CN111056666A - Water purification treatment system - Google Patents

Abstract

The application discloses water purification treatment system includes: the system comprises a pretreatment system for performing primary filtration treatment on raw water, an advanced treatment system for performing adsorption and oxidation on the raw water, an ultrafiltration system for performing advanced treatment on the raw water and a nanofiltration system; and a second overrunning pipe is arranged between the water outlet of the UF ultrafiltration device and the water inlet of the ozone contact filter column. This application surpasses the pipe through design pretreatment systems and carries out the primary filtration to the raw water, surpasss the pipe through the pipeline that sets up, first surpasss and can realize simplifying partial filtration process and directly access to deep treatment system, ultrafiltration system and receive one of filtration system or make up and carry out the deep treatment to the raw water, can regard as the emergency equipment after the water source pollutes, realizes the portable characteristic of this system, conveniently moves and dismantles, can be used to the technical problem that emergency treatment resident's water is cut off.

Description

Water purification treatment system

[ technical field ] A method for producing a semiconductor device

The application relates to the technical field of sewage treatment, in particular to a water purification treatment system.

[ background of the invention ]

The existing water plant belongs to the water plant of villages and towns more, and the water supply water source is more single, and lacks effective handling proruption water source pollution countermeasure at present, can't supply water in time after the water source pollutes, leads to appearing the condition that the resident cuts off the water supply, consequently, builds portable water plant pilot-scale system, in case take place serious water pollution incident, can ensure the emergent water demand of resident.

[ summary of the invention ]

The application will solve present water works and belong to the water works of villages and towns more, and the water supply water source is more single, and lacks effective proruption water source pollution countermeasure at present, can't supply water in time after the water source pollutes, leads to appearing resident's technical problem of cutting off the water supply, provides water purification processing system.

In order to solve the technical problem, the method is realized by the following technical scheme:

the invention provides a water purification treatment system, comprising: the system comprises a pretreatment system for performing primary filtration treatment on raw water, an advanced treatment system for performing adsorption and oxidation on the raw water, an ultrafiltration system for performing advanced treatment on the raw water and a nanofiltration system;

the pretreatment system comprises: a raw water storage tank, a raw water lift pump, a reaction tank, a flocculation tank, a sedimentation tank, a quartz sand filter column and a first intermediate water tank which are communicated with each other are sequentially connected through pipelines;

a wastewater inlet pipe for guiding wastewater to be treated to enter the reaction tank is arranged on the raw water storage tank, a raw water lift pump for controlling the sewage inlet rate and adjusting the water pressure is arranged on a pipeline between the reaction tank and the raw water storage tank, a quartz sand filter column water outlet connected with a drainage pipe for discharging water outside is arranged at the bottom of the quartz sand filter column, a pipeline communicated with the first intermediate water tank is further arranged between the quartz sand filter column water outlet and the drainage pipe, and a plurality of first water outlets for draining water are arranged on the first intermediate water tank;

the depth processing system comprises: a plurality of ozone contact filtering columns and activated carbon filtering columns which are communicated are sequentially connected through pipelines;

an ozone contact tank lifting pump is arranged on one of the first water outlets, a gas-liquid mixing pump is connected behind the ozone contact tank lifting pump, a first check valve is arranged between the ozone contact tank lift pump and the gas-liquid mixing pump, a water inlet of the gas-liquid mixing pump is connected with a water outlet of the ozone contact tank lift pump, the air inlet of the gas-liquid mixing pump is connected with an ozone generator, the water outlet of the gas-liquid mixing pump is respectively connected with the ozone contact filter column water inlet of each ozone contact filter column, the ozone contact filter column water outlet of each ozone contact filter column is connected with the active carbon filter column water inlet of the active carbon filter column through a pipeline, the activated carbon filter column is also provided with an activated carbon filter column water outlet for draining water, and the activated carbon filter column water outlet is connected with a drainage pipeline for draining the water;

the ultrafiltration system comprises: the UF inlet security filter, the UF ultrafiltration device and the UF production water tank are sequentially connected and communicated through a pipeline;

the water inlet of the UF inlet security filter is communicated with one of the first water outlets through a pipeline, a UF inlet pump for adjusting the water outlet rate and pressure and a second check valve for preventing water from flowing back are arranged on the pipeline, the water outlet of the UF inlet security filter is connected with the water inlet of an ultrafiltration device, and the water outlet of the UF ultrafiltration device is communicated with the UF water production tank through a pipeline;

the nanofiltration system comprises: the first security filter, the NF nanofiltration device and the NF water production tank are sequentially communicated through a pipeline;

the water inlet of the first security filter is communicated with the water outlet of the UF production water tank through a pipeline, the pipeline is further provided with a booster pump for increasing water inlet pressure, the water outlet of the first security filter is connected with the NF nanofiltration device through a pipeline, the water outlet of the NF nanofiltration device is connected with the NF production water tank through a common pipeline, and the pipeline is further provided with a third check valve;

and a second overrunning pipe is arranged between the water outlet of the UF ultrafiltration device and the water inlet of the ozone contact filter column.

The quartz sand filter column comprises: the device comprises a cylinder body, a cylinder cavity is arranged in the cylinder body, a detachable first filter plate is arranged on the cylinder body, the cylinder cavity is divided into a filtering cavity and a drainage cavity which are arranged up and down by the first filter plate, a bearing layer placed on the first filter plate is arranged at the bottom of the filtering cavity, and a quartz sand filtering layer for filtering is arranged above the bearing layer; the upper part of the column body is provided with a quartz sand filter column water inlet communicated with the filter cavity, the bottom of the column body is provided with a first backwashing air inlet, a first backwashing water inlet and a quartz sand filter column water outlet which are communicated with the drainage cavity, and the first filter plate is provided with a plurality of first filter elements so as to lead water filtered by the quartz sand filter layer into the drainage cavity.

Ozone contact filter column includes the casing, be equipped with inclosed casing cavity in the casing, the bottom of casing is equipped with ozone contact filter column water inlet, be connected with the blow-down pipe on the water inlet, the bottom of casing cavity is equipped with pall ring filler district, the upper portion of casing is equipped with ozone contact filter column delivery port, just the top of ozone contact filter column is equipped with the first tail gas discharge port who is used for discharging reaction back gas.

The activated carbon filter column comprises a filter column body, a body cavity is arranged in the filter column body, a detachable second filter plate is arranged on the body cavity, the body cavity is divided into a water filtering cavity and a water outlet cavity which are arranged up and down by the second filter plate, a sand cushion layer placed on the second filter plate is arranged at the bottom of the water filtering cavity, an activated carbon filter layer used for filtering is arranged above the sand cushion layer, an activated carbon filter column water inlet communicated with the water filtering cavity is arranged at the upper part of the activated carbon filter column body, and a second tail gas discharge port used for discharging filtered gas is further arranged at the top of the activated carbon filter column body; the bottom of the active carbon filter column body is provided with a second backwashing air inlet, a second backwashing water inlet and an active carbon filter column water outlet which are communicated with the water outlet cavity, and the first filter plate is provided with a plurality of second filter elements so as to lead water filtered by the active carbon filter layer into the water outlet cavity.

The backwashing system is used for backwashing the UF ultrafiltration device and the NF nanofiltration device and comprises a cleaning water tank, a second cleaning pump and a second security filter;

a water inlet of the second cleaning pump is respectively communicated with the cleaning water tank and the NF water production tank through pipelines, a fourth check valve for protecting the second cleaning pump is arranged on a pipeline communicated between an outlet of the second cleaning pump and an inlet of the second security filter, a water outlet of the second security filter is respectively communicated with the NF nanofiltration device and the active carbon filtration column through pipelines, and a fifth check valve and a high-pressure pump are sequentially arranged between a water delivery port of the second security filter and a water inlet of the NF membrane;

the backwashing system also comprises an air compressor, an air storage tank, a second backwashing pump and a dosing device, wherein an air outlet of the air compressor is connected with the air storage tank through an air pipe, an air outlet of the air storage tank is respectively communicated to the UF ultrafiltration device, the quartz sand filter column and the activated carbon filter column, the second backwashing pump is connected with a water outlet of the NF water production tank through a pipeline, a water outlet of the second backwashing pump and a drug outlet of the dosing device are connected to a water outlet of the UF ultrafiltration device through a pipeline, and a dosing metering pump for controlling the dosing rate is further arranged on the dosing device;

the backwashing system further comprises a third backwashing pump arranged on one of the first water outlets, the water outlet of the third backwashing pump is communicated with the quartz sand filter column through a pipeline, and a sixth check valve is arranged on the pipeline.

Each pipeline is provided with a control valve for controlling opening and closing, and the control valve is one of a butterfly valve, a plug valve, a gate valve and a ball valve.

The UF ultrafiltration device is composed of an ultrafiltration membrane component, the filtration mode is an external pressure type, the membrane aperture of the ultrafiltration membrane is 20-1000A degrees, the operation pressure is 1 x 10^4 Pa-6 x 10^5Pa, and the ultrafiltration membrane is made of polyacrylonitrile.

The NF nanofiltration device is formed by connecting at least three nanofiltration membranes in series through a pipeline, the membrane material of the nanofiltration membranes is polyamide, the diameter of micropores on the surface of the nanofiltration membranes is 1-2 nm, the molecular weight of the organic substances capable of being intercepted is 150-500, the capability of intercepting soluble salts is 2-98%, and the working pressure is 3.5-30 bar.

The sedimentation tank comprises a water distribution area and an inclined tube sedimentation area which are arranged on the left and right sides, the water distribution area is communicated with the flocculation tank through a pipeline, double rows of mud hoppers are arranged at the bottom of the inclined tube sedimentation area, an inclined tube sedimentation device for filtering is arranged in the middle of the inclined tube sedimentation area, a third baffle is arranged between the water distribution area and the inclined tube sedimentation area, a plurality of through holes for throttling are formed in the bottom of the third baffle, the included angle between the third baffle and the horizontal plane is 60 degrees, a water collection overflow groove is further formed in the right side of the inclined tube sedimentation area, and the water collection overflow groove is communicated with the quartz sand filter column through a pipeline.

A mixing reactor for stirring is arranged in the reaction tank, the mixing reactor comprises a rotating motor, an output shaft of the rotating motor is provided with a rotating shaft, the rotating shaft extends into the reaction zone, the bottom of the rotating shaft is provided with a stirrer, and the stirrer is a double-blade impeller; and a first pipeline communicated with the first flocculation tank is arranged at the bottom of the reaction tank.

The flocculation tank comprises a first flocculation tank and a second flocculation tank which are communicated through a pipeline, and a first reaction stirrer and a second reaction stirrer for accelerating stirring are respectively arranged in the first flocculation tank and the second flocculation tank;

the first reaction stirrer comprises a first rotating motor, a first rotating shaft arranged on an output shaft of the first rotating motor and a plurality of first impeller paddles arranged on the first rotating shaft, the first rotating shaft extends into the first flocculation tank, the first impeller paddles are arranged at intervals up and down, first baffles are arranged on four inner side surfaces of the first flocculation tank, and a second pipeline and a third pipeline which are used for being communicated with the second flocculation area are further arranged at the upper part of the first flocculation tank;

still be equipped with the second reaction agitator that is used for the stirring in the second flocculation basin, the second reaction agitator includes the second and rotates the motor, locates second rotation axis on the output shaft of second rotation motor, and locate a plurality of second impeller paddles in the second rotation axis, the second rotation axis stretches into in the second flocculation basin, the interval sets up from top to bottom between the second impeller paddle, all be equipped with the second baffle on four medial surfaces in second flocculation basin, the bottom in second flocculation basin still be equipped with be used for with fourth pipeline and the fifth pipeline of sedimentation tank intercommunication.

Compared with the prior art, the application has the following advantages:

based on the technical scheme, the embodiment of the invention designs the pretreatment system to carry out primary filtration treatment on the raw water, can simplify part of the filtration process and directly lead to one or a combination of the advanced treatment system, the ultrafiltration system and the nanofiltration system through the arranged pipeline, the first overrun pipe and the second overrun pipe to carry out advanced treatment on the raw water, can remove the pollutants such as chromaticity, bacteria, partial soluble salt, partial organic matters and the like in the raw water, can be used as emergency equipment after water source pollution, and the water purification treatment system adopts detachable quartz sand filter columns, ozone contact filter columns, a raw water storage tank, activated carbon filter columns, UF ultrafiltration devices, NF nanofiltration devices and the like to realize the movable characteristic of the system, is convenient to move and detach and can be used for emergency treatment Dismantle convenient, possess portable function, do not have the outer advantage of arranging of any pollutant, solved present water factory and mostly belong to the water factory in villages and towns, the water supply water source is more single, and lacks effective proruption water source pollution countermeasure at present, can't supply water in time after the water source pollutes, leads to appearing resident's disconnected technical problem of water, provides water purification processing system.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a pretreatment system of the water disinfection treatment system of the present application.

FIG. 2 is a schematic view of an advanced treatment system of the present water disinfection treatment system.

FIG. 3 is a schematic view of an ultrafiltration system of the water disinfection treatment system of the present application.

Fig. 4 is a schematic diagram of a nanofiltration system of the water disinfection treatment system of the present application.

FIG. 5 is a schematic view of an ozone generator of the water disinfecting treatment system of the present application.

FIG. 6 is a cross-sectional view of a quartz sand filter column of the water disinfection treatment system of the present application.

Figure 7 is a cross-sectional view of an ozone contact filter cartridge of the water disinfecting treatment system of the present application.

FIG. 8 is a cross-sectional view of an activated carbon filter column of the water disinfection treatment system of the present application.

FIG. 9 is a sectional view of a portion of the polishing system of the water disinfection treatment system of the present application.

Fig. 10 is a sectional view taken in the direction of a-a in fig. 9.

FIG. 11 is a schematic view of the water disinfection treatment system of the present application.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention.

Referring to fig. 1 to 11, the present example provides a water purification treatment system including: a pretreatment system 10 for performing primary filtration treatment on raw water, an advanced treatment system 20 for performing adsorption and oxidation on raw water, an ultrafiltration system 30 for performing advanced treatment on raw water, and a nanofiltration system 40; the pretreatment system 10 includes: the raw water storage tank 110, the raw water lift pump 120, the reaction tank 130, the flocculation tank 140, the sedimentation tank 150, the quartz sand filter column 160 and the first intermediate water tank 170 are sequentially connected and communicated through a pipeline; a wastewater inlet pipe for guiding wastewater to be treated to enter the reaction tank 130 is arranged on the raw water storage tank 110, a raw water lift pump 120 for controlling the wastewater inlet rate and adjusting the water pressure is arranged on a pipeline between the reaction tank 130 and the raw water storage tank 110, a quartz sand filter column water outlet 1690 for connecting a water discharge pipe to discharge water is arranged at the bottom of the quartz sand filter column 160, a pipeline communicated with the first intermediate water tank 170 is further arranged between the quartz sand filter column water outlet 1690 and the water discharge pipe, and a plurality of first water outlets 1710 for discharging water are arranged on the first intermediate water tank 170; the depth processing system 20 comprises: a plurality of ozone contact filter columns 210 and activated carbon filter columns 220 which are communicated with each other are sequentially connected through a pipeline; an ozone contact tank lift pump 230 is arranged on one first water outlet 1710 of the plurality of first water outlets 1710, a gas-liquid mixing pump 240 is connected behind the ozone contact tank lift pump 230, and a first check valve 250 is provided between the ozone contact tank lift pump 230 and the gas-liquid mixing pump 240, the water inlet of the gas-liquid mixing pump 240 is connected with the water outlet of the ozone contact tank lift pump 230, the air inlet of the gas-liquid mixing pump 240 is connected with an ozone generator 50, the water outlet of the gas-liquid mixing pump 240 is respectively connected with the ozone contact filtering column water inlet 2160 of each ozone contact filtering column 210, the ozone contact filtering column water outlet 2170 of each ozone contact filtering column 210 is connected with the activated carbon filtering column water inlet 2211 of the activated carbon filtering column 220 through a pipeline, the activated carbon filtering column 220 is further provided with an activated carbon filtering column water outlet 2212 for draining water, a water outlet 2212 of the activated carbon filter column is connected with a water drainage pipeline for discharging water outwards; the ultrafiltration system 30 comprises: the UF inlet security filter 310, the UF ultrafiltration device 320 and the UF production water tank 330 are sequentially connected and communicated through a pipeline; the water inlet of the UF inlet water security filter 310 is communicated with one first water outlet 1710 of the plurality of first water outlets 1710 through a pipeline, and the pipeline is provided with a UF inlet pump 340 for adjusting the water outlet rate and pressure and a second check valve 350 for preventing water from flowing back, the water outlet of the UF inlet water security filter 310 is connected with the water inlet of an ultrafiltration device, and the water outlet of the UF ultrafiltration device 320 is communicated with the UF water production tank 330 through a pipeline; the nanofiltration system 40 includes: a first security filter 410, an NF nanofiltration device 420 and an NF water production tank 430 which are communicated with each other are sequentially connected through pipelines; the water inlet of the first security filter 410 is communicated with the water outlet of the UF water production tank 330 through a pipeline, the pipeline is further provided with a booster pump 440 for increasing the pressure of inlet water, the water outlet of the first security filter 410 is connected with the NF nanofiltration device 420 through a pipeline, the water outlet of the NF nanofiltration device 420 is connected with the NF water production tank 430 through a common pipeline, and the pipeline is further provided with a third check valve 450; a first overrunning pipe leading to the first intermediate water tank 170 is respectively arranged on the flocculation tank 140 and the sedimentation tank 150, and a second overrunning pipe is further arranged between the water outlet of the UF ultrafiltration device 320 and the ozone contact filter column water inlet 2160. In the embodiment of the invention, the raw water of the pretreatment system is designed to be subjected to primary filtration treatment, partial filtration process can be simplified by the arranged pipeline, the first overrunning pipe and the second overrunning pipe, the raw water is directly led to one or the combination of the advanced treatment system 20, the ultrafiltration system 30 and the nanofiltration system 40 to be subjected to advanced treatment, the pollutants such as chromaticity, bacteria, partial soluble salts, partial organic matters and the like in the raw water can be removed, and the raw water can be used as emergency equipment after water source pollution Dismantle convenient, possess portable function, do not have the outer advantage of arranging of any pollutant, solved present water factory and mostly belong to the water factory in villages and towns, the water supply water source is more single, and lacks effective proruption water source pollution countermeasure at present, can't supply water in time after the water source pollutes, leads to appearing resident's disconnected technical problem of water, provides water purification processing system.

The combination of multiple processes is realized through the control valves arranged on the pipelines and the first overrunning pipe and the second overrunning pipe, so that flocculated effluent or precipitated effluent directly enters an advanced treatment process, and an overrunning pipe is additionally arranged in the middle water tank after the conventional treatment process to the middle water tank before the nanofiltration process. Specific possible implementations are: 1. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140, the sedimentation tank 150 and the quartz sand filter column 160 and then is conveyed to the ultrafiltration system 30, is ultrafiltered by the ultrafiltration system 30 and then is conveyed to the nanofiltration system 40 for treatment, and treated water is discharged after reaching the standard and is used as drinking water for residents; 2. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140, the sedimentation tank 150 and the quartz sand filter column 160 and then is conveyed to the advanced treatment system 20 for treatment, is filtered by the ozone contact filter column 210 and the activated carbon filter column 220, and is discharged as drinking water for residents after the filtered water reaches the standard; 3. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140 and the sedimentation tank 150 and then is conveyed to the ultrafiltration system 30, is ultrafiltered by the ultrafiltration system 30 and then is conveyed to the nanofiltration system 40 for treatment, and the treated water is detected to reach the standard and then is discharged to be used as drinking water for residents; 4. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140 and the sedimentation tank 150 and then is conveyed to the advanced treatment system 20 for treatment, is filtered by the ozone contact filter column 210 and the activated carbon filter column 220, and after the filtered water reaches the standard, the outlet water is used as drinking water for residents; 5. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130 and the flocculation tank 140 and then is conveyed to the ultrafiltration system 30, is ultrafiltered by the ultrafiltration system 30 and then is conveyed to the nanofiltration system 40 for treatment, and treated water is discharged after reaching the standard after being detected and is used as drinking water for residents; 6. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130 and the flocculation tank 140 and then is conveyed to the advanced treatment system 20 for treatment, is filtered by the ozone contact filter column 210 and the activated carbon filter column 220, and after the filtered water reaches the standard, the outlet water is used as drinking water for residents; 7. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140, the sedimentation tank 150 and the quartz sand filter column 160 and then is conveyed to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 8. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140, the sedimentation tank 150 and the quartz sand filter column 160 and then is conveyed to the ultrafiltration system 30 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 9. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140 and the sedimentation tank 150 and then is conveyed to the ultrafiltration system 30 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 10. raw water enters the raw water storage tank 110, passes through the reaction tank 130 and the flocculation tank 140, is filtered and then is conveyed to the ultrafiltration system 30 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 11. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the ultrafiltration system 30, the water is ultrafiltered by the ultrafiltration system 30 and then conveyed to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard after being detected and is used as drinking water for residents; 12. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the ultrafiltration system 30 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 13. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 14. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the advanced treatment system 20 for treatment, the water is filtered through the ozone contact filter column 210 and the activated carbon filter column 220, and after the filtered water reaches the standard, the outlet water is used as drinking water for residents; 15. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the advanced treatment system 20 for treatment, the water is filtered through the ozone contact filter column 210 and the activated carbon filter column 220, the filtered water is conveyed to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 16. Raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the advanced treatment system 20 for treatment, the water is filtered through the ozone contact filter column 210 and the activated carbon filter column 220, the filtered water is conveyed to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; 17. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the advanced treatment system 20 for treatment, the water is filtered through the ozone contact filter column 210 and the activated carbon filter column 220, the filtered water is conveyed to the ultrafiltration system 30, the water is ultrafiltered by the ultrafiltration system 30 and then conveyed to the nanofiltration system 40 for treatment, and the treated water is detected to reach the standard and then is discharged to be used as drinking water for residents; 18. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the ozone contact filter column 210 for treatment, the treated water is conveyed to the ultrafiltration system 30 for treatment, and the treated water is discharged after reaching the standard after detection and is used as drinking water for residents; 19. raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the ozone contact filter column 210 for treatment, the treated water is conveyed to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard after detection and is used as drinking water for residents; 20. Raw water enters the raw water storage tank 110, the raw water storage tank 110 conveys the water to the ozone contact filter column 210 for treatment, the treated water enters the ultrafiltration system 30, is subjected to ultrafiltration by the ultrafiltration system 30 and then is conveyed to the nanofiltration system 40 for treatment, and the treated water is discharged after reaching the standard and is used as drinking water for residents; an online turbidity monitoring instrument sensor is arranged on the raw water storage tank 110, the effluent of the sedimentation tank 150, the effluent of the quartz sand filter column 160, the water inlet and outlet of the ultrafiltration system 30, the water inlet and outlet of the nanofiltration system 40, the water inlet and outlet of the ozone contact filter column 210 and the water inlet and outlet of the activated carbon filter column 220 for detecting whether the turbidity of the filtered water meets the national drinking water standard, an online particle counting monitoring instrument sensor is arranged on the raw water storage tank 110, the effluent of the sedimentation tank 150, the water outlet of the quartz sand filter column 160, the water inlet and outlet of the ultrafiltration system 30, the water inlet and outlet of the nanofiltration system 40, the water inlet and outlet of the ozone contact filter column 210 and the water inlet and outlet of the activated carbon filter column 220 for detecting whether the particles in the filtered water meet the national drinking water standard, an SDI online conductivity monitoring instrument sensor is arranged at the inlet and outlet of the nanofiltration membrane for, the ion concentration or salt content in the water is detected; the pilot system needs to have a PLC (programmable logic controller) meeting the requirements, and a user can monitor and control the equipment and the instrument in real time.

The silica sand filter column 160 includes: the device comprises a cylinder 1610, wherein a cylinder cavity 1620 is arranged in the cylinder 1610, a detachable first filter plate 1630 is arranged on the cylinder 1610, the cylinder cavity 1620 is divided into a filtering cavity 1621 and a drainage cavity 1622 which are arranged up and down by the first filter plate 1630, a bearing layer 1640 is arranged at the bottom of the filtering cavity 1621 and is placed on the first filter plate 1630, and a quartz sand filtering layer 1650 for filtering is arranged above the bearing layer 1640; the upper portion of cylinder 1610 be equipped with the communicating quartz sand filter column water inlet 1660 of filter cavity 1621, the bottom of cylinder 1610 is equipped with first back flush air inlet 1670, first back flush water inlet 1680 and the quartz sand filter column delivery port 1690 of drainage cavity 1622 intercommunication, be equipped with a plurality of first filter element 1631 on the first filter plate 1630 to will pass through water after the quartz sand filter layer 1650 filters lets in the drainage cavity 1622. The quartz sand filter layer 1650 adopts the particle size of

The quartz sand is filled, the filling height is 750mm, and the quartz sand filter layer 1650 can effectively intercept and remove suspended matters, organic matters, colloidal particles, microorganisms, chlorine, odor, partial heavy metal ions and the like in water, and finally achieves the effects of reducing water turbidity and purifying water quality.

The ozone contact filter column 210 comprises a housing 2110, a closed housing cavity 2120 is arranged in the housing 2110, a water inlet 2160 of the ozone contact filter column is arranged at the bottom of the housing 2110, a vent pipe 2130 is connected to the water inlet, a pall ring packing area 2140 is arranged at the bottom of the housing cavity 2120, a water outlet 2170 of the ozone contact filter column is arranged at the upper part of the housing 2110, and a first exhaust gas discharge port 2150 for discharging reacted gas is arranged at the top of the ozone contact filter column 210. The ozone contact filter column 210 is used for sterilizing bacteria in raw water, strong oxidation is performed on the bacteria and pathogens in wastewater through ozone, a plurality of pall rings are arranged in the pall ring packing area 2140, the pall rings have the advantages of large flux, small resistance, high separation efficiency, large operation elasticity and the like, and under the same reduced pressure, the treatment capacity can be more than 50% larger than that of Raschig rings. When the treatment capacity is the same, the pressure reduction can be reduced by half, the mass transfer efficiency can be improved by about 20 percent, and the reaction rate of raw water and ozone is improved.

The activated carbon filter column 220 comprises a filter column body 2210, wherein a body cavity 2220 is arranged in the filter column body 2210, a detachable second filter plate 2230 is arranged on the body cavity 2220, the body cavity 2220 is divided into a water filtering cavity 2221 and a water outlet cavity 2222 which are arranged up and down by the second filter plate 2230, a sand cushion 2240 which is placed on the second filter plate 2230 is arranged at the bottom of the water filtering cavity 2221, an activated carbon filter layer 2250 for filtering is arranged above the sand cushion 2240, an activated carbon filter column water inlet 2211 which is communicated with the water filtering cavity 2221 is arranged at the upper part of the activated carbon filter column body 2210, and a second tail gas discharge port 2260 for discharging filtered gas is further arranged at the top of the activated carbon filter column body 2210; the bottom of the activated carbon filter column body 2210 is provided with a second back-washing air inlet 2270, a second back-washing water inlet 2280 and an activated carbon filter column water outlet 2212 which are communicated with the water outlet cavity 2222, and the first filter plate 1630 is provided with a plurality of second filter elements 2231 so as to introduce the water filtered by the activated carbon filter layer 2250 into the water outlet cavity 2222. The second filter sheet 2230 is an organic glass filter sheet, the second filter element 2231 is a filter head with a long handle, and has a good filtering function, and the active carbon filter layer 2250 adopts a particle size of

The biological carbon is filled, the filling height is 600mm, and the sand cushion layer 2240 adopts the particle size of

The filling height of the quartz sand is 200mm, and the activated carbon has high adsorption speed and purityHigh degree of digestion, difficult powder removal and long service life, and can effectively remove odor, chlorine, cyanogen, various heavy metal ions and other harmful substances and decolor. Has effects of purifying water, removing odor and odor, and improving water purity. The method has the advantages that various impurities in water such as chlorine, phenol, arsenic, lead, cyanide, pesticides and other harmful substances are removed, the content of bromate is controlled, quartz sand is used for filtering the activated carbon or suspended matters attached to raw water, the cleanliness of the raw water is kept, and large particles are avoided.

The backwashing system is used for backwashing the UF ultrafiltration device 320 and the NF nanofiltration device 420 and comprises a cleaning water tank 610, a second cleaning pump 620 and a second security filter 630; a water inlet of the second cleaning pump 620 is respectively communicated with the cleaning water tank 610 and the NF water production tank 430 through a pipeline, a pipeline communicated between an outlet of the second cleaning pump 620 and an inlet of the second security filter 630 is provided with a fourth check valve 640 for protecting the second cleaning pump 620, a water outlet of the second security filter 630 is respectively communicated with the NF nanofiltration device 420 and the activated carbon filtration column 220 through pipelines, and a fifth check valve 650 and a high pressure pump 660 are sequentially arranged between a water delivery port of the second security filter 630 and a water inlet of the NF membrane; the backwashing system further comprises an air compressor 710, an air storage tank 720, a second backwashing pump 730 and a dosing device 740, wherein an air outlet of the air compressor 710 is connected with the air storage tank 720 through an air pipe, an air outlet of the air storage tank 720 is respectively communicated with the UF ultrafiltration device 320, the quartz sand filter column 160 and the activated carbon filter column 220, the second backwashing pump 730 is connected with a water outlet of the NF water production tank 430 through a pipeline, a water outlet of the second backwashing pump 730 and a drug outlet of the dosing device 740 are connected to a water outlet of the UF ultrafiltration device 320 through a pipeline, and a dosing pump 741 for controlling the dosing rate is further arranged on the dosing device 740; the backwashing system further comprises a third backwashing pump 810 arranged on one of the first water outlets 1710, wherein the water outlet of the third backwashing pump 810 is communicated with the quartz sand filter column 160 through a pipeline, and a sixth check valve 820 is arranged on the pipeline. The cleaning water tank 610 is pumped to the second security filter 630 by the second cleaning pump 620, the second security filter 630 is used for filtering water in the cleaning water tank 610, a fourth check valve 640 for preventing water backflow is arranged between the second security filter 630 and the second cleaning pump 620, the water filtered in the second security filter 630 is sent to the NF nanofiltration device 420 by the high-pressure pump 660 for backwashing the NF nanofiltration device 420, the cleaned water is discharged to a floor drain by a pipeline, the floor drain sends waste water to a waste water pipeline, and the high-pressure pump 660 and the second security filter 630 are further provided with a fifth check valve 650 for preventing water backflow; the air compressor 710 compresses air and then conveys the compressed air to the air storage tank 720 through a pipeline, an air outlet which is respectively connected with the UF ultrafiltration device 320, the quartz sand filter column 160 and the active carbon filter column 220 through pipelines is arranged on the air storage tank 720, the compressed air blows up particulate matters and suspended matters attached to the ultrafiltration membrane assembly 3210, the quartz sand filter layer 1650 and the active carbon filter layer 2250, the UF ultrafiltration device 320 is also provided with a dosing device 740 for dosing and cleaning, cleaning medicines for cleaning the ultrafiltration membrane assembly 3210 are placed in the dosing device 740 and controlled through a dosing metering pump 741, the UF ultrafiltration device 320 is cleaned through water conveyed by the second security filter 630, and the cleaning medicines can be Motian UF-100 ultrafiltration dirt blocking/dispersing agent, Motian UF-100 ultrafiltration dirt blocking/dispersing agent, One or more of MotianUF-410, MotianUF-440 and MotianUF-440 can effectively remove metal hydroxide dirt, sulfate, particle pollution, organic dirt, biological dirt, a small amount of oil dirt and phycomycetes on the membrane surface of the ultrafiltration membrane module 3210, form an effective protective layer, prevent membrane filaments from becoming brittle, damaged and broken filaments due to combination with substances in raw water, stabilize the quality of produced water, ensure the operation safety of the ultrafiltration membrane module 3210, effectively control the biochemical degradation effect of bacteria, algae and biological slime on the membrane filaments, effectively prolong the cleaning period and prolong the service life of the membrane filaments; a third backwash pump 810 is arranged between the first water outlet 1710 and the quartz sand filter column 160, the third backwash pump 810 pumps water in the first intermediate water tank 170 to the quartz sand filter column 160, and high-pressure air conveyed to the quartz sand filter column 160 by the gas storage tank 720 is matched to perform backwashing on a quartz sand filter layer 1650 in the quartz sand filter column 160, so that the number of times of reuse is increased, and the cost is saved.

Each pipeline is provided with a control valve for controlling opening and closing, and the control valve is one of a butterfly valve, a plug valve, a gate valve and a ball valve. The pipeline is provided with a control valve for controlling the flowing direction of water in the system to realize the switching among ultrafiltration, nanofiltration, active carbon filtration and ozone filtration.

The bottoms of the raw water storage tank 110, the reaction tank 130, the flocculation tank 140, the sedimentation tank 150, the ozone contact filter column 210, the activated carbon filter column 220, the UF water production tank 330, the ozone generator 50, the gas storage tank 720 are connected with a plant sewage pipe network 910, the NF nanofiltration device 420, the NF water production tank 430 and the cleaning water tank 610 are discharged to the plant sewage pipe network 910 through a floor drain 930, and the plant sewage pipe network 910 is connected with the plant sewage pipe network 910; and the quartz sand filter column 160, the activated carbon filter column 220, the UF ultrafiltration device 320 and the NF water production tank 430 are also provided with a drain pipe 920 for supplying water to the outside.

The UF ultrafiltration device 320 is composed of an ultrafiltration membrane component 3210, the filtration mode is an external pressure type, the membrane aperture of the ultrafiltration membrane is 20-1000A degrees, the operation pressure is 1 x 10^4 Pa-6 x 10^5Pa, and the material of the ultrafiltration membrane is polyacrylonitrile.

The NF nanofiltration device 420 is formed by connecting at least three nanofiltration membranes 4210 in series through a pipeline, the membrane material of the nanofiltration membranes 4210 is polyamide, the diameter of micropores on the surface of the nanofiltration membranes is 1-2 nm, the molecular weight of the intercepted organic matters is 150-500, the capability of intercepting soluble salts is 2-98%, and the working pressure is 3.5-30 bar. The three nanofiltration membranes 4210 can be connected by adopting parallel pipelines, and are simultaneously filtered by the three nanofiltration membranes 4210, so that the filtering efficiency is improved, or the nanofiltration membranes 4210 are connected in series from front to back through the pipelines, so that triple filtering is realized, and the filtering effect is improved.

The sedimentation tank 150 comprises a water distribution area 1510 and an inclined tube sedimentation area 1520 which are arranged on the left and right, the water distribution area 1510 is communicated with the flocculation tank 140 through a pipeline, a double-row mud bucket 1521 is arranged at the bottom of the inclined tube sedimentation area 1520, an inclined tube sedimentation device 1522 for filtering is arranged in the middle of the inclined tube sedimentation area 1520, a third baffle 1523 is arranged between the water distribution area 1510 and the inclined tube sedimentation area 1520, a plurality of through holes 1524 for throttling are arranged at the bottom of the third baffle 1523, the included angle between the third baffle 1523 and the horizontal plane is 60 degrees, a water collection overflow groove 1530 is further arranged on the right side of the inclined tube sedimentation area 1520, and the water collection overflow groove 1530 is communicated with the quartz sand filter column 160 through a pipeline. The water distribution area 1510 is arranged between the inclined tube settling area 1520 and the second flocculation tank 1420 and is used for buffering water flow between the second flocculation tank 1420 and the inclined tube settling area 1520, meanwhile, the third baffle 1523 is arranged between the water distribution area 1510 and the inclined tube settling area 1520, the included angle between the third baffle 1523 and the horizontal plane is 60 degrees, the third baffle 1523 faces the second flocculation tank 1420, a plurality of through holes 1524 are further arranged on the third baffle 1523, water discharged from the through holes 1524 faces the inclined tube settling device 1522, the water flowing into the water distribution area 1510 is prevented from impacting the double-row sludge bucket 1521, the sludge settling in the sludge bucket is influenced, and the problem that the effect of settling treatment is not ideal is solved; the third baffle 1523 is provided with 18 through holes 1524, the through holes 1524 are arranged in an upper row and a lower row, the number of the through holes 1524 in any row is 8, the diameter of each through hole 1524 is 3cm, and the through holes 1524 arranged in the upper row and the lower row are spaced by 4 cm. The third baffle 1523 is used for isolating the water distribution area 1510 from the inclined tube settling area 1520, and the through holes 1524 are used for controlling the water outlet rate, so that the situation that the sediment settled in the double-row mud bucket 1521 cannot be accumulated due to overlarge water flow is avoided; the pipe chute deposits device 1522 and comprises a plurality of interconnect's pipe chute, the hexagonal honeycomb pipe that the pipe chute was formed for adopting the plastics suppression, has more mouth of pipe, can realize porous drainage, because water in the pipe chute deposit zone 1520 is carried to from bottom to top in the overflow launder 170 that catchments, consequently silt in the pipe chute deposit zone 1520 can with pipe chute deposits device 1522 collides when water flows, and through pipe chute deposits device 1522's wall body sinks to double mud fill 1521, is discharged, sedimentation tank 150 is used for doing the fourth filtration to the raw water.

A mixing reactor 1310 for stirring is arranged in the reaction tank 130, the mixing reactor 1310 comprises a rotating motor 1311, an output shaft of the rotating motor 1311 is provided with a rotating shaft 1312, the rotating shaft 1312 extends into the reaction zone 130, the bottom of the rotating shaft 1312 is provided with a stirrer 1313, and the stirrer 1313 is a double-blade impeller; the bottom of the reaction tank 130 is provided with a first pipeline 1320 communicated with the first flocculation tank 140. When agitator 1310 stirs, the silt of aquatic is followed agitator 1310 is rotatory the back downward sediment extremely locate in the first bagger 180 of reaction tank 130 bottom, improved the efficiency of clearance aquatic silt, first pipeline 1320 is used for with the water after first stirring in the reaction tank 1300 lets in first flocculation basin 141 carries out the secondary sedimentation, reaction tank 130 is used for doing the primary filtration to the raw water.

The flocculation tank 140 comprises a first flocculation tank 1410 and a second flocculation tank 1420 which are communicated through a pipeline, and a first reaction stirrer 1411 and a second reaction stirrer 1421 for accelerating stirring are respectively arranged in the first flocculation tank 1410 and the second flocculation tank 1420; the first reaction stirrer 1411 comprises a first rotating motor 1412, a first rotating shaft 1413 arranged on an output shaft of the first rotating motor 1412, and a plurality of first impeller paddles 1414 arranged on the first rotating shaft 1413, wherein the first rotating shaft 1413 extends into the first flocculation tank 1410, the first impeller paddles 1414 are arranged at intervals up and down, first baffles 1415 are arranged on four inner side surfaces of the first flocculation tank 1410, and a second pipeline 1416 and a third pipeline 1417 for communicating with the second flocculation area 1420 are further arranged on the upper portion of the first flocculation tank 1410; a second reaction stirrer 1421 for stirring is further arranged in the second flocculation tank 1420, the second reaction stirrer 1421 includes a second rotating motor 1422, a second rotating shaft 1423 arranged on an output shaft of the second rotating motor 1422, and a plurality of second impeller paddles 1424 arranged on the second rotating shaft 1423, the second rotating shaft 1425 extends into the second flocculation tank 1420, the second impeller paddles 1424 are arranged at intervals from top to bottom, second baffles 1425 are arranged on four inner side surfaces of the second flocculation tank 1420, and a fourth pipeline 1426 and a fifth pipeline 1427 for communicating with the sedimentation tank 150 are further arranged at the bottom of the second flocculation tank 1420. When the first reaction stirrer 1411 is used for stirring, silt in water moves and collides with the first baffle 1415, the silt is precipitated downwards into the second mud bucket 190 arranged at the bottom of the first flocculation tank 1410 through the path of the first baffle 1415, the second pipeline 1416 and the third pipeline 1417 are used for conveying the water subjected to stirring and precipitation to the second flocculation tank 1420, and the first reaction stirrer 1411 is provided with the two first impeller paddles 1413 which are arranged at intervals up and down, so that a better stirring and precipitation effect is achieved, a larger stirring range is achieved, and the stirring and precipitation efficiency is improved; when second reaction agitator 1421 stirs, the silt motion of aquatic and with second baffle 1425 collides, and the route that silt passes through second baffle 1425 is precipitated downwards to locate in the second hopper 190 of second flocculation basin 1420 bottom, fourth pipeline 1426 and fifth pipeline 1427 are used for sending the water after the stirring is depositd to sedimentation tank 160, set up two in this embodiment second impeller paddle 1424, and the interval sets up from top to bottom, have better stirring sedimentation effect, have improved the efficiency of stirring sediment, first flocculation basin 1410 and second flocculation basin 1420 are used for being the second and the third filtration to the raw water respectively.

As described above, the embodiments of the present application have been described in detail, but the present application is not limited to the above embodiments. Even if various changes are made in the present application, the protection scope of the present application is still included.

Claims (10)

1. A water purification treatment system, comprising: a pretreatment system (10) for primary filtration treatment of raw water, an advanced treatment system (20) for adsorption and oxidation of raw water, an ultrafiltration system (30) for advanced treatment of raw water, and a nanofiltration system (40);

the pretreatment system (10) comprises a raw water storage tank (110), a raw water lift pump (120), a reaction tank (130), a flocculation tank (140), a sedimentation tank (150), a quartz sand filter column (160) and a first intermediate water tank (170), which are sequentially connected and communicated through pipelines;

the device comprises a raw water storage tank (110), a raw water lifting pump (120) and a quartz sand filter column (160), wherein the raw water storage tank (110) is provided with a wastewater inlet pipe for guiding wastewater to be treated to enter a reaction tank (130), the pipeline between the reaction tank (130) and the raw water storage tank (110) is provided with a raw water lifting pump (120) for controlling the wastewater inlet rate and adjusting the water pressure, the bottom of the quartz sand filter column (160) is provided with a quartz sand filter column water outlet (1690) for connecting a drain pipe to discharge water, a pipeline communicated with a first intermediate water tank (170) is further arranged between the quartz sand filter column water outlet (1690) and the drain pipe, and the first intermediate water tank (170) is provided with a plurality of first water outlets (;

the depth processing system (20) comprises: a plurality of ozone contact filtering columns (210) and activated carbon filtering columns (220) which are communicated with each other are sequentially connected through pipelines;

a plurality of in first delivery port (1710) be equipped with ozone contact pool elevator pump (230) on first delivery port (1710), be connected with gas-liquid mixture pump (240) behind ozone contact pool elevator pump (230), just ozone contact pool elevator pump (230) with be equipped with first check valve (250) between gas-liquid mixture pump (240), the water inlet of gas-liquid mixture pump (240) with the delivery port of ozone contact pool elevator pump (230) is connected, the air inlet of gas-liquid mixture pump (240) is connected with ozone generator (50), the delivery port of gas-liquid mixture pump (240) is connected respectively ozone contact filter column water inlet (2160) of ozone contact filter column (210), each ozone contact filter column delivery port (2170) of ozone contact filter column (210) is connected to the active carbon filter column water inlet (2211) of active carbon filter column (220) through the pipeline, the activated carbon filtering column (220) is also provided with an activated carbon filtering column water outlet (2212) for draining water, and the activated carbon filtering column water outlet (2212) is connected with a drain pipe for draining water;

the ultrafiltration system (30) comprises a UF inlet security filter (310), a UF ultrafiltration device (320) and a UF production water tank (330) which are sequentially connected and communicated through a pipeline;

the water inlet of the UF water inlet security filter (310) is communicated with one first water outlet (1710) of the first water outlets (1710) through a pipeline, a UF water inlet pump (340) for adjusting the water outlet rate and pressure and a second check valve (350) for preventing water from flowing back are arranged on the pipeline, the water outlet of the UF water inlet security filter (310) is connected with the water inlet of an ultrafiltration device, and the water outlet of the UF ultrafiltration device (320) is communicated with the UF water production tank (330) through a pipeline;

the nanofiltration system (40) comprises: the first security filter (410), the NF nanofiltration device (420) and the NF water production tank (430) are sequentially connected and communicated through pipelines;

the water inlet of the first safety filter (410) is communicated with the water outlet of the UF water production tank (330) through a pipeline, the pipeline is further provided with a booster pump (440) used for increasing water inlet pressure, the water outlet of the first safety filter (410) is connected with the NF nanofiltration device (420) through a pipeline, the water outlet of the NF nanofiltration device (420) is connected with the NF water production tank (430) through a common pipeline, and the pipeline is further provided with a third check valve (450);

wherein, a first surpassing pipe leading to the first middle water tank (170) is respectively arranged on the flocculation tank (140) and the sedimentation tank (150), and a second surpassing pipe is also arranged between the water outlet of the UF ultrafiltration device (320) and the water inlet (2160) of the ozone contact filter column.

2. The water purification treatment system of claim 1, wherein: the silica sand filter column (160) includes: the device comprises a cylinder (1610), wherein a cylinder cavity (1620) is arranged in the cylinder (1610), a detachable first filter plate (1630) is arranged on the cylinder (1610), the cylinder cavity (1620) is divided into a filtering cavity (1621) and a drainage cavity (1622) which are arranged up and down by the first filter plate (1630), a bearing layer (1640) which is placed on the first filter plate (1630) is arranged at the bottom of the filtering cavity (1621), and a quartz sand filter layer (1650) for filtering is arranged above the bearing layer (1640); the upper portion of cylinder (1610) be equipped with filter cavity (1621) communicating quartz sand filter column water inlet (1660), the bottom of cylinder (1610) is equipped with first back flush air inlet (1670), first back flush water inlet (1680) and quartz sand filter column delivery port (1690) of drainage cavity (1622) intercommunication, be equipped with a plurality of first filter element (1631) on first filter plate (1630), in order to pass through water after quartz sand filter layer (1650) filters lets in drainage cavity (1622).

3. The water purification treatment system of claim 1, wherein: the ozone contact filter column (210) comprises a shell (2110), a closed shell cavity (2120) is arranged in the shell (2110), a water inlet (2160) of the ozone contact filter column is formed in the bottom of the shell (2110), a vent pipe (2130) is connected to the water inlet, a pall ring filling area (2140) is formed in the bottom of the shell cavity (2120), a water outlet (2170) of the ozone contact filter column is formed in the upper portion of the shell (2110), and a first tail gas discharge port (2150) used for discharging reacted gas is formed in the top of the ozone contact filter column (210).

4. The water purification treatment system of claim 1, wherein: the activated carbon filter column (220) comprises a filter column body (2210), a body cavity (2220) is arranged in the filter column body (2210), a detachable second filter plate (2230) is arranged on the body cavity (2220), the second filter plate (2230) divides the body cavity (2220) into a water filtering cavity (2221) and a water outlet cavity (2222) which are arranged up and down, a sand cushion layer (2240) which is placed on the second filter plate (2230) is arranged at the bottom of the water filtering cavity (2221), an activated carbon filter layer (2250) for filtering is arranged above the sand cushion layer (2240), an activated carbon filter column water inlet (2211) which is communicated with the water filtering cavity (2221) is arranged at the upper part of the activated carbon filter column body (2210), and a second tail gas discharge port (2260) for discharging filtered gas is further arranged at the top of the activated carbon filter column body (2210); the bottom of active carbon filter column body (2210) is equipped with go out second back flush air inlet (2270), second back flush water inlet (2280) and active carbon filter column delivery port (2212) of water cavity (2222) intercommunication, be equipped with a plurality of second filter element (2231) on first filter plate (1630) to will pass through water after active carbon filter layer (2250) filters lets in go out in water cavity (2222).

5. The water purification treatment system of claim 1, wherein: the backwashing system is used for backwashing the UF ultrafiltration device (320) and the NF nanofiltration device (420), and comprises a cleaning water tank (610), a second cleaning pump (620) and a second security filter (630);

a water inlet of the second cleaning pump (620) is respectively communicated with the cleaning water tank (610) and the NF water production tank (430) through a pipeline, a pipeline communicated between an outlet of the second cleaning pump (620) and an inlet of the second security filter (630) is provided with a fourth check valve (640) for protecting the second cleaning pump (620), a water outlet of the second security filter (630) is respectively communicated with the NF nanofiltration device (420) and the activated carbon filtration column (220) through pipelines, and a fifth check valve (650) and a high-pressure pump (660) are sequentially arranged between a water delivery port of the second security filter (630) and a water inlet of the NF membrane;

the backwashing system further comprises an air compressor (710), an air storage tank (720), a second backwashing pump (730) and a dosing device (740), an air outlet of the air compressor (710) is connected with the air storage tank (720) through an air pipe, an air outlet of the air storage tank (720) is respectively communicated with the UF ultrafiltration device (320), the quartz sand filter column (160) and the active carbon filter column (220), the second backwashing pump (730) is connected with a water outlet of the NF water production tank (430) through a pipeline, a water outlet of the second backwashing pump (730) and a drug outlet of the dosing device (740) are connected to a water outlet of the UF ultrafiltration device (320) through a pipeline, and the dosing device (740) is further provided with a dosing metering pump (741) for controlling the dosing rate;

the backwashing system further comprises a third backwashing pump (810) arranged on one of the first water outlets (1710) of the plurality of first water outlets (1710), the water outlet of the third backwashing pump (810) is communicated with the quartz sand filter column (160) through a pipeline, and a sixth check valve (820) is arranged on the pipeline.

6. The water purification treatment system of claims 1 to 5, wherein: each pipeline is provided with a control valve for controlling opening and closing, and the control valve is one of a butterfly valve, a plug valve, a gate valve and a ball valve.

7. The water purification treatment system of claim 1, wherein: the UF ultrafiltration device (320) is composed of an ultrafiltration membrane component (3210), the filtration mode is external pressure type, the membrane aperture of the ultrafiltration membrane is 20-1000A degrees, the operation pressure is 1 x 10^4 Pa-6 x 10^5Pa, and the material of the ultrafiltration membrane is polyacrylonitrile;

the NF nanofiltration device (420) is formed by connecting at least three nanofiltration membranes (4210) in series through a pipeline, the membrane material of the nanofiltration membranes (4210) is polyamide, the diameter of micropores on the surface of the nanofiltration membranes is 1-2 nm, the molecular weight of the intercepted organic matters is 150-500, the capability of intercepting soluble salts is 2% -98%, and the working pressure is 3.5-30 bar.

8. The water purification treatment system of claim 1, wherein: the sedimentation tank (150) comprises a water distribution area (1510) and an inclined tube sedimentation area (1520) which are arranged on the left and right, the water distribution area (1510) is communicated with the flocculation tank (140) through a pipeline, double rows of mud hoppers (1521) are arranged at the bottom of the inclined tube sedimentation area (1520), an inclined tube sedimentation device (1522) for filtering is arranged in the middle of the inclined tube sedimentation area (1520), a third baffle (1523) is arranged between the water distribution area (1510) and the inclined tube sedimentation area (1520), a plurality of through holes (1524) for throttling are formed in the bottom of the third baffle (1523), an included angle between the third baffle (1523) and the horizontal plane is 60 degrees, a water collection overflow groove (1530) is further arranged on the right side of the inclined tube sedimentation area (1520), and the water collection overflow groove (1530) is communicated with the quartz sand filter column (160) through a pipeline.

9. The water purification treatment system of claim 1, wherein: a mixing reactor (1310) for stirring is arranged in the reaction tank (130), the mixing reactor (1310) comprises a rotating motor (1311), an output shaft of the rotating motor (1311) is provided with a rotating shaft (1312), the rotating shaft (1312) extends into the reaction zone (130), the bottom of the rotating shaft (1312) is provided with a stirrer (1313), and the stirrer (1313) is a double-blade impeller; the bottom of the reaction tank (130) is provided with a first pipeline (1320) communicated with the first flocculation tank (140).

10. The water purification treatment system of claim 1, wherein: the flocculation tank (140) comprises a first flocculation tank (1410) and a second flocculation tank (1420) which are communicated through a pipeline, and a first reaction stirrer (1411) and a second reaction stirrer (1421) which are used for accelerating stirring are respectively arranged in the first flocculation tank (1410) and the second flocculation tank (1420);

the first reaction stirrer (1411) comprises a first rotating motor (1412), a first rotating shaft (1413) arranged on an output shaft of the first rotating motor (1412), and a plurality of first impeller paddles (1414) arranged on the first rotating shaft (1413), wherein the first rotating shaft (1413) extends into the first flocculation tank (1410), the first impeller paddles (1414) are arranged at intervals up and down, four inner side surfaces of the first flocculation tank (1410) are respectively provided with a first baffle (1415), and the upper part of the first flocculation tank (1410) is also provided with a second pipeline (1416) and a third pipeline (1417) which are used for being communicated with the second flocculation area (1420);

the second flocculation tank (1420) is internally provided with a second reaction stirrer (1421) for stirring, the second reaction stirrer (1421) comprises a second rotating motor (1422), a second rotating shaft (1423) arranged on an output shaft of the second rotating motor (1422), and a plurality of second impeller paddles (1424) arranged on the second rotating shaft (1423), the second rotating shaft (1425) extends into the second flocculation tank (1420), the second impeller paddles (1424) are arranged at intervals from top to bottom, second baffles (1425) are arranged on four inner side surfaces of the second flocculation tank (1420), and the bottom of the second flocculation tank (1420) is further provided with a fourth pipeline (1426) and a fifth pipeline (1427) which are communicated with the sedimentation tank (150).

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