WO2019132161A1

WO2019132161A1 - System for removing underwater harmful substances by using activated carbon

Info

Publication number: WO2019132161A1
Application number: PCT/KR2018/010044
Authority: WO
Inventors: 김창준; 최기영; 김영일; 정창수; 김혜은; 이문진; 오상우
Original assignee: 한국해양과학기술원
Priority date: 2017-12-29
Filing date: 2018-08-30
Publication date: 2019-07-04
Also published as: KR20190081468A

Abstract

A system for removing underwater harmful substances by using activated carbon, according to the present invention, can comprise: a detection apparatus, which comprises a pulverization unit for pulverizing activated carbon into a particle size of 0.18-0.91 mm, a spray unit for spraying the activated carbon having been pulverized, and a power supply unit, and measures the amount of underwater pollution; and a controller for controlling the power supply unit. According to one embodiment of the present invention having the elements, the adsorption performance of the activated carbon is used such that a halogenated organic solvent precipitated in water during HNS accidents is greatly removed.

Description

System for removing harmful substances in water using activated carbon

The present invention relates to a system for removing harmful substances in water using activated carbon, and more particularly, to a system for removing harmful substances in water using active carbon to remove harmful substances by pulverizing activated carbon and spraying the same in water or on a water surface.

In general, HNS stands for hazardous and noxious substances. The OPRC-HNS Protocol defines substances that are substances other than oil that enter the marine environment as substances that are harmful to human health, marine living resources or life forms, which impair comfort or interfere with the use of other legitimate seas.

The increase in international demand for chemicals used in a wide range of industries leads to a rapid increase in the marine trade of chemicals, while the marine trade of chemicals is increasing year by year. Often chemical spills due to marine trade accidents are difficult to treat, depending on the wide variety of chemicals and their various characteristics.

HNS is accompanied by tremendous loss of life and property in case of leakage, so it is important to prepare for thorough management and quick and accurate response in the event of an accident. The Maritime Police Agency has developed and operates an HNS accident response system and an incident response manual that provides real-time on-site commander, security guard and rescue personnel on hazard information, hazard area prediction, and resolution methods for hazardous and hazardous material accidents .

However, there are many kinds of chemical substances that leak during HNS accident, and there are various behaviors such as evaporation, dissolution, floating, sedimentation, and specific treatment methods according to the behavior of each chemical substance are needed. In particular, when HNS such as halogenated organic solvents is introduced into the marine environment, it is not soluble in seawater due to hydrophobicity and large density, and can not be collected because it sinks and spreads to the sea floor. Until now, when HNS is spilled in the sea, it is common to use water spraying of about 100 times the amount of water to neutralize or spray soil or non-combustible material.

On the other hand, activated carbon is a collection of well-developed amorphous carbon which is made of wood, lignite, anthracite and coconut husk as well as fine pores and has a large internal surface area due to well formed fine pores of molecular size during the activation process. Adsorbent.

[Prior Art Literature]

[Patent Literature]

Korean Patent Publication No. 10-20100069335

Korean Patent No. 10-1670728

It is an object of the present invention to provide a system for effectively removing HNS spilled in the sea, particularly a system for removing harmful substances in water, which removes precipitated halogenated organic solvents, .

In order to achieve the above-mentioned object, the present invention provides a process for producing activated carbon, which comprises a crushing unit which is installed on one side of a ship and crushes activated carbon into particles having a predetermined size, a crushing unit connected to the crushing unit, And a power supply unit for supplying power to the crushing unit and the injection unit.

The detection unit may include a detection unit that measures the degree of contamination depending on the harmful substances spilled into the water, and a controller that activates the power supply unit when the contamination level measurement value of the detection unit is equal to or greater than a predetermined reference value.

The crushing unit may further include an inlet portion into which the activated carbon flows, a crushing portion into which the activated carbon flowing into the inlet portion is crushed, an outlet portion through which the crushed activated carbon is moved to the injection unit, And may include a screen portion having a lattice shape.

Further, the screen portion may be detached from the crushing unit, and one side of the screen portion may protrude outside the crushing unit.

The apparatus may further include a rotary connector for connecting the crushing unit and the injection unit, a rotary shaft connected to the lower portion of the crushing unit, and a fixing unit connected to a lower portion of the rotary shaft to fix the injection unit.

The spray unit may further include a spray nozzle unit detachably coupled to one side of the spray unit.

In addition, it may further comprise a water jet which can be installed on the ship and which sucks and discharges water in the water.

The pulverizing unit may pulverize the activated carbon into particles having a size of 0.18 mm or more and 0.91 mm or less.

The system for removing harmful substances in water using activated carbon according to the present invention is advantageous for the removal of halogenated organic solvents precipitated in water at the time of HNS leakage using the adsorption property of activated carbon.

In addition, the grinding unit and the spraying unit can be automatically operated according to the detection of the pollutant.

In addition, since the injection angle and injection direction are controlled by the configuration of the rotary shaft, the rotary connector, and the spray nozzle, various HNS accident situations can be coped with.

1 is a schematic view schematically showing a system for removing harmful substances in water using activated carbon according to an embodiment of the present invention.

2 is a detailed view showing a cross section of a crushing unit and a spraying unit according to an embodiment of the present invention.

3 is a block diagram illustrating a detection unit, a controller, and a power supply unit according to an embodiment of the present invention.

4 is a schematic view showing a system for removing harmful substances in water using activated carbon including a water jet according to an embodiment of the present invention.

5 is a graph showing the test results of " Adsorption performance test according to particle size of activated carbon. &Quot;

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It should be understood, however, that the embodiments according to the concepts of the present invention are not intended to be limited to any particular mode of disclosure, but rather all variations, equivalents, and alternatives falling within the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the "inclusive" or "gajida" and the terms are staking the features, numbers, steps, operations, elements, parts or geotyiji to be a combination thereof specify the presence, of one or more other features, integers , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Hereinafter, the present invention will be described in detail.

FIG. 1 is a schematic view of a system for removing harmful substances in water using activated carbon according to an embodiment of the present invention. FIG. 2 is a schematic view of a grinding unit 100 and a spraying unit 200 according to an embodiment of the present invention. Fig. 5 is a graph showing the test results of " Adsorption performance test according to particle size of activated carbon. &Quot;

The system for removing harmful substances from water using activated carbon according to the present invention is a system for removing HNS (Hazardous and Noxious Substances) by applying pulverized activated carbon widely in the sea area. Especially, It is a system for aggregating and removing organic solvents.

Referring to FIG. 1, the system for removing harmful substances in water using activated carbon according to the present invention comprises a crushing unit 100 for crushing activated carbon into particles of predetermined size, which can be installed on one side of a ship, And a power supply unit 300 for supplying power to the crushing unit 100 and the spraying unit 200. The spraying unit 200 is connected to the crushing unit 100,

The pulverizing unit 100 is an apparatus for pulverizing solidified activated carbon to a predetermined particle size. In one embodiment of the present invention, the pulverizing unit activated carbon may be pulverized to a particle size of 0.18 mm or more and 0.91 mm or less.

The upper limit of the activated carbon particle size is derived from Test Example 1 below.

Test Example 1: Adsorption performance test according to particle size of activated carbon.

Chloroform was eluted in a glass column tube containing 10 g of activated carbon with different particle sizes. Chloroform was gradually eluted from 5 mL to 20 mL, and the eluate was identified. The results are shown in FIG. The x-axis of the graph shown in Fig. 5 represents the eluent of chloroform, and the y-axis represents the capacity of chloroform depending on the particle size of the activated carbon.

Referring to FIG. 5, in Example 1, 10 g of activated carbon having a particle size of 0.45 mm or more and 0.91 mm or less is capable of adsorbing 15 mL or less of chloroform, 10 g of activated carbon having a particle size of 2 mm in Example 2 is 7.5 mL or less chloroform can be adsorbed. In Example 3, activated carbon having a particle size of 2.5 mm or more and 5 mm or less can adsorb chloroform of 5 mL or less.

From the test results, the smaller the particle size of the activated carbon, the larger the adsorption performance.

From the above test results, it is preferable that the activated carbon particle size in which the water content of chloroform is remarkably increased is 0.91 mm or less.

The lower limit of the activated carbon particle size is a result of reflecting an embodiment of the present invention. When the activated carbon injected from the injecting unit 200 is injected onto the water surface, the activated carbon having a particle size smaller than 0.18 mm among the activated carbon injected is greatly influenced by wind and the like, Is difficult. In addition, when the activated carbon is sprayed on the sea surface, it is difficult to smoothly settle the water on the sea surface depending on the water surface tension. It is preferable that the particle size of the activated carbon injected from the injection unit 200 is 0.18 mm or more.

2, the crushing unit 100 includes an inlet 110 through which activated carbon flows, a crushing unit 120 through which activated carbon flowing into the inlet 110 is crushed, a crushing unit 120 A discharge unit 130 in which the pulverized activated carbon is transferred to the injection unit 200 and a grid screen unit 150 provided in the pulverizing unit 120 or the discharge unit 130 have.

The inflow part 110 may be formed to be inclined downward and protrude upward from the crushing unit 100.

A variety of known means and configurations can be used as the crushing unit 120 for crushing and crushing the activated carbon. In an embodiment of the present invention, the crushing unit 120 is provided with a plurality of crushing rollers 121 (not shown) on its upper portion and one or more crushing rollers 122 (not shown) on its lower portion. The activated carbon flows between the plurality of the crushing rollers 121 and is compressed as the plurality of crushing rollers 121 rotate in different directions and passes between the crushing rollers 121. The activated carbon passing between the crushing rollers 121 rotates the crushing roller 122 between the crushing roller 122 and the outer wall surrounding the crushing roller 122 to have a particle size of 0.45 mm or more and 0.91 mm or less .

The activated carbon having the particle size is transferred to the injection unit 200 through the discharge portion 130.

The grinding unit 120 or the discharge unit 130 may include a screen unit 150. The screen unit 150 may have a lattice shape and a mesh size of 20 to 40. The mesh size is the number of lines formed within one inch. The 20 size means that 20 lines are provided within 1 inch, and the 40 size means that 40 lines are provided within 1 inch.

The screen unit 150 is detachably coupled to the crushing unit 100 and one side of the screen unit 150 may protrude to the outside of the crushing unit 100. According to an embodiment of the present invention having the above-described structure, activated carbon having a particle size of 0.91 mm or more is filtered on the screen unit 150, The activated carbon particles may enter the grinding unit 100 again or be located in an external space.

A first driving motor 160 for operating the crushing roller 121 and the crushing roller 122 may be provided at one side of the crushing unit 100.

The injection unit 200 is connected to the crushing unit 100 and injects pulverized activated carbon into water or water in the crushing unit 100. In an embodiment of the present invention, the injection unit 200 is provided at a lower part of the crushing unit 100, and a propeller 250 and a propeller 250 for operating the propeller 250 are installed at one side of the injection unit 200 2 drive motor 240 may be provided. Activated carbon pulverized in the pulverizing unit 100 is transferred to the injection unit 200 and the activated carbon is injected outside the injection unit 200 in accordance with rotation of the propeller 250. However, the above-described configuration is only an embodiment of the present invention, and the configuration, means, and the like of the injection unit 200 may be variously modified within the object of the present invention.

The spray unit 200 may further include a spray nozzle unit 260 detachably coupled to one side of the spray unit 200.

The injection nozzle unit 260 may be injected through the injection nozzle unit 260 when activated carbon is injected from the injection unit 200. The structure and shape of the injection nozzle unit 260 , The position may vary according to the installation purpose of the injection unit 200 and the installation environment. In one embodiment of the present invention, the injection nozzle unit 260 is formed to protrude to the rear side of the ship, and the injection angle of the activated carbon can be adjusted according to the shape of the injection nozzle unit 260.

A rotary connector 210 connecting the crushing unit 100 and the injection unit 200, a rotary shaft 220 connected to a lower portion of the injection unit 200, And a fixing unit 230 connected to a lower portion of the main body 200 to fix the injection unit 200.

The rotary connector 210 may be connected to the crushing unit 100 and the lower part may be connected to the injection unit 200. The rotary connector 210 may be connected to the crushing unit 100 or the injection unit 200, As shown in Fig. In one embodiment, the rotary connector 210 is divided into an upper connector and a lower connector. In the connecting position of the upper connector and the lower connector, the diameter of the upper connector is larger than the diameter of the lower connector, As shown in FIG.

The rotation shaft 220 is connected to a lower portion of the injection unit 200 and the injection unit 200 is rotatable about the rotation axis 220 in the left and right directions. The fixing unit 230 is provided below the rotation shaft 220 to fix the injection unit 200.

The rotating connector 210, the rotating shaft 220 and the fixing portion 230 are designed to rotate in the left and right directions of the crushing unit 100 and the spraying unit 200, .

The power supply unit 300 is connected to the first driving motor 160 and the second driving motor 240 and supplies power to the first driving motor 160 and the second driving motor 240. The power supply unit 300 may be an energy supply means such as a generator connected to the first drive motor 160 and the second drive motor 240. The first drive motor 160 and the second drive motor 240, respectively.

3 is a block diagram showing a detection unit 400, a controller 500, and a power supply unit 300 according to an embodiment of the present invention.

Referring to FIG. 3, the system for removing harmful substances in water using activated carbon according to the present invention includes a detection unit 400 for measuring the degree of contamination due to harmful substances spilled in water, And a controller 500 for activating the power supply unit 300 when the value is equal to or greater than a preset reference value.

The detection unit 400 refers to a device, a facility, a sensor, and the like for detecting the outflow situation of the harmful substances, the degree of outflow, the kind of the harmful substances, and the like. The detection unit 400 may be installed at sea or on a ship, and may be replaced with a satellite. In addition, the detection unit 400 may be a chemical experiment equipment or an apparatus installed apart from the crushing unit 100 and the injection unit 200, and various known mechanisms for detecting the harmful substances may be utilized.

The controller (500) activates the power supply unit (300) according to the measured value of the detection unit (400). As an example, the detection unit 400 may be a device or mechanism for detecting a halogenated organic solvent in a sea area, and transmits a detection signal to the controller 500 when detecting the halogenated organic solvent in the detection unit 400 , The controller (500) activates the power supply unit (300). With this configuration, the activated carbon can be automatically applied to a specific contaminant.

4 is a schematic view showing a system for removing harmful substances in water using activated carbon including a water jet 600 according to an embodiment of the present invention.

Referring to FIG. 4, the water jet apparatus 600 may further include a water jet 600 that can be installed on a ship and sucks and discharges water from the water as an embodiment of the present invention.

The water jet 600 may be a propulsion device of a ship mounted on a ship. The water jet 600 is a device that sucks water in the water and ejects the water sucked from the rear of the ship to obtain propulsive force. When water is jetted from the water jet 600 onto the surface of the water, Water is sprayed on the activated carbon sprayed from the air, and the active carbon is prevented from scattering in the air.

In addition, when the water jet in the water jet 600 is performed under water, the activated carbon is dispersed under water by the force of water ejected from the water jet 600, so that it can be applied to a wider range. In this case, the jet nozzle unit 260 may be formed to be inclined downward toward a direction in which water is jetted from the water jet 600.

When the water jet 600 is mounted on a ship, the water jet apparatus 600 may have the same configuration and operation principle as a known water jet propulsion apparatus. In one embodiment, the water jet 600 includes a pump connected to an engine of a ship, The water in the water is sucked into the suction port provided at the bottom of the ship and the water is sprayed to the discharge port provided at the tail of the ship through a guide pipe installed inside the ship.

[Description of Symbols]

100: crushing unit 110:

120: crushing section 121: crushing roller

122: crushing roller 130:

150: screen unit 160: first drive motor

200: injection unit 210: rotary connector

220: rotation shaft 230:

240: second drive motor 250: propeller

260: injection nozzle part

300: Power supply unit 400: Detection unit

500: Controller 600: Waterjet

According to the present invention, there is provided a method for producing a water-soluble organic solvent, which comprises a crushing unit, a spraying unit, and a power supply unit installed on a ship and pulverizing activated carbon to a predetermined particle size, Can be removed.

Claims

A crushing unit that can be installed at one side of the ship and crushes activated carbon into particles of a predetermined size;

An injection unit connected to the crushing unit and injecting the activated carbon crushed in the crushing unit into water or water; And

And a power supply unit for supplying power to the crushing unit and the spraying unit.
The method according to claim 1,

A detection unit for measuring the degree of contamination due to the harmful substances spilled into the water; And

And a controller for activating the power supply unit when the contamination level measurement value of the detection unit is equal to or greater than a preset reference value.
The method according to claim 1,

The crushing unit includes an inlet through which activated carbon flows;

A crushing part for crushing the activated carbon flowing into the inflow part;

A discharge portion in which the pulverized activated carbon in the crushing portion is transferred to the injection unit; And

And a lattice-shaped screen unit provided in the crushing unit or the discharge unit.
The method of claim 3,

Wherein the screen unit is detached from the crushing unit, and one side of the screen unit protrudes outside the crushing unit.
The method according to claim 1,

A rotary connector connecting the crushing unit and the injection unit;

A rotating shaft connected to a lower portion of the crushing unit; And

And a fixing unit connected to a lower portion of the rotation shaft to fix the injection unit.
The method according to claim 1,

Wherein the spray unit further comprises a spray nozzle unit detachably coupled to one side of the spray unit.
The method according to claim 1,

And a water jet which can be installed on the ship and which sucks and discharges water in the water.
The method according to claim 1,

Wherein the pulverizing unit pulverizes activated carbon into particles having a size of 0.18 mm or more and 0.91 mm or less.