CN113754114A - Circulating water blowdown water processing system - Google Patents
Circulating water blowdown water processing system Download PDFInfo
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- CN113754114A CN113754114A CN202111056731.4A CN202111056731A CN113754114A CN 113754114 A CN113754114 A CN 113754114A CN 202111056731 A CN202111056731 A CN 202111056731A CN 113754114 A CN113754114 A CN 113754114A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 250
- 239000010865 sewage Substances 0.000 claims abstract description 81
- 238000003756 stirring Methods 0.000 claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000003814 drug Substances 0.000 claims abstract description 26
- 238000005086 pumping Methods 0.000 claims abstract description 19
- 238000005352 clarification Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims description 71
- 238000000108 ultra-filtration Methods 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 19
- 230000000750 progressive effect Effects 0.000 claims description 19
- 238000001556 precipitation Methods 0.000 claims description 15
- 238000001223 reverse osmosis Methods 0.000 claims description 13
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 12
- 239000000920 calcium hydroxide Substances 0.000 claims description 12
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 12
- 238000003475 lamination Methods 0.000 claims description 12
- 238000011001 backwashing Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000020 calcium bicarbonate Inorganic materials 0.000 claims description 3
- 239000000701 coagulant Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 239000008119 colloidal silica Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000012510 hollow fiber Substances 0.000 claims description 3
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
- C02F5/06—Softening water by precipitation of the hardness using calcium compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5227—Processes for facilitating the dissolution of solid flocculants in water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/60—Silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a circulating sewage treatment system which comprises a sewage pretreatment module, wherein the circulating sewage treatment system is started and starts to send a sewage pumping signal and a pretreatment signal to an adjusting tank, a circulating stirring clarification module is used for sending a water inlet stirring signal to a stirring tank after the pretreatment is finished, and treated water enters a water outlet pipeline to transmit the circulating signal. The quantitative dosing unit of the sewage pretreatment module is arranged, so that the control of the adding time of the liquid medicine is realized by utilizing the water level detection function, the waste phenomenon of redundant liquid medicine is avoided under the condition of ensuring the full addition of the liquid medicine in the sewage pretreatment process, in addition, the quantitative circulating re-treatment process of the liquid medicine coming out of the stirring tank can be realized through the sensing control through the sensing action of the water pressure in the pipeline after the stirring clarification process is finished, and the treatment efficiency in the stirring clarification process is improved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a circulating water sewage treatment system.
Background
Along with the development of economic society, the demand pressure of urban water resources is gradually increased, the phenomenon of water pollution is more serious, the fundamental reason is that the social cycle of water exceeds the bearable range of the natural cycle of water, and in order to solve the problem, only the natural motion law of water is understood, the water resources are reasonably used, and further the good water environment for maintaining or recovering cities and drainage basins is an effective way for sustainable utilization of the water resources, so that the requirement that the water utilization efficiency is improved from a one-way open water utilization mode of water taking, water conveying and discharging to a feedback type circulation flow for saving water, water conveying and available water regeneration is required, the improvement of the utilization efficiency of the water is the conversion of the great water utilization mode, and the enhancement of the sewage regeneration and utilization is a key step in the conversion process.
In the in-process of stirring processing at circulating water sewage discharge system in the past, the sewage composition is complicated, not only contain a large amount of suspended solids and organic matter, still contain a large amount of colloids, preliminary mixing clarification treatment adopts water pressure control to circulate mostly, the number of cycles is less, the preliminary working procedure deposits the insufficient phenomenon of processing, in addition, at the in-process that carries out sewage preliminary treatment, the liquid medicine addition adopts manual control mostly, put more can lead to the waste phenomenon of liquid medicine, put less then can have the insufficient phenomenon of reaction of liquid medicine and sewage.
In order to solve the problems, a circulating water sewage treatment system is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a circulating water sewage treatment system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a circulating water sewage treatment system comprising:
the sewage pretreatment module starts a circulating sewage treatment system and starts to send a sewage pumping signal and a pretreatment signal to the regulating tank,
the circulating stirring clarification module is used for sending a water inlet stirring signal to the stirring tank by the circulating sewage treatment system after the pretreatment is finished, and transmitting a circulating signal by the treated water liquid entering a water outlet pipeline;
the progressive filtering module is used for transmitting progressive filtering processing signals to the filtering device and acquiring filtering number information of particles by the circulating water sewage system when the initially processed water liquid enters the filtering device;
and the reverse osmosis circulating water supply module is used for performing final filtration on the treated water after the primary filtration under the action of the reverse osmosis membrane, and when the circulating water sewage system detects that water passes through the water outlet pipeline of the reverse osmosis device, the circulating water sewage system starts to transmit a directional water supply signal to the water supply shunting device and performs a directional water supply process.
Preferably, the sewage pretreatment module comprises a sewage pumping unit and a quantitative dosing unit, the sewage pumping unit receives a sewage pumping signal and a pretreatment signal sent by circulating sewage, and the first pumping pump starts to pump water in the sewage field into the regulating tank;
when the water in the adjusting tank reaches a certain water level and stops, the water level sensor transmits a water level signal to the circulating water sewage system for signal processing, the water level signal is converted into an opening time signal of the medicine adding device, and the medicine adding device is opened after receiving the opening time signal, so that the quantitative adding process of the liquid medicine is carried out.
Preferably, the circulation clarification module comprises a stirring clarification unit and a water outlet circulation unit, the stirring tank receives a water inlet stirring signal, the second pump starts to work, the pretreated water liquid is pumped until entering the stirring tank, when the water level rises to the lowest water level required by stirring, a sensor arranged in the stirring tank starts to transmit a stirring starting signal, and at the moment, the stirring tank receives the stirring starting signal and starts to stir;
the water outlet circulating device transmits a water pressure signal through a water pressure sensor arranged in the water outlet pipeline, the water pressure sensor is arranged at the interface end of the water outlet pipeline and the stirring pool, and when the water pressure sensor receives the water pressure signal, the water pressure sensor processes the water pressure signal and transmits the circulating signal to a circulating processing device arranged at the tail end of the water outlet pipeline.
Preferably, the progressive filtering module comprises an SK backwash filtering unit and an ultrafiltration membrane filtering unit, the SK backwash filtering unit and the ultrafiltration membrane filtering unit receive progressive filtering signals and perform signal processing, the SK backwash device preferentially starts a filtering process, and the ultrafiltration membrane filtering unit receives the progressive filtering signals and converts the working stop state into a preparation state.
Preferably, the reverse osmosis circulating water supply module comprises a water tank water supply unit and a boiler water supply unit, when the water diversion device receives a directional water supply signal, the water diversion device preferentially transmits a valve conduction signal to a valve port of a water tank pipeline, the water tank pipeline valve starts to be opened after receiving the valve conduction signal, when the water level in the water tank reaches a fixed point, a sensor arranged in the water tank transmits a valve closing signal and a boiler water supply signal to the water tank pipeline valve, at the moment, the boiler pipeline valve receives the boiler water supply signal to conduct, and the boiler pipeline starts to supply water.
Preferably, the pretreatment involves the reaction formula:
water softening treatment;
Ca(HC03)2+Ca(OH)2＝2CaC03(precipitation) +2H2O；
Mg(HC03)2+Ca(OH)2＝2CaC03(precipitation) + Mg (OH)2+2H2O；
CO in water2Removing gas;
CO2+Ca(OH)2＝2CaC03(precipitation) + H2O；
Removing the colloidal silica in the water;
H2Si03+Ca(OH)2＝CaSi03(precipitation) + H2O；
Excess coagulant is neutralized, and the coagulation effect in the reaction process is enhanced;
4Fe2++4(OH)-+O2+2H2O＝4Ca2++4Fe(OH)3(precipitation).
Preferably, the surface of the filtration lamination inside the SK filtration rotor device is provided with fine grooves, the directions of the grooves of adjacent laminations are different in angle, and the filtration precision of the filtration lamination is determined by the specification and the number of designed groove crossing points.
Preferably, the ultrafiltration membrane in the ultrafiltration device is subjected to a water inlet process from hollow fibers in the ultrafiltration membrane, an outlet process from the outer wall to the inner wall by an internal pressure method, and water flow collection is performed through an outlet pipe of the ultrafiltration device.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the setting of the quantitative dosing unit of the sewage pretreatment module, the control of the adding time of the liquid medicine is realized by utilizing the water level detection function, so that the waste phenomenon of redundant liquid medicine is avoided under the condition of ensuring the full addition of the liquid medicine in the sewage pretreatment process.
2. According to the invention, through the sensing action of the water pressure in the pipeline, after the stirring clarification process is finished, the quantitative circulating re-treatment process of the water liquid discharged from the stirring tank can be achieved through sensing control, and the treatment efficiency in the stirring clarification process is improved.
Drawings
FIG. 1 is a schematic view of a system flow of a circulating sewage disposal system according to the present invention;
FIG. 2 is a schematic view of a sewage pretreatment module of a circulating sewage treatment system according to the present invention;
FIG. 3 is a schematic view of a circulating stirring clarification module of a circulating sewage treatment system provided by the invention;
FIG. 4 is a schematic view of a progressive filtering module of a circulating sewage disposal system according to the present invention;
fig. 5 is a schematic diagram of a reverse osmosis circulating water supply module of a circulating sewage disposal system according to the present invention.
Detailed Description
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 of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 5, a circulating water sewage treatment system includes:
the sewage pretreatment module starts a circulating sewage treatment system and starts to send a sewage pumping signal and a pretreatment signal to the regulating tank,
the circulating stirring clarification module is used for sending a water inlet stirring signal to the stirring tank by the circulating sewage treatment system after the pretreatment is finished, and transmitting a circulating signal by the treated water liquid entering a water outlet pipeline;
the progressive filtering module is used for transmitting progressive filtering processing signals to the filtering device and acquiring filtering number information of particles by the circulating water sewage system when the initially processed water liquid enters the filtering device;
and the reverse osmosis circulating water supply module is used for performing final filtration on the treated water after the primary filtration under the action of the reverse osmosis membrane, and when the circulating water sewage system detects that water passes through the water outlet pipeline of the reverse osmosis device, the circulating water sewage system starts to transmit a directional water supply signal to the water supply shunting device and performs a directional water supply process.
According to the observation of fig. 2, the sewage pretreatment module comprises a sewage pumping unit and a quantitative dosing unit, the sewage pumping unit receives a sewage pumping signal and a pretreatment signal sent by circulating sewage, and the first pumping pump starts to pump water in the sewage field into the regulating tank;
when the water in the adjusting tank reaches a certain water level and stops, the water level sensor transmits a water level signal to the circulating water sewage system for signal processing, the water level signal is converted into an opening time signal of the medicine adding device, and the medicine adding device is opened after receiving the opening time signal, so that the quantitative adding process of the liquid medicine is carried out.
According to the observation shown in the figure 3, the circulation clarification module comprises a stirring clarification unit and a water outlet circulation unit, the stirring tank receives a water inlet stirring signal, the second pump starts to work, the pretreated water liquid is pumped until the pretreated water liquid enters the stirring tank, when the water level rises to the lowest water level required by stirring, a sensor arranged in the stirring tank starts to transmit a stirring starting signal, and at the moment, the stirring tank receives the stirring starting signal and starts to stir;
the water outlet circulating device transmits water pressure signals through a water pressure sensor arranged in the water outlet pipeline, the water pressure sensor is arranged at the interface end of the water outlet pipeline and the stirring pool, and when the water pressure sensor receives the water pressure signals, the water pressure sensor processes the water pressure signals and transmits the circulating signals to a circulating processing device arranged at the tail end of the water outlet pipeline.
According to the observation of fig. 4, the progressive filtering module comprises an SK backwashing filtering unit and an ultrafiltration membrane filtering unit, the SK backwashing filtering unit and the ultrafiltration membrane filtering unit receive progressive filtering signals and process the signals, the SK backwashing device preferentially starts a filtering process, and the ultrafiltration membrane filtering unit receives the progressive filtering signals and converts the working stop state into a preparation state.
According to the observation of fig. 5, the reverse osmosis circulating water supply module comprises a water tank water supply unit and a boiler water supply unit, when the water diversion device receives a directional water supply signal, the water diversion device transmits a valve conduction signal to a valve port of a water tank pipeline preferentially, the water tank pipeline valve starts to be opened after receiving the valve conduction signal, when the water level in the water tank reaches a fixed point, a sensor arranged in the water tank transmits a valve closing signal and a boiler water supply signal to the water tank pipeline valve, at the moment, the boiler pipeline valve receives the boiler water supply signal to conduct, and the boiler pipeline starts to feed water.
From FIG. 2, it can be observed that the pretreatment involves the following reaction formula:
water softening treatment;
Ca(HC03)2+Ca(OH)2＝2CaC03(precipitation) +2H2O；
Mg(HC03)2+Ca(OH)2＝2CaC03(precipitation) + Mg (OH)2+2H2O；
CO in water2Removing gas;
CO2+Ca(OH)2＝2CaC03(precipitation) + H2O；
Removing the colloidal silica in the water;
H2Si03+Ca(OH)2＝CaSi03(precipitation) + H2O；
Excess coagulant is neutralized, and the coagulation effect in the reaction process is enhanced;
4Fe2++4(OH)-+O2+2H2O＝4Ca2++4Fe(OH)3(precipitation).
According to the observation of fig. 4, the surface of the filtering lamination in the SK filtering rotary device is provided with fine grooves, the directions of the grooves of adjacent laminations are different, and the filtering precision of the filtering lamination is determined by the specification and the number of the designed groove cross points.
As can be seen from FIG. 4, the ultrafiltration membrane in the ultrafiltration apparatus performs a water inlet process from the hollow fibers in the ultrafiltration apparatus, a water outlet process from the outer wall to the inner wall by an internal pressure method, and water flow collection is performed through the outlet pipe of the ultrafiltration apparatus.
The advantages of the invention are illustrated by the following:
when the device starts working, the sewage pumping unit receives a sewage pumping signal and a pretreatment signal sent by circulating sewage, the first pumping pump starts to pump water liquid in a sewage field into the regulating tank, when the water in the regulating tank reaches a certain water level and stops, the water level sensor transmits the water level signal into the circulating sewage system for signal processing and simultaneously converts the signal into an opening time signal of the medicine adding device, and the medicine adding device is started after receiving the opening time signal, so that the quantitative adding process of the medicine liquid is carried out;
when the pretreatment process is finished, the stirring tank receives an inflow stirring signal sent by the water circulating sewage system, the second pump starts to work, the pretreated water liquid is pumped until the water liquid enters the stirring tank, when the water level rises to the lowest water level required by stirring, a sensor arranged in the stirring tank starts to transmit a stirring starting signal, the stirring tank receives the stirring starting signal and starts to stir, the water outlet circulating device transmits a water pressure signal through a water pressure sensor arranged in the water outlet pipeline, the water pressure sensor is arranged at the interface end of the water outlet pipeline and the stirring tank, and when the water pressure sensor receives the water pressure signal, the water pressure sensor processes the water pressure signal and transmits the circulating signal to a circulating processing device arranged at the tail end of the water outlet pipeline;
after the water liquid is preliminarily stirred and clarified, the SK backwashing filter unit and the ultrafiltration membrane filter unit receive progressive filtering signals and perform signal processing, wherein the SK backwashing device preferentially starts a filtering process, the ultrafiltration membrane filter unit receives the progressive filtering signals and converts a work stop state into a preparation state, and after the SK backwashing device finishes filtering the water liquid, the ultrafiltration membrane filter unit starts to work and perform fine filtration on the water liquid;
when the progressive filtering is finished and the water diversion device receives a directional water supply signal, the water diversion device transmits a valve conduction signal to a valve port of a water tank pipeline preferentially, the valve of the water tank pipeline starts to be opened after receiving the valve conduction signal, when the water level in the water tank reaches a fixed point, a sensor arranged in the water tank transmits a valve closing signal and a boiler water supply signal to the valve of the water tank pipeline, at the moment, the boiler pipeline valve receives a boiler water supply signal to conduct, and the boiler pipeline starts to supply water;
from what is described herein, it can be seen that: the quantitative dosing unit of the sewage pretreatment module is arranged, so that the control of the adding time of the liquid medicine is realized by utilizing the water level detection function, the waste phenomenon of redundant liquid medicine is avoided under the condition of ensuring the full addition of the liquid medicine in the sewage pretreatment process, in addition, the quantitative circulating re-treatment process of the liquid medicine coming out of the stirring tank can be realized through the sensing control through the sensing action of the water pressure in the pipeline after the stirring clarification process is finished, and the treatment efficiency in the stirring clarification process is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A circulating water sewage treatment system comprising:
the sewage pretreatment module is used for starting the circulating sewage treatment system and starting to send a sewage pumping signal and a pretreatment signal to the regulating tank;
the circulating stirring clarification module is used for sending a water inlet stirring signal to the stirring tank by the circulating sewage treatment system after the pretreatment is finished, and transmitting a circulating signal by the treated water liquid entering a water outlet pipeline;
the progressive filtering module is used for transmitting progressive filtering processing signals to the filtering device and acquiring filtering number information of particles by the circulating water sewage system when the initially processed water liquid enters the filtering device;
and the reverse osmosis circulating water supply module is used for performing final filtration on the treated water after the primary filtration under the action of the reverse osmosis membrane, and when the circulating water sewage system detects that water passes through the water outlet pipeline of the reverse osmosis device, the circulating water sewage system starts to transmit a directional water supply signal to the water supply shunting device and performs a directional water supply process.
2. The system of claim 1, wherein the sewage pretreatment module comprises a sewage pumping unit and a dosing unit, the sewage pumping unit receives a sewage pumping signal and a pretreatment signal sent by the circulating sewage, and the first pumping pump starts to pump water in the sewage field into the regulating tank;
when the water in the adjusting tank reaches a certain water level and stops, the water level sensor transmits a water level signal to the circulating water sewage system for signal processing, the water level signal is converted into an opening time signal of the medicine adding device, and the medicine adding device is opened after receiving the opening time signal, so that the quantitative adding process of the liquid medicine is carried out. The surface of a filtering lamination inside the SK filtering rotary device is provided with fine grooves, the directions of the grooves of adjacent laminations are different in angle, and the filtering precision of the filtering lamination is determined according to the specification and the number of designed groove crossing points.
3. The circulating sewage treatment system of claim 1, wherein the circulating clarification module comprises a stirring clarification unit and a water outlet circulation unit, the stirring tank receives a water inlet stirring signal, the second pump starts to work, the pretreated water liquid is pumped and pressurized until entering the stirring tank, when the water level rises to the lowest water level required by stirring, a sensor arranged in the stirring tank starts to transmit a stirring starting signal, and at the moment, the stirring tank receives the stirring starting signal and starts to stir;
the water outlet circulating device transmits a water pressure signal through a water pressure sensor arranged in the water outlet pipeline, the water pressure sensor is arranged at the interface end of the water outlet pipeline and the stirring pool, and when the water pressure sensor receives the water pressure signal, the water pressure sensor processes the water pressure signal and transmits the circulating signal to a circulating processing device arranged at the tail end of the water outlet pipeline.
4. The circulating water sewage treatment system according to claim 1, wherein the progressive filtering module comprises an SK backwashing filtering unit and an ultrafiltration membrane filtering unit, the SK backwashing filtering unit and the ultrafiltration membrane filtering unit receive progressive filtering signals and perform signal processing, the SK backwashing device preferentially starts a filtering process, and the ultrafiltration membrane filtering device receives the progressive filtering signals and converts the working stop state into a preparation state.
5. The system as claimed in claim 1, wherein the reverse osmosis circulating water supply module comprises a water tank water supply unit and a boiler water supply unit, the water diverter preferentially transmits a valve on signal to a valve port of the water tank pipeline when receiving the directional water supply signal, the valve of the water tank pipeline starts to be opened after receiving the valve on signal, when the water level in the water tank reaches a fixed point, a sensor arranged in the water tank transmits a valve off signal and a boiler water supply signal to the valve of the water tank pipeline, the valve of the boiler pipeline receives the boiler water supply signal and conducts, and the boiler pipeline starts to supply water.
6. The circulating water sewage treatment system of claim 2, wherein the pretreatment involves the following reaction formula:
water softening treatment;
Ca(HC03)2+Ca(OH)2＝2CaC03(precipitation) +2H2O；
Mg(HC03)2+Ca(OH)2＝2CaC03(precipitation) + Mg (OH)2+2H2O；
CO in water2Removing gas;
CO2+Ca(OH)2＝2CaC03(precipitation) + H2O；
Removing the colloidal silica in the water;
H2Si03+Ca(OH)2＝CaSi03(precipitation) + H2O；
Excess coagulant is neutralized, and the coagulation effect in the reaction process is enhanced;
4Fe2++4(OH)-+O2+2H2O＝4Ca2++4Fe(OH)3(precipitation).
7. The circulating sewage treatment system of claim 4, wherein the surface of the filtration lamination inside the SK filtration device is provided with fine grooves, the directions of the grooves of adjacent laminations are different in angle, and the filtration precision of the filtration lamination is determined by the specification and number of the designed groove intersection points.
8. The system for treating the circulating sewage according to claim 4, wherein the ultrafiltration membrane in the ultrafiltration device performs a water inlet process from the hollow fiber in the ultrafiltration device, performs a water outlet process from the outer wall to the inner wall by an internal pressure method, and performs water flow collection through the outlet pipe of the ultrafiltration device.
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