WO2006108326A1 - Dispositif de recyclage et de réutilisation des eaux usées compact photocatalytique à magnétisation - Google Patents

Dispositif de recyclage et de réutilisation des eaux usées compact photocatalytique à magnétisation Download PDF

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Publication number
WO2006108326A1
WO2006108326A1 PCT/CN2005/000782 CN2005000782W WO2006108326A1 WO 2006108326 A1 WO2006108326 A1 WO 2006108326A1 CN 2005000782 W CN2005000782 W CN 2005000782W WO 2006108326 A1 WO2006108326 A1 WO 2006108326A1
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Prior art keywords
photocatalytic
tank
water
case
automatic
Prior art date
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PCT/CN2005/000782
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English (en)
Chinese (zh)
Inventor
Yunlong Peng
Original Assignee
Yunlong Peng
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Publication date
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Publication of WO2006108326A1 publication Critical patent/WO2006108326A1/fr

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • C02F9/20Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/48Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/481Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/10Photocatalysts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the utility model relates to the field of sewage treatment, in particular to a recycling device for sewage such as agriculture, forestry, animal husbandry, fishery water, urban miscellaneous water, industrial water, environmental water, supplementary water source water and the like.
  • the traditional water treatment technology field, 7j purification, sludge concentration the most classic method is to directly use the reaction tank, sedimentation tank, filter tank (tank), sludge concentration tank (machine), dewatering machine, pressure Filters and a series of structures and equipment, the treated effluent can basically meet the requirements, but there is a large area of the entire project, high investment costs, resulting in low economic efficiency of the process, resulting in waste of resources, general SMEs Unbearable, this is one of the important reasons why environmental water treatment is difficult to advance.
  • the utility model provides a magnetic coagulation, automatic filtration, ozone oxidation and high efficiency for the problems of large area water storage equipment, high investment cost and high operating cost of urban industrial wastewater, municipal domestic wastewater and agricultural irrigation water.
  • Integrated sewage recycling device integrated with microfiltration, photocatalytic oxidation, UF ultrafiltration, automatic sludge dewatering, etc. The device is small in size, high in purification, low in cost, and can be automatically controlled around the clock.
  • a magnetized photocatalytic integrated sewage recycling device characterized in that:
  • the utility model comprises an integrated box provided with an inlet pipe, an outlet pipe and a sludge packing port, wherein the integrated box body is provided with a coagulation tank, an ozone oxidation tank, a photocatalytic tank and a mud water separation tank, which are sealed and installed with each other, wherein the mixture is mixed
  • the condensing tank is connected to the ozone oxidation tank through an automatic filter, and comprises a gas, medicine and water mixing chamber which is connected with the inlet pipe and the water inlet, and the gas, medicine and water mixing chamber outlet is provided with a jet nozzle, and is connected with the jet expander.
  • the photocatalytic tank is adjacent to the ozone oxidation tank, and at least one ultraviolet lamp assembly and an automatic microfilter are staggered therein, the bottom Providing at least one vertically placed UF ultrafilter assembly connected to the outlet pipe; the microfilter discharge port of the automatic microfilter is in communication with the mud water separation tank, and the mud water separation tank is provided with a solid liquid automatic separator, and the side wall It has a sludge packing port.
  • the ultraviolet lamp assembly comprises an ultraviolet lamp combination bracket and an ultraviolet lamp tube, and the ultraviolet lamp tube is fixed on the ultraviolet lamp combination bracket through the ultraviolet lamp holder, and is arranged in a horizontal or vertical arrangement, the wavelength is 185-254 nm, and each ultraviolet lamp The distance between the tubes is a distance of 40-80 cm;
  • the automatic microfilter comprises a microporous filter cartridge, one end of which is provided with a silica gel filter cleaning ring, the other end is provided with a pressure difference control inductor, the outer side is covered with a stainless steel mesh, and the surface of the stainless steel mesh is coated with a photocatalyst film.
  • the photocatalyst film material is titanium dioxide;
  • the UF ultrafilter assembly comprises a UF ultrafiltration membrane module and a UF ultrafiltration membrane support plate, wherein the UF ultrafiltration membrane support plate is sealedly connected with the bottom of the photocatalytic tank, and the middle is connected with the outlet pipe, and the bottom is provided with an ultrafiltration sewage outlet;
  • the ozone oxidation tank is provided with an ozone gas water mixing tube, and the tube is filled with an ozone gas water mixing nozzle;
  • the ultraviolet lamp tube has a quartz sleeve for waterproofing, and is fixed on the ultraviolet lamp combination bracket, which is a high-pressure pure quartz tube, and the distance between the two quartz sleeves is between 20-30 cm;
  • the automatic microporous filter is arranged in a longitudinal direction and a lateral direction, wherein the distance between each longitudinal row is 10-40 cm, and the distance between the lateral rows is 50-80 cm.
  • the utility model has the following technical effects - 1) the purification treatment speed is faster and the efficiency is higher - the water purification process such as the conventional flocculation reaction, sedimentation and filtration is slow due to the sedimentation and floating speed of the floc.
  • the resistance of the filter material causes the solid-liquid separation to take at least 2 hours or more when the water quality is clear.
  • the utility model The use of jet-type magnetic coagulation, automatic filtration, ozone oxidation, high-efficiency microfiltration, photocatalytic oxidation, automatic sludge dewatering, etc., eliminates the time of flocculation sedimentation and floating, and the removal of flocculated mud from the water.
  • the volume of the 5 minute flow is the volume of the entire unit.
  • a unit with a daily processing capacity of 1200m 3 /d (50m 3 /h) covers an area of ⁇ 8m 2 , which is 1/10 of the traditional process, the height is only 2-5 meters, and the equipment investment is 45-600,000 yuan. It is about 50% of the traditional process, and the operating cost per ton of water is 0.3 yuan, which is 30% lower than the traditional one. If used in landscape water treatment, it can be subtly hidden behind the rockery, and the produced clear water can be cascading from the rockery, which does not occupy the place at all. It solves the problem of the large area of the traditional water recycling device and high engineering cost. , high operating costs, the need for personnel management and other issues.
  • the maximum processing capacity of the device of the utility model can reach 24000m7d (100OmVh). If used in the oily sewage treatment of oil fields, the large sedimentation tank (tank) and numerous filter tanks can be omitted, which can save a lot of site and infrastructure, maintenance and operation costs. And the water quality is better.
  • a 50m 3 /h unit consumes several kilowatts of electricity, and can be made into a vehicle or ship type, and can be approached, temporarily, and emergencyly processed at any time and any place.
  • the clean water can be reused immediately after the high-dilution drilling mud treatment, which can greatly reduce the amount of water delivered.
  • the mud bagging process is convenient and is conducive to environmental protection.
  • the utility model adopts modern high-tech means, and combines precise calculations of multiple scientific technologies such as environmental engineering, biology, fluid mechanics, optics, automatic control, etc., adopts magnetic coagulation, automatic filtration, ozone oxidation, high-efficiency microfiltration, photocatalysis Oxidation, UF ultrafiltration, automatic sludge dewatering and other processes integrate multi-stage purification of water pollutants to achieve halogenated organic matter in B0D 5 , C0D, SS, NH 3 - N, bacteria, viruses and water.
  • the utility model supports water for agriculture, forestry, animal husbandry and fishery, urban miscellaneous water, industrial water, environmental water, supplementary water source Recycling of water and other sewage can be widely used in industrial wastewater, deep purification and recycling of municipal wastewater, treatment of waste permeate, industrial circulating water recycling of large power plants and refineries, oilfield water injection and garden real estate, municipal park Recycling of reclaimed water in tourist areas, disinfection of water bodies such as artificial lakes, fountains, and landscape fish ponds, and removal of algae.
  • Figure 1 is a plan view of a structural embodiment of the present invention
  • FIG. 2 is a schematic structural view of the components of the automatic microfilter of the present invention.
  • Figure 3 is a schematic structural view of the components of the ultraviolet lamp combiner of the present invention.
  • Figure 4 is a schematic view showing the structure of the ultrafilter at the bottom of the photocatalytic tank of the present invention.
  • 20. 2 support frame for filter cartridge
  • 20. 3 stainless steel mesh outside the filter cartridge
  • 20. 4 microfilter fasteners
  • 20. 5 silicon gel filter cleaning ring
  • 20. 6 pressure difference control sensor
  • 21 micro filter drain port
  • 23. 2 ultraviolet tube
  • 23. 3 quartz sleeve
  • 23. 4 ultra lamp holder
  • 26 submersible sewage pump
  • 27 check valve
  • 28 sludge packing port
  • 29-UF ultrafilter 29. 1 -UF ultrafilter assembly; 29. 2 - support plate;
  • Figure 1 illustrates an application embodiment of the present invention. As shown in the figure, it is composed of an integrated box body 1, and an inlet pipe 2, an outlet pipe 3 and a sludge packing port 28 are opened on the inner wall of the tank, and the sewage to be treated is entered by the inlet pipe 2, after being treated. The discharged sludge 3 is discharged, and the treated sludge is removed from the sludge packing port 28.
  • the integrated tank 1 is a processing tank for completing water purification, and is provided with a coagulating tank 4, an ozone oxidation tank 5, a photocatalytic tank 6 and a mud water separating tank 7, the coagulation tank 4, an ozone oxidation tank 5,
  • the photocatalytic tank 6 and the muddy water separation tank 7 are all sealed and installed so that there is no leakage between the purification processes to ensure the purification degree.
  • the coagulating tank 4 communicates with the ozone oxidation tank 5 through the automatic filter 13 through the filter water inlet 14 , and includes a gas, medicine and water mixing chamber 8 with an inlet connected to the water inlet pipe 2 , which is mixed with gas, medicine and water.
  • the chamber 8 is provided with a gas and medicine introduction tube 9, and the outlet is provided with a nozzle 11 and communicates with the jet expander 12, and the sewage in which the gas, medicine and water have been mixed can be coagulated and stirred by the jet expander 12, the coagulation box 4 is provided with a filter drain pipe 16 at the bottom, and the initially filtered sewage can be discharged through the drain pipe. Further, at the outlet of the filter drain pipe 16, a sludge check valve 27 is further installed to prevent the sludge from flowing back into the concrete tank 4.
  • a magnetic ring 10 is installed, and the sewage can be magnetized and coagulated first, and the molecular chain of the water is broken by the strong magnetic field generated by the magnetic ring 10, so that the group water molecules become single.
  • Water molecules thereby reducing the surface tension of water, softening the water, increasing the solubility of water, activating static oxygen in water, increasing the oxygen content of water, for subsequent coagulation filtration and ozone oxidation, high-efficiency microfiltration, photocatalytic oxidation treatment Brought convenience. Since the water ions in the sewage will spin after magnetization, the water has strong dissolving power, penetrating power and adsorption force. After this magnetization, aeration oxygenation and ozone oxidation treatment, the photocatalytic reaction is entered into the latter stage. The water transmittance of the device provides sufficient protection.
  • the ozone oxidation tank 5 is provided with an ozone gas water mixing pipe 18, and the nozzle is an ozone gas inlet 17 and an external ozone generator is sprayed through the ozone gas water mixing nozzle 19 disposed in the pipe to be oxidized by ozone.
  • the pollutants in the sewage in the tank 5 are strongly oxidized, sterilized and disinfected.
  • Ozone is a broad-spectrum, high-efficiency, fast-acting fungicide with strong oxidizing power. It has a strong killing effect on pathogens, viruses and microorganisms that cause human and animal diseases.
  • the oxidizing capacity is twice as high as that of chlorine, and the sterilization speed is 600 to 3000 times faster than chlorine. Even bacteria can be killed in a few seconds, and most of the organic matter can be oxidized in a few minutes.
  • An important advantage of ozone is that it does not leave any secondary pollutants harmful to humans.
  • ozone can kill many pathogenic viruses such as lactic acid bacteria, Bacillus anthracis, actinomycetes, Yersinia, Salmonella, Clostridium botulinum, influenza viruses, and the like. Ozone can also be toxic by oxidation with some toxic gases such as carbon monoxide, nitrogen monoxide, sulfur monoxide, mustard gas. In addition to sterilizing and disinfecting microorganisms, ozone can also oxidize and decompose pollutants and impurities in water, remove manganese, sulfide, phenol cyanide, pesticides, detergents and nitrites in water, and reduce chloroform, a carcinogen in chlorine treated water. , methyl chloride, carbon tetrachloride, etc., can also decolorize, remove algae, deodorize, remove turbidity.
  • pathogenic viruses such as lactic acid bacteria, Bacillus anthracis, actinomycetes, Yersinia, Salmonella, Clostridium bot
  • the photocatalytic tank 6 is adjacent to the ozone oxidation tank 5, and the bottom is a funnel shape, and at least one automatic micro-interlace is arranged therein.
  • a filter 20 and an ultraviolet lamp assembly 23 the inner wall is plated with a photocatalyst film 24, the material of which is mainly titanium dioxide, and the titanium dioxide is super-hydrophilic, after being irradiated by ultraviolet rays of sunlight or fluorescent lamps, internal The electron will be activated. The result is negatively charged electrons and positively charged holes. Electrons reduce oxygen in air or water to form hydrogen peroxide, and electron holes migrate to the oxidized surface to produce hydroxide (hydroxyl)-based radicals. These are reactive oxygen species, which have strong oxidative decomposition ability, which can decompose and remove various organic substances attached to the surface of titanium oxide, and can kill microorganisms such as bacteria and viruses.
  • the automatic microfilter 20 is a three-layered cylinder, the inner layer is a support frame 20. 2, the material is made of plastic or stainless steel; the middle layer is a microporous filter cartridge 20. 1, this The filter cartridge material is mainly polyester felt, polyethylene felt and polypropylene felt, the filtration precision is 0. 5-1 micrometer; the outer layer is a coarse-pored stainless steel mesh 20. 3, the coarse-pored stainless steel mesh surface is loaded with photocatalyst film 24 The main material of the photocatalyst film 24 is titanium dioxide. 5, Filter cartridge fastening flange 20, the other end is equipped with a pressure difference control sensor 20. 6 and the filter cartridge fastening flange 20. 4, the filter cartridge fastening flange 20 4 is connected to the integrated case 1 and is provided with a solenoid valve 22 between the integrated case 1.
  • the UV lamp assembly bracket 23.1 is fixed to the UV lamp assembly bracket 23. 1 through the UV lamp holder 23. 4 through the UV lamp holder 23.1.
  • the distance between each UV lamp tube 23.2 is 40-80 cm.
  • the UV lamp holder 23. 3 is fixed on the UV lamp combination bracket 23.1, which is high pressure pure.
  • the quartz tube can be used for isolating the water to protect the ultraviolet tube in the sleeve 23. 2, the distance between the two quartz sleeves 23.3 is between 20-30 cm, which can improve the contact surface area of the ultraviolet lamp assembly 23 with the sewage. Direct photolysis or photocatalytic oxidation of sewage contaminants further improves the utility and reliability of the utility model.
  • the UF ultrafiltration membrane module 29 includes a UF ultrafiltration membrane module 29.1 and a UF ultrafiltration membrane support plate 29.2, the UF ultrafiltration membrane support plate 29.2 is sealed with the bottom plate of the photocatalytic tank 6, the middle and the outlet pipe 3 ⁇ , the bottom of the ultrafiltration sewage outlet 29. 3 c
  • the microfilter drain port 21 of the automatic microfilter 20 is in communication with the mud water separation tank 7, the slurry separator 7 is provided with a solid-liquid automatic separator 25, and the side wall is provided with a sludge packing port 28.
  • the water flows out of the outlet pipe 3, and the microfilter discharge port 21 such as sludge and impurities flows into the muddy water separation tank 7 by the control of the electromagnetic valve 22,
  • the solid-liquid automatic separator 25 separates solid and liquid, and the dried sludge is taken away by the sludge packing port 28.
  • the utility model firstly performs the magnetization and coagulation treatment of the sewage, and then uses the high-efficiency microfilter loaded with the photocatalyst to filter the micro-pollutants of the magnetized and ozonated oxidized sewage and complete higher purification by applying ultraviolet light and photocatalyst.
  • the multi-stage purification effect can be achieved, the purification efficiency is high, the structure is compact, and the cost is low, and the photochemical reaction occurs by using the magnetization coagulation filtration, the ozone oxidation treatment, and the photocatalyst film 24 in the photocatalytic tank 6 and the ultraviolet light.
  • photocatalytic strong oxidation can achieve rapid killing of bacteria, viruses and algae in water, can achieve hydrocarbons in water, halogenated hydrocarbons, carboxylic acids, surface Organic substances such as active agents, nitrogen-containing organic substances, and organic phosphorus, as well as inorganic substances such as cyanide ions and metal ions, can be completely inorganicized to remove impurities such as residual pesticides, chloroform, polychlorinated biphenyls, organic compounds, and polycyclic aromatics. Finally, it is checked by UF ultrafiltration. In this way, the effect of recycling after deep purification of sewage is finally achieved.
  • the four parts are designed for the module, which facilitates the transportation and installation of the device.
  • the integrated device and accessories are made of stainless steel, which can improve corrosion resistance and service life.
  • UF ultrafilter component 29 is not equipped with a dedicated booster pump, which can change the gravity of up to 5 meters into pressure work, saving energy and prolonging UF super
  • the coagulant syrup from the gas medicine introduction tube 9 is continuously sucked by the negative pressure. And air, and the syrup and air and sewage are thoroughly mixed in the gas, medicine and water mixing chamber 8, so that the gas-liquid flow forms tiny bubbles therein, and the emulsification reaction promotes the diffusion of the oxygen molecules and the coagulant syrup. , speeding up the coagulation process.
  • the gas-liquid mixture that completes the coagulation process is forced through the jet nozzle 11, the strong magnetic zone generated by the magnetic ring 10 can generate a strong magnetic field of 4000 ⁇ 20000 Gauss in the water pipe.
  • the water When the magnetic lines of force are perpendicular to the water flow, the water is under the external force.
  • the magnetic field is moved at a certain flow rate to cut the magnetic field lines, and the electric charge generated in the water and the electric charge is generated.
  • the sewage then generates physical changes such as current and potential difference, and generates electric energy.
  • there is a charge and a potential in the sewage which changes the state and nature of the water itself and other substances contained in the water.
  • the magnetized water has physical and electrochemical changes in the wall and the vessel wall in contact with it. energy.
  • impurities such as salts, alkalis, and acids are dissolved to varying degrees.
  • the sewage has a certain degree of pH, and at the same time, insoluble solid impurities and trace amounts of metal and non-metal elements are suspended to varying degrees. Impurities and other elements contribute to the vast majority
  • the number of industrial and agricultural, domestic and drinking waters are non-insulating materials with certain electrical conductivity. They can be magnetized to varying degrees.
  • the calcium and iron impurities in the water also produce positive and negative ions. The ions attract each other due to the positive: 3 ⁇ 4 electric relationship, so that the suspended matter aggregates and the volume increases, and the sewage magnetization coagulation process is completed.
  • the jet expander 12 When being sprayed into the jet expander 12 by the jet nozzle 11, since the jet expander 12 is in the entire potential water, it is an oblong barrel design, the space area is more than 20 times larger than the jet nozzle 11, and the jet nozzle 11 is The jet expander 12 is a concentric circle on the same straight plane, and the jet nozzle 11 is spaced apart from the jet expander 12 by 15 cm. When the jet of the high velocity jet of the jet nozzle 11 is directed toward the jet expander 12, the jet is used for energy dissipation and entrainment.
  • the coagulated sewage in the periphery of the jet expander 12 is continuously sucked by the jet expander 12 and magnetized and mixed to form a uniform flow of large water, and the large momentum water flow with a uniform speed greatly reduces the vortex pump water directly in the water.
  • the momentum loss during fan jetting, the flow rate is greatly amplified, the flow rate is slowed down, and the impact on the condensed bulky suspended debris is reduced.
  • the principle of jet energy dissipation and entrainment is again used to propel the large volume of suspended debris into the automatic filter 13 through the automatic filter 13
  • the internal filtration precision is 20 micron filtration, and the agglomerate larger than 20 micrometers is completely intercepted.
  • the differential pressure sensor or the timer feels the cleaning filter in the automatic filter 13, the automatic filter 13 can realize the function of automatic flushing.
  • the filter residue is discharged to the mud water separation tank 7 through the filter drain pipe 16, and the mud water is separated by the centrifugal solid-liquid automatic separator 25 to enter the sludge harmless treatment.
  • the pollutants and sewage less than 20 micrometers continue to flow into the ozone oxidation tank 5 through the filter outlet 15 to complete the first Primary filtration process.
  • the ozone gas water tanker 18 Since the ozone gas water tanker 18 is disposed in the ozone oxidation tank 5, the ozone is discharged through the ozone gas pipe inlet 17 into the ozone gas water mixer 18 through the ozone nozzle 19, and the residual suspension of the ozone in the preliminary coagulation and filtration treated sewage
  • the impurities are further strongly oxidized, and further, organic substances such as B0D 5 , COD, SS, NH 3 - N, bacteria, viruses, and halogenated organic substances in water, carboxylic acids, surfactants, nitrogen-containing organic substances, and organic phosphorus are further removed.
  • the ozone-oxidized sewage is again treated by the automatic microfilter 20 in the photocatalytic tank 6, and the ozone oxidation process is completed.
  • each set of the automatic microfilters 20 is a three-layered cylinder.
  • the sewage is only forced to pass through the cylinder intermediate layer microporous filter cartridge. 2
  • the second end of the cylinder is equipped with a pressure difference control sensor 20.
  • the colloid and suspended matter in the sewage greater than 0. 5-1 micron will be retained, and the water and the suspended matter less than 0.5-1 micron will flow into the photocatalytic reaction tank 6 together.
  • the colloid and suspended solids in the sewage are more than 0. 5-1 micrometers, the sewage flow rate is slowed down and the pressure is increased. At this time, the pressure difference is controlled.
  • - - The heater 20.
  • the photocatalyst membrane When the sewage and the suspended matter less than 0.5-1 ⁇ m flow into the photocatalytic tank 6, the photocatalyst membrane is supported on the inner wall of the photocatalytic tank 6 and the outer layer of the filter cylinder. 24, under the ultraviolet light of UV light 234 from 185nm-254nm, the electrons on the forbidden band of the photocatalyst film 24 absorb light energy and are excited to the conduction band to generate highly active electrons with strong negative charge. At the same time, a positively charged hole (h+) is generated on the forbidden band, thereby generating a highly active electron-hole pair, and the oxidation potential of the photocatalyst of the semiconductor photocatalyst (Ti3 ⁇ 4) is 3 by a standard hydrogen potential meter.
  • 0V much higher than 2.07V of ozone and 1.36V of chlorine, has strong oxidizing property, and highly active photogenerated holes have strong oxidizing ability, which can adsorb 0H" and 3 ⁇ 4 on the surface of semiconductor. Oxidation is carried out to form a strong oxidizing H radical.
  • the holes themselves can also capture electrons in the organic pollutants adsorbed on the surface of the semiconductor, so that the originally non-absorbable substances are directly oxidatively decomposed, and the oxidation of the oxides has a broad spectrum, 0H radicals.
  • the electron affinity can reach 56. 3kj, which is easy to attack the organic molecular part of high electron cloud density, and further oxidizes the intermediate product to form a redox system.
  • the two oxidation modes work synergistically. Completed a more advanced photocatalytic oxidation purification process.
  • the electron acceptor can be directly reduced by the high activity electrons generated on the surface of the photogenerated semiconductor, and some of the water bodies are Contaminants - toxic metals such as Hg 2+ , Ag 1+ , Cr e+ , Cu 2+ , etc. can also be reduced to non-toxic metal molecules by accepting highly reactive electrons generated on the surface of photogenerated semiconductors.
  • Sewage is multi-staged to achieve disinfection of sewage water By-product hydrocarbons, halogenated organics (including halogenated aliphatic hydrocarbons, halogenated carboxylic acids, halogenated aromatic hydrocarbons), carboxylic acids, surfactants, nitrogen-containing organic compounds, organic substances such as organic phosphorus, and inorganic substances such as toxic metal ions Completely inorganicized to remove photocatalytic oxidation processes such as residual pesticides, chloroform, polychlorinated biphenyls, organophosphorus compounds, polycyclic aromatic hydrocarbons and other pollutants.
  • halogenated organics including halogenated aliphatic hydrocarbons, halogenated carboxylic acids, halogenated aromatic hydrocarbons
  • carboxylic acids carboxylic acids
  • surfactants nitrogen-containing organic compounds
  • organic substances such as organic phosphorus
  • inorganic substances such as toxic metal ions
  • Completely inorganicized to remove photocatalytic oxidation processes such as residual pest
  • the water undergoing the photocatalytic oxidation process enters the UF ultrafilter assembly 29 from the bottom of the photocatalytic tank 6. Since the photocatalytic tank 6 is designed as a funnel-shaped bottom, up to 5 meters, the pressure is formed by the pressure of the water itself to press the water into the UF ultrafiltration. The assembly 29 operates, so there is no need to have a dedicated booster pump. Therefore, the water subjected to the photocatalytic oxidation process is discharged from the bottom of the photocatalytic tank 6 into the UF ultrafilter assembly 29, and the reclaimed water is discharged from the outlet pipe 3 in the middle of the bottom plate of the photocatalytic tank 6 for use. The backflush of the UF ultrafilter component 29 is discharged from the ultrafiltration drain port 29. 3 into the mud water separation tank 7 and the final water quality check of the UF ultrafilter is completed.
  • the backwashing liquid of the automatic filter 13, the backwashing liquid of the automatic microfilter 20, the backwashing liquid of the UF ultrafilter unit 29, and the like are discharged into the muddy water separation tank 7, and are carried out by the centrifugal solid-liquid automatic separator 25.
  • the solid-liquid automatic separation, the sludge formed by the solid-liquid separation is packaged and transported by the sludge packing port 28, and the sewage formed by the solid-liquid separation is pumped back to the original pool by the submersible sewage pump 26 for treatment, and the submersible sewage pump 26 is installed.
  • Check valve 27 prevents backflow of sewage.
  • the utility model can be made into a magnetized photocatalytic integrated sewage regeneration utilization device with an operation volume of 10-1000 cubic meters per hour according to requirements. Since the utility model is a combination of a plurality of modules, the combination of increase and decrease modules can be satisfied to meet different water quality requirements, thereby achieving the purpose of saving equipment investment.
  • the utility model supports the agriculture, forestry, animal husbandry and fishery water with the advantages of small volume, large processing capacity, high speed, high efficiency, low operating cost, low power consumption, automatic operation, easy debugging, strong maneuverability and durability.
  • Light, spinning food industry washing wastewater (bubble, tank, bottle, raw materials, etc.), steel plant (gas washing water, steel wastewater, dust removal water), mine beneficiation wastewater, oil-bearing sewage, coal washing wastewater, Wastewater from washing mills, washing car wash water, landscape water, swimming pool water, etc. can be recycled and reused, saving a lot of water.
  • Living high-quality miscellaneous drainage living washing water
  • urban domestic sewage treatment after reaching the standard discharge water, collecting rainwater after treatment, used for flushing, car washing, washing the ground, pouring green.
  • Oil drilling wastewater, urban sewage, etc. can be treated and returned to the ground to replenish groundwater resources.

Abstract

L’invention concerne un dispositif de recyclage et de réutilisation des eaux usées compact photocatalytique à magnétisation, comprenant une enceinte intégrée avec un tuyau d’entrée, un tuyau de sortie et un trou de regroupement de boue. Ladite enceinte intégrée comporte un carter de coagulation, un carter oxydant l’ozone, un carter photocatalytique et un carter de séparation permettant de séparer la boue de l’eau. Le carter de coagulation est connecté au carter oxydant l’ozone par un filtre automatique, et il est disposé à l’intérieur d’une chambre de mélange pour mélanger du gaz, un agent et de l’eau, chambre à laquelle est connecté le tuyau d’entrée. Une buse d’éjection est installée à la sortie de la chambre de mélange et est connectée à un extenseur d’éjection. Plusieurs boucles magnétiques sont montées sur la surface externe de la buse d’éjection ou de l’extenseur d’éjection. Ledit carter photocatalytique est adjacent au carter oxydant l’ozone. On trouve à l’intérieur du carter photocatalytique des unités à lampe ultraviolette et des microtrémies automatiques en quinconce ; et au fond du carter photocatalytique, un ensemble ultrafiltrant UF vertical auquel est connecté le tuyau de sortie. Le port de drainage de ladite microtrémie automatique est mis en communication avec le carter de séparation, contenant un séparateur automatique assurant la séparation entre solide et liquide, et sur la paroi duquel se situe un trou de regroupement de boue. La présente invention combine plusieurs techniques, avec un faible cubage, un court écoulement de traitement, une grande efficacité d’épuration, un prix modeste et un contrôle automatique.
PCT/CN2005/000782 2005-04-12 2005-06-06 Dispositif de recyclage et de réutilisation des eaux usées compact photocatalytique à magnétisation WO2006108326A1 (fr)

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CN101941772A (zh) * 2010-09-03 2011-01-12 武汉慧邦环境工程技术有限公司 清洁化城市污水净化系统
EP2567944A1 (fr) * 2011-09-09 2013-03-13 Opuntias Installation et procédé de traitement et de distribution d'eau
CN106115895A (zh) * 2016-08-26 2016-11-16 济南三康环保科技有限公司 臭氧气水混合装置
CN108865400A (zh) * 2018-09-13 2018-11-23 上海绿晟环保科技有限公司 一种切削废液再生回用处理装置及工艺
CN112875987A (zh) * 2021-01-14 2021-06-01 重庆乐乐环保科技有限公司 厨余垃圾处理装置
CN113371920A (zh) * 2021-06-15 2021-09-10 山东水利建设集团有限公司 一种综合一体化供水处理系统
CN115353256B (zh) * 2022-08-22 2024-04-16 山东华城工程技术有限公司 一种微污染地表水源水净水处理工艺

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CN101090868B (zh) * 2005-04-12 2010-09-22 深圳市环境工程科学技术中心 磁化光催化集成污水再生利用装置
CN102336462A (zh) * 2011-09-02 2012-02-01 安徽工业大学 蜂窝陶瓷O3/TiO2循环流光催化氧化处理工业废水的方法
CN104925897B (zh) * 2015-07-03 2017-07-18 江苏师范大学 一种磁场感应式光催化反应器及其降解使用方法
CN108252294B (zh) * 2018-02-01 2019-12-13 中纬建设工程有限公司 基坑地下水回灌系统
CN110790434B (zh) * 2019-12-02 2021-12-31 中国有色桂林矿产地质研究院有限公司 一种同时降低选矿回用尾矿废水中铜离子、锌离子、铅离子浓度的方法
CN114506887A (zh) * 2022-01-20 2022-05-17 浙江缘森生态环境科技有限公司 污水处理系统

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CN101941772A (zh) * 2010-09-03 2011-01-12 武汉慧邦环境工程技术有限公司 清洁化城市污水净化系统
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CN108865400A (zh) * 2018-09-13 2018-11-23 上海绿晟环保科技有限公司 一种切削废液再生回用处理装置及工艺
CN112875987A (zh) * 2021-01-14 2021-06-01 重庆乐乐环保科技有限公司 厨余垃圾处理装置
CN113371920A (zh) * 2021-06-15 2021-09-10 山东水利建设集团有限公司 一种综合一体化供水处理系统
CN115353256B (zh) * 2022-08-22 2024-04-16 山东华城工程技术有限公司 一种微污染地表水源水净水处理工艺

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