CN107265753B - Sequencing batch sewage treatment method - Google Patents
Sequencing batch sewage treatment method Download PDFInfo
- Publication number
- CN107265753B CN107265753B CN201710414097.4A CN201710414097A CN107265753B CN 107265753 B CN107265753 B CN 107265753B CN 201710414097 A CN201710414097 A CN 201710414097A CN 107265753 B CN107265753 B CN 107265753B
- Authority
- CN
- China
- Prior art keywords
- sewage
- filtering
- aeration
- aeration tank
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a sequencing batch sewage treatment method, which comprises the following steps: (1) filtering sewage; (2) adjusting and treating sewage; (3) carrying out aeration treatment on the sewage; (4) disinfecting sewage; (5) and (5) sewage disinfection treatment. The sewage treatment device has the advantages of simple structure, strong practicability, simple treatment mode and high efficiency, realizes the treatment and the reutilization of the sewage, and simultaneously reduces the flow fluctuation of the sewage entering the subsequent treatment device by performing the buffer quenching and tempering treatment on the sewage through the regulating tank, so that the treatment of the sewage is more scientific.
Description
Technical Field
The invention relates to a sequencing batch sewage treatment method.
Background
In the society of today, industrial technology is rapidly developed, and a large amount of waste water is generated along with the development of the industrial technology. And a lot of industrial and domestic wastewater is directly discharged into the river channel without being treated, which can cause serious pollution to the river channel. Therefore, the wastewater discharged into the river channel must be treated and can be discharged after being qualified. Along with the development of economy and the improvement of environmental awareness of people, people pay more and more attention to the treatment of sewage.
The sequencing batch sewage treatment is to complete five procedures of water feeding, reaction, precipitation, water drainage and standing in one treatment structure, wherein the reaction procedure still adopts aeration. The process is practical for sewage with intermittent discharge and large water quantity change, and the process is easy to realize automatic control due to small occupied area.
Disclosure of Invention
The invention aims to provide a technical scheme of a sequencing batch sewage treatment method aiming at the defects in the prior art, the treatment mode is simple, the efficiency is high, the treatment and the reutilization of sewage are realized, and simultaneously, the buffer quenching and tempering treatment is carried out on the sewage through an adjusting tank, so that the flow fluctuation of the sewage entering a subsequent treatment device is reduced, and the sewage treatment is more scientific.
A sequencing batch sewage treatment method is characterized in that: the method comprises the following steps:
1) and (3) sewage filtration treatment:
(1) conveying the sewage into a filtering tank by a water pump, firstly entering a first filtering area, filtering by a coarse grating and a fine grating to remove suspended impurity particles in the sewage, and then entering a second filtering area for further filtering treatment;
(2) sewage enters the bottom of the second filtering area through the conveying pipe, and then sequentially passes through triple filtering treatment of a cobble layer, a gravel layer and a biological filler layer from bottom to top, and the filtered upper-layer sewage enters a third filtering area from the upper part of the second filtering area;
(3) the sewage entering the third filtering area enters the filter cartridge, the residual particle impurities in the sewage are filtered through the screening and filtering of the filtering turntables with different filtering precision requirements, meanwhile, the rotating device is started when the sewage enters the third filtering area, the rotating motor drives the filtering turntables to rotate through the rotating shafts, the flowing performance of the sewage is improved, the sewage is stirred, the contact area between the sewage and the filtering turntables is increased, the filtering efficiency and the filtering quality of the sewage are improved, and the sewage treated by the third filtering area enters the regulating tank;
2) sewage regulation and treatment:
(1) firstly, sewage enters a detection cavity in an adjusting tank to detect the pH value, and then is discharged into the adjusting cavity from the detection cavity, and according to the detection result, a corresponding medicament is put into the adjusting cavity by a medicament box and is mixed with the sewage to perform a neutralization reaction on the sewage, so that the pH value in the sewage is ensured to be maintained between 6.5 and 8.5, the optimal activity maintained by microorganisms in a subsequent sewage treatment system is ensured, and the sewage treatment effect is improved;
(2) meanwhile, when sewage enters the adjusting cavity, the flow pusher at the bottom of the adjusting cavity is opened to carry out homogeneous stirring on the sewage, the moving assembly is opened, the driver pushes the flow pusher to move left and right along the sliding rod at the bottom of the adjusting cavity through the mounting plate, the stirring area of the sewage is increased, the sewage at different positions in the adjusting cavity can be stirred, the neutralizing effect of the sewage is better, and the neutralizing speed is accelerated;
3) aeration treatment of sewage:
(1) the sewage treated by the regulating tank enters a first aeration tank and a second aeration tank, the first aeration tank and the second aeration tank carry out aeration and oxygenation treatment through a first aerator at the bottom, air is conveyed into an aeration head through an aeration main rod, then the air is sprayed into the first aeration tank and the second aeration tank through an aeration spray pipe and an aeration spray hole on the aeration head, the air is fully mixed with the sewage in the first aeration tank and the second aeration tank to increase the oxygen content in the sewage, meanwhile, the second aerator above the first aeration tank and the second aeration tank is combined with the first aerator to carry out aeration treatment on the sewage, the air is conveyed to a conveying support rod through the conveying support rod, then the sewage is conveyed into the aeration rod through the conveying support rod, and finally the sewage is sprayed out from a perforation on the surface of the aeration rod, so that the aeration effect and the aeration rate are effectively improved;
(2) when the second aerator works, the vertical moving device is started, the vertical cylinder drives the transmission main rod to move up and down, so that the aeration rod is driven to move up and down, the sewage of different layers in the first aeration tank and the second aeration tank is subjected to oxygenation treatment, and the quality of the treated sewage is improved;
(3) after sewage enters a first aeration tank and a second aeration tank, the first aeration tank and the second aeration tank are subjected to gap aeration treatment through a first timer and a second timer, and alternative aeration between the first aeration tank and the second aeration tank is ensured, when the first aerator and the second aerator in the first aeration tank are started, the first timer is started, when the first timer times for reaching time, the first aerator and the second aerator in the first aeration tank are closed, meanwhile, the second timer is started, the first aerator and the second aerator in the second aeration tank are started, sewage in the second aerator is subjected to aeration and oxygenation treatment, when the second timer times for reaching time, the first aerator and the second aerator in the second aeration tank are closed, the first timer is started, and when the first aerator and the second aerator in the first aeration tank are started, repeating the above steps;
(4) after the first aerator and the second aerator are closed after aeration, settling and separating the sewage in the first aeration tank and the second aeration tank for 12-24 hours, discharging the sludge in the first aeration tank and the second aeration tank into a sludge treatment system for treatment through a sludge discharge pump after settling, and discharging clarified liquid at the upper parts of the first aeration tank and the second aeration tank into a disinfection tank for disinfection treatment;
4) and (3) sewage disinfection treatment:
(1) the sewage entering the disinfection tank is drained through the spiral heating plate, and when the sewage enters the disinfection tank, the heating sheets in the spiral heating plate are heated to raise the temperature, so that the sewage is disinfected at high temperature, germs in the sewage are killed, and the quality of the sewage after being treated is good;
(2) the sewage treated by the disinfection tank enters a detection box for detection treatment, after the detection meets the requirement, a valve in a drain pipe is opened, so that the sewage enters a sewage reuse tank through the drain pipe, and when the detection does not meet the requirement, the valve in a return pipe is opened, so that the sewage flows back into an aeration tank through the return pipe for treatment again;
5) and (3) sewage reuse treatment:
and one part of the water entering the collecting tank is conveyed into the backwashing device to provide a water source for the backwashing device, and the other part of the water is conveyed into the urban greening water and the domestic water for reuse.
Further, in step 2), when sewage enters the regulating reservoir, the timing sensor is started to ensure that the retention time of the sewage is 8-10 h, and after the timing time of the timing sensor reaches the expected time, the cylinder is started to be started to open the gate of the regulating reservoir, so that the sewage enters the aeration tank for aeration treatment.
Further, in step (1) of step 2), when sewage is detected to be acidic, the on-off valve of the alkaline chemical tank is opened, so that the alkaline chemical is sprayed out through the first chemical distributing rod, and when sewage is detected to be alkaline, the on-off valve of the acidic chemical tank is opened, so that the acidic chemical is sprayed out through the second chemical distributing rod.
Further, in the step 3), the sewage entering the first aeration tank and the second aeration tank is firstly subjected to metering treatment by the first metering pump and the second metering pump, so that the amount of the sewage entering the first aeration tank and the second aeration tank reaches the specified water level amount, and the aeration and oxygenation effects of the sewage are more reasonable.
Further, in the step 1) and the step 3), the filtering tank, the first aeration tank and the second aeration tank are periodically washed by a back washing device so as to ensure the treatment quality of subsequent sewage, water in the collecting tank is conveyed into a back washing head by a back washing pump through a back washing pipe and then is sprayed out from the back washing head, and washing operation is carried out on the filtering tank, the first aeration tank and the second aeration tank.
Further, the filtering tank in the step 1) comprises a first filtering area, a second filtering area and a third filtering area which are sequentially arranged from left to right, a coarse grating and a fine grating are arranged in the first filtering area, the fine grating is positioned below the coarse grating, a filtering layer is arranged in the second filtering area, the filtering layer is fixedly connected with the inner side wall of the second filtering area through a mounting frame, the filtering layer comprises a cobble layer, a gravel layer and a biological packing layer which are sequentially arranged from bottom to top, a filtering turntable assembly is arranged in the third filtering area, the filtering turntable assembly comprises a filtering cylinder, a filtering turntable and a rotating device, the filtering turntable is positioned in the filtering cylinder, at least 4 filtering turntables are arranged, a counter-current plate is arranged between every two adjacent filtering turntables, the rotating device comprises a rotating motor and a rotating shaft, the rotating motor is positioned on the right end face of the third filtering area, and, the filter turntables are uniformly arranged on the rotating shaft; the suspended particulate matter in the sewage is filtered by the first filtering area, the filtering of the coarse grating and the fine grating in the first filtering area ensures that the larger particulate matter in the sewage is filtered, the medium particulate matter in the sewage can be filtered by the second filtering area, the filtering effect of the sewage is further improved, the cobble layer and the biological packing layer are sequentially filtered, not only can the impurities in the sewage be filtered, but also the harmful substances in the sewage can be decomposed through the biological packing layer, the residual particulate matter in the sewage can be filtered by the third filtering area, and meanwhile, the sewage can be stirred and mixed, the flowing property of the sewage is improved, the generation of sewage odor is reduced, the treatment effect of the sewage is good through the filtering turntable assembly, the use cost is low, and the cleaning in the later period is convenient.
Furthermore, the included angles between the thick grating and the thin grating and the horizontal plane are 150-165 degrees, the design of the included angles can improve the filtering effect of the thick grating and the thin grating, and the installation is more reasonable.
Further, the mounting bracket includes the clamping plate, connecting plate and dead lever, the left and right sides of filter layer all is through the lateral wall fixed connection of clamping plate and second filtering area, be connected through the connecting plate between two clamping plates, the connecting plate passes through the top surface fixed connection of dead lever and second filtering area, the fixed connection between filter layer and the second filtering area can be convenient for in the design of clamping plate, the firm performance in installation of filter layer can further be improved in the design of connecting plate and dead lever, avoid the filter layer to receive water impact and take place the skew, more firm of overall structure design.
Further, be provided with the clamp ring on the lateral wall of cartridge filter, the clamp ring is provided with 2 at least, and the cartridge filter passes through the clamp ring and is spacing fixed with the third filtering area, and the design of clamp ring can be so that the installation of the cartridge filter of being convenient for spacing, and 2 at least designs can be so that the installation of cartridge filter is fixed firm more reliable.
Further, be provided with on the inside wall of cartridge filter and filter the corresponding screens board of carousel, be provided with the screens groove on the screens board, filter the carousel clamping at the screens inslot, the design of screens board can be convenient for filter the spacing of carousel, rational in infrastructure, can make the rotatory steady more reliable of filtering the carousel again, improve the stability ability of filtering the carousel subassembly, avoid filtering the carousel and receive the impact force of sewage and take place deformation, the life of carousel is filtered in the extension, the design in screens groove can be so that closely laminate between screens board and the filter carousel, and can reduce the wearing and tearing dynamics that the screens board caused to filtering the carousel surface again.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. according to the invention, the impurity particles in the sewage are filtered through triple filtration of the first filtering area, the second filtering area and the third filtering area, so that the phenomenon that the device is blocked and damaged due to the fact that the impurities enter the subsequent treatment device is avoided, and meanwhile, the treatment quality of the sewage can be improved;
2. according to the invention, the sewage is buffered by the regulating reservoir, when the input amount of the sewage is large, the sewage can be temporarily stored in the regulating reservoir, when no sewage is input, the sewage can be conveyed into the aeration tank for treatment by the regulating reservoir, the overall structural design is more reasonable, and the sewage is neutralized by the detection cavity and the reagent box, so that the pH value in the sewage is maintained between 6.5 and 8.5, the effect of later-stage sewage treatment is ensured, the water quality is more stable, the treatment load of a later-stage device on the sewage can be relieved by the regulating reservoir, and the fluctuation of the sewage flow entering the sewage treatment system is reduced, thereby improving the sewage treatment quality and prolonging the service life of the sewage treatment device;
3. the sewage treatment system realizes the uninterrupted treatment of the sewage and improves the sewage treatment efficiency by the alternating treatment of the first aeration tank and the second aeration tank, the sewage is circularly subjected to the processes of water inlet, aeration, sedimentation, discharge and idling in the first aeration tank and the second aeration tank, and when the first aeration tank is subjected to the aeration treatment and then enters the post treatment process, the sewage enters the second aeration tank for the aeration treatment, so that the uninterrupted aeration treatment can be carried out on the sewage, the treatment time of the whole sewage treatment system is shortened, and the structural design is more reasonable;
4. according to the invention, through the double aeration treatment of the first aerator and the second aerator, the aeration rate and the aeration quality of the sewage are effectively accelerated, so that the oxygen content in the sewage is higher, the self-purification capacity of the sewage is improved, and meanwhile, even if one of the aerators has a problem, the other aerator can continue to play a role, and the device has the advantages of reasonable design, convenience in use and convenience for later maintenance.
The sewage treatment device has the advantages of simple structure, strong practicability, simple treatment mode and high efficiency, realizes the treatment and the reutilization of the sewage, and simultaneously reduces the flow fluctuation of the sewage entering the subsequent treatment device by performing the buffer quenching and tempering treatment on the sewage through the regulating tank, so that the treatment of the sewage is more scientific.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of a sequencing batch wastewater treatment process according to the present invention;
FIG. 2 is a schematic view showing the internal structure of a filtering tank in a sequencing batch wastewater treatment method according to the present invention;
fig. 3 is a mounting structure diagram between the blocking plate and the filter turntable.
In the figure: 1-a first filtration zone; 2-a second filtration zone; 3-a third filtration zone; 4-coarse grating; 5-fine grating; 6-cobble layer; 7-a rubble layer; 8-a bio-filler layer; 9-a filter cartridge; 10-a filter turntable; 11-an adverse current plate; 12-a rotating electrical machine; 13-a rotating shaft; 14-a clamping plate; 15-a connecting plate; 16-a fixing rod; 17-a clamp ring; 18-a clamping plate; 19-a clamping groove; 20-conveying pipe.
Detailed Description
Referring to fig. 1 to 3, a sequencing batch sewage treatment method according to the present invention comprises the following steps:
1) and (3) sewage filtration treatment:
(1) conveying the sewage into a filtering tank by a water pump, firstly entering a first filtering area 1, filtering by a coarse grating 4 and a fine grating 5 to remove suspended impurity particles in the sewage, and then entering a second filtering area 2 for further filtering treatment;
(2) sewage enters the bottom of the second filtering area 2 through the conveying pipe 20, and then is subjected to triple filtering treatment of the cobble layer 6, the gravel layer 7 and the biological filler layer 8 from bottom to top in sequence, and the filtered upper-layer sewage enters the third filtering area 3 from the upper part of the second filtering area 2;
(3) the sewage entering the third filtering area 3 enters the filter cylinder 9, the residual particle impurities in the sewage are filtered through the screening and filtering of the filtering turntables 10 with different filtering precision requirements, meanwhile, the rotating device is started when the sewage enters the third filtering area 3, the rotating motor 12 drives the filtering turntables 10 to rotate through the rotating shaft 13, the flowing performance of the sewage is improved, the sewage is stirred, the contact area between the sewage and the filtering turntables 10 is increased, the filtering efficiency and the filtering quality of the sewage are improved, and the sewage treated by the third filtering area 3 enters the regulating tank;
2) sewage regulation and treatment:
(1) firstly, sewage enters a detection cavity in an adjusting tank to detect the pH value, and then is discharged into the adjusting cavity from the detection cavity, according to the detection result, a corresponding agent is thrown into the adjusting cavity by a chemical box, when the sewage is detected to be acidic, a switch valve of an alkaline chemical box is opened, so that the alkaline agent is sprayed out through a first agent distributing rod, when the sewage is detected to be alkaline, the switch valve of the acidic chemical box is opened, so that the acidic agent is sprayed out through a second agent distributing rod, is mixed with the sewage, and performs a neutralization reaction on the sewage, so that the pH value in the sewage is maintained between 6.5 and 8.5, the optimal activity maintained by microorganisms in a subsequent sewage treatment system is ensured, and the sewage treatment effect is improved;
(2) meanwhile, when sewage enters the adjusting cavity, the flow pusher at the bottom of the adjusting cavity is opened to carry out homogeneous stirring on the sewage, the moving assembly is opened, the driver pushes the flow pusher to move left and right along the sliding rod at the bottom of the adjusting cavity through the mounting plate, the stirring area of the sewage is increased, the sewage at different positions in the adjusting cavity can be stirred, the neutralizing effect of the sewage is better, and the neutralizing speed is accelerated;
(3) when sewage enters the regulating tank, the timing sensor is started to ensure that the retention time of the sewage is 8-10 h, and when the timing time of the timing sensor reaches the expected time, the cylinder is started to start, so that the gate of the regulating tank is opened, and the sewage enters the aeration tank to be subjected to aeration treatment;
3) aeration treatment of sewage:
(1) the sewage treated by the regulating reservoir enters a first aeration tank and a second aeration tank, the sewage entering the first aeration tank and the second aeration tank is firstly subjected to metering treatment by a first metering pump and a second metering pump, so that the sewage amount entering the first aeration tank and the second aeration tank reaches the specified water level amount, and the aeration and oxygenation effects of the sewage are more reasonable, the first aeration tank and the second aeration tank are subjected to aeration and oxygenation treatment by a first aerator at the bottom, air is conveyed into an aeration head by an aeration main rod, then the air is sprayed into the first aeration tank and the second aeration tank from an aeration spray pipe and an aeration spray hole on the aeration head, the air is fully mixed with the sewage in the first aeration tank and the second aeration tank, the oxygen content in the sewage is increased, and meanwhile, a second aerator above the first aeration tank and the second aeration tank is combined with the first aerator for use, the sewage is aerated, the air is conveyed to the conveying branch rod by the conveying main rod, then conveyed into the aeration rod by the conveying branch rod, and finally sprayed out from the perforation on the surface of the aeration rod, so that the aeration effect and the aeration rate are effectively improved;
(2) when the second aerator works, the vertical moving device is started, the vertical cylinder drives the transmission main rod to move up and down, so that the aeration rod is driven to move up and down, the sewage of different layers in the first aeration tank and the second aeration tank is subjected to oxygenation treatment, and the quality of the treated sewage is improved;
(3) after sewage enters a first aeration tank and a second aeration tank, carrying out interval aeration treatment on the first aeration tank and the second aeration tank through a first timer and a second timer, ensuring alternative aeration between the first aeration tank and the second aeration tank, starting the first timer when the first aerator and the second aerator in the first aeration tank are started, stopping the first aerator and the second aerator in the first aeration tank when the first timer times out, starting the second timer at the same time, starting the first aerator and the second aerator in the second aeration tank, carrying out aeration and oxygenation treatment on the sewage in the second aerator, stopping the first aerator and the second aerator in the second aeration tank when the second timer times out, starting the first timer, and starting the first aerator and the second aerator in the first aeration tank when the first aerator and the second aerator in the first aeration tank are started, repeating the above steps;
(4) after the first aerator and the second aerator are closed after aeration, settling and separating the sewage in the first aeration tank and the second aeration tank for 12-24 hours, discharging the sludge in the first aeration tank and the second aeration tank into a sludge treatment system for treatment through a sludge discharge pump after settling, and discharging clarified liquid at the upper parts of the first aeration tank and the second aeration tank into a disinfection tank for disinfection treatment;
4) and (3) sewage disinfection treatment:
(1) the sewage entering the disinfection tank is drained through the spiral heating plate, and when the sewage enters the disinfection tank, the heating sheets in the spiral heating plate are heated to raise the temperature, so that the sewage is disinfected at high temperature, germs in the sewage are killed, and the quality of the sewage after being treated is good;
(2) the sewage treated by the disinfection tank enters a detection box for detection treatment, after the detection meets the requirement, a valve in a drain pipe is opened, so that the sewage enters a sewage reuse tank through the drain pipe, and when the detection does not meet the requirement, the valve in a return pipe is opened, so that the sewage flows back into an aeration tank through the return pipe for treatment again;
5) and (3) sewage reuse treatment:
and one part of the water entering the collecting tank is conveyed into the backwashing device to provide a water source for the backwashing device, and the other part of the water is conveyed into the urban greening water and the domestic water for reuse.
6) And (3) later-stage cleaning:
the filtering tank, the first aeration tank and the second aeration tank are regularly washed by the back washing device to ensure the treatment quality of subsequent sewage, and the water in the collecting tank is conveyed into the back washing head by the back washing pump through the back washing pipe and then is sprayed out from the back washing head to wash the filtering tank, the first aeration tank and the second aeration tank.
The filtering tank comprises a first filtering area 1, a second filtering area 2 and a third filtering area 3 which are sequentially arranged from left to right, a thick grating 4 and a thin grating 5 are arranged in the first filtering area 1, the included angles between the thick grating 4 and the thin grating 5 and the horizontal plane are 150-165 degrees, the filtering effect of the thick grating 4 and the filtering effect of the thin grating 5 can be improved through the design of the included angles, the installation is more reasonable, and the thin grating 5 is located below the thick grating 4.
Be provided with the filter layer in the second filtering area 2, the filter layer passes through the inside wall fixed connection of mounting bracket and second filtering area 2, the mounting bracket includes clamping plate 14, connecting plate 15 and dead lever 16, the left and right sides of filter layer all is through clamping plate 14 and second filtering area 2's lateral wall fixed connection, be connected through connecting plate 15 between two clamping plates 14, connecting plate 15 passes through dead lever 16 and second filtering area 2's top surface fixed connection, clamping plate 14's design can be convenient for the fixed connection between filter layer and the second filtering area 2, the firm in installation performance of filter layer can further be improved in connecting plate 15 and dead lever 16's design, it takes place the skew to avoid the filter layer to receive water impact, more firm in overall structure design, the filter layer includes from down the cobblestone layer 6 that up sets gradually, metalling 7 and bio-packing layer 8.
A filter turntable assembly is arranged in the third filtering area 3, the filter turntable assembly comprises a filter cartridge 9, a filter turntable 10 and a rotating device, the outer side wall of the filter cartridge 9 is provided with at least 2 clamp rings 17, the filter cartridge 9 is limited and fixed with the third filtering area 3 through the clamp rings 17, the design of the clamp rings 17 can facilitate the installation and the limitation of the filter cartridge 9, the installation and the fixation of the filter cartridge 9 can be firmer and more reliable due to the design of at least 2 clamp rings, the inner side wall of the filter cartridge 9 is provided with a clamping plate 18 corresponding to the filter turntable 10, the clamping plate 18 is provided with a clamping groove 19, the filter turntable 10 is embedded in the clamping groove 19, the design of the clamping plate 18 can facilitate the limitation of the filter turntable 10, the structure is reasonable, the rotation of the filter turntable 10 can be more stable and more reliable, the stability of the filter turntable assembly is improved, and the filter turntable 10 is prevented from being deformed due to the impact, the life of extension filtration carousel 10, screens groove 19's design can be so that screens board 18 and filtration carousel 10 between closely laminating, and can reduce the wearing and tearing dynamics that screens board 18 caused to filtering carousel 10 surface again, it is located cartridge filter 9 to filter carousel 10, it is provided with 4 at least to filter carousel 10, be provided with adverse current board 11 between two adjacent filtration carousels 10, rotary device includes rotating electrical machines 12 and rotation axis 13, rotating electrical machines 12 is located the right-hand member face of third filtering area 3, rotating electrical machines 12 is connected with rotation axis 13, it evenly sets up on rotation axis 13 to filter carousel 10.
The suspended particulate matter in the sewage is filtered by the first filtering area 1, the filtering of the coarse grids 4 and the fine grids 5 in the first filtering area 1 ensures that the larger particulate matter in the sewage is filtered, the medium particulate matter in the sewage can be filtered by the second filtering area 2, the filtering effect of the sewage is further improved, the cobble layer 6 is passed through, the gravel layer 7 and the biological packing layer 8 are successively filtered, not only can the impurities in the sewage be filtered, but also the harmful substances in the sewage can be decomposed through the biological packing layer 8, the residual particulate matter in the sewage can be filtered by the third filtering area 3, the sewage can be stirred and mixed simultaneously, the flowing property of the sewage is improved, the generation of sewage peculiar smell is reduced, not only can the treatment effect of the sewage be good through the filtering turntable assembly, but also the use cost is low, and the cleaning in the later period is convenient.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (7)
1. A sequencing batch sewage treatment method is characterized by comprising the following steps:
1) and (3) sewage filtration treatment:
(1) conveying the sewage into a filtering tank by a water pump, firstly entering a first filtering area, filtering by a coarse grating and a fine grating to remove suspended impurity particles in the sewage, and then entering a second filtering area for further filtering treatment;
(2) sewage enters the bottom of the second filtering area through the conveying pipe, and then sequentially passes through triple filtering treatment of a cobble layer, a gravel layer and a biological filler layer from bottom to top, and the filtered upper-layer sewage enters a third filtering area from the upper part of the second filtering area;
(3) the sewage entering the third filtering area enters the filter cartridge, the residual particle impurities in the sewage are filtered through the screening and filtering of the filtering turntables with different filtering precision requirements, meanwhile, the rotating device is opened when the sewage enters the third filtering area, the rotating motor drives the filtering turntables to rotate through the rotating shafts, the flowing performance of the sewage is increased, the sewage is stirred, the contact area between the sewage and the filtering turntables is increased, the filtering efficiency and the filtering quality of the sewage are improved, the sewage treated by the third filtering area enters the regulating tank, the filtering tank comprises a first filtering area, a second filtering area and a third filtering area which are sequentially arranged from left to right, a thick grating and a thin grating are arranged in the first filtering area, the thin grating is positioned below the thick grating, a filtering layer is arranged in the second filtering area, and the filtering layer is fixedly connected with the inner side wall of the second filtering area through a mounting rack, the mounting rack comprises clamping plates, connecting plates and fixing rods, the left side and the right side of the filter layer are fixedly connected with the side wall of the second filtering area through the clamping plates, the two clamping plates are connected with each other through the connecting plates, the connecting plates are fixedly connected with the top surface of the second filtering area through the fixing rods, the filter layer comprises a cobble layer, a gravel layer and a bio-packing layer which are sequentially arranged from bottom to top, a filtering turntable assembly is arranged in the third filtering area, the filtering turntable assembly comprises a filter cylinder, a filtering turntable and a rotating device, the filtering turntable is positioned in the filter cylinder, clamping plates corresponding to the filtering turntable are arranged on the inner side wall of the filter cylinder, clamping grooves are arranged on the clamping plates, the filtering turntable is clamped in the clamping grooves, and the filtering turntable is provided with at least 4 clamping plates, a counter-current plate is arranged between every two adjacent filtering turntables, the rotating device comprises a rotating motor and a rotating shaft, the rotating motor is positioned on the right end face of the third filtering area, the rotating motor is connected with the rotating shaft, and the filtering turntables are uniformly arranged on the rotating shaft;
2) sewage regulation and treatment:
(1) firstly, sewage enters a detection cavity in an adjusting tank to detect the pH value, and then is discharged into the adjusting cavity from the detection cavity, and according to the detection result, a corresponding medicament is put into the adjusting cavity by a medicament box and is mixed with the sewage to perform a neutralization reaction on the sewage, so that the pH value in the sewage is ensured to be maintained between 6.5 and 8.5, the optimal activity maintained by microorganisms in a subsequent sewage treatment system is ensured, and the sewage treatment effect is improved;
(2) meanwhile, when sewage enters the adjusting cavity, the flow pusher at the bottom of the adjusting cavity is opened to carry out homogeneous stirring on the sewage, the moving assembly is opened, the driver pushes the flow pusher to move left and right along the sliding rod at the bottom of the adjusting cavity through the mounting plate, the stirring area of the sewage is increased, the sewage at different positions in the adjusting cavity can be stirred, the neutralizing effect of the sewage is better, and the neutralizing speed is accelerated;
3) aeration treatment of sewage:
(1) the sewage treated by the regulating tank enters a first aeration tank and a second aeration tank, the first aeration tank and the second aeration tank carry out aeration and oxygenation treatment through a first aerator at the bottom, air is conveyed into an aeration head through an aeration main rod, then the air is sprayed into the first aeration tank and the second aeration tank through an aeration spray pipe and an aeration spray hole on the aeration head, the air is fully mixed with the sewage in the first aeration tank and the second aeration tank to increase the oxygen content in the sewage, meanwhile, the second aerator above the first aeration tank and the second aeration tank is combined with the first aerator to carry out aeration treatment on the sewage, the air is conveyed to a conveying support rod through the conveying support rod, then the sewage is conveyed into the aeration rod through the conveying support rod, and finally the sewage is sprayed out from a perforation on the surface of the aeration rod, so that the aeration effect and the aeration rate are effectively improved;
(2) when the second aerator works, the vertical moving device is started, the vertical cylinder drives the transmission main rod to move up and down, so that the aeration rod is driven to move up and down, the sewage of different layers in the first aeration tank and the second aeration tank is subjected to oxygenation treatment, and the quality of the treated sewage is improved;
(3) after sewage enters a first aeration tank and a second aeration tank, carrying out interval aeration treatment on the first aeration tank and the second aeration tank through a first timer and a second timer, ensuring alternative aeration between the first aeration tank and the second aeration tank, starting the first timer when the first aerator and the second aerator in the first aeration tank are started, stopping the first aerator and the second aerator in the first aeration tank when the first timer times out, starting the second timer at the same time, starting the first aerator and the second aerator in the second aeration tank, carrying out aeration and oxygenation treatment on the sewage in the second aerator, stopping the first aerator and the second aerator in the second aeration tank when the second timer times out, starting the first timer, and starting the first aerator and the second aerator in the first aeration tank when the first aerator and the second aerator in the first aeration tank are started, repeating the above steps;
(4) after the first aerator and the second aerator are closed after aeration, settling and separating the sewage in the first aeration tank and the second aeration tank for 12-24 hours, discharging the sludge in the first aeration tank and the second aeration tank into a sludge treatment system for treatment through a sludge discharge pump after settling, and discharging clarified liquid at the upper parts of the first aeration tank and the second aeration tank into a disinfection tank for disinfection treatment;
4) and (3) sewage disinfection treatment:
(1) the sewage entering the disinfection tank is drained through the spiral heating plate, and when the sewage enters the disinfection tank, the heating sheets in the spiral heating plate are heated to raise the temperature, so that the sewage is disinfected at high temperature, germs in the sewage are killed, and the quality of the sewage after being treated is good;
(2) the sewage treated by the disinfection tank enters a detection box for detection treatment, after the detection meets the requirement, a valve in a drainage pipe is opened, so that the sewage enters a collection tank through the drainage pipe, and when the detection does not meet the requirement, the valve in a return pipe is opened, so that the sewage flows back into an aeration tank through a return pipe for treatment again;
5) and (3) sewage reuse treatment:
and one part of the water entering the collecting tank is conveyed into the backwashing device to provide a water source for the backwashing device, and the other part of the water is conveyed into the urban greening water and the domestic water for reuse.
2. The sequencing batch wastewater treatment process of claim 1, wherein: in the step 2), when sewage enters the regulating reservoir, the timing sensor is started to ensure that the retention time of the sewage is 8-10 h, and after the timing time of the timing sensor reaches the expected time, the cylinder is started to be started to open the gate of the regulating reservoir, so that the sewage enters the aeration tank for aeration treatment.
3. The sequencing batch wastewater treatment process of claim 1, wherein: in step (1) of step 2), when the sewage is detected to be acidic, the on-off valve of the alkaline chemical tank is opened, so that the alkaline chemical is sprayed out through the first chemical distributing rod, and when the sewage is detected to be alkaline, the on-off valve of the acidic chemical tank is opened, so that the acidic chemical is sprayed out through the second chemical distributing rod.
4. The sequencing batch wastewater treatment process of claim 1, wherein: in the step 3), the sewage entering the first aeration tank and the second aeration tank is firstly metered by the first metering pump and the second metering pump, so that the sewage entering the first aeration tank and the second aeration tank reaches the specified water level, and the aeration and oxygenation effects of the sewage are more reasonable.
5. The sequencing batch wastewater treatment process of claim 1, wherein: in the step 1) and the step 3), the filtering tank, the first aeration tank and the second aeration tank are periodically washed by a back washing device so as to ensure the treatment quality of subsequent sewage, water in the collecting tank is conveyed into a back washing head by a back washing pump through a back washing pipe and then is sprayed out from the back washing head, and the filtering tank, the first aeration tank and the second aeration tank are washed.
6. The sequencing batch wastewater treatment process of claim 1, wherein: the included angle between the thick grating and the horizontal plane and the included angle between the thin grating and the horizontal plane are 150-165 degrees.
7. The sequencing batch wastewater treatment process of claim 1, wherein: the outer side wall of the filter cartridge is provided with at least 2 clamp rings, and the filter cartridge is limited and fixed with the third filter area through the clamp rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414097.4A CN107265753B (en) | 2017-06-05 | 2017-06-05 | Sequencing batch sewage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414097.4A CN107265753B (en) | 2017-06-05 | 2017-06-05 | Sequencing batch sewage treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107265753A CN107265753A (en) | 2017-10-20 |
| CN107265753B true CN107265753B (en) | 2020-10-30 |
Family
ID=60064844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710414097.4A Active CN107265753B (en) | 2017-06-05 | 2017-06-05 | Sequencing batch sewage treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107265753B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218125A (en) * | 2018-01-23 | 2018-06-29 | 浙江建设职业技术学院 | A kind of urban sewage treating device and method |
| CN109809648A (en) * | 2019-03-25 | 2019-05-28 | 刘柏芝 | Biochemistry sewage-treatment plant |
| CN110240310A (en) * | 2019-06-14 | 2019-09-17 | 吉林建筑大学 | A kind of town sewage treatment system based on block chain technology |
| CN111943460A (en) * | 2020-09-07 | 2020-11-17 | 北京万原洪真科技有限公司 | Public toilet washes circulation water integrated treatment facility |
| CN113003900A (en) * | 2021-05-11 | 2021-06-22 | 江苏恒玮环保设备有限公司 | Fiber rotary disc filter and sewage treatment method thereof |
| CN114349222A (en) * | 2022-01-15 | 2022-04-15 | 张先福 | Livestock and poultry manure sewage treatment system |
| CN114349155A (en) * | 2022-01-27 | 2022-04-15 | 苏州市苏创环境科技发展有限公司 | Biological filter equipment and backwashing process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030079168A (en) * | 2002-04-02 | 2003-10-10 | 곽종운 | Water purification device using a microorganism media |
| CN101428946A (en) * | 2008-12-02 | 2009-05-13 | 金荷英 | Integrated treatment process and equipment for domestic wastewater |
| CN201914995U (en) * | 2010-08-30 | 2011-08-03 | 秦皇岛世纪源水处理技术有限公司 | Ultrasonic rotating disc filter |
| CN105859051A (en) * | 2016-06-06 | 2016-08-17 | 王佳莺 | Biogas slurry optical treatment breeding system and working method thereof |
| CN106512527A (en) * | 2016-12-12 | 2017-03-22 | 佛山市绿星环保科技有限公司 | Novel waste water filtering, dehydration and deslagging all-in-one machine |
| CN106517498A (en) * | 2016-12-30 | 2017-03-22 | 中冶华天工程技术有限公司 | Dynamic bottom aeration system and aeration method thereof |
-
2017
- 2017-06-05 CN CN201710414097.4A patent/CN107265753B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030079168A (en) * | 2002-04-02 | 2003-10-10 | 곽종운 | Water purification device using a microorganism media |
| CN101428946A (en) * | 2008-12-02 | 2009-05-13 | 金荷英 | Integrated treatment process and equipment for domestic wastewater |
| CN201914995U (en) * | 2010-08-30 | 2011-08-03 | 秦皇岛世纪源水处理技术有限公司 | Ultrasonic rotating disc filter |
| CN105859051A (en) * | 2016-06-06 | 2016-08-17 | 王佳莺 | Biogas slurry optical treatment breeding system and working method thereof |
| CN106512527A (en) * | 2016-12-12 | 2017-03-22 | 佛山市绿星环保科技有限公司 | Novel waste water filtering, dehydration and deslagging all-in-one machine |
| CN106517498A (en) * | 2016-12-30 | 2017-03-22 | 中冶华天工程技术有限公司 | Dynamic bottom aeration system and aeration method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107265753A (en) | 2017-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107265753B (en) | Sequencing batch sewage treatment method | |
| CN102225827B (en) | Treatment method for wastewater from straw pulp papermaking intermediate section | |
| CN102329051B (en) | Rubbish percolate treatment device by taking advanced oxidation and comprehensive membrane treatment as cores | |
| CN202116397U (en) | Full-automatic car-washing waste water disposal device | |
| CN102020370A (en) | Sewage advanced treatment method and device thereof | |
| CN105129974A (en) | Reciprocating rotary type membrane bioreactor | |
| CN101811773A (en) | Online cleaning roll-type membrane bioreactor | |
| CN101700914A (en) | Sludge circular flocculation-membrane filtration reactor | |
| CN214167701U (en) | High-efficient MBR biological treatment system of landfill leachate | |
| CN106673257A (en) | Micropolluted raw water treatment integrated plant | |
| CN102641619A (en) | Coagulating sedimentation separator | |
| CN203373221U (en) | Laboratory wastewater treatment process equipment | |
| CN103073165A (en) | Chemical and biological sewage treatment device | |
| CN202715310U (en) | Coagulating sedimentation separator | |
| CN205442980U (en) | Sewage purification processing system | |
| CN201512441U (en) | Equipment for treating sewage into reclaimed water | |
| CN201141002Y (en) | Sullage circulating and processing device | |
| CN105060440A (en) | Clarification tank | |
| CN205953569U (en) | Sewage purification processing device | |
| CN107032562A (en) | Integrated civil sewage processing system | |
| CN203862023U (en) | Regular dirt and sundry removing and processing device for sewage water | |
| CN115246695A (en) | Sewage treatment pond with antibiotic function of degradation | |
| CN2561789Y (en) | Moderate water processing and reusing apparatus | |
| CN112939319A (en) | Urban sewage treatment and recycling equipment and treatment method thereof | |
| KR200189492Y1 (en) | The inclined precipitation tank in waste water disposal plant by microorganism contact |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221130 Address after: 321000 north of Qingyuan Road and south of Yasu street, Linjiang block, Wucheng new urban area, Jinhua City, Zhejiang Province Patentee after: Jinhua Delang sewage treatment Co.,Ltd. Address before: 310018 508 Xuefu street, Xiasha Higher Education East District, Hangzhou, Zhejiang Patentee before: ZHEJIANG University OF WATER RESOURCES AND ELECTRIC POWER |
|
| TR01 | Transfer of patent right |