CN114105334A - Treatment method for filtering fine silt in urban sewage - Google Patents
Treatment method for filtering fine silt in urban sewage Download PDFInfo
- Publication number
- CN114105334A CN114105334A CN202111383554.0A CN202111383554A CN114105334A CN 114105334 A CN114105334 A CN 114105334A CN 202111383554 A CN202111383554 A CN 202111383554A CN 114105334 A CN114105334 A CN 114105334A
- Authority
- CN
- China
- Prior art keywords
- silt
- fine
- sand
- sewage
- treatment
- 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.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001914 filtration Methods 0.000 title claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000000047 product Substances 0.000 claims abstract description 8
- 208000005156 Dehydration Diseases 0.000 claims abstract description 7
- 230000018044 dehydration Effects 0.000 claims abstract description 7
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 7
- 239000006228 supernatant Substances 0.000 claims abstract description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- 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
- C02F3/02—Aerobic processes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a treatment method for filtering fine silt in urban sewage, which relates to the technical field of sewage treatment and solves the technical problem of low efficiency of the existing sewage containing silt for filtering treatment, and comprises the following steps of separating floating objects from silt mixtures by an inflow coarse and fine grid of the sewage containing a large amount of fine silt, lifting the separated silt mixtures into a combined cyclone by a feed pump of a hydraulic cyclone, separating a large amount of fine silt in the sewage into fine sand products and organic suspended matters by the combined cyclone under the action of a centrifugal force field, then flowing the fine sand products into a sand-water separator at the bottom of the combined cyclone for dehydration treatment, then flowing the dehydrated silt into a sand hopper for collection, discharging supernatant after the dehydration treatment into an incoming water grid well for standing treatment, finally, the cyclone sand setting tank commonly used in sewage plants is replaced, and the impact of fine silt on the sewage treatment process is reduced.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to the technical field of a treatment method for filtering fine silt in urban sewage.
Background
In recent years, with the advance of urbanization process and continuous construction, the amount of the inlet cement sand of the municipal sewage treatment plant is continuously increased greatly and is generally high, and the main reasons for high sand content of the inlet water include the following reasons: the sand amount is increased by human factors, the rainwater and sewage flow distribution is incomplete, and a sewage pipeline is damaged; therefore, a large amount of mud and sand enters the urban sewage treatment plant through the sewage pipe network, so that the content of suspended substances in the sewage of the urban sewage treatment plant far exceeds the designed concentration.
Based on the requirement of nitrogen and phosphorus removal of a biological treatment system of the existing sewage treatment plant on a carbon source, most sewage treatment plants cancel a primary sedimentation tank, and the rotational flow grit chamber widely applied by the existing sewage treatment plant can only remove sand grains with the grain size of more than 200um, while a large amount of high-concentration fine silt (the grain size is less than or equal to 200um) enters a subsequent biochemical treatment unit, so that the problems of serious silt sedimentation of the biochemical treatment system, greatly reduced biochemical sludge activity, different degrees of abrasion of aeration and stirring equipment, high operation cost of the sewage plant, low nitrogen and phosphorus removal efficiency and the like are caused, and the normal operation of the activated sludge system is influenced to a certain extent.
Therefore, a fine silt treatment system of the municipal sewage treatment plant is sought to replace a rotational flow grit chamber commonly used by sewage plants, so that the impact of the fine silt to a biochemical treatment unit of the sewage treatment plant is reduced, and the system has important practical significance on adverse effects on biochemical treatment processes, equipment and the like.
Disclosure of Invention
The invention aims to: in order to solve the technical problem, the invention provides a treatment method for filtering fine silt in municipal sewage.
The invention specifically adopts the following technical scheme for realizing the purpose:
a treatment method for filtering fine silt in municipal sewage comprises the following steps:
s1: separating floating objects and a sediment mixture by an inflow coarse and fine grid of sewage containing a large amount of fine silt;
s2: the separated silt mixture is lifted by a feed pump of the hydrocyclone and enters the combined cyclone, and a large amount of fine silt in the sewage is divided into fine sand products and organic suspended matters in the combined cyclone under the action of a centrifugal force field;
s3: and the fine sand product flows to a sand-water separator at the bottom of the combined cyclone for dehydration treatment.
S4: and the dewatered silt flows into a sand hopper to be collected, and the supernatant after dewatering is discharged into a water grid well to be kept stand.
Further, the organic suspended matter in the step S2 moves upward along with the inner cyclone, overflows through the top of the combined cyclone, and enters a subsequent biochemical treatment system.
Further, the diameter of the fine silt in the step S2 is in the range of 0.1-0.5 mm.
Further, in the step S3, the sand-water separator includes a mortar hopper and a hollow screw elevator, one end of the hollow screw elevator is connected to the bottom of the mortar hopper, the other end of the hollow screw elevator extends to the outside along the inner wall of the mortar hopper, and a driving screw device is arranged at the end of the hollow screw elevator, the rotating shaft of the driving screw device is connected to the rotating shaft of the hollow screw elevator, and a sand outlet is formed in the hollow screw elevator near one side of the driving screw device.
Furthermore, a water dispersion plate is arranged on the inner wall of the mortar hopper and connected with the mortar hopper.
Furthermore, an overflow pipe is arranged on the side wall of the mortar hopper and connected with the mortar hopper.
Further, a transfer hopper is arranged below the sand outlet.
Furthermore, the hydrocyclone equipment is made of carbon steel lining rubber and polyurethane.
The invention has the following beneficial effects:
1. the coarse and fine grids can effectively isolate floating objects to be retained on the upper layer, and sewage of fine silt is discharged from the water outlet of the lower layer; then a hydrocyclone feed pump is adopted for lifting, fine silt in the municipal sewage is conveyed into a combined hydrocyclone, the mixed sewage centrifugally moves through a plurality of hydrocyclones in the combined hydrocyclone, under the action of centrifugal force, coarse and heavy particulate matters are thrown to a wall of the device and rotate downwards to be discharged together with formed concentrated solution, smaller particulate matters are discharged along with secondary upward vortex after rotating to a certain degree, the coarse and heavy particulate matters are thrown to the wall of the device and rotate downwards to be discharged together with the formed concentrated solution and then enter a sand hopper for collection, and supernatant after dehydration treatment is discharged into a water grating well and is intercepted and filtered by coarse and fine grating channels with different diameters of gratings in the water grating well; the pollutant load of sewage has been reduced through foretell mode, and the follow-up water pump that uses of protection and the effect that prevents the pipeline jam separate the sewage waste collection of different degrees simultaneously, and replace the whirl grit chamber that sewage plant used commonly, reduce slight silt particle and bring the impact for sewage treatment plant's biochemical treatment unit.
2. The thick liquid that the thick and heavy particulate matter that the mortar material fill that sets up separated combination formula swirler formed is concentrated and is collected, promotes to certain height through hollow screw elevator, and the mode that its adopted is: auger blade rotates in the hollow screw elevator of drive screw means drive, promotes coarse and heavy particulate matter along the pipe wall to the sand outlet and discharges, and this process can also separate solid and liquid, and the design water-dispersing plate is used for the thick liquid dispersion of granule, prevents simultaneously that its difference in height from producing the splash and polluting the surrounding environment, sets up the transportation hopper and is used for the coarse sand to collect in the dolly so that follow-up fixed point is put in and is handled.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic structural view of a sand-water separator of the present invention;
reference numerals: 1. a coarse and fine grid; 2. a hydrocyclone feed pump; 3. a combined swirler; 4. a sand-water separator; 5. a biochemical treatment system; 6. a mortar hopper; 7. a hollow spiral elevator; 71. a sand outlet; 8. driving the screw device; 9. a water-dispersing plate; 10. an overflow pipe; 11. transfer hopper, 12 water grid well.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1-2, the present embodiment provides a treatment method for filtering fine silt in municipal sewage, which comprises the following steps:
s1: sewage containing a large amount of fine silt flows into the coarse and fine grid 1 to separate the mixture of the floating objects and the silt;
s2: the separated silt mixture is lifted by a feed pump 2 of the hydrocyclone and enters a combined cyclone 3, and a large amount of fine silt in the sewage is divided into a fine sand product and an organic suspended matter by the combined cyclone 3 under the action of a centrifugal field; lifting by using a hydrocyclone feed pump 2, conveying fine silt in the municipal sewage into a combined cyclone 3, and performing centrifugal motion on the mixed sewage by feeding the mixed sewage through a plurality of cyclones;
s3: the fine sand product flows to a sand-water separator 4 at the bottom of the combined cyclone 3 for dehydration treatment.
S4: the dewatered silt flows into a sand hopper to be collected, and the supernatant after dewatering is discharged into a water grid well 12 to be kept stand.
In the process of using the method, the coarse and fine grids 1 can effectively isolate floating objects from staying on the upper layer, and sewage of fine silt is discharged from the water outlet on the lower layer; adopt hydrocyclone feed pump 2 to promote again, send the fine silt in the municipal sewage to combination formula swirler 3 in, a plurality of hydrocyclones through in the combination formula swirler 3 are to mixing sewage centrifugal motion, and the principle is: under the action of centrifugal force, coarse and heavy particulate matters are thrown to the wall of the water grid well and rotate downwards to be discharged together with formed concentrated liquid, smaller particulate matters are discharged along with secondary upward-rotating vortex after rotating to a certain degree, the coarse and heavy particulate matters are thrown to the wall of the water grid well and rotate downwards to be discharged together with the formed concentrated liquid and then enter a sand hopper to be collected, and supernatant after dehydration treatment is discharged into the water grid well 12 and is intercepted and filtered by coarse and fine grid channels with different diameters of grids in the water grid well 12; the pollutant load of sewage has been reduced through foretell mode, and the effect of the follow-up water pump of using of protection and preventing pipe blockage separates the sewage waste collection of different degrees simultaneously.
Example 2:
as shown in fig. 1-2, the organic suspended matter in S2 moves upward along with the inner rotational flow, overflows from the top of the combined cyclone 3, and then enters a subsequent biochemical treatment system, the biochemical treatment system performs acidification hydrolysis and nitrification denitrification to reduce the concentration of organic matters and remove part of ammonia nitrogen, and then enters an aerobic biochemical reaction process in an inflow oxidation tank to further improve the water quality, wherein organic pollutants are degraded through biological oxidation and adsorption, the effluent automatically flows to a secondary sedimentation tank to perform solid-liquid separation, the supernatant in the sedimentation tank flows to a disinfection tank, and is dissolved by chlorine tablets in a contact manner to kill harmful bacteria in water and then discharged after reaching standards, and if the wastewater does not reach standards, the wastewater flows back to the combined cyclone 3 for recycling treatment.
Example 3:
as shown in fig. 1-2, the diameter of the fine silt separation particle size range in the S2 step is 0.1-0.5 mm, and in a preferred embodiment, when d10 is 0.15mm, 98% -99% of the fine silt is effectively separated by a hydrocyclone, and the classification particle size range is 0.1-0.5 mm; the separation effect is optimal; the hydrocyclone equipment is made of carbon steel lining rubber and polyurethane, and stable and reliable operation of the equipment in a state of using tiny beads is guaranteed.
Example 4:
as shown in fig. 1-2, in step S3, the sand-water separator includes a mortar hopper 6 and a hollow screw elevator 7, one end of the hollow screw elevator 7 is connected to the bottom of the mortar hopper 6, the other end of the hollow screw elevator 7 extends to the outside along the inner wall of the mortar hopper 6, and a driving screw 8 is provided at the end thereof, the rotating shaft of the driving screw 8 is connected to the rotating shaft of the hollow screw elevator 7, and a sand outlet 71 is provided on the hollow screw elevator 7 near one side of the driving screw 8, wherein the mortar hopper 6 is provided to intensively collect the thick liquid formed by the coarse and heavy particulate matters separated by the combined cyclone, and the thick liquid is lifted to a certain height by the hollow screw elevator 7 in the following manner: auger blade rotates in the hollow screw elevator 7 of drive screw means 8 drive, promotes coarse and heavy particulate matter along the pipe wall to go out sand mouth 71 and discharges, and this process can also separate solid and liquid, and in order to make the thick liquid dispersion of granule, fixed mounting water-dispersing plate 9 on the inner wall of mortar liquid fill 6, in order to make the liquid of constantly flowing in can spill over from the top, at the side wall mounting overflow pipe 10 of mortar liquid fill 6, to upper liquid drainage, ensure that liquid level keeps at a take the altitude the below of sand mouth 71 is provided with transports hopper 11, sets up and transports hopper 11 and is used for the coarse sand to collect in the dolly so that follow-up fixed point is put in and is handled.
Claims (8)
1. A treatment method for filtering fine silt in urban sewage is characterized by comprising the following steps:
s1: separating floating objects and a sediment mixture by an inflow coarse and fine grid of sewage containing a large amount of fine silt;
s2: the separated silt mixture is lifted by a feed pump of the hydrocyclone and enters the combined cyclone, and a large amount of fine silt in the sewage is divided into fine sand products and organic suspended matters in the combined cyclone under the action of a centrifugal force field;
s3: and the fine sand product flows to a sand-water separator at the bottom of the combined cyclone for dehydration treatment.
S4: and the dewatered silt flows into a sand hopper to be collected, and the supernatant after dewatering is discharged into a water grid well to be kept stand.
2. The method as claimed in claim 1, wherein the organic suspended matter in step S2 flows upward with the inner cyclone, and then overflows through the top of the combined cyclone to the subsequent biochemical treatment system.
3. The method as claimed in claim 1, wherein the diameter of the separated particle size range of the fine silt in step S2 is 0.1-0.5 mm.
4. The method as claimed in claim 1, wherein in step S3, the sand-water separator comprises a mortar hopper (6) and a hollow screw elevator (7), one end of the hollow screw elevator (7) is connected to the bottom of the mortar hopper (6), the other end of the hollow screw elevator (7) extends out of the body along the inner wall of the mortar hopper (6), and a driving screw device (8) is arranged at the end of the hollow screw elevator, the rotating shaft of the driving screw device (8) is connected to the rotating shaft of the hollow screw elevator (7), and a sand outlet (71) is opened on the hollow screw elevator (7) near the driving screw device (8).
5. A treatment process for filtering fine silt in urban sewage according to claim 4, characterized in that a water-dispersing plate (9) is arranged on the inner wall of said mortar hopper (6), said water-dispersing plate (9) being connected to said mortar hopper (6).
6. A treatment process for filtering fine silt in urban sewage according to claim 4, characterized in that an overflow pipe (10) is provided on the side wall of said mortar hopper (6), said overflow pipe (10) being connected to the mortar hopper (6).
7. A treatment process for filtering fine silt from urban sewage according to claim 4, characterized in that a transfer hopper (11) is provided below said sand outlet (71).
8. The method as claimed in claim 1, wherein the hydrocyclone is made of carbon steel lining rubber and polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111383554.0A CN114105334A (en) | 2021-11-19 | 2021-11-19 | Treatment method for filtering fine silt in urban sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111383554.0A CN114105334A (en) | 2021-11-19 | 2021-11-19 | Treatment method for filtering fine silt in urban sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114105334A true CN114105334A (en) | 2022-03-01 |
Family
ID=80438992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111383554.0A Pending CN114105334A (en) | 2021-11-19 | 2021-11-19 | Treatment method for filtering fine silt in urban sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114105334A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230029A (en) * | 2014-09-29 | 2014-12-24 | 重庆大学 | Concentrated and integrated sand and water separation device |
| CN104291469A (en) * | 2014-09-29 | 2015-01-21 | 重庆大学 | Reinforced fine sand removal system and method |
| CN109304257A (en) * | 2018-12-10 | 2019-02-05 | 北京北排装备产业有限公司 | A kind of city planting ductwork recycling sludge disposition integrated apparatus and its application method |
| CN112429915A (en) * | 2020-11-23 | 2021-03-02 | 安徽国祯环保节能科技股份有限公司 | Combined overflow sewage stage separation reinforced biological treatment process |
| CN113144698A (en) * | 2021-04-20 | 2021-07-23 | 中建环能科技股份有限公司 | Efficient pretreatment system and process for removing sand slag together |
-
2021
- 2021-11-19 CN CN202111383554.0A patent/CN114105334A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230029A (en) * | 2014-09-29 | 2014-12-24 | 重庆大学 | Concentrated and integrated sand and water separation device |
| CN104291469A (en) * | 2014-09-29 | 2015-01-21 | 重庆大学 | Reinforced fine sand removal system and method |
| CN109304257A (en) * | 2018-12-10 | 2019-02-05 | 北京北排装备产业有限公司 | A kind of city planting ductwork recycling sludge disposition integrated apparatus and its application method |
| CN112429915A (en) * | 2020-11-23 | 2021-03-02 | 安徽国祯环保节能科技股份有限公司 | Combined overflow sewage stage separation reinforced biological treatment process |
| CN113144698A (en) * | 2021-04-20 | 2021-07-23 | 中建环能科技股份有限公司 | Efficient pretreatment system and process for removing sand slag together |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111704319B (en) | Prefabricated modularized municipal sewage treatment system and sewage treatment method | |
| US8025798B2 (en) | Modular biological fluidized bed reactor system | |
| CN214167586U (en) | Railway tunnel construction effluent disposal system | |
| CN107473339B (en) | Mine water magnetic coagulation treatment device and process | |
| JP6067268B2 (en) | Water treatment system | |
| CN110496434A (en) | Desanding de-sludging device and implementation method in landfill leachate system for anaerobic treatment | |
| CN106630482B (en) | Sewage treatment device | |
| CN107585972A (en) | Grease processing waste water handling process and device | |
| CN201309852Y (en) | Sewage purification precipitator | |
| CN101898847B (en) | System for treating sewage containing nonylphenol polyoxyethylene ether and metabolin | |
| KR101184653B1 (en) | Cyclone type sewage disposal device for removing total phosphorus in treated sewage | |
| Shammas et al. | Sedimentation | |
| CN208949075U (en) | Novel anaerobic reactor | |
| CN111153558A (en) | Garbage transfer station leachate treatment device and treatment method thereof | |
| CN114105334A (en) | Treatment method for filtering fine silt in urban sewage | |
| CN2411049Y (en) | Cleaning tank for low-dirty pollution water | |
| CN215161957U (en) | Novel multi-functional high-speed sedimentation tank | |
| CN108946890A (en) | A kind of sewage disposal system integrating purification with concentration | |
| CN212403767U (en) | Processing system for high suspended substance mine water serving as circulating water replenishing water of power plant | |
| CN212375064U (en) | Coal mine water treatment system | |
| CN210814082U (en) | Desanding and descaling device in landfill leachate anaerobic treatment system | |
| CN208995320U (en) | Environment friendly washing Intergration system | |
| CN209797614U (en) | Sewage treatment reactor | |
| CN111732234A (en) | Treatment system and method for using high-suspended substance mine water as circulating water supplement water of power plant | |
| CN108862928A (en) | Environment friendly washing Intergration system |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220301 |