CN213416614U

CN213416614U - Integrated biological denitrification and sludge reduction device

Info

Publication number: CN213416614U
Application number: CN202022172009.4U
Authority: CN
Inventors: 吴成强; 陈海飞; 蒋浓
Original assignee: Hangzhou Renhong Environmental Technology Co Ltd
Current assignee: Hangzhou Renhong Environmental Technology Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-06-11
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses an integrated biological denitrification and sludge reduction device, which comprises a treatment box, wherein the upper left side of the treatment box is connected with a water inlet pipe, the lower left side of the treatment box is connected with a sludge outlet, the upper part of the treatment box is provided with a first baffle plate, a stirring tank is arranged above the first baffle plate, the stirring tank improves the contact time and the area of water and air, a filter screen is arranged at the left side of the stirring tank, the first baffle plate is obliquely arranged towards the lower right side, a sludge pump is arranged at the lower right side of the stirring tank, the sludge pump is connected with a sludge guide pipe, the sludge guide pipe penetrates through the left side of the first baffle plate and is connected with a dispersion pipe at the lower side of the first baffle plate, the treatment box is provided with an air guide pipe below the left side of the first baffle plate, the air guide pipe is rotationally connected with a plurality of stirring devices, and then stir the stirring pond to utilize the bubble to improve stirring effect.

Description

Integrated biological denitrification and sludge reduction device

Technical Field

The utility model relates to a sewage treatment field specifically is integration biological denitrogenation and mud decrement device.

Background

Research shows that the over-standard discharge of nitrogen and phosphorus elements is an important cause of water body pollution, and the reduction of the content of nutrient elements in the discharged water and the strict control of the discharge are one of measures for preventing water body eutrophication. At present, the common methods for denitrification of wastewater are physicochemical method and biological method. Wherein, the physicochemical methods, such as stripping, chemical precipitation, breakpoint chlorination and the like, have simple flow and high treatment efficiency, but have high operation cost. The biological method is mainly used for removing nitrogen elements in water through the action of nitrifying bacteria and denitrifying bacteria, has better economy and is a denitrification technology with great development potential.

The sludge reduction technology is used for reducing the quantity of biosolids discharged outside the whole sewage treatment system to the minimum by means of physical, chemical, biological and the like; organic matters contained in the sludge are released to be used as a carbon source for biological denitrification, and the biological denitrification is promoted while the sludge is reduced

The important way of reducing the residual sludge can be realized mainly by the in-situ control technology (a biomembrane method, a membrane biological reaction device and a porous carrier method) of the sludge.

The existing structure carries out step-by-step treatment through different treatment tanks, the middle part is connected through a pipeline, the structure is complex, and the retention time of sludge is short. Therefore, the utility model provides an integrated biological denitrification and sludge reduction device to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integration biological denitrogenation and mud decrement device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the integrated biological denitrification and sludge reduction device comprises a treatment box, wherein the upper left side of the treatment box is connected with a water inlet pipe, the lower left side of the treatment box is connected with a sludge outlet, the upper part of the treatment box is provided with a first partition plate, a stirring tank is arranged above the first partition plate, the stirring tank improves the contact time and area of water and air, the left side of the stirring tank is provided with a filter screen, the first partition plate is obliquely arranged towards the lower right side, the lower right side of the stirring tank is provided with a sludge pump, the sludge pump is connected with a sludge guide pipe, the sludge guide pipe penetrates through the left side of the first partition plate and is connected with a dispersion pipe on the lower side of the first partition plate, the treatment box is provided;

the downside of baffle one is equipped with baffle two, the right-hand member of baffle two inclines towards the top, and the right-hand member is unsettled, the below of baffle two is equipped with three baffles three, the baffle three of the top sets up towards the top left side slope, the left end is unsettled, the top of baffle three and baffle two of the top all is equipped with a plurality of stirring wheels, the pivot end connection of stirring wheel has the belt pulley, the belt pulley is connected with power through the belt, the baffle three of downside sets up towards the below right side slope, the right-hand member is unsettled, the top of intermediate bottom three is equipped with the aeration pipe, the right-hand member of aeration pipe connects

As a further proposal of the utility model, the air duct is transversely arranged above the first clapboard, and the lower port of the air duct is higher than the mud guide pipe.

As the utility model discloses scheme further again, agitating unit includes water wheels, axis of rotation and stirring leaf, and water wheels rotates to be connected in the air duct, and the stirring leaf is located the stirring pond, and the internal diameter of air duct sets up with water wheels is tangent.

As the utility model discloses scheme further again, the downside of air duct evenly is equipped with a plurality of through-holes, prevents that mud from piling up intraductally, and the right-hand member upside of air duct is equipped with the aeration net, utilizes the bubble to accelerate the mixture in the stirring pond.

As the utility model discloses scheme further again, the upside of baffle two and baffle three all is equipped with the strip recess that is parallel to each other, and the upside is equipped with the through-hole of slope, and the side is gone up to the through-hole perpendicular to, when switching on mud, reduces the disturbance between the upper and lower floor.

As the utility model discloses further scheme again, the mud outlet is the rectangle opening, and open-ended length equals the side length of handling the case for the downside evenly goes out mud.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a planning the route of marcing of mud, the retention time of extension mud for the reaction is more abundant.

2. The utility model discloses utilize the gaseous agitating unit that drives of aeration to rotate, and then stir the stirring pond to utilize the bubble to improve stirring effect.

Drawings

FIG. 1 is a schematic front view of an integrated biological denitrification and sludge reduction apparatus.

FIG. 2 is a schematic top view of the stirring apparatus of the integrated biological denitrification and sludge reduction apparatus.

FIG. 3 is a schematic diagram of the right view of the integrated biological denitrification and sludge reduction apparatus.

FIG. 4 is a schematic perspective view of a second partition plate in the integrated biological denitrification and sludge reduction apparatus.

In the figure: 1. a treatment tank; 2. a water inlet pipe; 3. a filter screen; 4. a stirring tank; 5. a first clapboard; 6. a sludge pump; 7. a mud guide pipe; 8. a dispersion pipe; 9. a second clapboard; 10. a third clapboard; 11. an aeration net; 12. a sludge outlet; 13. a stirring wheel; 14. a belt pulley; 15. an aeration pipe; 16. an air duct; 17. and (4) a stirring device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in the embodiment of the present invention, an integrated biological denitrification and sludge reduction device comprises a treatment tank 1, wherein a water inlet pipe 2 is connected to the upper left side of the treatment tank 1, a sludge outlet 12 is connected to the lower left side of the treatment tank 1, the sludge outlet 12 is a rectangular opening, the length of the opening is equal to the length of the side edge of the treatment tank 1, so that sludge is uniformly discharged from the lower side, a first partition plate 5 is arranged on the upper portion of the treatment tank 1, a stirring tank 4 is arranged above the first partition plate 5, the stirring tank 4 improves the contact time and area of water and air, a filter screen 3 is arranged on the left side of the stirring tank 4, the first partition plate 5 is inclined towards the lower right side, a sludge pump 6 is arranged on the lower right side of the stirring tank 4, the sludge pump 6 is connected with a sludge guide pipe 7, the sludge guide pipe 7 penetrates through the left side of the first partition plate 5 and is connected, the air guide pipe 16 is transversely arranged above the first partition plate 5, the lower port of the air guide pipe 16 is higher than the mud guide pipe 7, a plurality of stirring devices 17 are rotatably connected in the air guide pipe 16, each stirring device 17 comprises a water wheel, a rotating shaft and a stirring blade, the water wheels are rotatably connected in the air guide pipe 16, the stirring blades are positioned in the stirring tank 4, the inner diameter of the air guide pipe 16 is tangent to the water wheels, a plurality of through holes are uniformly formed in the lower side of the air guide pipe 16, sludge is prevented from being accumulated in the pipe, an aeration net 11 is arranged on the upper side of the right end of the air guide pipe 16;

a second partition board 9 is arranged on the lower side of the first partition board 5, the right end of the second partition board 9 inclines upwards, the right end is suspended, three third partition boards 10 are arranged below the second partition board 9, the third partition board 10 on the uppermost side inclines upwards to the left, the left end is suspended, a plurality of stirring wheels 13 are arranged above the third partition board 10 on the uppermost side and the second partition board 9, the end part of a rotating shaft of each stirring wheel 13 is connected with a belt pulley 14, the belt pulley 14 is connected with power through a belt, the third partition board 10 on the lower side inclines downwards to the right, the right end is suspended, an aeration pipe 15 is arranged above the third partition board 10 on the middle side, the right end of the aeration pipe 15 is connected with a horizontal pipe, the horizontal pipe is connected with an aeration fan, strip-shaped grooves, and the upside is equipped with the through-hole of slope, and the side is gone up to the through-hole perpendicular to, when switching on mud, reduces the disturbance between the upper and lower floor.

The utility model discloses a theory of operation is: when the device is used, water enters through the water inlet pipe 2, the large particles and suspended matters are fixed and filtered by the filter screen 3, sewage is stirred by the stirring tank 4 and then enters the dispersion pipe 8 through the sludge pump 6, aeration is carried out through the aeration fan, bubbles are discharged from the aeration pipe 15, aeration is carried out to the aeration reaction area in an aeration mode, dissolved oxygen is reasonably controlled by adjusting aeration amount, the aeration reaction area is in a facultative state, organic matters in the sewage are degraded under the action of microorganisms, meanwhile, ammonia nitrogen in the water is converted into nitrogen under the action of nitrobacteria and denitrifying bacteria and is removed from the water, so that nitrification-denitrification synchronization is realized, tail gas generated by aeration is discharged to the air guide pipe 16 through the through holes of the second partition plate 9 and the third partition plate 10 and then is discharged through the aeration net 11, the gas drives the stirring device 17 to rotate, the mixture is carried out in the stirring tank 4, and the sludge is driven, the sludge with high viscosity slowly falls to the anaerobic reaction zone from the through hole of the rightmost partition plate three 10, the sludge with low viscosity falls from the right side after being stirred by the aerator pipe 15, the intermediate partition plate three 10 reduces the influence of upper disturbance, the part of sludge generates a large amount of organic micromolecules such as volatile fatty acid through anaerobic digestion, the part of organic micromolecules can provide a high-quality carbon source for the biological denitrification process of the aeration reaction zone, simultaneously the sludge amount is reduced, thereby realizing the dual purposes of denitrification of the whole biological sewage and sludge reduction, and finally discharging the sludge from the sludge outlet 12.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An integrated biological denitrification and sludge reduction device comprises a treatment box (1) and is characterized in that, the left upper side of the treatment box (1) is connected with a water inlet pipe (2), the left lower side of the treatment box (1) is connected with a sludge outlet (12), the treatment tank is characterized in that a first partition plate (5) is arranged on the upper portion of the treatment tank (1), a stirring tank (4) is arranged above the first partition plate (5), a filter screen (3) is installed on the left side of the stirring tank (4), the first partition plate (5) is obliquely arranged towards the lower right side, a sludge pump (6) is installed on the lower right side of the stirring tank (4), the sludge pump (6) is connected with a sludge guide pipe (7), the sludge guide pipe (7) penetrates through the left side of the first partition plate (5) and is connected to a dispersion pipe (8) on the lower side of the first partition plate (5), an air guide pipe (16) is arranged below the left side of the first partition plate (5) of the treatment tank (1;

the downside of baffle one (5) is equipped with baffle two (9), the right-hand member of baffle two (9) is towards the top slope, and the right-hand member is unsettled, the below of baffle two (9) is equipped with three baffles three (10), baffle three (10) of the top set up towards the upper left side slope, the left end is unsettled, the top of baffle three (10) of the top and baffle two (9) all is equipped with a plurality of stirring wheels (13), the pivot end connection of stirring wheel (13) has belt pulley (14), belt pulley (14) are connected with power through the belt, baffle three (10) of downside is towards the slope of right side below and is set up, the right-hand member is unsettled, the top of intermediate bottom three (10) is equipped with aeration pipe (15), horizontal pipe is connected to the right-hand member of aeration pipe.

2. The integrated biological denitrification and sludge reduction device according to claim 1, wherein the gas-guide tube (16) is transversely arranged above the first partition plate (5), and the lower port of the gas-guide tube (16) is higher than the sludge-guide tube (7).

3. The integrated biological denitrification and sludge reduction device according to claim 1, wherein the stirring device (17) comprises a water wheel, a rotating shaft and stirring blades, the water wheel is rotatably connected in the gas-guide tube (16), the stirring blades are positioned in the stirring tank (4), and the inner diameter of the gas-guide tube (16) is tangential to the water wheel.

4. The integrated biological denitrification and sludge reduction device according to claim 1, wherein the lower side of the air duct (16) is uniformly provided with a plurality of through holes to prevent sludge from accumulating in the duct, and the upper side of the right end of the air duct (16) is provided with an aeration net (11).

5. The integrated biological denitrification and sludge reduction device according to claim 1, wherein the upper sides of the second partition plate (9) and the third partition plate (10) are provided with strip-shaped grooves parallel to each other, and the upper sides are provided with inclined through holes perpendicular to the upper side.

6. The integrated biological denitrification and sludge reduction apparatus according to claim 1, wherein the sludge outlet (12) is a rectangular opening having a length equal to the length of the side of the treatment tank (1).