A wastewater treatment method and system based on separation of hydroxyl from blue algae in water

Abstract

The present invention discloses a wastewater treatment method based on separating hydroxyl from cyanobacteria in water, which method comprises the following steps: S1, using a primary dehydration reaction unit to perform primary dehydration treatment on a water body containing cyanobacteria and monitor and record dehydration data in real time; S2, using the dehydration data as a control parameter to adaptively adjust the ozone reaction unit to achieve oxidation treatment and gas phase separation of the primary wastewater; S3, passing the oxidizing gas into a secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detect and record algae cake data; S4, inputting the conversion liquid and the secondary wastewater into a purification reaction unit together; The present invention also discloses a wastewater treatment system based on separating hydroxyl from cyanobacteria in water. The present invention can realize the automated management of cyanobacteria-containing water bodies in polluted waters by constructing a complete water extraction, flow and discharge system, and realize the intelligentization and normalization of pollution management.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment method and system based on separation of hydroxyl groups from blue algae in water. Background Art

[0002] In freshwater and marine ecosystems, some algae multiply or aggregate rapidly in a short period of time to form algal blooms, causing damage to the aquatic ecosystem and bringing a series of harmful effects. This type of algal bloom is called harmful algal blooms (HABs). The outbreak of harmful algal blooms has become one of the major environmental problems worldwide.

[0003] In recent years, with the rapid development of industry and agriculture and the continuous expansion of urbanization in human society, factory wastewater, domestic sewage and aquaculture wastewater have been continuously input into lakes, reservoirs and marine systems, resulting in excessive levels of nutrients such as nitrogen, phosphorus and potassium in water bodies, large accumulation of organic matter, and increasingly serious eutrophication of freshwater basins and near-shore water bodies. Under the combined effects of rising water temperature, increased sunshine, and poor water fluidity, planktonic organisms, mainly algae, will over-reproduce in eutrophic water bodies. After the outbreak of harmful algal blooms, a large amount of metabolites will be released, breeding bacteria; at the same time, the water becomes turbid, the photosynthesis of aquatic plants is affected, the dissolved oxygen content in the water body decreases rapidly, fish and other aquatic animals suffocate due to lack of oxygen, and the diversity of aquatic organisms decreases.

[0004] Among them, the algae that cause freshwater blooms are mainly Cyanobacteria. Cyanobacteria, also known as blue-green algae, are a type of single-cell prokaryotes that do not contain chloroplasts but contain chlorophyll a. Various photosynthetic pigments are attached to the thylakoids in the cytoplasm and have strong photosynthetic ability. Bloom cyanobacteria are divided into Chrococcus and Phycozoa. Chrococcus is a single cell or colony, mainly including Microcystis and Glechoma; Phycozoa is a filamentous body, mainly including Pseudo-Anabaena, Microcystis and Aphanizomenon.

[0005] At present, the problem of cyanobacteria treatment in inland lakes has not been well solved, which has greatly aggravated the water environment pollution of available freshwater resources. Therefore, the treatment of cyanobacteria is urgent. The cyanobacteria bloom phenomenon is usually manifested as abnormal reproduction of cyanobacteria, changes in water transparency and dissolved oxygen, etc., which lead to deterioration of water quality, affect the social service functions of lakes such as water supply, aquaculture, and entertainment, and endanger the safety of the water environment and the entire ecosystem. The key to its effective treatment is to study the separation, dehydration and wastewater treatment technologies of cyanobacteria.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] In view of the problems in the related art, the present invention proposes a wastewater treatment method and system based on separating hydroxyl groups from cyanobacteria in water bodies, so as to overcome the above-mentioned technical problems existing in the existing related technology.

[0008] To this end, the specific technical solution adopted by the present invention is as follows:

[0009] According to one aspect of the present invention, a wastewater treatment method based on separation of hydroxyl groups from water cyanobacteria is provided, the method comprising the following steps:

[0010] S1. Perform primary dehydration treatment on the water body containing cyanobacteria by using the primary dehydration reaction unit and monitor and record the dehydration data in real time, and output the primary wastewater and algae residue respectively after the treatment is completed;

[0011] S2. Adaptively adjust the ozone reaction unit using the dehydration data as a control parameter to achieve oxidation treatment and gas phase separation of primary wastewater, and output oxidation gas and conversion liquid respectively;

[0012] S3, passing the oxidizing gas into the secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detect and record the algae cake data, and after the reaction is completed, output the secondary wastewater and the algae cake respectively;

[0013] S4. The conversion liquid and the secondary wastewater are input into the purification reaction unit together, and the water body is purified by hydroxyl free radicals and filtered to discharge the algae-free water body and waste residue separately.

[0014] Further, the primary dehydration reaction unit is used to perform primary dehydration treatment on the water body containing cyanobacteria and real-time monitoring and recording of dehydration data, and primary wastewater and algae residue are outputted separately after the treatment, including the following steps:

[0015] S11, extracting the water containing blue algae in the water area to be treated into the agitator through a pump and a pumping pipe, and using a liquid flow meter to monitor the initial flow data in the extraction process in real time;

[0016] S12, according to the linear relationship between the initial flow data and the amount of flocculant added, periodically add an appropriate amount of flocculant to the agitator and stir and mix to obtain a flocculent water body;

[0017] S13, inputting the flocculent water into the centrifugal reactor, and after the inputting is completed, weighing the weight of the flocculent water in the container and calibrating it as the initial mass;

[0018] S14, driving the centrifugal reactor to operate to achieve solid-liquid separation of the flocculent water body, and finally outputting the primary wastewater in the liquid phase and the algae residue in the solid phase, and weighing the mass of the algae residue and recording it as the mass of the algae residue.

[0019] Furthermore, the flocculant is a ferrate composite flocculant, and the dehydration data includes initial flow data, flocculant addition amount, and dehydration rate;

[0020] The calculation formula of dehydration rate is:

[0021] ;

[0022] In the formula, T Indicates the dehydration rate;

[0023] m 1 represents the initial mass;

[0024] m 2 Indicates the quality of algal residue.

[0025] Furthermore, the dehydration data is used as a control parameter to adaptively adjust the ozone reaction unit to achieve oxidation treatment and gas phase separation of primary wastewater, and the output of oxidation gas and conversion liquid respectively includes the following steps:

[0026] S21, using the dehydration data as a control parameter to input and control the initial power of the ozone generator and the gas-liquid mixing pump;

[0027] S22, the ozone gas generated by the ozone generator is mixed with the primary wastewater through a gas-liquid mixing pump until it enters the ozone reactor;

[0028] S23, real-time monitoring and adaptive control of the internal environment of the ozone reactor to oxidize the primary wastewater;

[0029] S24, using a vacuum pump to extract the gas inside the ozone reactor in real time as an oxidizing gas, and using a pipeline to discharge the mixed liquid after the reaction as a conversion liquid.

[0030] Furthermore, the internal environment of the ozone reactor is monitored and adaptively controlled in real time, and the oxidation treatment of the primary wastewater includes the following steps:

[0031] S231, monitor the internal temperature of the ozone reactor in real time and control the temperature between 35-40°C;

[0032] S232, monitoring the pH value inside the ozone reactor in real time, and controlling the pH value between 7.5 and 9.5 by adding a pH regulator to the ozone reactor;

[0033] S233, monitoring the internal pressure of the ozone reactor in real time, and calculating the pressure error between the pressure and the preset pressure and the pressure error change rate;

[0034] S234, a portion of the ozone gas inside the ozone reactor oxidizes the primary wastewater and generates hydroxyl radicals;

[0035] S235. Adaptively control the operating power of the ozone generating device using the pressure error and the pressure error change rate.

[0036] Furthermore, the oxidation gas is introduced into the secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detect and record the algae cake data. After the reaction is completed, the secondary wastewater and the algae cake are outputted separately, which includes the following steps:

[0037] S31, transporting the algae residue to a crusher for crushing to obtain algae mud;

[0038] S32, transporting the algae mud to a dehydration reactor, and adding an appropriate amount of a secondary flocculant to the dehydration reactor according to a linear relationship between the dehydration rate and the secondary flocculant;

[0039] S33, keeping the dehydration reactor sealed and introducing an oxidizing gas therein;

[0040] S34, after the reaction is completed, the mixture inside the dehydration reactor is dehydrated by using a box-type filter press device to output the solid algae cake and the liquid secondary wastewater respectively;

[0041] S35, discharging the algae cake inside the dehydration reactor and testing the moisture content.

[0042] Furthermore, the secondary flocculant is polyaluminium chloride.

[0043] Furthermore, the conversion liquid and the secondary wastewater are input into the purification reaction unit together, the water body is purified by hydroxyl radicals and filtered, and the algae-free water body and waste residue are discharged separately, including the following steps:

[0044] S41, inputting the conversion liquid containing hydroxyl radicals and the secondary wastewater into a purification reactor, and purifying the pollutants by using hydroxyl radicals;

[0045] S42. The purified sewage is input into the filtering device for solid-liquid separation, the solid waste residue is screened out, and the algae-free water body free of pollutants is discharged.

[0046] According to another aspect of the present invention, there is also provided a wastewater treatment system based on separation of hydroxyl from water body cyanobacteria, the system comprising the following components: a water body extraction unit, a primary dehydration reaction unit, a secondary dehydration reaction unit, an ozone reaction unit, a purification reaction unit and a gas transport unit;

[0047] Among them, the water extraction unit is used to extract water bodies containing cyanobacteria in natural waters;

[0048] A primary dehydration reaction unit is used for primary dehydration and separation of water bodies containing cyanobacteria;

[0049] A secondary dehydration reaction unit is used for secondary dehydration and separation of algae residue;

[0050] an ozone reaction unit for oxidizing the primary wastewater and providing oxidizing gas;

[0051] Purification reaction unit, used for purifying secondary wastewater and filtering waste residue;

[0052] The gas transfer unit is used to extract and supply the oxidizing gas.

[0053] The beneficial effects of the present invention are as follows: by constructing a complete water extraction, flow and discharge system, it is possible to realize the automated management of blue-green algae-containing water bodies in polluted waters, realize the intelligent and normalized pollution management, thereby achieving effective protection of lakes and freshwater resources, and maximizing the killing and purification of blue-green algae, harmful substances and various pollutants, and having strong efficiency, economy and safety.

[0054] Through two-stage dehydration and separation and two-stage purification and sterilization of water bodies containing cyanobacteria, and the use of microbubble technology to enhance the ozone mass transfer effect and the generated hydroxyl free radicals, the killing efficiency and quality of cyanobacteria and harmful microorganisms in water bodies can be significantly improved, and the efficient separation of cyanobacteria in water bodies can be achieved, thus possessing green and environmentally friendly technical advantages; in addition, through adaptive fuzzy control technology, the flexibility and accuracy of the system can be effectively improved, ensuring that the system is always in the most effective operating state and exerting an efficient wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 is a flow chart of a wastewater treatment method based on separation of hydroxyl groups by cyanobacteria in water according to an embodiment of the present invention;

[0057] Figure 2 The system block diagram of a wastewater treatment system based on separation of hydroxyl groups by cyanobacteria in water according to an embodiment of the present invention.

[0058] In the figure:

[0059] 1. Water extraction unit; 2. Primary dehydration reaction unit; 3. Secondary dehydration reaction unit; 4. Ozone reaction unit; 5. Purification reaction unit; 6. Gas transfer unit. DETAILED DESCRIPTION

[0060] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0061] According to one embodiment of the present invention, a wastewater treatment method based on separation of hydroxyl from water body cyanobacteria is provided. The present invention is further described in conjunction with the accompanying drawings and specific embodiments. Figure 1 As shown, the method comprises the following steps:

[0062] S1. Perform primary dehydration treatment on the water body containing cyanobacteria by using the primary dehydration reaction unit and monitor and record the dehydration data in real time, and output the primary wastewater and algae residue respectively after the treatment is completed;

[0063] The primary dehydration unit is connected with the water extraction unit to realize the extraction of the cyanobacteria-containing water. The primary dehydration unit includes an agitator, a centrifugal reactor, and a liquid flow meter and a valve arranged on the pipeline, which are respectively used for flow measurement of the cyanobacteria-containing water, and stirring, mixing and centrifugal separation of the cyanobacteria-containing water and the flocculant, so as to realize the solid-liquid separation of the primary wastewater and the algae residue.

[0064] The method of using the primary dehydration reaction unit to perform primary dehydration treatment on the water body containing cyanobacteria and real-time monitoring and recording of dehydration data, and outputting primary wastewater and algae residue separately after the treatment, comprises the following steps:

[0065] S11, extracting the water containing blue algae in the water area to be treated into the agitator through a pump and a pumping pipe, and using a liquid flow meter to monitor the initial flow data in the extraction process in real time;

[0066] S12, according to the linear relationship between the initial flow data and the amount of flocculant added, periodically adding an appropriate amount of flocculant to the agitator and stirring and mixing to obtain a flocculent water body;

[0067] The flocculant is a ferrate composite flocculant;

[0068] S13, inputting the flocculent water into a centrifugal reactor, and after the inputting is completed, weighing the weight of the flocculent water in the container and calibrating it as the initial mass;

[0069] S14, driving the centrifugal reactor to operate to achieve solid-liquid separation of the flocculent water body, and finally outputting liquid phase primary wastewater and solid phase algae residue, and weighing the mass of the algae residue and recording it as the mass of the algae residue.

[0070] The dehydration data includes initial flow data, flocculant addition amount and dehydration rate;

[0071] Wherein, the calculation formula of the dehydration rate is:

[0072] ;

[0073] In the formula, T Indicates the dehydration rate;

[0074] m 1 represents the initial mass;

[0075] m 2 Indicates the quality of algal residue.

[0076] S2, using the dehydration data as a control parameter to adaptively adjust the ozone reaction unit, to achieve oxidation treatment and gas phase separation of the primary wastewater, and to output oxidation gas and conversion liquid respectively;

[0077] The ozone reaction unit is used to oxidize primary wastewater with ozone, and in the process, a large number of hydroxyl free radicals are produced to kill algae and harmful substances in the water body. The ozone reaction unit includes an ozone generator, a gas-liquid mixing pump, an ozone reactor and its internal pressure sensors, thermometers, pH meters and other sensors to achieve real-time monitoring of the environment inside the ozone reactor.

[0078] Among them, the gas-liquid mixing pump is located at the bottom of the ozone reactor. By mixing and transporting the gas and liquid, it supplies the inside of the ozone reactor in the form of microbubbles to ensure the contact and reaction effect between the gas and liquid, and promote the generation of hydroxyl free radicals.

[0079] The process of using the dehydration data as a control parameter to adaptively adjust the ozone reaction unit to achieve oxidation treatment and gas phase separation of the primary wastewater and outputting oxidation gas and conversion liquid respectively includes the following steps:

[0080] S21, using the dehydration data as a control parameter to input and control the initial power of the ozone generator and the gas-liquid mixing pump;

[0081] S22, the ozone gas generated by the ozone generator and the primary wastewater are mixed together through the gas-liquid mixing pump until entering the ozone reactor;

[0082] S23, real-time monitoring and adaptive control of the internal environment of the ozone reactor, oxidation treatment of the primary wastewater, including the following steps:

[0083] S231, real-time monitoring of the internal temperature of the ozone reactor, and controlling the temperature between 35-40° C.;

[0084] S232, monitoring the pH value inside the ozone reactor in real time, and controlling the pH value to be between 7.5 and 9.5 by adding a pH regulator to the ozone reactor;

[0085] S233, monitoring the internal pressure of the ozone reactor in real time, and calculating the pressure error between the pressure and the preset pressure and the pressure error change rate;

[0086] S234, a portion of the ozone gas in the ozone reactor oxidizes the primary wastewater and generates hydroxyl radicals;

[0087] S235. Adaptively control the operating power of the ozone generating device using the pressure error and the pressure error change rate.

[0088] S24, using a vacuum pump to extract the gas inside the ozone reactor in real time as an oxidizing gas, and using a pipeline to discharge the mixed liquid after the reaction as a conversion liquid.

[0089] S3, passing the oxidizing gas into the secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detecting and recording algae cake data, and outputting secondary wastewater and algae cake respectively after the reaction is completed;

[0090] The secondary dehydration reaction unit includes a crusher, a dehydration reactor, a box-type filter press and related pipelines and valves, which can ensure the sealing performance during the pressurization process, and deeply crush and filter the algae residue to ensure the water content of the algae cake.

[0091] The steps of passing the oxidizing gas into the secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detecting and recording the algae cake data, and outputting the secondary wastewater and the algae cake separately after the reaction is completed include the following steps:

[0092] S31, transporting the algae residue to a crusher for crushing to obtain algae mud;

[0093] S32, transporting the algae mud to a dehydration reactor, and adding an appropriate amount of a secondary flocculant to the dehydration reactor according to a linear relationship between the dehydration rate and the secondary flocculant;

[0094] Wherein, the secondary flocculant is polyaluminium chloride.

[0095] S33, keeping the dehydration reactor sealed and introducing the oxidizing gas into the reactor;

[0096] S34, after the reaction is completed, dehydrating the mixture inside the dehydration reactor using a box-type filter press device, and outputting solid algae cake and liquid secondary wastewater respectively;

[0097] S35, discharging the algae cake from the dehydration reactor and testing its moisture content.

[0098] S4, inputting the conversion liquid and the secondary wastewater into a purification reaction unit, using hydroxyl radicals to purify the water body and filtering it, and discharging algae-free water and waste residue respectively;

[0099] The purification reaction unit includes a purification reactor, a solid-liquid separation device and related pipelines and valves to achieve the final sterilization, disinfection and filtration separation of sewage and wastewater, thereby improving the treatment effect of water bodies.

[0100] The conversion liquid and the secondary wastewater are input into the purification reaction unit together, the water body is purified by hydroxyl radicals and filtered, and the algae-free water body and waste residue are discharged separately, including the following steps:

[0101] S41, inputting the conversion liquid containing hydroxyl radicals and the secondary wastewater into a purification reactor, and purifying pollutants using the hydroxyl radicals;

[0102] S42. The purified sewage is input into the filtering device for solid-liquid separation, the solid waste residue is screened out, and the algae-free water body free of pollutants is discharged.

[0103] According to another embodiment of the present invention, Figure 2 As shown, a wastewater treatment system based on separation of hydroxyl from water body cyanobacteria is also provided, the system comprises the following components: a water body extraction unit 1, a primary dehydration reaction unit 2, a secondary dehydration reaction unit 3, an ozone reaction unit 4, a purification reaction unit 5 and a gas transport unit 6;

[0104] The water extraction unit 1 is used to extract water containing blue algae in natural waters;

[0105] The primary dehydration reaction unit 2 is used to perform primary dehydration and separation on the cyanobacteria-containing water body;

[0106] The secondary dehydration reaction unit 3 is used for secondary dehydration and separation of the algae residue;

[0107] The ozone reaction unit 4 is used to oxidize the primary wastewater and provide oxidizing gas;

[0108] The purification reaction unit 5 is used to purify the secondary wastewater and filter the waste residue;

[0109] The gas transfer unit 6 is used to extract and supply the oxidizing gas.

[0110] Among them, the water extraction unit 1 is connected with the primary dehydration reaction unit 2 and extracts and transports water containing cyanobacteria. The primary dehydration reaction unit 2 is connected with the secondary dehydration reaction unit 3 and the ozone reaction unit 4 respectively. The primary dehydration reaction unit 2 transports algae residue to the secondary dehydration reaction unit 3. The primary dehydration reaction unit 2 transports primary wastewater and related control parameters to the ozone reaction unit 4 to realize the operation control of the ozone reaction unit 4. The ozone reaction unit 4 is connected with the secondary dehydration reaction unit 3 through the gas transport unit 6 to transport oxidizing gas containing ozone, and the ozone reaction unit 4 is connected with the purification reaction unit 5 to transport the conversion liquid containing hydroxyl radicals, and the secondary dehydration reaction unit 3 is connected with the purification reaction unit 5 to transport secondary wastewater to realize the final purification and filtration.

[0111] To sum up, with the help of the above-mentioned technical scheme of the present invention, by constructing a complete water extraction, flow and discharge system, it is possible to realize the automated management of blue-green algae-containing water bodies in polluted waters, realize the intelligent and normalized pollution management, thereby realizing the effective protection of lakes and freshwater resources, and maximizing the killing and purification of blue-green algae, harmful substances and various pollutants, and having strong efficiency, economy and safety.

[0112] Through two-stage dehydration and separation and two-stage purification and sterilization of water bodies containing cyanobacteria, and the use of microbubble technology to enhance the ozone mass transfer effect and the generated hydroxyl free radicals, the killing efficiency and quality of cyanobacteria and harmful microorganisms in water bodies can be significantly improved, and the efficient separation of cyanobacteria in water bodies can be achieved, thus possessing green and environmentally friendly technical advantages; in addition, through adaptive fuzzy control technology, the flexibility and accuracy of the system can be effectively improved, ensuring that the system is always in the most effective operating state and exerting an efficient wastewater treatment effect.

[0113] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater treatment method based on separation of hydroxyl groups from water cyanobacteria, characterized in that: The method comprises the following steps: S1. Perform primary dehydration treatment on the water body containing cyanobacteria by using the primary dehydration reaction unit and monitor and record the dehydration data in real time, and output the primary wastewater and algae residue respectively after the treatment is completed; S2, using the dehydration data as a control parameter to adaptively adjust the ozone reaction unit, to achieve oxidation treatment and gas phase separation of the primary wastewater, and to output oxidation gas and conversion liquid respectively; S3, passing the oxidizing gas into the secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detecting and recording algae cake data, and outputting secondary wastewater and algae cake respectively after the reaction is completed; S4, inputting the conversion liquid and the secondary wastewater into a purification reaction unit, using hydroxyl radicals to purify the water body and filtering it, and discharging algae-free water and waste residue respectively; The method of using the primary dehydration reaction unit to perform primary dehydration treatment on the water body containing cyanobacteria and real-time monitoring and recording of dehydration data, and outputting primary wastewater and algae residue separately after the treatment is completed, comprises the following steps: S11, extracting the water containing blue algae in the water area to be treated into the agitator through a pump and a pumping pipe, and using a liquid flow meter to monitor the initial flow data in the extraction process in real time; S12, according to the linear relationship between the initial flow data and the amount of flocculant added, periodically adding an appropriate amount of flocculant to the agitator and stirring and mixing to obtain a flocculent water body; S13, inputting the flocculent water into a centrifugal reactor, and after the inputting is completed, weighing the weight of the flocculent water in the container and calibrating it as the initial mass; S14, driving the centrifugal reactor to operate to achieve solid-liquid separation of the flocculent water body, and finally outputting liquid phase primary wastewater and solid phase algae residue, and weighing the mass of the algae residue and recording it as the mass of the algae residue; The flocculant is a ferrate composite flocculant, and the dehydration data includes initial flow data, flocculant addition amount and dehydration rate; Wherein, the calculation formula of the dehydration rate is: ； In the formula, T Indicates the dehydration rate; m 1 represents the initial mass; m 2 Indicates the quality of algal residue; Using the dehydration data as a control parameter to adaptively adjust the ozone reaction unit to achieve oxidation treatment and gas phase separation of the primary wastewater, and outputting oxidation gas and conversion liquid respectively includes the following steps: S21, using the dehydration data as a control parameter to input and control the initial power of the ozone generator and the gas-liquid mixing pump; S22, the ozone gas generated by the ozone generator and the primary wastewater are mixed together through the gas-liquid mixing pump until entering the ozone reactor; S23, real-time monitoring and adaptive control of the internal environment of the ozone reactor, and oxidation treatment of the primary wastewater; S24, using a vacuum pump to extract the gas inside the ozone reactor in real time as an oxidizing gas, and using a pipeline to discharge the mixed liquid after the reaction as a conversion liquid; The internal environment of the ozone reactor is monitored in real time and adaptively controlled, and the oxidation treatment of the primary wastewater comprises the following steps: S231, real-time monitoring of the internal temperature of the ozone reactor, and controlling the temperature between 35-40° C.; S232, monitoring the pH value inside the ozone reactor in real time, and controlling the pH value to be between 7.5 and 9.5 by adding a pH regulator to the ozone reactor; S233, monitoring the internal pressure of the ozone reactor in real time, and calculating the pressure error between the pressure and the preset pressure and the pressure error change rate; S234, a portion of the ozone gas in the ozone reactor oxidizes the primary wastewater and generates hydroxyl radicals; S235, adaptively controlling the operating power of the ozone generating device by using the pressure error and the pressure error change rate; The oxidizing gas is introduced into the secondary dehydration reaction unit to perform pressurized dehydration treatment on the algae residue and detect and record the algae cake data, and after the reaction is completed, the secondary wastewater and the algae cake are outputted separately, which includes the following steps: S31, transporting the algae residue to a crusher for crushing to obtain algae mud; S32, transporting the algae mud to a dehydration reactor, and adding an appropriate amount of a secondary flocculant to the dehydration reactor according to a linear relationship between the dehydration rate and the secondary flocculant; S33, keeping the dehydration reactor sealed and introducing the oxidizing gas into the reactor; S34, after the reaction is completed, dehydrating the mixture inside the dehydration reactor using a box-type filter press device, and outputting solid algae cake and liquid secondary wastewater respectively; S35, discharging the algae cake from the dehydration reactor and testing its moisture content; The secondary flocculant is polyaluminium chloride; The conversion liquid and the secondary wastewater are input into the purification reaction unit together, and the water body is purified by hydroxyl radicals and filtered to discharge the algae-free water body and waste residue separately, which includes the following steps: S41, inputting the conversion liquid containing hydroxyl radicals and the secondary wastewater into a purification reactor, and purifying pollutants using the hydroxyl radicals; S42. The purified sewage is input into the filtering device for solid-liquid separation, the solid waste residue is screened out, and the algae-free water body free of pollutants is discharged.

2. A wastewater treatment system based on separation of hydroxyl groups from cyanobacteria in water, used to implement the wastewater treatment method based on separation of hydroxyl groups from cyanobacteria in water as described in claim 1, characterized in that: The system includes the following components: a water extraction unit, a primary dehydration reaction unit, a secondary dehydration reaction unit, an ozone reaction unit, a purification reaction unit and a gas transport unit; Wherein, the water extraction unit is used to extract water containing cyanobacteria in natural waters; The primary dehydration reaction unit is used to perform primary dehydration and separation on the cyanobacteria-containing water body; The secondary dehydration reaction unit is used to perform secondary dehydration and separation on the algae residue; The ozone reaction unit is used to oxidize the primary wastewater and provide oxidizing gas; The purification reaction unit is used to purify the secondary wastewater and filter the waste residue; The gas transfer unit is used to realize the extraction and supply of the oxidizing gas.

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