CN108585206A - A kind of waste water moved bed biochemistry be separated by solid-liquid separation purifying integration device - Google Patents

Abstract

The present invention proposes a kind of waste water moved bed biochemistry and is separated by solid-liquid separation purifying integration device, pond body including sewage-treatment plant and its outer partition wall, and pond body is separated into the water purification Disengagement zone of the biochemical reaction zone and the other side of side by the internal partition wall being arranged in pond body, internal partition wall；The water inlet pipe that influent side outer partition wall top in biochemical reaction zone is equipped with inlet opening and is connect with inlet opening, the pond body inner wall in inlet opening side are equipped with water inlet overflow weir notch, and water inlet overflow weir notch is located above biochemical reaction zone；Two pieces of vertical deflectors are provided with to positional symmetry corresponding with the outer partition wall of influent side, the internal partition wall of water outlet side in biochemical reaction zone, biochemical reaction zone is separated into the return flow line area of the return flow line area of influent side, intermediate aeration zone and water outlet side by deflector.Structure of the invention is compact, and biochemical reaction is concentrated in integral structure completing with mud-water separation purification process, have take up an area less, with good investment, operating cost is low, the remarkable result of high treating effect.

Description

A sewage moving bed biochemical and solid-liquid separation and purification integrated device

technical field

The invention relates to the field of a sewage treatment method and technical device, and more specifically relates to a sewage moving bed biochemical and solid-liquid separation and purification integrated device.

Background technique

The moving bed biofilm reactor (MBBR) process absorbs the advantages of the traditional fluidized bed and biological contact oxidation processes. The core is to directly add a certain proportion of suspended fillers with a specific gravity close to water into the reactor, as microorganisms. The active carrier can greatly increase the biomass and biological species in the reactor, thus greatly improving the efficiency of sewage treatment.

As a process that combines the activated sludge method of suspended growth and the biofilm method of attached growth, the current MBBR reactor has the advantages of both, and has the outstanding advantages of simple operation, small footprint, and high treatment efficiency; but In the biochemical reaction tank, there are also aeration dead zones to varying degrees, the distribution of suspended fillers is uneven, the movement is uneven, the suspended fillers are easy to lose, easy to accumulate in the water outlet and dead corners of the reactor, and there are biofilm debris with tiny air bubbles in the effluent Suspended solids, it is difficult to carry out effective precipitation, purification and separation. Therefore, the application of this technology is limited.

The main problems in the application of MBBR aerobic biochemical reactor at present:

1. The design of MBBR reactor is very difficult, and it is difficult to achieve the best working condition. Each MBBR reactor in the actual project is specific. In the MBBR aerobic biochemical reactor, the suspended filler is in a suspended flow state relying on the lifting effect of aeration and water flow, and the sufficient flow circulation of the suspended filler in the reaction tank, It depends on the structure that determines the hydraulic characteristics of the reaction tank and the reasonable arrangement of the aeration intake pipeline. Therefore, in order to ensure and satisfy the sufficient flow and circulation of suspended fillers in a specific reaction tank, it is necessary to perform complex hydraulic characteristic calculations based on the structure of the specific reaction tank to determine the layout of the intake pipeline and optimize the distribution of aerators in the tank. Adjust the aeration volume of a single aerator according to the actual aeration conditions, and optimize the structure and hydraulic characteristics of the reaction tank through a large number of tests.

But at present, it is difficult to do it in most of the actual engineering design. Therefore, in the actual engineering, it exists to varying degrees. Balanced, it is prone to the defects of local filler accumulation; or blindly increase the aeration volume in order to overcome these defects, resulting in excessive aeration energy consumption.

2. Due to the special hydraulic characteristic requirements of the MBBR reactor, it is difficult to realize large-scale. Due to the special hydraulic characteristics requirements of the MBBR aerobic biochemical treatment tank, in order to overcome the dead zone in the reaction tank to varying degrees and the defects of local filler accumulation, according to a large number of tests, the length-depth ratio of a single MBBR aerobic biochemical treatment tank is When the length is about 0.5 and the length is not more than 3m, it is conducive to the complete movement of the suspended filler, or the problem of dead angle in the pool can be solved by setting a deflector in the pool to form a forced circulation, which can reduce the air-water ratio to about 4:1. Therefore, in the traditional MBBR aerobic biochemical treatment tank, in order to avoid the occurrence of the above phenomenon, the tank volume of each single reaction tank body should not be too large. When a large-scale MBBR aerobic biochemical treatment tank is required in an actual project, it can only be realized by connecting multiple small MBBR aerobic biochemical treatment tanks in series or in parallel, which increases the difficulty of engineering construction and increases the engineering cost. This is also the reason why the MBBR process is mostly suitable for small and medium-sized domestic sewage and industrial organic wastewater treatment in practical engineering applications, especially for integrated sewage treatment devices.

3. The possible disadvantages of the large-scale MBBR reactor. When it is necessary in actual engineering, or to improve the single-tank treatment capacity of the MBBR aerobic biochemical treatment tank, it is necessary to set the reaction tank body in the form of a rectangle, which will cause the suspended filler to gather at the water outlet along the direction of the water flow, so it is necessary Set filler return equipment and pipelines at the water outlet. However, the backflow of fillers will greatly increase the energy consumption of the system. At the same time, the fillers collide with each other in the pipeline, which will cause a large amount of anaerobic and anoxic biofilms to fall off on the fillers and affect the treatment effect of the system; Filling blockage is prone to occur. In addition, the underwater agitators arranged in random places are prone to hydraulic dead angles, which also cause a large amount of fillers to accumulate in the dead water area. Otherwise, it is necessary to set up a high-power agitator to stir, and the stirring intensity is too high, firstly, it will cause excessive energy consumption, and secondly, it will cause the wear of the suspended filler and the difficulty of attaching the biofilm on the filler.

4. The outlet end of MBBR reactor is equipped with grids and grids to intercept suspended fillers, which are prone to blockage. In order to avoid the loss of suspended fillers at the outlet of the MBBR reaction tank with the water flow, it is often necessary to set up grids and sieve plates to intercept the fillers. The grid plate should be manually cleaned regularly, or an air blowback device should be installed to prevent clogging.

5. The suspended matter in the effluent water of MBBR reactor is so small that it is difficult to settle, separate and purify. The suspended filler in the MBBR reactor is scoured and collided with the gas-liquid flow, and the aging biofilm can be shed and renewed in time, which improves the efficiency of biochemical treatment of sewage; but at the same time, there are tiny bubbles attached to the reactor effluent. Suspended matter of biofilm debris is difficult to effectively settle and separate, affecting the quality of effluent water and other issues.

In order to overcome the above disadvantages in the traditional MBBR reactor and its application, it is necessary to optimize the structure of the MBBR reactor, as well as the outlet grid, grid and outlet solid-liquid separation settler, and design a significantly improved single MBBR biochemical tank. The processing capacity eliminates the aeration and fluidization dead zone in the reaction tank, prevents the accumulation of fillers in the local area, and highly integrates the high-efficiency biochemical and liquid-solid precipitation separation and purification functions of the moving bed biofilm, which can be applied to various processing capacities. A sewage treatment device integrating bed biochemical purification and gas-liquid-solid separation and purification.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art. The present invention provides a sewage moving bed biochemical and solid-liquid separation and purification integrated device, which can significantly improve the hydraulic flow characteristics in the MBBR aerobic biochemical reactor (pool), Reduce the energy consumption of aeration and fluidization, reduce and eliminate the dead zone in the reactor (pool), achieve the uniform distribution of suspended filler movement, prevent the accumulation of fillers at the water outlet, simple design, simple engineering construction, integrated moving bed biofilm biochemical purification and gas Sewage treatment device integrating liquid-solid separation and purification.

Technical scheme of the present invention is realized like this:

A sewage moving bed biochemical and solid-liquid separation and purification integrated device, comprising: the pool body 1 of the sewage treatment device and its outer partition wall, and the inner partition wall 11 arranged in the pool body 1, the inner partition wall 11 will The pool body 1 is divided into a biochemical reaction zone 8 on one side and a water purification separation zone 12 on the other side; the upper part of the outer partition wall on the water inlet side of the biochemical reaction zone 8 is provided with a water inlet and a water inlet pipe 2 connected to the water inlet , the inner wall of the pool body 1 on the side of the water inlet is provided with a water inlet overflow weir groove 3, and the water inlet overflow weir groove 3 is located above the biochemical reaction zone 8; in the biochemical reaction zone 8 and the outer partition wall on the water inlet side 1. Two vertical deflectors 4 are symmetrically arranged at the corresponding position of the inner partition wall 11 on the water outlet side, and the deflectors 4 divide the biochemical reaction zone 8 into a backflow channel area 5- 1. The middle aeration zone 8-1 and the backflow channel zone 5-2 on the water outlet side; the biochemical reaction zone 8 is filled with suspended fillers 6;

The middle part of the inner partition wall 11 is provided with a passage hole for installing a water screen 11-1, and the upper edge of the water screen 11-1 is provided with a discontinuous strip-type exhaust narrowing at the position connected to the inner partition wall 11. Seam 11-2; the lower part of the inner partition wall 11 is provided with a mud-down notch 16;

In the water separation zone 12, the air guide baffle 13 is connected to the higher end of the upper edge of the exhaust slit 11-2, slopes down to the surface of the mud swash plate 15, and between the mud swash plate 15 There are narrow flow slots 14 formed at intervals; the higher end of the sliding mud ramp 15 is connected to the outer partition wall of the pool body 1, and the lower end is inclined downward to the mud lowering notch 16 and connected to the mud lowering notch 16 along the lower end;

In the water purification separation area 12, an inclined tube filter filler 17 is also arranged above the air guide baffle 13, and an outlet overflow weir groove 18 is arranged on the inner wall of the outer partition wall above the inclined tube filter filler 17, and the overflow weir Groove 18 has water outlet hole and the outlet pipe 19 that is connected with water outlet hole by the side of outer partition wall.

Preferably, the deflector 4 is a vertical rectangular partition, and the upper end keeps a distance from the top of the pool and is submerged in water, and the lower end keeps a distance from the bottom of the pool; the left and right ends of the deflector 4 are respectively connected to The outer partition walls on the left and right sides of the pool body 1 are connected, symmetrically located on both sides of the water inlet and outlet ends of the biochemical reaction zone 8 of the pool body 1, and divide the biochemical reaction zone 8 of the pool body 1 into the backflow channel area 5- 1. The middle aeration zone 8-1 and the backflow channel zone 5-2 on the outlet side.

Preferably, the width of the exhaust slit 11-2 on the inner partition wall 11 and the diameter of the hole of the screen 11-1 are both smaller than the diameter of the suspended packing 6, so as to intercept the suspended packing 6 and let the water flow through.

Preferably, filler sliding sloping plates 7 are respectively provided at the lower corners of the backflow channel area 5-1 on the water inlet side and the backflow channel area 5-2 on the water outlet side.

Preferably, the sliding sloping plate 7 is a rectangular plate inclined towards the middle of the pool at a certain angle; the upper edge of the sliding sloping plate 7 at the lower part of the backflow channel area 5-1 on the water inlet side is connected to the inner wall of the outer partition wall of the pool body 1 , the lower edge is connected with the inner wall of the bottom of the pool body 1; the upper edge of the sliding slant plate 7 at the lower part of the backflow passage area 5-2 on the outlet side is connected with the side wall of the inner partition wall 11, and the lower edge is connected with the inner wall of the bottom of the pool body 1; It is convenient for the suspended filler 6 settled and fallen in the backflow channel area 5-1 on the water inlet side and the backflow channel area 5-2 on the water outlet side to slide down and gather to the middle aeration area 8-1 at the bottom of the pool body 1 .

Preferably, an air pipe 9 is provided at the bottom of the middle aeration zone 8-1, and an aerator 10 is installed on the air pipe 9.

Preferably, the air pipe 9 provided at the bottom of the intermediate aeration zone 8-1 is a perforated aeration pipe.

Preferably, the air pipe 9 provided at the bottom of the intermediate aeration zone 8-1 is a pipe for installing an aerator 10, and the aerator 10 may be one of an aeration pan or a microporous aeration tube.

Preferably, the top level of the inlet overflow weir groove 3 is higher than the top level of the outlet overflow weir groove 18 .

Compared with the prior art, the present invention has the following advantages:

(1) The structure of the present invention is compact, and the aerobic and anoxic biochemical reactions of sewage treatment, sludge sedimentation and separation, and water purification and effluent processes are completed in an integrated unit structure, which improves the efficiency of sewage purification and treatment, and has the advantages of less land occupation, Low investment, low operating cost, good treatment effect and remarkable effect.

(2) An aerator is installed at the middle bottom of the biochemical reaction area to form an intermediate aeration and fluidization area where the water flow and suspended filler rise, and the backflow channel area on the water inlet side and the backflow channel area on the water outlet side are set as aeration blind areas, Thus, the entire biochemical reaction area is divided into an aeration area in which the water flow and suspended packing rise in the middle, and the water flow on the water inlet side and the water outlet side and the return and fall passage area where the suspended packing descends; the water body in the pool is under the action of aeration. Form the influent water and part of the circulating return water body, flow and mix from the backflow channel area on the water inlet side of the biochemical reaction zone from top to bottom, and flow and mix part of the circulating backflow water body from the backflow channel area on the water outlet side of the biochemical reaction zone from top to bottom, and Respectively return from the return passage area on both sides to the aeration area in the middle of the bottom of the tank, and under the action of aeration and air lift, they will flow upward and mix, ensuring that the water flow is fully and uniformly mixed and circulated in the entire biochemical reaction area. The hydraulic flow characteristics in the biochemical reaction area prevent the accumulation of suspended fillers around the pool body in the biochemical reaction area; realize the balanced suspension and movement of suspended fillers in the water flow in the biochemical reaction area with less aeration, and achieve This ensures that the suspended filler and the water flow are fully and repeatedly contacted and washed, reduces the energy consumption of aeration and fluidization, and improves the purification treatment effect of removing pollutants in sewage.

(3) Set the water outlet area in the backflow channel area on the water outlet side of the biochemical reaction area, and set the screen at the predetermined position of the inner partition wall. The water outlet area is located on one side of the entire biochemical reaction area. One is to avoid setting the water outlet hole Around the reaction pool, the effluent flow in the pool will bring a large amount of suspended filler to the water outlet hole to cause blockage; the second is to achieve the discharge of the sewage entering the biochemical reaction area after being fully and uniformly mixed and purified, so that the pollutants in the sewage can be removed and purified The treatment effect is effectively guaranteed.

(4) Set the screen in the water outlet area in the backflow channel area located on the water outlet side of the water flow and the suspended filler, and the outlet water flows into the clean water separation area through the screen with a small flow rate; while the recycled sewage flows in a larger flow rate The suspended packing flowing downwards and flowing back with the large flow of sewage is difficult to attach and stay on the screen, which effectively avoids the accumulation and blockage of the suspended packing on the screen.

(5) An oblique slide plate 7 is set at the bottom of the two reflux and fall zones in the biochemical reaction zone, so that the suspended fillers that fall back can slide and collect to the bottom of the middle aeration and fluidization zone, so as not to cause the suspended fillers to accumulate at the bottom of the reflux and fall zones .

(6) The entire biochemical reaction area is divided into: the backflow channel area on the water inlet side, the intermediate aeration area and the backflow channel area on the water outlet side, and the design of combining the water outlet area with the mixed liquid sewage backflow and the suspended filler fallback area , simplifies the complex work of optimizing the structure and hydraulic characteristics of the reactor through a large number of tests in the actual engineering design, and greatly reduces the difficulty of engineering design of the MBBR aerobic biochemical reactor.

(7) The separation of gas-liquid and sludge is carried out by using a side-separation gas-liquid separation and solid-liquid separation device, which is more conducive to the effective sedimentation and separation of fine biofilm debris suspended matter with tiny air bubbles attached to the effluent. The lateral gas-liquid-solid separation purification area is arranged in the horizontal direction of the biochemical reaction area, which greatly reduces the vertical height of the device, and the water inlet from the inner side and the water outlet from the outer side make the structure of the whole device more compact.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the operating state of the present invention.

Fig. 3 is a schematic cross-sectional view of a-a in Fig. 1 .

Fig. 4 is a schematic cross-sectional view of b-b in Fig. 1 .

Figure 5 is a schematic diagram of the screen.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figure 1-5, a sewage moving bed biochemical and solid-liquid separation and purification integrated device, including: the pool body 1 of the sewage treatment device and its outer partition wall, and the inner partition wall 11 arranged in the pool body 1, The inner partition wall 11 divides the pool body 1 into a biochemical reaction zone 8 on one side and a water purification separation zone 12 on the other side; the upper part of the outer partition wall on the water inlet side of the biochemical reaction zone 8 is provided with a water inlet and a water inlet. The water inlet pipe 2 connected by the water hole is provided with an inlet overflow weir groove 3 on the inner wall of the pool body 1 on the side of the water inlet hole, and the water inlet overflow weir groove 3 is located above the biochemical reaction zone 8; in the biochemical reaction zone 8 and The outer partition wall on the water inlet side and the inner partition wall 11 on the water outlet side are symmetrically provided with two vertical deflectors 4, and the deflectors 4 divide the biochemical reaction zone 8 into water inlet The backflow channel area 5-1 on the side, the middle aeration area 8-1 and the back flow channel area 5-2 on the water outlet side; the biochemical reaction area 8 is filled with suspended fillers 6; the bottom of the middle aeration area 8-1 is provided with The air pipe 9 is equipped with an aerator 10; the backflow channel area 5-1 on the water inlet side and the lower corner of the backflow channel area 5-2 on the water outlet side are respectively provided with a filler sliding sloping plate 7; the inner partition wall The middle part of 11 is provided with an overflow hole for installing a water-passing screen 11-1, and the position where the upper edge of the water-passing screen 11-1 is connected to the inner partition wall 11 is provided with an intermittent strip-shaped exhaust slit 11-2; The lower part of the inner partition wall 11 is provided with a mud drop notch 16; in the water purification separation area 12, the air guide baffle 13 is connected to the higher end of the upper edge of the exhaust slit 11-2, and slopes downward to the sliding The surface of the mud ramp 15, and there is a gap between the mud ramp 15 to form a strip-shaped flow inlet 14; the higher end of the mud ramp 15 is connected to the outer partition wall of the pool body 1, and the lower end is inclined Down to the lower mud notch 16 and connected to the lower edge of the lower mud notch 16; the water separation zone 12 is also provided with an inclined tube filter filler 17 above the air guide baffle plate 13, and the inclined tube filter filler Above 17, an outlet overflow weir groove 18 is arranged on the inner wall of the outer partition wall, and the overflow weir groove 18 has a water outlet hole and an outlet pipe 19 connected with the water outlet hole on one side of the outer partition wall.

In this embodiment, the deflector 4 is a vertical rectangular partition, and the upper end keeps a distance from the top of the pool and is submerged in water, and the lower end keeps a distance from the bottom of the pool; The outer partition walls on the left and right sides of the body 1 are connected, symmetrically located on both sides of the water inlet and outlet ends of the biochemical reaction area 8 of the pool body 1, and divide the biochemical reaction area 8 of the pool body 1 into a backflow channel area 5-1 on the water inlet side , the middle aeration zone 8-1 and the backflow channel zone 5-2 on the water outlet side.

The width of the exhaust slit 11-2 on the inner partition wall 11 and the diameter of the hole of the screen 11-1 are both smaller than the diameter of the suspended packing 6, which are used to intercept the suspended packing 6 and let the water flow through. The sliding sloping plate 7 is a rectangular plate inclined to the middle of the pool at a certain angle; the upper edge of the sliding sloping plate 7 at the lower part of the return passage area 5-1 on the water inlet side is connected to the inner wall of the outer partition wall of the pool body 1, and the lower edge is connected to the inner wall of the pool body 1. Body 1 is connected to the inner wall at the bottom of the pool; the upper edge of the sliding slant plate 7 at the bottom of the return passage area 5-2 on the water outlet side is connected to the side wall of the inner partition wall 11, and the lower edge is connected to the inner wall at the bottom of the pool body 1; it is convenient for the water inlet side The suspended filler 6 settled and fallen in the backflow channel area 5-1 and the backflow channel area 5-2 on the water outlet side slides down and gathers to the middle aeration area 8-1 at the bottom of the tank body 1 .

Suspended filler 6 is a plastic filler that has a large specific surface area, good hydrophilicity, is easy to attach and grow biofilm, and has a specific gravity similar to that of water. After attaching and growing biofilm, it is a plastic filler in a suspended state in the water flow under aeration.

The air pipe 9 provided at the bottom of the middle aeration area 8-1 is a perforated aeration pipe, and may also be a pipe for installing an aerator 10, and the aerator 10 may be an aeration pan or a microporous aeration pipe. kind.

The top level height of the water inlet overflow weir groove 3 is higher than the top level height of the water outlet overflow weir groove 18 .

The working principle of the present invention is: the sewage to be treated is transported to the water inlet pipe 2 of the biochemical reaction tank through the water inlet pump, flows into the water inlet overflow weir groove 3, and after the water is full, it enters the water surface of the water inlet side of the biochemical reaction zone 8 through uniform water distribution , mixed with the water flow above the backflow channel area 5-1 on the inlet side from the middle aeration area 8-1 and the suspended filler 6, and enter the backflow channel area 5-1 on the water inlet side, from the backflow channel area on the inlet side 5-1 flows from top to bottom to further fully mix and contact; and flow back from the backflow channel area 5-1 on the inlet side to the middle aeration area 8-1 at the bottom of the pool, and toss under the aeration and air lift of the aerator 10 upward flow.

Under the action of aeration, the water body in the middle aeration zone 8-1 is highly mixed and tumbling and flows upwards to the water surface, and a part of the water flowing upwards to the water surface flows back to the return channel zone 5-1 on the water inlet side from top to bottom; The other part flows to the backflow channel area 5-2 on the water outlet side from top to bottom. At the position of the screen 11-1 in the middle of the backflow channel area 5 on the water outlet side, a small amount of outlet water flows through the screen 11-1 and enters the water purification separation area 12. A large amount of water flows back from the backflow channel area 5-2 on the water outlet side to the bottom of the pool in the middle aeration area 8-1.

The water flow mixed with the suspended filler 6, under the aeration effect of the aerator 10 in the middle aeration zone 8-1 of the biochemical reaction zone 8, forms a water body to flow upwards from the bottom of the middle aeration zone 8-1. The upward flow of the water body in the middle aeration zone 8-1 and the continuity of the water body cause the water bodies in the backflow channel areas on both sides to flow downward continuously and diffuse to the middle aeration zone 8-1, while the water inlet side The backflow channel area 5-1 and the backflow channel area 5-2 on the water outlet side are aeration blind areas, and no upwardly flowing water will be generated, so that the water body formed in the middle aeration area 8-1 of the biochemical reaction area 8 flows upward. The water body in the backflow passage area on both sides of the water inlet and the water outlet is a circulating water flow that flows downward.

When the mixed liquid water flow mixed with the suspended filler 6 attached to the growing biofilm flora is circulated in the biochemical reaction zone 8, sufficient aeration, oxygenation and mixed contact are carried out, so that the mixed liquid water flow is under good dissolved oxygen conditions. , the biofilm bacteria group on the suspended filler 6 conducts contact oxidation reaction with organic matter, ammonia nitrogen and other pollutants in the sewage, so that most of the organic matter, ammonia nitrogen and other pollutants in the sewage are degraded and removed.

After the biological contact oxidation purification treatment, the mixed liquid water mixed with the suspended filler 6 circulates downward through the screen 11-1 area of the inner partition wall 11 in the backflow channel area 5-2 on the outlet side, and a small amount of circulating water flows through the flat plate Shaped screen cloth 11-1 enters the clean water separation zone 12. The suspended filler 6 is intercepted by the flat screen 11-1, falls back to the bottom of the backflow and fall channel area 5-2 with a large amount of downward circulating water flow, and gathers and slides to the middle aeration in the biochemical reaction area 8 along the sliding sloping plate 7. In zone 8-1, under the tumbling and stirring of the aerated water flow, the suspension floats upwards to the water surface. The effluent flow through the screen 11-1 enters the clean water separation area 12, flows downward along the air guide baffle 13, and the air bubbles attached to the sludge escape, floats upward to the air guide baffle 13, and is naturally deposited Under the action, the air bubbles with light specific gravity rise, rise along the lower surface of the air guide baffle 13 to the exhaust slit 11-2 at the connection with the screen 11-1, and enter the backflow channel area 5-2 on the outlet side to dissolve into biological In the reaction zone 8, the separation of gas, solid sludge and liquid water flow is realized; at the same time, the water flow through the separation of gas and mud, under the action of hydraulic pressure, continues to flow downward along the air guide baffle 13, passes through the air guide baffle 13 and The flow slit 14 between the sloping mud sloping plates 15 flows upwards, and the sludge with a larger mass in the water flow of the mixed degassed sludge settles down and slides down the sloping mud sloping plates 15 due to its high specific gravity, and passes through the bar. Type mud down notch 16 flows into the mud tank at the bottom of biological reaction zone 8, and the water flow mixed with the sludge with less quality then enters the air guide baffle plate 13 top through the overflow slit 14 on the sliding mud swash plate 15. The solid-liquid separation area flows upwards into the inclined tube packing area 17, the solid sludge settles down along the inclined tube, and the water flow rises along the inclined tube and enters the water purification stabilization chamber to realize the separation of solid sludge and liquid water flow, and passes through the inclined tube packing 17 The water flow that is further purified by cement separation rises to the clean water level, evenly overflows into the outlet overflow weir groove 18, and is discharged through the outlet pipe 19.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device, which is characterized in that including：Sewage-treatment plant Pond body (1) and its outer partition wall, and internal partition wall (11) in pond body (1) is set, the internal partition wall (11) is by pond body (1) point It is divided into the biochemical reaction zone (8) of side and the water purification Disengagement zone (12) of the other side；The outer partition wall of biochemical reaction zone (8) influent side The water inlet pipe (2) that top is equipped with inlet opening and is connect with inlet opening, pond body (1) inner wall in inlet opening side are equipped with water inlet overflow Weir notch (3), water inlet overflow weir notch (3) are located above biochemical reaction zone (8)；In biochemical reaction zone (8) with influent side it is outer every Wall, water outlet side internal partition wall (11) corresponding positional symmetry be provided with two pieces of vertical deflectors (4), the deflector (4) biochemical reaction zone (8) are separated into the return flow line area (5-1) of influent side, intermediate aeration zone (8-1) and water outlet side Return flow line area (5-2)；It is filled with floating stuffing (6) in the biochemical reaction zone (8)；

Be equipped with the flowing hole for installing water sieve net (11-1) in the middle part of the internal partition wall (11), it is described cross water sieve net (11-1) upper edge with The connected position of internal partition wall (11) is equipped with the exhaust slot (11-2) of interruption stripe shape；Internal partition wall (11) lower part is equipped with lower mud slot Mouth (16)；

In the water purification Disengagement zone (12), Air guiding flap (13) is connected to the higher end of exhaust slot (11-2) upper end edge, inclines It is oblique down toward slip inclined plate (15) surface, and between slip inclined plate (15) there are spacing formed stripe shape overcurrent narrow orifice (14)； Slip inclined plate (15) higher end is connected on the outer partition wall of pond body 1, and relatively low one end to lower mud slot mouth (16) and connects diagonally downward It is connected to the lower end edge of lower mud slot mouth (16)；

In the water purification Disengagement zone (12), it is located above Air guiding flap (13) and is additionally provided with inclined tube filter packing (17), the inclined tube It is located at outer partition wall inner wall above filter packing (17) and is equipped with effluent overflow weir water slot (18), the outer partition wall side of overflow weir notch (18) is opened There are apopore and the outlet pipe being connect with apopore (19).

2. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as described in claim 1, which is characterized in that institute It is vertical rectangular clapboard to state deflector (4), and upper end and Chi Ding keep at a distance and flood in water, lower end and bottom of pond keep away from From；The left and right both ends of the deflector (4) are connected with outer partition wall at left and right sides of pond body (1) respectively, are symmetrically located at pond body (1) Pond body (1) biochemical reaction zone (8) is divided into the return flow line of influent side by the water inlet end of biochemical reaction zone (8), water outlet both sides Area (5-1), intermediate aeration zone (8-1) and water outlet side return flow line area (5-2).

3. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as described in claim 1, which is characterized in that institute The width for the exhaust slot (11-2) on internal partition wall (11) stated and the diameter in the hole of sieve (11-1) are both less than floating stuffing (6) Diameter, allow flow to pass through for intercepting floating stuffing (6).

4. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as described in claim 1, which is characterized in that into The return flow line area (5-1) of water side and return flow line area (5-2) lower corners of water outlet side are respectively equipped with filler and slide inclined plate (7)。

5. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as claimed in claim 4, which is characterized in that institute State slide inclined plate (7) be rectangular slab at an angle to pond intermediate, inclined；Lower part return flow line area (5-1) of the influent side The upper edge for sliding inclined plate (7) is connected with the outer partition wall inner wall of pond body (1), and lower edge is connected with pond body (1) bottom of pond inner wall；Water outlet side The upper edge of landing inclined plate (7) of the lower part return flow line area (5-2) be connected with internal partition wall (11) side wall, lower edge and pond body (1) bottom of pond inner wall is connected；It falls convenient for sedimentation in the return flow line area (5-1) of influent side, the return flow line area (5-2) of water outlet side Floating stuffing (6) landing be collected to aeration zone (8-1) among pond body (1) bottom.

6. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as described in claim 1, which is characterized in that in Between the bottom aeration zone (8-1) be provided with air hose (9), aerator (10) is housed on air hose (9).

7. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as claimed in claim 6, which is characterized in that institute The air hose (9) for stating the bottom intermediate aeration zone (8-1) setting is boring aeration pipe.

8. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as claimed in claim 6, which is characterized in that institute The air hose (9) for stating the bottom intermediate aeration zone (8-1) setting be the pipeline of installation aerator (10), and the aerator (10) can be with It is one kind of aeration plate or micropore aeration pipe.

9. a kind of waste water moved bed biochemistry and separation of solid and liquid purifying integration device as described in claim 1, which is characterized in that institute State the top level height for being higher than effluent overflow weir water slot (18) into the top level height of water overflow weir notch (3).