WO2006108326A1

WO2006108326A1 - Magnetizing photocatalytic compact wastewater reclamation and reuse device

Info

Publication number: WO2006108326A1
Application number: PCT/CN2005/000782
Authority: WO
Inventors: Yunlong Peng
Original assignee: Yunlong Peng
Priority date: 2005-04-12
Filing date: 2005-06-06
Publication date: 2006-10-19
Also published as: CN2799526Y

Abstract

A magnetizing photocatalytic compact wastewater reclamation and reuse device, comprising an integrated cabinet with which is provided an inlet pipe, an outlet pipe, and a sludge-baling hole. In said integrated cabinet a coagulating case, an ozone oxidizing case, a photocatalytic case, and a separating case separating sludge from water are provided. The coagulating case is connected with the ozone oxidizing case by an auto filter, and is provided inside with a mixing chamber for mixing gas, agent, and water together, with which the inlet pipe is connected. An ejector nozzle is provided at the outlet of the mixing chamber, and is connected with an ejector expander. Several magnetic loops are mounted on the external surface of the ejector nozzle or the ejector expander. Said photocatalytic case is adjacent to the ozone oxidizing case. Inside the photocatalytic case, there are ultraviolet lamp units and automatic microstrainers staggered; and at the bottom of the photocatalytic case, an upright standing UF ultrafilter assembly, with which the outlet pipe is connected, is provided. The drain port of said automatic microstrainer is communicated with the separating case, inside which an automatic separater separating solid from liquid is provided, and on the sidewall of which a sludge-baling hole is provided. The present invention combines several techniques, has a small cubage, a short process flow, high purification efficiency, low cost, and is of self-control.

Description

Magnetized photocatalytic integrated sewage recycling device

Technical field:

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.

BACKGROUND OF THE INVENTION With the rapid development of the social economy, the industrialization and urbanization of human society have intensified, and water pollution has become increasingly serious. In the past 10 years, China's urban domestic sewage discharge has increased at a rate of 5% per year. In 1999, it exceeded industrial wastewater discharge for the first time. In 2001, urban domestic sewage discharge was 22.1 billion tons, accounting for 53.2% of the total national sewage discharge. In 2002, the total discharge of industrial and urban domestic wastewater was 43.95 billion tons, of which the total discharge of urban domestic wastewater was 23.23 billion tons, an increase of 0.9% over the previous year. Due to such huge sewage pressure, the sewage treatment plants in various places have been overloaded for a long time, and even untreated sewage is directly discharged to rivers and lakes, which makes the rivers and lakes slowly lose their self-purification ability, forming the first representative of black odor and oxygen deficiency. The first generation of water pollution, or the formation of second-generation water pollution represented by heavy metal and toxic chemical pollution, or the formation of third-generation water pollution represented by excessive nutrient pollution, even more in the three generations of many rivers and lakes At the same time, pollution has caused water pollution in rivers and lakes in China to become increasingly serious. With the new national “Urban Wastewater Reuse and Utilization Water Quality” GB/T18920-2002 (May 2003) and “Urban Sewage Recycling Landscape Water Quality” Standard 8/118921-2002 (May 2003) The promulgation of many domestic cities such as Beijing, Shanghai, Tianjin, Qingdao, Shenzhen, Guangzhou, etc. have introduced their own wastewater recycling policies. On December 1, 2004, Tianjin Municipality required the installation of recycled water utilization systems for new residential buildings.

At present, 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.

Utility model content:

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.

The technical solution proposed by the utility model is:

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. a surface of the jet nozzle or the jet expander or both of the magnetic rings; 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.

Compared with the prior art, 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. In addition, 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. And 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. It is instantaneously generated by automatic filter and automatic high-efficiency microfiltration, and it takes almost no time. Therefore, the entire water treatment time is greatly shortened, the purification efficiency is high, and the cost is low. From the sewage entering the device to the clean water outflow unit, the whole reaction and The solid-liquid separation process takes only 5 minutes and can be controlled automatically around the clock, which is very convenient.

2) Water treatment energy is large, small size:

Since the reaction time of the device is only considered from the aspects of fluid mechanics and photochemical reaction, 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.

3) Strong mobility:

Because the device of the utility model has small volume and low power consumption, 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. For example, on the oil drilling site, 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. Organic substances such as carboxylic acid, surfactant, nitrogen-containing organic matter, organic phosphorus, and inorganic substances such as cyanide ions and metal ions are removed or completely inorganicized, so that the effluent meets or exceeds the national GB/T18920-2002 issued in May 2003. Standards for Urban Wastewater Recycling and Urban Water Quality, and GB/T18921-2002 Standard for Urban Sewage Recycling Landscape Environment Water Quality.

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.

BRIEF DESCRIPTION OF THE DRAWINGS:

Figure 1 is a plan view of a structural embodiment of the present invention;

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.

In the picture:

1 - integrated tank; 2 - inlet pipe; 3 - outlet pipe;

4 a coagulation tank; 5 - ozone oxidation tank; 6 - photocatalytic tank;

7—mud water separation tank; 8—gas, medicine, water mixing chamber; 9 gas and drug introduction tube;

10—magnetic ring; 11 one jet nozzle; 12—jet expander;

13—automatic filter; 14-filter inlet; 15—filter outlet;

16—Filter drain pipe; 17—Ozone gas pipe inlet; 18—Ozone gas water mixing pipe;

19-ozone gas-water mixing nozzle; 20-automatic microfilter; 20. 1—microporous filter cartridge;

20. 2—support frame for filter cartridge; 20. 3—stainless steel mesh outside the filter cartridge; 20. 4—microfilter fasteners;

20. 5—silica gel filter cleaning ring; 20. 6—pressure difference control sensor; 21—micro filter drain port;

22—Solenoid valve; 23—UV lamp assembly; 23. 1—UV lamp combination bracket;

23. 2—ultraviolet tube; 23. 3—quartz sleeve; 23. 4—ultra lamp holder;

23. 5—fasteners; 24—photocatalyst film; 25—solid-liquid automatic separator;

26—submersible sewage pump; 27—check valve; 28—sludge packing port;

29-UF ultrafilter; 29. 1 -UF ultrafilter assembly; 29. 2 - support plate;

29. 3—Ultrafiltration drain.

detailed description:

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. On the outer surface of the nozzle 11 and the jet expander 12, 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.

In addition, 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.

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.

As shown in Fig. 2, 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.

O. 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 squeezing of the singularity of the singularity of the singularity of the singularity of the singularity of the singularity. The distance between each UV lamp tube 23.2 is 40-80 cm. In the UV lamp holder 23. 2, 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.

As shown in Fig. 4, at least one vertically placed UF ultrafilter assembly 29 is disposed at the bottom of the photocatalytic tank 6, and is connected to the water outlet pipe 3. 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连接, 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. After purification by photocatalysis, automatic filtration, UF ultrafiltration, etc., 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. In this way, 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. Efficiently achieve high efficiency, low cost multi-stage purification, 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 concrete tank 4, the ozone oxidation tank 5, the photocatalytic tank 6, the mud water separation tank 7, etc. 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 purpose of the life of the membrane module 29; the combination of jet-type magnetic coagulation, automatic filtration, ozone oxidation, high-efficiency microfiltration, photocatalytic oxidation, UF ultrafiltration, automatic sludge dewatering, etc., embodies the compact structure and automatic control of the equipment. Creativity and novelty.

The working process of the utility model:

When the wastewater enters the gas, drug, and water mixing chamber 8 at a suitable flow rate, such as 1 m/sec to 3 m/sec, 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. When 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. 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. At this time, 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. In impure sewage, 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.

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. According to the principle, 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. In the process of pushing the sewage into the filter inlet 14 at a constant speed and large water flow, 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. When 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. After the filtration with a filtration precision of 20 micrometers in the automatic filter 13 completely intercepts the aggregates larger than 20 micrometers, 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.

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.

When the ozone-oxidized sewage enters the automatic microfilter 20, since 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. When 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. 6 will transmit the on/off signal to the solenoid valve 22 connected to each set of automatic microfilters 20 according to the set pressure range or a preset time. When the solenoid valve 22 receives the signal, the opening/closing is completed. The slag will be moved in the direction of the solenoid valve 22, and the water will be accompanied by the silica gel filter cleaning ring 20. 5 together with the water pressure. The filter residue trapped in each group of automatic microfilters 20 is discharged into the mud water treatment tank 7 through the microfilter drain port 21. When the water is used to wash out the filter residue trapped in each group of automatic microfilters 20, the solenoid valve 22 completes the closing task when the signal is received, and simultaneously drives the silica gel filter residue cleaning ring connected with the drawbars. 2 Reverts to the original position, during the entire filter cartridge cleaning process The online cleaning automation control without interruption is realized, thus completing the automatic microfilter 20 cleaning and sewage microfiltration process.

When the sewage and the suspended matter less than 0.5-1 μm 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. That is, these electrons migrate to the surface of the photocatalyst film 24 to interact with dissolved oxygen and water, thereby finally producing a hydroxyl radical having a high degree of chemical oxidation activity ( 0Η) and superoxide Ion, the order of oxidation potential from several commonly used strong oxidants (F ₂ > · 0Η > 0 ₃ > Η ₂ 0 ₂ > Η 0 ₂ · > Mn0 ₄ - > HC10 > C1 ₂ > Cr, θ '> · C10 ₂ ) It can be seen that OH radicals have a high oxidation potential, are a strong oxidizing group, can oxidize most organic pollutants and some inorganic pollutants, kill various bacteria and viruses, and completely oxidize organic substances into Carbon dioxide and water. At the same time, 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. In the photocatalytic reaction system, the two oxidation modes work synergistically. Completed a more advanced photocatalytic oxidation purification process. On the other hand, 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.

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. In this way, through the process of magnetic coagulation, automatic filtration, ozone oxidation, high-efficiency microfiltration, photocatalytic oxidation, and ultrafiltration of UF ultrafiltration, various types of organic pollutants and reclaimed water of bacteria and viruses are removed. Users use agricultural, forestry, animal husbandry, fishery water, urban miscellaneous water, industrial water, environmental water, supplementary water source and other sewage recycling, to achieve the purpose of wastewater recycling.

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. Urban mixed water, industrial water, environmental water, supplementary water source and other sewage recycling. It 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 parks, and water in tourist areas. Recycling, artificial lakes, fountains, landscape fish ponds and other water bodies disinfection, removal of algae.

The specific uses of the utility model are as follows:

1. Purification of water from rivers, rivers, lakes and reservoirs: (self-prepared water plant) - -

2. Waste water, sewage, dirty water treatment and reuse:

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.

3. Reclaimed water treatment:

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.

4. Sludge treatment:

Oil drilling sewage, river and lake sediment dredging, water plant sludge discharge, urban sewage treatment plant sedimentation tank sludge treatment: mud thickening, clean water reuse.

5. Industrial circulating cooling water discharge sewage or bypass water net softening treatment.

' 6. Supplementing groundwater resources:

Oil drilling wastewater, urban sewage, etc. can be treated and returned to the ground to replenish groundwater resources.

Claims

Rights request

1. A magnetized photocatalytic integrated sewage recycling device, characterized in that:

The utility model comprises an integrated tank (1) provided with an inlet pipe (2), an outlet pipe (3) and a sludge packing port (28), wherein the integrated casing (1) is provided with a concrete tank (4) for ozone oxidation a tank (5), a photocatalytic tank (6) and a mud water separation tank (7), wherein the concrete tank (4) is connected to the ozone oxidation tank (5) through an automatic filter (13), which includes an inlet and a inlet Water pipe (2) gas, medicine, water mixing chamber (8), gas, medicine, water mixing chamber (8) outlet is provided with a jet nozzle (11), which is in communication with the jet expander (12), and its jet nozzle (11) or the outer surface of the jet expander (12) or both are provided with a magnetic ring (10); the photocatalytic tank (6) is adjacent to the ozone oxidation tank (5), and at least one ultraviolet is staggered therein The lamp assembly (23) and the automatic microfilter (20) are provided with at least one vertically placed UF ultrafilter assembly (29) at the bottom, connected to the outlet pipe (3); the micro micro-filter (20) The filter drain port (21) is in communication with the mud water separation tank (7), and the mud water separation tank (7) is provided with a solid-liquid automatic separator (25), and the side wall is provided with a stain Mud packing mouth (28).

2. The magnetized photocatalytic integrated sewage recycling device according to claim 1, characterized in that: the coagulation tank (4), the ozone oxidation tank (5), the photocatalytic tank (6), and the mud water separation tank (7) ) Installed for sealing.

The magnetized photocatalytic integrated sewage recycling device according to claim 1, wherein: the ultraviolet lamp assembly (23) comprises an ultraviolet lamp combination bracket (23. 1) and an ultraviolet lamp tube (23.2), The UV lamp tube (23.2) is fixed on the UV lamp combination bracket (23.1) through the UV lamp holder (23. 4), staggered in horizontal or vertical rows, with a wavelength of 185-254 nm, and each UV lamp tube ( 23. 2) The distance between 40 and 80 cm.

4. The magnetized photocatalytic integrated sewage recycling device according to claim 1, wherein: the automatic microfilter (20) comprises a microporous filter cartridge (20.1), the microporous filter cartridge (20. 1) ) - the end is equipped with a silica gel filter cleaning ring (20.5), the other end is equipped with a pressure difference control sensor (20. 6), the outer side is covered with stainless steel mesh (20. 3), stainless steel mesh (20. 3) surface layer A photocatalyst film (24) is plated.

The magnetized photocatalytic integrated sewage recycling device according to claim 1, characterized in that: the inner wall of the photocatalyst tank (6) is plated with a photocatalyst film (24).

6. The magnetized photocatalytic integrated sewage recycling device according to claim 1, wherein: the UF ultrafilter assembly (29) comprises a UF ultrafiltration membrane module (29.1), 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), and the middle is connected with the outlet pipe (3), and the bottom is provided with an ultrafiltration row. Smudge (29. 3).

The magnetized photocatalytic integrated sewage recycling device according to claim 1 or 2, wherein: the ozone oxidation tank (5) is provided with an ozone gas water mixing tube (18), and the tube is filled with ozone gas water. Mix the nozzle (19).

The magnetized photocatalytic integrated sewage recycling device according to claim 3, wherein: the ultraviolet light tube (23.2) is provided with a waterproof quartz sleeve (23. 3), which is fixed in the ultraviolet On the lamp combination bracket (23. 1), it is a high-pressure pure quartz tube, and the distance between the two quartz sleeves (23. 3) is between 20-30 cm.

9. The magnetized photocatalytic integrated sewage recycling device according to claim 4, wherein: the automatic microporous filter (20) is arranged in a longitudinal direction and a lateral direction, wherein a distance between each longitudinal row is 10-40 cm. The distance between the horizontal rows is 50-80cm.

The magnetized photocatalytic integrated sewage recycling apparatus according to claim 4 or 5, wherein the photocatalyst film (24) is made of titanium dioxide.