CN217808917U

CN217808917U - Domestic sewage integration processing system

Info

Publication number: CN217808917U
Application number: CN202222241382.XU
Authority: CN
Inventors: 金吉中; 李吉春; 丁颖; 赵鹏; 张思兰; 刘俊; 梁彪; 曹凯尧
Original assignee: Chongqing Fuling District Ecological Environment Bureau; CCTEG Chongqing Engineering Group Co Ltd
Current assignee: Chongqing Fuling District Ecological Environment Bureau; CCTEG Chongqing Engineering Group Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-11-15
Anticipated expiration: 2032-08-25

Abstract

The utility model relates to a domestic sewage treatment technical field discloses a domestic sewage integration processing system, including the equalizing basin, the acidizing pond of hydrolysising, aeration tank and sedimentation tank, be equipped with the elevator pump in the equalizing basin, the play water end of elevator pump passes through the pipe connection with the acidizing pond of hydrolysising, be equipped with the combination filler in the aeration tank, the bottom of aeration tank is equipped with the water inlet, the upper portion of aeration tank is equipped with the delivery port, the water inlet intercommunication of acidizing pond and aeration tank of hydrolysising, the delivery port intercommunication of sedimentation tank and aeration tank, the longitudinal section of sedimentation tank is down the trapezoidal form, and the side of sedimentation tank is the contained angle 79-83 with the bottom surface. The utility model discloses a domestic sewage integration processing system can improve the purifying effect of sewage in aeration tank, also does benefit to the piling up of mud in the sedimentation tank bottom simultaneously.

Description

Domestic sewage integration processing system

Technical Field

The utility model relates to a domestic sewage treatment technical field, concretely relates to domestic sewage integration processing system.

Background

The rural domestic sewage mainly comprises kitchen sewage (vegetable washing water, dish washing water and the like), domestic washing sewage (sewage discharged by washing clothes), toilet washing water and the like of common families. Rural sewage has the characteristics of unfixed discharge time, small water quantity and complex water quality, the domestic sewage is discharged into natural water bodies in various modes and channels under the untreated condition, various pollutants directly enter rivers, and therefore eutrophication of the whole rural water quality is caused, and various related ecological problems are caused.

The sewage treatment system that usually adopts at present includes equalizing basin, hydrolysis-acidification tank, aeration tank and sedimentation tank, passes through the pipe connection between equalizing basin and the hydrolysis-acidification tank, is equipped with the elevator pump in the equalizing basin, and the pipe connection is passed through with the upper portion of aeration tank in the hydrolysis-acidification tank, and the aeration tank passes through the pipe connection with the sedimentation tank, is equipped with the combined packing in the aeration tank. The sewage in the adjusting tank is injected into the hydrolysis acidification tank by starting the lift pump, the sewage flows into the aeration tank from the upper part of the aeration tank after being treated by the hydrolysis acidification tank, and the sewage flows into the sedimentation tank after being treated by the aeration tank.

The technical scheme also has the following technical problems in use:

1. because the hydrolysis acidification tank is communicated with the upper part of the aeration tank, sewage treated by the hydrolysis acidification tank is injected into the aeration tank from the upper part of the aeration tank, so that the time of the sewage flowing to the bottom of the aeration tank is shortened under the action of gravity, the contact time of the sewage and the combined filler is shortened, the sludge amount hung on the combined filler is less, and the purification effect of the sewage in the aeration tank is influenced.

2. This sewage treatment system does not set up automatic control system, because rural sewage has the characteristics that the discharge time is unfixed, the water yield is little, if continuously open the elevator pump, must lead to the fact the waste of energy, also can increase the operation cost simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a domestic sewage integration processing system to improve the purifying effect of sewage in the aeration tank, also do benefit to piling up of mud in the sedimentation tank bottom simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a domestic sewage integration processing system, includes equalizing basin, hydrolysis-acidification pool, aeration tank and sedimentation tank, is equipped with the elevator pump in the equalizing basin, and the play water end of elevator pump passes through the pipe connection with hydrolysis-acidification pool, is equipped with combination filler, its characterized in that in the aeration tank: the bottom of aeration tank is equipped with the water inlet, and the upper portion of aeration tank is equipped with the delivery port, and hydrolysis-acidification tank communicates with the water inlet of aeration tank, and the delivery port of sedimentation tank and aeration tank communicates, and the longitudinal section of sedimentation tank is the shape of falling trapezoidal, and the side of sedimentation tank is 79-83 with the bottom surface contained angle.

The beneficial effect of this scheme does: the purification process of the sewage comprises the following steps: opening the elevator pump, go into the sewage pump in the equalizing basin in the hydrolytic acidification pond, sewage is through complicated biochemical reaction in the hydrolytic acidification pond, turns into the micro molecule material with macromolecular organic matter, and the water inlet of rethread aeration tank bottom flows to the aeration tank in by gravity, and sewage is in the aeration tank back of handling, flows to the sedimentation tank in by gravity from the delivery port on aeration tank upper portion, deposits mud in the sedimentation tank.

Because sewage flows in from the bottom of aeration tank, from the outflow on aeration tank upper portion, sewage is at the adverse current in aeration tank, has prolonged the detention time of sewage in aeration tank, make there be more mud to hang on the combination filler, thereby the content of activated sludge in aeration tank has been increased, and activated sludge can provide oxygen for the aerobic microorganism in aeration tank, make the existence that aerobic microorganism can be healthy, and can decompose the organic matter in the sewage, thereby the purifying effect of sewage in aeration tank has been improved.

The longitudinal section of the sedimentation tank is in an inverted trapezoid shape, so that the area of the bottom surface of the sedimentation tank is smaller, and the accumulation of sludge at the bottom of the sedimentation tank is facilitated; because the included angle formed between the side surface and the bottom surface of the sedimentation tank is 79-83 degrees, the side surface of the sedimentation tank is steeper, and the accumulation of sludge at the bottom of the sedimentation tank is facilitated; if the bottom surface of the sedimentation tank is large, the time for accumulating sludge for certain thickness can be long, however, sludge cakes are easy to form due to the long-time accumulation of the sludge, so that the sludge is difficult to pump out from the sedimentation tank.

And the control system comprises a sensor and a control module, the sensor, the control module and the lift pump are electrically connected, the sensor is arranged in the facultative anaerobic adjusting tank, and the sensor transmits a signal to the control module to control the start or stop of the lift pump.

The beneficial effect of this scheme does: because rural sewage has that the emission time is unfixed, the water yield is little, and quality of water is complicated characteristics, if continuously open the elevator pump, must lead to the fact the waste of the energy, still can increase the operation cost simultaneously, set up the sensor in the equalizing basin, when the sewage in the equalizing basin reaches a quantitative, the sensor will give control module with information transfer, control module will control the elevator pump and open, in the sewage pump that the elevator pump will adjust in the pond goes into hydrolysis acidification pond, begin to carry out purification treatment to sewage. The control system can intermittently start or close the lift pump according to the amount of sewage in the regulating reservoir, so that the sewage is purified, the energy waste is reduced, and the operation cost is saved.

Further, still include the sewage back flow, be connected through the sewage back flow between aeration tank and the hydrolysis-acidification tank, be equipped with sewage backwash pump on the sewage back flow.

The beneficial effect of this scheme does: as the hydrolysis acidification process of the sewage is the sludge digestion process, the sludge amount can be reduced in daily operation, and the content of the activated sludge in the hydrolysis acidification tank can be supplemented conveniently and timely.

Further, the device also comprises a septic tank communicated with the sewage source end, and the septic tank is connected with the regulating tank through a pipeline.

The beneficial effect of this scheme does: so that the sewage is preliminarily settled in the septic tank, impurities in the sewage are settled in the septic tank, and the impurities in the sewage are prevented from blocking subsequent pipelines.

Further, be equipped with the mud backwash pump in the sedimentation tank, the exit end of mud backwash pump is connected with the mud back flow, and the mud back flow is the three-way pipe, and the one end and the septic tank of mud back flow pass through the pipe connection, and the other end and the hydrolysis-acidification pond of mud back flow pass through the pipe connection.

The beneficial effect of this scheme does: on one hand, in order to supplement the sludge to the hydrolysis acidification tank, the sludge in the hydrolysis acidification tank is kept within a certain concentration range, and the content of the activated sludge in the hydrolysis acidification tank is increased, so that the sewage purification effect is improved; on the other hand, the amount of sludge is reduced through reflux, and the workload of clearing, digging, operation and maintenance is reduced.

Furthermore, a central cylinder is arranged above the sedimentation tank, and a phosphorus removal layer is arranged in the central cylinder.

The beneficial effect of this scheme does: as the main source of rural sewage is washing water, but various detergents contain phosphorus, if the sewage does not contain phosphorus, a large amount of phosphorus-containing sewage enters a water body, and then a large amount of algae can be propagated, so that ecological balance is destroyed.

Drawings

FIG. 1 is a process flow diagram of example 1 of the present invention;

FIG. 2 is a top view of the AO biochemical combination cell of example 1;

FIG. 3 is a front view of an AO biochemical combination cell.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a screen sand basin 1, a septic tank 2, an adjusting tank 3, a hydrolysis acidification tank 4, an aeration tank 5, a central cylinder 6, a sedimentation tank 7, a sewage reflux pump 8, a sludge reflux pump 9, an aeration device 10, a combined filler 11, a sludge reflux pipe 12 and a siphon breaker 13.

Example 1

Example 1 an integrated domestic wastewater treatment system, substantially as shown in figures 1 to 3, comprises a wastewater treatment system as shown in figure 1.

Sewage treatment system is including separating net grit chamber 1, septic tank 2, equalizing basin 3 and AO biochemical combination pond, separates net grit chamber 1 and is connected with sewage source end, separates to pass through the pipe connection between net grit chamber 1 and the septic tank 2, separates to be equipped with first clear mouth of drawing on net grit chamber 1, passes through the pipe connection between septic tank 2 and the equalizing basin 3, is equipped with the clear mouth of drawing of second on the septic tank 2, and bolted connection has the elevator pump bottom of equalizing basin 3.

As shown in fig. 2-3, the AO biochemical combined tank comprises a hydrolysis acidification tank 4, an aeration tank 5, a central cylinder 6 and a sedimentation tank 7, and the water outlet end of the lift pump is connected with the hydrolysis acidification tank 4 through a pipeline; the bottom of aeration tank 5 is equipped with the water inlet, the upper portion of aeration tank 5 is equipped with the delivery port, the middle part ligature of aeration tank 5 has combined filler 11, there is aeration equipment 10 bottom of aeration tank 5 through bolted connection, hydrolysis-acidification tank 4 passes through the pipe connection with the water inlet of aeration tank 5, be equipped with the sewage back flow between the delivery port of hydrolysis-acidification tank 4 and aeration tank 5, be equipped with sewage reflux pump 8 on the sewage back flow, the delivery port and the center tube 6 of aeration tank 5 pass through the pipe connection, it has the dephosphorization layer to spray in the center tube 6, be equipped with the delivery port on the center tube 6, center tube 6 is located the top of sedimentation tank 7, the sewage in the center tube 6 can flow to sedimentation tank 7 by oneself, the bottom of sedimentation tank 7 is fixed with sludge reflux pump 9 through the bolt, the exit end of sludge reflux pump 9 is connected with sludge reflux pipe 12, install siphon breaker 13 on the sludge reflux pipe, sludge reflux pipe 12 is the three-way pipe, one end of sludge reflux pipe 12 is connected with septic tank 2 through the pipe, sludge reflux pipe 12, the other end and hydrolysis-acidification tank 4 pass through the pipe connection, the longitudinal direction of sedimentation tank 7 is the shape of the down ladder, and the side of sedimentation tank is the side and is 79, and the bottom surface of this embodiment is preferably, sludge reflux pipe is the bottom surface, sludge reflux pipe 12, the side of 7 is.

The specific implementation process is as follows: the purification process of the sewage is as follows: domestic sewage passes through the screen grit chamber 1 to remove large impurities, floating objects and the like in the sewage, the sewage after primary treatment flows to the septic tank 2 automatically, the sewage is subjected to primary precipitation in the septic tank 2 and flows to the regulating tank 3 automatically, under the action of the lifting pump, the sewage in the regulating tank 3 is pumped into the hydrolysis acidification tank 4, the sewage is subjected to complex biochemical reaction in the hydrolysis acidification tank 4 to convert macromolecular organic matters into micromolecular substances, then flows into the aeration tank 5 automatically through a water inlet at the bottom of the aeration tank 5, and a part of the sewage after treatment in the aeration tank 5 flows back to the hydrolysis acidification tank 4 under the action of the sewage reflux pump 8, the other part of sewage flows into the central cylinder 6 through a water outlet at the upper part of the aeration tank 5, the sewage passes through a phosphorus removal layer in the central cylinder 6 to remove phosphorus in sewage, the sewage after phosphorus removal flows into the sedimentation tank 7 automatically, a large amount of sludge is precipitated at the bottom of the sedimentation tank 7 in the sedimentation tank 7 to ensure that the sewage reaching the standard is discharged after being disinfected, and the sludge at the bottom of the sedimentation tank 7 flows back to the hydrolysis acidification tank 4 and the other part of sludge flows back to the septic tank 2 under the action of the sludge reflux pump 9, so that the sludge in the septic tank 2 can be cleaned regularly, and when negative pressure is generated on the sludge reflux pipe, the siphon breaker 13 can prevent the sludge in the sludge reflux pipe 12 from flowing back.

Example 2:

on the basis of the embodiment 1, the system further comprises a control system, wherein the control system comprises a sensor, a control module and an execution module. The sensor of the embodiment adopts a liquid level meter with the model of FK-DP. The model is HT46R004 singlechip for control module chooses for use, and elevator pump, sewage backwash pump 8 and sludge backwash pump 9 all belong to the execution module, and the model of elevator pump is chooseed for use: GWS-180-1.5, and the type of the sewage reflux pump 8 is as follows: 50WQ10-10-0.75, and the type of the sludge reflux pump 9 is as follows: QJB-W2.5.

The liquid level meter is fixedly installed in the regulating tank 3, the liquid level meter is electrically connected with the single chip microcomputer, and the lifting pump, the sludge reflux pump 9 and the sewage reflux pump 8 are respectively electrically connected with the single chip microcomputer.

When the liquid level in the equalizing basin 3 reached the liquid level that the level gauge set up in advance, the level gauge gave the singlechip with signal transmission, the singlechip control elevator pump, sewage backwash pump 8 and sludge backwash pump 9 start-up, begin to handle sewage, when the liquid level in the equalizing basin 3 is less than the liquid level that the level gauge set up in advance, the level gauge gives the singlechip with signal transmission, the singlechip control elevator pump, sewage backwash pump 8 and sludge backwash pump 9 close, stop to handle sewage.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a domestic sewage integration processing system, includes equalizing basin, hydrolysis acidification tank, aeration tank and sedimentation tank, is equipped with the elevator pump in the equalizing basin, and the play water end and the hydrolysis acidification tank of elevator pump pass through the pipe connection, are equipped with combined packing, its characterized in that in the aeration tank: the bottom of aeration tank is equipped with the water inlet, and the upper portion of aeration tank is equipped with the delivery port, and hydrolysis-acidification tank communicates with the water inlet of aeration tank, and the delivery port of sedimentation tank and aeration tank communicates, and the longitudinal section of sedimentation tank is the shape of falling trapezoidal, and the side of sedimentation tank is 79-83 with the bottom surface contained angle.

2. The integrated domestic sewage treatment system of claim 1, wherein: the device is characterized by further comprising a control system, wherein the control system comprises a sensor and a control module, the sensor, the control module and the lift pump are electrically connected, the sensor is arranged in the facultative anaerobic adjusting tank, and the sensor transmits a signal to the control module to control the start or stop of the lift pump.

3. The integrated domestic sewage treatment system according to claim 1 or 2, wherein: still include the sewage back flow, be connected through the sewage back flow between aeration tank and the hydrolysis-acidification tank, be equipped with sewage backwash pump on the sewage back flow.

4. The integrated domestic sewage treatment system of claim 3, wherein: the septic tank is communicated with a sewage source end, and the septic tank is connected with the regulating tank through a pipeline.

5. The integrated domestic sewage treatment system of claim 4, wherein: be equipped with the sludge reflux pump in the sedimentation tank, the exit end of sludge reflux pump is connected with the sludge return pipe, and the sludge return pipe is the three-way pipe, and the one end and the septic tank of sludge return pipe pass through the pipe connection, and the other end and the hydrolytic acidification pond of sludge return pipe pass through the pipe connection.

6. The integrated domestic sewage treatment system of claim 5, wherein: a central cylinder is arranged above the sedimentation tank, and a phosphorus removal layer is arranged in the central cylinder.