CN213388169U - Membrane separation and ozone ultraviolet ray combined drinking water disinfection and sterilization system - Google Patents
Membrane separation and ozone ultraviolet ray combined drinking water disinfection and sterilization system Download PDFInfo
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- CN213388169U CN213388169U CN202020973975.3U CN202020973975U CN213388169U CN 213388169 U CN213388169 U CN 213388169U CN 202020973975 U CN202020973975 U CN 202020973975U CN 213388169 U CN213388169 U CN 213388169U
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Abstract
The utility model provides a membrane separation and ozone ultraviolet allies oneself with drinking water disinfection and sterilization system of usefulness which characterized by: the device consists of a pretreatment device, a membrane separation device, a water tank, an ozone generator, a gas-water mixing pump, a filling pump, an ozone/ultraviolet combined generator system and a water path, a circuit and a gas path thereof. According to the water quality characteristics of different water species drinking water such as purified water, mineral water and the like, the precursor affecting the generation of bromate, such as organic matters, microorganisms, bromide and the like, is reduced while the water quality is purified by adopting membrane separation with proper precision; continuous feeding and sectional reaction are adopted, so that the concentration of residual ozone is reduced, the contact reaction time is shortened, and the generation amount of bromate is reduced; the ozone/ultraviolet combined advanced oxidation technology is applied to kill microorganisms efficiently and remove bromate by reduction; the harm to personnel, equipment and environment caused by high-concentration ozone overflow is eliminated, no new additive and toxic by-products are generated, and the equipment modification and operation cost is reduced.
Description
Technical Field
A drinking water quality processor, in particular to a drinking water disinfection and sterilization system combining membrane separation and ozone ultraviolet.
Background
In recent years, due to lagged measures such as process, technology, equipment, detection means and the like, the packed drinking water such as mineral water, purified water and the like, pseudomonas aeruginosa and bromate exceed standards, and the condition that the product quality is unqualified is very prominent.
The examination and scrutiny rules of the production license of drinking water in bottles (barrels) make specific provisions on the production equipment and the basic production flow of the drinking water. Wherein, the membrane separation such as reverse osmosis, nanofiltration, ultrafiltration and the like is main purification equipment, and the membrane separation precision determines the characteristics of different water species. Reverse Osmosis (RO) belongs to ion and small molecule level, can remove particle impurities of 0.0001 micron (mum) and organic matters with relative molecular weight more than 150-200 daltons (MWCO), can efficiently remove heavy metals, chemical poisons, organic matters, bacteria, viruses and the like, has a desalting function (the terms of total dissolved solids, TDS, salt content and conductivity), and is a main process for preparing purified water; nanofiltration (NF) is between ion and molecular level, can remove particle impurities with the size of 0.001 mu m and organic matters with the relative molecular weight of more than 200-400 MWCO, has the effect close to reverse osmosis, and retains part of mineral substances for drinking water; ultra-filtration (UF) belongs to molecular level, can remove particle impurities with the size of 0.002-0.1 mu m, organic matters with the relative molecular weight (molecular weight cut-off) of 1000-1000000 MWCO, bacteria, viruses and the like but can not remove heavy metals and minerals, and is a main process for preparing mineral water, spring water and other water containing minerals.
The membrane separation technologies such as reverse osmosis, nanofiltration, ultrafiltration and the like can theoretically remove bacteria, viruses and heat sources completely, but the mechanism is removal rather than killing, and the problem of overproof microorganisms is difficult to avoid due to pollution of water channels of the membrane separation and the self or water channels after the membrane separation. The existing problems are that the membrane separation precision is not properly configured, and the sterilization unit after membrane separation is not properly configured, which is an important reason for exceeding the standard of microorganisms and is also an influencing factor for exceeding the standard of bromate.
Examples of drinking water disinfection include physical disinfection (including membrane separation, ultraviolet radiation, etc.) and chemical disinfection (including ozone, hydrogen peroxide, peracetic acid, hydroxyl radicals, etc.). Ozone and Ultraviolet (UV) are mostly adopted for sterilizing and disinfecting packaged drinking water; chemical disinfectants are mainly used for equipment, packaging and environmental disinfection.
Ozone (O)3) Belongs to an oxidation type broad spectrum disinfectant, has high-efficiency killing effect on bacteria, spores, viruses, fungi, mould, algae and the like, can also remove iron and manganese, decompose organic matters, and has the effects of deodorizing, decoloring and improving sense organs. The ozone sterilization dose has a threshold value of about 0.3mg/L, and the sterilization effect is instantly generated when the residual ozone concentration in the water reaches the threshold value, so that the ozone can be rapidly and thoroughly sterilizedSterilizing; if the killing effect is greatly weakened below the threshold value, the most common method is to use the product (CT value) of the concentration (ultraviolet radiation intensity) C of the disinfectant and the disinfection time (contact reaction time) T as the control index of the killing intensity.
Before the drinking water standard is revised, the ozone sterilization disinfection intensity CT value is usually controlled to be 0.35-0.85 mg/L/10min, and a good disinfection effect can be obtained. Since the revised new standard of drinking water is implemented, in the face of the large-scale exceeding of pseudomonas aeruginosa with strong resistance, particularly, the breeding speed in hot and humid summer is extremely high, the conventional killing strength is obviously insufficient, and the killing effect is guaranteed only after the fact that the CT value of ozone is 1-2 times (0.6-1.6 mg/L/10-16 min) higher than the conventional value is discovered through practice and exploration. Some measures such as increasing the ozone adding amount (by using a residual ozone concentration meter after mixing ozone and water), prolonging the disinfection time, expanding the disinfection range, adopting a novel disinfection method and the like are adopted, so that the problem of bacteria exceeding standard is relieved to a certain extent, but the negative influence of the bacteria exceeding standard is considered to come back to the face.
As the adding amount of ozone is increased, bromate in mineral water and packaged drinking water containing bromide exceeds the standard. In the production process, a large amount of ozone overflows and is dispersed in the air, which is toxic and corrosive, stimulates and damages eyes and respiratory systems of people, and a large amount of ozone is inhaled to cause damage to lung function and cell tissues and even possibly cause canceration; can cause oxidation damage to rubber products, electric appliances and the like. The national and international ozone association stipulates that the concentration of ozone in the air cannot exceed 0.2mg/L in an operation place, ozone mainly overflows from a water tank and filling operation during production, and ozone tail gas overflowing from the water tank can be removed by an ozone destructor, so that the ozone destruction is better; the amount of ozone overflowing during filling is large, and the ozone is usually discharged by an exhaust fan, so that the air in a clean filling workshop is changed from positive pressure to negative pressure, the sterile working environment is damaged, and operators cannot bear the ozone easily; the half-life period of ozone in purified water is long, the fishy smell can be eliminated only after the ozone is placed for two days, and the ozone cannot be produced and used at present.
In order to solve the problems caused by the addition of high-dose ozone, ultraviolet rays and chemical disinfectants are used instead, but the method has poor disinfection strength, and the overproof microorganisms and new toxic byproducts are generated while the overproof bromate is solved. For water sources containing bromide, there is a conflict between ozone disinfection and microorganisms, bromate: the large amount of ozone is beneficial to killing microorganisms and is not beneficial to removing bromate: on the contrary, the small dosage is not beneficial to killing microorganisms and is beneficial to removing bromate. In order to reduce the adverse factors generated by ozone disinfection, methods such as biological activated carbon, bromine removal resin, ammonia addition, carbon dioxide addition and pH value reduction are adopted, so that the method has effective effects on removing bromides and inhibiting bromate generation, but has the defects of micro-pollution to a certain degree, influence on mouthfeel, trouble in regeneration, cost increase and the like. At present, the methods are used for treating sewage and reclaimed water successfully, but the method is not mature enough for packaging water which is directly drunk by people.
At present, ozone disinfection is mainly used, methods for controlling the generation and the content of bromate are more, but the difficulty in really finding the optimal balance point among ozone, microorganisms and bromate is high, and most of the methods are in an exploration test stage.
The Ultraviolet (UV) sterilization principle is that electromagnetic wave radiation with the wavelength of 200-280 nm causes the death of microorganisms. The ultraviolet light with high intensity can kill bacteria instantly, has no secondary pollution, can not change the physicochemical property of water, enhances the radiation intensity, prolongs the reaction time, is beneficial to the reduction of bromate by the ultraviolet light, and can not generate bromate generally. But the ultraviolet penetration is weak, and only ultraviolet with enough radiation intensity, good water layer transparency, small depth and no dead angle can irradiate the part with the killing effect. The overall effectiveness of uv disinfection is lower than ozone for both kill persistence and rejuvenation.
Practice proves that the ideal effect is difficult to achieve by singly using ozone or ultraviolet for disinfection and sterilization on the premise of simultaneously dealing with the standard exceeding problems of bromate and pseudomonas aeruginosa.
Disclosure of Invention
Aiming at the defects of the prior packaged drinking water in the aspects of disinfection and sterilization and bromate removal, the invention is based on the prior ozone and ultraviolet disinfection and sterilization according to different drinking water such as purified water, mineral water and the likeWater quality characteristics, ozone and ultraviolet (O)3UV) is combined, the Advanced Oxidation (AOP) principle is applied, the effects of killing bacteria and removing bromate are further improved, and a drinking water disinfection and sterilization system combining membrane separation and ozone ultraviolet is developed. The technical scheme adopted by the invention for solving the technical problems is as follows:
1. optimizing the membrane separation configuration. The pure water adopts a reverse osmosis membrane with the water production conductivity less than or equal to 10 mu s/cm, ozone/ultraviolet rays are combined after reverse osmosis, efficient sterilization is carried out, bromide is removed efficiently, and bromate is not generated. The traditional standard formulation of mineral water and drinking water for retaining mineral substances is an ultrafiltration membrane with cut-off molecular weight of 50000MWCO, and practice proves that the precision is low, and the effective response to the growth of bacteria and algae in severe summer and humid weather cannot be guaranteed. The invention adopts the high-precision ultrafiltration membrane with the cut-off molecular weight of 10000MWCO, on one hand, the high-precision ultrafiltration membrane can deal with pseudomonas aeruginosa with strong resistance, on the other hand, the high-precision ultrafiltration membrane can remove organic matters, microorganisms, bromide and other precursors which influence the generation of bromate, and reduce the ozone consumption by 20-30 percent, thereby reducing the generation rate of the bromide by 20-30 percent on the same scale.
2. Ozone/ultraviolet ray combined disinfection and sterilization system. By utilizing the high-energy input provided by ozone under the irradiation of ultraviolet light, the ozone and the ozone generate photochemical synergistic effect, 1mol of ozone can generate 2mol of hydroxyl free radical (HO.), and the speed of killing microorganisms is 100-1000 times of the relative oxidation capacity of ozone.
The chemical reaction formula is as follows: (1) o is3+hu→O2+O.
O.+H2O2→HO.+HO-
(2)O3+H2O+hu→O2+H2O2
H2O2+hu→2HO.
Low hydroxyl radical (HO.) content, short life, and no effective method for accurate determination, but can be determined by O3The attenuation degree of residual ozone of inlet water and outlet water of the UV reactor is indirectly judged, and the higher the attenuation degree is, the stronger the hydroxyl free radical (HO.) is; conversely, the lower the degree of attenuation, the weaker the hydroxyl radical (HO).
3. The ozone/ultraviolet combined disinfection and sterilization system is characterized in that the ozone adding and the ozone/ultraviolet are combined to form a front-section process and a rear-section process: the former process is mainly to reduce the ozone adding amount and inhibit bromate generation; the subsequent process makes up the defect that the prior process has influence on the killing effect due to the reduction of the ozone concentration by using hydroxyl radicals (HO) generated by the reaction of ozone and ultraviolet rays, exerts the synergistic effect of the ultraviolet rays and the ozone, and realizes the high-efficiency killing of microorganisms such as pseudomonas aeruginosa and the like and the reduction removal of bromate; the adding amount of ozone is reduced from 0.6mg/L to 0.3mg/L, and the reduction rate is 50 percent; the contact reaction time is reduced to 5min from 10min, and the reduction rate is 50%; the reduction rate of the bromate generation amount is 50 to 70 percent. Test methods and measurement results:
(1) test water. The bromide concentration of water containing bromide in natural water body is usually 0.015-0.2 mg/L, bromate content in drinking water treated by ozone is 0.02-0.293 mg/L (Gantaihua, etc.), drinking water sanitation and management, people's health publishing house 2008.3 the invention adopts raw water which is treated by active carbon and ultrafiltration, turbidity is less than or equal to 1, bromide content is 0.1mg/L, sodium bromide is added to make bromide content reach 1mg/L, then the water is prepared into water with added standard for pseudomonas aeruginosa to become positive as test water.
(2) Test conditions were tested. Continuously adding the mixture, wherein the CT value of the ozone disinfection intensity is 0.3-0.5 mg/L/5 min; ultraviolet radiation dose of ozone/ultraviolet reactor 30000 mu Ws/cm2And (5) running for 30min, and respectively detecting the residual ozone concentration, the pseudomonas aeruginosa content and the bromate content in the water.
(3) And (3) test results: the result is determined under the conditions of high bromide content, low ozone adding amount, short contact reaction time and positive pseudomonas aeruginosa: pseudomonas aeruginosa negative, bromate is less than 0.01 mg/L. See the table
Comparison table of ozone continuous adding and ozone/ultraviolet combined disinfection and sterilization effect
| Item | Ozone feeding point | Ozone/ultraviolet reactor |
| Residual ozone concentration/mg/L of inlet water | 0.4 | 0.35 |
| The residual ozone concentration/mg/L of the effluent | 0.35 | 0.1～0.15 |
| Influent Pseudomonas aeruginosa/CFU | Yang (Yang) | 0、0、0、0、0 |
| Effluent pseudomonas aeruginosa/CFU | 9 Yin and 1 Yang | 0、0、0、0、0 |
| Feed water bromide/mg/L | 1 | 0.35 |
| bromate/mg/L of effluent | 0.45 | ＜0.01 |
Description of the drawings: (1) the table shows the average value of the results of 10 tests, and (2) an ozone/ultraviolet combined drinking water disinfection and sterilization system developed according to test conditions is used for mineral water with bromide content of 0.02-0.1 mg/L and drinking water with retained minerals, and the indexes of microorganisms and bromate are stable and qualified after 3 years of production practice.
4. The ozone/ultraviolet combined disinfection and sterilization system. The ozone/ultraviolet reactor is a circular cylinder closed overflowing structure, is made of 316 stainless steel with strong oxidation resistance, and the inner wall of the cylinder is polished to improve the ultraviolet reflection capability and enhance the radiation intensity. The ultraviolet lamp with the quartz sleeve is arranged in the cylinder, and the single ultraviolet lamp is arranged on the central axis of the cylinder body; the arrangement of a plurality of ultraviolet lamps ensures that all points on the section of the cylinder body have uniform ultraviolet radiation intensity, the thickness of the water layer on the circumference of the lamp tube is 10-15 mm, and the dead angle of water flow is avoided; ultraviolet wavelength of 253.7nm and radiation intensity of 30000 μ Ws/cm2To accommodate the need to reduce bromate to bromide.
5. The ozone/ultraviolet combined disinfection and sterilization system. The flow rate of water passing of the ozone/ultraviolet reactor is adjusted through a reflux valve and a flowmeter of the filling pump, so that the residual ozone concentration of the outlet water of the reactor is controlled to be 0.1-0.15 mg/L, and the water still has a continuous sterilization effect for 10-15 min after entering the packaging barrel. The ozone/ultraviolet reactor is arranged at the top of the filling machine to shorten the filling distance and prolong the continuous sterilization time. The concentration of ozone emitted in the air of the filling workshop is lower than 0.15mg/L, so that the ozone does not harm the environment of personnel and equipment; the exhaust fan is not required to be opened during filling operation, so that the air in the clean workshop is kept in a positive pressure state.
The invention has the beneficial effects that: according to the water quality characteristics of different water species drinking water such as purified water, mineral water and the like, the precursor affecting the generation of bromate, such as organic matters, microorganisms, bromide and the like, is reduced while the water quality is purified by adopting membrane separation with proper precision; continuous feeding and sectional reaction are adopted, so that the concentration of residual ozone is reduced, the contact reaction time is shortened, and the generation amount of bromate is reduced; the ozone/ultraviolet combined advanced oxidation technology is applied to kill microorganisms efficiently and remove bromate by reduction; the harm to personnel, equipment and environment caused by high-concentration ozone overflow is eliminated, no new additive and toxic by-products are generated, and the equipment modification and operation cost is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the process of the present invention.
In the figure: 1. raw water pump, 2, coarse filter, 3, active carbon filter, 4, fine filter, 5, booster pump, 6, cartridge filter, 7, concentrated water pipe, 8, membrane separation device, 9, oxygen cylinder, 10, pressure reducing meter, 11, water tank inlet, 12, inlet sampling valve, 13, reactor inlet pipe, 14, viewing hole, 15, ozone/ultraviolet reactor, 16, reactor outlet pipe, 17, produced water sampling valve, 18, ultraviolet lamp with quartz sleeve, 19, filling head, 20, ballast distribution box, 21, rotor flow meter, 22, reflux valve, 23, packaging barrel, 24, filling machine, 25, filling pump, 26, outlet ball valve, 27, water tank, 28, inlet ball valve, 29, gas-water mixing pump, 30, check valve, 31, oxygen flow meter, 32, ozone generator, 33, ozone pipe, 34, ozone water sampling valve.
Detailed Description
In fig. 1, a water source pump 1, a coarse filter 2, an active carbon filter 3, a fine filter 4, a booster pump 5 and a security filter 6 are connected with each other by pipelines according to the inlet and outlet sequence to form a pretreatment system; the water outlet of the cartridge filter is connected with the water inlet of a membrane separation device 8, the concentrated water outlet of the membrane separation device is connected with a concentrated water pipe 7, and the produced water outlet of the membrane separation device is connected with the water inlet 11 of the water tank through a pipeline; an oxygen bottle 9 with a pressure reducing meter 10 is connected with an oxygen flowmeter 31 on an ozone generator 32, the outlet of the oxygen flowmeter is connected with a suction inlet pipe of a gas-water mixing pump 29 by an ozone pipe 33 through a one-way valve 30, the suction inlet pipe is connected with the lower part of a water tank 27 by a water inlet ball valve 28, a lift outlet pipe of the gas-water mixing pump is connected with the middle part of the water tank, and an ozone water sampling valve 34 is arranged on the lift outlet pipe of the gas-water mixing pump to form an ozone feeding system of the gas-water mixing pump/.
A water outlet pipe of a water tank is connected with a filling pump 25 suction lift water inlet pipe through a water outlet ball valve 26, a filling pump lift water outlet pipe is connected with a reactor water inlet pipe 13 through a rotor flow meter 21, a reflux valve 22 is installed between a filling pump suction lift water inlet and a lift water outlet, a reactor water outlet pipe 16 is connected with a filling head 19, the filling head is aligned to an inlet of a packaging barrel 23, a water inlet sampling valve 12 is installed on the reactor water inlet pipe, a water production sampling valve 17 is installed on the reactor water outlet pipe, an ultraviolet lamp 18 with a quartz sleeve is arranged in a barrel of an ozone/ultraviolet reactor 15, and a connector of the ultraviolet lamp is connected with a ballast distribution box; forming a sterilization system combining filling and ozone/ultraviolet rays.
The air-water mixing pump/water tank ozone adding system and the ozone/ultraviolet combined disinfection and sterilization system form a front-section process and a rear-section process: the former process is mainly to reduce the ozone adding amount and inhibit bromate generation; the subsequent process uses hydroxyl free radicals (HO) generated by ozone/ultraviolet reaction to make up the defect that the prior process influences the killing effect due to the reduction of the ozone concentration, exerts the photochemical synergistic effect of ultraviolet and ozone, not only effectively kills microorganisms such as pseudomonas aeruginosa and the like, but also reduces and removes bromate; the adding amount of ozone is reduced from 0.6mg/L to 0.3mg/L, the reduction rate is 50 percent, the contact reaction time is reduced from 10min to 5min, and the reduction rate is 50 percent; the generation amount of bromate is reduced by 50 to 70 percent.
The pure water membrane separation device adopts a reverse osmosis membrane with the water production conductivity less than or equal to 10 mu s/cm, an ozone/ultraviolet reactor is arranged after the reverse osmosis process, and the ozone/ultraviolet reactor is sterilized and bromide is removed without generating bromate; mineral water and drinking water needing to retain minerals are treated by adopting an ultrafiltration membrane with cut-off molecular weight of 10000MWCO, and an ozone/ultraviolet reactor is arranged after the ultrafiltration process, so that on one hand, the mineral water and the drinking water can deal with pseudomonas aeruginosa with strong resistance in hot and humid climates, on the other hand, precursors influencing bromate generation such as organic matters, microorganisms, bromides and the like are removed, the ozone adding amount is reduced, and the bromide generation rate is reduced on the same scale.
The content of the hydroxyl free radical (HO.) is low, the service life is short, no effective method for accurately measuring the content is available so far, but the strength of the hydroxyl free radical (HO.) can be indirectly judged through the attenuation degree of the residual ozone of inlet water and outlet water of an ozone/ultraviolet reactor, and the higher the attenuation degree is, the stronger the hydroxyl free radical (HO.) is; conversely, the lower the degree of attenuation, the weaker the hydroxyl radical (HO).
The ozone/ultraviolet reactor is a circular cylinder closed overflowing structure, is made of 316 stainless steel, and has polished inner wall to improve ultraviolet reflection capacity and enhance radiation intensityAn occupational vision hole 14; the ultraviolet lamp with the quartz sleeve is arranged in the cylinder, a single ultraviolet lamp is arranged on a central axis of the cylinder, the arrangement of a plurality of ultraviolet lamps ensures that each point of the section of the cylinder has uniform ultraviolet radiation intensity, and the thickness of a water layer on the circumference of the lamp tube is 10-15 mm, so that water flow dead angles are avoided; the ultraviolet wavelength is 253.7nm, and the ultraviolet radiation dose is 30000 μ Ws/cm2(ii) a The ultraviolet radiation intensity is measured by an ultraviolet illuminometer through the distance between the viewing hole and the surface of the lamp tube from the circumferential wall of the cylinder body of the ozone/ultraviolet reactor, and the irradiation time is calculated by the water flow of the ozone/ultraviolet reactor, thus forming the disinfection and sterilization system combining filling and ozone/ultraviolet.
Adjusting the water flow rate of the ozone/ultraviolet reactor through a reflux valve of a filling pump, so as to control the residual ozone concentration of the outlet water of the ozone/ultraviolet reactor to be 0.1-0.15 mg/L; after water enters the packaging barrel, residual ozone still has a continuous sterilization effect for 10-15 min, and the ozone/ultraviolet reactor is arranged at the top of the filling machine 24 so as to shorten the filling distance and prolong the continuous sterilization time; the concentration of ozone diffused in the air of the filling workshop is lower than 0.15mg/L, and an exhaust fan is not required to be opened during filling operation, so that the air of the clean workshop is kept in a positive pressure state.
The embodiments are further explained below in conjunction with the operation of the device
When water is produced, a water source is opened, impurities such as silt, suspended matters, organic matters and the like in raw water are removed by a pretreatment system of a coarse filter, an active carbon filter, a fine filter and a security filter, and the water quality meets the water source standard of GB 19298 packaged drinking water; the purified water is filtered by reverse osmosis, and the conductivity of the outlet water is less than or equal to 10 mus/cm; after mineral water and water needing to retain minerals are filtered by an ultrafiltration membrane with cut-off molecular weight of 10000MWCO, turbidity (NTU) is less than or equal to 1; the water treated by the reverse osmosis or ultrafiltration device enters a water tank, and when the water amount in the water tank exceeds 1/2, a gas-water mixing pump and a filling pump are started; starting an ozone generator, opening an oxygen cylinder valve, adjusting the flow of ozone through a pressure reducing valve and an oxygen flowmeter, adding ozone into a gas-water mixing pump, circularly stirring for 5-10 min through the gas-water mixing pump, sampling at an ozone water sampling valve of a lift water outlet pipe of the gas-water mixing pump, and controlling the concentration of the residual ozone to be 0.3-0.5 mg/; through the reflux valve on the filling pump, the water flow of the ozone/ultraviolet reactor is adjusted, the water produced from the reactor is sampled by a sampling valve, the concentration of residual ozone in water is detected, and the concentration of residual ozone in water is controlled to be 0.1-0.15 mg/L.
The implementation process of the invention should have corresponding detection means. Pretreatment, membrane separation device, water tank/gas-water mixing pump, filling pump and O3The UV reactor and the ozone generator are equipped with a flowmeter, a pressure gauge, a conductivity meter, a turbidity meter, an ozone colorimeter, an ultraviolet illuminometer and the like in each process link.
Claims (5)
1. The utility model provides a membrane separation and ozone ultraviolet allies oneself with drinking water disinfection and sterilization system of usefulness which characterized by: a water source pump (1), a coarse filter (2), an active carbon filter (3), a fine filter (4), a booster pump (5) and a security filter (6) which are connected with each other by pipelines according to the inlet and outlet sequence to form a pretreatment system; the water outlet of the cartridge filter is connected with the water inlet of the membrane separation device (8), the concentrated water outlet of the membrane separation device is connected with a concentrated water pipe (7), and the water outlet of the membrane separation device is connected with the water inlet (11) of the water tank through a pipeline; an oxygen bottle (9) with a pressure reducing meter (10) is connected with an oxygen flowmeter (31) on an ozone generator (32), the outlet of the oxygen flowmeter is connected with a suction head water inlet pipe of a gas-water mixing pump (29) through an ozone pipe (33) by a one-way valve (30), the suction head water inlet pipe is connected with the lower part of a water tank (27) by a water inlet ball valve (28), a suction head water outlet pipe of the gas-water mixing pump is connected with the middle part of the water tank, and an ozone water sampling valve (34) is arranged on the suction head water outlet pipe of the gas-water mixing pump to form a gas-water mixing pump/.
2. A drinking water disinfecting and sterilizing system using membrane separation in combination with ozone and ultraviolet rays as set forth in claim 1, wherein: a water outlet pipe of a water tank is connected with a filling pump (25) suction lift water inlet pipe through a water outlet ball valve (26), a filling pump suction lift water outlet pipe is connected with a reactor water inlet pipe (13) through a rotor flow meter (21), a reflux valve (22) is installed between a filling pump suction lift water inlet and a suction lift water outlet, a reactor water outlet pipe (16) is connected with a filling head (19), the filling head is aligned to the inlet of a packaging barrel (23), a water inlet sampling valve (12) is installed on the reactor water inlet pipe, a water production sampling valve (17) is installed on the reactor water outlet pipe, an ultraviolet lamp (18) with a quartz sleeve is placed in the barrel of an ozone/ultraviolet reactor (15), and the ultraviolet lamp connector is connected with a distribution box ballast (20; form a filling pump and ozone/ultraviolet combined disinfection and sterilization system.
3. A drinking water disinfecting and sterilizing system using membrane separation in combination with ozone and ultraviolet rays as set forth in claim 1, wherein: the pure water membrane separation device adopts a reverse osmosis membrane with the water production conductivity less than or equal to 10 mu s/cm, an ozone/ultraviolet reactor is arranged after the reverse osmosis process, and the ozone/ultraviolet reactor is sterilized and bromide is removed without generating bromate; mineral water and drinking water needing to retain minerals are treated with ultrafiltering membrane with cut-off molecular weight of 10000MWCO, and ozone/ultraviolet reactor is used after the ultrafiltering step.
4. A drinking water disinfecting and sterilizing system using membrane separation in combination with ozone and ultraviolet rays as set forth in claim 1, wherein: the ozone/ultraviolet reactor is a circular cylinder closed overflowing structure, is made of 316 stainless steel, the inner wall of the cylinder is polished to improve the ultraviolet reflection capability and enhance the radiation intensity, and an occupying hole (14) is arranged above the cylinder; a single ultraviolet lamp is arranged on the central axis of the cylinder body, and the arrangement of the multiple ultraviolet lamps ensures that each point of the cross section of the cylinder body has uniform ultraviolet radiation intensity, the ultraviolet wavelength is 253.7nm, and the ultraviolet radiation dose is 30000 mu Ws/cm2And the thickness of the water layer on the circumference of the lamp tube is 10-15 mm, so that water flow dead corners are avoided.
5. A drinking water disinfecting and sterilizing system using membrane separation in combination with ozone and ultraviolet rays as set forth in claim 1, wherein: the ozone/ultraviolet reactor is installed on the top of the filling machine (24) to shorten the filling distance and prolong the continuous sterilization time.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049581A (en) * | 2021-03-31 | 2021-06-29 | 夏高明 | Rapid ozone content inspection equipment and detection method thereof |
| CN113415852A (en) * | 2021-07-06 | 2021-09-21 | 清远华新达饮品有限公司 | Ultraviolet sterilization system for drinking water production |
-
2020
- 2020-06-01 CN CN202020973975.3U patent/CN213388169U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049581A (en) * | 2021-03-31 | 2021-06-29 | 夏高明 | Rapid ozone content inspection equipment and detection method thereof |
| CN113415852A (en) * | 2021-07-06 | 2021-09-21 | 清远华新达饮品有限公司 | Ultraviolet sterilization system for drinking water production |
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