CN111039405A - Integrated treatment device for fluctuating sewage in service area - Google Patents
Integrated treatment device for fluctuating sewage in service area Download PDFInfo
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Abstract
The invention discloses an integrated treatment device for fluctuating sewage in a service area, which belongs to the field of environmental protection equipment, can realize stepped variable water level treatment according to the change of water inflow, solves the problem that the traditional integrated domestic sewage treatment device is difficult to deal with the obvious fluctuation of water amount, and comprises a device body, an anaerobic zone, an anoxic zone, an annular aerobic zone, a settling zone and a sludge concentration zone; the anaerobic zone, the anoxic zone and the sludge concentration zone are positioned in the middle of the device body, the annular aerobic zone is positioned around the anaerobic zone, the anoxic zone and the sludge concentration zone, the anaerobic zone is communicated with a water inlet pipe, the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the annular aerobic zone, the annular aerobic zone is connected with the sedimentation zone through a water distribution weir, and the sedimentation zone is communicated with a water outlet pipe; the sludge in the settling zone is lifted to a sludge concentration zone or returned to an anaerobic zone through a sludge return system; the bottom of the annular aerobic zone is provided with a filler structure, and the bottom of the device body is provided with an aeration system. The invention is suitable for the integrated treatment of the fluctuating sewage in the service area.
Description
Technical Field
The invention relates to a sewage treatment device, in particular to an integrated treatment device for fluctuating sewage in a service area.
Background
In recent years, with the successive promotion, updating and implementation of relevant standards, product technical requirements and operation management rules for sewage treatment in expressway service areas in China, the service areas are basically popularized and equipped with integrated domestic sewage treatment devices. But the expressway travel in China has the characteristic of typical tide type, and people are few at ordinary times, and the festival and holiday are suddenly increased. The problem that the existing sewage treatment facilities in the expressway service area are often unstable in water fluctuation, short in service life, unstable in operation and the like is solved, waste and failure of equipment are caused, and hidden dangers are brought to good ecological environment around the service area.
At present, in order to deal with the problem of sewage quantity fluctuation of a service area, part of large and medium service areas mainly adopt the following steps: firstly, excessive input of integrated equipment in a one-use and multi-standby mode is adopted; secondly, a front-mounted water quantity adjusting tank is adopted; the first method has the problems of high one-time investment, poor management in busy period and the like, and has high equipment abandonment rate and maintenance cost; the second method occupies a large area and goes against the original intention of the traffic department to popularize the integrated device in the service area and integrate the domestic sewage treatment system in the service area. Therefore, an integrated device capable of tolerating water fluctuation is urgently needed to be designed to solve the problem of water fluctuation caused by 'tidal' travel on the expressway in China.
Based on practical experience and professional knowledge which are abundant for years in the engineering application of the products, the designer actively carries out research and innovation by matching with the application of the theory, and aims to create an integrated treatment device for the fluctuating sewage in the service area, so that the integrated treatment device has higher practicability.
Disclosure of Invention
The invention aims to provide an integrated treatment device for fluctuating sewage in a service area, which can realize stepped variable water level treatment according to the change of water inflow and solve the problem that the traditional integrated domestic sewage treatment device is difficult to deal with the obvious fluctuation of water amount.
The technical purpose of the invention is realized by the following technical scheme:
an integrated treatment device for fluctuating sewage in a service area comprises a device body, an anaerobic area, an anoxic area, an annular aerobic area, a settling area and a sludge concentration area;
the anaerobic zone, the anoxic zone and the sludge concentration zone are positioned in the middle of the device body, the annular aerobic zone is positioned around the anaerobic zone, the anoxic zone and the sludge concentration zone, and the sedimentation zone is positioned on one side of the device body far away from the anoxic zone;
the anaerobic zone is communicated with a water inlet pipe, the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the annular aerobic zone, and the annular aerobic zone is connected with the sedimentation zone through a water distribution weir;
the sedimentation zone is an inclined tube sedimentation zone, the sedimentation zone is divided into an upper part and a lower part, and the two sedimentation zones are respectively communicated with the water outlet pipe;
the sludge in the settling zone is lifted to the sludge concentration zone through a sludge backflow system or flows back to the anaerobic zone;
the bottom of the annular aerobic zone is provided with a filler structure, and the device body is provided with an aeration system at the bottom of the filler structure;
the upper end surface of the filler structure divides the annular aerobic zone into a low water level operation mode and a high water level operation mode;
when the water inflow is less than or equal to the biofilm treatment capacity of the filler structure, the operation mode is a low water level operation mode, and sewage is treated through the biological contact oxidation effect of the filler structure;
when the water inflow is larger than the biofilm treatment capacity of the filler structure, the high water level operation mode is adopted, the activated sludge flows back to the anaerobic zone, and the microorganism treatment under the action of the suspended activated sludge is combined with the biological contact oxidation action of the filler structure to treat the sewage.
Further, mud return-flow system includes self priming pump and goes out the mud pipeline, the heavy mud of sedimentation zone promotes through self priming pump and play mud pipeline to the sludge concentration district, it has the pipeline bypass to go out mud pipeline intercommunication, the pipeline bypass with anaerobic zone intercommunication, be equipped with liquid level control valve on the pipeline bypass.
Further, aeration systems includes air-blower, air hose and micropore aerator, the air-blower install in on the device body, the air-blower with the micropore aerator passes through the air hose intercommunication.
Further, the height of the filler structure is 0.3-0.45 times the total height of the device body.
Further, be equipped with first steel sheet between the anaerobic zone with the anoxic zone and cut off, be equipped with double first water pipe on the first steel sheet cuts off, the one end intercommunication of first water pipe the anaerobic zone, the other end intercommunication the anoxic zone, two rows the interval between the first water pipe is 0.25 times the total height of device body.
Furthermore, the anoxic zone with be equipped with the second steel sheet between the annular aerobic zone and cut off, be equipped with double second water pipe on the second steel sheet cuts off, the one end intercommunication of second water pipe the anoxic zone, the other end intercommunication annular aerobic zone, two rows the interval between the second water pipe is 0.25 times the total height of device body.
Further, the sludge in the sludge concentration area is discharged through a sludge pipe, and a sludge discharge port communicated with the sludge pipe is formed in the bottom of the device body.
Furthermore, the elevation of the bottom of the water distribution weir at the lower part is 0.4-0.5 times of the total height of the device body, and the elevation of the bottom of the water distribution weir at the upper part is 0.8-0.9 times of the total height of the device body.
Furthermore, the elevation of the upper layer water outlet is 0.7-0.8 times of the total height of the device, and the elevation of the lower layer water outlet is 0.3-0.4 times of the total height of the device.
The invention has the following beneficial effects:
according to the peak-valley water quantity of the service area, an integrated treatment device with a corresponding scale is arranged, and sewage at the upstream of the service area automatically flows through a water inlet pipe to enter an anaerobic area for anaerobic treatment; then flows to the anoxic zone for anoxic treatment, then flows to the leftmost end of the annular aerobic zone, is discharged into the right end from the left end along two channels for aerobic treatment, and the right end of the annular aerobic zone is matched with the upper part and the lower partThe water weir enters the precipitation zone to carry out tail water precipitation, and finally, the water is discharged through the water outlet pipes at the upper part and the lower part to realize the standard A2And the O treatment process flow ensures the treatment effect and the effluent quality to reach the standard.
The device body is divided into a low water level operation mode and a high water level operation mode by the upper end surface of the filler structure, when the water inflow is less than or equal to the biofilm treatment capacity of the filler structure, the device body is in the low water level operation mode, sewage is treated through biological contact oxidation of the filler structure, and the mode is long in sludge age, high in sludge load and free of active sludge backflow;
when the water inflow is greater than the biofilm treatment capacity of the filler structure, the high water level operation mode is adopted, activated sludge flows back to the anaerobic zone, the microorganism treatment under the action of suspended activated sludge is combined with the biological contact oxidation action of the filler structure to treat sewage, the mode has high sewage tolerance and high treatment efficiency, and the mixed effluent can still meet the corresponding discharge standard;
can realize the ladder change water level according to the inflow change and handle in annular good oxygen district, two kinds of treatment modes can switch according to the water yield, have solved traditional integration domestic sewage treatment plant and have been difficult to deal with the obvious undulant problem of water yield.
Drawings
FIG. 1 is a plan view of the whole apparatus for embodying the integrated treatment apparatus in example 1;
FIG. 2 is a sectional view of the whole integrated treating apparatus in example 1;
FIG. 3 is a schematic structural view for embodying the filler structure in example 2;
fig. 4 is an enlarged view at a in fig. 3.
In the figure, 1, an apparatus body; 11. a sludge discharge port; 2. an anaerobic zone; 21. a water inlet pipe; 22. a first steel plate partition; 221. a first water passing pipe; 3. an anoxic zone; 31. a second steel plate partition; 311. a second water passing pipe; 4. an annular aerobic zone; 5. a settling zone; 51. a water distribution weir; 52. a water outlet pipe; 6. a sludge concentration zone; 61. a sludge pipe; 7. a filler structure; 81. a self-priming pump; 82. a sludge outlet pipeline; 821. a pipeline bypass; 91. a blower; 92. an air tube; 93. a microporous aerator; 101. a suspended filler zone; 1011. biological carrier suspension ball filler; 102. a combined packing region; 1021. combining fillers; 10211. a fiber bundle; 10212. a plastic ring sheet; 10213. installing a pipe; 103. a three-dimensional elastomeric filler region; 1031. a three-dimensional elastic filler; 104. rotating the disc; 1041. a first power section; 105. a hole pressing plate; 1051. a nut; 1052. a screw rod; 1053. a second power section; 106. an elastic cord; 107. a first transition tank; 108. and a second transition pool.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1: an integrated treatment device for fluctuating sewage in a service area, as shown in fig. 1 and 2, comprises a device body 1, an anaerobic zone 2, an anoxic zone 3, an annular aerobic zone 4, a settling zone 5 and a sludge concentration zone 6;
the anaerobic zone 2, the anoxic zone 3 and the sludge concentration zone 6 are positioned in the middle of the device body 1, the annular aerobic zone 4 is positioned around the anaerobic zone 2, the anoxic zone 3 and the sludge concentration zone 6, and the sedimentation zone 5 is positioned on the right side of the device body 1;
the anaerobic zone 2 is communicated with a water inlet pipe 21, the anaerobic zone 2 is communicated with an anoxic zone 3, the anoxic zone 3 is communicated with an annular aerobic zone 4, and the annular aerobic zone 4 is connected with a precipitation zone 5 through a water distribution weir 51;
the sedimentation zone 5 is an inclined tube sedimentation, the sedimentation zone 5 is divided into an upper part and a lower part, and the two sedimentation zones 5 are respectively communicated with a water outlet pipe 52;
the sludge in the settling zone 5 is lifted to the sludge concentration zone 6 through a sludge return system or returned to the anaerobic zone 2;
the bottom of the annular aerobic zone 4 is provided with a filler structure 7, and the bottom of the filler structure 7 of the device body 1 is provided with an aeration system;
wherein, the upper end surface of the filler structure 7 divides the annular aerobic zone 4 into a low water level operation mode and a high water level operation mode;
when the water inflow is less than or equal to the biofilm treatment capacity of the filler structure 7, the sewage is treated by the biological contact oxidation effect of the filler structure 7 in a low water level operation mode;
when the water inflow is larger than the biofilm treatment capacity of the filler structure 7, the high water level operation mode is adopted, the activated sludge flows back to the anaerobic zone 2, and the microorganism treatment under the action of the suspended activated sludge is combined with the biological contact oxidation action of the filler structure 7 to treat the sewage.
According to the peak-valley water quantity of the service area, an integrated treatment device with a corresponding scale is equipped, and sewage at the upstream of the service area automatically flows into the anaerobic area 2 through the water inlet pipe 21 to carry out anaerobic treatment; then flows to the anoxic zone 3 for anoxic treatment, then flows to the leftmost end of the annular aerobic zone 4, is discharged into the right end from the left end along two channels for aerobic treatment, the right end of the annular aerobic zone 4 enters the settling zone 5 through the upper water distribution weir 51 and the lower water distribution weir 51 for tail water settling, and finally, water is discharged through the upper water outlet pipe 52 and the lower water outlet pipe 52, so that the standard A2O treatment process flow is realized, and the treatment effect and the effluent quality are guaranteed to reach the standard.
When the sewage treatment system is in a low water level operation mode, sewage is treated through the biological contact oxidation effect of the filler structure 7, and the mode is long in sludge age, high in sludge load and free of active sludge backflow;
when the sewage treatment system is in a high water level operation mode, activated sludge flows back to the anaerobic zone 2, the microorganism treatment under the action of suspended activated sludge is combined with the biological contact oxidation action of the filler structure 7 to treat sewage, the mode has high sewage tolerance and high treatment efficiency, and the mixed effluent can still meet the corresponding discharge standard;
can realize the ladder change water level according to the inflow change and handle in annular aerobic zone 4, two kinds of treatment modes can switch according to the water yield, have solved traditional integration domestic sewage treatment plant and have been difficult to deal with the obvious undulant problem of water yield.
As shown in fig. 2, sludge reflux system includes self priming pump 81 and play mud pipeline 82, and the heavy mud of settling zone 5 promotes to sludge concentration district 6 through self priming pump 81 and play mud pipeline 82, and play mud pipeline 82 intercommunication has pipeline bypass 821, and pipeline bypass 821 and anaerobic zone 2 intercommunication are equipped with the liquid level control valve on the pipeline bypass 821, and the liquid level control valve can realize the backward flow according to the liquid level is automatic in the anaerobic zone 2.
As shown in fig. 2, the aeration system includes a blower 91, an air pipe 92 and a microporous aerator 93, the blower 91 is mounted on the apparatus body 1, the blower 91 is communicated with the microporous aerator 93 through the air pipe 92, the blower 91 is used for supplying air, and the air aerates the annular aerobic zone 4 through the air pipe 92 and the microporous aerator 93.
As shown in fig. 2, the packing structure 7 includes a vertical elastic packing, and the height of the packing structure 7 is 0.3 to 0.45 times the total height of the apparatus body 1. The bottom of the annular aerobic tank is positioned in the area of the filler structure 7 and is the action range of biological contact oxidation. The stereoelastic filler used in this example is commercially available.
As shown in fig. 2, a first steel plate partition 22 is arranged between the anaerobic zone 2 and the anoxic zone 3, two rows of high and low first water passing pipes 221 are arranged on the first steel plate partition 22, each row of first water passing pipes 221 is composed of three de110 PVC plastic pipes, one end of each first water passing pipe 221 is communicated with the anaerobic zone 2, the other end of each first water passing pipe is communicated with the anoxic zone 3, the distance between the two rows of first water passing pipes 221 is 0.25 times of the total height of the device body 1, and the high-low classification of the effluent of the anaerobic zone 2 and the anaerobic treatment of sewage are realized.
As shown in fig. 2, a second steel plate partition 31 is arranged between the anoxic zone 3 and the annular aerobic zone 4, two rows of high-low second water passing pipes 311 are arranged on the second steel plate partition 31, each row of second water passing pipes 311 is composed of three de110 PVC plastic pipes, one end of each second water passing pipe 311 is communicated with the anoxic zone 3, the other end of each second water passing pipe is communicated with the annular aerobic zone 4, the distance between the two rows of second water passing pipes 311 is 0.25 times the total height of the device body 1, and the high-low classification of water outlet of the anoxic zone 3 and the anoxic treatment of sewage are realized.
As shown in FIG. 2, the sludge in the sludge concentration zone 6 is discharged through a sludge pipe 61, a sludge discharge port 11 communicating with the sludge pipe 61 is provided at the bottom of the apparatus body 1, and the sludge discharge port 11 can periodically and intensively dispose the sludge in the sludge concentration zone 6.
As shown in figure 2, the elevation of the bottom of the water distribution weir 51 at the lower part is 0.4-0.5 times of the total height of the device body 1, the elevation of the bottom of the water distribution weir 51 at the upper part is 0.8-0.9 times of the total height of the device body 1, so that the high-low classification of the effluent of the annular aerobic zone 4 and the aerobic treatment of sewage are realized, and the upper part of the annular aerobic zone 4 has the action range of suspended activated sludge.
As shown in figure 2, the elevation of the upper layer water outlet pipe 52 is 0.7-0.8 times of the total height of the device, and the elevation of the lower layer water outlet pipe 52 is 0.3-0.4 times of the total height of the device, so that the high-low classification of the water outlet of the device body 1 is realized.
The specific implementation process comprises the following steps:
s1: sewage in the service area automatically flows to the anaerobic area 2 through the water inlet pipe 21, and the anaerobic area 2 carries out anaerobic treatment on the sewage;
s2: sewage flows from the anaerobic zone 2 to the anoxic zone 3, and the anoxic zone 3 performs anoxic treatment on the sewage;
s3: the sewage flows from the anoxic zone 3 to the left end of the annular aerobic zone 4 and then flows from the left end to the right end of the annular aerobic zone 4;
s4: when the water inflow is less than or equal to the biofilm treatment capacity of the filler structure 7, the operation mode is a low water level operation mode, and sewage is treated through the biological contact oxidation effect of the filler structure 7; when the water inflow is larger than the biofilm treatment capacity of the filler structure 7, the operation mode is a high water level operation mode, the activated sludge flows back to the anaerobic zone 2, and the microorganism treatment under the action of the suspended activated sludge is combined with the biological contact oxidation action of the filler structure 7 to treat the sewage;
s5: the sewage flows from the annular aerobic zone 4 to the sedimentation zone 5 through the water distribution weir 51, and finally goes out through the water outlet pipe 52.
Example 2: an integrated treatment device for fluctuating sewage in a service area is different from that in embodiment 1 in that a filler structure comprises a suspended filler area 101, a combined filler area 102 and a three-dimensional elastic filler area 103 which are communicated with each other, and the suspended filler area 101 comprises a plurality of biological carrier suspended ball fillers 1011; the combined packing area 102 comprises a plurality of rows of combined packing 1021 arranged vertically in parallel, the combined packing 1021 comprises a fiber bundle 10211 and a plastic ring piece 10212, the fiber bundle 10211 is bound on the plastic ring piece 10212 along the circumferential direction of the plastic ring piece 10212, and the combined packing 1021 is sleeved on the mounting pipe 10213 through a through hole on the plastic ring piece 10212; the three-dimensional elastic filler area 103 comprises a plurality of three-dimensional elastic fillers 1031 which are vertically arranged in parallel, wherein the suspended filler area 101 is used for pretreating sewage, the combined filler area 102 is used for treating the sewage for the first time, and the three-dimensional elastic filler area 103 is used for treating the sewage for the second time.
As shown in fig. 3, although the suspended filler region 101 can adsorb impurities in the sewage to a certain extent, the impurities in the sewage are liable to cause the filler fiber bundles 10211 to be adhered together, which is not beneficial to the growth of the biofilm, a filler reverse cleaning structure is provided in the combined filler region 102 and the three-dimensional elastic filler region 103, the filler reverse cleaning structure includes a rotating disk 104 and a hole pressing plate 105, the lower end of the installation tube 10213 is fixedly connected to the rotating disk 104, a plurality of plastic ring sheets 10212 are sleeved on the installation tube 10213, all the plastic ring sheets 10212 on the installation tube 10213 are connected in series through an elastic rope 106, one end of the elastic rope 106 is fixedly connected to the bottom of the installation tube 10213, the other end of the elastic rope is fixedly connected to the hole pressing plate 105, and a through hole for the installation tube 10213 to pass through is provided on the hole pressing plate 105; the first power portion 1041 is installed at the bottom of the rotating disc 104, and the first power portion 1041 is a motor and a speed reducer and is used for driving the rotating disc 104 to rotate, and the connection here belongs to the prior art, and only the rotating disc 104 needs to rotate. The two ends of the hole pressing plate 105 are provided with nuts 1051, the screw threads in the nuts 1051 are connected with a screw rod 1052, the lower end of the screw rod 1052 is rotatably connected with the combined packing area 102, the screw rod 1052 is connected with a second power part 1053 for driving the screw rod 1052 to rotate, the second power part 1053 comprises a motor, a speed reducer, a worm and a worm wheel, the worm wheel is coaxially and threadedly connected with the screw rod 1052, the worm wheel is meshed with the worm, the motor transmits power to the worm through the speed reducer, the connection here belongs to the prior art, and only the rotation of the screw rod 1052 is needed.
And (3) a filler backwashing process: when the combined packing 1021 is backwashed, the rotary disk 104 rotates under the action of power, meanwhile, the hole pressing plate 105 vertically reciprocates linearly up and down, the rotary disk 104 rotates to perform a centrifugal action on impurities attached to the fiber bundle 10211, the hole pressing plate 105 moves from top to bottom to enable the elastic rope 106 to be loosened from tight, the hole pressing plate 105 moves from bottom to top to enable the elastic rope 106 to be tightened from loose, and the combined packing 1021 generates an elastic force under the centrifugal action to enable the combined packing 1021 to shake to a certain degree, further, the impurities attached to the fiber bundle 10211 are removed, the impurities in sewage are not easily attached to the fiber bundle 10211, the packing fibers are not easily adhered to form a group, the growth of a biological membrane is facilitated, and the service life of the combined packing 1021 is prolonged.
The bio-carrier suspension sphere filler 1011 and the three-dimensional elastic filler 1031 used in this example are both commercially available.
The structure of the back-cleaning filler in the three-dimensional elastic filler region 103 is the same as that of the combined filler region 102, and can be installed as required, which is not described herein again.
The upper top surfaces of the suspended filler area 101, the combined filler area 102 and the three-dimensional elastic filler area 103 are all pore plates, the side surfaces of the suspended filler area 101, the combined filler area 102 and the three-dimensional elastic filler area 103 are separated by steel plates, a first transition pool 107 is arranged between the suspended filler area 101 and the combined filler area 102, two walls of the first transition pool 107 are communicated with the suspended filler area 101 and the combined filler area 102 through water pipes, a second transition pool 108 is arranged between the combined filler area 102 and the three-dimensional elastic filler area 103, and two walls of the second transition pool 108 are communicated with the combined filler area 102 and the three-dimensional elastic filler 1031 through water pipes. The first transition tank 107 carries out primary sedimentation on sewage, removes impurities in the sewage, reduces the probability that the impurities enter the combined filler area 102, and the second transition tank 108 carries out secondary sedimentation on the sewage, removes the impurities in the sewage, and reduces the probability that the impurities enter the three-dimensional elastic filler area 103.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. An integrated treatment device for fluctuating sewage in a service area is characterized by comprising a device body (1), an anaerobic area (2), an anoxic area (3), an annular aerobic area (4), a settling area (5) and a sludge concentration area (6);
the anaerobic zone (2), the anoxic zone (3) and the sludge concentration zone (6) are positioned in the middle of the device body (1), the annular aerobic zone (4) is positioned around the anaerobic zone (2), the anoxic zone (3) and the sludge concentration zone (6), and the settling zone (5) is positioned on one side of the device body (1) far away from the anoxic zone (3);
the anaerobic zone (2) is communicated with a water inlet pipe (21), the anaerobic zone (2) is communicated with the anoxic zone (3), the anoxic zone (3) is communicated with the annular aerobic zone (4), and the annular aerobic zone (4) is connected with the sedimentation zone (5) through a water distribution weir (51);
the sedimentation zone (5) is an inclined tube sedimentation, the sedimentation zone (5) is divided into an upper part and a lower part, and the two sedimentation zones (5) are respectively communicated with the water outlet pipe (52);
the sludge in the settling zone (5) is lifted to the sludge concentration zone (6) through a sludge return system or returned to the anaerobic zone (2);
a filling structure (7) is arranged at the bottom of the annular aerobic zone (4), and an aeration system is arranged at the bottom of the filling structure (7) of the device body (1);
the upper end surface of the filler structure (7) divides the annular aerobic zone (4) into a low water level operation mode and a high water level operation mode;
when the water inflow is less than or equal to the biofilm treatment capacity of the filler structure (7), the operation mode is a low water level operation mode, and sewage is treated through the biological contact oxidation effect of the filler structure (7);
when the water inflow is larger than the biofilm treatment capacity of the filler structure (7), the high water level operation mode is adopted, the activated sludge flows back to the anaerobic zone (2), and the microorganism treatment under the action of the suspended activated sludge is combined with the biological contact oxidation action of the filler structure (7) to treat the sewage.
2. The integrated treatment device for fluctuating sewage in service areas according to claim 1, wherein the sludge return system comprises a self-sucking pump (81) and a sludge outlet pipeline (82), sludge in the settling zone (5) is lifted to the sludge concentration zone (6) through the self-sucking pump (81) and the sludge outlet pipeline (82), the sludge outlet pipeline (82) is communicated with a pipeline bypass (821), the pipeline bypass (821) is communicated with the anaerobic zone (2), and a liquid level regulating valve is arranged on the pipeline bypass (821).
3. The integrated treatment device for fluctuating nature sewage of service area according to claim 1, characterized in that, the aeration system comprises a blower (91), an air pipe (92) and a microporous aerator (93), the blower (91) is mounted on the device body (1), the blower (91) and the microporous aerator (93) are communicated through the air pipe (92).
4. An integrated treatment unit for fluctuating effluent from service areas according to claim 1, characterised in that the height of the packing structure (7) is 0.3-0.45 times the total height of the unit body (1).
5. The integrated treatment device for fluctuating sewage in service areas according to claim 1, wherein a first steel plate partition (22) is arranged between the anaerobic area (2) and the anoxic area (3), a double row of first water passing pipes (221) are arranged on the first steel plate partition (22), one end of each first water passing pipe (221) is communicated with the anaerobic area (2), the other end of each first water passing pipe is communicated with the anoxic area (3), and the distance between the two rows of first water passing pipes (221) is 0.25 times of the total height of the device body (1).
6. The integrated treatment device for fluctuating sewage in service areas according to claim 1, wherein a second steel plate partition (31) is arranged between the anoxic area (3) and the annular aerobic area (4), a double-row second water passing pipe (311) is arranged on the second steel plate partition (31), one end of the second water passing pipe (311) is communicated with the anoxic area (3), the other end of the second water passing pipe is communicated with the annular aerobic area (4), and the distance between the two rows of second water passing pipes (311) is 0.25 times the total height of the device body (1).
7. The integrated treatment device for fluctuating sewage in service areas according to claim 1, characterized in that the sludge in the sludge concentration area (6) is discharged through a sludge pipe (61), and the bottom of the device body (1) is provided with a sludge discharge port (11) communicated with the sludge pipe (61).
8. The integrated treatment device for service area fluctuating sewage according to claim 1, characterized in that the elevation of the bottom of the water distribution weir (51) at the lower part is 0.4-0.5 times the total height of the device body (1), and the elevation of the bottom of the water distribution weir (51) at the upper part is 0.8-0.9 times the total height of the device body (1).
9. The integrated treatment device for fluctuating sewage in service areas according to claim 1, wherein the elevation of the water outlet of the upper layer is 0.7-0.8 times of the total height of the device, and the elevation of the water outlet of the lower layer is 0.3-0.4 times of the total height of the device.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423078A (en) * | 2020-05-25 | 2020-07-17 | 北控水务(中国)投资有限公司 | Integrated sewage treatment device capable of adapting to water inflow change |
| CN111573974A (en) * | 2020-05-15 | 2020-08-25 | 浙江开创环保科技股份有限公司 | Self-adaptive distributed sewage treatment device and treatment process |
| CN112624531A (en) * | 2021-01-21 | 2021-04-09 | 张德林 | High-efficient environmental protection processing apparatus of chemical industry sewage |
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| CN112624531A (en) * | 2021-01-21 | 2021-04-09 | 张德林 | High-efficient environmental protection processing apparatus of chemical industry sewage |
| CN112624531B (en) * | 2021-01-21 | 2021-09-03 | 山东宏旭化学股份有限公司 | High-efficient environmental protection processing apparatus of chemical industry sewage |
| CN114590885A (en) * | 2022-02-22 | 2022-06-07 | 中山大学 | Quality-based treatment method suitable for high-fluctuation high-ammonia nitrogen sewage |
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