CN108218121B - Domestic sewage recovery treatment method - Google Patents
Domestic sewage recovery treatment method Download PDFInfo
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- CN108218121B CN108218121B CN201810033277.2A CN201810033277A CN108218121B CN 108218121 B CN108218121 B CN 108218121B CN 201810033277 A CN201810033277 A CN 201810033277A CN 108218121 B CN108218121 B CN 108218121B
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- 239000010865 sewage Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- 238000004062 sedimentation Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 19
- 238000005189 flocculation Methods 0.000 claims abstract description 14
- 230000016615 flocculation Effects 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 claims description 80
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- -1 polyethylene Polymers 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 9
- 239000004917 carbon fiber Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 2
- 239000010802 sludge Substances 0.000 description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000008394 flocculating agent Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 238000005276 aerator Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- 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
- C02F2301/02—Fluid flow conditions
- C02F2301/024—Turbulent
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a domestic sewage recovery treatment method, which comprises the following steps: (1) after the domestic sewage passes through the flocculation tank and the sedimentation tank, the clean water is lifted to the biochemical tank; (2) continuously aerating the biochemical pool, and reacting for 1-2 h; (3) and (4) flowing the reacted water into an inclined plate sedimentation tank, and flowing the settled clear water into a reservoir for later use. In the invention, the sewage can be treated and treated simply by flocculation, sedimentation, biochemistry and inclined plate sedimentation, a plurality of bottom pool bodies are not required to be built, and land resources are saved to a great extent; and the biochemical tank can generate turbulent flow in the biochemical tank in an aeration mode, so that the filler is ensured to be fully contacted with the sewage, and the sewage treatment efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of domestic sewage treatment, and particularly relates to a domestic sewage recovery treatment method.
Background
The traditional domestic sewage treatment method is generally a grating-coagulation-precipitation-aerobic-anaerobic-anoxic-aerobic-secondary precipitation-reservoir. The process is complicated in the mode, the occupied area is large, and the input cost of wastewater treatment is high; and indexes of COD and suspended matters in the purified sewage still cannot reach the discharge standard.
Disclosure of Invention
The invention provides a domestic sewage recovery treatment method with small occupied area and good water treatment effect to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a domestic sewage recovery treatment method comprises the following steps:
(1) after the domestic sewage passes through the flocculation tank and the sedimentation tank, the clean water is lifted to the biochemical tank;
(2) continuously aerating the biochemical pool, and reacting for 1-2 h;
(3) and (4) flowing the reacted water into an inclined plate sedimentation tank, and flowing the settled clear water into a reservoir for later use.
Further, the biochemical pool is filled with filler.
Further, the filler is made of activated carbon fiber and polyethylene fiber.
Furthermore, the weight ratio of the active carbon fiber to the polyethylene fiber is 2-3: 1-1.5.
Further, the aeration time in the biochemical pool is 1.2-1.8h, and the aeration amount is 10-20L/h; when the aeration time is less than 1.2h and the aeration amount is less than 10L/h, the turbulence effect in the biochemical tank cannot meet the requirement on sewage treatment, and the sewage treatment effect is poor; when the aeration time is longer than 1.8h and the aeration amount is longer than 20L/h, the turbulence effect in the biochemical pool is basically maintained, so that the excessive charging gas only causes energy consumption loss.
Furthermore, a mud scraping device for scraping the sediment in the sedimentation tank is arranged in the sedimentation tank; through the setting of scraping mud device, effectively strike off the mud of sedimentation tank internal deposition.
Further, the mud scraping device comprises a rotating part, a supporting part connected with the rotating part and a plurality of mud scraping components arranged on the supporting part at intervals; the mud scraping component comprises a mud scraping plate and a mud scraping piece, and the mud scraping piece is detachably connected with the mud scraping plate through a connecting component. The domestic sewage treatment device is provided with the sedimentation tank, so that the domestic sewage enters the sedimentation tank, solid matters in the sedimentation tank sink to the bottom of the sedimentation tank, a large amount of solid pollutants in the sewage can be conveniently removed, and the subsequent sewage treatment process can be conveniently carried out; the sludge scraping device is arranged in the sedimentation tank, so that sludge sinking into the bottom of the sedimentation tank can be scraped to the center of the sedimentation tank, the sludge in the sedimentation tank is discharged through the sludge discharge pipeline arranged at the bottom of the sedimentation tank, then the sludge is uniformly treated, the sludge is prevented from accumulating in the sedimentation tank, a large number of microorganisms are prevented from breeding in the sedimentation tank, and the water body pollution is prevented from being aggravated; the rotating piece and the supporting piece are arranged, and the rotating piece rotates to drive the supporting piece to rotate along with the rotating piece, so that the mud scraping component is driven to effectively scrape mud clean; the mud scraping component is arranged into the mud scraping piece and the mud scraping plate, the mud scraping plate can fix the mud scraping piece, can prevent the scraped mud from exceeding the mud scraping piece and falling into the original position again, and can effectively limit the flow direction of the mud when the mud is scraped, so that the mud is mutually accumulated and flows towards the center of the sedimentation tank; the mud scraping piece is arranged to scrape the mud at the bottom and remove the mud at the bottom of the sedimentation tank; the mud scraping piece is made of wear-resistant plastic, has good wear resistance and is not easy to wear, so that the mud scraping piece has long service life and strong mud scraping capacity on the bottom of the sedimentation tank; the connecting part is arranged, so that the mud scraping piece can be conveniently installed on the mud scraping plate, the mud scraping piece can be conveniently replaced after long-term use, the mud scraping piece is conveniently assembled and disassembled on the connecting part, and the installation efficiency is high; the connecting part can also float up and down, so that the device can effectively move towards the bottom of the sedimentation tank under the condition that the bottom of the sedimentation tank is blocked by a bump and the like, and the device can stably run.
Further, the connecting part comprises an elastic part connected with the mud scraping plate and a connecting part connected with the elastic part, and the mud scraping part is detachably connected with the connecting part; the elastic piece is arranged to keep the mud scraping piece to be in close contact with the bottom of the sedimentation tank, so that mud at the bottom of the sedimentation tank is effectively scraped completely, the mud scraping piece is ensured to move downwards by the elastic piece even after the mud scraping piece is abraded to a certain degree, the mud scraping piece can still be in close contact with the bottom of the sedimentation tank, and the service life of the mud scraping piece is effectively prolonged; meanwhile, in the process of scraping mud, if the bottom of the sedimentation tank is provided with a bulge and the like, the mud scraping piece can move up and down by a certain distance, so that the mud scraping piece is prevented from being damaged; and set up the connecting piece and can be convenient for scrape the installation of mud spare, the guarantee is scraped the stability of mud spare at the mud in-process.
Furthermore, a placing cavity is arranged on the mud scraper, and at least part of the elastic piece is arranged in the placing cavity; the mud scraping plate is provided with the placing cavity, so that the elastic part can be protected, and the elastic part is prevented from being corroded due to the fact that mud is stuck on the elastic part; the setting is placed the chamber and can also be spacing to the elastic component, and the guarantee elastic component can only be along activity from top to bottom, avoids the elastic component crooked and causes the mud scraping piece to one side bending.
In conclusion, the sewage treatment and treatment process can be simple and easy only through flocculation, sedimentation, biochemistry and inclined plate sedimentation, a large number of bottom pool bodies do not need to be built, and land resources are saved to a great extent; and the biochemical tank can generate turbulent flow in the biochemical tank in an aeration mode, so that the filler is ensured to be fully contacted with the sewage, and the sewage treatment efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural diagram of the mud scraping component of the invention.
Fig. 4 is an enlarged view of a in fig. 3.
Fig. 5 is an enlarged view of B in fig. 3.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
Example 1
A domestic sewage recovery treatment method comprises the following steps: (1) after the sewage passes through the flocculation tank and the sedimentation tank, the clean water is lifted to a biochemical tank; adding a flocculating agent into the flocculation tank in the reaction process in the flocculation tank, wherein the flocculating agent is specifically polyaluminium chloride; a mud scraping device 2 is arranged in the sedimentation tank, and mud deposited at the bottom of the sedimentation tank is scraped by the mud scraping device; (2) continuously aerating the biochemical pool, and reacting for 1 h; the aeration operation is specifically that gas is introduced into the biochemical tank through an aerator, and the gas can be air or oxygen; specifically, the aeration time is 1.2h, and the aeration amount is 10L/h; filling filler is filled in the biochemical pool, the filler is made of active carbon fiber and polyethylene fiber, and specifically, the weight ratio of the active carbon fiber to the polyethylene fiber is 2: 1; (3) the water after reaction flows into the inclined plate sedimentation tank, the clear water after sedimentation flows into the reservoir for standby, and the structure of the inclined plate sedimentation tank is the prior art and is not described any more.
As shown in fig. 1-5, the sedimentation tank 1 is a conical tank, and the sedimentation tank 1 is formed by pouring cement; a sludge discharge pipeline is connected to the center of the bottom of the sedimentation tank 1, sludge scraped by the sludge scraping device 2 enters the sludge discharge pipeline and is discharged through the sludge discharge pipeline, and the specific sludge discharge pipeline is the prior art, so that the detailed description is omitted; the mud scraping device 2 comprises a motor 20, a rotating part 21, a supporting part 22 and a mud scraping part 3, wherein the rotating part 21 is a metal rod vertical to the horizontal plane, the upper end of the rotating part 21 is connected with the motor 20, and the rotating part 21 is driven to rotate by the motor 20; the supporting piece 22 is a metal rod with an end fixed on the rotating piece 21, the supporting piece 22 is parallel to the bottom inclined plane of the sedimentation tank 1, the sludge scraping components 3 are arranged on the rotating piece 21, the number of the sludge scraping components 3 is multiple, and the spacing distances between two adjacent sludge scraping components 3 are the same; the mud scraping component 3 comprises a mud scraping plate 31 and a mud scraping piece 32 which are connected with the supporting piece 22, the mud scraping plate 31 is a metal plate, the mud scraping piece 32 is a wear-resistant plastic plate, and the mud scraping piece 32 is detachably connected with the mud scraping plate 31 through a connecting component 4.
Specifically, the connecting part 4 includes a plurality of elastic members 41 and a connecting member 42, the elastic members 41 are springs, and the connecting member 42 is a thick metal strip; a plurality of placing cavities 311 are arranged on the mud scraper 31 at intervals, the placing cavities 311 are cylindrical cavities, the distance between two adjacent placing cavities 311 is the same, the number of the elastic pieces 41 is the same as that of the placing cavities 311, each elastic piece 41 is correspondingly placed into one placing cavity 311, the upper end part of each elastic piece 41 is fixedly connected with the bottom of the placing cavity 311, and the lower end part of each elastic piece 41 extends out of the placing cavity 311 and is connected with the connecting piece 42; the specific connection is that a plurality of connecting cavities 425 are arranged on the connecting piece 42, and an adjusting piece 43 is movably connected to the end part of the elastic piece 41; the adjusting piece is arranged to penetrate into the connecting cavity, so that the adjusting piece is in threaded connection with the inner wall of the connecting cavity, and the lower part of the elastic piece is fixed; equally, through rotating the regulation, the hardness of steerable elastic component is convenient for adjust the elastic component as required and produce decurrent pressure size to the connecting piece, and then steerable pressure between mud piece and the sedimentation tank bottom of scraping improves the mud efficiency of scraping of mud piece.
The adjusting part 43 comprises an adjusting part 431 and a screwing part 432, the adjusting part 431 and the screwing part 432 are integrally formed, the adjusting part 431 is a hexagonal metal block, a through hole 436 for the end part of the elastic part 41 to pass through is arranged in the middle of the adjusting part 431, the screwing part 432 is a metal column with a hollow inner part forming a cavity 435, and an external thread is arranged on the outer wall of the screwing part 432; the end of the elastic member 41 is inserted into the cavity 435 through the through hole 436, and then a metal plate is welded to the elastic member 41, the metal plate forming the retaining protrusion 44 provided on the end of the elastic member 41, an upper end surface of the retaining protrusion 44 being in contact with a lower end surface of the adjustment portion 431, thereby restricting the elastic member 41 from being disengaged from the adjustment member 44; by this arrangement, the adjusting member 44 can rotate relative to the elastic member 41; therefore, when in connection, the adjusting piece 44 is screwed into the connecting cavity 425, thereby realizing the detachable connection between the elastic piece 41 and the connecting piece 42; the adjusting part is arranged, so that when the adjusting part needs to be adjusted, equipment such as a wrench and the like can be clamped on the adjusting part to rotate the whole adjusting part, and the use is convenient; similarly, the adjusting part can limit the whole adjusting piece from entering the connecting cavity, and can also enhance the thickness of the upper end of the adjusting piece and the integral strength of the device; the threaded connection part can be screwed into the placing cavity, and the compression strength of the elastic part is effectively controlled by mutual limitation of the external thread of the threaded connection part and the internal thread of the connecting cavity; and set up regulating part and spiro union portion into integrated into one piece, can effectively strengthen the bulk strength of regulating part, improve the life of regulating part.
Further, a concave portion 310 is respectively arranged on the left and the right sides of the mud scraper 31, a fixing member 33 is fixed on each concave portion 310 through a screw, the lower end surface of the fixing member 33 extends outwards to form a fixing portion 331, and the fixing portion 331 and the fixing member 33 are integrally formed; the fixing piece is arranged to protect the lower end part of the elastic piece so as to be matched with the placing cavity and wrap the elastic piece integrally; similarly, the fixing piece can limit the connecting piece, so that the connecting piece is further prevented from left and right offset, the fixing piece can be used for conveniently dismounting the connecting piece, when the connecting piece is mounted, the lower part of the elastic piece is exposed outside and can be easily mounted with the connecting piece, and then the fixing piece is mounted, so that the mounting mode is simple, and the connecting piece is convenient to replace; set up the fixed part and penetrate to first recess, the scope that can effectual restriction connecting piece activity from top to bottom, and still can further ensure silt can't enter into between two mountings of elastic component, strengthen the protection to the elastic component.
The connecting member 42 is provided with a first groove 421, after the upper part of the fixing member 33 is fixed in the concave part 310, the fixing part 331 penetrates into the first groove 421, and the width of the first groove 421 is wide, so that when the connecting member 42 is displaced up and down, the fixing part 331 can move up and down relative to the first groove 421; by the arrangement of the fixing member 33; the left and right side walls of the connecting piece 33 are respectively provided with a second groove 422, the second groove 422 is arranged below the first groove 421, and the bottom of the second groove 422 is vertically provided with a first extending part 423; the mud scraper 32 is provided with a retaining part 321, the retaining part 321 penetrates into the second groove 422, the lower end surface of the retaining part 321 extends downwards to form a second extending part 323, and the second extending part 323 is in contact with the first extending part 423; in order to fix the mud scraping piece 32 better, a bolt is respectively arranged on the left end and the right end of the mud scraping piece 32 in a penetrating way, and the bolt is connected with the connecting piece 42; (ii) a The second groove is arranged, so that when the mud scraping piece is installed, the anti-falling part penetrates into the second groove from the end part of the second groove, the stable connection between the mud scraping piece and the fixing piece is guaranteed, and the mud scraping piece cannot fall downwards; similarly, the arrangement mode also ensures that the mud scraping piece cannot deviate left and right relative to the connecting piece, and the mud scraping efficiency is ensured; the provision of the first and second extensions may enhance the stability between the scraper and the connecting member.
Further, an arc-shaped surface 301 is arranged on the mud scraping plate 31, the arc-shaped surface 301 is a side surface of the mud scraping plate 31, a plurality of convex ribs 302 are arranged on the arc-shaped surface 301, and the convex ribs 302 are bent; for better use, a rubber block is provided at the lower end of the fixing member 33 on the side of the arc surface 301, and the rubber block can effectively prevent sludge from entering into the first recess 421 and the second recess 422 of the connecting member 42.
Example 2
A domestic sewage recovery treatment method comprises the following steps: (1) after the sewage passes through the flocculation tank and the sedimentation tank, the clean water is lifted to a biochemical tank; adding a flocculating agent into the flocculation tank in the reaction process in the flocculation tank, wherein the flocculating agent is specifically polyaluminium chloride; a mud scraping device 2 is arranged in the sedimentation tank, and mud deposited at the bottom of the sedimentation tank is scraped by the mud scraping device; (2) continuously aerating the biochemical pool, and reacting for 2 hours; the aeration operation is specifically that gas is introduced into the biochemical tank through an aerator, and the gas can be air or oxygen; specifically, the aeration time is 1.8h, and the aeration amount is 20L/h; filling filler is filled in the biochemical pool, the filler is made of active carbon fiber and polyethylene fiber, and specifically, the weight ratio of the active carbon fiber to the polyethylene fiber is 3: 1; (3) the water after reaction flows into the inclined plate sedimentation tank, the clear water after sedimentation flows into the reservoir for standby, and the structure of the inclined plate sedimentation tank is the prior art and is not described any more.
The structure of the mud scraper in this embodiment is the same as that in embodiment 1, and is not described again.
Example 3
A domestic sewage recovery treatment method comprises the following steps: (1) after the sewage passes through the flocculation tank and the sedimentation tank, the clean water is lifted to a biochemical tank; adding a flocculating agent into the flocculation tank in the reaction process in the flocculation tank, wherein the flocculating agent is specifically polyaluminium chloride; a mud scraping device 2 is arranged in the sedimentation tank, and mud deposited at the bottom of the sedimentation tank is scraped by the mud scraping device; (2) continuously aerating the biochemical pool, and reacting for 2 hours; the aeration operation is specifically that gas is introduced into the biochemical tank through an aerator, and the gas can be air or oxygen; specifically, the aeration time is 1.8h, and the aeration rate is 18L/h; filling filler is filled in the biochemical pool, the filler is made of active carbon fiber and polyethylene fiber, and specifically, the weight ratio of the active carbon fiber to the polyethylene fiber is 3: 1.2; (3) the water after reaction flows into the inclined plate sedimentation tank, the clear water after sedimentation flows into the reservoir for standby, and the structure of the inclined plate sedimentation tank is the prior art and is not described any more.
The structure of the mud scraper in this embodiment is the same as that in embodiment 1, and is not described again.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (1)
1. A domestic sewage recovery treatment method is characterized in that: the method comprises the following steps:
(1) after the domestic sewage passes through the flocculation tank and the sedimentation tank, the clean water is lifted to the biochemical tank;
(2) continuously aerating the biochemical pool, and reacting for 1-2 h; the biochemical pool is filled with filler; the filler is made of active carbon fibers and polyethylene fibers; the weight ratio of the active carbon fibers to the polyethylene fibers is 2-3: 1-1.5; the aeration time in the biochemical pool is 1.2-1.8h, and the aeration amount is 10-20L/h;
(3) the water after reaction flows into an inclined plate sedimentation tank, and the clear water after sedimentation flows into a reservoir for standby;
a mud scraping device for scraping the sediment in the sedimentation tank is arranged in the sedimentation tank;
the mud scraping device (2) comprises a rotating piece (21), a supporting piece (22) connected with the rotating piece (21) and a plurality of mud scraping components (3) arranged on the supporting piece (22) at intervals; the mud scraping component (3) comprises a mud scraping plate (31) and a mud scraping piece (32), and the mud scraping piece (32) is detachably connected with the mud scraping plate (31) through a connecting component (4);
the connecting part (4) comprises an elastic part (41) connected with the mud scraping plate (31) and a connecting part (42) connected with the elastic part (41), and the mud scraping part (32) is detachably connected with the connecting part (42);
the mud scraper (31) is provided with a plurality of placing cavities (311) at intervals, the placing cavities (311) are cylindrical cavities, the interval distance between two adjacent placing cavities (311) is the same, the number of the elastic pieces (41) is the same as that of the placing cavities (311), each elastic piece (41) is correspondingly placed into one placing cavity (311), the upper end part of each elastic piece (41) is fixedly connected with the bottom of the placing cavity (311), and the lower end part of each elastic piece (41) extends out of the placing cavity (311) and is connected with the connecting piece (42); a plurality of connecting cavities (425) are arranged on the connecting piece (42), and an adjusting piece (43) is movably connected to the end part of the elastic piece (41);
the adjusting piece (43) comprises an adjusting part (431) and a screw joint part (432), the adjusting part (431) and the screw joint part (432) are integrally formed, a through hole (436) for the end part of the elastic piece (41) to pass through is formed in the middle of the adjusting part (431), and an external thread is formed on the outer wall of the screw joint part (432); a metal sheet is welded on the elastic piece (41), the metal sheet forms a retaining convex part (44) arranged on the end part of the elastic piece (41), and the upper end surface of the retaining convex part (44) is contacted with the lower end surface of the adjusting part (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033277.2A CN108218121B (en) | 2018-01-14 | 2018-01-14 | Domestic sewage recovery treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033277.2A CN108218121B (en) | 2018-01-14 | 2018-01-14 | Domestic sewage recovery treatment method |
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| CN108218121A CN108218121A (en) | 2018-06-29 |
| CN108218121B true CN108218121B (en) | 2021-09-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7323108B1 (en) * | 2007-04-17 | 2008-01-29 | I. Kruger, Inc. | Combined biological and ballasted flocculation process for treating wastewater |
| CN102008839A (en) * | 2010-10-14 | 2011-04-13 | 北京恩菲环保股份有限公司 | Sedimentation tank |
| CN105617730A (en) * | 2014-11-20 | 2016-06-01 | 徐静 | Regulating-type central transmission mud scraper |
| CN106477806A (en) * | 2016-08-28 | 2017-03-08 | 开平市天美洗涤有限公司 | A kind of method of wastewater treatment |
-
2018
- 2018-01-14 CN CN201810033277.2A patent/CN108218121B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7323108B1 (en) * | 2007-04-17 | 2008-01-29 | I. Kruger, Inc. | Combined biological and ballasted flocculation process for treating wastewater |
| CN102008839A (en) * | 2010-10-14 | 2011-04-13 | 北京恩菲环保股份有限公司 | Sedimentation tank |
| CN105617730A (en) * | 2014-11-20 | 2016-06-01 | 徐静 | Regulating-type central transmission mud scraper |
| CN106477806A (en) * | 2016-08-28 | 2017-03-08 | 开平市天美洗涤有限公司 | A kind of method of wastewater treatment |
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| CN108218121A (en) | 2018-06-29 |
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