CN213680165U - Sewage treatment system for independently treating backwashing wastewater - Google Patents
Sewage treatment system for independently treating backwashing wastewater Download PDFInfo
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- CN213680165U CN213680165U CN202022445468.5U CN202022445468U CN213680165U CN 213680165 U CN213680165 U CN 213680165U CN 202022445468 U CN202022445468 U CN 202022445468U CN 213680165 U CN213680165 U CN 213680165U
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- 239000010865 sewage Substances 0.000 title claims abstract description 76
- 239000002351 wastewater Substances 0.000 title claims abstract description 62
- 238000011001 backwashing Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000006004 Quartz sand Substances 0.000 claims description 21
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Abstract
The utility model belongs to the technical field of sewage treatment, in particular to a sewage treatment system for independently treating backwashing wastewater, which comprises a raw water pool, a mechanical filtering module, a clean water pool and a backwashing water pump, wherein the raw water pool, the mechanical filtering module and the clean water pool are sequentially communicated along the sewage flow direction, and the backwashing water pump is respectively communicated with the mechanical filtering module and the clean water pool; the backwashing wastewater treatment module comprises a backwashing wastewater tank, a wastewater treatment device and a mud pressing device, wherein the backwashing wastewater tank is communicated with the upper backwashing water outlet through a pipeline four, the backwashing wastewater tank is communicated with the wastewater treatment device through a pipeline five, and the bottom end of the wastewater treatment device is communicated with the mud pressing device. The utility model discloses directly discharge after directly discharging back flush wastewater treatment module to the back flush wastewater after mechanical filter module blows, alleviate the load of follow-up processing technology, reduce the consumption of organic matter, carbon source in the biochemical pond in the sewage treatment technology, also alleviate the operation cost of sewage factory.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, especially, relate to a sewage treatment system of back flush waste water independent processing.
Background
Along with the development of society, the negative effects brought by water pollution are increasingly prominent, and great harm is brought to physical and psychological health and natural environment of human beings; with increasingly strict environmental protection supervision, the wastewater must be filtered and purified before being discharged, and can be discharged after being filtered to be qualified. The sewage treatment system is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
Mechanical filters, also known as pressure filters, are an important component of sewage treatment systems. According to different filter media, the filter media are divided into a quartz sand filter, a multi-media filter, an activated carbon filter, a manganese sand filter and the like, and the quartz sand filter is more; the working principle is that the refined quartz sand filter material filled in the filter is utilized, when the inlet water flows through the filter layer from top to bottom, silt or other particle suspended pollutants in the water are removed, and therefore the purpose of purifying the sewage is achieved. At present, most domestic sewage treatment systems for filtering quartz sand have a back washing function, wastewater generated in back washing directly returns to a water inlet end to be mixed with sewage to be treated, and flows into a quartz sand filter together for re-filtering, and the structural mode can reduce the engineering quantity, the manufacturing cost, the occupied space rate and the like. However, the backwashing wastewater returns to the quartz sand filter, so that the total amount of sewage treatment in the sewage treatment system and the consumption of organic matters and carbon sources in a subsequent biochemical tank are increased; meanwhile, the long-acting effect of the quartz sand filter is influenced by the fact that silt or other particle suspended pollutants are not cleaned all the time, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a backwash wastewater independent treatment's sewage treatment system, the waste water that the back flush process that aims at solving sewage treatment system among the prior art produced directly gets back to the end of intaking, mixes with pending sewage and flows into quartz sand filter again jointly, leads to increasing in the sewage treatment system total amount and follow-up biochemical pond organic matter, the consumption of carbon source, and because of silt or other granule suspended pollutants do not clear up the technical problem who influences the long-term efficiency of quartz sand filter all the time.
In order to achieve the above object, an embodiment of the present invention provides a sewage treatment system for independently treating backwash wastewater, which includes a raw water tank, a mechanical filtration module, a clean water tank and a backwash water pump, wherein the raw water tank, the mechanical filtration module and the clean water tank are sequentially communicated along a sewage flow direction, and the backwash water pump is respectively communicated with the mechanical filtration module and the clean water tank; the mechanical filter module is provided with an upper sewage inlet, a lower purified water outlet, a lower backwash water inlet and an upper backwash water outlet, the raw water tank is communicated with the upper sewage inlet through a first pipeline, the purified water tank is communicated with the lower purified water outlet through a second pipeline, and the output end of the backwash water pump is communicated with the lower backwash water inlet through a third pipeline. The structural design enables the sewage treatment system to have a purging function on the mechanical filtering module.
Optionally, the backwashing wastewater treatment system further comprises a backwashing wastewater treatment module, wherein the backwashing wastewater treatment module comprises a backwashing wastewater pool, a wastewater treatment device and a mud pressing device, the backwashing wastewater pool is communicated with the upper backwashing water outlet through a fourth pipeline, the backwashing wastewater pool is communicated with the wastewater treatment device through a fifth pipeline, and the bottom end of the wastewater treatment device is communicated with the mud pressing device. This structural design realizes to the mechanical filtration module carries out the independent purification treatment of waste water that blasts, and does not adopt the mechanical filtration module to handle.
Optionally, the wastewater treatment device comprises a treatment tank in communication with the backwash wastewater tank and a sedimentation tank in communication with the treatment tank; the treatment tank is sequentially provided with an adjusting area, a mixing area and a reaction area according to the process requirements required by wastewater treatment, the adjusting area and the mixing area are communicated with each other, the mixing area and the reaction area are communicated with each other, and wastewater is flocculated by suspended matters and colloidal substances contained in the wastewater through the treatment tank.
Optionally, the conditioning zone is an acid-base PH conditioning zone. The structural design aims to neutralize the pH value in the sewage so as to achieve the pH value required by the process.
Optionally, the mixing zone is a mixing zone for dosing polyaluminium chloride-PAC material and the contaminated water. The structural design aims to put in polyaluminium chloride-PAC substances according to a certain proportion, and the polyaluminium chloride-PAC substances play a role in flocculating silt, suspended matters and colloidal substances in sewage so as to reduce the post-treatment load and ensure that the sewage reaches the discharge standard.
Optionally, the reaction zone is a chemical reaction zone for dosing polyacrylamide-PAM species with the mixing zone influent species. The purpose of the structural design is to put in the polyacrylamide-PAM substance according to a certain proportion, and the polyacrylamide-PAM substance is matched with the aluminum chloride-PAC substance for use, so that the separation effect of silt, suspended matters, colloid substances and water can be better, and the dosing cost is reduced, so that the wastewater treatment device has the advantages of lower cost, strong adaptability and the like.
Optionally, a filler and a rotational flow sludge collecting groove are arranged in the sedimentation tank; the filler is arranged in the middle of the sedimentation tank, and the rotational flow sludge collecting tank is of a funnel type structure and is arranged at the bottom of the sedimentation tank. In the structural design, the funnel type rotational flow sludge collecting groove is convenient for the precipitation and separation of silt, suspended matters and colloidal substances; the filler further filters the water in the sedimentation tank.
Optionally, the device further comprises a blower which is communicated with the mechanical filtering module through an air pipe; the trachea is equipped with manual butterfly valve, stagnant water valve and flowmeter along the air flow direction in proper order.
Optionally, the mechanical filter module is comprised of a plurality of quartz sand filters arranged in a parallel configuration. The structural design plays a role in increasing the treatment capacity of the sewage treatment system.
Optionally, the first pipeline and the fifth pipeline are sequentially provided with a manual butterfly valve, a booster pump, a water stop valve, a manual butterfly valve and a pressure gauge along the flowing direction of the water body.
Optionally, the raw water tank, the clean water tank and the backwashing wastewater tank are all provided with liquid level transmitters and drainage ditches. The structural design realizes automatic water supply and drainage operation of the water in the raw water tank, the water purification tank and the backwashing wastewater tank.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the sewage treatment system of backwash waste water independent processing have one of following technological effect at least:
1. an upper backwashing water outlet on the mechanical filtering module is communicated with the backwashing wastewater treatment module, so that the wastewater treatment system can independently treat the wastewater after the mechanical filtering module is blown; the backwashing wastewater of the existing sewage treatment system is not directly returned to the water inlet end to be mixed with the sewage to be treated and flows into the mechanical filtering module together for filtering again, so that the defects that the total amount of sewage treatment in the sewage treatment system and the consumption of organic matters and carbon sources in a subsequent biochemical pool are increased and the long-acting effect of the quartz sand filter is influenced because silt or other particle suspended pollutants are not cleaned all the time in the existing treatment mode are effectively overcome. The utility model discloses a back flush waste water directly discharges directly behind the back flush waste water treatment module, alleviates the load of follow-up processing technology, reduces the consumption of organic matter, carbon source in the biochemical pond in the sewage treatment technology, also alleviates sewage plant operation cost.
2. By adopting the treatment tank, a certain proportion of polyacrylamide-PAM (polyacrylamide-polyacrylamide) substance and aluminum chloride-PAC (polyaluminium chloride) substance are put into the treatment tank to act in a matching way, so that the flocculation effect on suspended matters and colloidal substances in the backwashing wastewater can be efficiently realized; the cyclone sludge collecting tank is adopted to facilitate the precipitation separation of suspended matters and colloidal substances in the sedimentation tank; and the filler is adopted to further filter the water body in the sedimentation tank, so that the sedimentation tank has the advantages of compact structure, high sedimentation speed, low cost, strong adaptability and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
FIG. 1 is a block diagram of a sewage treatment system for separate treatment of backwash wastewater according to an embodiment of the present invention;
fig. 2 is a front view of a mechanical filter module according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 labeled A;
FIG. 4 is a schematic structural view of a wastewater treatment plant according to an embodiment of the present invention;
wherein, in the figures, the respective reference numerals:
1-a raw water tank, 2-a mechanical filtering module, 20-a quartz sand filter, 21-an upper sewage inlet, 22-a lower purified water outlet, 23-a lower backwashing water inlet, 24-an upper backwashing water outlet, 3-a purified water tank, 4-a backwashing water pump, 5-a backwashing wastewater treatment module, 51-a backwashing wastewater tank, 52-a wastewater treatment device, 521-a treatment tank, 5211-a regulating region, 5212-a mixing region, 5213-a reaction region, 522-a sedimentation tank, 5221-a filler, 5222-a rotational flow sludge collection tank, 53-a sludge pressing device, 6-a blower, 12-a first pipeline, 23-a second pipeline, 24-a third pipeline, 25-a fourth pipeline, 512-a fifth pipeline and 26-a cylinder.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In an embodiment of the present invention, as shown in fig. 1, a sewage treatment system for separately treating backwash wastewater is provided, which includes a raw water tank 1, a mechanical filter module 2, a clean water tank 3 and a backwash water pump 4. In this embodiment, the raw water tank 1, the mechanical filter module 2, and the clean water tank 3 are sequentially communicated along a sewage flow direction, and the backwash water pump 4 is respectively communicated with the mechanical filter module 2 and the clean water tank 3.
As shown in fig. 2, the mechanical filter module 2 is composed of a plurality of quartz sand filters 20 arranged in a parallel configuration. The plurality of quartz sand filters 20 are arranged in a parallel structure, and the purpose is to improve the sewage treatment capacity of the sewage treatment system per unit time and improve the equipment capacity. Specifically, the quartz sand filter 20 is filled with a plurality of layers of filter materials such as high-quality quartz sand and the like, and is mainly used for removing impurities such as suspended matters, silt and particles in water; the multi-medium screening program is of a vertical structure, adopts a full-automatic control system, selects a special carbon steel plate, is manufactured according to a standard pressing force container, and resists the pressure of 8kg/cm2。
As shown in fig. 1 and 3, the mechanical filter module 2 is provided with an upper sewage inlet 21, a lower purified water outlet 22, a lower backwash water inlet 23 and an upper backwash water outlet 24. In this embodiment, the mechanical filter module 2 is composed of a plurality of quartz sand filters 20, that is, the quartz sand filters 20 are provided with the upper sewage inlet 21, the lower purified water outlet 22, the lower backwash water inlet 23 and the upper backwash water outlet 24; the raw water tank 3 is communicated with the upper sewage inlet 21 through a first pipeline 12, the clean water tank 3 is communicated with the lower clean water outlet 22 through a second pipeline 23, and the output end of the back flush water pump 4 is communicated with the lower back flush water inlet 23 through a third pipeline 24. In the concrete operation process, the sewage warp of former pond 1 pipeline 12 gets into mechanical filter module 2 purifies filtration treatment, the rethread pipeline two 23 get into clean water reservoir 3, because of in the filterable silt of mechanical filter module 2 or other granule suspended pollutant keep somewhere, easily cause the jam and influence its filter effect, through back flush water pump 4 will clear water suction in the clean water reservoir 3 mechanical filter module 2 realizes keeping the operation of wasing of silt or other granule suspended pollutant in the mechanical filter module 2. It should be noted that, in order to better control the sewage in the raw water tank 1 to enter the mechanical filtration module 2, the first pipeline 12 is sequentially provided with a manual butterfly valve, a booster pump, a water stop valve, a manual butterfly valve and a pressure gauge along the water flowing direction; wherein the first pipeline 12 adopts a sewage pipe to resist the corrosion of sewage and the like; the booster pump is a TD series pump, is set for ensuring the flow rate and pressure balance of system water supply, and is a maintenance-free mechanical seal pump in accordance with DIN24960 standard, and has high efficiency, low noise, and stable and reliable performance.
As shown in fig. 1, the sewage treatment system for separately treating backwash wastewater further comprises a blower 6, and the blower 6 is communicated with the mechanical filter module 2 through an air pipe 26. Specifically, the air pipe 26 is provided with a manual butterfly valve, a water stop valve and a flow meter in sequence along the air flowing direction; the air blower 6 is an EDFORD brand, meets the use of industrial standards, is high in efficiency, ensures stable and reliable performance, and is specially provided with a high-efficiency and unique flushing mode of pressurized air mixing in order to ensure the backwashing treatment effect of the quartz sand filter 20.
As shown in fig. 1, the sewage treatment system for separately treating backwash wastewater further includes a backwash wastewater treatment module 5 including a backwash wastewater tank 51, a wastewater treatment device 52 and a sludge press device 53. The mud pressing device 53 adopts a full-automatic control system to process high-concentration mud, separates mud from water, selects special matching parameters, is manufactured according to national standard of pressing force, and resists pressure of 30kg/cm2. In this embodiment, the backwash wastewater tank 51 is communicated with the upper backwash water outlet 24 through a fourth pipeline 25, the backwash wastewater tank 51 is communicated with the wastewater treatment device 52 through a fifth pipeline 512, and the bottom end of the wastewater treatment device 52 is communicated with a mud pressing device 53. The utility model adopts the upper backwashing water outlet 24 on the mechanical filtering module 2 to be communicated with the backwashing wastewater treatment module 5, so that the wastewater after the mechanical filtering module 2 is blown by the sewage treatment system is independently treated; the backwashing wastewater of the existing sewage treatment system is not directly returned to the water inlet end to be mixed with the sewage to be treated, and flows into the mechanical filtering module together for filtering again, so that the defects that the total amount of sewage treatment in the sewage treatment system and the consumption of organic matters and carbon sources in a subsequent biochemical pool are increased and the long-acting effect of the quartz sand filter is influenced because silt or other particle suspended pollutants are not cleaned all the time in the existing treatment mode are effectively overcome. It should be noted that, in order to better control the wastewater in the backwashing wastewater tank 51 to enter the wastewater treatment device, a manual butterfly valve, a booster pump, a water stop valve, a manual butterfly valve and a pressure gauge are sequentially arranged in the pipeline five 512 along the water flowing direction; the booster pump is a TD series pump, and in order to ensure the flow rate of pumping water of the system and meet the requirement of subsequent process water, the maintenance-free mechanical seal pump which meets the DIN24960 standard has the advantages of high efficiency, low noise and stable and reliable performance.
As shown in fig. 4, the wastewater treatment apparatus 52 includes a treatment tank 521 communicated with the backwashing wastewater tank 51 and a sedimentation tank 522 communicated with the treatment tank; the treatment tank 521 is sequentially provided with an adjusting area 5211, a mixing area 5212 and a reaction area 5213 according to the process requirements required by wastewater treatment, the adjusting area 5211 is communicated with the mixing area 5212, the mixing area 5212 is communicated with the reaction area 5213, and wastewater is subjected to flocculation on suspended matters and colloidal substances contained in the wastewater through the treatment tank 521. The main working principle is that organic matters in water are solidified through adjusting PH and adding a flocculating agent and then carrying out chemical reaction, then the solidified suspended matters in the water are precipitated in the sedimentation tank 522, precipitates are discharged to the mud pressing device 53 through a pipeline to press filter residues, waste residues after the filter residues can be directly bagged and conveyed away, and the water outlet pipe of the sedimentation tank 521 is directly discharged to a drain ditch after being filtered.
Further, the adjusting region 5211 is an acid-base PH adjusting region. The purpose of the structural design is to neutralize the pH value in the sewage to meet the process requirement, so that the pH value in the sewage meets the subsequent processing requirement.
Further, the mixing zone 5212 is a mixing zone where polyaluminum chloride-PAC material is dosed with the contaminated water. The structural design aims at putting polyaluminium chloride-PAC substances according to a certain proportion, the PAC has large molecular weight, the polyaluminium chloride-PAC substances are dissolved in water and exist in a hydrated complex ion state of aluminum, the surface of the polyaluminium chloride-PAC substances is provided with positive charges, and two ions with opposite charges in sewage are adsorbed to form large floccules; it has flocculation effect on silt, suspended matter and colloidal matter in sewage to reduce the post-treatment load and make sewage reach the discharge standard.
Further, the reaction zone 5213 is a chemical reaction zone where polyacrylamide-PAM species are dosed with the mixed zone influent species. The structural design aims at putting a polyacrylamide-PAM substance according to a certain proportion, and using the polyacrylamide-PAM substance in cooperation with an aluminum chloride-PAC substance, wherein PAM is a high-molecular flocculant with a linear or branched long-chain structure and is divided into cationic, anionic and nonionic types, the PAM is tangled with other polymers by utilizing the adsorption and bridging effects and is condensed into larger floccules, and the larger floccules are easily separated from water by selecting precipitates according to the specific weight of the floccules; the separation effect of silt, suspended matters, colloidal substances and water is better, and the dosing cost is reduced, so that the wastewater treatment device 52 has the advantages of low cost, strong adaptability and the like.
As shown in fig. 4, a filler 5221 and a swirling flow sludge collecting groove 5222 are arranged in the sedimentation tank 522. Specifically, wherein the packing 5221 is placed in the middle of the settling tank 522, the packing 5221 further filters the water in the settling tank 522; in addition, whirl collection mud groove 5222 is funnel formula structure, and it arranges in the bottom of sedimentation tank 522, whirl collection mud groove 5222 bottom is equipped with the blow off pipe, is equipped with the valve on the blow off pipe, is convenient for silt, suspended solid and colloidal substance's sedimentation separation.
As shown in fig. 1, the raw water tank 1, the clean water tank 3 and the backwashing wastewater tank 51 are all provided with liquid level transmitters and drainage ditches. Specifically, when the water body in the monitoring pool of the liquid level transmitter is at a low level, the water body is fed back to a control system of the sewage treatment system, and the water body in the previous process is started to automatically supply the water body; the drainage ditch is arranged to automatically realize automatic drainage when the water level in the pond is higher than a warning line; thereby realizing that the water bodies in the raw water tank, the clean water tank and the backwashing wastewater tank have automatic water supply and drainage functions.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A sewage treatment system for independently treating backwash wastewater comprises a raw water tank, a mechanical filtration module, a clean water tank and a backwash water pump, wherein the raw water tank, the mechanical filtration module and the clean water tank are sequentially communicated along a sewage flow direction, and the backwash water pump is respectively communicated with the mechanical filtration module and the clean water tank; the mechanical filtering module is provided with an upper sewage inlet, a lower purified water outlet, a lower backwashing water inlet and an upper backwashing water outlet, the raw water tank is communicated with the upper sewage inlet through a first pipeline, the purified water tank is communicated with the lower purified water outlet through a second pipeline, and the output end of the backwashing water pump is communicated with the lower backwashing water inlet through a third pipeline; the method is characterized in that: the backwashing wastewater treatment module comprises a backwashing wastewater pool, a wastewater treatment device and a mud pressing device, wherein the backwashing wastewater pool is communicated with the upper backwashing water outlet through a pipeline four, the backwashing wastewater pool is communicated with the wastewater treatment device through a pipeline five, and the bottom end of the wastewater treatment device is communicated with the mud pressing device.
2. The sewage treatment system for separately treating backwash wastewater as set forth in claim 1, wherein: the wastewater treatment device comprises a treatment tank communicated with the backwashing wastewater tank and a sedimentation tank communicated with the treatment tank; the treatment tank is sequentially provided with an adjusting area, a mixing area and a reaction area according to the process requirements required by wastewater treatment, the adjusting area and the mixing area are communicated with each other, the mixing area and the reaction area are communicated with each other, and wastewater is flocculated by suspended matters and colloidal substances contained in the wastewater through the treatment tank.
3. The sewage treatment system for separately treating backwash wastewater as set forth in claim 2, wherein: the adjusting area is an acid-base pH value adjusting area.
4. The sewage treatment system for separately treating backwash wastewater as set forth in claim 2, wherein: the mixing zone is a mixing zone for putting the polyaluminium chloride-PAC substance and sewage.
5. The sewage treatment system for separately treating backwash wastewater as set forth in claim 2, wherein: the reaction zone is a chemical reaction zone for feeding polyacrylamide-PAM substances and inflow substances of the mixing zone.
6. The sewage treatment system for separately treating backwash wastewater as set forth in claim 2, wherein: a filler and a rotational flow sludge collecting groove are arranged in the sedimentation tank; the filler is arranged in the middle of the sedimentation tank, and the rotational flow sludge collecting tank is of a funnel type structure and is arranged at the bottom of the sedimentation tank.
7. The sewage treatment system for separately treating backwash wastewater as set forth in any one of claims 1 to 6, wherein: the air blower is communicated with the mechanical filtering module through an air pipe; the trachea is equipped with manual butterfly valve, stagnant water valve and flowmeter along the air flow direction in proper order.
8. The sewage treatment system for separately treating backwash wastewater as set forth in claim 7, wherein: the mechanical filtering module consists of a plurality of quartz sand filters arranged in a parallel structure.
9. The sewage treatment system for separately treating backwash wastewater as set forth in claim 1, wherein: the pipeline I and the pipeline V are sequentially provided with a manual butterfly valve, a booster pump, a water stop valve, a manual butterfly valve and a pressure gauge along the flowing direction of the water body.
10. The sewage treatment system for separately treating backwash wastewater as set forth in claim 1, wherein: the raw water tank, the clean water tank and the backwashing wastewater tank are all provided with liquid level transmitters and drainage ditches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445468.5U CN213680165U (en) | 2020-10-28 | 2020-10-28 | Sewage treatment system for independently treating backwashing wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445468.5U CN213680165U (en) | 2020-10-28 | 2020-10-28 | Sewage treatment system for independently treating backwashing wastewater |
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| CN213680165U true CN213680165U (en) | 2021-07-13 |
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| CN202022445468.5U Expired - Fee Related CN213680165U (en) | 2020-10-28 | 2020-10-28 | Sewage treatment system for independently treating backwashing wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910412A (en) * | 2022-12-31 | 2023-04-04 | 中南建筑设计院股份有限公司 | A decay tank system with sediment flushing function and its application method |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910412A (en) * | 2022-12-31 | 2023-04-04 | 中南建筑设计院股份有限公司 | A decay tank system with sediment flushing function and its application method |
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