CN101913735A - Self-oxygenation and self-stirring domestic sewage purification device - Google Patents

Abstract

The invention discloses a self-oxygenating and self-stirring domestic sewage purification device. The purification device includes a grid water collection area, a first elastic packing, a fine grid, a water inlet pipe, an air chamber in the first anaerobic zone, a facultative oxygen zone, a first L-shaped air pressure balance pipe, an air chamber in the second anaerobic zone, The second L-shaped air pressure balance pipe, the third square hole, the third anaerobic zone air chamber, the air inlet, the facultative oxygen zone air chamber, the third L-shaped air pressure balance pipe, the air extraction pipe, the fourth square hole, the drain pipe, Inclined plate, settling area, third two-way flow pipe, third anaerobic area, third elastic packing, second one-way flow pipe, second elastic packing, second anaerobic area, second square hole, first one-way Flow tube, first anaerobic zone, first square hole. The invention has a compact structure and occupies less land; the facultative oxygen zone in the purification tank can realize automatic shallow oxygenation, which is helpful for biological denitrification; the anaerobic zone of the purification tank can realize automatic stirring, which is helpful to prevent muddy water stratification and improve Purifying effect.

Description

Self-oxygenation and self-stirring domestic sewage purification device

technical field

The invention relates to a self-oxygenating and self-stirring domestic sewage purification device.

Background technique

At present, non-point source pollution has become a major water environment problem in my country, and rural domestic sewage is one of the main sources of non-point source pollution. The layout of most rural residential buildings in my country is messy, lack of unified planning, and there is no complete sewage collection pipe network and sewage treatment facilities; most of the three-format septic tanks that have been built for households are of poor quality, easy to leak, and the sewage purification effect is not good. Rural domestic sewage purification tanks based on anaerobic treatment have been widely used in various parts of my country. This technology has high COD removal efficiency, stable operation and convenient management. However, there are still problems of poor denitrification effect and easy sludge deposition in long-term operation. On the basis of the existing sewage purification tank, the present invention is adopted to build the facultative tank and the anaerobic tank together, which can not only save land occupation, but also enhance the denitrification effect and avoid sludge deposition.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the existing distributed domestic sewage purification tanks and provide a self-oxygenating and self-stirring domestic sewage purification device.

Self-oxygenation and self-stirring domestic sewage purification device includes grid catchment area, first elastic packing, fine grid, water inlet pipe, first anaerobic zone air chamber, facultative oxygen zone, first L-shaped air pressure balance pipe, second Anaerobic area air chamber, second L-shaped air pressure balance pipe, third rectangular hole, third anaerobic area air chamber, air inlet, facultative oxygen area air chamber, third L-shaped air pressure balance pipe, air extraction pipe, fourth Square hole, drainage pipe, inclined plate, sedimentation area, third two-way flow pipe, third anaerobic area, third elastic packing, second one-way flow pipe, second elastic packing, second anaerobic area, second square hole, first one-way flow pipe, first anaerobic zone, first square hole; grid catchment area with first anaerobic zone, second anaerobic zone, third anaerobic zone, facultative zone and sedimentation There are fine grids in the grid catchment area, water inlet pipes are arranged on the upper side wall of the grill catchment area, the lower part of the grid water collection area is connected with the first anaerobic zone through the first square hole, and the second An anaerobic zone is provided with a first elastic packing, a first one-way flow pipe, a first L-shaped air pressure balance tube and an air chamber in the first anaerobic zone, and the lower part of the first anaerobic zone is connected to the second anaerobic zone through the second square hole. The oxygen zone is connected, and the second anaerobic zone is provided with a second elastic packing, a second one-way flow pipe, a second L-shaped air pressure balance tube and an air chamber in the second anaerobic zone, and the upper part of the second anaerobic zone passes through a third square The hole is connected to the third anaerobic zone, and the third anaerobic zone is provided with a third elastic packing, a third two-way flow pipe, a third L-shaped air pressure balance tube and an air chamber of the third anaerobic zone, and the third anaerobic zone passes through The third two-way flow pipe is connected with the aerobic zone, and the aerobic zone is directly above the first, second, and third anaerobic zones. The upper part of the zone is provided with an air inlet and an air extraction pipe, and the upper part of the aerobic zone is connected with the fourth square hole. The sedimentation area is connected, with a sloping plate in the sedimentation area, and a drainage pipe on the upper side wall of the sedimentation area; the aerobic area and the first anaerobic area are connected through the first one-way flow pipe and the first L-shaped air pressure balance pipe, and the The oxygen zone and the second anaerobic zone are connected through the second one-way flow pipe and the second L-shaped air pressure balance pipe, and the facultative oxygen zone is connected with the third anaerobic zone through the third two-way flow pipe and the third L-shaped air pressure balance pipe. Penetration; the top of the purification device is covered with soil, greening can be considered, and the air inlet and exhaust pipe are connected from the top of the device.

Self-oxygenation and self-stirring domestic sewage purification method is: domestic sewage enters the grid catchment area through the water inlet pipe, and the hydraulic retention time is 12h. After removing large particles of dirt in the sewage, it flows into the first anaerobic area through the first square hole. With a hydraulic retention time of 16h, it flows into the second anaerobic zone through the second square hole, and with a hydraulic retention time of 16h, it flows into the third anaerobic zone through the third rectangular hole with a hydraulic retention time of 16h, and flows into the facultative zone through the third two-way flow pipe The hydraulic retention time is 24h, and it flows into the sedimentation area through the fourth square hole. The hydraulic retention time is 12h, and finally it is discharged through the drainage pipe up to the standard; Through the first L-type air pressure balance pipe, the second L-type air pressure balance pipe and the third L-type air pressure balance pipe to realize the air pressure balance with the gas chamber of the aerobic zone; the first anaerobic zone, the second anaerobic zone and the third anaerobic zone The oxygen zone realizes the self-stirring function through the first one-way flow pipe, the second one-way flow pipe and the third two-way flow pipe respectively, which can effectively avoid the deposition of granular sludge in the anaerobic zone; Realize the self-oxygenation function, the self-oxygenation capacity can reach 150mgO ₂ /(m ² ·d), the denitrification effect can reach 0.1-0.2kgN/(m ³ ·d); the top of the purification device is covered with soil 0.5m, and the air inlet cover is high The overburden is about 0.06m, the air pipe is about 0.1m higher than the overburden, and the height difference between the inlet pipe and the outlet pipe is about 0.3-0.5m, which can ensure that the sewage flows from the inlet pipe to the outlet pipe.

The beneficial effects of the present invention are as follows: 1) the purification pool adopts an underground integrated structure, and the anaerobic zone and the anaerobic zone are built together up and down, and the purification pool has a compact structure and occupies less area; 2) the purification pool adopts anaerobic + facultative oxygen 3) The purification pool adopts the principle of shallow oxygenation to strengthen the self-oxygenation function of the anaerobic zone and improve the denitrification effect; 4) The purification pool is equipped with L-shaped air pressure balance pipes and single- and two-way flow pipes. It can realize self-stirring and denitrification denitrification in anaerobic zone.

Description of drawings

Accompanying drawing is a kind of self-oxygenation self-stirring domestic sewage purifying device schematic diagram of the present invention;

In the figure: grid catchment area 1, first elastic filler 2, fine grid 3, water inlet pipe 4, first anaerobic zone air chamber 5, facultative oxygen zone 6, first L-shaped air pressure balance pipe 7, second Anaerobic area air chamber 8, second L-shaped air pressure balance pipe 9, third rectangular hole 10, third anaerobic area air chamber 11, air inlet 12, facultative oxygen area air chamber 13, third L-shaped air pressure balance pipe 14 , air extraction pipe 15, fourth square hole 16, drain pipe 17, inclined plate 18, sedimentation area 19, third two-way flow pipe 20, third anaerobic area 21, third elastic packing 22, second one-way flow pipe 23. The second elastic filler 24, the second anaerobic zone 25, the second square hole 26, the first one-way flow pipe 27, the first anaerobic zone 28, and the first square hole 29.

Detailed ways

As shown in the attached figure, the self-oxygenation and self-stirring domestic sewage purification device includes a grid catchment area 1, a first elastic filler 2, a fine grid 3, a water inlet pipe 4, an anaerobic zone air chamber 5, and an aerobic zone 6. The first L-shaped air pressure balance tube 7, the second anaerobic zone air chamber 8, the second L-shaped air pressure balance tube 9, the third square hole 10, the third anaerobic zone air chamber 11, the air inlet 12, and the oxygen Zone air chamber 13, third L-shaped air pressure balance pipe 14, air extraction pipe 15, fourth square hole 16, drain pipe 17, inclined plate 18, sedimentation area 19, third two-way flow pipe 20, third anaerobic area 21 , the third elastic packing 22, the second one-way flow tube 23, the second elastic packing 24, the second anaerobic zone 25, the second square hole 26, the first one-way flow tube 27, the first anaerobic zone 28, the second A square hole 29; the grid catchment area 1 is connected successively with the first anaerobic area 28, the second anaerobic area 25, the third anaerobic area 21, the aerobic area 6 and the precipitation area 19; the grid water collection area 1 is provided with a fine grid 3, and the upper side wall of the grid water collection area 1 is provided with a water inlet pipe 4, and the lower part of the grid water collection area 1 is connected with the first anaerobic area 28 through the first square hole 29, and the first anaerobic area The first elastic packing 2, the first one-way flow pipe 27, the first L-shaped air pressure balance pipe 7 and the first anaerobic zone air chamber 5 are arranged in the oxygen zone 28, and the lower part of the first anaerobic zone 28 passes through the second square hole 26 is connected with the second anaerobic zone 25, and the second elastic packing 24, the second one-way flow pipe 23, the second L-shaped air pressure balance tube 9 and the second anaerobic zone air chamber 8 are arranged in the second anaerobic zone 25 , the upper part of the second anaerobic zone 25 is connected with the third anaerobic zone 21 through the third rectangular hole 10, the third anaerobic zone 21 is provided with a third elastic filler 22, a third two-way flow pipe 20, a third L-shaped air pressure The balance pipe 14 and the air chamber 11 of the third anaerobic zone, the third anaerobic zone 21 is connected to the aerobic zone 6 through the third two-way flow pipe 20, and the aerobic zone 6 is directly above the first, second and third anaerobic zones , the upper part of this area is provided with air inlet 12, air extraction pipe 15, and the upper part of the aerobic area 6 is connected with the sedimentation area 19 through the fourth square hole 16, and the inclined plate 18 is arranged in the sedimentation area 19, and the side wall of the upper part of the sedimentation area 19 is provided with Drain pipe 17; the aerobic zone 6 and the first anaerobic zone 28 are connected through the first one-way flow pipe 27 and the first L-shaped air pressure balance tube 7, and the aerobic zone 6 and the second anaerobic zone 25 are passed through the second single It runs through the flow pipe 23 and the second L-shaped air pressure balance pipe 9, and the anaerobic zone 6 and the third anaerobic zone 21 pass through the third two-way flow pipe 20 and the third L-shaped air pressure balance pipe 14; the purification device is covered with soil , greening can be considered, and the air inlet 12 and the exhaust pipe 15 are connected from the top of the device.

The self-oxygenation and self-stirring domestic sewage purification method is: domestic sewage enters the grid catchment area 1 through the water inlet pipe 4, and the hydraulic retention time is 12 hours. After removing large particles of dirt in the sewage, it flows into the first drain through the first square hole 29 Oxygen zone 28, hydraulic retention time 16h, flows into the second anaerobic zone 25 through the second square hole 26, hydraulic retention time 16h, flows into the third anaerobic zone 21 through the third rectangular hole 10, hydraulic retention time 16h, passes through the third The two-way flow pipe 20 flows into the aerobic zone 6 with a hydraulic retention time of 24 hours, flows into the sedimentation zone 19 through the fourth square hole, and has a hydraulic retention time of 12 hours, and finally discharges up to the standard through the drain pipe 17; the first anaerobic zone air chamber 5, the second anaerobic zone The gas chamber 8 in the oxygen zone and the gas chamber 11 in the third anaerobic zone are respectively realized by the first L-shaped air pressure balance pipe 7, the second L-shaped air pressure balance pipe 9 and the third L-shaped air pressure balance pipe 14 and the gas chamber 13 in the oxygen zone. air pressure balance; the first anaerobic zone 28, the second anaerobic zone 25 and the third anaerobic zone 21 are realized by the first one-way flow pipe 27, the second one-way flow pipe 23 and the third two-way flow pipe 20 respectively The stirring function can effectively avoid the deposition of granular sludge in the anaerobic zone; the anaerobic zone 6 realizes the self-oxygenation function through the air inlet 12 and the exhaust pipe 15, and the self-oxygenation capacity can reach 150mg O ₂ /(m ² ·d) , the denitrification effect can reach 0.1-0.2kgN/(m ³ ·d); the top of the purification device is covered with soil 0.5m, the cover of the air inlet 12 is about 0.06m higher than the covering soil, the air extraction pipe 15 is about 0.1m higher than the covering soil, and the water inlet pipe 4 The height difference between the water outlet pipe 17 and the water outlet pipe 17 is about 0.3-0.5m, which can ensure that the sewage flows from the water inlet pipe 4 to the water outlet pipe 17.

The operation mode of the present invention is: domestic sewage enters the grid sump 1 through the water inlet pipe 4, flows into the first anaerobic zone 28 through the first square hole 29, flows into the second anaerobic zone 25 through the second square hole 26, and flows into the second anaerobic zone 25 through the second square hole 26. The three square holes 10 flow into the third anaerobic zone 21, flow into the aerobic zone 6 through the third two-way flow pipe 20, flow into the sedimentation zone 19 through the fourth square hole 16, and finally discharge through the drain pipe 17 up to the standard; the air is discharged from the air inlet 12 It flows into the gas chamber 13 of the aerobic zone, and is discharged from the gas chamber 13 of the aerobic zone by the exhaust pipe 15. By contacting the sewage in the aerobic zone 6, the self-oxygenation function of the aerobic zone 6 is realized; the sewage in the aerobic zone 6 passes through The first L-type air pressure balance pipe 7, the second L-type air pressure balance pipe 9 and the third L-type air pressure balance pipe 14 balance the air pressure, through the first one-way flow pipe 27, the second one-way flow pipe 23 and the first one-way flow pipe. The three-way flow pipes 20 respectively flow into the first anaerobic zone 28, the second anaerobic zone 25 and the third anaerobic zone 21, which have a strong impact on the deposited sludge in the anaerobic zone, thereby realizing the self-stirring function.

Claims (2)

1. self-oxygenate self-stirring domestic sewage purification device, it is characterized in that comprising grid catchment area (1), first elastic filler (2), fine fack (3), water inlet pipe (4), the first anaerobic zone air chamber (5), aerobic area (6), a L type barometric pipe (7), the second anaerobic zone air chamber (8), the 2nd L type barometric pipe (9), third square hole (10), the 3rd anaerobic zone air chamber (11), blast inlet (12), aerobic area air chamber (13), the 3rd L type barometric pipe (14), pull out airduct (15), fourth square hole (16), water shoot (17), swash plate (18), settling region (19), the 3rd bidirectional flow siphunculus (20), the 3rd anaerobic zone (21), the 3rd elastic filler (22), second one-way flow control (23), second elastic filler (24), second anaerobic zone (25), second square opening (26), first one-way flow control (27), first anaerobic zone (28), first square opening (29); Grid catchment area (1) links to each other with settling region (19) successively with first anaerobic zone (28), second anaerobic zone (25), the 3rd anaerobic zone (21), aerobic area (6); Be provided with fine fack (3) in the grid catchment area (1), grid catchment area (1) upper portion side wall is provided with water inlet pipe (4), bottom, grid catchment area (1) links to each other with first anaerobic zone (28) by first square opening (29), be provided with first elastic filler (2) in first anaerobic zone (28), first one-way flow control (27), the one L type barometric pipe (7) and the first anaerobic zone air chamber (5), first anaerobic zone (28) bottom links to each other with second anaerobic zone (25) by second square opening (26), be provided with second elastic filler (24) in second anaerobic zone (25), second one-way flow control (23), the 2nd L type barometric pipe (9) and the second anaerobic zone air chamber (8), second anaerobic zone (25) top links to each other with the 3rd anaerobic zone (21) by third square hole (10), be provided with the 3rd elastic filler (22) in the 3rd anaerobic zone (21), the 3rd bidirectional flow siphunculus (20), the 3rd L type barometric pipe (14) and the 3rd anaerobic zone air chamber (11), the 3rd anaerobic zone (21) links to each other with aerobic area (6) by the 3rd bidirectional flow siphunculus (20), aerobic area (6) is first, two, directly over three anaerobic zones, this top, district is provided with blast inlet (12), pull out airduct (15), aerobic area (6) top links to each other with settling region (19) by fourth square hole (16), be provided with swash plate (18) in the settling region (19), settling region (19) upper portion side wall is provided with water shoot (17); Aerobic area (6) runs through by first one-way flow control (27), a L type barometric pipe (7) mutually with first anaerobic zone (28), aerobic area (6) runs through by second one-way flow control (23), the 2nd L type barometric pipe (9) mutually with second anaerobic zone (25), and aerobic area (6) runs through by the 3rd bidirectional flow siphunculus (20), the 3rd L type barometric pipe (14) mutually with the 3rd anaerobic zone (21); Refining plant top earthing can be considered greening, blast inlet (12) and pull out airduct (15) and pick out from installing the top.

2. self-oxygenate self-stirring domestic sewage purifying method that use is installed according to claim 1, it is characterized in that sanitary sewage enters grid catchment area 1 through water inlet pipe (4), hydraulic detention time 12h, remove in the sewage behind the macrobead dirt, flow into first anaerobic zone (28) through first square opening (29), hydraulic detention time 16h, flow into second anaerobic zone (25) through second square opening (26), hydraulic detention time 16h, flow into the 3rd anaerobic zone (21) through third square hole (10), hydraulic detention time 16h, flow into aerobic area (6) through the 3rd bidirectional flow siphunculus (20), hydraulic detention time 24h flows into settling region (19) through fourth square hole, hydraulic detention time 12h is after water shoot (17) qualified discharge; The first anaerobic zone air chamber (5), the second anaerobic zone air chamber (8) and the 3rd anaerobic zone air chamber (11) are respectively by a L type barometric pipe (7), the 2nd L type barometric pipe (9) and the realization of the 3rd L type barometric pipe (14) air pressure balance with aerobic area air chamber (13); First anaerobic zone (28), second anaerobic zone (25) and the 3rd anaerobic zone (21) are realized can effectively avoiding the sludgd deposition of anaerobic zone endoparticle from agitating function by first one-way flow control (27), second one-way flow control (23) and the 3rd bidirectional flow siphunculus (20) respectively; Aerobic area (6) is by blast inlet (12) and pull out airduct (15) realization from the oxygenation function, can reach 150mgO from oxygenation capacity ₂/ (m ²D), denitrification effect can reach 0.1-0.2kgN/ (m ³D); Refining plant top earthing 0.5m, blast inlet (12) lid is higher than the about 0.06m of earthing, pulls out airduct (15) and is higher than the about 0.1m of earthing, and water inlet pipe (4) and the about 0.3-0.5m of both difference of altitude of rising pipe (17) can guarantee that sewage flow to rising pipe (17) certainly by water inlet pipe (4).