CN209835728U - Natural flow water pollution treatment device based on electric flocculation and electro-Fenton and hydrogen storage - Google Patents
Natural flow water pollution treatment device based on electric flocculation and electro-Fenton and hydrogen storage Download PDFInfo
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Abstract
The utility model relates to a water pollution treatment device, in particular to a natural flow water pollution treatment device based on electric flocculation and electro-fenton and hydrogen storage, which comprises a device shell, an annular flow passage, a water inlet, a water outlet, a central cathode carbon rod, an annular anode I and an annular anode II, wherein the annular flow passage is arranged in the device shell, the upper end and the lower end of the annular flow passage are respectively communicated with the water inlet and the water outlet, the central cathode carbon rod is arranged at the central position of the device shell, the central cathode carbon rod is connected with the cathode of an electrode, the annular anode I is arranged in the device shell, the annular anode I is connected with the anode of the electrode, the annular anode II is arranged in the device shell, the annular anode II is connected with the anode of the electrode, the electrochemical method can be adopted to treat the flowing water in situ, the electric flocculation and electro-fenton technologies are coupled, an electrolytic cell device adopting the same cathode and, the purification quality of water is improved.
Description
Technical Field
The utility model relates to a water pollution treatment device, more specifically the natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen that says so.
Background
The existing sewage treatment technology can be divided into in-situ treatment and ex-situ treatment according to treatment positions, because many sewage treatment plants adopt the ex-situ treatment method to treat sewage, the detection of whether the sewage can be discharged back to the original river or not can increase the sewage treatment cost due to the conditions of pumping, transportation and sewage treatment, and the process is complicated; in the in-situ treatment technology, the traditional underground water treatment technology has a permeable reactive barrier technology, and pollutants are intercepted only when underground water penetrates through a wall body, so that PRB has a larger scale and the construction cost is increased; according to the analysis of data in the Chinese publication of ecological environment conditions, a plurality of rivers have composite pollution of heavy metal and organic matters, but the current biotechnology and physical adsorption technology can only solve the problem of single pollution; many technologies, such as biofilm technology and activated sludge process, are mostly suitable for stationary domestic sewage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a natural flow water pollution treatment device based on electric flocculation and electro-Fenton and store up hydrogen can adopt electrochemistry method normal position to handle mobile running water, carries out the coupling with electric flocculation and electro-Fenton technique, but the electrolytic bath device of adoption same negative and positive pole is the simultaneous processing organic matter and two kinds of pollutants of heavy metal, has improved the purification quality of water.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a natural flow water pollution processing apparatus based on electric flocculation and electro-fenton and hydrogen storage, includes device shell, annular flow way, water inlet, delivery port, central cathode carbon-point, annular anode I and annular anode II, be provided with annular flow way in the device shell, annular flow way's upper and lower both ends communicate respectively has water inlet and delivery port, and central cathode carbon-point sets up the central point at the device shell and puts, and central cathode carbon-point connects the negative pole of electrode, and annular anode I sets up in the device shell, and annular anode I is located annular flow way's upper end, and annular anode I connects the positive pole of electrode, and annular anode II sets up in the device shell, and annular anode II is located annular flow way's lower extreme, and annular anode II connects the positive pole of electrode.
As a further optimization of the technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-Fenton and store up hydrogen, the chemical reaction that the negative pole of center negative pole carbon-point connecting electrode produced in aqueous is 2H2O+2e-→2OH-+H2。
As a further optimization of this technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-Fenton and store up hydrogen, to letting in oxygen in the central negative pole carbon-point, the chemical reaction that central negative pole carbon-point took place with oxygen in aqueous is O2+2H++2e-→H2O2。
As the further optimization of this technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen, annular anode I is the foam iron, and annular anode II is the graphite paper.
As a further optimization of the technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-Fenton and store up hydrogen, the chemical reaction that annular anode I connecting electrode's positive pole produced in annular runner is Fe-2e-→Fe2+，Fe-3e-→Fe3+，Fe2++2H2O→Fe(OH)2+2H+，Fe3++3H2O→Fe(OH)3+3H+。
As a further optimization of the technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-Fenton and store up hydrogen, the chemical reaction that annular anode II connects the positive pole of electrode and produces in annular flow channel is Fe2++H2O2→Fe3++3OH-+·OH。
As a further optimization of the technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen, annular anode II's area is greater than annular anode I's area.
As the further optimization of the technical scheme, the utility model relates to a natural flow water body pollution treatment device based on electric flocculation and electro-Fenton and store up hydrogen, the annular flow channel is the spiral.
As a further optimization of this technical scheme, the utility model relates to a natural flow water pollution processing apparatus based on electric flocculation and electro-Fenton and store up hydrogen, natural flow water pollution processing apparatus based on electric flocculation and electro-Fenton and store up hydrogen still includes hydrogen collection device, and hydrogen collection device connects on the device shell, and hydrogen collection device is located the top of central negative pole carbon-point.
As the further optimization of this technical scheme, the utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen, be provided with the active carbon in the annular flow way.
The utility model relates to a natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen's beneficial effect does:
the utility model relates to a natural flow water body pollution treatment device based on electric flocculation and electro-Fenton and hydrogen storage, which can realize in-situ treatment by using an annular flow passage as a spiral to decelerate sewage and increase the sewage retention time; a central cathode carbon rod is arranged at the center of the device, and an annular anode I and an annular anode II are arranged at the periphery of the device, so that the problems of low conductivity and low current efficiency of a natural flowing water body are solved, and the current density of a cathode area is enhanced; the central cathode carbon rod, the annular anode I and the annular anode II are combined to realize an electro-flocculation-electro-Fenton combination principle, so that the combined removal of multiple pollutants is realized, heavy metal ions are removed in the electro-flocculation reaction process, and organic pollutants are removed in the electro-Fenton reaction process; aiming at the problem that the speed of the electric flocculation reaction is far higher than that of the electro-Fenton reaction, the system adopts an arrangement mode that the area of an annular anode I is small and the area of an annular anode II is large on the electrode arrangement to match the speed difference problem of the electric flocculation-electro-Fenton coupling; aiming at the problems of low concentration of pollutants in a natural flowing water body and long electro-Fenton removal time, the device takes 'adsorption first and then treatment' as a guiding principle, aims at adsorbing and enriching organic matters in an annular flow passage by active carbon, and then removes the organic matters by centralized electrolysis after a period of time; aiming at the problem that adsorption can not be continuously carried out after the activated carbon is saturated in adsorption, the device can realize activated carbon regeneration during electrolysis.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected or indirectly connected through an intermediate medium, and may be a communication between two components. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, the terms "plurality", and "a plurality" mean two or more unless otherwise specified.
FIG. 1 is a schematic view of the whole structure of the natural flow water pollution treatment device based on electric flocculation and electro-Fenton and hydrogen storage;
fig. 2 is a schematic diagram of the reaction principle of the natural flowing water pollution treatment device based on electric flocculation and electro-fenton and hydrogen storage.
In the figure: a device housing 1; an annular flow passage 2; a water inlet 3; a water outlet 4; a central cathode carbon rod 5; an annular anode I6; an annular anode II 7; and a hydrogen gas collecting device 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the embodiment is described below with reference to fig. 1-2, and a natural flow water body pollution treatment device based on electro-flocculation and electro-fenton and hydrogen storage comprises a device shell 1, an annular flow passage 2, a water inlet 3, a water outlet 4, a central cathode carbon rod 5, an annular anode I6 and an annular anode II7, an annular flow channel 2 is arranged in a device shell 1, the upper end and the lower end of the annular flow channel 2 are respectively communicated with a water inlet 3 and a water outlet 4, a central cathode carbon rod 5 is arranged at the central position of the device shell 1, the central cathode carbon rod 5 is connected with a cathode of an electrode, an annular anode I6 is arranged in the device shell 1, the annular anode I6 is positioned at the upper end of the annular flow channel 2, the annular anode I6 is connected with an anode of the electrode, an annular anode II7 is arranged in the device shell 1, the annular anode II7 is positioned at the lower end of the annular flow channel 2, and the annular anode II7 is connected with the anode of; the utility model relates to a natural flow water body pollution treatment device based on electric flocculation and electro-Fenton and hydrogen storage, which can realize in-situ treatment by using an annular flow passage 2 as a spiral to decelerate sewage and increase the sewage retention time; a central cathode carbon rod 5 is arranged at the center of the device, and an annular anode I6 and an annular anode II7 are arranged around the device, so that the problems of low conductivity and low current efficiency of a natural flowing water body are solved, and the current density of a cathode area is enhanced; the central cathode carbon rod 5, the annular anode I6 and the annular anode II7 are combined to realize an electric flocculation-electric Fenton combination principle, so that the combined removal of multiple pollutants is realized, heavy metal ions are removed in the electric flocculation reaction process, and organic pollutants are removed in the electric Fenton reaction process; aiming at the problem that the speed of the electric flocculation reaction is far higher than that of the electro-Fenton reaction, the system adopts an arrangement mode that the area of an annular anode I6 is small and the area of an annular anode II7 is large on the electrode arrangement to match the speed difference problem of the electric flocculation-electro-Fenton coupling; aiming at the problems of low concentration of pollutants in the natural flowing water body and long electro-Fenton removal time, the device takes 'adsorption first and then treatment' as a guiding principle, utilizes the active carbon to adsorb and enrich organic matters in the annular flow channel 2, and then carries out centralized electrolysis removal after a period of time; aiming at the problem that the adsorption can not be continuously carried out after the activated carbon is saturated in adsorption, the device can realize the regeneration of the activated carbon during the electrolysis.
The second embodiment is as follows:
the present embodiment is described below with reference to fig. 1-2, and the present embodiment further describes the first embodiment in which the chemical reaction generated in water by the cathode of the central cathode carbon rod 5 connected to the electrode is 2H2O+2e-→2OH-+H2。
The third concrete implementation mode:
the present embodiment will be described with reference to fig. 1-2, and the present embodiment further describes the first embodiment, in which oxygen is introduced into the central cathode carbon rod 5, and the chemical reaction between the central cathode carbon rod 5 and oxygen in water is O2+2H++2e-→H2O2。
The fourth concrete implementation mode:
the present embodiment will be described with reference to fig. 1-2, and the third embodiment will be further described in the present embodiment, in which the ring anode I6 is foam iron, and the ring anode II7 is graphite paper.
The fifth concrete implementation mode:
the present embodiment is described below with reference to fig. 1-2, and the fourth embodiment is further described in the present embodiment, in which the chemical reaction generated in the annular flow channel 2 by the anode of the annular anode I6 connecting electrode is Fe-2e-→Fe2+，Fe-3e-→Fe3+，Fe2++2H2O→Fe(OH)2+2H+，Fe3++3H2O→+Fe(OH)3+3H+(ii) a Flocculation refers to the process of adsorbing and depositing suspended impurities, heavy metal ions and organic pollutants in polluted water under the action of a flocculating agent. The colloid particles formed by the high molecular substance directly adsorb water molecules and are kept stable by virtue of a hydration film; according to the fasers rule, after a flocculating agent is added to the polluted water, ions having the same chemical elements as the colloidal particles are preferentially adsorbed, and the colloidal particles are thereby charged as "potential ions", and thereafter the colloidal particles will adsorb oppositely charged fine particles as "counter ions" to form an electric double layer structure. The adsorption reduces the total potential energy between two particles to form flocs with a diameter of about 10 μm, which is called agglomeration; the destabilized colloidal particles continue to form a three-dimensional floc network through chemical bridging and other actions to generate bulk flocs with the diameter of 0.6-1.2 mm, and the process is called flocculation; the traditional flocculation needs to add a flocculating agent in the polluted water body manually, which not only increases the cost, but also causes secondary pollution; the electric flocculation generates a flocculating agent under the action of current, manual addition of the flocculating agent is not needed, the electric flocculation is combined with other energy production modes such as solar energy, hydroenergy and tidal energy, and extra electric energy is not needed. In the process of electroflocculation, iron or aluminum is generally used as an anode, and a stable electrode such as graphite or platinum is used as a cathode. The anode loses electrons after being electrified to generate Fe2+Or Al3+Further form Fe (OH)3Colloids or Al (OH)3A colloid; cathode generation of H2(ii) a Then forming flocculate to fix and settle the pollutants through the coagulation and flocculation processes of colloid; compared with Al (OH)3Colloid, Fe (OH)3Flocs formed by the colloid are more compact and are easier to settle and fix; the electric flocculation part of the device is that a central cathode carbon rod 5 in the middle is connected with a cathode and an annular anode I6 arranged on the front circumference of the flow passage is made of foam iron and is connected with an anode, the anode is communicated with a positive point to generate iron ions, and then flocs are generated in the annular flow passage 2 to adsorb pollutants.
The sixth specific implementation mode:
the present embodiment is described below with reference to fig. 1-2, and the fifth embodiment is further described in the present embodiment, in which the chemical reaction generated in the annular flow channel 2 by the anode of the annular anode II7 connecting electrode is Fe2++H2O2→Fe3++3OH-OH; the Fenton reagent is a combined solution of hydrogen peroxide and ferrous ions, has strong oxidizing property and can oxidize most organic matters and biological macromolecules; the main reaction mechanism is as follows: fe2++H2O2→Fe3++OH-OH generated by the + OH Fenton reaction is a strong oxidant without selectivity and has the following 4-point properties: OH redox potentials up to 2.8V, second only to fluorine in nature; the reaction participated by the OH is a free radical reaction, the reaction speed is very high, and the residual OH cannot be caused by the combination of the redundant OH and other free radicals in water; OH has electrophilic addition, and almost all organic matter is decomposed into carbon dioxide, water and trace inorganic salts; wide catalyst selection range, homogeneous catalyst Fe2+、Fe3+And Mn2+The graphite, the activated carbon and the DSA electrode which are heterogeneous catalysts can generate OH under catalysis; electro-Fenton uses current to generate H at the cathode connected to the central cathode carbon rod 5 and the oxygen fed in2O2Catalyst Fe2+The catalyst can be produced by manual feeding or electrolysis at an anode connected with the annular anode I6, and can also be directly introduced into the central cathode carbon rod 5 to form a Fenton-like system; as shown in fig. 1, the electro-fenton part of the device is a central cathode carbon rod 5 in the middle, a graphite paper annular anode II7 anode arranged on the rear circumference of the flow channel, and an activated carbon filter layer arranged on the flow channel; when the polluted sewage enters the reactor, the organic pollutants are quickly adsorbed by the activated carbon filter layer, and meanwhile, the electrochemical reaction is carried out on the cathode to generate H2O2，H2O2Entering the flow channel, and generating a Fenton reaction under the catalytic action of iron ions generated at the upstream of the flow channel to generate hydrogen peroxide to oxidize organic matters adsorbed on the active carbon; for accelerating the electro-Fenton reaction rate, the device adopts the Fe generated by the anode2+As a catalyst to accelerate the reactionThe reaction rate is increased by other catalysts such as activated carbon and the like and ultraviolet irradiation, so that the Fenton reaction or the Fenton-like reaction is realized, and the purpose of degrading organic pollutants in water is achieved; the device adopts iron as an anode and can generate Fe (OH) in water3The purpose can be achieved by adopting aluminum or other electrodes which react with alkali to generate flocs after electrolysis.
Electric flocculation-electric Fenton coupling experiment principle electric flocculation is carried out at pH 6 and current density 5A dm-2And electrifying for 5min under the condition of electrode spacing of 3 cm, wherein Cr6+The removal rate is as high as 74.27%. The electro-Fenton degradation concentration of the acid yellow dye is 80mg/L, and the current density is 15 mA-cm-2，Fe2+Electrifying for 50min under the condition of the content of 0.3mM, wherein the decolorization rate of the dye wastewater reaches 95.9 percent; the effect of removing heavy metal ions by electrocoagulation is obvious, and the obvious effect is usually achieved after the reaction is carried out for 5-10 min; the electro-Fenton has good effect of removing most organic matters, and obvious decolorization effect appears after reaction for 40-60 min. The project group combines the difference of the electro-flocculation and electro-Fenton treatment objects and the complementation of reaction products, realizes two reactions in the same device, and realizes the combined removal of various pollutants; the annular anode I6 adopts the foam iron electron losing to provide Fe2+The central cathode carbon rod 5 takes a graphite flake as an electrode and is exposed to oxygen to generate H2O2，Fe2+And H2O2After diffusion collision, the mixture is transferred into a power control reaction zone to generate OH and Fe3+OH oxidatively decomposes macromolecular organic substances into CO2And H2O, while Fe3+Formation of Fe (OH)3The colloid adsorbs heavy metal ions for coagulation and flocculation; the main reaction equation is as follows: anode: fe-2e-→Fe2+；Fe-3e-→Fe3+；Fe2++2OH-→Fe(OH)2；Fe3++3OH-→Fe(OH)3(ii) a Cathode: o is2+2H++2e-→H2O2(ii) a Solution: fe2++H2O2→Fe3++3OH-+·OH。
The seventh embodiment:
the present embodiment is described below with reference to fig. 1-2, and the present embodiment further describes any one of the fourth to sixth embodiments, where the area of the ring anode ii7 is larger than the area of the ring anode i 6; the system adopts an arrangement mode that an annular anode I6 is small in area and an annular anode II7 is large in area on electrode arrangement, and the problem of speed difference of electric flocculation-electric Fenton coupling is solved; aiming at the problems of low concentration of pollutants in a natural flowing water body and longer electro-Fenton removal time, the device takes 'adsorption first and then treatment' as a guiding principle, utilizes graphite paper of an annular anode II7 to adsorb and enrich organic matters in a channel, and then carries out centralized electrolysis removal after a period of time; aiming at the problem that the graphite paper of the annular anode II7 cannot be adsorbed continuously after being saturated, the device can realize the regeneration of the activated carbon during the electrolysis.
The specific implementation mode is eight:
the present embodiment is described below with reference to fig. 1-2, and the present embodiment further describes any one of the first to sixth embodiments, where the annular flow passage 2 is spiral; the sewage can be decelerated and the sewage retention time can be increased by the spiral shape of the annular flow passage 2 so as to realize the in-situ treatment.
The specific implementation method nine:
the following describes the present embodiment with reference to fig. 1-2, and the present embodiment further describes any one of the first to sixth embodiments, the device for treating water pollution by natural flow based on electrocoagulation and electro-fenton and hydrogen storage further comprises a hydrogen collecting device 8, the hydrogen collecting device 8 is connected to the device housing 1, and the hydrogen collecting device 8 is located above the central cathode carbon rod 5; because water is inevitably electrolyzed in the electrolysis process, hydrogen is generated at the central cathode carbon rod 5, and the hydrogen is collected on the premise of not influencing the water purification, thereby greatly reducing the energy loss; experimental setup figure 2; the hydrogen is generated on the cathode, floats upwards due to the action of buoyancy, is collected above the hydrogen collecting device and is led out through the guide pipe. And H produced2O2The water is guided into the water body through the chimney-shaped branch pipe below, the water purification effect is not influenced, and energy conservation and environmental protection are realized.
The detailed implementation mode is ten:
the present embodiment is described below with reference to fig. 1-2, and the present embodiment further describes any one of the first to sixth embodiments, in which activated carbon is provided in the annular flow passage 2; the device takes 'adsorption first and then treatment' as a guiding principle, utilizes the active carbon to adsorb and enrich organic matters in the annular flow channel 2, and then carries out centralized electrolysis for removal after a period of time; aiming at the problem that adsorption can not be continuously carried out after the activated carbon is saturated in adsorption, the device realizes activated carbon regeneration during electrolysis; in order to accelerate the electro-Fenton reaction rate, the influence effect of different catalysts on the electro-Fenton reaction rate is researched, the activated carbon is placed in a rhodamine B solution, and the activated carbon is found to have a good adsorption effect on organic matters, so that the activated carbon has dual functions of adsorption and catalysis.
The utility model discloses a natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen, its theory of operation is:
the device is placed in flowing natural water to be purified, the flowing natural water flows into the annular flow channel 2 from the water inlet 3, the annular flow channel 2 is spiral, and the sewage can be decelerated and the retention time of the sewage is increased by the spiral shape of the annular flow channel 2 to realize in-situ treatment; the central cathode carbon rod 5 is connected with the cathode of a power supply, the annular anode I6 and the annular anode II7 are both connected with the anode of the power supply, oxygen is introduced into the central cathode carbon rod 5, and the chemical reaction of the central cathode carbon rod 5 and the oxygen in water is O2+2H++2e-→H2O2(ii) a The annular anode I6 is foam iron, the annular anode II7 is graphite paper, and the chemical reaction generated by the anode of the annular anode I6 connected with the electrode in the annular flow passage 2 is Fe-2e-→Fe2+，Fe-3e-→Fe3+，Fe2++2H2O→Fe(OH)2+2H+，Fe3++3H2O→Fe(OH)3+3H+(ii) a Flocculate is generated in the annular flow passage 2 to adsorb pollutants; the chemical reaction generated by the anode of the annular anode II7 connecting electrode in the annular flow passage 2 is Fe2++H2O2→Fe3++3OH-OH; the annular anode I6 adopts the foam iron electron losing to provide Fe2+The central cathode carbon rod 5 takes a graphite flake as an electrode and is exposed to oxygen to generate H2O2，Fe2+And H2O2After diffusion collision, the mixture is transferred into a power control reaction zone to generate OH and Fe3+OH oxidatively decomposes macromolecular organic substances into CO2And H2O, while Fe3+Formation of Fe (OH)3The colloid adsorbs heavy metal ions for coagulation and flocculation; active carbon is arranged in the annular flow passage 2; the device takes 'adsorption first and then treatment' as a guiding principle, utilizes the active carbon to adsorb and enrich organic matters in the annular flow channel 2, and then carries out centralized electrolysis for removal after a period of time; aiming at the problem that adsorption can not be continuously carried out after the activated carbon is saturated in adsorption, the device realizes activated carbon regeneration during electrolysis; in order to accelerate the electro-Fenton reaction rate, the influence effect of different catalysts on the electro-Fenton reaction rate is researched, the activated carbon is placed in a rhodamine B solution, and the activated carbon is found to have a good adsorption effect on organic matters, so that the activated carbon has dual functions of adsorption and catalysis.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a natural flow water pollution treatment device based on electric flocculation and electro-fenton and store up hydrogen, includes device shell (1), annular runner (2), water inlet (3), delivery port (4), central cathode carbon-point (5), annular anode I (6) and annular anode II (7), its characterized in that: the device is characterized in that an annular flow channel (2) is arranged in a device shell (1), the upper end and the lower end of the annular flow channel (2) are respectively communicated with a water inlet (3) and a water outlet (4), a central cathode carbon rod (5) is arranged at the central position of the device shell (1), the central cathode carbon rod (5) is connected with the cathode of an electrode, an annular anode I (6) is arranged in the device shell (1), the annular anode I (6) is positioned at the upper end of the annular flow channel (2), the annular anode I (6) is connected with the anode of the electrode, the annular anode II (7) is arranged in the device shell (1), the annular anode II (7) is positioned at the lower end of the annular flow channel (2), and the annular anode II (7) is connected with the anode of.
2. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in claim 1, wherein: the chemical reaction generated by the cathode of the central cathode carbon rod (5) connecting electrode in water is 2H2O+2e-→2OH-+H2。
3. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in claim 1, wherein: oxygen is introduced into the central cathode carbon rod (5), and the chemical reaction of the central cathode carbon rod (5) and the oxygen in water is O2+2H++2e-→H2O2。
4. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in claim 3, wherein: the annular anode I (6) is foamed iron, and the annular anode II (7) is graphite paper.
5. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in claim 4, wherein: the chemical reaction generated by the anode of the annular anode I (6) connecting electrode in the annular flow channel (2) is Fe-2e-→Fe2+，Fe-3e-→Fe3+，Fe2++2H2O→Fe(OH)2+2H+，Fe3++3H2O→Fe(OH)3+3H+。
6. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in claim 5, wherein: the annular anode II (7) is connected with the anode of the electrodeThe chemical reaction generated in the annular flow passage (2) is Fe2++H2O2→Fe3++3OH-+·OH。
7. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in any one of claims 4 to 6, wherein: the area of the annular anode II (7) is larger than that of the annular anode I (6).
8. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in any one of claims 1 to 6, wherein: the annular flow channel (2) is spiral.
9. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in any one of claims 1 to 6, wherein: the natural flow water body pollution treatment device based on the electric flocculation and the electro-Fenton and storing hydrogen further comprises a hydrogen collecting device (8), wherein the hydrogen collecting device (8) is connected to the device shell (1), and the hydrogen collecting device (8) is located above the central cathode carbon rod (5).
10. The device for treating the pollution of the natural flowing water body based on the electro-flocculation and electro-Fenton and hydrogen storage as claimed in any one of claims 1 to 6, wherein: and activated carbon is arranged in the annular flow passage (2).
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| CN201920642375.6U CN209835728U (en) | 2019-05-07 | 2019-05-07 | Natural flow water pollution treatment device based on electric flocculation and electro-Fenton and hydrogen storage |
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