Percolate ammonia nitrogen recovery method and system, intelligent terminal and storage medium

Abstract

The invention relates to a leachate ammonia nitrogen recovery method and system, an intelligent terminal and a storage medium, and relates to the technical field of garbage disposal, and the method comprises the following steps: obtaining treatment trigger information of leachate; controlling a preset pretreatment device to pretreat the leachate according to the treatment trigger information, and outputting preset pretreatment completion trigger information; according to the pretreatment completion trigger information, controlling the pretreatment device to discharge the leachate into a preset degradation device for oxidative degradation so as to convert ammonia nitrogen in the leachate into nitrate, and outputting preset oxidative degradation completion trigger information; and according to the oxidative degradation completion trigger information, controlling a preset recovery device to perform gas recovery on the leachate containing the nitrate so as to convert the nitrate into nitrogen. The method has the effect of improving the ammonia nitrogen recovery effect of the leachate.

Description

Technical Field

[0001] The present application relates to the field of waste treatment technology, and in particular to a method, system, intelligent terminal and storage medium for recovering ammonia nitrogen from leachate. Background Art

[0002] Waste incineration is the main method of waste disposal. The large amount of leachate it produces is a difficult-to-treat high-concentration organic wastewater. The leachate is composed of many types of substances, including a variety of toxic and harmful pollutants and environmental priority controlled pollutants, and has a high content of carcinogens. If it is discharged directly into the water without treatment, it will cause great harm to the ecological environment and human health. It is one of the main reasons for the "secondary pollution" of the environment by sanitary landfills.

[0003] In the relevant technology, the leachate treatment process of urban waste incineration plants mainly adopts two steps: pretreatment and biochemical treatment. The pretreatment mainly adopts physical or chemical means to remove solid impurities, animated plant oil, etc. in the leachate. The biochemical treatment mainly uses anaerobic, anoxic and aerobic process technologies to degrade ammonia nitrogen, organic matter and other pollutants in the leachate, so that the treated leachate meets the emission standards before being discharged.

[0004] Regarding the above-mentioned related technologies, the landfill leachate contains a large amount of ammonia nitrogen. The ammonia nitrogen content in the leachate is reduced by using biochemical treatment methods only to meet the emission standards. Although the purpose of protecting the environment is achieved, the loss of ammonia nitrogen resources is caused, resulting in poor ammonia nitrogen recovery effect in the leachate, and there is still room for improvement. Summary of the invention

[0005] In order to improve the ammonia nitrogen recovery effect of leachate, the present application provides a leachate ammonia nitrogen recovery method, system, intelligent terminal and storage medium.

[0006] In the first aspect, the present application provides a method for recovering ammonia nitrogen from leachate, which adopts the following technical solution: A method for recovering ammonia nitrogen from leachate, comprising: Obtaining leachate treatment trigger information; Controlling a preset pretreatment device to pretreatment the leachate according to the treatment trigger information, and outputting preset pretreatment completion trigger information; According to the pretreatment completion trigger information, the pretreatment device is controlled to discharge the leachate into a preset degradation device for oxidative degradation to convert the ammonia nitrogen in the leachate into nitrate, and the preset oxidative degradation completion trigger information is output; According to the trigger information of the completion of oxidation degradation, the preset recovery device is controlled to recover the nitrate-containing leachate for gas recovery to convert the nitrate into nitrogen.

[0007] By adopting the above technical scheme, after the leachate is pretreated and oxidatively degraded, the ammonia nitrogen in the leachate is converted into nitrate, and then the recovery device is controlled to convert the nitrate in the leachate into nitrogen gas, thereby recovering the ammonia nitrogen in the leachate without causing the loss of ammonia nitrogen, thereby improving the ammonia nitrogen recovery effect of the leachate.

[0008] Optionally, the step of controlling a preset pretreatment device to pretreat the leachate according to the treatment trigger information includes: Controlling the pretreatment device to discharge the leachate into a preset regulating tank according to the processing trigger information, and obtaining the pH information of the leachate; Determine whether the pH information meets the requirements of the preset degradation pH information; If it meets the requirements, the preset precipitation trigger information is output; If it does not meet the requirements, the pretreatment device is controlled to adjust the pH of the leachate according to the pH information and the degradation pH information, and the preset precipitation trigger information is output; The pretreatment device is controlled according to the sedimentation triggering information to perform sedimentation filtration on the leachate.

[0009] By adopting the above technical solution, the pH value of the leachate is adjusted so that the pH value of the leachate is suitable for subsequent oxidative degradation, thereby improving the effect of the leachate pretreatment.

[0010] Optionally, the step of controlling the pretreatment device to adjust the pH of the leachate according to the pH information and the degradation pH information includes: Analyze the pH information and the degradation pH information to determine the pH gap parameter information; Obtaining the information of the amount of water discharged from the leachate; Analyze the discharged water volume information, pH difference parameter information and preset pH adjustment information to determine the pH adjustment parameter information; The pretreatment device is controlled to adjust the pH value of the leachate according to the pH value adjustment parameter information.

[0011] By adopting the above technical scheme, the pH adjustment parameter information is determined after analysis based on the pH difference parameter information, the discharged water volume information and the pH adjustment information, so as to control the pretreatment device to adjust the pH of the leachate with the pH adjustment parameter information, thereby improving the accuracy of adjusting the pH of the leachate.

[0012] Optionally, the step of controlling the pretreatment device to adjust the pH of the leachate according to the pH parameter information includes: Control the preset regulating components to enter the regulating pool; Determine the discharge water depth information according to the discharge water volume information and the preset water volume depth relationship information; Determine the start adjustment port information of the adjustment component according to the discharge water depth information and the preset water depth adjustment port relationship information; Analyze the start-up adjustment port information and the adjustment pH parameter information to determine the adjustment port release parameter information; The regulating component is controlled to adjust the pH value of the leachate according to the release parameter information of the regulating port and the preset rotation parameter information.

[0013] By adopting the above technical scheme, the regulating component enters the regulating tank, and the regulating port release parameter information is determined according to the starting regulating port information and the regulating pH parameter information, so as to control the regulating component to adjust the pH of the leachate according to the regulating port release parameter information and the rotation parameter information, so that the regulating port in the leachate releases acid or alkali, and follows the rotation of the regulating component to make the release of acid and alkali more uniform, thereby improving the efficiency of pH regulation.

[0014] Optionally, the step of controlling the pretreatment device to perform precipitation filtration on the leachate according to the precipitation trigger information includes: Obtain the total water volume information of the leachate; Determine flocculant parameter information according to total water volume information and preset water volume flocculant relationship information; According to the precipitation trigger information and the flocculant parameter information, the pretreatment device is controlled to add the preset flocculant into the leachate, and the preset addition completion trigger information is output; According to the addition completion trigger information, the pretreatment device is controlled to discharge the leachate into a preset flocculation sedimentation tank for sedimentation and filtration.

[0015] By adopting the above technical scheme, the flocculant parameter information is determined according to the total water volume information and the water volume flocculant relationship information, so that the pretreatment device is controlled by the flocculant parameter information to add the flocculant to the leachate, so that sufficient but not excessive flocculant is used to prepare the leachate for precipitation, thereby improving the precipitation effect of the leachate.

[0016] Optionally, the step of controlling the pretreatment device to discharge the leachate into a preset flocculation sedimentation tank for sedimentation filtration according to the addition completion trigger information includes: According to the addition completion trigger information, the pretreatment device is controlled to discharge the leachate into the preset folded plate flocculation area; Obtain water inflow trigger information of the folded plate flocculation zone; Obtain floc parameter information of leachate based on water inflow trigger information; When the floc parameter information meets the requirements of the preset sedimentation floc parameter information, the discharge flap flocculation zone information is obtained; According to the information of discharge from the folded plate flocculation zone, the pretreatment device is controlled to discharge the leachate from the folded plate flocculation zone into the preset sedimentation zone for sedimentation and filtration.

[0017] By adopting the above technical scheme, after the leachate enters the folded plate flocculation area, the floc parameter information of the leachate is detected. When the floc parameter information meets the requirements of the sedimentation floc parameter information, the discharge folded plate flocculation area information is detected, so that the leachate is discharged from the folded plate flocculation area corresponding to the discharge folded plate flocculation area information into the sedimentation area for sedimentation, thereby improving the efficiency of floc formation of impurities in the leachate while ensuring the sedimentation effect.

[0018] Optionally, the step of controlling the pretreatment device to discharge the leachate from the folded plate flocculation zone into a preset sedimentation zone for sedimentation filtration according to the information of discharging the folded plate flocculation zone includes: According to the information of discharging the folded plate flocculation area, the pretreatment device is controlled to discharge the leachate from the folded plate flocculation area into the sedimentation area to precipitate flocs, and the sedimentation thickness information of the flocs is obtained; Determine whether the sediment thickness information meets the preset discharge thickness information requirements; If it does not meet the requirements, the sediment thickness information is continuously obtained for cyclic judgment; If it meets the requirements, the thickness distribution information of the flocs is obtained; The preset discharge component is controlled according to the thickness distribution information to discharge the flocs from the sedimentation area.

[0019] By adopting the above technical scheme, after the leachate enters the sedimentation area, the sedimentation thickness information of the flocs is detected. When the sedimentation thickness information meets the requirements of the discharge thickness information, the thickness distribution information of the flocs is detected, so as to control the discharge component to discharge the flocs from the sedimentation area according to the thickness distribution information, thereby improving the efficiency of floc discharge on the basis of reducing the loss of leachate.

[0020] In a second aspect, the present application provides a leachate ammonia nitrogen recovery system, which adopts the following technical solution: A leachate ammonia nitrogen recovery system, comprising: An acquisition module, used to acquire processing trigger information; A memory for storing a program of a method for recovering ammonia nitrogen from leachate as described in any one of the above items; The program in the processor memory can be loaded and executed by the processor to implement a method for recovering ammonia nitrogen from leachate as described in any one of the above items.

[0021] By adopting the above technical solution, the processor loads and executes a program of a method for recovering ammonia nitrogen from leachate stored in the memory, so that the acquisition module obtains a series of data related to the recovery of ammonia nitrogen from the leachate, and the pretreatment device first pretreats the leachate, and then controls the degradation device to oxidize and degrade the ammonia nitrogen in the pretreated leachate to generate nitrate, and finally uses the recovery device to convert the nitrate into nitrogen gas, thereby improving the ammonia nitrogen recovery effect of the leachate.

[0022] In a third aspect, the present application provides a smart terminal, which adopts the following technical solution: An intelligent terminal comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes a method for recovering ammonia nitrogen from a leachate as described in any one of the above items.

[0023] By adopting the above technical solution and operating the intelligent terminal, the processor is made to load and execute a program of a method for recovering ammonia nitrogen from leachate stored in the memory, so that the pretreatment device first pretreats the leachate, and then controls the degradation device to oxidize and degrade the ammonia nitrogen in the pretreated leachate to generate nitrate, and finally uses the recovery device to convert the nitrate into nitrogen gas, thereby improving the ammonia nitrogen recovery effect of the leachate.

[0024] In a fourth aspect, the present application provides a computer storage medium capable of storing a corresponding program, which has the characteristics of being convenient for improving the ammonia nitrogen recovery effect of leachate, and adopts the following technical solution: A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any of the above-mentioned leachate ammonia nitrogen recovery methods.

[0025] By adopting the above technical scheme, a computer program for a method for recovering ammonia nitrogen from leachate is stored in a computer-readable storage medium, so that a processor loads and executes the computer program in the storage medium, so that the pretreatment device first pretreats the leachate, and then controls the degradation device to oxidize and degrade the ammonia nitrogen in the pretreated leachate to generate nitrate, and finally uses the recovery device to convert the nitrate into nitrogen gas, thereby improving the ammonia nitrogen recovery effect of the leachate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the leachate is pretreated and oxidized and degraded, the ammonia nitrogen in the leachate is converted into nitrate, and then the recovery device is controlled to convert the nitrate in the leachate into nitrogen gas, thereby recovering the ammonia nitrogen in the leachate without causing the loss of ammonia nitrogen, thereby improving the ammonia nitrogen recovery effect of the leachate; 2. By making the regulating component enter the regulating tank, the regulating port release parameter information is determined according to the start regulating port information and the pH adjustment parameter information, so as to control the regulating component to adjust the pH of the leachate according to the regulating port release parameter information and the rotation parameter information, so that the regulating port in the leachate releases acid or alkali, and follows the rotation of the regulating component to make the release of acid and alkali more uniform, thereby improving the efficiency of pH adjustment; 3. After the leachate enters the folded plate flocculation area, the floc parameter information of the leachate is detected. When the floc parameter information meets the requirements of the sedimentation floc parameter information, the discharge folded plate flocculation area information is detected, so that the leachate is discharged from the folded plate flocculation area corresponding to the discharge folded plate flocculation area information into the sedimentation area for sedimentation, thereby improving the efficiency of floc formation of impurities in the leachate while ensuring the sedimentation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of a method for recovering ammonia nitrogen from leachate in an embodiment of the present application.

[0028] Figure 2 It is a flow chart of the steps of controlling a preset pretreatment device to pretreat the leachate according to the processing trigger information in an embodiment of the present application.

[0029] Figure 3 It is a flow chart of the steps of controlling the pretreatment device to adjust the pH of the leachate according to the pH information and the degradation pH information in the embodiment of the present application.

[0030] Figure 4 It is a flow chart of the steps of controlling the pretreatment device to adjust the pH value of the leachate according to the pH parameter information in an embodiment of the present application.

[0031] Figure 5 It is a flow chart of the steps of controlling the pretreatment device to perform precipitation filtration on the leachate according to the precipitation trigger information in an embodiment of the present application.

[0032] Figure 6 It is a flow chart of the steps of controlling the pretreatment device to discharge the leachate into a preset flocculation sedimentation tank for sedimentation and filtration according to the addition completion trigger information in an embodiment of the present application.

[0033] Figure 7 It is a flow chart of the steps of controlling the pretreatment device to discharge the leachate from the folded plate flocculation zone into a preset sedimentation zone for sedimentation and filtration according to the information discharged from the folded plate flocculation zone in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-Figure 7 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] The embodiment of the present application discloses a method for recovering ammonia nitrogen in leachate after garbage incineration, and specifically discloses a processing terminal, a pretreatment device, a degradation device and a recovery device. The processing terminal is connected to the pretreatment device, the degradation device and the recovery device through data wires, respectively, so as to realize data interaction and control. After the processing terminal receives the processing trigger information of the leachate, the pretreatment device is controlled to pretreat the leachate, so as to remove impurities in the leachate and make the leachate suitable for subsequent degradation. The degradation device is then controlled to oxidatively degrade the ammonia nitrogen in the leachate and convert the ammonia nitrogen into nitrate. Finally, the recovery device is controlled to convert the nitrate in the leachate into nitrogen gas, so as to complete the recovery of ammonia nitrogen in the leachate, and not only reduce the ammonia nitrogen content according to the emission standard, but also prevent the loss of ammonia nitrogen, thereby improving the recovery effect of ammonia nitrogen in the leachate.

[0036] Reference Figure 1 The present application discloses a method for recovering ammonia nitrogen from leachate, comprising the following steps: Step S100: obtaining leachate treatment trigger information.

[0037] The processing trigger information refers to the trigger data for the recovery and processing of the leachate, which is stored in the processing terminal by the operator. The processing terminal obtains the processing trigger information, and the operator can select the trigger in the processing terminal.

[0038] Step S101: controlling a preset pretreatment device to pretreatment the leachate according to the treatment trigger information, and outputting preset pretreatment completion trigger information.

[0039] After the processing terminal receives the processing trigger information, the processing terminal issues an instruction to control the pretreatment device to pre-treat the leachate. The specific method is as follows Figure 2 The steps are carried out to facilitate the subsequent oxidation and degradation of the leachate, and the pretreatment completion trigger information is output to the processing terminal to provide data support for the subsequent determination of when to oxidize and degrade the leachate.

[0040] The pretreatment device refers to a device for performing operations such as pH adjustment and impurity removal on the leachate, including a pH adjustment tank, a folded plate flocculation zone and a sedimentation zone, which are specifically set by the operator according to the actual situation. The pretreatment completion trigger information refers to the trigger data of the pretreatment device completing the pretreatment of the leachate. The operator stores the pretreatment completion trigger information in the secondary terminal of the pretreatment device. In one embodiment, after the operator determines that the pretreatment is completed, the pretreatment completion trigger information is sent to the processing terminal in the secondary terminal; in another embodiment, after the secondary terminal determines that the leachate has completed the pretreatment through a sensor, it automatically sends the pretreatment completion trigger information to the processing terminal.

[0041] Step S102: according to the pretreatment completion trigger information, the pretreatment device is controlled to discharge the leachate into the preset degradation device for oxidative degradation to convert the ammonia nitrogen in the leachate into nitrate, and the preset oxidative degradation completion trigger information is output.

[0042] Among them, after the processing terminal receives the pretreatment completion trigger information, the processing terminal controls the pretreatment device to discharge the leachate into the degradation device for oxidative degradation, thereby converting the ammonia nitrogen in the leachate into nitrate, facilitating the subsequent conversion of nitrate into nitrogen gas, and outputs the oxidative degradation completion trigger information to the processing terminal, providing data support for the subsequent determination of when to recover ammonia nitrogen.

[0043] The degradation device refers to a device for oxidative degradation of leachate, converting ammonia nitrogen in the leachate into nitrate. First, the organic matter in the leachate is decomposed by microorganisms in the membrane bioreactor, and nitrite bacteria are used to convert ammonia nitrogen and total nitrogen into nitrite, and then nitrifying bacteria are used to convert nitrite into nitrate. The leachate containing nitrate and nitrite is discharged into a degassing tower, and the carbon dioxide gas in the water is removed by blowing, so as to adjust the pH value of the leachate to 6-9. Then, the ozone generator is used to convert all the remaining nitrite in the leachate into nitrate, and the leachate is sterilized.

[0044] The oxidative degradation completion trigger information refers to the trigger data for completing the oxidative degradation of the leachate. The oxidative degradation completion trigger information is stored in the secondary terminal of the degradation device by the operator. In one embodiment, after the operator determines that the degradation is completed, the oxidative degradation completion trigger information is sent to the processing terminal in the secondary terminal; in another embodiment, after the secondary terminal determines that the leachate has completed degradation through a sensor, it automatically sends the oxidative degradation completion trigger information to the processing terminal.

[0045] Step S103: According to the oxidative degradation completion trigger information, a preset recovery device is controlled to perform gas recovery on the leachate containing nitrate to convert the nitrate into nitrogen.

[0046] Among them, after the processing terminal receives the trigger information of the completion of oxidative degradation, the processing terminal issues an instruction to control the recovery device to convert the nitrate in the leachate into nitrogen gas, thereby avoiding the loss of ammonia nitrogen in the leachate and improving the recovery effect of ammonia nitrogen in the leachate.

[0047] The recovery device refers to a device that converts nitrate in the leachate into nitrogen gas. A denitrification reactor can be used to reduce nitrate and nitrite to nitrogen gas.

[0048] Reference Figure 2 The steps of controlling the preset pretreatment device to pretreat the leachate according to the processing trigger information include: Step S200: controlling the pretreatment device to discharge the leachate into a preset regulating tank according to the processing trigger information, and obtaining the pH information of the leachate.

[0049] Among them, after the processing terminal receives the processing trigger information, the processing terminal controls the high-pressure pump in the pretreatment device to discharge the leachate into the regulating tank, and detects the pH information of the leachate, providing basic support for the subsequent pretreatment of the leachate.

[0050] The regulating tank refers to the space where the leachate is pre-treated, which is determined by the operator based on the actual situation. The pH information refers to the pH of the leachate, which is detected by the online pH monitoring system installed in the regulating tank and sent to the treatment terminal.

[0051] Step S201: determining whether the pH information meets the preset degradation pH information requirement.

[0052] The degradation pH information refers to the pH suitable for degradation by the degradation device. In this application, pH 6-9 is taken as an example and stored in the processing terminal by the operator. The requirement for the degradation pH information is to be within the pH range corresponding to the degradation pH information.

[0053] The processing terminal determines whether the pH corresponding to the pH information is within the pH range corresponding to the degradation pH information, thereby determining whether the pH of the leachate needs to be adjusted to make the leachate suitable for subsequent oxidative degradation.

[0054] Step S2011: If it meets the requirements, the preset precipitation trigger information is output.

[0055] Among them, if the processing terminal determines that the pH corresponding to the pH information is within the pH range corresponding to the degradation pH information, it indicates that the pH of the leachate is suitable for subsequent oxidative degradation, so the precipitation trigger information is output to provide a specific time for the subsequent precipitation and filtration of impurities in the leachate.

[0056] The precipitation trigger information refers to the trigger data for starting precipitation filtration of impurities in the leachate, which is stored in the processing terminal by the operator and output by the processing terminal according to preset conditions.

[0057] Step S2012: If not, the pretreatment device is controlled to adjust the pH of the leachate according to the pH information and the degradation pH information, and the preset precipitation trigger information is output.

[0058] If the processing terminal determines that the pH value corresponding to the pH value information is not within the pH value range corresponding to the degradation pH value information, it indicates that the pH value of the leachate is not suitable for subsequent oxidation degradation. Therefore, the pH value of the leachate needs to be adjusted. The pretreatment device is controlled to adjust the pH value of the leachate according to the pH value information and the degradation pH value information. The specific method is as follows. Figure 3 The process performs the steps and outputs the precipitation trigger information, providing a specific time for the subsequent precipitation and filtration of impurities in the leachate.

[0059] The precipitation trigger information in this step is consistent with the precipitation trigger information in step S2011, and will not be repeated here.

[0060] Step S202: controlling the pretreatment device to perform sedimentation filtration on the leachate according to the sedimentation trigger information.

[0061] After the pretreatment device receives the precipitation trigger information, the pretreatment device is controlled to perform precipitation filtration on the leachate. The specific method is as follows Figure 5 steps to remove impurities in the leachate and provide suitable water quality for subsequent degradation and oxidation.

[0062] Reference Figure 3 The steps of controlling the pretreatment device to adjust the pH of the leachate according to the pH information and the degradation pH information include: Step S300: Analyze the pH information and the degradation pH information to determine pH difference parameter information.

[0063] Among them, the pH difference parameter information refers to the difference between the pH corresponding to the pH information and the pH range corresponding to the degradation pH information. The processing terminal determines the endpoint value of the degradation pH information close to the pH corresponding to the pH information, and then calculates the difference between the pH corresponding to the pH information and the endpoint value.

[0064] Step S301: Obtaining the discharge volume information of the leachate.

[0065] Among them, the discharged water volume information refers to the amount of water discharged from the pretreatment device by the high-pressure pump into the regulating tank. The treatment terminal times the drainage time and calculates the product of the flow rate and time to obtain the discharged water volume.

[0066] Step S302: Analyze the discharged water volume information, the pH difference parameter information and the preset pH adjustment information to determine the pH adjustment parameter information.

[0067] Among them, adjusting the pH parameter information refers to the amount of acid or alkali added to adjust the pH of the leachate, which is determined by the processing terminal after analysis based on the discharged water volume information, the pH difference parameter information and the pH adjustment information. The analysis process is: first, determine whether the leachate is too acidic or too alkaline based on the positive or negative difference corresponding to the pH difference parameter information. If it is too acidic, alkali needs to be added. If it is too alkaline, acid needs to be added. The amount of acid or alkali added is determined based on the absolute value of the difference corresponding to the pH difference parameter information and the pH of the acid or alkali corresponding to the pH adjustment information. The two are directly proportional, and the pH corresponding to the pH adjustment information is a constant. Therefore, under unit water volume, the greater the absolute value of the difference corresponding to the pH difference parameter information, the greater the amount of acid or alkali required to be added. The coefficient between the two is determined by the operator based on actual conditions. After determining the acid or alkali added per unit water volume, it is multiplied by the water volume corresponding to the discharged water volume information to obtain the total amount of acid or alkali added.

[0068] The pH adjustment information refers to the pH of the acid and base used to adjust the pH, and is stored in the processing terminal by the operator according to the actual situation.

[0069] Step S303: controlling the pretreatment device to adjust the pH of the leachate according to the pH adjustment parameter information.

[0070] Among them, after the reprocessing terminal determines the pH adjustment parameter information, the pretreatment device is controlled according to the acid or alkali corresponding to the pH adjustment parameter information and the quantity to adjust the pH of the leachate so that the leachate is suitable for subsequent oxidation degradation. The specific method is referred to Figure 4 steps.

[0071] Reference Figure 4 The step of controlling the pretreatment device to adjust the pH of the leachate according to the pH parameter information includes: Step S400: controlling a preset regulating component to enter the regulating pool.

[0072] Among them, the adjustment component refers to a device in the pretreatment device for adjusting the pH value of the leachate. A U-shaped hollow tube may be used. The hollow tube includes a main pipe and a branch pipe that are interconnected. A plurality of branch pipes are arranged at different distances from the main pipe. An adjustment port is arranged along the length direction of the branch pipe. The opening and closing of the adjustment port is controlled by a solenoid valve. The main pipe is connected to a storage bin for storing acid and alkali, and the entire main pipe and branch pipe are controlled to move and rotate by a linear module and a motor.

[0073] The linear module in the processing terminal control adjustment component moves the main pipe and the branch pipe into the adjustment tank according to the preset moving distance, so that the lowest end of the branch pipe reaches the bottom of the adjustment tank, providing basic support for the subsequent adjustment component to release acid or alkali.

[0074] Step S401: Determine the discharge water depth information according to the discharge water volume information and preset water volume-depth relationship information.

[0075] The water volume depth relationship information refers to a database storing the corresponding relationship between water volume and depth. The operator injects different water volumes into the regulating tank and records the corresponding depths, so that the two are stored in the database after one-to-one correspondence. The discharge water depth information refers to the depth of the leachate in the regulating tank. The processing terminal inputs the water volume corresponding to the discharge water volume information into the database corresponding to the water volume depth relationship information and matches and outputs it.

[0076] Step S402: determining the start adjustment port information of the adjustment component according to the discharge water depth information and the preset water depth adjustment port relationship information.

[0077] Among them, the water depth regulating port relationship information refers to a database storing the corresponding relationship between water depth and regulating port. The operator selects the regulating port of the corresponding depth on the branch pipe according to different water depths, and stores the two in the database after one-to-one correspondence. The start regulating port information refers to the regulating port information used to adjust the pH value of the leachate. The processing terminal inputs the water depth corresponding to the discharge water depth information into the database corresponding to the water depth regulating port information and matches and outputs it.

[0078] Step S403: Analyze the start-up adjustment port information and the pH adjustment parameter information to determine the adjustment port release parameter information.

[0079] Among them, the regulating port release parameter information refers to the amount of acid or alkali released by the activated regulating port. The processing terminal calculates the amount of acid or alkali corresponding to the adjusting pH parameter information and the number of regulating ports corresponding to the activated regulating port information to obtain the total amount of acid or alkali released by each activated regulating port.

[0080] Step S404: controlling the regulating component to regulate the pH value of the leachate according to the regulating port release parameter information and the preset rotation parameter information.

[0081] Among them, after the processing terminal determines the release parameter information of the adjustment port, the processing terminal controls the start of the adjustment port to release the acid or alkali in the amount of acid or alkali corresponding to the adjustment port parameter information, and synchronously controls the motor to drive the adjustment component to rotate according to the speed corresponding to the rotation parameter information, so as to evenly release the acid or alkali in every part of the leachate, thereby improving the efficiency of the pH adjustment of the leachate.

[0082] The rotation parameter information refers to the speed at which the regulating component rotates in the leachate, and the specific value is determined by the operator according to the actual situation.

[0083] Reference Figure 5 The step of controlling the pretreatment device to perform precipitation filtration on the leachate according to the precipitation trigger information includes: Step S500: Obtaining the total water volume information of the leachate.

[0084] The total water volume information refers to the water volume value of the leachate. The total water volume information of this step is consistent with the discharged water volume information in step S301, and will not be repeated here.

[0085] Step S501: determining flocculant parameter information according to total water volume information and preset water volume flocculant relationship information.

[0086] Among them, the water volume and flocculant relationship information refers to a database storing the corresponding relationship between the water volume and the flocculant quantity. The water volume is proportional to the flocculant quantity. The proportional coefficient between the two is determined by the operator according to the actual situation, and the operator stores the two in the database after one-to-one correspondence.

[0087] The flocculant parameter information refers to the quantity parameter of the added flocculant. The processing terminal inputs the water volume corresponding to the total water volume information into the database corresponding to the water volume flocculant relationship information to match the output flocculant quantity.

[0088] Step S502: controlling the pretreatment device to add the preset flocculant into the leachate according to the precipitation trigger information and the flocculant parameter information, and outputting the preset addition completion trigger information.

[0089] Among them, after the processing terminal receives the precipitation trigger information, the processing terminal controls the pretreatment device to add flocculant to the leachate in an amount corresponding to the flocculant parameter information, so that the flocculant aggregates the tiny particles in the leachate, and outputs the addition completion trigger information, which is the specific time for the subsequent precipitation of flocs.

[0090] Flocculants are polymers used to aggregate tiny particles in the leachate to form larger flocs that are easier to separate. Addition completion trigger information refers to the trigger data for completion of flocculant addition. The operator stores the addition completion trigger information in the secondary terminal of the pretreatment device. In one embodiment, after the operator determines that the addition is complete, the operator sends the addition completion trigger information in the secondary terminal to the treatment terminal; in another embodiment, after the secondary terminal determines that the flocculant addition is complete through a sensor, it automatically sends the addition completion trigger information to the treatment terminal.

[0091] Step S503: according to the addition completion trigger information, the pretreatment device is controlled to discharge the leachate into a preset flocculation sedimentation tank for sedimentation and filtration.

[0092] After the processing terminal receives the addition completion trigger information, the processing terminal controls the high-pressure pump in the pretreatment device to discharge the leachate into the flocculation sedimentation tank, thereby precipitating and filtering the flocs. The specific method is as follows Figure 6 steps to make the leachate more suitable for subsequent oxidative degradation.

[0093] The flocculation sedimentation tank refers to the area used for the precipitation and filtration of flocs in the leachate, which is set up by the operator according to actual conditions.

[0094] Reference Figure 6 The steps of controlling the pretreatment device to discharge the leachate into a preset flocculation sedimentation tank for sedimentation and filtration according to the addition completion trigger information include: Step S600: controlling the pretreatment device to discharge the leachate into the preset folded plate flocculation area according to the addition completion trigger information.

[0095] Among them, after the processing terminal receives the addition completion trigger information, the processing terminal controls the high-pressure pump in the pretreatment device to discharge the leachate in the regulating tank into the folded plate flocculation area, so that the tiny particles in the leachate form flocs.

[0096] The folded plate flocculation zone refers to the area in the flocculation sedimentation tank used to form flocs, including a plurality of interconnected grids, in which a plurality of special-shaped wave plates are arranged, so that the leachate flows and collides in the channels formed by the special-shaped wave plates, prolonging the flow time of the leachate to form flocs.

[0097] Step S601: obtaining water inflow triggering information of the folded plate flocculation zone.

[0098] Among them, the water inlet trigger information refers to the trigger data of the leachate entering the folded plate flocculation area, which is sensed by the infrared sensor and output to the processing terminal.

[0099] Step S602: acquiring floc parameter information of the leachate based on the water inflow trigger information.

[0100] Among them, the floc parameter information refers to the size data of the floc. After the processing terminal receives the water inlet trigger information, it determines which grid of the folded plate flocculation zone the leachate enters according to the water inlet trigger information, thereby controlling the camera in the grid to shoot the floc, and determining the size of the floc after prediction by the trained convolutional neural network.

[0101] Step S603: When the floc parameter information meets the preset requirements of the sedimentation floc parameter information, the discharge flap flocculation zone information is obtained.

[0102] The sedimentation floc parameter information refers to the floc size data that can be sedimented, and the specific size is determined by the operator according to the actual situation. The requirement for the sedimentation floc parameter information is that the floc size is not less than that corresponding to the sedimentation floc parameter information.

[0103] By determining through the processing terminal that the size data corresponding to the floc parameter information is not less than the floc size corresponding to the sedimentation floc parameter information, it is indicated that the leachate can be precipitated. Therefore, the discharge folded plate flocculation zone information is obtained to provide basic support for the subsequent discharge of the leachate.

[0104] The discharge folded plate flocculation area information refers to the folded plate flocculation area from which the leachate is discharged for sedimentation and filtration. When the processing terminal determines that the size of the flocs meets the size requirements for sedimentation, the device serial number that sends the size data is identified, thereby determining the folded plate flocculation area that has reached the required size based on the correspondence between the preset serial number and the folded plate flocculation area.

[0105] Step S604: according to the information of discharging the folded plate flocculation zone, the pretreatment device is controlled to discharge the leachate from the folded plate flocculation zone into a preset sedimentation zone for sedimentation and filtration.

[0106] Among them, after the processing terminal determines the discharge of the folded plate flocculation zone information, the channel from the folded plate flocculation zone corresponding to the folded plate flocculation zone information to the next folded plate flocculation zone is closed, and the channel from the folded plate flocculation zone to the sedimentation zone is opened, so that the leachate enters the sedimentation zone for sedimentation and filtration. The specific method is referred to Figure 7 steps.

[0107] The sedimentation area refers to the area used to precipitate and filter flocs in the leachate, which is determined by the operator based on actual conditions.

[0108] Reference Figure 7 The steps of controlling the pretreatment device to discharge the leachate from the folded plate flocculation area into a preset sedimentation area for sedimentation filtration according to the information of discharging the folded plate flocculation area include: Step S700: according to the information of discharging the folded plate flocculation zone, the pretreatment device is controlled to discharge the leachate from the folded plate flocculation zone into the sedimentation zone to precipitate flocs, and the sedimentation thickness information of the flocs is obtained.

[0109] Among them, after the processing terminal determines to discharge the folded plate flocculation area information, the channel from the folded plate flocculation area corresponding to the folded plate flocculation area information to the next folded plate flocculation area is closed, and the channel from the folded plate flocculation area to the sedimentation area is opened, so that the leachate enters the sedimentation area, and the sedimentation thickness information of the flocs is detected, providing data support for the subsequent determination of whether filtration can be performed.

[0110] The sedimentation thickness information refers to the thickness of the flocs at the bottom of the sedimentation zone, which is detected by the ultrasonic sensor and sent to the processing terminal.

[0111] Step S701: Determine whether the sediment thickness information meets the preset discharge thickness information requirement.

[0112] The discharge thickness information refers to the minimum thickness value for discharging flocs from the sedimentation area, and the specific value is determined by the operator according to the actual situation. The discharge thickness information requirement refers to a thickness value not less than that corresponding to the discharge thickness information.

[0113] The processing terminal determines whether the thickness corresponding to the sedimentation thickness information is not less than the thickness value corresponding to the discharge thickness information, thereby determining whether the flocs in the sedimentation area are sufficient, providing data support for the subsequent discharge of flocs.

[0114] Step S7011: If not, continue to obtain sediment thickness information for cyclic judgment.

[0115] If the processing terminal determines that the thickness corresponding to the sedimentation thickness information is less than the thickness value corresponding to the discharge thickness information, it indicates that the flocs are less precipitated, so the sedimentation thickness information continues to be detected, thereby continuing to pay attention to the sedimentation of the flocs.

[0116] Step S7012: If it is in compliance, the thickness distribution information of the floc is obtained.

[0117] Among them, if the processing terminal determines that the thickness corresponding to the sedimentation thickness information is not less than the thickness value corresponding to the discharge thickness information, it means that the flocs are precipitated enough and can be discharged. Therefore, the thickness distribution information of the flocs is detected to provide data support for the subsequent control of the discharge component to discharge the flocs.

[0118] The thickness distribution information refers to the distribution positions of flocs whose thickness meets the discharge requirements in the sedimentation zone, and is obtained by marking the positions that meet the requirements when the ultrasonic sensor detects the thickness of the flocs.

[0119] Step S70121: Control the preset discharge component to discharge the flocs from the sedimentation area according to the thickness distribution information.

[0120] After the processing terminal obtains the thickness distribution information, the processing terminal controls the discharge component to move to the position corresponding to the thickness distribution information, thereby discharging the flocs at the position corresponding to the thickness distribution information from the sedimentation area.

[0121] The discharge component refers to a device used to discharge flocs at the bottom of the sedimentation area. A siphon device can be used to control one end of the siphon tube of the siphon device to extend to a position corresponding to the thickness distribution information, and the other end to extend to a collection container, so that the pump draws out the air in the siphon tube, and the flocs are discharged from the sedimentation tank under the action of liquid gravity and pressure difference.

[0122] Based on the same inventive concept, an embodiment of the present invention provides a leachate ammonia nitrogen recovery system, comprising: An acquisition module is used to acquire processing trigger information, pH information, discharged water volume information, total water volume information, water inlet trigger information, floc parameter information, discharge folded plate flocculation zone information, sediment thickness information and thickness distribution information; A memory for storing a program of a method for recovering ammonia nitrogen from leachate; The program in the processor memory can be loaded and executed by the processor to realize a method for recovering ammonia nitrogen from leachate.

[0123] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0124] An embodiment of the present invention provides a computer-readable storage medium storing a computer program that can be loaded and executed by a processor for a method for recovering ammonia nitrogen from leachate.

[0125] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0126] Based on the same inventive concept, an embodiment of the present invention provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed by a method for recovering ammonia nitrogen from a leachate.

[0127] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0128] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A method for recovering ammonia nitrogen from leachate, characterized in that: include: Obtaining leachate treatment trigger information; Controlling a preset pretreatment device to pretreatment the leachate according to the treatment trigger information, and outputting preset pretreatment completion trigger information; According to the pretreatment completion trigger information, the pretreatment device is controlled to discharge the leachate into a preset degradation device for oxidative degradation to convert the ammonia nitrogen in the leachate into nitrate, and the preset oxidative degradation completion trigger information is output; According to the trigger information of the completion of oxidation degradation, the preset recovery device is controlled to recover the nitrate-containing leachate for gas recovery to convert the nitrate into nitrogen.

2. A leachate ammonia nitrogen recovery method according to claim 1, characterized in that: The steps of controlling a preset pretreatment device to pretreat the leachate according to the treatment trigger information include: Controlling the pretreatment device to discharge the leachate into a preset regulating tank according to the processing trigger information, and obtaining the pH information of the leachate; Determine whether the pH information meets the requirements of the preset degradation pH information; If it meets the requirements, the preset precipitation trigger information is output; If it does not meet the requirements, the pretreatment device is controlled to adjust the pH of the leachate according to the pH information and the degradation pH information, and the preset precipitation trigger information is output; The pretreatment device is controlled according to the sedimentation triggering information to perform sedimentation filtration on the leachate.

3. A leachate ammonia nitrogen recovery method according to claim 2, characterized in that: The steps of controlling the pretreatment device to adjust the pH of the leachate according to the pH information and the degradation pH information include: Analyze the pH information and the degradation pH information to determine the pH gap parameter information; Obtaining the information of the amount of water discharged from the leachate; Analyze the discharged water volume information, pH difference parameter information and preset pH adjustment information to determine the pH adjustment parameter information; The pretreatment device is controlled to adjust the pH value of the leachate according to the pH value adjustment parameter information.

4. A leachate ammonia nitrogen recovery method according to claim 3, characterized in that: The step of controlling the pretreatment device to adjust the pH of the leachate according to the pH parameter information includes: Control the preset regulating components to enter the regulating pool; Determine the discharge water depth information according to the discharge water volume information and the preset water volume depth relationship information; Determine the start-up adjustment port information of the adjustment component according to the discharge water depth information and the preset water depth adjustment port relationship information; Analyze the start-up adjustment port information and the adjustment pH parameter information to determine the adjustment port release parameter information; The regulating component is controlled to adjust the pH value of the leachate according to the parameter information released from the regulating port and the preset rotation parameter information.

5. A method for recovering ammonia nitrogen from leachate according to claim 2, characterized in that: The steps of controlling the pretreatment device to perform precipitation filtration on the leachate according to the precipitation trigger information include: Obtain the total water volume information of the leachate; Determine flocculant parameter information according to total water volume information and preset water volume flocculant relationship information; According to the precipitation trigger information and the flocculant parameter information, the pretreatment device is controlled to add the preset flocculant into the leachate, and the preset addition completion trigger information is output; According to the addition completion trigger information, the pretreatment device is controlled to discharge the leachate into a preset flocculation sedimentation tank for sedimentation and filtration.

6. A method for recovering ammonia nitrogen from leachate according to claim 5, characterized in that: The steps of controlling the pretreatment device to discharge the leachate into a preset flocculation sedimentation tank for sedimentation and filtration according to the addition completion trigger information include: According to the addition completion trigger information, the pretreatment device is controlled to discharge the leachate into the preset folded plate flocculation area; Obtain water inflow trigger information of the folded plate flocculation zone; Obtain floc parameter information of leachate based on water inflow trigger information; When the floc parameter information meets the requirements of the preset sedimentation floc parameter information, the discharge flap flocculation zone information is obtained; According to the information of discharge from the folded plate flocculation area, the pretreatment device is controlled to discharge the leachate from the folded plate flocculation area into the preset sedimentation area for sedimentation and filtration.

7. A method for recovering ammonia nitrogen from leachate according to claim 6, characterized in that: The steps of controlling the pretreatment device to discharge the leachate from the folded plate flocculation zone into a preset sedimentation zone for sedimentation filtration according to the information of discharging the folded plate flocculation zone include: According to the information of discharging the folded plate flocculation area, the pretreatment device is controlled to discharge the leachate from the folded plate flocculation area into the sedimentation area to precipitate flocs, and the sedimentation thickness information of the flocs is obtained; Determine whether the sediment thickness information meets the preset discharge thickness information requirements; If it does not meet the requirements, the sediment thickness information is continuously obtained for cyclic judgment; If it meets the requirements, the thickness distribution information of the flocs is obtained; The preset discharge component is controlled according to the thickness distribution information to discharge the flocs from the sedimentation area.

8. A leachate ammonia nitrogen recovery system, characterized in that: include An acquisition module, used to acquire processing trigger information; A memory for storing a program of a method for recovering ammonia nitrogen from leachate according to any one of claims 1 to 7; The program in the processor memory can be loaded and executed by the processor to implement a method for recovering ammonia nitrogen from leachate as described in any one of claims 1 to 7.

9. An intelligent terminal, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes a method for recovering ammonia nitrogen from leachate as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and execute a method for recovering ammonia nitrogen from leachate as claimed in any one of claims 1 to 7.

Images