KR101138003B1 - Apparatus for multi-processing of wasted water in a ship - Google Patents

Abstract

The present invention relates to a wastewater treatment apparatus that can automatically purify various wastewaters generated from a ship, and more specifically, to perform inflow-reaction-precipitation-outflow process by microorganisms in a single reactor. By constructing a wastewater treatment device comprising a continuous batch reactor, a membrane filter for filtration of the primary treated water through the continuous batch reactor, an ozone injector and an ozone reactor for deodorization and sterilization of the secondary treated water through the membrane filter. In addition, it is possible to purify various wastewater generated inside the ship more quickly and efficiently, and to reduce the installation space to the maximum, to provide a compact treatment device with excellent applicability to the ship. Larger vessels used by passengers are better at changing loads due to wastewater treatment The present invention relates to a marine complex wastewater treatment device that enables automated advanced treatment to be able to cope dynamically with, as well as to satisfy the recently severely restricted marine wastewater discharge standards.
To this end, the marine complex wastewater treatment apparatus 100 according to the present invention includes a continuous batch reactor 4 for reacting the wastewater supplied from the wastewater tank 1 with microorganisms cultured in activated sludge, and the continuous batch reactor 4 Installed in the filtration tank 12 for filtering the primary treated water discharged through the hollow fiber membrane membrane filter 13 and the secondary treated water extending from the membrane filter 13 of the filtration tank 12. And an ozone injector 16 for incorporating ozone generated from the ozone generator 17 into the secondary treated water and an outlet side of the ozone injector 16 so as to react the secondary treated water with the ozone. 18), the blower (8) by the air supply pipe (8a) and the stirring blade (6b) connected to the lower end of the motor shaft (6a) of the stirring motor (6) inside the continuous batch reactor (4) Air disperser 8b connected with Decanters (5) for discharging are inserted and installed respectively, and the decanters (5) are connected to and installed with the filtration tank (12) by the first discharge pipe (10) on which the discharge pump (11) is mounted. 12, the air filter 8b is connected to the blower 8 by the air supply pipe 8a.

Description

Apparatus for multi-processing of wasted water in a ship}

The present invention provides a continuous batch reactor for performing the inflow-reaction-precipitation-outflow process by microorganisms in a single reactor, a membrane filter for filtration of the primary treated water that has passed through the continuous batch reactor, and By providing ozone injector and ozone reaction tank for deodorization and sterilization of primary treatment water, it is possible to provide high speed treatment of various wastewater generated inside of ship by installing ozone injector and ozone reactor. The present invention provides a compact treatment apparatus having excellent applicability to a vessel by reducing the space to the maximum, and particularly relates to a complex wastewater treatment apparatus for ships optimized for the purpose of treating wastewater of a large vessel such as a cruise ship.

In general, the wastewater treatment method applied to ships is treated with simple contaminants in the case of low-pollution kitchen sewage or household sewage, and the filtrate is discharged to the sea during operation. While reducing the volume, wastewater such as manure, which is heavily polluted, is stored in a separate tank, and the tank lorry is transported to the land treatment facility during the period when the vessel is docked at the port. .

However, in recent years, large passenger ships such as cruise ships have been built not only by increasing the size of various vessels but also by increasing passenger transport, and also the discharge of ship wastewater, including kitchen sewage, living sewage, and manure, which occur during the life of passengers. Since the increase is accompanied by a lot of burden to treat the waste water generated in the ship itself, marine pollution by untreated marine waste water is emerging as a serious environmental problem.

In response to this situation, the need for the prevention of marine pollution by wastewater discharged from ships and the regulation of its discharges have been met with the International Maritime Organization (IMO), the Marine Environment Protection Committee (MEPC). And the MARPOL 73/78 Convention. Table 1 lists the wastewater discharge from ships as defined by the IMO and the United States Coast Guard (USCG).

Emission limit IMO MARPOL
Resolution
MEPC 159 (55) USCG
33CFR 159
PT1-300 USCG / Alaska
33CFR 159.309 Exam period, day 10 10 30 Total Floating Substance (TSS), mg / L 35 150 30 Biological Oxygen Demand (BOD ₅ ), mg / L 25 - 30 Chemical oxygen demand (COD), mg / L 125 - - E. coli / contained in feces
Heat resistant E. coli, cfu / 100ml 100 200 20 Residual chlorine, mg / L 〈0.5 - 0.01 PH (pH) 6.0-8.5 - 6.0-9.0

On the other hand, since most of the ship's wastewater treatment devices produced in Korea are limited to general ships with less than 300 passengers on board, it is difficult to apply to large vessels such as cruise ships. As the treatment standard, IMO Resolution MEPC.159 (55), came into force, it was necessary to develop an efficient treatment system with good biological purification and sterilization ability to meet the enhanced emission standards.

In addition, the wastewater treatment on land can easily secure a large area required for the installation of the equipment, and there is little restriction on the time required for the treatment of the wastewater. Due to the large constraints, a compact apparatus capable of reducing the installation space to the maximum and capable of quickly and efficiently treating wastewater is required.

In addition, it is necessary to provide a treatment apparatus that can actively cope with external physical environmental changes, including changes in the wastewater load of the vessel according to various routes and durations of the vessel. In consideration of the equipment and piping system, marine wastewater treatment systems require a simple and automated system for easy installation, control, repair and maintenance.

The present invention has been made to provide a marine wastewater treatment apparatus that meets the above requirements, biological treatment of organic components and nitrogen and phosphorus components, hollow fiber membrane filtration of suspended solids and deodorization by ozone Through the sterilization and sterilization process, various wastewaters generated inside the ship can be purified and treated more quickly and efficiently, and the installation space is reduced to the maximum to provide a compact treatment device with excellent applicability to the ship. Large vessels used by many passengers, such as ships, can cope more actively with load fluctuations caused by wastewater treatment, as well as automated altitude treatment that can fully satisfy the recently restricted ship wastewater discharge standards. It is a technical idea to provide a marine complex wastewater treatment apparatus. We assume person problem.

As a means for solving the above technical problem, the marine complex wastewater treatment apparatus according to the present invention, a continuous batch reactor for reacting the wastewater supplied from the wastewater tank with microorganisms cultured in activated sludge, and discharged through the continuous batch reactor An ozone injector installed in a filtration tank for filtering the primary treated water with a hollow fiber membrane filter and a discharge tube for secondary treated water extending from the membrane filter of the filtration tank to mix ozone generated from the ozone generator into the secondary treated water. And an ozone reaction tank connected to the outlet side of the ozone injector to react the secondary treated water with ozone.

On the other hand, inside the continuous batch reactor, a stirring blade connected to the lower end of the motor shaft of the stirring motor, an air spreader connected to the blower by an air supply pipe, and a decanter for discharging the first treated water are respectively installed, the decanter is The first discharge pipe is equipped with a discharge pump is connected to the filtration tank, characterized in that the air disperser is connected to the blower by the air supply pipe in the lower side of the membrane filter of the filtration tank.

And, the continuous batch reactor is separated into a plurality of reaction tanks along the side of the filtration tank is installed integrally with the filtration tank, characterized in that the decanter is inserted into each of the reaction tank, the inner surface of the continuous batch reactor Characterized in that the grid-shaped baffle to control the oscillation of the, characterized in that the ozone supply pipe extending from the ozone generator is connected to the upper side of the ozone reactor.

In addition, the decanter includes a buoy float floating on the water surface for the inflow of the first treatment water, a telescope rod connected to the buoy at the lower center of the buoy, and the buoy float according to the telescopic operation of the telescope rod. It is made of a guide rail for guiding the lifting and lowering movement, the telescope and the guide rail is installed in the vertical direction from the bottom of the continuous batch reactor, the first discharge pipe is characterized in that it is installed in connection with the lower side of the telescope The discharge pump for discharging the primary treated water from the continuous batch reactor to the interior of the filtration tank is characterized in that the submersible pump is connected to the decanter in the continuous batch reactor.

According to the present invention as described above, on the basis of a continuous batch reaction tank capable of biological primary treatment of wastewater in one reaction tank, by allowing to perform additional filtration and deodorization and sterilization, the installation space of the wastewater treatment apparatus In this regard, the present invention has the effect of providing a compact treatment device having excellent applicability to a ship, as well as an efficient altitude treatment of wastewater generated in the ship.

In addition, the filtration, deodorization and sterilization of the waste water generated after the continuous batch reactor is automatically performed during the short time the treated water passes through the membrane filter, the ozone injector and the ozone reactor according to the operation of the injection pump. Not only has the effect of reducing the wastewater treatment time to the maximum, but also the wastewater treatment process is performed in a very simple manner along a single path, so that the installation and control of the treatment device and its repair and maintenance are also very easy and easy. It has an effect.

In particular, in the case where a plurality of continuous batch reactors are separated and installed, each of the reactors can be operated alternately to continuously treat the waste water, and even if each of the reactors is operated at the same time because the load of the waste water is increased. Since the time load according to the treatment of waste water is reduced by 1 / n (number of reaction tanks) allocated to each reactor, there is an effect of providing a treatment device that can cope more actively with load fluctuations caused by waste water treatment. .

As a result, it is possible to provide an optimized wastewater treatment device for ships with large load fluctuations due to wastewater treatment, such as large passenger ships such as cruise ships or large vessels with many passengers. It is to have an effect that can provide a wastewater treatment apparatus capable of automated advanced treatment of a level that can sufficiently satisfy.

Finally, when a grid-shaped baffle is installed on the inner upper end of the continuous batch reactor, the surface of the wastewater (treated water) stored in the continuous batch reactor is stably maintained even if an external physical environment change such as a rocking of the vessel occurs. It is possible to maintain, thereby having a very useful effect, such as to be able to perform a more stable treatment of waste water, such as stirring the activated sludge or precipitation of activated sludge in a continuous batch reactor.

1 is a piping diagram showing a marine complex wastewater treatment apparatus according to the present invention,
FIG. 2 is a piping diagram showing a marine complex wastewater treatment apparatus according to another embodiment of the present invention as a continuous batch reactor; FIG.
3 is a plan sectional view of FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The complex wastewater treatment apparatus 100 for ships according to the present invention has a wastewater tank 1, a continuous batch reactor 4 for biological treatment of wastewater, and a hollow fiber membrane for removing suspended solids as shown in FIG. It comprises a filtration tank 12 equipped with a hollow membrane filter 13, an ozone generator 17, an ozone injector 16, and an ozone reaction tank 18 for deodorization and sterilization of waste water.

The waste water tank (1) is to be stored in the waste water, such as various kitchen sewage or living sewage and manure generated from the vessel, the waste water is stored in the state that the removal of the contaminants that the size is relatively large, and the waste water tank (1) is connected to the continuous batch reactor (4) for biological treatment of waste water by the waste water supply pipe (2) equipped with a supply pump (3).

The continuous batch reactor (4) is a well-known apparatus used for biological treatment of wastewater, also known as SBR (Sequencing Batch Reactor), and is a method of changing the method using the activated sludge cultured with microorganisms from a spatial concept to a temporal concept. It is possible to remove various organics, nitrogen and phosphorus by giving aerobic and anaerobic conditions without additional peripherals, and to carry out a series of processes including inflow, reaction, precipitation and outflow. This can provide temporal and spatial advantages.

Therefore, when the marine wastewater treatment apparatus 100 is configured based on the continuous batch reactor 4 as described above, since all biological treatment processes are performed in one reactor, the installation space can be greatly reduced, and the physical of the vessel When the external environment changes, the wastewater inflow process can be adjusted appropriately to increase the wastewater treatment efficiency, and the flexibility of the process due to the automation of operation and the waste of manpower can be prevented.

The blower (8) is provided in the continuous batch reactor (4) by an air supply pipe (8a) equipped with a stirring blade (6b) connected to a lower end of the motor shaft (6a) of the stirring motor (6) and a solenoid valve (SV). The air disperser 8b connected to and a decanter 5 for discharging the primary treatment water are respectively inserted and installed at the bottom of the continuous batch reactor 4, and the solenoid valve SV is mounted in the sludge. The discharge pipe 9 is connected.

The stirring blade 6b performs a function of mixing the wastewater supplied from the wastewater tank 1 with the activated sludge cultured with microorganisms evenly for biological treatment of the wastewater, and the air disperser 8b has the rise of activated sludge ( It performs the oxygen supply function required at the time of upstream and aerobic reaction, and the treatment of organic matter, nitrogen and phosphorus in the waste water by microorganism in the continuous batch reactor (4) proceeds as follows.

First, nitrification, which oxidizes toxic ammonia nitrogen to nitrite, is carried out to nitrosomonas and nitrobacter, which are ammonia nitrifying microorganisms, in an aerobic state in which air (oxygen) is supplied from the air disperser 8b. It is a process of oxidizing to nitric acid through nitrous acid.

^{_{(1) NH 4 + + 1.5O}} 2 → NO 2 - + H 2 O + H + + energy

^{_{(2) NO 2 - + 0.5O}} 2 → NO 3 - + energy

Formula (1) and (2) can be summarized as the formula (3), and the energy generated in each reaction is used for cell synthesis and maintenance of aerobic microorganisms.

NH ⁺ ₄ + 2O ₂ → NO ₃ ^- 2H + ⁺ + H ₂ O + energy ---------------------- (3)

In addition, when a microorganism decomposes an organic substance or organic residue, the reduction of nitrate nitrogen to nitrogen gas while using nitrate nitrogen instead of oxygen is called denitrification. When glucose is used, oxygen is the final electron. In the case of the receptor, 38 ATP is produced when one mole is decomposed during the decomposition of glucose, and 26 ATP is produced when one mole is decomposed when the nitrate nitrogen is the final electron acceptor. Prefer oxygen.

Therefore, although the denitrification reaction proceeds in the anaerobic state in which air (oxygen) is not supplied from the air disperser 8b, the denitrification reaction is reported to proceed even in the presence of oxygen in the weak acid state. Therefore, a carbon source is required, and methanol is mainly used as the carbon source, and the reaction proceeds as in the following formulas (5) and (6).

^{_{(5) 6NO 3 - + 5CH}} 3 OH → 3N 2 + 5CO 2 + 7H 2 O + 6OH -

^{_{(6) NO 2 - + 1.08CH}} 3 OH + 0.24H 2 CO 3 → 0.056C 5 H 9 NO 2 + 0.47N 2 + 1.68H 2 O + HCO 3 -

After the nitrification and denitrification reactions are performed in the continuous batch reactor 4 in this manner to perform biological primary treatment of wastewater, the bottom of the continuous batch reactor 4 is cultured with activated sludge. On the other hand, the filtrate as primary treated water without sludge is discharged to the filtration tank 12 through the first discharge pipe 10 equipped with the discharge pump 11.

In this case, the amount of primary treated water discharged to the filtration tank 12 is adjusted to about 50% to 60%, because the discharge of activated sludge when the amount of primary treated water discharged exceeds 60%. This causes the contamination of the primary treatment water, as well as increases the filtration load of the membrane filter 13 installed in the filtration tank 12, so that the continuous batch reactor (4) to control the discharge of the primary treatment water (4). Decanter (5) is installed inside.

The decanter 5 is installed on the basis of the buoy 5a floating on the surface of the waste water (treated water) stored in the continuous batch reactor 4, and provides the inflow passage of the treated water to the buoy 5a. On the other hand, by connecting the buoy 5a with the first discharge pipe 10 equipped with the discharge pump 11, the filtrate as the primary treated water located on the upper side of the activated sludge is settled discharge pump 11 ) Will be discharged sequentially from the surface of the water.

The decanter 5 is also a well-known component widely used in the continuous batch reactor 4, and various forms such as a simple floating type or a lever operated type are known depending on the operation method thereof. ) Is installed on the upper end side of the telescope rod 5b, the first discharge pipe 10 is connected to the lower end of the telescope rod 5b is a representative embodiment.

As shown in FIGS. 1 and 2, the telescope 5b is provided with a plurality of telescopically connected pipes, preferably three to four pipes, which provide a discharge passage of the primary treated water. As the wastewater flows in, the telescope 5b is extended upward by the buoyancy of the buoy 5a, and the telescope 5b is caused by the weight of the buoy 5a when the primary treated water is discharged. ) Decreases along the downward direction.

In order to more smoothly perform the operation of the decanter 5 by the telescope rod 5b as described above, guide rails 5c of the buoy 5a are installed on both sides of the telescope rod 5b. On the lower side of the buoy 5a, the inlet pipe (not shown) and the turbidity of the primary treated water are introduced to the primary treated water through the telescope rod 5b to operate the discharge pump 11. A turbidity sensor 5d for controlling is provided, respectively.

Each pipe connection part forming the telescope rod 5b is provided with an O-ring for watertight treatment, a guide bearing having a watertight function, and the telescope rod 5b and the guide rail 5c are formed of a continuous batch reactor 4. It is installed in parallel in the vertical direction from the bottom portion, the first discharge pipe 10 extends toward the filter tank 12 in a state connected to the lower end side of the telescope rod (5b).

Inside the filtration tank 12, a hollow fiber membrane-type membrane filter 13 for removing various suspended matters from the primary treated water supplied through the decanter 5 and the first discharge pipe 10 is installed, and the membrane filter 13 At the bottom of the filtration tank 12 corresponding to the lower side of the), an air distributor 8b connected to the blower 8 is installed by an air supply pipe 8a equipped with a solenoid valve SV.

The air disperser 8b removes foreign matter attached to the surface of the membrane filter 13 by bubbles, thereby maintaining a constant filtration performance of the membrane filter 13, and each membrane filter 13. ) Is preferably installed in a cartridge type inside the filtration tank 12 so that it can be easily replaced after use for a certain period of time.

The second discharge pipe 14 extends from the upper end side of each membrane filter 13 installed in the filtration tank 12, while the injection pump 15 and the ozone injector 16 are connected to the second discharge pipe 14. By being installed in each, it is possible to supply the secondary treated water in the state that the suspended matter is removed through the membrane filter 13 to the ozone injector 16 by the injection pump 15, the ozone injector 16 to the ozone generator An ozone supply pipe 17a for supplying ozone gas generated from 17 is connected.

As the ozone injector 16 generates a negative pressure (負壓: a pressure lower than atmospheric pressure) in the course of passing through the nozzle unit, the secondary process water supplied from the injection pump 15, the ozone generator 17 It functions to mix the ozone gas supplied from the ozone supply pipe 17a with the secondary treated water from the same, which is made in the same manner as the general injector.

The ozone generator 17 may use any product as long as it can generate ozone gas. Generally, the ozone generator 17 has two structures, a plate type and a tube type, but compressed air generated from a compressor is used. By purifying through a filter and then supplying it along a discharge tube provided between cooling water passages, the principle of generating ozone gas as oxygen in cold and clean air passing through the discharge tube is decomposed and recombined by collision with electrical energy is the same.

On the other hand, the ozone reaction tank 18 is connected to the end of the second discharge pipe 14 extending through the ozone injector 16, so that the secondary treatment water into which the ozone gas is mixed is introduced into the ozone gas inside the ozone reaction tank 18. Deodorization and sterilization by means of zigzag adjustment of the flow path of the secondary treated water in the ozone reaction tank 18 to maximize the hydraulic residence time of the secondary treated water and the reaction time based thereon. The flow path adjusting plate 18a is installed so that the flow path adjusting plate 18a can be provided.

As described above, the treated water discharge pipe 19 is connected to the outlet side of the ozone reaction tank 18 so that the final treated water, which is deodorized and sterilized in the ozone reaction tank 18, can be discharged to the outside of the ship. The ozone supply pipe 17a extending from the ozone generator 17 is further branched and connected to the upper end side of the ozone reaction tank 18 so that the ozone gas necessary for the deodorization and sterilization treatment can be supplied more sufficiently. .

In addition, another ozone supply pipe (17a) is further branched from the ozone supply pipe (17a) connected to the ozone reaction tank (18) so that the excess ozone gas used for the treatment of waste water can be discharged in a harmless state. It is installed in connection with the (20), the ozone remover 20 is an example of oxidizing the ozone gas by an electrochemical method, or the adsorption and removal of ozone gas with a porous adsorption filter such as activated carbon.

In addition, a check valve for preventing backflow of ozone gas and treated water is provided in the ozone supply pipe 17a corresponding to the outlet side of the ozone generator 17 and the second discharge pipe 14 corresponding to the position past the ozone injector 16. (CV) is provided, in addition to the various sensor mechanism and valve mechanism is provided to achieve the automation of the marine complex wastewater treatment apparatus 100 according to the present invention.

As the sensor mechanism, the continuous batch reactor 4 and the filtration tank 12 are each provided with a water level level sensor 7, and the continuous batch reactor 4 is installed in the decanter 5, and the activated sludge concentration (MLSS) in the treated water. Including the turbidity sensor (5d) for measuring), there is provided a sensor (S1) (S2) for measuring the dissolved oxygen (DO) and the temperature and pH and the redox potential (ORP).

Each sensor includes a supply pump 3 of the wastewater supply pipe 2, a discharge pump 11 of the first discharge pipe 10, an injection pump 15 of the second discharge pipe 14, and a continuous batch reactor 4. And the operation of the blower 8 for the filtration tank 12, and at the same time, the first discharge pipe at the previous position of the respective solenoid valve SV and the discharge pump 11 installed in the sludge discharge pipe 9 and the air supply pipe 8a. It is to control the operation of the solenoid valve (SV) installed in (10).

On the other hand, the ozone connected to the second discharge pipe 14 and the ozone injector 16 corresponding to the inlet and the outlet side of the ozone injector 16 so that the ozone production amount by the ozone generator 17 can be automatically controlled. Pressure gauges P1, P2, and P3 are respectively installed in the supply pipe 17a, and a pressure gauge P4 is also installed in the ozone supply pipe 17a connected to the ozone reactor 18, and the treated water discharge pipe 19 is provided. The sensor (S3) for measuring the final state and the discharge amount of the treated water and feedback control of the wastewater treatment apparatus 100 is installed.

As described above, each sensor (S1) (S2) (S3) and pressure gauge (P1) (P2) (P3) (P4) and the solenoid valve (SV) installed for automation of the wastewater treatment apparatus 100 according to the present invention. Application examples of the control mechanism, such as) is not limited to that shown in Figure 1, if the automation of the wastewater treatment apparatus 100 can be achieved, the type and location of the control mechanism will be apparent that can be changed arbitrarily.

In other words, the application position or number of the control mechanism may be further increased based on the application example shown in FIG. 1, or the application position or number of the control mechanism may be simplified as much as possible based on the application example shown in FIG. 1. This is the same also in the application of the conventional valve V provided for opening and closing of each pipe.

According to the present invention as described above, based on the continuous batch reactor (4) capable of biological primary treatment of waste water in one reaction tank, by allowing to perform additional filtration and deodorization and sterilization treatment, wastewater treatment apparatus As the installation space of 100 can be greatly reduced, it is possible to provide a compact treatment device having excellent applicability to the ship, and also to efficiently process the wastewater generated in the ship.

In addition, filtration and deodorization and sterilization of the waste water generated after the continuous batch reactor 4 is performed by the operation of the injection pump 15, the membrane filter 13, the ozone injector 16 and the ozone reactor 18. Since the process is automatically performed for both the treated water and the short time passing through, it is possible to reduce the treatment time of the waste water as much as possible, and the waste water treatment process is carried out in a very simple way along a single path. Installation and control of the 100 and its repair and maintenance are also very easy and easy to perform.

2 and 3 relates to a marine complex wastewater treatment apparatus 100 according to another embodiment of the present invention, while separating the continuous batch reactor 4 into a plurality of reactors 4a to 4b, Each of the reaction tanks 4a to 4b is arranged compactly around the filtration tank 12 so as to be installed integrally with the filtration tank 12. One decanter 5 is inserted into each of the reaction tanks 4a to 4b. Is installed.

In the drawing, the continuous batch reactor 4 is separated into a first reactor 4a, a second reactor 4b, a third reactor 4c, and a fourth reactor 4d in the clockwise direction along the side portion of the filtration tank 12. Alternatively, it is also possible to separate and install the continuous batch reactor (4) to about three or five, the decanter (5) is a buoy (5a) and telescope ( 5b) and guide rails 5c.

Although not shown in FIGS. 2 and 3, the sludge discharge pipe 9 is also preferably provided for each of the reaction tanks 4a to 4b, and includes a sensor S1 including the water level sensor 7 ( S2) The mechanism is also preferably installed for each reaction tank (4a ~ 4b), the second discharge pipe 14 may be connected to the upper side of the membrane filter 13, the membrane filter through the bottom of the filtration tank 12 It may be connected to the lower end of (13).

Meanwhile, in FIG. 3, by using a pair of wastewater supply pipe 2, a supply pump 3, and a pair of blowers 8, wastewater and air through two reactors 4a, 4b, 4c, 4d, respectively. However, one waste water supply pipe (2), a supply pump (3) and a blower (8) may be used to cover all four reactors (4a to 4b), in which case, respectively. It is preferable to install a solenoid valve (SV) for each waste water supply pipe (2) and air supply pipe (8a) connected to the reaction tank (4a ~ 4b).

In another embodiment of the present invention having the above-described configuration, each of the first discharge pipe 10 for discharging the primary treated water from the decanter 5 of the continuous batch reactor 4 into the filtration tank 12. Although it may be installed separately for each of the reaction tanks (4a ~ 4b), in this case, as a total of four first discharge pipe 10 is extended to the outside of the reaction tank (4a ~ 4b) and connected to the filtration tank 12, the overall piping structure is There is a risk of complexity.

In order to prevent this, as shown in FIG. 2, the discharge pump 11 mounted on the first discharge pipe 10 is installed as an underwater pump on the inner bottom surface of each of the reaction tanks 4a to 4b, respectively. The decanter 5 installed in the reaction tanks 4a to 4b of the reactor is connected directly to the filtration tank 12 via the discharge pump 11, which is an underwater pump, so as to connect the continuous batch reactor 4 and the filtration tank 12. The pipe was not exposed to the outside.

As in another embodiment of the present invention, when the continuous batch reactor 4 is installed separately, the total load required for the treatment of waste water, for example, the rise and stirring of activated sludge and the time load due to the reaction and precipitation It is possible to disperse by 1 / n (reaction number of tanks), thereby operating each of the reaction tanks (4a ~ 4b) alternately it is possible to continue the treatment of waste water.

In addition, when the treatment load of waste water becomes large, the respective reaction tanks 4a to 4b may be operated simultaneously. In this case, the time load due to the rise and stirring of the activated sludge and the reaction and precipitation is also applied to each reactor. By being reduced by 1 / n (number of reaction shells) allocated for each of (4a to 4b), it is possible to provide a treatment apparatus capable of more actively coping with load fluctuations in wastewater treatment.

As a result, it can be optimally applied to large passenger ships such as cruise ships or ships with large load fluctuations due to waste water treatment, such as large ships with many passengers. It is possible to provide a wastewater treatment apparatus 100 capable of automated advanced treatment of a level that can be.

Finally, since the wastewater treatment apparatus 100 according to the present invention is installed in a vessel, the wastewater treatment apparatus 100 is stably treated even in a rocking situation such as a rolling or pitching of a vessel, which may occur during physical operation of the vessel. 2 and 3, a lattice-shaped baffle 21 is installed at the upper end of the continuous batch reactor 4, respectively.

When the baffle 21 is installed in the same manner as described above, the surface of the waste water (treated water) stored in the continuous batch reactor 4 does not sway excessively even when the ship is shaking, and thus the continuous batch reactor 4 In the waste water treatment operation such as stirring and precipitation of activated sludge can be performed more stably, if necessary, a lattice baffle 21 may be installed on the inner upper end of the filtration tank 12.

1: Waste water tank 2: Waste water supply pipe 3: Supply pump
4: continuous batch reactor 4a: first reactor 4b: second reactor
4c: third reactor 4d: fourth reactor 5: decanter
5a: buoy 5b: telescope 5c: guide rail
5d: Turbidity sensor 6 Stirring motor 6a Motor shaft
6b: stirring blade 7: water level sensor 8: blower
8a: air supply pipe 8b: air disperser 9: sludge discharge pipe
10 first discharge pipe 11 discharge pump 12 filtration tank
13 membrane filter 14 second discharge pipe 15 injection pump
16: ozone injector 17: ozone generator 17a: ozone supply pipe
18: ozone reaction tank 18a: flow path adjusting plate 19: treated water discharge pipe
20: ozone remover 21: baffle 100: wastewater treatment device
V: Valve SV: Solenoid Valve CV: Check Valve
S1, S2, S3: Sensor P1, P2, P3, P4: Pressure gauge

Claims (6)

In the wastewater treatment device to discharge the wastewater generated inside the ship by treating itself in the vessel,
The wastewater treatment apparatus 100 includes a first batch discharged through a continuous batch reactor 4 and a continuous batch reactor 4 for reacting the wastewater supplied from the wastewater tank 1 with microorganisms cultured in activated sludge. It is installed in the filtration tank 12 which filters the water by the hollow fiber membrane type membrane filter 13, and the discharge pipe of the secondary treatment water which extends from the membrane filter 13 of the filtration tank 12, and produces | generates it from the ozone generator 17. And an ozone injector 16 for incorporating the ozone into the secondary treated water and an ozone reactor 18 connected to the outlet side of the ozone injector 16 to react the secondary treated water with ozone.
Inside the continuous batch reactor (4) and the stirring blade (6b) connected to the lower end of the motor shaft (6a) of the stirring motor (6), and the air disperser (8b) connected to the blower (8) by the air supply pipe (8a) and Decanters (5) for discharging primary treatment water are inserted and installed, respectively, and the decanters (5) are connected to the filtration tank (12) by the first discharge pipe (10) equipped with the discharge pump (11). Installed,
Combined wastewater treatment apparatus for a ship, characterized in that the air disperser (8b) connected to the blower (8) by the air supply pipe (8a) is installed on the lower side of the membrane filter (13) of the filtration tank (12). The method of claim 1, wherein the continuous batch reactor (4) is separated into a plurality of reaction tanks (4a ~ 4b) along the side portion of the filtration tank 12 is installed integrally with the filtration tank 12, the respective reaction tank (4a ~) The decanter (5) is inserted into every 4b) marine composite wastewater treatment apparatus. 3. The marine complex wastewater treatment system according to claim 1 or 2, wherein a lattice-shaped baffle 21 is installed on the inner upper surface of the continuous batch reactor 4 to control the fluctuation of the water surface. Device. The combined wastewater treatment apparatus for ships according to claim 1 or 2, wherein an ozone supply pipe (17a) extending from the ozone generator (17) is connected to an upper end side of the ozone reaction tank (18). 3. The decanter (5) according to claim 1 or 2, wherein the decanter (5) has a buoy (5a) floating on the water surface for the inflow of the primary treated water, and a buoy (5a) at the lower center of the buoy (5a). Telescope-rod (5b) is connected to the installation and consists of a guide rail (5c) for guiding the lifting and lowering movement of the buoy 5a according to the telescopic rod (5b) expansion and contraction operation,
The telescope rod 5b and the guide rail 5c are installed in a vertical direction at the bottom of the continuous batch reactor 4, and the first discharge pipe 10 is connected to the lower end side of the telescope rod 5b. Combined waste water treatment apparatus for ships, characterized in that. The discharge pump (11) for discharging primary treatment water from the continuous batch reactor (4) into the filtration tank (12) is connected to the decanter (5) inside the continuous batch reactor (4). Combined wastewater treatment apparatus for ships, characterized in that the submersible pump is installed.

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