Algae membrane reactor, decontamination optimization method, online monitoring method and related equipment

Abstract

The invention relates to the technical field of wastewater treatment, and discloses an algae membrane reactor, a decontamination optimization method, an online monitoring method and related equipment.The MAR reactor comprises an aeration system, an illumination system, a microalgae culture system, a membrane separation system, a water production tank, an algae production tank, a water pump and an intelligent control system; the method comprises the following steps: adding a pure microalgae stock solution through an adding pump, aerating and oxygenating through an air blower, stirring an algae-water mixed solution, enabling the amplified algae-water mixed solution to enter a membrane pool, pumping water by a backwashing pump, recycling the water or returning the water to a front-end advanced treatment unit, enabling a concentrated solution of algae to enter an algae box, centrifugally concentrating, storing and transporting as feed; microalgae species capable of efficiently removing specific pollutants in water are directionally cultivated according to production wastewater with different water quality characteristics, and intelligent operation of comprehensively assisting food industry wastewater treatment is achieved through construction of the self-control integrated algae membrane reactor and construction of the cloud management platform.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and more specifically, to an algae film reactor, a decontamination optimization method, an online monitoring method and related equipment. Background Art

[0002] Under the background of environmental protection and sustainable development, sewage treatment technology is undergoing unprecedented innovation. There are problems with traditional sewage treatment monitoring, and technological innovation is needed to improve sewage treatment efficiency and reduce costs. The use of algae membrane reactors combines physical filtration, adsorption and biodegradation to effectively remove pollutants from water sources, especially nutrients such as nitrogen and phosphorus; microalgae photosynthesis produces oxygen, which can reduce the aeration intensity of the system and save energy. At the same time, the energy required to recycle biomass in the attached growth system is lower.

[0003] As a cutting-edge water and wastewater treatment technology, algae film reactors have attracted widespread attention due to their unique advantages. However, existing algae film reactors still have the following disadvantages: currently the algae species are fixed, and the screening of algae species is done manually. However, in actual applications, the pollutants in sewage are uncertain. When faced with complex or diverse pollutants, overfitting is prone to occur, that is, the model performs well on training data, but has poor generalization ability on new data, which will lead to a decrease in the accuracy of sewage treatment.

[0004] In view of this, the present invention provides an algae film reactor, a decontamination optimization method, an online monitoring method and related equipment. Summary of the invention

[0005] In order to overcome the problems in the prior art, the present invention proposes an algae film reactor, a decontamination optimization method, an online monitoring method and related equipment to achieve efficient treatment and resource utilization of wastewater, while reducing operating costs and improving environmental benefits.

[0006] In a first aspect, the present invention provides an algae film reactor, including an aeration system, an illumination system, a microalgae cultivation system, a membrane separation system, a water production tank, an algae production tank, a water pump and an intelligent control system; wherein:

[0007] An aeration system, which provides oxygen to the microalgae culture system and stirs the algae-water mixture through a blower;

[0008] Lighting system, which provides light source for the growth of microalgae and assists in removing organic matter and nutrients from sewage;

[0009] The microalgae cultivation system provides a suitable environment for growth and reproduction by adding pure microalgae stock solution;

[0010] Membrane separation system to separate microalgae and treated water to achieve algae-water separation;

[0011] The water production tank collects the clean water after the membrane separation system is treated, and reuses or discharges it, or returns it to the front end of the treatment process for further treatment;

[0012] Algae production box, collects concentrated microalgae;

[0013] Pumps to move wastewater and microalgae solution through the system;

[0014] Intelligent control system monitors and automatically adjusts the reactor's operating parameters and organic water quality indicators.

[0015] As a preferred technical solution of the first aspect of the present invention, the working process of the intelligent control system is:

[0016] Step S1: sewage flows into the microalgae cultivation system (photobioreactor) by gravity;

[0017] Step S2: adding pure microalgae stock solution through a dosing pump;

[0018] Step S3: The blower aerates, oxygenates and stirs the algae-water mixture to support the growth of microalgae;

[0019] Step S4: amplifying the algae-water mixture, and the amplified algae-water mixture enters the membrane pool;

[0020] Step S5: utilizing the high-efficiency separation performance of ultrafiltration membranes and combining the growth cycle of microalgae to design the parameters of the MAR algae membrane continuous flow reactor and construct an algae membrane synergistic decontamination high-efficiency reactor;

[0021] Step S6: The backwash pump sucks out water, and the outflowing water can be reused or returned to the front-end deep processing unit;

[0022] Step S7: Algae are concentrated and stored. The concentrated algae liquid enters the algae box and is centrifuged, concentrated, stored and transported out as feed.

[0023] In a second aspect, the present invention provides a decontamination optimization method for an algae film reactor, based on the implementation of the first aspect, comprising the following steps:

[0024] Step A1: Obtain the water quality characteristics of the wastewater to be treated and determine the main pollutants that need to be removed from the wastewater;

[0025] Step A2: Screening out algae species that can remove major pollutants from existing algae species;

[0026] Step A3: algae species adaptability training, performing adaptability training on the selected algae species to obtain the growth and pollutant removal capabilities of the corresponding algae species in a specific wastewater environment;

[0027] Step A4: Conduct small-scale tests on the algae species under laboratory conditions to optimize key parameters for wastewater treatment, including total phosphorus removal rate, total nitrogen removal rate, high salt ion removal rate, and biomass accumulation;

[0028] Step A5: Repeat steps A1-A4 until an algae species suitable for treating the current sewage is obtained, and an algae membrane reactor is designed based on the algae species;

[0029] Step A6: Optimizing the growth conditions of the algae species by controlling the reaction system parameters: the reaction system parameters include hydraulic retention time, aeration volume, reaction system temperature and light intensity,

[0030] Step A7: Based on adjusting the hydraulic retention time and the aeration volume, obtain the key parameters of the algae species for treating wastewater under the current wastewater environment; and evaluate whether the algae species can efficiently treat the wastewater based on the key parameters;

[0031] Step A8: Evaluate whether the algae species is suitable for treating the wastewater; if not, return to the algae species screening step A6; if yes, record the experimental parameters and preserve the algae species.

[0032] As a preferred technical solution of the second aspect of the present invention, laboratory conditions include adjusting the laboratory environment based on hydraulic retention time, aeration volume, reaction system temperature and light intensity, and changing variable parameters based on hydraulic retention time, aeration volume, reaction system temperature and light intensity.

[0033] In a third aspect, the present invention provides an online monitoring method for effluent water quality based on an algae film reactor, based on the implementation of the second aspect, comprising the following steps:

[0034] Step B1: The reactor is started and the algae film reactor begins to operate;

[0035] Step B2: presetting the operating parameters of the reactor according to the results of the laboratory test;

[0036] Step B3: Set the permissible range of effluent water quality indicators according to treatment objectives and discharge standards;

[0037] Step B4: using a water quality monitoring probe to monitor the water quality index of the reactor outlet water in real time;

[0038] Step B5: Determine the water quality index, and compare the monitored water quality index with the preset allowable range; if the water quality index is not within the preset allowable range, automatically adjust the operating parameters of the reactor through the transfer controller;

[0039] Step B6: If the water quality index is within the preset range, keep the current operating parameters unchanged and continue to monitor the water quality; this emphasizes the importance of automated monitoring and adjustment in the operation of the algae film reactor, ensuring the continuity of the treatment process and the stability of the water quality.

[0040] As a preferred technical solution of the third aspect of the present invention, an intelligent operation system is constructed based on the response mechanism of water quality and key parameters of algae growth.

[0041] According to the characteristics of wastewater quality, the microalgae species are determined, and the nutrient ratio for algae growth is determined by small-scale tests.

[0042] According to the overall optimization parameters of effluent water quality, the experimental parameters are recorded, and the algae species that can efficiently treat wastewater are preserved.

[0043] As a preferred technical solution of the third aspect of the present invention, microalgae species that can remove characteristic pollutants in water are cultivated in a targeted manner according to production wastewater with different water quality characteristics, and the operation is achieved through a self-controlled integrated algae film reactor.

[0044] As a preferred technical solution of the third aspect of the present invention, the equipment effluent water quality online monitoring and automatic parameter adjustment technology, docking coagulation sedimentation and filtration treatment technology, combined with algae density, nitrogen, phosphorus and organic matter-related water quality indicators, coupled water volume and trans-membrane pressure difference sewage process indicators, to build an intelligent operation platform.

[0045] As a preferred technical solution of the third aspect of the present invention, water quality indicators and sewage process indicators are monitored in real time based on sensors;

[0046] Based on the indicator data from the sensor, it is preliminarily processed and stored, and transmitted to the monitoring center through the communication module;

[0047] Based on the real-time monitoring of water quality parameters by the monitoring center, the system sets alarm thresholds. When the water quality parameters exceed the thresholds, the monitoring data is analyzed and processed, and various reports and charts are generated to provide decision-making basis for managers;

[0048] Managers can view water quality data anytime and anywhere via the Internet.

[0049] In a fourth aspect, the present invention provides a computer program product stored on a computer-readable medium, comprising a computer-readable program, which, when executed on an electronic device, provides a user input interface to implement the third aspect.

[0050] The technical effects and advantages of the algae film reactor, decontamination optimization method, online monitoring method and related equipment of the present invention are as follows:

[0051] The present invention targets production wastewater with different water quality characteristics and cultivates microalgae species that can efficiently remove characteristic pollutants in water. Through the construction of a self-controlled integrated algae film reactor and the establishment of a cloud management platform, it realizes all-round intelligent operation of auxiliary wastewater treatment in the food industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of the structure of an algae film reactor provided by the present invention;

[0053] Figure 2 This is a flow chart of a decontamination optimization method for an algae film reactor of the present invention;

[0054] Figure 3 This is a flow chart of the online monitoring program of effluent water quality of the present invention;

[0055] Figure 4 This is a schematic diagram of the data interface of the water quality sensor of the present invention;

[0056] Figure 5 The effect of water purification by microalgae of the present invention is shown in FIG. Figure 1 ;

[0057] Figure 6 The effect of water purification by microalgae of the present invention is shown in FIG. Figure 2 ;

[0058] Figure 7 This is a schematic diagram of the algae health zone of the present invention. DETAILED DESCRIPTION

[0059] 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.

[0060] Example 1

[0061] See also Figure 1 As shown, an algae film reactor described in this embodiment includes an aeration system, an illumination system, a microalgae cultivation system, a membrane separation system, a water production tank, an algae production tank, a water pump and an intelligent control system;

[0062] The aeration system provides oxygen to the microalgae culture system through a blower to support the photosynthesis and growth of the microalgae. At the same time, it stirs the algae-water mixture to ensure full contact between the microalgae and the sewage, thereby improving the treatment efficiency.

[0063] The lighting system provides the light source required for the growth of microalgae, promotes the photosynthesis of microalgae, converts light energy into chemical energy, and helps remove organic matter and nutrients in sewage.

[0064] The microalgae cultivation system, as the main place for the growth of microalgae, provides a suitable environment for the growth and reproduction of microalgae by adding pure microalgae stock solution, while treating pollutants in sewage.

[0065] The membrane separation system uses ultrafiltration membrane materials to efficiently separate microalgae and treated water, achieving algae-water separation, so that the treated water can be reused or further processed, while the microalgae are collected for other uses.

[0066] The water production tank collects the clean water after being treated by the membrane separation system. This water can be reused or discharged, or returned to the front end of the treatment process for further treatment.

[0067] The algae production box collects the concentrated microalgae, which can be further processed, such as centrifugal concentration, and then stored or exported for use as feed.

[0068] The water pump transports sewage and microalgae solution in the system, ensures the flow of fluid in the system, and maintains the normal operation of the entire reactor.

[0069] The intelligent control system monitors and automatically adjusts the operating parameters of the reactor, such as water quality indicators such as algae density, nitrogen, phosphorus and organic matter, as well as process indicators such as water volume and transmembrane pressure difference, to ensure the efficient and stable operation of the reactor and reduce energy consumption and manual operation.

[0070] The design of the entire algae membrane reactor aims to achieve high efficiency and automation of sewage treatment by integrating these components, while recovering valuable microalgae biomass and realizing the recycling of resources. Specifically, sewage flows into the microalgae cultivation system (photobioreactor) by gravity, pure microalgae stock solution is added through the dosing pump, the blower aerates and aerates and stirs the algae-water mixture, the amplified algae-water mixture enters the membrane pool, the backwash pump sucks out the water, the effluent is reused or returned to the front-end deep treatment unit, and the algae concentrate enters the algae box and is centrifuged, concentrated, stored and transported out as feed.

[0071] Specifically, the workflow of the intelligent control system is:

[0072] Step S1: The sewage flows into the microalgae cultivation system (photobioreactor) by gravity.

[0073] Step S2: adding pure microalgae stock solution through a dosing pump.

[0074] Step S3: The blower aerates, oxygenates and stirs the algae-water mixture to support the growth of microalgae.

[0075] Step S4: the algae-water mixture is amplified, and the amplified algae-water mixture enters the membrane pool.

[0076] Step S5: Using the high-efficiency separation performance of the ultrafiltration membrane and combining it with the growth cycle of microalgae, the parameters of the MAR algae membrane continuous flow reactor are designed to construct an algae membrane synergistic decontamination high-efficiency reactor.

[0077] Step S6: The backwash pump sucks out water, which can be reused or returned to the front-end deep processing unit.

[0078] Step S7: Algae are concentrated and stored. The concentrated algae liquid enters the algae box and is centrifuged, concentrated, stored and transported out as feed.

[0079] Example 2

[0080] like Figure 2 As shown, the undetailed part of this embodiment is as shown in Example 1. This embodiment provides a decontamination optimization method for an algae film reactor, comprising the following steps:

[0081] Step A1: Obtain the water quality characteristics of the wastewater to be treated and determine the main pollutants that need to be removed from the wastewater;

[0082] Step A2: Screening out algae species that can remove major pollutants from existing algae species;

[0083] Step A3: algae species adaptability training, performing adaptability training on the selected algae species to obtain the growth and pollutant removal capabilities of the corresponding algae species in a specific wastewater environment;

[0084] Step A4: Conduct small-scale tests on the algae species under laboratory conditions to optimize key parameters for wastewater treatment, including total phosphorus removal rate, total nitrogen removal rate, high salt ion removal rate, and biomass accumulation;

[0085] It should be noted that laboratory conditions include hydraulic retention time, aeration volume, reaction system temperature and light intensity, and the laboratory environment is adjusted by changing variable parameters such as hydraulic retention time, aeration volume, reaction system temperature and light intensity.

[0086] Step A5: Repeat steps A1-A4 until an algae species suitable for treating the current sewage is obtained, and an algae membrane reactor is designed based on the algae species;

[0087] Step A6: Optimizing the growth conditions of the algae species by controlling the reaction system parameters: the reaction system parameters include hydraulic retention time, aeration volume, reaction system temperature and light intensity,

[0088] Step A7: Based on adjusting the hydraulic retention time and the aeration volume, obtain the key parameters of the algae species for treating wastewater under the current wastewater environment; and evaluate whether the algae species can efficiently treat the wastewater based on the key parameters;

[0089] Step A8: Evaluate whether the algae species is suitable for treating the wastewater; if not, return to the algae species screening step A6; if yes, record the experimental parameters and preserve the algae species.

[0090] Example 3

[0091] like Figure 3As shown in the embodiment 2, the part not described in detail in this embodiment is as shown in the embodiment 2. This embodiment provides an online monitoring method of effluent water quality based on an algae membrane reactor, which monitors water quality indicators online and automatically adjusts operating parameters according to a preset allowable range to ensure stable and efficient operation of the reactor. It includes the following steps:

[0092] Step B1: The reactor is started and the algae film reactor begins to operate;

[0093] Step B2: presetting the operating parameters of the reactor according to the results of the laboratory test;

[0094] Step B3: Set the permissible range of effluent water quality indicators according to treatment objectives and discharge standards;

[0095] Step B4: using a water quality monitoring probe to monitor the water quality index of the reactor outlet water in real time;

[0096] Step B5: Determine the water quality index, and compare the monitored water quality index with the preset allowable range; if the water quality index is not within the preset allowable range, automatically adjust the operating parameters of the reactor through the transfer controller;

[0097] Step B6: If the water quality index is within the preset range, keep the current operating parameters unchanged and continue to monitor the water quality; this emphasizes the importance of automated monitoring and adjustment in the operation of the algae film reactor, ensuring the continuity of the treatment process and the stability of the water quality.

[0098] Based on the response mechanism of water quality and key parameters of algae growth, an intelligent operation system is constructed. According to the characteristics of wastewater quality, the microalgae species are determined, the nutrient ratio of algae growth is determined by small-scale tests, the parameters are optimized according to the overall effluent quality, the experimental parameters are recorded, and the algae species that efficiently treat wastewater are preserved for subsequent applications to treat specific wastewater and realize the recycling of resources;

[0099] Specifically, this embodiment targets production wastewater with different water quality characteristics and cultivates microalgae species that can efficiently remove characteristic pollutants in water. Through the construction of an automatic integrated algae film reactor and the establishment of a cloud management platform, it realizes all-round intelligent operation of auxiliary food industry wastewater treatment.

[0100] In order to effectively remove the pollutants such as nitrogen, phosphorus and high salt in the resource utilization of food industry wastewater, the targeted cultivation of microalgae is used to efficiently remove the characteristic pollutants in the water. For the wastewater to be treated with specific water quality characteristics, the existing algae species preserved in the laboratory are screened, and the algae species are separated and purified from the wastewater to be treated. The growth of microalgae under the water quality conditions and the water purification efficiency are investigated using laboratory pilot devices. The microalgae species that can efficiently purify characteristic pollutants in the laboratory have unique biologically active growth factors. The CGF functional substance in Chlorella after cell wall breaking can improve the regeneration capacity of normal cells by more than 25%, producing better quality cells. The influence of different environmental parameters on the growth of microalgae and the purification efficiency of pollutants is investigated and a model is established to provide a data model and theoretical basis for subsequent industrial production applications.

[0101] Microalgae can effectively carry out photosynthesis, convert toxic substances such as ammonia nitrogen, nitrite and phosphate into organic compounds and produce oxygen, thereby increasing the dissolved oxygen level. The COD removal rate of the microalgae species MAR-73I No. 1 cultivated in the laboratory is 70% to 73%, the total nitrogen removal rate is 70% to 85%, the total phosphorus removal rate is 80% to 95%, and the ammonia nitrogen removal rate is 60% to 72%. The biomass of the microalgae grows well, and the biomass grows from the initial 0.3g / L to a maximum of 1.13g / L within 7 days of hydraulic retention time. The specific water purification effect of microalgae can be seen in Figure 5-6 shown.

[0102] The MAR algae membrane reactor can realize continuous flow operation of sewage treatment. By adjusting the external light source and aeration intensity, the autotrophic and heterotrophic growth of microalgae are controlled, and the stability of the sewage treatment process is enhanced. The high-throughput anti-pollution new ultrafiltration membrane material independently developed by the company in the early stage has efficient separation performance, and can achieve algae-water separation without destroying the growth of microalgae. The low surface energy membrane material prevents microalgae from clogging the membrane pores, and also makes the effluent water quality meet the reuse standard.

[0103] The equipment's effluent water quality online monitoring and automated parameter adjustment technology is connected to pre-treatment technologies such as coagulation sedimentation and filtration. It combines water quality indicators such as algae density, nitrogen, phosphorus and organic matter, and couples process indicators such as water volume and transmembrane pressure difference to build an intelligent operation platform.

[0104] Based on the real-time data collection of the equipment, the oxygen demand and sewage intake are accurately calculated, and the parameters such as fans and light sources are automatically adjusted based on feedback to achieve stable operation of the biochemical section, reduce energy consumption, drug consumption, and reduce manual operation;

[0105] Specifically, the equipment's effluent water quality online monitoring and automated parameter adjustment technology: docking with coagulation sedimentation, filtration and other pre-treatment technologies, combining water quality indicators such as algae density, nitrogen, phosphorus and organic matter, coupling water volume, trans-membrane pressure difference and other process indicators, building an intelligent operation platform, and combining machine learning and other methods to further optimize the MAR algae membrane process package design, operation and management parameters.

[0106] Through the cloud platform module, the control center unifies command and dispatch, effectively avoiding or reducing economic losses caused by operation and maintenance and production that do not meet standards, and significantly reducing operation and maintenance and labor costs, achieving monitoring and optimization of the entire sewage treatment process, and ensuring the efficiency and stability of sewage treatment.

[0107] At the outlet of the photobioreactor, an online water quality monitoring system is set up. With online automatic analysis instruments as the core, it uses sensor technology, automatic measurement technology, automatic control technology, computer application technology, and related special analysis software and communication networks to form a comprehensive online automatic monitoring system. Based on real-time data collection of equipment, it accurately calculates oxygen demand and sewage intake, and automatically adjusts parameters such as fans and light sources to achieve stable operation of the biochemical section, reduce energy consumption, drug consumption, and reduce manual operations. Figure 7 As shown, the microalgae in the reactor can be maintained within a healthy range through intelligent monitoring.

[0108] Specifically, water quality indicators and sewage process indicators are monitored in real time based on sensors; various sensors are used to monitor physical, chemical and biological parameters in water in real time. Common sensors include water temperature sensors, pH sensors, dissolved oxygen sensors, chemical oxygen demand (COD) sensors, biochemical oxygen demand (BOD) sensors, ammonia nitrogen sensors, etc.

[0109] Build an intelligent operation platform for MAR sewage treatment equipment, and the control center will unify the command and dispatch, so as to effectively avoid or reduce the economic losses caused by operation and maintenance and production failures, and significantly reduce the operation and maintenance and labor costs. Through the process screen, you can intuitively see the production status of each process section of the current sewage treatment equipment, assist managers to accurately control the operation status of the plant, visualize and digitize equipment management, help optimize the use of equipment and personnel, and assist in the refined management of sewage treatment operation and maintenance. The cloud platform also provides hierarchical management of mobile APP applications, so that each sewage treatment site can view the process data and report data of different sewage treatment projects on the mobile Internet.

[0110] Example 4

[0111] In an exemplary embodiment, a computer program product stored on a computer-readable medium includes a computer-readable program for providing a user input interface to implement an algae film reactor when executed on an electronic device.

[0112] For example, the computer readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc.

[0113] In an exemplary embodiment, a computer program product or a computer program is also provided, the computer program product or the computer program includes one or more program codes, and the one or more program codes are stored in a computer-readable storage medium. One or more processors of an electronic device can read the one or more program codes from the computer-readable storage medium, and the one or more processors execute the one or more program codes, so that the electronic device can execute the above-mentioned algae film reactor.

[0114] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0115] It should be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and / or other information.

[0116] A person of ordinary skill in the art will understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. The above-mentioned storage medium can be a read-only memory, a disk or an optical disk, etc.

[0117] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0118] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only one, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0119] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0120] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0121] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An algae film reactor, characterized in that: It includes an aeration system, a lighting system, a microalgae cultivation system, a membrane separation system, a water production tank, an algae production tank, a water pump and an intelligent control system; among which: An aeration system, which provides oxygen to the microalgae culture system and stirs the algae-water mixture through a blower; Lighting system, which provides light source for the growth of microalgae and assists in removing organic matter and nutrients from sewage; The microalgae cultivation system provides a suitable environment for the growth and reproduction of microalgae by adding pure microalgae stock solution; Membrane separation system to separate microalgae and treated water to achieve algae-water separation; The water production tank collects the clean water after the membrane separation system is treated, and reuses or discharges it, or returns it to the front end of the treatment process for further treatment; Algae production box, collects concentrated microalgae; Pumps to move wastewater and microalgae solution through the system; Intelligent control system monitors and automatically adjusts the reactor's operating parameters and organic water quality indicators.

2. The algae film reactor according to claim 1, characterized in that: The working process of the intelligent control system is: Step S1: sewage flows into the microalgae cultivation system (photobioreactor) by gravity; Step S2: adding pure microalgae stock solution through a dosing pump; Step S3: The blower aerates, oxygenates and stirs the algae-water mixture to support the growth of microalgae; Step S4: amplifying the algae-water mixture, and the amplified algae-water mixture enters the membrane pool; Step S5: utilizing the high-efficiency separation performance of ultrafiltration membranes and combining the growth cycle of microalgae to design the parameters of the MAR algae membrane continuous flow reactor and construct an algae membrane synergistic decontamination high-efficiency reactor; Step S6: The backwash pump sucks out water, and the outflowing water can be reused or returned to the front-end deep processing unit; Step S7: Algae are concentrated and stored. The concentrated algae liquid enters the algae box and is centrifuged, concentrated, stored and transported out as feed.

3. A decontamination optimization method for an algae film reactor, based on the implementation of an algae film reactor according to claims 1-2, characterized in that: The following steps are involved: Step A1: Obtain the water quality characteristics of the wastewater to be treated and determine the main pollutants that need to be removed from the wastewater; Step A2: Screening out algae species that can remove major pollutants from existing algae species; Step A3: algae species adaptability training, performing adaptability training on the selected algae species to obtain the growth and pollutant removal capabilities of the corresponding algae species in a specific wastewater environment; Step A4: Conduct small-scale tests on the algae species under laboratory conditions to optimize key parameters for wastewater treatment, including total phosphorus removal rate, total nitrogen removal rate, high salt ion removal rate, and biomass accumulation; Step A5: Repeat steps A1-A4 until an algae species suitable for treating the current sewage is obtained, and an algae membrane reactor is designed based on the algae species; Step A6: Optimizing the growth conditions of the algae species by controlling the reaction system parameters: the reaction system parameters include hydraulic retention time, aeration volume, reaction system temperature and light intensity, Step A7: Based on adjusting the hydraulic retention time and the aeration volume, obtain the key parameters of the algae species for treating wastewater under the current wastewater environment; and evaluate whether the algae species can efficiently treat the wastewater based on the key parameters; Step A8: Evaluate whether the algae species are suitable for treating the wastewater; if not, return to the algae species screening step A6; If yes, record the experimental parameters and deposited algae species.

4. The decontamination optimization method of an algae film reactor according to claim 3, characterized in that: The laboratory conditions include adjusting the laboratory environment based on the variable parameters of hydraulic retention time, aeration rate, reaction system temperature and light intensity.

5. An online monitoring method for effluent water quality based on an algae film reactor, based on the implementation of an algae film reactor decontamination optimization method according to claims 3-4, characterized in that: The following steps are involved: Step B1: The reactor is started and the algae film reactor begins to operate; Step B2: presetting the operating parameters of the reactor according to the results of the laboratory test; Step B3: Set the permissible range of effluent water quality indicators according to treatment objectives and discharge standards; Step B4: using a water quality monitoring probe to monitor the water quality index of the reactor outlet water in real time; Step B5: Determine the water quality index, and compare the monitored water quality index with the preset allowable range; if the water quality index is not within the preset allowable range, automatically adjust the operating parameters of the reactor through the transfer controller; Step B6: If the water quality index is within the preset range, keep the current operating parameters unchanged and continue to monitor the water quality; this emphasizes the importance of automated monitoring and adjustment in the operation of the algae film reactor, ensuring the continuity of the treatment process and the stability of the water quality.

6. The method for online monitoring of effluent quality based on an algae film reactor according to claim 5, characterized in that: Based on the response mechanism of key parameters of water quality and algae growth, an intelligent operation system is constructed. According to the characteristics of wastewater quality, the microalgae species are determined, and the nutrient ratio for algae growth is determined by small-scale tests. Based on the overall optimization parameters of effluent water quality, the experimental parameters are recorded and the algae species that can efficiently treat wastewater are preserved.

7. The method for online monitoring of effluent quality based on an algae film reactor according to claim 6, characterized in that: Microalgae species that can remove characteristic pollutants in water are cultivated in a targeted manner according to production wastewater with different water quality characteristics, and are operated through a self-controlled integrated algae film reactor.

8. The method for online monitoring of effluent quality based on an algae film reactor according to claim 7, characterized in that: The equipment uses online monitoring and automated parameter adjustment technology for effluent water quality, docking with coagulation sedimentation and filtration treatment technologies, combining water quality indicators related to algae density, nitrogen, phosphorus and organic matter, coupling sewage process indicators such as water volume and trans-membrane pressure difference, to build an intelligent operation platform.

9. The method for online monitoring of effluent quality based on an algae film reactor according to claim 8, characterized in that: Real-time monitoring of water quality indicators and sewage process indicators based on sensors; Based on the indicator data from the sensor, it is preliminarily processed and stored, and transmitted to the monitoring center through the communication module; Based on the real-time monitoring of water quality parameters by the monitoring center, the system sets alarm thresholds. When the water quality parameters exceed the thresholds, the monitoring data is analyzed and processed, and various reports and charts are generated to provide decision-making basis for managers; Managers can view water quality data anytime and anywhere via the Internet.

10. A computer program product stored on a computer readable medium, characterized in that: It comprises a computer-readable program, which, when executed on an electronic device, provides a user input interface to implement an online monitoring method for effluent water quality based on an algae film reactor as described in any one of claims 5 to 9.

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