CN210150803U

CN210150803U - Tank-type oxidation ditch integrated device of intermittent type operation

Info

Publication number: CN210150803U
Application number: CN201920812907.6U
Authority: CN
Inventors: 凌建军
Original assignee: JIANGSU LINGZHI ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd; JIANGSU LINGZHI ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd; Lingzhi Environmental Protection (lin Quan) Co Ltd; LINGZHI ENVIRONMENTAL PROTECTION CO Ltd
Current assignee: JIANGSU LINGZHI ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd; JIANGSU LINGZHI ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd; Lingzhi Environmental Protection (lin Quan) Co Ltd; LINGZHI ENVIRONMENTAL PROTECTION CO Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-03-17
Anticipated expiration: 2029-05-31

Abstract

An intermittently-operated tank-type oxidation ditch integrated device relates to the field of sewage treatment and comprises a tank body, a water inlet pipe and a water outlet pipe, wherein the tank body is divided by a partition plate, two oxidation ditches are formed in the length direction, and the two oxidation ditches are communicated with water from head to tail to form a circular flow; a water inlet pipe is arranged at the head end of the tank body corresponding to one oxidation ditch, a water outlet pipe is arranged at the tail end of the tank body corresponding to the other oxidation ditch, at least one bottom aeration device and one decanter are arranged in the two oxidation ditches, and a hose is arranged at the bottom of the decanter and connected with the water outlet pipe; the tank body oxidation ditch design effectively solves the problem of poor treatment effect caused by large flow and large impact strength of rural sewage in a short time, and meanwhile, the tank body oxidation ditch is internally provided with the bottom aeration device, the flow impeller and the decanter, so that the operation period of equipment can be adjusted according to the rural sewage discharge time, and the applicability is stronger.

Description

Tank-type oxidation ditch integrated device of intermittent type operation

Technical Field

The utility model relates to a sewage treatment field especially relates to rural domestic sewage, city domestic sewage, industrial sewage carry mark and reform transform the field, also can be applied to the emergency treatment in river course, the emergency treatment upgrade of pump station reforms transform.

Background

The main treatment difficulty of rural domestic sewage lies in that the flow is unstable all day long, the rural domestic sewage is usually concentrated in the morning, the evening and the time is less than 4 hours, the discharged sewage accounts for 50% -80% of the total water discharge, the requirement on the impact resistance of equipment is high, therefore, a regulating tank and a pump station are required to be matched, and the civil engineering cost and the equipment cost are high.

Secondly, rural rain and sewage are not shunted, a primary sedimentation tank is generally required to be arranged, the occupied area is large, and nitrogen and phosphorus removal is required in the rural sewage treatment process, if an MBR process is adopted, although good nitrogen and phosphorus removal can be realized, the general membrane flux is relatively low, membrane pollution is easy to occur, the membrane pollution is not easy to clean and replace, the maintenance cost is large, moreover, rural sewage treatment projects are numerous, various villages and towns are dispersed, and most sewage treatment devices are buried underground to reduce the occupied area, so that the equipment maintenance is difficult.

The oxidation ditch technology applied to sewage treatment has mature process, can stably and effectively treat sewage up to the standard under the proper working condition, but aiming at the complex conditions of unstable sewage flow in rural areas, no distribution of rain and sewage and the like, an aerobic, facultative and anaerobic treatment ditch needs to be designed besides a regulating tank and a primary sedimentation tank, and a secondary sedimentation tank is matched.

Therefore, the technical problem of the rural sewage is not solved effectively.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intermittent type operation's pot-type oxidation ditch integrated device, area is little, equipment cost is low, the transportation is convenient, can effectively solve rural sewage short-term flow big, the unsatisfactory problem of treatment effect that rain and sewage not shunts the production, main innovation lies in making jar body design for the oxidation ditch form, adopt bottom aeration oxygenation and decant the hydrophone and go out water in the oxidation ditch, intermittent type formula carries out sewage treatment, both improved the facility for later maintenance, impact resistance is strong, also need not to add and establish the equalizing basin, the pump station, sink other facilities such as pond just, be adapted to the emission cycle of rural sewage in a flexible way, the treatment effect is stable effective, moreover, the steam generator is simple in structure, the industrialization of being convenient for is used.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that: an intermittently-operated tank-type oxidation ditch integrated device comprises a tank body, a water inlet pipe and a water outlet pipe, and is characterized in that the tank body is separated by a partition plate, two oxidation ditch channels are formed in the length direction, and the two oxidation ditch channels are communicated with water from the head to the tail to form a circulation flow; the water inlet pipe is arranged at the head end of the tank body corresponding to one oxidation ditch channel, the water outlet pipe is arranged at the tail end of the tank body corresponding to the other oxidation ditch channel, at least one bottom aeration device and one decanter are arranged in the two oxidation ditch channels, and the bottom of the decanter is provided with a hose connected with the water outlet pipe. Rural sewage flows into the tank body from the water inlet pipe, then flows around in the channels of the two oxidation ditches, aerobic reaction is carried out in the area close to the bottom aeration device, facultative/anaerobic reaction is carried out in the area far away from the bottom aeration device, precipitation is carried out after operation for a period of time, and then drainage is finished through the decanter.

Further, the bottom aeration device can be one or a combination of perforated, tubular, plate, disc, jet aerators.

In order to further improve the treatment efficiency, suspended spherical fillers and/or square fillers and/or hollow spherical fillers with sponge fillers are arranged in the oxidation ditch of the tank body, and the volume capacity of the fillers in the oxidation ditch is 15-30%. The addition of the flowing filler forms an MBBR fluidized bed effect in the oxidation ditch, realizes the coexistence process of an activated sludge method, a contact oxidation method and activated sludge and contact oxidation (filler surface film), and strengthens the sewage treatment capability.

The bottom aeration devices in the optimized tank body oxidation ditch channels are two in design, one is arranged in the oxidation ditch channel close to the water inlet pipe, and the other is arranged in the oxidation ditch channel close to the water outlet pipe. The aeration device is used for oxygenation, and aerobic, facultative and relative anaerobic reactions occur along with the change of the oxygen concentration in the oxidation ditch. Generally, only the aeration devices corresponding to the front parts of the oxidation ditch channels of the water inlet pipe need to be opened, and if the ammonia nitrogen content of the sewage in the tank is higher and the ammonia nitrogen in the outlet water is unqualified, two aeration devices need to be opened simultaneously.

Furthermore, the partition board in the tank body is a board body with at least one group of symmetrical wave crests and wave troughs on the cross section, and the wave troughs are easy to gather suspended fillers. Most preferably, the partition plate is a plate body with an S-shaped section, a Z-shaped plate body or a wavy plate body.

Furthermore, a flow impeller can be additionally arranged in the oxidation ditch in the tank body to help complete the circulating flow of water flow.

Further, the water decanter is a float-type water decanter or a push rod-type water decanter, and is made of stainless steel or plastic. In actual operation, because rural sewage is discharged in the middle, early, middle and late directions, the water decanting time of the water decanter is required to avoid the peak time of water consumption in the middle, early, late and late directions.

In order to ensure the normal operation of the equipment, a net cover is additionally arranged outside the decanter and the flow pusher.

Furthermore, the material of the tank body is hollow and wrapped with PP, so that the heat preservation effect is good.

Furthermore, an electromagnetic valve and/or an electric valve are arranged on the water inlet pipe and the water outlet pipe of the tank body. The water inlet pipe of the tank body is connected with the water outlet of the integrated prefabricated pump station in front. The integrated prefabricated pump station, the water inlet pipe/water outlet pipe valve of the tank body, the flow impeller, the bottom aeration device and the water decanter are controlled by signals of a PLC (programmable logic controller) control console, so that the automatic regulation and control of the water outlet flow of the integrated prefabricated pump station, the opening and closing and flow of the water inlet and outlet of the tank body, the rotating speed and direction of the flow impeller, the aeration quantity and aeration time of the aeration device and the water decanting time of the water decanter are realized.

The utility model has the advantages that:

1. the jar body is designed into the oxidation ditch form, has realized the oxidation ditch circulation at the internal, and the effectual rural sewage short time of having solved is big for the flow, and the problem that impact strength is big need not to add and establishes equalizing basin and pump station to rural sewage rain and sewage not shunted the problem also can pass through the utility model discloses an oxidation ditch jar body once only solves, need not to add again and establishes just heavy pond, the civil engineering and the equipment cost that has significantly reduced.

2. The bottom aeration device, the flow impeller and the decanter are arranged in the tank body oxidation ditch, so that the operation period of the equipment can be adjusted according to the rural sewage discharge time, and the applicability is stronger.

3. The flowing filler is added in the oxidation ditch of the tank body, so that the coexistence process of an activated sludge method, a contact oxidation method and activated sludge and contact oxidation (filler surface film) is realized, and the sewage treatment capacity is enhanced.

Drawings

FIG. 1 is a front view of embodiment 1.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 1.

FIG. 4 is a front view of embodiment 2.

Fig. 5 is a left side view of fig. 4.

Fig. 6 is a top view of fig. 4.

FIG. 7 is a front view of embodiment 3.

Fig. 8 is a left side view of fig. 7.

Fig. 9 is a top view of fig. 7.

Fig. 10 is a schematic view showing the separator of example 1 having an S-shaped cross section.

Fig. 11 is a schematic view showing the separator of example 1 having a Z-shaped cross section.

FIG. 12 is a schematic view showing that the separator of example 1 has a wavy cross section.

Detailed Description

Example 1: as shown in fig. 1, 2 and 3, the intermittently-operated tank-type oxidation ditch integrated device comprises a tank body 1, a water inlet pipe 2 and a water outlet pipe 3, wherein the tank body 1 is made of hollow winding PP, the tank body 1 is internally divided by a partition plate 4 to form two oxidation ditch channels 1.1 and 1.2 in the length direction, and the two oxidation ditch channels 1.1 and 1.2 are communicated end to form a circulation flow; a water inlet pipe 2 is arranged at the head end of the tank body 1 corresponding to one oxidation ditch channel 1.1, a water outlet pipe is arranged at the tail end of the tank body 1 corresponding to the other oxidation ditch channel 1.2, a bottom aeration device 5 and a float type decanter 6 are arranged in the two oxidation ditch channels 1.1 and 1.2, the bottom aeration device 5 is a disc type microporous aerator, a diving water impeller 7 is additionally arranged, a mesh cover 8 is additionally arranged on the diving water impeller 7, a hose is arranged at the bottom of the float type decanter 6 and connected with a water outlet pipe 3, and the water outlet pipe 3 is connected with an ultraviolet disinfection device 10. Rural sewage flows into the tank body 1 from the water inlet pipe 2, then flows around in the two oxidation ditch channels 1.1 and 1.2, aerobic reaction is carried out in the area close to the bottom aeration device 5, facultative/anaerobic reaction is carried out in the area far away from the bottom aeration device 5, after operation for a period of time, precipitation is carried out, and then drainage is completed through the float-type decanter 6. The oxidation ditch of the tank body 1 is internally provided with a suspended spherical filler 11, and the volume capacity of the filler 11 in the oxidation ditch is 15-30%. The addition of the flow filler 11 forms an MBBR fluidized bed effect in the oxidation ditch, realizes the coexistence process of an activated sludge method, a contact oxidation method and activated sludge and contact oxidation (filler surface film), and strengthens the sewage treatment capability. The water inlet pipe 2 and the water outlet pipe 3 of the tank body 1 are provided with electric valves 12. The water inlet pipe 2 of the tank body 1 is connected with the water outlet 3 of the integrated prefabricated pump station in front. The integrated prefabricated pump station, the electric valve 12 for the water inlet pipe/water outlet pipe of the tank body, the flow impeller, the bottom aeration device and the water decanter are controlled by signals of a PLC (programmable logic controller) control console, so that the automatic regulation and control of the water outlet flow of the integrated prefabricated pump station, the opening and closing and flow of the water inlet and outlet of the tank body, the rotating speed and direction of the flow impeller, the aeration quantity and aeration time of the aeration device and the water decanting time of the water decanter are realized.

Example 2: referring to the embodiment 1, as shown in fig. 4, 5 and 6, the bottom aeration device 5 is changed into a self-priming spiral aerator instead of the impeller, and two devices are designed, one is arranged in the oxidation ditch channel close to the water inlet pipe 2, and the other is arranged in the oxidation ditch channel close to the water outlet pipe 3.

Example 3: referring to the embodiment 2, as shown in fig. 7, 8 and 9, the bottom aeration device 5 is a horizontal plug-flow aerator, and is designed into two parts, one is arranged in the oxidation ditch channel close to the water inlet pipe 2, and the other is arranged in the oxidation ditch channel close to the water outlet pipe 3. The horizontal plug flow aerator is provided with a mesh enclosure 8.

Example 4: referring to example 1, the tank separator 4 is a plate body having an S-shaped cross section, as shown in fig. 10.

Example 5: referring to example 1, the tank separator 4 is a plate having a zigzag cross section, as shown in fig. 11.

Example 6: referring to example 1, as shown in fig. 12, the tank separator 4 is a plate body having a wavy cross section.

In examples 1-6, generally, only the aeration device corresponding to the front part of the oxidation ditch of the water inlet pipe 2 needs to be opened, and if the ammonia nitrogen content of the sewage in the tank is high and the ammonia nitrogen in the outlet water is unqualified, two aeration devices need to be opened simultaneously.

The decanter can also be a push rod type decanter, which is made of stainless steel or plastic. In actual operation, because rural sewage is discharged in the middle, early, middle and late directions, the water decanting time of the water decanter is required to avoid the peak time of water consumption in the middle, early, late and late directions.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. An intermittently-operated tank-type oxidation ditch integrated device comprises a tank body, a water inlet pipe and a water outlet pipe, and is characterized in that the tank body is separated by a partition plate, two oxidation ditch channels are formed in the length direction, and the two oxidation ditch channels are communicated with water from the head to the tail to form a circulation flow; the water inlet pipe is arranged at the head end of the tank body corresponding to one oxidation ditch channel, the water outlet pipe is arranged at the tail end of the tank body corresponding to the other oxidation ditch channel, at least one bottom aeration device and one decanter are arranged in the two oxidation ditch channels, and the bottom of the decanter is provided with a hose connected with the water outlet pipe.

2. An intermittently operated tank oxidation ditch integrated apparatus according to claim 1, wherein the bottom aeration device is one or a combination of perforated, tubular, plate, disc, and jet aerators.

3. The tank type oxidation ditch integrated device for intermittent operation according to claim 1, characterized in that suspended spherical packing and/or square packing and/or hollow spherical packing with sponge packing arranged inside are arranged in the oxidation ditch of the tank body; the volume capacity of the filler in the oxidation ditch is 15-30%.

4. The intermittently operated tank type oxidation ditch integrated device as claimed in claim 1, wherein the bottom aeration device in the oxidation ditch channel of the tank body is designed into two, one is arranged in the oxidation ditch channel close to the water inlet pipe, and the other is arranged in the oxidation ditch channel close to the water outlet pipe.

5. The integrated tank oxidation ditch apparatus according to claim 1, wherein the partition plate is a plate having at least one set of symmetrical peaks and troughs in cross section.

6. The intermittently operated tank type oxidation ditch integrated apparatus as claimed in claim 5, wherein the partition is a plate body having an S-shaped section, a zigzag-shaped section or a wavy section.

7. The integrated device of claim 1, wherein a flow impeller is added in the oxidation ditch channel in the tank body.

8. The intermittently operated tank oxidation ditch integrated apparatus according to claim 1, wherein the decanter is a float-type decanter or a push-rod decanter.

9. The tank type oxidation ditch integrated device operated intermittently according to claim 7 or 8, wherein a net cover is additionally arranged outside the decanter and the flow impeller.

10. The tank type oxidation ditch integration device intermittently operating according to claim 7 or 8, wherein the water inlet pipe and the water outlet pipe of the tank body are provided with electromagnetic valves and/or electric valves, and the water inlet pipe of the tank body is connected with the water outlet of the integrated prefabricated pump station in front; the integrated prefabricated pump station, the water inlet pipe/water outlet pipe valve of the tank body, the flow impeller, the bottom aeration device and the decanter are controlled by signals of a PLC control console.