CN107162098B - Method for removing spirulina in water - Google Patents
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- CN107162098B CN107162098B CN201710436449.6A CN201710436449A CN107162098B CN 107162098 B CN107162098 B CN 107162098B CN 201710436449 A CN201710436449 A CN 201710436449A CN 107162098 B CN107162098 B CN 107162098B
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Abstract
Discloses a method for removing anabaena spirulina in water and a treatment device thereof. The method for removing the anabaena spirulina in the water comprises the steps of putting the water with the anabaena spirulina into a reaction vessel; h with concentration of 5-15mmol/L2O2The solution is added to a reaction vessel and used at 50-100. mu.W/cm2The reaction vessel is irradiated by the UV light and stirred in the reaction vessel for 1 to 5 minutes by a stirring device at the rotating speed of 500-800 r/min; adding salicylic acid into a reaction vessel to generate 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, calibrating the content of hydroxyl radicals by measuring the content of the 2, 3-dihydroxybenzoic acid and the 2, 5-dihydroxybenzoic acid, and measuring the content of dimethyl isoborneol (2-MIB); adjusting H based on the hydroxyl radical content2O2The adding amount of the solution and/or the illumination intensity of the UV light, and the stirring device is stirred in the reaction vessel at the rotating speed of 300-500r/min until the content of the dimethyl isoborneol (2-MIB) is reduced to a preset range.
Description
Technical Field
The invention relates to the field of water treatment, in particular to a method for removing anabaena spirulina in water and a treatment device thereof.
Background
The water quality monitoring conditions of 967 surface waters in China are 2.8% of those meeting the requirements of I-class water quality, 31.4% of II-class water quality, 30.3% of III-class water quality, 21.1% of IV-class water quality, 5.6% of V-class water quality and 8.8% of inferior V-class water quality, wherein the main pollutants are organic pollutants. The nutrition states of 61 lakes (reservoirs) are 2 medium eutrophications, 12 light eutrophications, 41 medium nutritions and 6 poor nutrients. Therefore, although the improvement is made in the last years, the eutrophication state of the water body still exists, in summer, the dissolved oxygen in the water is reduced, aquatic organisms die, in addition, the temperature in summer is increased, the organic matters in the water body and the bottom mud of the lake are accelerated to decay, the risk of water body eutrophication is increased, and a plurality of lakes and water bodies with medium nutrition are easily converted into eutrophic lakes in summer.
The harm of water eutrophication is to cause a great deal of proliferation and outbreak of algae, on one hand, the oxygen content in the water is reduced, on the other hand, death and metabolism of water bloom algae, especially of anabaena spirulina, can generate smelly substances and algal toxins, and the current research on the smelly substances can not cause great influence on human bodies, but can cause a great deal of complaints of residents, increase the public concerns and maintenance cost of water plants, meanwhile, water with bad smell is generally considered to be toxic or harmful to deteriorate by people, the residents can dilute the smell by a great amount of discharged water, but the smell threshold of the smelly substances is very low, reaches about 30ng/L and is difficult to remove, so that the waste of water resources is brought, and the pressure of urban pipe networks is increased. Compared with the lake reservoirs which are effectively managed and monitored, the urban landscape water body is small in water body and severe in temperature change, and urban rainwater is directly discharged into the urban landscape water body due to the fact that the urban landscape water body is close to the living distance of human beings in cities, so that the water quality is easily in an eutrophication state in a short time, water bloom is generated, urban landscape is affected, and the generated odor can also affect the life of surrounding residents. The outbreak of the bloom is considered to be mainly due to the N/P ratio and inorganic nutrients in the water body, so the center of gravity for treating the eutrophication of the water body is mainly focused on the treatment of inorganic pollutants in the water body, and the attention on organic pollutants is low. The mere control of inorganic contaminants does not completely prevent the occurrence of water bloom.
The prior art treatment method is as follows.
A pre-chlorination method: the pre-chlorination method is a method of the traditional water treatment process, and is also the most widely used method with the mature process at present, and the method comprises the methods of adding liquid chlorine and introducing chlorine gas and the like, and the principle of the method is that chlorine is dissolved in water and reacts with water to generate hydrogen chloride and hypochlorous acid, the hypochlorous acid is decomposed into hydrogen ions and hypochlorite radicals to destroy cell membranes of algae, cell structures are destroyed in a short time, normal metabolism in the body is destroyed, and the effect of killing the algae is achieved, but the reaction corrodes pipelines, the maintenance and updating capital construction cost is high, odor substances generated by death of the algae, such as 2-MIB, GSM and the like, cannot be removed, the effect of treating DOC in water is avoided, and disinfection byproducts such as trichloromethane, which are strong carcinogens, are not very safe to use.
The copper sulfate algae removal method comprises the following steps: copper sulfate and copper sulfate are widely applied in algae treatment, and are characterized by less material consumption and low cost, the action principle is that copper ions are combined with proteins in algae bodies and on membranes to denature and precipitate the copper ions, and meanwhile, the algae has a special adsorption effect on the copper ions, which is why other heavy metal ions are not used. However, copper ions also have a harmful effect on human bodies, so that the method cannot be used in the same place for a long time.
An ozone method: the content of hydroxyl free radicals in water is increased by utilizing the strong oxidizing property of ozone, and the ozone and the hydroxyl free radicals attack algae cells together to break the cell walls of the algae cells and influence the photosynthesis of the algae cells. However, ozone also damages the staff in the water plant, and can oxidize the respiratory system and skin of the inspection tour staff.
An ultrasonic method: the principle of the ultrasonic method is that a large amount of hydroxyl radicals are generated in water by utilizing ultrasonic waves, so that cell walls of algae are oxidized, the normal physiological process of the algae is damaged, and meanwhile, the ultrasonic waves are not blocked by the cell walls of the algae, so that organelles of the algae can be influenced before membrane rupture, and the physiological process of the algae can be influenced. But the sound source problem of the ultrasonic method is difficult to solve, and meanwhile, the ultrasonic is not easy to be isolated, and the access maintenance personnel are very easy to be injured by the ultrasonic.
UV method: when the UVC intensity is high, the cells are significantly damaged, while when the UVC intensity is low, the attack on the algal cells is mainly raised above the damage to DNA. The mechanism of UVC inactivation mainly includes photodegradation and advanced oxidation.
Potassium permanganate: the potassium permanganate not only has the effect of destroying the structure of algae cells by utilizing the oxidation performance of the potassium permanganate but also has the effect of coagulating sedimentation on the algae cells. Petrusersk et al found that hydrated manganese dioxide is concentrated on their cell walls by algae by scanning electron microscopy, and that the specific gravity of algae cells becomes large and the algae cells settle more easily, and that the adsorption action makes the flocs longer and larger, and the algae cells which are not easy to settle become easy to settle and easier to remove in the subsequent water treatment process. The physical method of the air floatation algae removal method is small in algae particles, the density of the algae particles is close to that of water and is slightly larger than that of the water, the algae particles are difficult to remove by a precipitation method, and the algae particles can be well removed by an air floatation method, but the air floatation method has many defects, for example, air floatation can scatter a large amount of odor substances, hydrogen sulfide, ammonia and the like in sewage, so that the personnel working at the edge of an air floatation tank are greatly injured, the removed algae are not dead, secondary pollution is easy to cause if residual waste residues are not well treated, the air floatation method also has the defects of complex process and expensive infrastructure and maintenance, and therefore, the air floatation method is not very convenient to use.
Patent document 3 discloses a method for removing algae in water using an ultraviolet light activated oxidizing agent, which comprises the steps of: adding oxidant solution into water containing algae, reacting under ultraviolet irradiation, and analyzing to obtain algae activity, residual chlorophyll and algae metabolite values to determine the degree of algae removal in water. Under the irradiation of ultraviolet light, the method only needs to put a reagent into a water body needing algae removal and odor degradation, but the method has insufficient removal effect, long treatment time and can not automatically and accurately control the removal process.
Documents of the prior art
Patent document
Patent document 1: chinese patent publication No. CN 102515432A
Patent document 2: chinese patent publication No. CN 103523900A
Patent document 3: chinese patent publication No. CN 105060392A
Disclosure of Invention
Problems to be solved by the invention
In water eutrophication hazards, the spirulina is an important hazard source to form water bloom, and a method and a device for removing the spirulina in water, which have no side effect, excellent algae removal effect and short removal time aiming at the spirulina and automatically and accurately control the algae removal process, are urgently needed in the field.
Means for solving the problems
The present inventors have conducted intensive studies to achieve the above object, and specifically, in a first aspect of the present invention, there is provided a method for removing anabaena spirulina in water, comprising the steps of:
in a first step: putting water with Spirulina into a reaction vessel, wherein the density of Spirulina is 1.8 × 107-2×107cell/L。
In a second step: h with concentration of 5-15mmol/L2O2The solution is added to a reaction vessel and used at 50-100. mu.W/cm2The reaction vessel is irradiated with UV light and stirred in the reaction vessel by a stirring device at a rotational speed of 500-800r/min for 1 to 5 minutes.
In a third step: salicylic acid is added into a reaction vessel to generate 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, the hydroxyl radical content is calibrated by measuring the contents of the 2, 3-dihydroxybenzoic acid and the 2, 5-dihydroxybenzoic acid, and the content of dimethyl isoborneol (2-MIB) is measured.
In the fourth step: adjusting H based on the hydroxyl radical content2O2The adding amount of the solution and/or the illumination intensity of the UV light, and the stirring device is stirred in the reaction vessel at the rotating speed of 300-500r/min until the content of the dimethyl isoborneol (2-MIB) is reduced to a preset range.
In the method for removing the anabaena spirulina in the water, the second step is as follows: h with a concentration of 10mmol/L2O2The solution was added to the reaction vessel and used at 81.4. mu.W/cm2The reaction vessel was irradiated with UV light and stirred in the reaction vessel for 3 minutes by means of a stirring apparatus at a rotational speed of 500-800 r/min.
In the method for removing the anabaena spirulina in the water, in the third step: the reaction vessel is provided with a detection area for containing a solution to be detected, salicylic acid is added into the solution to be detected to generate 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, the content of the 2, 3-dihydroxybenzoic acid and the 2, 5-dihydroxybenzoic acid is measured to calibrate the content of hydroxyl radicals, and the content of dimethyl isoborneol (2-MIB) is measured.
In the method for removing the anabaena spirulina in the water, in the third step: the content of dimethyl isoborneol (2-MIB) is measured by adopting a gas chromatography-mass spectrometer.
In the method for removing the anabaena spirulina in the water, in the third step: the solution in the reaction vessel was scanned using an ultraviolet spectrophotometer to obtain the number of algal cells instead of measuring the content of dimethyl isoborneol (2-MIB).
In the fourth step: adjusting H based on the hydroxyl radical content2O2The amount of solution added and/or the intensity of the UV light is then stirred by the stirring device in the reaction vessel at a speed of 300-500r/min until the number of algal cells is reduced to a predetermined range.
In the method for removing the anabaena in water, UV light is generated by an ultraviolet shadowless glue curing lamp capable of adjusting the illumination intensity, and the stirring device is a magnetic heating stirrer capable of adjusting the stirring speed.
In another aspect of the present invention, a processing apparatus for performing the method for removing anabaena spirulina in water comprises a reaction vessel for removing anabaena spirulina in water, a UV generator for irradiating a solution in the reaction vessel, and a controller, wherein the reaction vessel is provided with a means for adding H2O2The liquid filling opening of the solution, the stirring device for stirring the solution in the reaction container and the detection part for detecting the content of the hydroxyl radicals and the content of the dimethyl isoborneol, the UV sensor for measuring the illumination intensity of the UV generator, the speed sensor for measuring the stirring speed of the stirring device and the detection part are connected with the controller, and the controller adjusts H based on the detected content of the hydroxyl radicals2O2The adding amount of the solution, the illumination intensity of UV light and/or the stirring speed of a stirring device, and when the content of the dimethyl isoborneol (2-MIB) is reduced to a preset range, the stirring device stops stirring.
In the treatment device, the treatment device is provided with a pretreatment device for adjusting the density of the anabaena spirulina in water, and the liquid adding port is provided with an adjusting valve for controlling the adding amount.
In the processing device, the UV generator is an ultraviolet shadowless glue curing lamp capable of adjusting the illumination intensity, and the detection part comprises an inlet for adding salicylic acid, a liquid chromatograph for measuring the contents of 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid and a gas chromatograph-mass spectrometer for measuring the content of dimethyl isoborneol (2-MIB).
In the processing device, the controller is a general processor, a digital signal processor, an application specific integrated circuit ASIC or a field programmable gate array FPGA, and the controller includes a memory, and the memory includes at least one of a flash memory, a hard disk memory, a multi-media card micro-strip memory, a card memory, a random access memory, a read only memory, an electrically erasable programmable ROM or a usb disk.
ADVANTAGEOUS EFFECTS OF INVENTION
The method for removing the anabaena spirulina in the water can obviously improve the removal effect of the anabaena spirulina, the removal rate of the 2-MIB reaches 90-95%, the removal speed characteristic is excellent, most of the anabaena spirulina can be removed within the first 5 minutes, and in addition, the removal process is automatic and accurate. The inventors adjusted H by hydroxyl radical content and measuring dimethyl isoborneol (2-MIB) content2O2The method is characterized in that the effect of removing the anabaena is further improved by the adding amount of the solution and/or the illumination intensity of UV light, the stirring device is controlled to stir in the reaction vessel at the rotating speed of 300-2O2The amount of solution added and the intensity of the UV light are of great significance.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly apparent, and to make the implementation of the content of the description possible for those skilled in the art, and to make the above and other objects, features and advantages of the present invention more obvious, the following description is given by way of example of the specific embodiments of the present invention.
Drawings
FIG. 1 is a schematic view showing the steps of the method for removing Spirulina from water according to the present invention.
FIG. 2 is a graph showing the relationship among the hydroxyl radical generation rate, the total degradation rate of MIB and the degradation rate of extracellular MIB in the method for removing anabaena spirulina in water according to the present invention.
[ FIG. 3 ]]Shows that the method for removing the anabaena spirulina in the water is H with the concentration of 10mmol/L2O2Solution and 81.4. mu.W/cm2Under UV light irradiation, the total MIB content and the intracellular MIB content are shown in the graph.
FIG. 4 shows a schematic view of the structure of the treating apparatus of the present invention.
Description of the symbols
1 reaction vessel
2 UV generator
3 controller
4 liquid filling opening
5 stirring device
6 detection part
Detailed Description
Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While specific embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
It should be noted that certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, various names may be used to refer to a component. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.
For the purpose of facilitating an understanding of the embodiments of the present invention, the following description will be made in terms of several specific embodiments with reference to the accompanying drawings, and the drawings are not intended to limit the embodiments of the present invention.
Specifically, as shown in fig. 1, the steps of the method for removing anabaena spirulina in water according to the present invention are schematically illustrated, and the steps of the method for removing anabaena spirulina in water include:
in a first step S1: putting water with Spirulina into a reaction vessel, wherein the density of Spirulina is 1.8 × 107-2×107cell/L。
In a second step S2: h with concentration of 5-15mmol/L2O2The solution is added to a reaction vessel and used at 50-100. mu.W/cm2The reaction vessel is irradiated with UV light and stirred in the reaction vessel by a stirring device at a rotational speed of 500-800r/min for 1 to 5 minutes.
In a third step S3: salicylic acid is added into a reaction vessel to generate 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, the hydroxyl radical content is calibrated by measuring the contents of the 2, 3-dihydroxybenzoic acid and the 2, 5-dihydroxybenzoic acid, and the content of dimethyl isoborneol (2-MIB) is measured.
In the fourth step S4: adjusting H based on the hydroxyl radical content2O2The adding amount of the solution and/or the illumination intensity of the UV light, and the stirring device is stirred in the reaction vessel at the rotating speed of 300-500r/min until the content of the dimethyl isoborneol (2-MIB) is reduced to a preset range.
In the present invention, the inventors have studied and found that H is present at a certain concentration2O2The solution and UV light irradiation can remarkably promote the cell destruction of the anabaena spirulina and the generation of the spirulinaTreatment of smelly substances, anabaena spirulina in H2O2The solution and UV light irradiation treatment generate hydroxyl free radical, the hydroxyl free radical has strong reaction to almost all organic matters, hydrogen abstraction reaction occurs, hydrogen on the organic matters is abstracted by the hydroxyl free radical to generate water, a residual functional group is left, or electrophilic addition reaction occurs, the whole hydroxyl free radical is added to the molecule of the organic matters to inactivate the organic matters, electron transfer reaction is possible, the reactions can not only rapidly break the cell wall of the algae, but also can well treat 2-MIB, and the metabolite is basically water. Based on the characteristics of hydroxyl free radicals, H is further researched2O2The concentration of the solution and the illumination intensity of UV light influence the reaction of the hydroxyl free radical and the spirulina to obtain the spirulina with the density of 1.8 multiplied by 107-2×107In the case of cell/L, the concentration of H is 5-15mmol/L2O2Solution and 50-100 muW/cm2The removal rate of 2-MIB is 90-95% by UV, the removal rate is excellent, most of the removal can be completed within the first 5 minutes, and in order to further improve the effect of removing the anabaena spirulina in the water and improve the automation and the accuracy of the removal method, the inventor adjusts H by the content of hydroxyl free radicals and the content of dimethyl isoborneol (2-MIB)2O2The method is characterized in that the effect of removing the anabaena is further improved by the adding amount of the solution and/or the illumination intensity of UV light, the stirring device is controlled to stir in the reaction vessel at the rotating speed of 300-2O2The amount of solution added and the intensity of the UV light are of great significance.
The relationship between the generation rate of hydroxyl radicals and the degradation rate of 2-MIB is tested, FIG. 2 is a schematic diagram of the relationship between the generation rate of hydroxyl radicals, the total degradation rate of MIB and the degradation rate of extracellular MIB, as shown in FIG. 2, UV irradiation enables the reaction of H2O2 to be kept in a state of high activity, so that the yield of hydroxyl radicals can be higher, and as can be seen from FIG. 2, the generation rate of hydroxyl radicals reaches a peak value in 3min, meanwhile, the degradation rate of 2-MIB also reaches a peak value, and a second peak caused by cell membrane rupture does not appear later, so that the reaction can be carried out more completely in the initial stage of the reaction under the combined action of two conditions.
In a preferred embodiment of the method for removing anabaena spirulina from water according to the present invention, in the second step S2: h with a concentration of 10mmol/L2O2The solution was added to the reaction vessel and used at 81.4. mu.W/cm2The reaction vessel was irradiated with UV light and stirred in the reaction vessel for 3 minutes by means of a stirring apparatus at a rotational speed of 500-800 r/min. FIG. 3 shows the H concentration of 10mmol/L according to the present invention2O2Solution and 81.4. mu.W/cm2The total content of MIB and the content of intracellular MIB under the irradiation of UV light are shown in the figure, under the synergistic action of UV and H2O2, except for the moment that the content of MIB is different at the beginning of reaction, the cell wall of the algae is rapidly destroyed at the moment of 1min to 3min, the content of MIB in the water body is rapidly increased, and then free hydroxyl free radicals in the water are consumed. The final removal rate of the 2-MIB is 94.9%, which shows that the method obviously improves the removal effect of the anabaena spirulina in the water, has excellent removal speed characteristic, can quickly destroy cells of the anabaena spirulina in 3 minutes, can always control the reaction process of removing the anabaena spirulina based on the content of hydroxyl free radicals, and can complete the removal treatment more efficiently and more quickly.
In a preferred embodiment of the method for removing anabaena spirulina in water, the reaction container is provided with a detection area for containing a solution to be detected, salicylic acid is added into the solution to be detected to generate 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, the content of the 2, 3-dihydroxybenzoic acid and the 2, 5-dihydroxybenzoic acid is measured to calibrate the content of hydroxyl radicals, and the content of dimethyl isoborneol (2-MIB) is measured.
In a preferred embodiment of the method for removing anabaena spirulina from water according to the present invention, in the third step S3: the content of dimethyl isoborneol (2-MIB) is measured by adopting a gas chromatography-mass spectrometer.
In a preferred embodiment of the method for removing anabaena spirulina from water according to the present invention, in the third step S3: the solution in the reaction vessel was scanned using an ultraviolet spectrophotometer to obtain the number of algal cells instead of measuring the content of dimethyl isoborneol (2-MIB).
In the fourth step S4: adjusting H based on the hydroxyl radical content2O2The amount of solution added and/or the intensity of the UV light is then stirred by the stirring device in the reaction vessel at a speed of 300-500r/min until the number of algal cells is reduced to a predetermined range.
In the preferred embodiment of the method for removing the anabaena spirulina in the water, the UV light is generated by an ultraviolet shadowless curing lamp capable of adjusting the illumination intensity, and the stirring device is a magnetic heating stirrer capable of adjusting the stirring speed.
The invention also provides a processing device capable of accurately controlling the removal process of the anabaena spirulina in the water, which can more efficiently and accurately remove the anabaena spirulina with high automation degree and is suitable for large-scale industrial application. FIG. 4 is a schematic structural diagram of a treatment apparatus of the present invention, wherein the treatment apparatus for carrying out the method for removing the anabaena spirulina in water comprises a reaction vessel 1 for removing the anabaena spirulina in water, a UV generator 2 for irradiating a solution in the reaction vessel, and a controller 3, wherein the reaction vessel 1 is provided with a device for adding H2O2A liquid adding port 4 of the solution, a stirring device 5 for stirring the solution in the reaction vessel 1, a detection part 6 for detecting the content of the hydroxyl radical and the content of dimethyl isoborneol (2-MIB), a UV sensor for measuring the illumination intensity of the UV generator 2, a speed sensor for measuring the stirring speed of the stirring device 5 and the detection part 6 are connected with the controller 3, the controller 3 adjusts H based on the detected content of the hydroxyl radical2O2Amount of solution added, UV lightThe intensity of light and/or the stirring speed of the stirring device 5, and when the content of the dimethyl isoborneol (2-MIB) is reduced to a preset range, the stirring device 5 stops stirring.
The processing device can automatically remove the anabaena spirulina in the water, and adjusts H according to the content of the hydroxyl free radical detected by the detection part 62O2The addition amount of the solution, the illumination intensity of UV light and/or the stirring speed of the stirring device 5 are/is precisely controlled to control the removal process, so as to achieve the optimal removal effect, and the stirring time of the stirring device 5 is controlled by the content of the detected dimethyl isoborneol (2-MIB). The processing apparatus of the present invention is suitable for large-scale industrial use and commercial use.
In a preferred embodiment of the treatment device of the invention, the treatment device is provided with a pretreatment device for adjusting the density of the anabaena spirulina in water, and the liquid adding port 4 is provided with an adjusting valve for controlling the adding amount.
In a preferred embodiment of the processing apparatus of the present invention, the UV generator 2 is an ultraviolet shadowless curing lamp capable of adjusting the illumination intensity, and the detection part 6 includes an inlet for adding salicylic acid, a liquid chromatograph for measuring the contents of 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, and a gas chromatograph-mass spectrometer for measuring the content of dimethyl isoborneol (2-MIB).
In a preferred embodiment of the processing device of the present invention, the controller 3 is a general processor, a digital signal processor, an application specific integrated circuit ASIC, or a field programmable gate array FPGA, and the controller 3 includes a memory, and the memory includes at least one of a flash memory, a hard disk memory, a multi-media card micro-strip memory, a card memory, a random access memory, a read only memory, an electrically erasable programmable ROM, or a usb flash disk.
Industrial applicability
The method for removing the anabaena spirulina in the water and the treatment device thereof can be manufactured and used in the field of water treatment.
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments and application fields, and the above-described embodiments are illustrative, instructive, and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope of the invention as defined by the appended claims.
Claims (1)
1. A method for removing anabaena spirulina in water comprises the following steps:
in the first step (S1): putting water with Spirulina into a reaction vessel, wherein the density of Spirulina is 1.8 × 107-2×107cell/L；
In the second step (S2): h with a concentration of 10mmol/L2O2The solution was added to the reaction vessel and used at 81.4. mu.W/cm2The reaction vessel is irradiated by UV light, and is stirred in the reaction vessel for 3 minutes at the rotating speed of 500-800r/min by a stirring device, the stirring device is a magnetic heating stirrer with adjustable stirring speed, and the UV light is generated by an ultraviolet shadowless glue curing lamp with adjustable illumination intensity;
in the third step (S3): the reaction vessel is provided with a detection area for containing a solution to be detected, salicylic acid is added into the solution to be detected to generate 2, 3-dihydroxybenzoic acid and 2, 5-dihydroxybenzoic acid, the content of the 2, 3-dihydroxybenzoic acid and the content of the 2, 5-dihydroxybenzoic acid are measured to calibrate the content of hydroxyl radicals, and the content of dimethyl isoborneol (2-MIB) is measured, wherein the content of the dimethyl isoborneol (2-MIB) is measured by adopting a gas chromatography-mass spectrometer;
in the fourth step (S4): adjusting H based on the hydroxyl radical content2O2The adding amount of the solution and/or the illumination intensity of the UV light, and the stirring device is stirred in the reaction vessel at the rotating speed of 300-500r/min until the content of the dimethyl isoborneol (2-MIB) is reduced to a preset range.
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