CN202430095U - System for regenerating and recycling sewage of residential area - Google Patents

Abstract

The utility model provides a sewage regeneration recycling system in a residential area. The system equipment includes: a continuous aeration tank, an intermittent aeration tank, a microfiltration membrane module, an ozone generator, a water production tank, a hydraulic screening machine, an aeration machine, sludge pump, outlet pump, pump-lift decanter, backwash pump, water supply pump, electrical automatic control device, the raw water of the system equipment is the supernatant of the septic tank, and the solid particles and fibers are removed by the hydraulic sieving machine After debris is removed, it enters the continuous aeration tank and the intermittent aeration tank for biological treatment in turn, and then is filtered through the microfiltration membrane module. The produced water after ozone disinfection can be used for flushing toilets, greening and flushing roads, etc. The beneficial effect of the utility model is that it integrates microbial treatment technology, membrane separation technology, disinfection technology and intelligent automatic control technology, has compact structure, reasonable layout, convenient use, maintenance and management, and is suitable for serving residential quarters, villas and expressways. Recycling and reuse of domestic sewage in districts and companies.

Description

A residential sewage recycling system

technical field

The utility model relates to a system device for regenerating and reusing domestic sewage, in particular to a recycling system for regenerating and reusing domestic sewage.

Background technique

With the continuous development of urban economy, people's lives are improving day by day, and the requirements for quality of life and living environment are constantly increasing. Circulating water type ecological public toilets are constantly emerging in residential areas, villa areas, and expressway service areas, and there is an urgent need for a small-scale domestic sewage regeneration and reuse system equipment.

Chinese patent application number 97116662.5 "Continuous intermittent aeration sequenced batch activated sludge wastewater treatment process and system" discloses continuous intermittent aeration sequenced batch activated sludge wastewater treatment process and system involving a sequenced batch activated sludge The sewage treatment process and system of the method include water intake, continuous aeration, intermittent aeration, sedimentation, water discharge and idle processes, that is, firstly, the raw sewage is continuously entered into the continuous aeration reaction tank to mix with the activated sludge in the tank and then continuously aerated After aeration or stirring, it enters the intermittent aeration reaction tank for intermittent aeration and sedimentation. The invention has stable process, small rated air volume of the blower, simple water inlet device, and the state of the intermittent aeration reaction tank can be adjusted arbitrarily, which is beneficial to the removal of refractory organic matter and nitrogen and phosphorus removal, and is especially suitable for small and medium-sized sewage treatment plants. The patent is applied to urban sewage treatment plants, and there are many problems in the process of miniaturization, especially the produced water cannot meet the current water quality standards for reused water. Therefore, people hope to have a kind of equipment that can reach the reuse water quality after domestic sewage is treated, to collect the domestic sewage of residential quarters, villa districts, expressway service areas, circulating water type ecological public toilets, and companies, and reuse them after regeneration. Flushing toilets, greening and flushing roads, etc., realize zero discharge of domestic sewage, and achieve ecological effects of energy saving, environmental protection, and emission reduction.

Contents of the invention

The purpose of this utility model is to overcome the defects of the above-mentioned products, and provide a recycling system for recycling sewage in residential quarters. The water treated by the system can be used for toilet flushing, greening and road flushing.

The technical solution of the utility model is: a recycling system for sewage regeneration in a residential area, including a continuous aeration tank, an intermittent aeration tank, a microfiltration membrane module, a water production tank and an electrical self-control device; the continuous aeration tank is equipped with a second An aerator and a first water outlet pump, the water outlet of the first water outlet pump extends into the intermittent aeration tank through the water inlet pipe of the intermittent aeration tank; Decanter, the water outlet of the pump-lift decanter is connected to the water inlet of the microfiltration membrane module through the outlet pipe of the intermittent aeration tank, and a second electromagnetic valve is installed on the outlet pipe of the intermittent aeration tank; The water pipe is connected to the water production tank, and the water outlet of the water production tank is connected to the water supply pump. The fifth solenoid valve is provided on the outlet pipe of the membrane module; the first aerator, the first water outlet pump, the second aerator, and the pump-lift decanter The water tank, the second solenoid valve, the water supply pump and the fifth solenoid valve are effectively electrically connected with the electric automatic control device.

Further, a sludge pump is provided in the intermittent aeration tank, and the sludge pump is connected to a sludge discharge pipe. The sludge discharge pipe is provided with a first electromagnetic valve and extends into the continuous aeration tank. The sludge pump, the second A solenoid valve is effectively electrically connected with the electric automatic control device.

Further, the continuous aeration tank is equipped with a hydraulic sieve filter, and the raw water is distributed to one side of the sieve cylinder of the hydraulic sieve filter, and the remaining pressure head of the filtered water drives the sieve cylinder to rotate to achieve the effect of primary filtration of raw sewage.

Further, an ozone generator is also included, the outlet of the ozone generator communicates with the water outlet pipe of the membrane module, and the ozone generator is effectively and electrically connected with the electric automatic control device.

Further, it also includes a backwash pump, the water inlet of the backwash pump communicates with the water production pool, and the water outlet communicates with the water outlet of the microfiltration membrane module through the backwash water inlet pipe. The backwash water inlet pipe is provided with a fourth electromagnetic valve, and the backwash The pump and the fourth electromagnetic valve are effectively electrically connected with the electric automatic control device.

Further, it also includes a membrane module backwash outlet pipe, one end of the membrane module backwash outlet pipe communicates with the intermittent aeration tank outlet pipe, and the other end extends into the continuous aeration tank, and the membrane module backwash outlet pipe is provided with a second Three electromagnetic valves, the third electromagnetic valve is effectively electrically connected with the electric automatic control device.

Further, the continuous aeration tank and/or the intermittent aeration tank is provided with a liquid level gauge, and the liquid level gauge is effectively electrically connected with the electric automatic control device.

The advantages and positive effects of the utility model are: the utility model integrates microbial treatment technology, membrane separation and online cleaning technology, disinfection technology and intelligent automatic control technology, and has compact structure, reasonable layout, high degree of automation, and easy maintenance and management. It is convenient and suitable for the regeneration and reuse of domestic sewage in residential quarters, schools, expressway service areas and companies.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the picture:

1. Continuous aeration tank 2. Intermittent aeration tank 3. Microfiltration membrane module

4. Ozone generator 5. Electric automatic control device 6. Water production pool

7. Water supply pump 11. The first aerator 12. The first water outlet pump

13. Liquid level gauge 14. First solenoid valve 15. Hydraulic sieving machine

16. Sewage inlet pipe 17. Hydraulic screen outlet pipe 21. Second aerator

22. Pump-lift decanter 23. Liquid level gauge 24. Inlet pipe of intermittent aeration tank

25. Intermittent aeration tank outlet pipe 26. Second solenoid valve 27. Sludge pump

31. Membrane module outlet pipe 32. The third solenoid valve 33. Membrane module backwash outlet pipe

34. Backwash pump 35. Backwash water inlet pipe 36. Fourth solenoid valve

37. Fifth solenoid valve

Detailed ways

In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given in detail and described in detail in conjunction with the accompanying drawings:

As shown in Figure 1, the utility model is a recycling system for residential sewage recycling, including a continuous aeration tank 1, an intermittent aeration tank 2, a microfiltration membrane module 3, a water production tank 6 and an electrical automatic control device 7.

The continuous aeration tank 1 is provided with a first aerator 11, a first outlet pump 12 and a hydraulic filter 15, and the outlet of the first outlet pump 12 extends into the intermittent aeration tank through the intermittent aeration tank inlet pipe 24. In pool 2;

The intermittent aeration tank 2 is provided with a sludge pump 27, a second aerator 21 and a pump-lift decanter 22, and the outlet of the pump-lift decanter 22 passes through the intermittent aeration tank outlet pipe 25 and microfiltration The membrane module 3 is connected to the water inlet, and the outlet pipe of the intermittent aeration tank is provided with a second solenoid valve 26; the sludge pump 27 is connected to a sludge discharge pipe, which is provided with a first solenoid valve 14 and extends into the In the continuous aeration tank 1;

The microfiltration membrane module 3 is communicated with the produced water 6 tank through the membrane module outlet pipe 31, and meanwhile, the membrane module outlet pipe 31 is also communicated with the outlet of the ozone generator 4, and the membrane module outlet pipe 31 is provided with a fifth solenoid valve 37. The system is also provided with a backwash pump 34 used in conjunction with the microfiltration membrane module 3. The water inlet of the backwash pump 34 is connected to the water production pool 6, and the water outlet is connected to the water outlet of the microfiltration membrane module 3 through the backwash water inlet pipe 35. , the backwash inlet pipe 35 is provided with a fourth electromagnetic valve 36; the microfiltration membrane module 3 is also provided with a membrane module backwash outlet pipe 33, and one end of the membrane module backwash outlet pipe 33 communicates with the intermittent aeration tank outlet pipe 25, The other end protrudes into the continuous aeration tank 1 , and a third electromagnetic valve 32 is provided on the backwash outlet pipe 33 of the membrane module.

The water outlet of the water production tank 6 is connected to the water supply pump 7 . At the same time, liquid level gauges 13 and 23 are provided in the continuous aeration tank 1 and the intermittent aeration tank 2 , and the liquid level gauges 13 and 23 provide water level height signals for the electrical automatic control device 5 . The above equipments are all effectively electrically connected with the electric automatic control device 5 and controlled by the electric automatic control device 5 .

The raw water of this circulation system is the supernatant of the septic tank, after the solid particles and fiber debris are removed by the hydraulic sieve machine 15, the continuous aeration tank 1 and the intermittent aeration tank 2 are biologically treated, the membrane module 3 is filtered and ozone is sterilized , its products are recycled water for toilet flushing, greening and road flushing.

The electric self-control device 5 includes an electric self-control cabinet and an electric circuit for connecting the electric self-control cabinet to the electric equipment. The electrical automatic control device 5 automatically controls the aerator, the liquid level gauge, the electromagnetic valve, the outlet pump, the pump decanter, the sludge pump, the backwash pump and the water supply pump.

The working process of this example: the sewage in the community enters the continuous aeration tank 1 through the sewage inlet pipe 16 and then through the hydraulic sieving machine 15 after being treated through the hydraulic sieving machine outlet pipe 17, and the continuous aeration tank 1 is set as the first place for biological treatment to provide oxygen An aerator 11 and the first water outlet pump 12 for supplying water to the intermittent aeration tank 2. An operation cycle of the continuous aeration tank 1 is divided into five stages: anoxic, primary aeration, facultative oxygen, secondary aeration and drainage , the continuous aeration tank 1 has the functions of degrading organic matter, adjusting water volume and balancing water quality; the first outlet pump 12 of the continuous aeration tank 1 sends the mixture of sewage and activated sludge into the intermittent aeration tank 2, and the intermittent aeration tank 2 The second aerator 21 that provides oxygen for biological treatment and the pump decanter 22 that supplies water to the microfiltration membrane module 3 are set. One operation cycle of the intermittent aeration tank 2 is divided into water intake, aeration, and static sedimentation. The intermittent aeration tank 2 has the functions of removing organic matter and denitrification, and the supernatant in the tank is sent to the The microfiltration membrane module 3 performs filtration, and the sludge in the tank is quantitatively sent to the continuous aeration tank 1 by the sludge pump 27, and the remaining sludge in the tank is quantitatively sent to the septic tank outside the equipment by the sludge pump 27 in about three days The water in the outlet pipe of the intermittent aeration tank is filtered by the microfiltration membrane module 3, and the backwash pump 34 performs online regular cleaning of the microfiltration membrane module 3, and the backwash outlet pipe 33 of the membrane module enters the front continuous aeration In the gas pool 1, the microfiltration membrane module 3 can filter and remove suspended solids, microorganisms and macromolecular substances, so that the effluent water quality of the equipment reaches the design standard; the ozone generator 4 produces ozone gas and the water in the outlet pipe 31 of the microfiltration membrane module After mixing, they enter the water production pool 6 together, and further contact and mix in the water production pool 6 to meet the requirements of the sanitary index of GB/T18920-2002 in the "Urban Sewage Recycling and Utilization of Urban Miscellaneous Water Quality"; finally, the water supply pump 7 sends the recycled water to To water points such as flushing toilets, greening, and road flushing; the electrical automatic control device 5 automatically controls the aerator, liquid level gauge, solenoid valve, water outlet pump, pump-lift decanter, sludge pump, backwash pump, and water supply pump. Control to achieve the operation effect of domestic sewage recycling equipment in accordance with the process design requirements.

An embodiment of the present utility model has been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (7)

1. a community wastewater regeneration recycle system is characterized in that: comprise continuous aeration pond (1), intermittent aeration pond (2), micro-filtration membrane module (3), produce pond (6) and electric autocontrol device (5);

Be provided with first aerator (11) and first in the said continuous aeration pond (1) and go out water pump (12), said first go out water pump (12) water outlet stretch in the intermittent aeration pond (2) through intermittent aeration pond water inlet pipe (24);

Being provided with second aerator (21) and pump in the said intermittent aeration pond (2) puies forward formula and strains hydrophone (22); Pump is put forward formula and is strained hydrophone (22) water outlet and be connected with micro-filtration membrane module (3) water-in through intermittent aeration pond rising pipe (25), and intermittent aeration pond rising pipe (25) is provided with second SV (26);

Micro-filtration membrane module (3) is communicated to through membrane module rising pipe (31) and produces in the pond (6), produces pond (6) water outlet and connects working shaft (7), and said membrane module rising pipe (31) is provided with the 5th SV (37);

First aerator (11), first goes out water pump (12), second aerator (21), pump and puies forward formula and strain hydrophone (22), second SV (26), working shaft (7), the 5th SV (37) and effectively be electrically connected with electric autocontrol device (5).

2. the recycle system according to claim 1; It is characterized in that: be provided with sludge pump (27) in the said intermittent aeration pond (2); Said sludge pump (27) connects a shore pipe; This shore pipe is provided with first SV (14) and extend in the continuous aeration pond (1), and sludge pump (27), first SV (14) effectively are electrically connected with electric autocontrol device (5).

3. the recycle system according to claim 1 and 2 is characterized in that: be provided with hydraulic screen filter (15) in the said continuous aeration pond (1), hydraulic screen filter (15) effectively is electrically connected with electric autocontrol device (5).

4. the recycle system according to claim 3 is characterized in that: also comprise an ozonizer (4), the outlet of this ozonizer (4) is communicated with membrane module rising pipe (31).

5. the recycle system according to claim 4; It is characterized in that: also comprise a backwashing pump (34); This backwashing pump (34) water-in is communicated with product pond (6); Water outlet is communicated with micro-filtration membrane module (3) water outlet through backwash water inlet pipe (35), and backwash water inlet pipe (35) is provided with the 4th SV (36), and backwashing pump (34), the 4th SV (36) effectively are electrically connected with electric autocontrol device (5).

6. the recycle system according to claim 5; It is characterized in that: also comprise membrane module backwash rising pipe (33); Said membrane module backwash rising pipe (33) one ends are communicated with intermittent aeration pond rising pipe (25); The other end extend in the continuous aeration pond (1), and membrane module backwash rising pipe (33) is provided with the 3rd SV (32), and the 3rd SV (32) effectively is electrically connected with electric autocontrol device (5).

7. the recycle system according to claim 6 is characterized in that: be provided with liquidometer (13,23) in said continuous aeration pond (1) and/or intermittent aeration pond (2), liquidometer (13,23) effectively is electrically connected with electric autocontrol device (5).

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