CN111233137A - Micro-power integrated equipment for rural domestic sewage treatment - Google Patents
Micro-power integrated equipment for rural domestic sewage treatment Download PDFInfo
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- CN111233137A CN111233137A CN202010088622.XA CN202010088622A CN111233137A CN 111233137 A CN111233137 A CN 111233137A CN 202010088622 A CN202010088622 A CN 202010088622A CN 111233137 A CN111233137 A CN 111233137A
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- 239000010865 sewage Substances 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000010802 sludge Substances 0.000 claims abstract description 62
- 238000005273 aeration Methods 0.000 claims abstract description 48
- 238000005192 partition Methods 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims abstract description 5
- 239000002893 slag Substances 0.000 claims description 5
- 239000012982 microporous membrane Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses micro-power integrated equipment for rural domestic sewage treatment, which comprises an integrated tank body; the inner cavity of the integrated tank body is divided into an inner cylindrical area, a middle ring cylindrical area and an outer ring cylindrical area by two concentric circular clapboards; the upper part of the inner cylindrical area is provided with a basket grid, and a water inlet pipeline of the integrated equipment is communicated with the basket grid; the inner cylindrical area is communicated with the middle cylindrical area; the middle ring column barrel area is provided with a micro-nano aeration system; the middle ring column tube area is communicated with the outer ring column tube area; the water inlet end and the water outlet end of the outer ring column tube area are isolated by a partition plate; the water outlet end of the outer ring column barrel area is provided with a water purification tank and a sludge tank, the water purification tank is communicated with the outer ring column barrel area through a clear water through hole, and the water outlet of the water purification tank is communicated with a water outlet pipeline of the integrated equipment; the sludge tank is communicated with the outer ring column barrel zone through a sludge lifting pipe, and the sludge lifting pipe is externally connected with an air pump through an air lifting pipe; the sludge tank is communicated with the middle ring column barrel zone through a sludge reflux hole.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to micro-power integrated equipment for rural domestic sewage treatment.
Background
With the continuous promotion of ecological civilization construction in China, after the traditional large and medium-sized urban sewage treatment, the domestic sewage treatment in small towns, suburban living areas, rural areas, leisure vacation spots and the like becomes a new treatment target. The large and medium-sized urban sewage treatment has a scale effect, can be used for centralized treatment after pipe network collection, has relatively dispersivity for new targets, often does not have the economic condition of nano-pipe centralized treatment from the economic technology perspective, and particularly shows remarkable effect on the aspect of emerging rural domestic sewage treatment. Therefore, in order to meet new treatment requirements, various environmental protection enterprises successively put forward various integrated sewage treatment equipment so as to meet the treatment of independent point source pollution and realize the resource utilization of sewage.
The small-sized integrated sewage treatment equipment is like a small-sized sewage treatment plant, structures such as a grating, a primary sedimentation tank, a biochemical tank, a sedimentation tank, a disinfection tank and the like are tightly connected by different process combination modes and a modular design concept, so that the treatment equipment with higher integration degree is formed. The small-sized integrated sewage treatment equipment has wide application range, small occupied area and investment and is very suitable for independent point source pollution treatment, so the small-sized integrated sewage treatment equipment is very widely applied in the rural domestic sewage treatment process.
At present, the small-sized integrated sewage treatment equipment commonly used in the market is made of glass fiber reinforced plastic materials, PE materials, carbon steel materials, stainless steel materials and the like according to the material category, and the small-sized integrated sewage treatment equipment is divided into an A/O process, an AAO process, an MBR process, an SBR process and the like according to the treatment process.
Although small-size integrated sewage treatment device development is good, various types of products emerge endlessly, but the integration degree still needs to be strengthened on the whole, and the problem that common product exists on the market at present mainly has:
(1) because the equipment size is smaller, the sludge and waste residue treatment is not considered, and the equipment is easy to block in the operation process.
(2) This type equipment often adopts the design of burying formula with undetachable as leading, and the maintenance is inconvenient in the later stage operation process.
(3) The resistance between the tanks of the equipment is overlarge, so that the head loss is large, and the on-site installation is not facilitated.
(4) The treatment effect is unstable, and the effluent can not stably meet the current national and local discharge standards.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides micro-power integrated equipment which is resistant to high pollution load and can automatically reflux sludge. By using the device, the rural domestic sewage treatment effect can be well improved, and the effluent is ensured to stably meet the corresponding discharge standard. Meanwhile, the equipment adopts a special circulation design, so that the water flow resistance is reduced, the loss of a water inlet head and a water outlet head of the equipment can be well reduced, and the installation adaptability is improved.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the micro-power integrated equipment for rural domestic sewage treatment comprises an integrated tank body (1); the inner cavity of the integrated tank body (1) is divided into an inner cylindrical area (3), a middle ring cylindrical area (4) and an outer ring cylindrical area (5) by two concentric circular clapboards (2); a basket grid (6) is arranged at the upper part of the inner cylindrical area (3), and a water inlet pipeline (7) of the integrated equipment is communicated with the basket grid (6) through a water hole (8) A; the inner cylindrical area (3) is communicated with the middle cylindrical area (4) through a water hole (9) at the bottom B; the middle ring column barrel area (4) is provided with a micro-nano aeration system, and the micro-nano aeration system comprises a micro-nano aeration air inlet pipe (10) externally connected with an air pump and a micro-nano aeration ring (11) which is communicated with the micro-nano aeration air inlet pipe (10) and is arranged on the inner bottom surface of the middle ring column barrel area (4); the middle ring column tube area (4) is communicated with the outer ring column tube area (5) through a middle C water through hole (12); the water inlet end and the water outlet end of the outer ring column tube area (5) are isolated by a partition plate (20); the water outlet end of the outer ring column barrel area (5) is provided with a water purifying tank (13) and a sludge tank (14), the water purifying tank (13) is communicated with the outer ring column barrel area (5) through a clean water through hole (15), and the water outlet of the water purifying tank (13) is communicated with a water outlet pipeline (16) of the integrated equipment; the sludge tank (14) is communicated with the outer ring column barrel zone (5) through a sludge lifting pipe (17), and the sludge lifting pipe (17) is externally connected with an air pump through an air lifting pipe (18); the sludge tank (14) is communicated with the middle ring column barrel area (4) through a sludge return hole (19).
Preferably, the radius of the cylindrical barrel area (3) is 20-30% of the radius of the integrated tank body (1).
Preferably, the inner diameter of the basket grid (6) is 400-600 mm; the aperture of the grid hole of the basket grid (6) is 2-5 mm.
Preferably, the ring width of the middle ring column tube area (4) is 40-50% of the radius of the integrated tank body (1).
Preferably, the micro-nano aeration air inlet pipe (10) is connected with an air pump through an internal thread joint; the micro-nano aeration ring (11) is fixed on the inner bottom surface of the middle ring column barrel area (4) through a bayonet.
Preferably, the surface of the micro-nano aeration ring (11) is a microporous membrane, and an ABS framework is arranged inside the micro-nano aeration ring (11).
Preferably, the ring width of the outer ring column tube area (5) is 25-35% of the radius of the integrated tank body (1).
Preferably, the distance between the sludge lifting pipe (17) and the bottom surface of the outer ring column barrel area (5) is 50-100 mm, and the top end of the sludge lifting pipe (17) is 100-150 mm higher than the bottom surface of the sludge groove (14).
Preferably, the total span of the water purifying tank (13) and the sludge tank (14) is less than or equal to 40% of the radian of the outer ring column barrel area (5).
Preferably, the top of the integrated tank body (1) is provided with a slag taking cover (21) and an access cover (22); the slag taking cover (21) is provided with air holes.
The invention is further illustrated below:
the invention relates to micro-power integrated equipment for rural domestic sewage treatment, which mainly comprises an integrated tank body, a basket grid, a micro-nano aeration system, a sludge gas stripping system and the like, wherein a PE finished product tank is taken as a main part, and carbon steel or stainless steel can also be adopted. The device is a cylindrical tank, a concentric circular clapboard is arranged in the cylindrical tank, 1 circle and 2 annular partition areas are formed on the structure, and 1 purified water and sludge tank arranged in an outer ring is additionally arranged. Can divide into 4 regions with this equipment in the function from 1 district, be interior cylinder, mainly set up the hand-basket grid for the great suspended solid in the interception domestic sewage plays the acidization of hydrolysising simultaneously, improves waste water biodegradability. Zone 2 is a middle ring column barrel, is mainly provided with a micro-nano aeration system, and is externally connected with a small air pump to realize an aerobic biochemical process. The micro-nano aeration system mainly comprises a micro-nano aeration air inlet pipe and a micro-nano aeration ring. The 3 area is an outer ring column cylinder, a partition plate is arranged in the outer ring column cylinder, so that water flow is subjected to solid-liquid separation in a rotational flow mode in one direction, and a water purification tank and a sludge tank are arranged at the tail end of the water flow to form a 4 th area of the system. The inside of the zone 4 is divided into a clear water tank and a sludge tank, and the clear water tank mainly collects the supernatant liquid after solid-liquid separation in the zone 3 and discharges the supernatant liquid as treated effluent out of the tank body. Then be provided with mud riser and air stripping pipe in the sludge tank, through being connected of air stripping pipe and external small-size air pump, realize the steady promotion of mud in the mud riser, a small amount of activated sludge who gets into the sludge tank then flows in 2 districts through the mud backward flow hole, realizes inside backward flow.
Taking daily treatment of 5-10 m rural domestic sewage for the example:
in detail, the appearance of the integrated equipment is a cylindrical tank, and the ratio of the diameter to the height is controlled to be between 0.6 and 1. In order to realize the stable standard discharge of the sewage, the retention time of the sewage in the tank body can be controlled between 0.5 and 2 days. The material of the tank body is mainly PE, and carbon steel or stainless steel can also be adopted.
4 areas are divided in the tank body, wherein the area 1 is an inner circle area, the area 2 is a middle ring area, the area 3 is an outer ring area, and the area 4 is arranged in the area 3. The radius of the cylinder in the area 1 is preferably 20% -30% of the radius of the total tank body, and a basket grid with the inner diameter of phi 400-600 mm is arranged. Sewage flows in through the equipment water inlet, and through 1 entering hand-basket grid of water hole of crossing of the centre that sets up on the hand-basket grid, hand-basket grid hole control is between 2 ~ 5mm of phi, through the effect of holding back of hand-basket grid, and the suspended solid in the sewage is intercepted, is gathered in the hand-basket grid, reaches a certain amount of back lifting grid and properly clears up. Sewage enters the anaerobic zone at the bottom of the zone 1 through the grid holes at the bottom and the side wall of the basket grid, and the biochemical effect is improved through the hydrolysis of active biological anaerobic bacteria. The sewage after the completion of the hydrolysis enters the 2 areas from the 1 area through the middle water passing hole 2 arranged at the bottom of the equipment, and aerobic decomposition of the microorganisms on the sewage is realized in the 2 areas through the micro-nano aeration effect, so that a stable and standard-reaching foundation for sewage treatment is formed, and the span of the 2-area annular interval preferably accounts for 40-50% of the radius of the total tank body. Micro-nano aeration system divide into micro-nano aeration intake pipe and micro-nano aeration ring two parts in 2 districts, and micro-nano aeration intake pipe passes through the female connection head and is connected with plus air pump, and another then gets into in the equipment and set up the micro-nano aeration ring connection in 2 districts bottoms, provides external pressurized air for it. The micro-nano aeration ring is fixed at the bottom of the zone 2 through a buckle, the surface of the aeration ring is a microporous membrane, and an ABS framework is arranged inside the aeration ring. When the system is operated, active biological strains are put into the area 2, and sewage enters the area 3 through the middle water through hole 3 after being biochemically treated by aerobic microorganisms in the area 2. The 3 areas of the equipment are annular areas separated by the partition plate, and wastewater from the middle water passing hole 3 can only circularly flow in the 3 areas along one direction to form a rotational flow settling area. The tail end of the water flow is provided with a water purifying tank and a sludge tank to form a 4 th area of the equipment, and the water purifying tank collects supernatant in the 3 th area through a clear water through hole and discharges the supernatant out of the tank of the equipment. The sludge tank is close to the partition plate and is internally provided with a sludge air-lifting device. The sludge gas stripping device consists of a sludge lifting pipe and a gas stripping pipe, wherein the distance between the sludge lifting pipe and the bottom of the tank body is controlled to be 50-100 mm, the upper end of the sludge lifting pipe is 100-150 mm higher than the bottom of the sludge tank, and the upper end of the sludge lifting pipe is at least 50mm higher than the water level of the water inlet end. When the system operates, the air pump is connected with the air interface of the air stripping device, so that the micro-nano aeration of the system is realized, the sludge is lifted and reflows, and through the metabolism and aerobic digestion of microorganisms, organic matters in the sewage are finally dissipated in an energy form, the sludge yield is reduced, and the system treatment efficiency is improved. The span of the 3-zone annular interval is 25-35% of the total tank radius, and the span of the 4-zone tank body is not more than 40% of the 3-zone radian.
Compared with the prior art, the invention has the beneficial effects that:
(1) the tank body is designed in a partition mode according to the concentric round cabin design concept, so that the fluid resistance is greatly reduced, the integral head loss of equipment is reduced, and the installation adaptability of the system is improved;
(2) the efficiency of the solid-liquid separation cabin with the annular design is improved by 15 to 30 percent compared with that of a common advection precipitation cabin;
(3) by adopting the micro-nano aeration design, the dissolved oxygen efficiency can be effectively improved, and the aeration quantity is reduced, so that the energy consumption of the system is reduced;
(4) the movable basket grating arranged in the inner circle can effectively solve the problem of tank body blockage and reduce the operation difficulty;
(5) sludge is circulated and refluxed in an air stripping mode, so that the sludge refluxing system and the micro-nano aeration system share one air pump, the setting space of a sludge lifting pump is saved, and the energy consumption of the system is reduced.
Drawings
FIG. 1 is a top view of the integrated apparatus of the present invention;
FIG. 2 is a schematic top cross-sectional view of an integrated apparatus of the present invention;
FIG. 3 is a cross-sectional view of 1-1 of FIG. 1;
FIG. 4 is a cross-sectional view of 2-2 of FIG. 1;
FIG. 5 is a cross-sectional view of section 3-3 of FIG. 1;
fig. 6 is a cross-sectional view of 4-4 of fig. 1.
In the figure: 1. an integrated tank body; 2. a concentric circular partition plate; 3. an inner cylindrical section; 4. a middle ring column barrel area; 5. an outer ring column section; 6. a basket grid; 7. a water inlet pipe; 8. a water through hole; 9. b, water passing holes; 10. a micro-nano aeration air inlet pipe; 11. a micro-nano aeration ring; 12. c, water passing holes; 13. a water purifying tank; 14. a sludge tank; 15. clear water passing holes; 16. a water outlet pipeline; 17. a sludge lifting pipe; 18. a gas stripping tube; 19. a sludge return hole; 20. a partition plate; 21. taking a slag cover; 22. and an access cover.
Detailed Description
Referring to fig. 1 to 6, the micro-power integrated equipment for rural domestic sewage treatment comprises an integrated tank body 1; the inner cavity of the integrated tank body 1 is divided into an inner cylindrical area 3, a middle ring cylindrical area 4 and an outer ring cylindrical area 5 by two concentric circular clapboards 2; a basket grid 6 is arranged at the upper part of the inner cylindrical area 3, and a water inlet pipeline 7 of the integrated equipment is communicated with the basket grid 6 through a water through hole 8A; the inner cylindrical area 3 is communicated with the middle cylindrical area 4 through a water hole 9 at the bottom B; the middle ring column barrel zone 4 is provided with a micro-nano aeration system, and the micro-nano aeration system comprises a micro-nano aeration air inlet pipe 10 externally connected with an air pump and a micro-nano aeration ring 11 which is communicated with the micro-nano aeration air inlet pipe 10 and is arranged on the inner bottom surface of the middle ring column barrel zone 4; the middle ring column tube area 4 is communicated with the outer ring column tube area 5 through a water through hole 12 in the middle part C; the water inlet end and the water outlet end of the outer ring column tube area 5 are isolated by a clapboard 20; the water outlet end of the outer ring column barrel area 5 is provided with a water purifying tank 13 and a sludge tank 14, the water purifying tank 13 is communicated with the outer ring column barrel area 5 through a clean water through hole 15, and the water outlet of the water purifying tank 13 is communicated with a water outlet pipeline 16 of the integrated equipment; the sludge tank 14 is communicated with the outer ring column barrel zone 5 through a sludge lifting pipe 17, and the sludge lifting pipe 17 is externally connected with an air pump through an air lifting pipe 18; the sludge tank 14 is communicated with the middle ring column barrel zone 4 through a sludge return hole 19.
Wherein the radius of the cylindrical barrel area 3 is 20-30% of the radius of the integrated tank body 1. The inner diameter of the basket grid 6 is 400-600 mm; 6 bars of basket grid hole aperture is 2 ~ 5 mm. The ring width of the middle ring column tube region 4 is 40-50% of the radius of the integrated tank body 1. The micro-nano aeration air inlet pipe 10 is connected with an air pump through an internal thread joint; the micro-nano aeration ring 11 is fixed on the inner bottom surface of the middle ring column barrel zone 4 through a bayonet. The surface of the micro-nano aeration ring 11 is a microporous film, and an ABS framework is arranged inside the micro-nano aeration ring 11. The ring width of the outer ring column tube area 5 is 25-35% of the radius of the integrated tank body 1. The distance between the sludge lifting pipe 17 and the bottom surface of the outer ring column barrel area 5 is 50-100 mm, and the top end of the sludge lifting pipe 17 is higher than the bottom surface of the sludge groove 14 by 100-150 mm. The total span of the water purifying tank 13 and the sludge tank 14 is less than or equal to 40 percent of the 5 radian of the outer ring column cylinder area. The top of the integrated tank body 1 is provided with a slag taking cover 21 and an access cover 22.
According to the application example, the method is suitable for treating the rural domestic sewage with the scale of 0-15 m3The range of the interval of/d is that the processing capacity can be expanded by adopting a mode of parallel connection of the tank bodies for processing a slightly large scale. The COD of the inlet water concentration is controlled within 400mg/L, and necessary front-end pretreatment such as a septic tank and the like must be added to the black water part of rural domestic sewage, so that the treatment effect is more stable.
Claims (10)
1. The micro-power integrated equipment for rural domestic sewage treatment is characterized by comprising an integrated tank body (1); the inner cavity of the integrated tank body (1) is divided into an inner cylindrical area (3), a middle ring cylindrical area (4) and an outer ring cylindrical area (5) by two concentric circular clapboards (2); a basket grid (6) is arranged at the upper part of the inner cylindrical area (3), and a water inlet pipeline (7) of the integrated equipment is communicated with the basket grid (6) through a water hole (8) A; the inner cylindrical area (3) is communicated with the middle cylindrical area (4) through a water hole (9) at the bottom B; the middle ring column barrel area (4) is provided with a micro-nano aeration system, and the micro-nano aeration system comprises a micro-nano aeration air inlet pipe (10) externally connected with an air pump and a micro-nano aeration ring (11) which is communicated with the micro-nano aeration air inlet pipe (10) and is arranged on the inner bottom surface of the middle ring column barrel area (4); the middle ring column tube area (4) is communicated with the outer ring column tube area (5) through a middle C water through hole (12); the water inlet end and the water outlet end of the outer ring column tube area (5) are isolated by a partition plate (20); the water outlet end of the outer ring column barrel area (5) is provided with a water purifying tank (13) and a sludge tank (14), the water purifying tank (13) is communicated with the outer ring column barrel area (5) through a clean water through hole (15), and the water outlet of the water purifying tank (13) is communicated with a water outlet pipeline (16) of the integrated equipment; the sludge tank (14) is communicated with the outer ring column barrel zone (5) through a sludge lifting pipe (17), and the sludge lifting pipe (17) is externally connected with an air pump through an air lifting pipe (18); the sludge tank (14) is communicated with the middle ring column barrel area (4) through a sludge return hole (19).
2. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the radius of the cylindrical barrel area (3) is 20-30% of the radius of the integrated tank body (1).
3. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the inner diameter of the basket grid (6) is 400-600 mm; the aperture of the grid hole of the basket grid (6) is 2-5 mm.
4. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the ring width of the middle ring cylindrical area (4) is 40-50% of the radius of the integrated tank body (1).
5. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the micro-nano aeration air inlet pipe (10) is connected with an air pump through an internal thread joint; the micro-nano aeration ring (11) is fixed on the inner bottom surface of the middle ring column barrel area (4) through a bayonet.
6. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the micro-nano aeration ring (11) surface is a microporous membrane, and the micro-nano aeration ring (11) interior is an ABS skeleton.
7. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the ring width of the outer ring column tube area (5) is 25-35% of the radius of the integrated tank body (1).
8. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the distance between the sludge lifting pipe (17) and the bottom surface of the outer ring cylindrical area (5) is 50-100 mm, and the top end of the sludge lifting pipe (17) is 100-150 mm higher than the bottom surface of the sludge tank (14).
9. The micro-power integrated equipment for rural domestic sewage treatment according to claim 1, wherein the total span of the water purification tank (13) and the sludge tank (14) is less than or equal to 40% of the radian of the outer ring column barrel area (5).
10. The micro-power integrated equipment for rural domestic sewage treatment according to any one of claims 1 to 9, wherein a slag taking cover (21) and an access cover (22) are arranged at the top of the integrated tank body (1).
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| CN202010088622.XA CN111233137A (en) | 2020-02-12 | 2020-02-12 | Micro-power integrated equipment for rural domestic sewage treatment |
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| CN202010088622.XA CN111233137A (en) | 2020-02-12 | 2020-02-12 | Micro-power integrated equipment for rural domestic sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919633A (en) * | 2021-02-05 | 2021-06-08 | 辽宁省环保集团有限责任公司 | Buried small and miniature sewage treatment device |
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