KR20140115878A - Ballast water treatment system - Google Patents

Abstract

The present invention relates to a ballast water treatment system. The present invention comprises: a filter and an electrolysis unit; a first sensor unit; a control unit; an UV/TiO_2 system; an automatic neutralization treatment device; and a second sensor unit. According to the present invention, by effectively eliminating microorganisms of ballast water in a ballasting step of the ballast water, bactericidal efficiency of the ballast water satisfies USCG criteria. Also, neutralization efficiency of the ballast water can be improved in a deballasting step of the ballast water.

Description

{BALLAST WATER TREATMENT SYSTEM}

The present invention relates to a ship ballast water treatment system.

In operation, the ship maintains the equilibrium of the ship by introducing the ballast water from the outside. In this way, the ballast water flowing into the ship is sterilized and stored in the ship, and when discharging the ballast water to the outside, the neutralizing agent is added to neutralize and discharged to the outside.

The ballast water entering the ship can be removed mechanically, physically, or chemically by removing any solids or microorganisms contained in the ballast water. At this time, the mechanical method may be a method of filtering the ballast water to be subjected to microbial decay to the filter.

The filter for filtering the ballast water may be a filter having the form of edged wire, wire mesh, or disk.

The physical method may be a method of irradiating ultraviolet rays to the ballast water to be subjected to microbial killing and an advanced oxidation process (AOP) method of generating OH radicals.

Also, as a chemical method, there is a method of treating ballast water to be subjected to microbial decay by generating hypochlorite (HClO) and hypochlorite ion (OCl-) using a chlorine-based disinfectant or electrolysis .

As another example of the chemical method, a method of adding a chemical substance such as ozone (O ₃ ), chlorine dioxide (ClO ₂ ), or the like can be used.

However, among the disinfection methods of ballast water using the above method, the mechanical method has a disadvantage that it is difficult to clean the debris trapped in the filter, and therefore, when a screen filter such as an edge wire filter or a mesh wire filter is used, There is a drawback that clogging occurs due to solid matter.

In addition, the physical method has the disadvantage that there is no possibility of microbial death in the ballast water due to the lack of microbial killing, and the chemical method has the disadvantage that the additional step of neutralizing the residual chemical in the ballast water is required. There is a disadvantage that there is a limit of ability.

The present invention is intended to improve the microbial killing efficiency of ship ballast water.

Another object of the present invention is to provide a ship ballast water treatment apparatus in which the microbial death criterion of the ballast water meets the United States Coast Guard (USCG) standard.

A ship ballast water treatment system according to one aspect of the present invention includes a filter and an electrolytic unit that receives the ballast water from the outside and filters and electrolyzes the ballast water, The first sensor unit being connected to the first sensor unit and receiving the sea water characteristic measurement value from the first sensor unit and outputting the sea water characteristic measurement value according to the sea water characteristic measurement value, A control unit for generating a control signal for controlling the electrolysis intensity by determining the degree of contamination of the ship ballast water, a TiO ₂ coated plate, and generating an OH radical from an interaction between the ultraviolet ray and the TiO ₂ , is provided with a filter and the UV / TiO ₂ system, a neutralizing agent for sterilizing the microorganisms contained in the electrolytic residue number of the ballast water has passed through portion, wherein An automatic neutralization apparatus for neutralizing the ballast water having passed through the filter and the electrolytic unit by receiving a neutralizer discharge signal from the neutralization apparatus, and a total residual material of the ballast water neutralized in the automatic neutralization apparatus, oxidant, TRO) and transmitting a result of the total residual oxidant concentration measurement to the control unit, wherein the control unit controls the concentration of the oxidizing agent in accordance with a result of the total residual oxidant concentration measurement transmitted from the second sensor unit And generates the neutralizing agent discharge control signal for controlling the neutralizing agent discharge amount discharged from the automatic neutralization apparatus.

The filter and the filter of the electrolytic unit are preferably disk filters.

It is preferable that the filter and the electrolytic unit are provided by laminating a plurality of electrode modules each having a circular plate shape.

The seawater characteristic measured by the sensor unit may be any one of conductivity, temperature, and total residual oxidant concentration.

The TiO ₂ coated plate of the UV / TiO ₂ system may be formed of either a mesh structure or a perforated plate shape.

According to this feature, the filter and the electrolytic unit remove or kill the microorganisms and solids contained in the ballast water, and adjust the electrolysis intensity according to the conductivity, temperature and residual oxidant concentration of the ballast water in the ballasting step Thereby effectively destroying microbes in the ballast water.

In the de-ballasting step, the UV / TiO ₂ system further destroys the remaining microorganisms in the ballast water and neutralizes the ballast water through the automatic neutralization system.

As a result, the microbial killing efficiency of the ballast water at the ballasting stage of the ballast water meets the USCG standard. In addition, since the residual microorganisms in the ballast water are additionally killed in the de-ballasting step of the ballast water, the microbial death criterion of the treated ballast water is more compatible with the USCG standard.

1 is a block diagram schematically illustrating the structure of a ship ballast water treatment system according to an embodiment of the present invention.
FIG. 2A is an exploded perspective view illustrating a filter and an electrolysis unit of a marine ballast water treatment system according to an embodiment of the present invention. FIG.
FIG. 2B is an exploded perspective view illustrating a filter and an electrolytic unit of a marine ballast water treatment system according to an embodiment of the present invention. FIG.
FIG. 3A is a perspective view showing a part of a filter and an electrolysis unit of a marine ballast water treatment system according to an embodiment of the present invention. FIG.
FIG. 3B is a cross-sectional view illustrating a portion of a filter and an electrolysis unit of a marine ballast water treatment system according to an embodiment of the present invention. FIG.
3C is a perspective view of an electrode that is part of a filter and electrolysis unit of a marine ballast water treatment system according to an embodiment of the present invention.
FIG. 3D is a perspective view showing an electrode spacer which is a part of a filter and an electrolysis unit of a marine ballast water treatment system according to an embodiment of the present invention.
4 is a flowchart illustrating an operation of a ship ballast water treatment system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Hereinafter, a ballast water treatment system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, a ship ballast water treatment system according to an embodiment of the present invention will be described in detail with reference to FIG.

Referring to FIG. 1, the ship ballast water treatment system according to an embodiment of the present invention includes an inlet 1 for receiving ship ballast water from the outside, a flow rate measuring device for measuring the flow rate of the ship ballast water flowing into the inlet 1, A first sensor unit (not shown) for measuring the characteristics of the ship ballast water that has passed through the electrolytic unit 10, the filter and the filter for filtering and electrolyzing the ship ballast water, A control unit 100 for controlling the filter, the electrolytic unit 10 and the automatic neutralization apparatus 40 by monitoring the result of the ship ballast water measurement from the first sensor unit 30, first and stored in the ballast tank 50 that stores the sensor unit ship ballast which has passed through the 30, the ballast tank 50 is that UV irradiation in the ballast water to be discharged to the exterior and react to TiO ₂ UV / TiO ₂ is stored in the system 60, the ballast tank 50 was of the ballast water is discharged to the outside A second sensor unit 31 for measuring the concentration of residual oxidant in the ballast water neutralized by the automatic neutralization apparatus 40, And an outlet 2 for discharging.

The ship ballast water treatment system according to an embodiment of the present invention receives seawater (hereinafter referred to as ship equilibrium) from the outside of the ship. At this time, the external ballast water flows into the ship ballast water treatment system through the inlet (sea water inlet, sea chest) 1 and the piping.

The flow rate measuring unit 20 measures the flow rate of the ballast water flowing through the inlet 2 and transmits the measured flow rate value to the controller 100.

The filter and electrolysis unit 10 sterilizes the ballast water introduced from the outside through a mechanical method and a chemical method.

The filter and electrolytic unit 10 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 2A and 2B and FIGS. 3A to 3D. An electrolysis section 12 including a plurality of electrodes 121 for electrolyzing the incoming ballast water, an electrolysis section 12 for electrolyzing the electrolytic water, And a cover (13) positioned to protect the decomposition part (12).

The inlet and the outlet 11 of the filter and the electrolysis unit 10 are connected to each other through an inlet 112 which is a passage for receiving the ballast water from the outside, and an outlet 111 for discharging the electrolytically treated ship ballast water to the outside.

The cover 13 is fixedly connected to one end of the inflow / outflow opening 11. At this time, when the electrolytic unit cover 13 and the inlet / outlet 11 are fixedly connected, the filter element is located inside the cover 13 and the electrolytic unit 12 is located inside the filter element.

The filter and electrolytic unit 10 includes a fixing plate 152, a filter pressing cover 132, and a filter holder 140. The filter and the electrolytic unit 10 are disposed in the cover 13 of the electrolytic unit 10, A filter housing 131 located inside the filter squeezing cover 132, a plurality of electrode modules 121, an electrode module housing 125 positioned to surround the plurality of electrode modules 121, an electrode module housing 125 A spacer 122 positioned between the plurality of electrode modules 121, a filter pressing spring 151 wrapped around the support 150, and a support member 150, An induction portion 114, and a rotating conductor 113 located inside the inlet /

First, an electrolytic part 12 including a plurality of electrode modules 121 will be described in detail with reference to FIGS. 3A to 3D.

3A and 3B, the electrode module housing 125 is positioned so as to surround the plurality of electrode modules 121. At this time, one end of the electrode module housing 125 is connected to an electrode bus bar, (126).

The electrode module housing 125 also serves as a support for supporting the filter element 130.

The electrode module housing 125 is provided with a backwash pipe 160 for backwashing the filter element 130. The backwash water pipe 160 is formed to have a plurality of reverse water discharge holes 161.

The electrode bus bar 126 is located at two positions in the electrode module housing 125 and is connected to an external rectifier (not shown) to receive current. The electrode bus bar 126 transfers the current received from the rectifier (not shown) to each electrode module 121.

3A and 3B, two electrode bus bars 126 are provided, one electrode bus bar 126 receives a positive current, and the other electrode bus bar 126 ) Should receive a negative current.

A plurality of electrode modules 121 located inside the electrode module housing 125 are stacked along the longitudinal direction of the support 150 and an electrode gap spacer 122 may be located.

The plurality of electrode modules 121 located inside the electrode module housing 125 and receiving current from the electrode bus bar 126 are connected to the inlet / Electrolytically treat the water.

3C, the electrode 121 has a disk shape having a third diameter 121c, and the electrode 121 is formed so as to be pierced by the second diameter 121a in the center of the disk. .

The electrode module 121 is provided with two first grooves 121b which are formed in a semicircular shape along the periphery of the disk. The two first grooves 121b are where the retro-seawater pipe 160 of the electrode module housing 125 passes. Because the countertop pipe 160 is located in the first groove 121b of the electrode module 121 when a plurality of electrode modules 121 are stacked in the electrode module housing 125, And the electrode module 121 is coupled to the inside of the module housing 125.

The electrode module 121 further includes a second groove 121d having a rectangular shape and a third groove 121e positioned to face the second groove 121d.

The third groove 121e has a thin rectangular opening portion in a direction perpendicular to the periphery of the disk, and the third groove 121e further includes a circular open portion between two rectangular open portions At this time, the circular open portion is positioned so as not to be in contact with the periphery of the electrode module 121.

When the electrode module 121 having the second groove 121d and the third groove 121e is coupled to the inside of the electrode module housing 125, the electrode bus bar 126 is connected to the second groove 121d and the third groove 121d, And is positioned to penetrate the groove 121e. Accordingly, the electrode module 121 receives a current from the electrode bus bar 126.

Next, the electrode gap spacer 122 will be described in detail with reference to FIG. 3D. The electrode gap spacer 122 may be located between the electrode module 121 and the electrode module 121 or may be located between the electrode module 121 adjacent the top surface (or bottom surface) of the electrode module housing 125 .

The electrode gap spacer 122 located between the electrode modules 121 is a spacer for inducing the rotation of water and has a circular ring having the first diameter 122a and is connected to the periphery of the ring at regular intervals And a wing 122b formed thereon.

At this time, the distance 122c between one wing 122b and the other wing 122b on the opposite side, that is, the length 122c of the electrode interval spacer 122, And the length (third diameter) 121c.

The first diameter 122a of the electrode interval spacer 122 is longer than the length of the second diameter 121a formed in the electrode 121 shown in FIG.

The electrode gap spacer 122 is provided with the vane 122b so that the electrode gap spacer 122 is rotated by the ballast water that is filtered by the filter element 130 and moves to the electrolysis section 12 . As a result, the ballast water around the electrode module 121 further rotates, so that the efficiency of the electrolytic treatment in the electrode module 121 is increased, and the efficiency of generating the residual oxidant in the ballast water is increased.

Also, by providing the electrode gap spacer 122, the ball balance water subjected to the electrolytic treatment in the electrode module 121 is rotated, thereby removing scale (impurities such as metal oxide) accumulated on the filter element 130 There is an effect that can be done.

The electrode spacer 122 may be formed of an insulating material such as plastic.

Referring again to FIG. 2B, the filter and electrolytic unit 10 will now be described. The filter element 130 is located outside the electrode module housing 125.

The filter element 130 may be a disk filter having the form of a disk. When a plurality of such disk-shaped filter elements 130 are provided, the plurality of filter elements 130 may be stacked outside the electrode module housing 125.

When the plurality of filter elements 130 are stacked and positioned, the filter element 130 is fixed at a predetermined pressure by the compression spring 151. In this case, the disk- As shown in Fig.

The filter element 130 primarily filters the ballast water introduced through the inlet / outlet 11 and filters solids or microorganisms in the range of 50 μm to 100 μm contained in the ballast water.

As described above, since the filter element 130 composed of the disk filter performs the back flushing process using the reverse water pipe 160, the phenomenon of clogging of the dust on the filter wire is permanently generated There is an effect of not doing.

The rotary conductor 113 located inside the inlet / outlet 11 is formed to have an annular shape and rotates in one direction.

As shown in Fig. 2B, the rotating conductor 113 has a portion protruding at regular intervals on one end face. At this time, due to the protruding portion formed on the rotary conductor 113, when the rotary conductor 113 rotates in one direction, the ball balance around the rotary conductor 113 rotates in one direction.

At this time, the solids and microorganisms contained in the ballast water rotating in one direction due to the rotation of the rotating derivative 113 are uniformly distributed in the ballast water, so that the filtering efficiency of the ballast water in the filter element 130 It has the effect of getting better.

The rotating derivative 113 can be rotated by receiving power from an external motor unit (not shown).

The ballast water, which is located around the rotatinginductor 113 and rotates in one direction in accordance with the rotation of the rotatinginductor 113, may be a ballast water inflow from the outside through the inlet 112. [

The channel induction portion 114 is a rubber which is located adjacent to the rotating conductor 113 and is formed of a rubber material. The convex portion of the flow path guide portion 114 faces the opposite direction of the inlet / outlet 11, and the flow guide portion 114 (see FIG. 1) Is directed toward the inlet / outlet (11).

Since the channel guide portion 114 has a convex shape in one direction as described above, the number of ballast bridges descending in the direction of the inlet / outlet 11 from the filter element 130 after completing the filtering and electrolyzing process can be easily reduced And flows to the inlet / outlet 11.

The channel guide portion 114 forms a plurality of slits and the ballast water that has been filtered and electrolyzed through the grooves of the channel guide portion 114 flows to the outlet 111 of the inlet / .

The channel guide portion 114 may be positioned to face the electrode module 121 or vice versa.

For example, when water flowing in the filter and electrolysis section 10 flows from the filter element 130 toward the inlet / outlet port 11, the channel inducing section 114 is connected to the electrode module (not shown) 121).

2B, when the channel guide portion 114 is positioned so as to face the opposite direction to the electrode module 121, the channel guide portion 114 is positioned so as to be misaligned as shown in FIG. 2B, The water flows into the inlet / outlet 11 through the space.

However, as another example, when the filter and the water flowing inside the electrolysis section 10 flow from the inlet / outlet 11 toward the filter element 130 for cleaning the filter element 130, Are adhered to each other, so that the channel guide portion 114 is in an unfolded state. Thus, the flow path through which the filter and water located in the electrolytic unit 10 can flow into the inlet / outlet 11 is blocked. Therefore, the water can be moved only by the backwash pipe.

The filter pressing spring 151 positioned adjacent to the channel guiding portion 114 is pressed and the back pressure of the filter pressing spring 151 is increased due to the pressure difference due to the driving of the filter pressing spring 151. Therefore, And is drawn into the reverse water pipe 160.

At this time, the backwash water led into the reverse water pipe 160 is discharged in the direction of the filter element 130 from the electrode module housing 125 along the reverse water discharge hole 161. As a result, foreign matters such as dust and the like caught in the filter element 130 are cleaned.

The backwash water discharged from the backwash pipe 160 and washed with the filter element 130 is discharged toward the flow guide portion 114 and the backwash water flows along the groove formed in the flow guide portion 114, And is discharged to the outside of the filter and electrolysis section 10. [

As the filter and electrolytic unit 10 have the above configuration, the ballast water introduced from the outside is primarily filtered by the filter element 130, and electrolytically processed from the plurality of electrode modules 121. Therefore, the filter and electrolytic unit 10 can effectively remove solids or microorganisms contained in the ballast water than when using only one of the filter and the electrolytic module.

In addition, since the filter and electrolytic unit 10 perform the electrolysis together with the filter, the ballast water discharged from the filter and electrolysis unit 10 is discharged to the ballast water sterilization standard according to USCG (US Marine Guards) . ≪ / RTI >

Referring to FIG. 1, the ship ballast water treatment system according to an embodiment of the present invention will be described. The first sensor unit 30 is connected to the filter and the electrolysis unit 10, (10) receives the ballast water that has been filtered and electrolyzed, and measures the conductivity, temperature, and total residual oxidant (TRO) concentration of the ship ballast water.

At this time, the first sensor unit 30 bypasses only a part of the ballast water discharged from the filter and the electrolysis unit 10, and can receive the bypassed water.

The first sensor unit 30 is connected to the controller 100 and transmits the conductivity, temperature, and TRO concentration of the ballast water measured by the first sensor unit 30 to the controller 100.

The ballast pipe may be a pipe or a filter connecting the filter and electrolytic unit 10 and the ballast tank 50, and a pipe connecting the electrolytic unit 10 and the first sensor unit 30.

The control unit 100 for generating such a control signal will be described in more detail below.

Referring to FIG. 1, the ballast tank 50 is connected to the first sensor unit 30. At this time, when the first sensor unit 30 is configured to be bypassed from the filter and electrolysis unit 10, the ballast tank 50 is connected to the filter and the electrolysis unit 10.

The ballast tank 50 is a tank for receiving and storing ship ballast water which has been subjected to a ballasting process, which is a process of neutralizing oxidizing substances generated in the electrolysis process and microorganisms from the filtering and electrolysis processes.

The discharge port 2 discharges the ballast water stored in the ballast tank 50 to the outside of the ship. In order to discharge the ballast water stored in the ballast tank 50 to the outside of the ship, The process of neutralization is needed.

Accordingly, the automatic neutralization apparatus 40 includes a neutralizing agent for neutralizing the ballast water stored in the ballast tank 50, and automatically neutralizes the ballast water stored in the automatic neutralization apparatus 40 40) into the dewarcing piping.

As a result, ClO ₂ (chlorine dioxide) or Br ₂ (bromine) remaining in the ballast water stored in the ballast tank 50 is neutralized.

The dewarcing pipe may be a pipe connecting the ballast tank 50 and the discharge port 2 or a pipe connecting the ballast tank 50 and the second sensor unit 31.

The UV / TiO ₂ system 60 is connected to the control unit 100 and can be connected to the dewarcing pipe leading from the ballast tank 50 to the outlet 2.

The UV / TiO ₂ system 60 includes a TiO ₂ coated plate, and irradiates ultraviolet rays (ultraviolet rays) to the ballast water subjected to microbial destruction stored in the ballast tank 50. At this time, OH radicals (hereinafter referred to as "OH radicals") are generated on the surface of the TiO ₂ plate as ultraviolet rays are irradiated on the equilibrium water of the ship, and the OH radicals are present in the ballast water due to OH radicals or regrowth Microorganisms are killed.

At this time, the TiO ₂ coated plate may be formed into a mesh or punch shape.

In addition, since OH radicals are generated due to the reaction of ultraviolet ray and TiO ₂ with oxygen (O ₂ ) generated in the electrolytic process of residual ballast water or electrolytic process of the ballast water, microbial death of the ballast water due to UV / TiO ₂ High efficiency.

Therefore, the UV / TiO ₂ system 60 can effectively kill microorganisms in the ballast water of the dibalating vessel and generate OH radicals using the residual oxidizing material. Therefore, it is necessary to neutralize the ballast water of the dibalzing vessel It is possible to minimize chemicals such as neutralizing agents, and the microbial killing efficiency of the ballast water can be more compatible with the USCG.

The second sensor unit 31 is configured to measure the concentration of residual oxidation material (TRO) in the neutralized ballast water in the ballast tank 50, (TRO) concentration value of the measured de-ballasting vessel equilibrium water to the control unit 100. The control unit 100 determines the concentration of the oxidizing substance,

The control unit 100 includes a flow rate measuring unit 20, a filter and an electrolysis unit 10, a first sensor unit 30, a second sensor unit 31, a UV / TiO ₂ system 60, And is connected to the neutralization treatment device 40. The control unit 100 receives measurement values and the like from the flow measuring unit 20, the first sensor unit 30 and the second sensor unit 31, generates control signals according to the measured values, And to the electrolytic section 10, the UV / TiO ₂ system 60 or the automatic neutralization apparatus 40.

The control unit 100 controls the electrolysis intensity of the filter and the electrolysis unit 10 according to the flow rate value of the ship ballast water received from the flow measurement unit 20, do.

For example, when the flow rate of the ship ballast water received from the flow measuring unit 20 is large, the control unit 100 generates a control signal for controlling the filter and the electrolysis unit 10 to increase the electrolysis intensity The control unit 100 generates a control signal for controlling the electrolysis intensity of the filter and the electrolytic unit 10 to be lowered when the flow rate value of the ballast water delivered from the flow measurement unit 20 is small.

The control unit 100 generates a control signal for controlling the electrolysis intensity of the filter and the electrolysis unit 10 according to the measurement result of the characteristics of the ballast water received from the first sensor unit 30. [

For example, when the conductivity of the ballast water measured by the first sensor unit 30 is higher than the reference value, the controller 100 controls the current flowing through the filter and the electrolytic unit 10 When the conductivity of the ballast water measured by the first sensor unit 30 is lower than the reference value, the controller 100 controls the filter and the electrolytic unit 10, A control signal is generated to control the current application value to be increased in order to increase the electrolysis strength.

The controller 100 controls the UV irradiation amount of the UV / TiO ₂ system 60 in accordance with the residual TRO (residual oxidizing material) concentration value of the dibalacting ship ballast water transmitted from the second sensor unit 31 . For example, when the concentration of the residual oxidizing material in the ballast water of the de-ballasting vessel measured by the second sensor unit 31 is high, the controller 100 controls the UV / TiO ₂ The control unit 100 generates a control signal for controlling the system 60. On the other hand, when the concentration of the residual oxidant in the ballast water of the de-ballasting vessel measured by the second sensor unit 31 is a low value, TiO ₂ system 60 so as to irradiate the UV / TiO ₂ system 60 with a small amount of ultraviolet light.

The controller 100 controls the amount of neutralizing agent input to the automatic neutralization apparatus 40 according to the residual TRO (residual oxidizing substance) concentration value of the dibalacting ship ballast water transmitted from the second sensor unit 31. As an example, when the concentration of the residual oxidant in the ballast water of the de-ballasting vessel measured by the second sensor unit 31 is a high value, the controller 100 controls the automatic neutralization treatment device When the concentration of the residual oxidant in the ballast water of the de-ballasting vessel measured by the second sensor unit 31 is a low value, the control unit 100 generates a control signal for controlling the ship ballast water The control signal for controlling the automatic neutralization processing device 40 is generated so that the neutralizing agent is injected less.

Next, the operation of the ship ballast water treatment system of the present invention will be described with reference to Fig.

As shown in FIG. 4, first, the flow measuring unit 20 measures the flow rate of the ballast water flowing into the ship ballast water treatment system from the outside (S201). When the flow measuring unit 20 bypasses only a part of the ballast water flowing from the outside to measure the flow rate, the flow measuring unit 20 transmits the measured flow rate to the filter and the electrolysis unit 10 (S212) The flow rate measuring unit 20 can measure the flow rate of the ship ballast water flowing into the flow measuring unit 20 from the outside through the filter and electrolysis (S211). At the same time, the measured flow rate is transmitted to the filter and electrolysis unit 10 (S212).

The filter and electrolytic unit 10 receives the ballast water from the outside (or the flow measuring unit 20) and filters the incoming ballast water (S101). At this time, solids foreign matter and microorganisms in the ballast water are filtered using the filter element 130 provided in the filter and electrolysis unit 10, and the dust and dirt trapped in the filter element 130 through the reverse water pipe 160 And so on.

The filter and electrolysis unit 10 electrolyses the ship ballast water primarily filtered by the filter element 130 using a plurality of electrode modules 121 (S102), and supplies the electrolytically processed ship ballast water To the first sensor unit 30 along the pipe (S111).

At this time, the ballast water that has been filtered and electrolyzed by the filter and electrolytic unit 10 is transferred to and stored in the ballast tank 50 along the ballast pipe (S112).

The first sensor unit 30 measures the conductivity, temperature, and TRO (residual oxidant) concentration of the ballast water discharged from the filter and the electrolysis unit 10 (S301) (S3011).

At this time, the ballast water having the ballast water characteristic measured by the first sensor unit 30 is transmitted to the ballast tank 50 and stored in the ballast tank 50 (S3012).

Next, the controller 100 determines the degree of contamination of the ship ballast water according to the characteristic measurement value of the ship ballast water transmitted from the first sensor unit 30 (S1001).

Then, the control unit 100 determines whether the ship ballast water process is in the de-ballasting step (S1002). At this time, if the ship ballast water treatment process is not the de-balusting process, the control unit 100 does not perform a separate step. On the other hand, if it is determined that the ship equilibrium water treatment process is the dewarcing step, the control unit 100 transmits a control signal for controlling the automatic neutralization apparatus 40 to discharge the neutralizing agent to the automatic neutralization apparatus 40 S1012).

At this time, if the ship ballast water treatment apparatus is in the de-ballasting stage, the ballast tank 50 delivers the ballast water to the automatic neutralization apparatus 40 (S501).

Accordingly, the automatic neutralization apparatus 40 discharges the neutralizing agent to the ballast tank 50 and discharges the neutralizing agent to neutralize the ballast water (S401). At this time, the neutralizing agent discharged from the automatic neutralization apparatus 40 (S401) is not directly introduced into the ballast tank 50, but is discharged from the ballast tank 50 to the ballast water outlet 2, .

Then, the UV / TiO ₂ system 60 irradiates ultraviolet rays to the ballast water of the de-ballasting vessel (S501) received from the ballast tank 50 to generate OH radicals to kill the remaining microorganisms (S601).

The dewarning vessel equilibrium water in which the microorganisms have been killed in the UV / TiO ₂ system 60 is transferred to the automatic neutralization apparatus 40 (S611).

Then, the second sensor unit 31 measures the TRO concentration of the neutralized neutralized water in the automatic neutralization apparatus 40 (S311), and transmits the measured TRO concentration to the control unit 100 (S3111).

The control unit 100 receives the measured TRO concentration value from the second sensor unit 31 and determines the measurement result (S1003). The control unit 100 determines whether the control signal for controlling the ultraviolet irradiation intensity of the UV / TiO ₂ system 60, And generates a control signal for controlling the amount of the neutralizing agent discharged from the processing apparatus 40 (S1013).

With this process, the ballast water can be ballasted and de-ballasted efficiently, and the sterilization standard of the treated ballast water meets the USCG standard.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

1: Seawater inlet 2: Ballast water outlet
10: filter and electrolysis unit 20: flow rate measurement unit
30: first sensor part 31: second sensor part
40: automatic neutralization device 50: ballast tank
60: UV / TiO ₂ system 100:
121: electrode module 122: electrode gap spacer
125: electrode module housing 126: electrode bus bar

Claims (5)

A filter and an electrolytic unit for receiving the ballast water from the outside and filtering and electrolyzing the ballast water,
A first sensor unit for measuring a seawater characteristic of the ballast water having passed through the filter and the electrolysis unit and outputting a measured value of the seawater characteristic,
A control unit for receiving the measured value of the seawater characteristic from the first sensor unit and determining the degree of contamination of the ballast water according to the measured value of the seawater characteristic, ,
TiO ₂ -containing plate, which generates OH radicals from the interaction of ultraviolet light and TiO ₂ , and which sterilizes the residual microorganisms contained in the ballast water that the OH radical has passed through the filter and the electrolytic unit, TiO ₂ system,
An automatic neutralization apparatus having a neutralizing agent and neutralizing the ballast water having passed through the filter and the electrolytic unit by receiving the neutralizing agent discharge signal from the controller,
A second sensor unit for measuring a total residual oxidant (TRO) concentration of the ballast water neutralized in the automatic neutralization apparatus and transmitting the result of the total residual oxidant concentration measurement to the control unit,
Including the
Wherein the controller generates the neutralizing agent discharge control signal for controlling the neutralizing agent discharge amount discharged from the automatic neutralization apparatus according to the measurement result of the total residual oxidant concentration received from the second sensor unit. The method of claim 1,
Wherein the filter of the filter and electrolysis unit is a disk filter. The method of claim 1,
Wherein the filter and the electrolytic unit are formed by stacking a plurality of electrode modules each having a circular plate shape. The method of claim 1,
Wherein the seawater characteristic measured by the sensor unit is any one of a conductivity, a temperature, and a total residual oxidizing material concentration. The method of claim 1,
Wherein the TiO ₂ coated plate of the UV / TiO ₂ system is formed of either a mesh structure or a perforated plate shape.

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