CN105541029A - Unpowered backflow integrated reclaimed water reuse device - Google Patents

Abstract

The invention discloses a non-powered reflux integrated reclaimed water reuse device, which is composed of a regulating tank, an anaerobic reaction zone, an aerobic reaction zone and an equipment installation zone; Gas main pipe, liquid level gauge and lift pump; filler, hydraulic baffle and return pipeline are set inside the anaerobic reaction zone, the aerobic reaction zone is divided into packing reaction zone and membrane separation reaction zone, MBBR packing is set in the packing reaction zone, membrane reaction zone There is an MBR membrane reactor in the area; an air lift sludge device and a double aeration system are also installed in the aerobic reaction area, and the equipment installation area includes an MBR suction pump, an aeration fan, and a cleaning and disinfection device. The present invention adopts the combination of large specific surface area filler and membrane separation process, so that it has high volume load, small equipment footprint, low energy consumption, simple operation, high self-control performance, and can efficiently remove BOD5, COD, NH ₃ -N , SS, suitable for hospitals, hotels, urban residential areas and other occasions where the land is tight.

Description

An integrated reclaimed water reuse device without power backflow

technical field

The invention relates to sewage treatment technology, in particular to an integrated reclaimed water recycling device without power backflow.

Background technique

The term "reclaimed water" is relative to upper water (water supply) and lower water (drainage). The feature of reclaimed water reuse technology is to use various physical, chemical, biological and other means to treat industrial wastewater at different depths to achieve the water quality required by the process, and then reuse it in the process to save water resources. The purpose of reducing environmental pollution.

Due to the prominent problems of traditional centralized reclaimed water reuse projects, such as difficulty in sewage collection, large investment in pipeline networks, large floor area, and high requirements for operation and management, decentralized sewage treatment and reuse integration technology has become a beneficial method of centralized treatment. necessary supplementary measures. Some of the existing integrated reclaimed water reuse devices at home and abroad only use a single aerobic biochemical treatment process, and the treatment effect is not ideal; some use a single aeration method, and the energy consumption is relatively high; Larger area.

In view of the above situation, it is necessary to combine the characteristics of reclaimed water reuse in my country and the shortcomings of existing processes to develop an integrated reclaimed water reuse device without power backflow.

Contents of the invention

The purpose of the present invention is to provide a kind of removal of BOD5, COD, NH ₃ -N, SS, less investment in equipment, low operating cost, small footprint and simple operation of unpowered backflow integrated reclaimed water reuse device, to solve the above-mentioned Questions raised in the background art.

To achieve the above object, the present invention provides the following technical solutions:

An integrated reclaimed water reuse device without power reflux, which is composed of a regulating tank, an anaerobic reaction zone, an aerobic reaction zone and an equipment installation zone; the regulating tank is equipped with a grid basket, a stirring device, an aeration supervisor of the regulating tank, a liquid Level gauge and lift pump; a grill basket is set at the water inlet of the sewage, and the level gauge and lift pump are linked to control the liquid level of the regulating tank; the lift pump is connected to one end of the water inlet pipe, and the other end of the water inlet pipe is located at the drain In the oxygen reaction zone, fillers, hydraulic baffles and return lines are set inside the anaerobic reaction zone. One end of the return line is located in the regulating tank, and the other end is located in the aerobic reaction zone; the aerobic reaction zone is divided into a filler reaction zone and a membrane separation zone. Reaction zone, filler The reaction zone is equipped with MBBR filler, and the membrane reaction zone is equipped with an MBR membrane reactor; the aerobic reaction zone is also equipped with an air lift sludge device and a double aeration system. The double aeration system includes an annular aeration tube and a well Oxygen aeration pipe, aerobic aeration pipe is located in the packing reaction area, and the MBR membrane reactor is installed in the ring frame of the annular aeration pipe, and the MBR membrane reactor is also connected to the MBR suction pump in the equipment installation area through the pipeline, and the equipment installation The area also includes an aeration fan and a cleaning and disinfection device. The aeration fan is connected to the ring-shaped aeration pipe, the aerobic aeration pipe, and the aeration supervisor of the regulating tank in turn through the main aeration pipe.

As a further solution of the present invention: the upper part of the grill basket is connected with a steel wire to make it rise and fall freely.

As a further solution of the present invention: a perforated aeration pipe is installed on the aeration main pipe of the regulating tank.

As a further solution of the present invention: the filler is made of synthetic plastic.

As a further solution of the present invention: an aerator is installed on the aerobic aeration pipe.

Compared with prior art, the beneficial effect of the present invention is:

The combination of large specific surface area filler and membrane separation technology makes the reclaimed water reuse device have a higher volume load, making the equipment occupy a smaller area than traditional reclaimed water recycle equipment, and can efficiently remove BOD5, COD, NH ₃ - N, SS, suitable for occasions (areas) where land is scarce, such as hospitals, hotels, and urban residential areas. The invention reduces the number of equipment and solves the problems of high energy consumption and complicated operation of the traditional integrated reclaimed water reuse device. The device of the invention has the characteristics of low energy consumption, simple operation and high self-control performance. The integrated skid-mounted design enables the present invention to have the advantages of convenient installation and flexible collocation according to the site, and can meet the installation requirements of various sites.

Description of drawings

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

Fig. 2 is a schematic top view of the device of the present invention;

In the figure: 1-water inlet, 2-grid basket, 3-adjusting tank aeration supervisor, 4-lift pump, 5-water inlet pipe, 6-perforated aeration pipe, 7-return pipeline, 8-MBBR filler, 9 -ring aeration pipe, 10-aerobic aeration pipe, 11-aerator, 12-aeration main pipe, 13-MBR membrane reactor, 14-MBR suction pump, 15-aeration fan, 16-cleaning and disinfection device.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

Please refer to Fig. 1-2, in the embodiment of the present invention, a non-powered reflux integrated reclaimed water reuse device includes a regulating tank, an anaerobic reaction area, an aerobic reaction area and an equipment installation area. A grill basket 2, a stirring device, an aeration supervisor 3, a liquid level gauge and a lift pump 4 are installed in the regulating tank. A grill basket 2 is set at the water inlet 1 of the sewage, and the upper part of the grill basket 2 is connected with a steel wire to make it rise and fall freely. A plurality of perforated aeration tubes 6 are installed in the rectangular frame of the aeration main pipe 3 of the regulating tank, and the liquid level gauge Linked with two lift pumps 4 to control the liquid level within the specified range. The lifting pump 4 is connected to one end of the water inlet pipe 5, and the other end of the water inlet pipe 5 is located in the anaerobic reaction zone. Inside the anaerobic reaction zone, a filler with a large specific surface area made of synthetic plastic, a hydraulic baffle and a return line 7 are arranged. One end of the return line 7 is located in the regulating tank, and the other end is located in the aerobic reaction zone. The aerobic reaction area is divided into a packing reaction area and a membrane separation reaction area, the packing reaction area is equipped with MBBR filler 8 as a biological carrier, and the membrane reaction area is an MBR membrane reactor 13 . The aerobic reaction zone is also equipped with an air lift sludge device and a double aeration system. The double aeration system includes an annular aeration tube 9 and an aerobic aeration tube 10. The aerobic aeration tube 10 is located in the packing reaction zone. A plurality of aerators 11 are installed in the rectangular frame on the oxygen aeration pipe 10, and an MBR membrane reactor 13 is installed in the annular frame of the annular aeration pipe 9, and the MBR membrane reactor 13 is also connected to two in the equipment installation area by pipelines. MBR suction pump 14, an aeration fan 15 and a cleaning and disinfection device 16 are also included in the equipment installation area, and the two aeration fans 15 are sequentially connected to the annular aeration pipe 9, the aerobic aeration pipe 10, and the regulating tank through the main aeration pipe 12 Aeration supervisor 3.

As shown in Figure 1, the integrated process steps of the unpowered reflux integrated reclaimed water reuse device are as follows:

(1) A grill basket 2 is installed at the sewage inlet, and the upper connecting steel wire can lift the grill basket 2 freely, and the mouth of the grill basket 2 is automatically matched with the water inlet, and the grill basket 2 can effectively remove impurities and some suspended matter in the water; for Homogeneous quality and even quantity ensure the continuous operation of the system and set up a regulating pool. A stirring device is installed in the regulating tank to prevent sludge sedimentation and oxygenation. The liquid level is controlled within the specified range by using the liquid level gauge in linkage with the lift pump 4 .

(2) When the sewage treated in (1) enters the anaerobic reaction zone, a filler made of synthetic plastic with a large specific surface area and a large-aperture aeration are installed to prevent sludge from settling. A hydraulic baffle is set inside the anaerobic reaction zone to make maximum use of the longest hydraulic retention time in the limited space.

(3) The sewage after (2) treatment flows into the aerobic reaction zone, and the aerobic reaction zone is divided into a filler reaction zone and a membrane separation reaction zone, and the filler reaction zone is provided with a large specific surface area MBBR filler 8 as a biological carrier, and the filler has Good hydrophilicity, high biological activity, fast film formation, long service life and other advantages. The membrane reaction zone adopts MBR membrane reactor 13 with strong anti-pollution, easy replacement, easy cleaning and low cost. A double aeration system is set up in the aerobic reaction area, which is adjusted according to the operating load in different areas. The water inlet and outlet of the non-powered backflow channel are set at the farthest end to obtain the best hydraulic retention time. The air-lifting sludge device is installed in the aerobic reaction zone to reduce energy consumption and equipment investment.

(4) Equipment installation area, install aeration fan 15, cleaning and disinfection device 16, MBR suction pump 14 and other equipment, with ventilation, rainproof and other functions.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. a unpowered return integrated Treated sewage reusing device, is characterized in that, is made up of equalizing tank, anaerobic reaction district, aerobic reactor zone and equipment installing zone, grid basket (2), whipping appts, equalizing tank aeration supervisor (3), liquidometer and lift pump (4) is provided with in equalizing tank, arrange grid basket (2) at water-in (1) place of sewage, liquidometer and lift pump (4) link and are used for the liquid level face in regulating and controlling pond, lift pump (4) is connected with one end of water inlet pipe (5), and the other end of water inlet pipe (5) is arranged in anaerobic reaction district, inside, anaerobic reaction district arranges weighting material, waterpower traverse baffle and reflux pipeline (7), and one end of reflux pipeline (7) is arranged in equalizing tank, and the other end is positioned at aerobic reactor zone, aerobic reaction divides into filler reaction zone and film separation reaction district, and filler reaction zone arranges MBBR filler (8), is provided with MBR membrane reactor (13) in film reaction district, air lift device of sludge and two aerating system are also set in aerobic reactor zone, two aerating system comprises annular aeration tube (9) and aerobic aeration pipe (10), aerobic aeration pipe (10) is arranged in filler reaction zone, in the ring frame of annular aeration tube (9), MBR membrane reactor (13) is installed, MBR membrane reactor (13) is also by the MBR suction pump (14) in pipeline connecting device installing zone, Aeration fan (15) and cleaning sterilizing device (16) is also comprised in equipment installing zone, Aeration fan (15) connects annular aeration tube (9) successively by aeration house steward (12), aerobic aeration pipe (10), equalizing tank aeration supervisor (3).

2. unpowered return integrated Treated sewage reusing device according to claim 1, it is characterized in that, grid basket (2) top is connected with the steel wire making it freely rise and fall.

3. unpowered return integrated Treated sewage reusing device according to claim 1, is characterized in that, equalizing tank aeration supervisor (3) installs boring aeration pipe (6).

4. unpowered return integrated Treated sewage reusing device according to claim 1, is characterized in that, the material of weighting material is synthetic plastics.

5. unpowered return integrated Treated sewage reusing device according to claim 1, is characterized in that, aerobic aeration pipe (10) is installed aerator (11).