CN215667580U - Direct drinking water purification treatment device - Google Patents
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- CN215667580U CN215667580U CN202120064299.2U CN202120064299U CN215667580U CN 215667580 U CN215667580 U CN 215667580U CN 202120064299 U CN202120064299 U CN 202120064299U CN 215667580 U CN215667580 U CN 215667580U
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Abstract
A direct drinking water purification treatment device belongs to the drinking water treatment field. The device consists of a membrane filtration module, a functional module and a terminal module, and raw water finally reaches or is superior to the drinking water standard of national direct drinking water through the membrane filtration module, the functional module and the terminal module respectively. Double-membrane filtration (microfiltration and nanofiltration) is introduced to replace the traditional mixed reaction precipitation process, so that the harm caused by chemical treatment is avoided, and the water quality of produced water is improved; the drinking water is weakly alkalized, mineralized, magnetized and activated by introducing the functional treatment module, so that the water quality is healthier; finally, the water quality reaches or is superior to the national direct drinking water quality standard after the ultraviolet disinfection treatment. On the basis, a novel direct drinking water purification method and a novel direct drinking water purification device are developed, so that the defects of substandard treatment effect, secondary pollution, complex operation, high operation cost and the like of the existing water purification process are overcome.
Description
Technical Field
The utility model belongs to the field of drinking water treatment, and particularly relates to an advanced treatment system and process for drinking water, in particular to a direct drinking water purification method and a direct drinking water purification device.
Background
Water is a life source and is closely related to human life, and most of tap water cannot be directly drunk at present due to serious water pollution. Therefore, the quality of the direct drinking water directly influences the health of human bodies. The direct drinking water is water which is obtained by deeply treating and purifying raw water by a special process, removing organic matters, bacteria and viruses in the raw water, reserving trace elements beneficial to human bodies in the water and outputting the trace elements to a user for direct drinking. Various available tap water or raw water meeting the standard of drinking water can be used as raw water of direct drinking water, and the direct drinking water is prepared after advanced treatment.
At present, various direct drinking water sold in China is generally prepared by removing residual pollutants, bacteria and viruses in tap water and improving the quality of the tap water through ozone oxidation, activated carbon adsorption, ultrafiltration, reverse osmosis filtration, chlorine disinfection or ozone disinfection, and then sealing into bottled water or barreled water through a filling machine or delivering the bottled water to communities for residents to drink through pipelines; the conventional method for purifying water and filtering water mainly adopts a method of adding a coagulant, the coagulant reacts with impurities in water to remove the impurities, and the removed impurities mainly comprise colloids and suspended matters in the water; the United states Environmental Protection Agency (EPA), Japan and China all use the method of enlarging the coagulant to solve, and experts at home and abroad think that organic matters in water are mainly removed by adsorption and precipitation, and the method is called as reinforced coagulation technology; however, the coagulant is added into the water to promote the precipitation of the turbid matters, components which do not react with the coagulant, such as substances with peculiar smell, can flow to the next stage, and active carbon deodorization equipment is required to be added because the peculiar smell exists in the water; as the coagulant cannot remove bacteria and viruses, chlorine must be added for sterilization, and the chlorine generates a disinfection by-product in water and is a carcinogenic substance, so the coagulant must be added additionally, and the method is a typical vicious circle; in addition, the activated carbon used for treating the conventional drinking water belongs to a non-polar adsorbent, can adsorb and remove organic matters, color, smell and taste in the water, but is also a large hotbed for bacterial reproduction; after long time use, the gaps of the activated carbon can be filled with a lot of bacteria, so that the purified water is unsafe. Due to the adoption of high-end dosing technology, the operation management becomes complicated, the water treatment equipment is expensive, the requirement on the quality of inlet water is high, the energy consumption is high, the water production cost is high, the occupied area is large, the operation management is inconvenient, and the demand of drinking direct drinking water, which accounts for more than 80 percent of rural and rural population in the country, can not be met at present.
SUMMERY OF THE UTILITY MODEL
Through long-term exploration and research, the utility model fully analyzes the defects of the existing water purification process, and introduces double-membrane filtration (microfiltration and nanofiltration) to replace the traditional mixed reaction precipitation process, thereby avoiding the harm caused by chemical treatment and improving the quality of produced water; the drinking water is weakly alkalized, mineralized, magnetized and activated by introducing the functional treatment module, so that the water quality is healthier; finally, the water quality reaches or is superior to the national direct drinking water quality standard after the ultraviolet disinfection treatment. On the basis, a novel direct drinking water purification method and a novel direct drinking water purification device are developed, so that the defects of substandard treatment effect, secondary pollution, complex operation, high operation cost and the like of the existing water purification process are overcome.
As shown in the figure, the direct drinking water purification device is characterized in that: the membrane filtration device is composed of a membrane filtration module (1), a functional module (2) and a terminal module (3), and specifically comprises the following components: the raw water respectively passes through the membrane filtration module, the functional module and the terminal module, and finally reaches or is superior to the drinking water standard of national direct drinking water.
Wherein the membrane filtration module:
the membrane filtration module is an advanced treatment technology of a conventional water purification treatment process, the membrane treatment technology is a membrane made of artificially synthesized high polymers or inorganic materials, and is a method for separating pre-removed components by using pressure difference as a driving force, the membrane filtration technology breaks away from the chemical treatment scope and is transferred to the field of physical solid-liquid treatment, and the harm caused by chemical treatment is avoided; membrane filtration can be generally classified into: microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF), Reverse Osmosis (RO); the microfiltration can remove suspended matters and bacteria with the particle size of 0.1-10 microns, and the operating pressure is 0.01-0.2 MPa; the ultrafiltration can remove 0.01 to 0.1 micron of colloid, bacteria and virus, and the operating pressure is 0.2 to 0.4 MPa; the nanofiltration is a special membrane, the surface of the membrane is negatively charged, any substance larger than 1 nanometer can be removed, and the nanofiltration also reserves components and trace elements which are beneficial to human bodies in water while removing pollutants in the water, and is widely applied to a drinking water process; the reverse osmosis, with the aperture smaller than 1 nanometer, is generally used for seawater desalination and brackish water desalination, and is not recommended for drinking water purification, because the reverse osmosis membrane has higher operating pressure (large energy consumption) and low water recovery rate, and has the main defects that the reverse osmosis membrane can remove all beneficial minerals and trace elements in human health in water while removing pollutants in water;
the membrane filtration module (1) consists of a raw water pump (1-1), a water inlet valve (1-2), a microfiltration device (1-3), a microfiltration backflow valve (1-4), a concentrated water drainage valve (1-5), a three-way valve (1-6), a microfiltration water production valve (1-7), a nanofiltration water inlet pump (1-8), a nanofiltration water inlet valve (1-9) and a nanofiltration device (1-10), a nanofiltration reflux valve (1-11), a three-way valve (1-12), a backwashing drainage valve (1-13), a nanofiltration water production valve (1-14), a pH meter (1-15), an intermediate water tank (1-16), a backwashing water pump (1-17), a backwashing water inlet valve (1-18) and a backwashing water inlet valve (1-19);
a water production system: a raw water pump (1-1) is connected with a microfiltration device (1-3) through a water inlet valve (1-2), a clear water outlet on the side surface of the upper part of the microfiltration device (1-3) is connected with a nanofiltration device (1-10) through a microfiltration water production valve (1-7), a nanofiltration water inlet pump (1-8) and a nanofiltration water inlet valve (1-9), a water outlet on the side surface of the upper part of the nanofiltration device (1-10) is connected with an intermediate water tank (1-16) through a nanofiltration water production valve (1-14), and a pH meter (1-15) is arranged in the intermediate water tank (1-16); a backwashing system: the middle water tank (1-16) is connected with a back flush water pump (1-17), the back flush water pump (1-17) is connected with the lower part of the nanofiltration device (1-10) through a first back flush water inlet valve (1-18), and the back flush water pump (1-17) is connected with the lower part of the microfiltration device (1-3) through a second back flush water inlet valve (1-19); the top of the microfiltration device (1-3) is connected with a first connecting port of a first three-way valve (1-6), the top of the nanofiltration device (1-10) is connected with a first connecting port of a second three-way valve (1-12), a second connecting port of the first three-way valve (1-6) is connected with a concentrated water drainage valve (1-5), the second connecting port of the first three-way valve (1-6) is simultaneously connected with a water valve (1-2) through a microfiltration backflow valve (1-4), a third connecting port of the first three-way valve (1-6) is connected with a second connecting port of the second three-way valve (1-12), meanwhile, the second connecting port of the second three-way valve (1-12) is also connected with a nanofiltration water inlet valve (1-9) through a nanofiltration backflow valve (1-11), and the third connecting port of the second three-way valve (1-12) is connected with a drainage valve (1-13) Connecting;
functional module (2):
the function processing module is an additional function processing technology in the conventional water purification processing technology, and the adopted method comprises the following steps: adding medicine, pH adjusting, mineralizing (such as Maifanitum, Limonitum, tourmaline, and fluorite …), filtering, mineralizing, and electromagnetically magnetizing to obtain special additional functions (such as activating, alkalescence, small molecular group, and energetic …) of drinking water;
the functional module (2) consists of a middle water pump (2-1), a pH adjusting valve (2-2), a middle water inlet valve (2-3), a pH dosing pump (2-4), a control box, a medicine storage barrel (2-5), a mineralization device (2-6), a mineralization water outlet valve (2-7), a magnetization device (2-8) and a magnetization water outlet valve (2-9); wherein the control box and the medicine storage barrel (2-5) are fixed together by a controller and the medicine storage barrel;
the middle water tank (1-16) is connected with the mineralizing device (2-6) through the middle water pump (2-1) and the middle water inlet valve (2-3), the mineralizing device (2-6) is connected with the magnetizing device (2-8) through the mineralizing water outlet valve (2-7), and the magnetizing device (2-8) is provided with a magnetizing water outlet valve (2-9); a pH meter (1-15) in the middle water tank (1-16) is connected with a control box and a controller in a medicine storage barrel (2-5), and the medicine storage barrel is connected with a middle water inlet valve (2-3) through a pH medicine adding pump (2-4) and a pH adjusting valve (2-2); the controller is also connected with the pH dosing pump (2-4) and is used for controlling the pH dosing pump (2-4).
Terminal module (3)
The terminal module is used for processing the water purification process, is the most important component in the conventional water purification processing process, and mainly adopts a disinfection technology; the purpose of drinking water disinfection is to kill microorganisms harmful to human health in water, including bacteria, viruses and protozoan cysts …, so as to prevent diseases (including cholera, typhoid and dysentery …) from being transmitted through drinking water, and the drinking water adopts a disinfection method which generally comprises the following steps: liquid chlorine (CL2) disinfection, chlorine dioxide (CLO2) disinfection, ozone (O3) disinfection and ultraviolet disinfection; during the disinfection process, disinfection byproducts with toxicity and a 'three-cause' effect are often generated, so that the concentration of the disinfection byproducts is controlled by chlorine and ozone disinfection, for chlorine disinfection, the water quality of drinking water mainly controls Trichloromethane (THMs), the ozone disinfection byproducts mainly controls bromate and formaldehyde …, but a part of the ozone disinfection byproducts cannot be removed by conventional treatment, so that the ozone disinfection can be only used for industrial water and cannot be used for drinking water disinfection; the module adopts an ultraviolet disinfection technology, ultraviolet is one type of electromagnetic wave, and when electrons in atoms jump from a high energy level to a low energy level, redundant energy can be released by the electromagnetic wave. The stronger the energy of the electromagnetic wave, the higher the frequency and the shorter the wavelength. UVC with the wavelength of 240nm-270nm can directly destroy DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) of bacteria and viruses to ensure that the microorganisms die rapidly. V-UV185nm with a wavelength of 100nm to 200nm can generate ozone, and ozone dissolved in air or water can destroy the cell walls of microorganisms by oxidation, so that the microorganisms die immediately.
The ultraviolet sterilization has the advantages that:
1. high-efficiency sterilization: the ultraviolet ray can sterilize bacteria and viruses, and the sterilization rate of 99 percent to 99.9 can be generally reached within one to two seconds.
2. High-efficiency broad-spectrum sterilization: the ultraviolet sterilization has the highest broad spectrum, and can kill almost all bacteria and viruses with high efficiency.
3. No secondary pollution: the ultraviolet sterilization does not add any chemical agent, so that the ultraviolet sterilization does not produce secondary pollution to water and the surrounding environment.
4. The operation is safe and reliable, and the operation and maintenance cost is low.
The return water flow in the circulating pipe network is more than 25% of the inlet water flow, and no dead water exists.
The terminal module (3) consists of an ultraviolet disinfection device (3-1), an intermediate valve (3-2), a water production tank (3-3), a direct drinking water faucet (3-4), a reflux pump (3-5) and a reflux control valve (3-6);
the magnetized water outlet valve (2-9) is connected with a water inlet of the ultraviolet disinfection device (3-1), a water outlet of the ultraviolet disinfection device (3-1) is connected with the water production tank (3-3) through the intermediate valve (3-2), a direct drinking water faucet (3-4) is arranged with the water production tank (3-3), and meanwhile, the water production tank (3-3) is also connected with the water inlet of the ultraviolet disinfection device (3-1) through a reflux pump (3-5) and a reflux control valve (3-6) to form circulation.
The device is flexible and reliable, and has the advantages of advanced process, simple operation, no secondary pollution and water production functionalization which is more beneficial to human health.
Compared with the prior art, the utility model relates to a direct drinking water purification treatment method and a direct drinking water purification treatment device, which have the following advantages:
(1) filtering by a double-membrane method: by adopting the microfiltration and nanofiltration dual-membrane method for filtration, the colloid, suspended matters, bacteria and viruses in water are removed, and meanwhile, the components and trace elements which are beneficial to human bodies in the water are kept, so that the method is safe and reliable and is beneficial to human health.
(2) Function processing: functional modules (weak alkalization, mineralization and magnetization) are introduced to activate and energize the water, so that the water obtains more additional functions and the water quality is better.
(3) Ultraviolet disinfection: the ultraviolet disinfection product has the following advantages:
1. european and American technologies are introduced, and first-class quality assurance is adopted: the lamp tube adopted by the air product does not generate ozone in use and can continuously work under the condition of people.
2. Compared with the similar products abroad, the product has the advantages that the sterilization strength is improved by 18-27%, and the sterilization rate can reach 99.99%.
3. The lamp tube adopted by the product emphasizes the appearance and the convenience of use on the basis of the using effect, the automation degree of the control system of the product is high, and the functions of fault alarm, automatic sound and light alarm, accumulative timing, ultraviolet intensity monitoring, water temperature monitoring, time accumulation, ultraviolet monitoring and the like can be completed.
4. The inside and the outside of the ultraviolet sterilizer main body are made of 304 stainless steel, and the polishing treatment is carried out on the inside and the outside of the main body to enhance the ultraviolet irradiance, so that the situation that the sterilized objects are not incompletely sterilized in the sterilization process is avoided.
(4) The whole device is modularized and standardized, so that the installation and the application are more convenient and simpler.
Drawings
FIG. 1 is a process flow diagram of a direct drinking water purification treatment method and apparatus of the present invention;
1, a membrane filtration module, 1-1 raw water pump, 1-2 water inlet valves, 1-3 microfiltration devices, 1-4 microfiltration backflow valves, 1-5 concentrated water drainage valves, 1-6 first three-way valves, 1-7 microfiltration water production valves, 1-8 nanofiltration water inlet pumps, 1-9 nanofiltration water inlet valves, 1-10 nanofiltration devices, 1-11 nanofiltration backflow valves, 1-12 second three-way valves, 1-13 backwashing water drainage valves, 1-14 nanofiltration water production valves, 1-15pH meters, 1-16 backwashing intermediate water tanks, 1-17 water pumps, 1-18 first backwashing water inlet valves and 1-19 second backwashing water inlet valves;
2, a functional module, 2-1 intermediate water pump, 2-2pH adjusting valve, 2-3 intermediate water inlet valve, 2-4pH dosing pump, 2-5 control box and drug storage barrel, 2-6 mineralizing device, 2-7 mineralizing water outlet valve, 2-8 magnetizing device, 2-9 magnetizing water outlet valve;
3 terminal module, 3-1 ultraviolet disinfection device, 3-2 intermediate valve, 3-3 water tank, 3-4 direct drinking water tap, 3-5 reflux pump, 3-6 reflux control valve.
Detailed Description
The utility model is further illustrated with reference to specific operating procedures, but the utility model is not limited to the following examples.
Example 1
The working principle and the operation process of the utility model are as follows:
as shown in figure 1, raw water (which refers to various available tap water or raw water meeting the standard of drinking water for life) enters a microfiltration device 1-3 through a raw water pump 1-1 and a water inlet valve 1-2, after being filtered by the microfiltration device, the outlet water passes through a microfiltration water production valve utility model 1-7 and a nanofiltration water inlet pump utility model 1-8 and a nanofiltration water inlet valve utility model 1-9 and enters a nanofiltration device utility model 1-10 for nanofiltration filtration, the outlet water enters an intermediate water tank 1-16 through a nanofiltration water production valve 1-14, wherein the microfiltration device 1-3 and the nanofiltration device 1-10 are subjected to cross flow filtration, and the respective concentrated water is refluxed to the corresponding microfiltration device and the corresponding nanofiltration device for circulation through a corresponding microfiltration reflux valve 1-4 and a nanofiltration reflux valve 1-11, after the concentration reaches a certain value, discharging the concentrated water through a concentrated water discharging valve 1-5; the membrane filtration module is arranged in an online backwashing system, the system takes middle water tanks 1-16 as backwashing water inlet tanks, backwashing inlet water enters corresponding microfiltration devices and nanofiltration devices through backwashing water pumps 1-17 respectively through a first backwashing water inlet valve and a second backwashing water inlet valve, and backwashing outlet water is finally discharged through a backwashing water discharge valve through a first three-way valve and a second three-way valve; an online pH meter is arranged in the middle water tank 1-16, the pH value in the middle water tank is measured in real time, water is pumped into the mineralization device 2-6 through the middle water pump 2-1, the pH value is adjusted through the control box, the medicine storage barrel 2-5, the pH medicine adding pump 2-4 and the pH adjusting valve 2-2, and the water is weakly alkalized; the weakly alkalized water enters a mineralization device 2-6 through an intermediate water inlet valve 2-3 to mineralize the water, the mineralized water enters a magnetization device 2-8 through a mineralization water outlet valve 2-7 to magnetize the water, the magnetized water enters an ultraviolet disinfection device 3-1 through a magnetization water outlet valve 2-9, and enters a water production tank 3-3 after being disinfected by ultraviolet, and finally the water is supplied to a user through a direct drinking water faucet 3-4. The water in the water production tank 3-3 is circulating activated water, the outlet water is circulated into the ultraviolet disinfection device 3-1 through the reflux control valve 3-6 by the reflux pump 3-5, the flow of the return water in the circulating pipe network is more than 25% of the flow of the inlet water, and the absence of dead water is ensured.
The device and the method of the utility model reach or even exceed the national direct drinking water quality standard.
Claims (3)
1. The utility model provides a straight drinking water purification unit which characterized in that comprises membrane filtration module (1), functional module (2), terminal module (3), specifically: raw water respectively passes through the membrane filtration module, the functional module and the terminal module;
the membrane filtration module (1) consists of a raw water pump (1-1), a water inlet valve (1-2), a microfiltration device (1-3), a microfiltration backflow valve (1-4), a concentrated water drainage valve (1-5), a first three-way valve (1-6), a microfiltration water production valve (1-7), a nanofiltration water inlet pump (1-8), a nanofiltration water inlet valve (1-9) and a nanofiltration device (1-10), a nanofiltration reflux valve (1-11), a second three-way valve (1-12), a backwashing drainage valve (1-13), a nanofiltration water production valve (1-14), a pH meter (1-15), an intermediate water tank (1-16), a backwashing water pump (1-17), a first backwashing water inlet valve (1-18) and a second backwashing water inlet valve (1-19);
a raw water pump (1-1) is connected with a microfiltration device (1-3) through a water inlet valve (1-2), a clear water outlet on the side surface of the upper part of the microfiltration device (1-3) is connected with a nanofiltration device (1-10) through a microfiltration water production valve (1-7), a nanofiltration water inlet pump (1-8) and a nanofiltration water inlet valve (1-9), a water outlet on the side surface of the upper part of the nanofiltration device (1-10) is connected with an intermediate water tank (1-16) through a nanofiltration water production valve (1-14), and a pH meter (1-15) is arranged in the intermediate water tank (1-16);
the middle water tank (1-16) is connected with a back flush water pump (1-17), the back flush water pump (1-17) is connected with the lower part of the nanofiltration device (1-10) through a first back flush water inlet valve (1-18), and the back flush water pump (1-17) is connected with the lower part of the microfiltration device (1-3) through a second back flush water inlet valve (1-19); the top of the microfiltration device (1-3) is connected with a first connecting port of a first three-way valve (1-6), the top of the nanofiltration device (1-10) is connected with a first connecting port of a second three-way valve (1-12), a second connecting port of the first three-way valve (1-6) is connected with a concentrated water drainage valve (1-5), the second connecting port of the first three-way valve (1-6) is simultaneously connected with a water valve (1-2) through a microfiltration backflow valve (1-4), a third connecting port of the first three-way valve (1-6) is connected with a second connecting port of the second three-way valve (1-12), meanwhile, the second connecting port of the second three-way valve (1-12) is also connected with a nanofiltration water inlet valve (1-9) through a nanofiltration backflow valve (1-11), and the third connecting port of the second three-way valve (1-12) is connected with a drainage valve (1-13) Connecting;
the functional module (2) consists of a middle water pump (2-1), a pH adjusting valve (2-2), a middle water inlet valve (2-3), a pH dosing pump (2-4), a control box, a medicine storage barrel (2-5), a mineralization device (2-6), a mineralization water outlet valve (2-7), a magnetization device (2-8) and a magnetization water outlet valve (2-9); wherein the control box and the medicine storage barrel (2-5) are fixed together by a controller and the medicine storage barrel;
the middle water tank (1-16) is connected with the mineralizing device (2-6) through the middle water pump (2-1) and the middle water inlet valve (2-3), the mineralizing device (2-6) is connected with the magnetizing device (2-8) through the mineralizing water outlet valve (2-7), and the magnetizing device (2-8) is provided with a magnetizing water outlet valve (2-9); a pH meter (1-15) in the middle water tank (1-16) is connected with a control box and a controller in a medicine storage barrel (2-5), and the medicine storage barrel is connected with a middle water inlet valve (2-3) through a pH medicine adding pump (2-4) and a pH adjusting valve (2-2); the controller is also connected with the pH dosing pump (2-4) and is used for controlling the pH dosing pump (2-4);
the terminal module (3) consists of an ultraviolet disinfection device (3-1), an intermediate valve (3-2), a water production tank (3-3), a direct drinking water faucet (3-4), a reflux pump (3-5) and a reflux control valve (3-6);
the magnetized water outlet valve (2-9) is connected with a water inlet of the ultraviolet disinfection device (3-1), a water outlet of the ultraviolet disinfection device (3-1) is connected with the water production tank (3-3) through the intermediate valve (3-2), a direct drinking water faucet (3-4) is arranged with the water production tank (3-3), and meanwhile, the water production tank (3-3) is also connected with the water inlet of the ultraviolet disinfection device (3-1) through a reflux pump (3-5) and a reflux control valve (3-6) to form circulation.
2. A direct drinking water purifying treatment device according to claim 1, wherein the micro-filtration device can remove suspended matters and bacteria of 0.1-10 microns, and the operation pressure is 0.01-0.2 MPa; the nanofiltration device is a membrane, the surface of the membrane is negatively charged, any substance larger than 1 nanometer can be removed, and the nanofiltration also retains the components and trace elements which are beneficial to human bodies in water while removing pollutants in the water.
3. A direct drinking water purification treatment apparatus as claimed in claim 1, wherein the mineralization device employs mineralization filtration for mineralization and the magnetization device employs electromagnetic magnetization for magnetization to obtain additional functions of drinking water, activation, alkalescence, small molecular group and energization.
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| CN112811708A (en) * | 2021-01-11 | 2021-05-18 | 北京安国水道自控工程技术有限公司 | Direct drinking water purification treatment method and device |
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| CN112811708A (en) * | 2021-01-11 | 2021-05-18 | 北京安国水道自控工程技术有限公司 | Direct drinking water purification treatment method and device |
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