A water purification system combining AC low-frequency electric field and ultra-fine nano-bubbles

Abstract

The present invention discloses a water purification system combining alternating low-frequency electric field and ultrafine nano-bubbles, which comprises an aerobic microbial treatment chamber and an advanced oxidation treatment chamber, an ultrafine nano-bubble generating device for absorbing water in the aerobic microbial treatment chamber and forming ultrafine nano-bubbles into the advanced oxidation treatment chamber, an alternating low-frequency electric field generating device for forming an alternating low-frequency electric field in the aerobic microbial treatment chamber, an ozone generator arranged on the ventilation pipeline of the ultrafine nano-bubble generating device, and a photocatalytic unit arranged in the advanced oxidation treatment chamber. The present invention systematically integrates a variety of technologies such as low-frequency electric field growth promotion, photocatalysis, ozone oxidation, and ultrafine nano-bubbles, greatly improving purification efficiency and purification effect.

Description

Technical Field

[0001] The invention belongs to the technical field of water purification, and in particular relates to a water purification system combining an alternating low-frequency electric field with ultra-micro nano bubbles. Background Art

[0002] With the rapid development of modern industrialization, the exposed environmental problems are becoming increasingly severe. The chemical solid hazardous waste and difficult-to-degrade, toxic and harmful, poorly biodegradable, and high-concentration waste liquids generated in the social production process are completely unable to be treated by conventional treatment methods, resulting in serious damage to the environment, directly affecting human physical and mental health and restricting the development of social modernization and economy. Water body treatment is a complex system engineering that spans multiple disciplines such as chemistry, physics, and biology. Using only one technology cannot form an effective treatment method.

[0003] Therefore, it is necessary to provide a new water purification system combining AC low-frequency electric field and ultra-fine nano-bubbles to solve the above problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a water purification system that combines AC low-frequency electric field and ultrafine nanobubbles, systematically integrating multiple technologies such as low-frequency electric field growth promotion, photocatalysis, ozone oxidation and ultrafine nanobubbles, thereby greatly improving the purification efficiency and purification effect.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a water purification system combining an alternating low-frequency electric field and ultrafine nano-bubbles, which includes an aerobic microbial treatment chamber and an advanced oxidation treatment chamber, an ultrafine nano-bubble generating device for absorbing water in the aerobic microbial treatment chamber and forming ultrafine nano-bubbles to pass into the advanced oxidation treatment chamber, an alternating low-frequency electric field generating device for forming an alternating low-frequency electric field in the aerobic microbial treatment chamber, an ozone generator arranged on the ventilation pipeline of the ultrafine nano-bubble generating device, and a photocatalytic unit arranged in the advanced oxidation treatment chamber.

[0006] Furthermore, a first carrier for aerobic microorganisms to attach is provided in the aerobic microorganism treatment chamber.

[0007] Furthermore, the first carrier is selected from one or more combinations of filter screen, activated carbon, ceramic, zeolite, silica, or foamed metal.

[0008] Furthermore, the AC low-frequency electric field generating device includes an electrode plate arranged in the aerobic microorganism treatment chamber and an AC low-frequency electric field generator connected to the electrode plate.

[0009] Furthermore, a water inlet is provided on the aerobic microbial treatment chamber, and a water outlet is provided on the advanced oxidation treatment chamber. The water outlet and the water inlet are connected to the same water space, so that the aerobic microbial treatment chamber, the advanced oxidation treatment chamber and the water space form a circulation system.

[0010] Furthermore, the pump in the ultramicro-nano bubble generating device is arranged in the aerobic microorganism treatment chamber and is wrapped by the first carrier.

[0011] Furthermore, a second carrier is provided in the advanced oxidation treatment chamber.

[0012] Furthermore, the second carrier is selected from one or more combinations of filter screen, activated carbon, ceramic, zeolite, silica, or foamed metal.

[0013] Furthermore, the photocatalytic unit includes a light source arranged in the advanced oxidation treatment chamber and a photocatalyst coated on the surface of the second carrier.

[0014] Furthermore, the light source includes an ultraviolet light source and may also include a blue light source.

[0015] Compared with the prior art, the beneficial effects of the water purification system combining AC low-frequency electric field and ultrafine nanobubbles of the present invention are: innovatively integrating the low-frequency electric field growth promotion, photocatalysis, ozone oxidation, and ultrafine nanobubbles to achieve synergistic effects, and can effectively treat high-ammonia nitrogen and high-phosphorus water bodies rich in organic matter; through the synergistic effects of various modules, a virtuous cycle is formed over and over again, and the purpose of improving water bodies and reducing COD, BOD, ammonia nitrogen, and phosphorus content can be achieved in a short time; ozone, photocatalyst, and ultrafine nanobubbles form a chain reaction to generate a large number of hydroxyl free radicals, oxidize organic matter, nitrogen oxides, and phosphorus-containing compounds in water, and generate inorganic salt components required for the growth of aerobic microorganisms; these inorganic salts are used by aerobic microorganisms through the porous honeycomb filter of the aerobic microorganism treatment cabin under the attraction of the ultrafine nanobubble generating device, and at the same time, under the action of the AC low-frequency electric field, the growth rate of aerobic microorganisms can be increased to more than ten times, effectively improving the water purification capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] The numbers in the figure represent:

[0018] 100 Water purification system combining AC low-frequency electric field and ultra-fine nano-bubbles;

[0019] 1 aerobic microbial treatment chamber, 11 a first carrier; 2 advanced oxidation treatment chamber, 21 a second carrier; 3 an ultra-micro nano bubble generating device; 4 an AC low-frequency electric field generating device, 41 an electrode plate, 42 an AC low-frequency electric field generator; 5 an ozone generator; 6 a photocatalytic unit, 61 a light source. DETAILED DESCRIPTION

[0020] Example:

[0021] Please refer to Figure 1 The present embodiment is a water purification system 100 combining an AC low-frequency electric field and ultrafine nanobubbles, which includes an aerobic microbial treatment chamber 1 and an advanced oxidation treatment chamber 2, an ultrafine nanobubble generating device 3 for absorbing water in the aerobic microbial treatment chamber 1 and forming ultrafine nanobubbles into the advanced oxidation treatment chamber 2, an AC low-frequency electric field generating device 4 for forming an AC low-frequency electric field in the aerobic microbial treatment chamber 1, an ozone generator 5 arranged on the ventilation pipeline of the ultrafine nanobubble generating device 3, and a photocatalytic unit 6 arranged in the advanced oxidation treatment chamber 2.

[0022] A first carrier 11 for aerobic microorganisms to attach is arranged in the aerobic microbial treatment chamber 1. The first carrier 11 is selected from one or more combinations of filter screens, activated carbon, ceramics, zeolites, silica, or foamed metals. It is preferably a porous honeycomb filter screen. The AC low-frequency electric field generating device 4 includes an electrode plate 41 arranged in the aerobic microbial treatment chamber 1 and an AC low-frequency electric field generator 42 connected to the electrode plate 41. A water inlet (not shown in the figure) is provided on the aerobic microbial treatment chamber 1. The pump in the ultramicro-nano bubble generating device 3 is arranged in the aerobic microbial treatment chamber 1, and is specifically wrapped in the first carrier 11. The electrode plate 41 can be arranged on one side inner wall surface or other multiple side inner wall surfaces of the aerobic microbial treatment chamber 1 as required.

[0023] The water body to be treated enters the aerobic microorganism treatment chamber 1 from the water inlet under the pumping action of the ultra-micro nano bubble generating device 3. When passing through the first carrier 11, the aerobic microorganisms attached to the first carrier 11 will quickly absorb and decompose various nutrients (including organic matter and inorganic salts) and oxygen in the water, thereby achieving the purpose of preliminary purification of the water body. In addition, under the action of the AC low-frequency electric field generating device 4, an AC low-frequency electric field is formed in the aerobic microorganism treatment chamber 1, so that the growth rate of aerobic microorganisms in the aerobic microorganism treatment chamber 1 can be increased by more than an exponential level (10 times), greatly increasing the number of aerobic microorganisms and the continuous decomposition and purification capacity.

[0024] The bubble output port in the ultramicro-nano bubble generating device 3 is arranged in the advanced oxidation treatment chamber 2 , preferably at the bottom of the advanced oxidation treatment chamber 2 .

[0025] A second carrier 21 is arranged in the advanced oxidation treatment chamber 2. The second carrier 21 is selected from one or more combinations of filter screen, activated carbon, ceramic, zeolite, silicon dioxide, or foamed metal.

[0026] A water outlet (not shown) is provided on the advanced oxidation treatment chamber 2, and the water outlet is connected to the water inlet on the aerobic microbial treatment chamber 1 to form a same water body space to be treated, so that the aerobic microbial treatment chamber 1, the advanced oxidation treatment chamber 2 and the external water area / water container form a circulation system.

[0027] The photocatalytic unit 6 includes a light source 61 disposed in the advanced oxidation treatment chamber 2 and a photocatalyst (not shown) coated on the surface of the second carrier 21. The light source 61 includes an ultraviolet light source and may also include a blue light source. The photocatalyst includes but is not limited to photocatalyst, titanium dioxide, zinc oxide, etc.

[0028] The ultrafine nano bubble generating device 3 absorbs the water body that has been preliminarily purified from the aerobic microbial treatment chamber 1, and the mixed gas of ozone and air generated by the ozone generator 5 enters the ultrafine nano bubble generating device 3, and then forms a plurality of ultrafine nano bubbles containing ozone in the advanced oxidation treatment chamber 2. The ultrafine nano bubbles are in contact with the surface of the second carrier 21. Under the excitation of ultraviolet light and blue light, a series of chain reactions occur between the ozone, the photocatalyst, and the ultrafine nano bubbles, and a large number of hydroxyl free radicals (・OH) are generated in a short time. The specific principle can be referred to the patent CN211470910U applied by our company. These hydroxyl free radicals (・O H) immediately undergoes an oxidation-reduction reaction after contacting organic matter, nitrogen oxides and phosphorus-containing compounds in the water body, oxidizing them into nutrients such as inorganic salts (nitrates, phosphates, etc.), carbon dioxide and water, thereby achieving high-efficiency and high-intensity purification of the water body; then the inorganic salts generated by oxidation are output from the water outlet of the advanced oxidation treatment chamber 2 along with the water body into the water area or water container, and then, under the pumping action of the ultra-micro nano bubble generating device 3, the next purification cycle is carried out, and the water rich in nutrients, carbon dioxide and other inorganic salts, after entering the aerobic microbial treatment chamber 1, provides the necessary substances for the growth of aerobic microorganisms, thereby better ensuring the growth of aerobic microorganisms.

[0029] The present embodiment is a water purification system 100 combining AC low-frequency electric field and ultra-fine nanobubbles, which innovatively integrates low-frequency electric field growth promotion, photocatalysis, ozone oxidation, and ultra-fine nanobubbles to achieve synergistic effects, and can effectively treat high-ammonia nitrogen and high-phosphorus water bodies rich in organic matter; through the synergistic effects of various modules, a virtuous cycle is formed over and over again, and the purpose of improving water bodies and reducing COD, BOD, ammonia nitrogen, and phosphorus content can be achieved in a short time; ozone, photocatalyst, and ultra-fine nanobubbles form a chain reaction to generate a large number of hydroxyl free radicals, oxidize organic matter, nitrogen oxides, and phosphorus-containing compounds in the water, and generate inorganic salt components required for the growth of aerobic microorganisms; these inorganic salts are used by aerobic microorganisms through the porous honeycomb filter of the aerobic microorganism treatment cabin under the attraction of the ultra-fine nanobubble generating device, and at the same time, under the action of the AC low-frequency electric field, the growth rate of aerobic microorganisms can be increased by more than ten times, effectively improving the water purification capacity.

[0030] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A water purification system combining AC low-frequency electric field and ultra-fine nano-bubbles, Features: It comprises an aerobic microbial treatment chamber and an advanced oxidation treatment chamber, an ultra-micro-nano bubble generating device for absorbing water in the aerobic microbial treatment chamber and forming ultra-micro-nano bubbles to be introduced into the advanced oxidation treatment chamber, an alternating low-frequency electric field generating device for forming an alternating low-frequency electric field in the aerobic microbial treatment chamber, an ozone generator arranged on the ventilation pipeline of the ultra-micro-nano bubble generating device, and a photocatalytic unit arranged in the advanced oxidation treatment chamber; A first carrier for aerobic microorganisms to attach is arranged in the aerobic microbial treatment chamber, a second carrier is arranged in the advanced oxidation treatment chamber, the photocatalytic unit includes a light source arranged in the advanced oxidation treatment chamber and a photocatalyst coated on the surface of the second carrier, and the AC low-frequency electric field generating device includes an electrode plate arranged in the aerobic microbial treatment chamber and an AC low-frequency electric field generator connected to the electrode plate; a water inlet is provided on the aerobic microbial treatment chamber, and a water outlet is provided on the advanced oxidation treatment chamber, and the water outlet and the water inlet are connected to the same water body space to be treated, so that the aerobic microbial treatment chamber, the advanced oxidation treatment chamber and the water body space form a circulation system; the pump in the ultramicro-nano bubble generating device is arranged in the aerobic microbial treatment chamber and is wrapped by the first carrier.

2. The water purification system combining AC low-frequency electric field and ultra-micro nano bubbles as claimed in claim 1, Features: The first carrier is selected from one or more combinations of filter screen, activated carbon, ceramic, zeolite, silicon dioxide and foam metal.

3. The water purification system combining AC low-frequency electric field and ultra-micro nano bubbles as claimed in claim 1, Features: The second carrier is selected from one or more combinations of filter screen, activated carbon, ceramic, zeolite, silicon dioxide and foamed metal.

4. The water purification system combining AC low-frequency electric field and ultra-micro nano bubbles as claimed in claim 1, Features: The light source includes an ultraviolet light source and a blue light source.

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