection unit;

[0087] S2: Analyze the sewage data of the regulating tank and the state of the structured filler 25 by the analysis control unit to determine whether the structured filler 25 in the sewage proper treatment module needs to be replaced; if it needs to be replaced, replace the structured filler 25 and repeat step S2; if it does not need to be replaced, proceed to step S3;

[0088] S3: The analysis control unit executes the actions of the connecting valve and the solenoid valve 23 of the sewage treatment module to perform secondary treatment on the rural domestic sewage in the regulating pool to remove pollutants such as organic matter and suspended matter;

[0089] S4: The rural domestic sewage after secondary treatment enters the functional pool 31 and is distributed to the three-dimensional hydroponic bed unit through the water distribution unit; the three-dimensional hydroponic bed unit is used to hydroponic economic crops and the rural domestic sewage in the functional pool 31 is used for nitrogen and phosphorus resource utilization and deep treatment;

[0090] S5: The deeply treated rural domestic sewage is stored in the clear water tank 35 and comprehensively utilized.

[0091] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An intelligent pollution-agriculture complementary device, comprising a housing (1); characterized in that: The housing (1) is provided with: A sewage treatment module is connected to the regulating tank and is used to perform secondary treatment on rural domestic sewage in the regulating tank; the sewage treatment module comprises a water inlet main pipe (21), a membrane treatment unit group and a water reservoir (27); the membrane treatment unit group comprises a supporting structure (26) arranged above the water reservoir (27), a plurality of structured fillers (25) arranged above the supporting structure (26) and a plurality of water distribution units evenly arranged above the structured fillers (25); the water distribution units correspond to the structured fillers (25) one by one; The resource utilization module comprises a functional pool (31), a water distribution unit and a three-dimensional hydroponic bed unit; the functional pool (31) is connected to the water storage tank (27); the water distribution unit is connected to the functional pool (31) and is used to distribute the rural domestic sewage in the functional pool (31) to the three-dimensional hydroponic bed unit; the three-dimensional hydroponic bed unit is used to hydroponic economic crops and to perform nitrogen and phosphorus resource utilization and deep treatment on the rural domestic sewage in the functional pool (31); A clear water tank (35), connected to the three-dimensional hydroponic bed unit, for storing rural domestic sewage after deep treatment by the three-dimensional hydroponic bed unit; A water pipe is provided between the regulating pool and the functional pool 31, and a connecting valve is provided in the water pipe; The digital intelligence control module comprises a regulating pool sewage data collection unit and an analysis control unit for collecting regulating pool sewage data in the regulating pool; the analysis control unit is used to analyze the regulating pool sewage data to determine whether the structured filler (25) in the sewage proper treatment module needs to be replaced and the amount of replacement; By formula; ； Count the number of solenoid valves (23) in the open state ; in, is the judgment function, when hour, ;when hour, ; is the ceiling function, ; for the current moment; The preset duration; The time corresponding to the preset time in the adjustment pool at the current moment value, Irrigation water quality standards value, is the single sewage treatment volume; Under standard conditions Volumetric load, is the volume of a structured packing (25), is the comprehensive state coefficient; By formula: ； Calculate the The state factor of a structured packing (25) ; in, is the total number of structured packings (25), ; For the The start time of the most recent drainage of the drainage tube corresponding to the structured packing (25); For the The end time of the most recent liquid conduction of the liquid conduction tube corresponding to the structured packing (25); For the A curve of the change of the most recent liquid conduction velocity of the liquid conduction tube corresponding to the structured packing (25) over time; Preset speed; is the first preset constant; By formula: ； Calculate the comprehensive state coefficient .

2. The intelligent pollution-agriculture complementary device according to claim 1 is characterized in that: The water distribution unit comprises a water inlet branch pipe (22) connected to a water inlet main pipe (21), a solenoid valve (23) arranged in the middle of the water inlet branch pipe (22), and a water distributor (24) arranged at the output end of the water inlet branch pipe (22); the water distributor (24) is located above the corresponding structured packing (25).

3. The intelligent pollution-agriculture complementary device according to claim 2 is characterized in that: According to the number of solenoid valves (23) in the open state The process of controlling the connecting valve and the solenoid valve (23) is as follows: S10: The number of solenoid valves (23) that will be in the open state Total number of solenoid valves (23) Make comparisons; S20: When When the electromagnetic valves (23) are closed, the connecting valve (23) in the water pipe is opened; when When The state factor of a structured packing (25) Arrange from large to small, open the front A solenoid valve (23) corresponding to each structured packing (25), closing the connecting valve and other solenoid valves (23); when When the state coefficient is changed, close all solenoid valves (23) and connecting valves. The smallest structured packing (25) and then recalculate the number of solenoid valves (23) in the open state , return to step S10.

4. A control method for an intelligent pollution-agriculture complementary device, applicable to an intelligent pollution-agriculture complementary device according to any one of claims 1 to 3, characterized in that: The control method comprises the following steps: S1: Collecting the regulating tank sewage data through the regulating tank sewage data collection unit; S2: by analyzing the sewage data of the regulating tank and the state of the structured filler (25) through the analysis control unit, it is determined whether the structured filler (25) in the sewage proper treatment module needs to be replaced; if it needs to be replaced, after replacing the structured filler (25), step S2 is repeated; if it does not need to be replaced, step S3 is entered; S3: by analyzing the control unit to execute the actions of the connecting valve and the electromagnetic valve (23) of the sewage treatment module, the rural domestic sewage in the regulating pool is subjected to secondary treatment to remove pollutants such as organic matter and suspended matter; S4: The rural domestic sewage after secondary treatment enters the functional pool (31) and is distributed to the three-dimensional hydroponic bed unit through the water distribution unit; the three-dimensional hydroponic bed unit is used to hydroponic economic crops and the rural domestic sewage in the functional pool (31) is used for nitrogen and phosphorus resource utilization and deep treatment; S5: The deeply treated rural domestic sewage is stored in a clear water tank (35) and utilized comprehensively.

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