CN214880937U

CN214880937U - Sewage treatment device for realizing sewage discharge in offshore and shore-approaching modes

Info

Publication number: CN214880937U
Application number: CN202120068165.8U
Authority: CN
Inventors: 季成斌; 王琰; 张文彬
Original assignee: Shanghai Shijiu Marine Equipment Co ltd
Current assignee: Shanghai Shijiu Marine Equipment Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-11-26
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a sewage treatment device for realizing sewage discharge in offshore and in-shore areas, which comprises a domestic sewage treatment device and a treated water recycling device, wherein the treated water recycling device comprises a water storage cabinet and a three-way valve, and water which cannot be discharged after treatment in the in-shore area can be stored through the water storage cabinet and used for flushing toilets and the like for recycling; the domestic sewage treatment device also pumps the vacuum suction pipeline into vacuum by ventilating the driving pipeline, sucks out floc (namely activated sludge) with aerobic bacteria deposited in the clean water chamber through the suction inlet and returns the floc into the first aeration chamber through the mixing pipeline, and the activated sludge content in each chamber is kept balanced by the circulation, so that the sewage treatment effect is improved.

Description

Sewage treatment device for realizing sewage discharge in offshore and shore-approaching modes

Technical Field

The utility model belongs to marine domestic sewage system, concretely relates to realize offshore and lean on shore to sewage treatment plant of sewage discharge.

Background

In the treatment mode of the marine domestic sewage system, the traditional method is a microbial treatment method, a certain amount of precipitates are inevitably generated, the filter of the precipitates can cause the influence of blockage on a membrane group, the basic workload of a crew is greatly increased by frequent replacement and cleaning, and the peculiar smell generated by the domestic sewage can make the crew feel uncomfortable to the work.

In addition, after the ship is in shore, the wharf strictly prohibits sewage discharge, even if the treated water reaching the standard cannot be discharged, domestic sewage on the ship is continuously generated due to the existence of sailors, and needs to be properly solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a realize offshore and lean on the bank to sewage treatment plant of sewage discharge is provided, can save the sewage after handling and carry out the circulation as water such as washing closestool and use repeatedly when leaning on the bank, still make the circulation of the active sludge in the processing apparatus box in each cavity room simultaneously to keep the content balance in each cavity, improve treatment effect, avoid blockking up.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a sewage treatment device for realizing the sewage discharge in offshore and shore-based fields comprises a domestic sewage treatment device, which comprises a box body, a first aeration chamber, a second aeration chamber and a clear water chamber which are sequentially arranged in the box body, a suction pump arranged outside the box body and a secondary filtering device, wherein the top of the first aeration chamber is provided with a sewage inlet, the lower part of the side wall is provided with a first flow passage communicated with the second aeration chamber, the upper part of the side wall of the second aeration chamber is provided with a second flow passage communicated with the clear water chamber, a built-in membrane group is arranged in the clear water chamber, one end of the built-in membrane group is connected to the suction pump through the box body, and the other end of the suction pump is connected with the secondary filtering device to a ship discharge port, the sewage treatment device also comprises a treated water recycling device which comprises a water storage cabinet and a three-way valve, wherein the three-way valve is arranged between the secondary filtering device and the ship discharge port and is connected with the water storage cabinet, and a water outlet of the water storage cabinet is connected with a water suction pump and is connected to a use end; the domestic sewage treatment device also comprises a jet circulation mechanism which comprises a driving pipeline, a mixing pipeline, a vacuum suction pipeline and an air source, wherein the driving pipeline, the mixing pipeline, the vacuum suction pipeline and the air source are arranged outside the box body, one end of the driving pipeline is connected to the air source, the other end of the driving pipeline is respectively connected to one end of the mixing pipeline and one end of the vacuum suction pipeline, the other end of the mixing pipeline is communicated to the upper part of the first aeration chamber, and the other end of the vacuum suction pipeline is provided with a suction inlet and is longitudinally communicated to the lower part of the clean water chamber.

The air source is a fan of the sewage treatment device.

The distance between the suction inlet and the bottom surface of the clear water chamber is 50-100 mm.

The secondary filtering device comprises an ultraviolet sterilizer and an MBR filtering module which are connected in sequence.

The bottom of the first aeration chamber, the bottom of the second aeration chamber and the bottom of the clear water chamber are all provided with slag outlets and are connected to a ship slag outlet or an offshore interface through a crushing discharge pump.

Adopt the utility model discloses a realize offshore and lean on shore to sewage treatment plant of sewage discharge has following advantage:

1. designing a water storage cabinet, storing water which cannot be discharged after being treated in the process of coming to shore, and using the water storage cabinet for flushing a closestool and the like for recycling;

2. the driving pipeline is ventilated, the vacuum suction pipeline is vacuumized, flocs (namely activated sludge) with aerobic bacteria deposited in the clean water chamber are sucked out through the suction inlet and are returned to the first aeration chamber through the mixing pipeline, and the content of the activated sludge in each chamber is kept balanced through circulation, so that the sewage treatment effect is improved.

3. The air source can utilize the device to take the fan by itself, need not additionally to increase the driving source again.

4. The deposition of the clear water chamber is reduced, the blockage of a built-in membrane group of the clear water chamber can be reduced, and the filtering effect is further improved.

Drawings

The following detailed description of the present invention is made with reference to the accompanying drawings and the embodiments:

fig. 1 is a schematic structural diagram of a sewage treatment device for realizing the discharge of sewage offshore and in shore.

Detailed Description

The utility model discloses a realize offshore and lean on bank to sewage treatment plant of sewage discharge as shown in figure 1, the same with prior art is, equally also include domestic sewage treatment plant 100, it mainly includes box 1, locate first aeration chamber 2 in the box 1 in proper order, second aeration chamber 3 and clear water room 4, locate the outer suction pump 12 of box 1, second grade filter equipment, 2 tops of first aeration chamber are equipped with sewage entry 5, the lateral wall lower part is equipped with the first runner 6 with 3 intercommunications of second aeration chamber, 3 lateral wall upper portions of second aeration chamber are equipped with the second runner 7 with clear water room 4 intercommunication, be equipped with built-in membrane group 13 in the clear water room, built-in membrane group 13 one end is led out box 1 and is connect to suction pump 12, second grade filter equipment to ship discharge port is connected to the suction pump 12 other end. The processing principle is as follows: sewage flows into the first aeration chamber 2 from the sewage inlet 5, organic matters in the sewage are degraded by the action of microorganisms in indoor activated sludge, then flows into the second aeration chamber 3 from the lower part of the first flow channel 6 to ensure the retention time of the sewage, flows into the clear water chamber 4 from the upper part of the second flow channel 7 after deep contact degradation, is pumped out of the box body 1 by the suction pump 12 after being filtered by the micropores with the built-in membrane group 13, and is discharged by the ship discharge port 14 after being treated by the secondary filtering device. However, when the facility is on shore, the discharge of treated water is often prohibited according to regulations, and in the domestic sewage treatment apparatus 100, a large amount of activated sludge is collected at the bottom of the clean water chamber 4 after a certain period of use, and more, not only the treatment capacity of the entire tank 1 is reduced, but also the clogging of the built-in membrane module 13 is increased.

Therefore, the sewage treatment device for realizing offshore and shore-based sewage discharge of the utility model further comprises a treated water recycling device 200, which comprises a water storage cabinet 21 and a three-way valve 22 (such as an electromagnetic three-way valve, etc.), wherein the three-way valve 22 is arranged between the secondary filtering device and the ship discharge port 14 and is connected with the water storage cabinet 21, a water outlet of the water storage cabinet 21 is connected with a water suction pump 23 and is connected to a ship, such as a using end 24 of a toilet flushing water tank, etc., when the device is shore-based, the treated purified water is conveyed to the water storage cabinet 21 through the three-way valve 22 for storage, and is returned to the domestic sewage treatment device 100 for treatment after being used for flushing the toilet, etc.; after waiting offshore, the ship is discharged from the ship discharge port 14 through the three-way valve.

And, this sewage treatment unit 100 still includes a jet circulation mechanism, it includes locating the drive line 8 outside the box 1, mixing line 9, vacuum suction line 10 and air supply, drive line 8's one end is connected to the air supply, the other end is y form and is connected to mixing line 9 and the one end of vacuum suction line 10 respectively, mixing line 9 and drive line 8 straight-through, vacuum suction line 10 then forms acute angle contained angle with drive line 8, so that vacuum suction line 10 constitutes the jet vacuum principle, and mixing line 9's the other end lets in to first aeration chamber 2 upper portion, the other end of vacuum suction line 10 is equipped with the sunction inlet and vertically lets in to clear water chamber 4 lower part. The driving pipeline 8 is aerated by the air source, the vacuum suction pipeline 10 is vacuumized, flocs (namely activated sludge) with aerobic bacteria deposited in the clean water chamber 4 is sucked out through the suction inlet and is returned to the first aeration chamber 2 through the mixing pipeline 9, and the content of the activated sludge in each chamber is kept balanced by circulation, so that the whole sewage treatment effect is improved. Meanwhile, the deposition of the clean water chamber 4 is reduced, the blockage of the built-in membrane group 13 of the clean water chamber 4 can be reduced, and the filtering effect is further improved.

As an embodiment, the air source can be directly the fan 11 of the domestic sewage treatment device 100, and the air source can be output by branches without adding equipment.

As an embodiment, the distance between the suction port and the bottom surface of the clear water chamber 4 is controlled to be 50-100 mm, and then sludge at the bottom of the chamber can be effectively sucked out.

As an embodiment, the secondary filtering device comprises an ultraviolet sterilizer 15 and an MBR filtering module 16 which are connected in sequence and respectively perform sterilization and MBR membrane filtration.

As an embodiment, the bottoms of the first aeration chamber 2, the second aeration chamber 3 and the clean water chamber 4 are provided with a slag discharge port 17 and are connected to a ship slag discharge port or an offshore interface 19 through a crushing discharge pump 18, and impurities which are difficult to degrade can be crushed and discharged. And the top of the second aeration chamber 3 is also provided with a ventilation port 20 connected to the ship chimney.

However, those skilled in the art should realize that the above embodiments are only used for illustrating the present invention and not used as a limitation of the present invention, and that the changes and modifications to the above embodiments are within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. The utility model provides a realize offshore and lean on bank sewage treatment plant to sewage discharge, including domestic sewage treatment plant, the power distribution box comprises a box body, locate the first aeration room in the box in proper order, second aeration room and clean water room, locate the outer suction pump of box, second grade filter equipment, first aeration roof portion is equipped with the sewage entry, the lateral wall lower part is equipped with the first runner with second aeration room intercommunication, second aeration room lateral wall upper portion is equipped with the second runner with clean water room intercommunication, be equipped with built-in membrane group in the clean water room, built-in membrane group one end is led out the box and is connect to the suction pump, second grade filter equipment to ship discharge opening is connected to the suction pump other end, its characterized in that: the sewage treatment device also comprises a treated water recycling device which comprises a water storage cabinet and a three-way valve, wherein the three-way valve is arranged between the secondary filtering device and the ship discharge port and is connected with the water storage cabinet, and a water outlet of the water storage cabinet is connected with a water suction pump and is connected to a use end; the domestic sewage treatment device also comprises a jet circulation mechanism which comprises a driving pipeline, a mixing pipeline, a vacuum suction pipeline and an air source, wherein the driving pipeline, the mixing pipeline, the vacuum suction pipeline and the air source are arranged outside the box body, one end of the driving pipeline is connected to the air source, the other end of the driving pipeline is respectively connected to one end of the mixing pipeline and one end of the vacuum suction pipeline, the other end of the mixing pipeline is communicated to the upper part of the first aeration chamber, and the other end of the vacuum suction pipeline is provided with a suction inlet and is longitudinally communicated to the lower part of the clean water chamber.

2. A wastewater treatment plant for achieving offshore and near-shore discharge of wastewater according to claim 1, characterized in that: the air source is a fan of the sewage treatment device.

3. A wastewater treatment plant for achieving offshore and near-shore discharge of wastewater according to claim 1, characterized in that: the distance between the suction inlet and the bottom surface of the clear water chamber is 50-100 mm.

4. A wastewater treatment plant for achieving offshore and near-shore discharge of wastewater according to claim 1, characterized in that: the secondary filtering device comprises an ultraviolet sterilizer and an MBR filtering module which are connected in sequence.

5. A wastewater treatment plant for achieving offshore and near-shore discharge of wastewater according to claim 1, characterized in that: the bottom of the first aeration chamber, the bottom of the second aeration chamber and the bottom of the clear water chamber are all provided with slag outlets and are connected to a ship slag outlet or an offshore interface through a crushing discharge pump.