WO2005105675A1

WO2005105675A1 - Water sterilizing purified equipment using photocatalyst and ultraviolet lamp and purified system

Info

Publication number: WO2005105675A1
Application number: PCT/KR2005/001257
Authority: WO
Inventors: Tae Gyu Kim
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-30
Filing date: 2005-04-29
Publication date: 2005-11-10
Anticipated expiration: 2006-10-30
Also published as: KR20050105632A; KR100732504B1

Abstract

The present invention relates to a water sterilizing purified apparatus using a photocatalyst according to the present invention, wherein the apparatus comprises an inlet frame 110 having an inlet pipe 111 into which a polluted and waste water is flowed; an outlet frame 120 having an outlet pipe 121 from which a purified water is discharged; a main tube 130 installed between the inlet frame 110 and the outlet frame 120; a photocatalyst coating plate unit 140 having a plurality of coating plates which are installed into the main tube 130 and have a photocatalyst coated thereon and being arranged to form a flowing path of the polluted and waste water; and a ul¬ traviolet ray generating means 150 for irradiating a ultraviolet ray into the a photocatalyst coating plate unit 140.

Description

Description WATER STERILIZING PURIFIED EQUIPMENT USING PHOTOCATALYST AND ULTRAVIOLET LAMP AND PURIFIED SYSTEM Technical Field

[1] The present invention relates to a water sterilizing purified apparatus capable of effectively treating a polluted and waste water using a photocatalyst and a water sterilizing purified system equipped with the apparatus. Background Art

[2] The "photocatalyst(TiO2)" is a material that generates a catalyst reaction by an irradiated light such as ultraviolet (UN) ray, and effectively removes pollution materials by oxidating/decomposing various kind of pollution materials to be contacted thereto. The photocatalyst is able to avoid the second pollution by completely oxidating/decomposing the pollution materials, treat the pollution material in a liquid phase and a gaseous phase, and can be treated at the high temperature/pressure and low temperature. The photocatalyst meets a biochemical oxygen demand(BOD), chemical oxygen demand(COD), chromaticity, settleable solids(SS) as well as has an excellent deodorization. Accordingly, the using scope of the photocatalyst is extended over the industrial field and actual practical life field such as the removal of heavy metals, the removal of nobiodegradable organics, the sterilization of various kinds of mi- croganism, etc. Disclosure of Invention Technical Problem

[3] The problems in conventional techniques are that the efficiency of the photocatalyst is very low and that it is difficult to collect a powder catalyst. Technical Solution

[4] The present invention is contrived in view of the foregoing problems and is objected to provide a water sterilizing purified apparatus capable of effectively purifying a polluted and waste water using the function of photocatalyst.

[5] In order to achieve the above object, a water sterilizing purified apparatus capable of effectively treating the polluted and waste water using a photocatalyst according to the present invention comprises an inlet frame having an inlet pipe into which the polluted and waste water is flowed; an outlet frame having an outlet pipe from which a purified water is discharged; a main tube installed between the inlet frame and the outlet frame; a photocatalyst coating plate unit having a plurality of coating plates which are installed into the main tube and have a photocatalyst coated thereon and being arranged to form a flowing path of the polluted and waste water; and a ultraviolet ray generating means for irradiating a ultraviolet ray into the photocatalyst coating plate unit. A sub tube is installed into the main tube to penetrate through the photocatalyst coating plate unit. The ultraviolet generating means consists of a plurality of first ultraviolet ray lamps installed on the outer side of the main tube and a second ultraviolet ray lamp installed into the sub tube. There is further included a reflecting plate for reflecting a ultraviolet ray generated from the first ultraviolet ray lamps into the photocatalyst coating plate unit.

[6]

[7] According to the present invention, the photocatalyst coating plate unit may consist of a first coating plate having a plurality of first holes positioned to be symmetrical to each other in a predetermined radius from the center thereof and a second coating plate having a plurality of second holes positioned to be symmetrical to each other in a radius different from that of the first hole, wherein the first coating plate and the second coating plate are arranged alternately each other.

[8] According to the present invention, the photocatalyst coating plate unit may consist of a first coating plate having a first hole positioned at its one side and a second coating plate having a second hole positioned at the opposite direction to the first hole, wherein the first hole of the first coating plate is positioned above the second hole of the second coating plate.

[9] According to the present invention, a embossing is formed on the surface of the above coating plates in order to increase the contacting area with the polluted and waste water. Brief Description of the Drawings

[10] Figure 1 is a perspective view showing a first embodiment of a water sterilizing purified apparatus using a photocatalyst according to the present invention; [11] Figure 2 is a sectional view taken along the line H-H' of the Figure 1 ;

[12] Figure 3 is a sectional view taken along the line IH-III' of the Figure 1 ;

[13] Figure 4 is a view showing a first coating plate of the photocatalyst coating plate unit of Figure 3; [14] Figure 5 is a view showing a second coating plate;

[15] Figure 6 is a view showing a flow of a treated water in Figure 3;

[16] Figure 7 is a view showing the state that a ultraviolet ray is irradiated dimensionally to the first and second coating plates in Figure 3; [17] Figure 8 is a view showing the state that an embossing is formed on the first and second coating plates in Figure 3; [18] Figure 9 is a view showing the state a first ultraviolet lamp and a reflecting plate were removed in Figure 3;

[19] Figure 10 is a partial side view of a second embodiment of a water sterilizing purified apparatus using a photocatalyst according to the present invention;

[20] Figure 11 is a view showing a first coating plate of the photocatalyst coating plate unit of Figure 10;

[21] Figure 12 is a view showing a second coating plate;

[22] Figure 13 is a view showing a flow of a treated water in Figure 10;

[23] Figure 14 is a partial side view of a third embodiment of a water sterilizing purified apparatus using a photocatalyst according to the present invention; and

[24] Figure 15 is a view showing a water sterilizing purified system employing the first, second and third embodiments of a water sterilizing purified apparatus using a photocatalyst according to the present invention. Mode for the Invention

[25] Now, the water sterilizing purified apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

[26] Figure 1 is a perspective view showing a first embodiment of a water sterilizing purified apparatus using a photocatalyst according to the present invention, Figure 2 is a sectional view taken along the line H-H' of the Figure 1, Figure 3 is a sectional view taken along the line IH-III' of the Figure 1, Figure 4 is a view showing a first coating plate of the photocatalyst coating plate unit of Figure 3, Figure 5 is a view showing a second coating plate, Figure 6 is a view showing a flow of a treated water in Figure 3, Figure 7 is a view showing the state that a ultraviolet ray is irradiated dimensionally to the first and second coating plates in Figure 3, Figure 8 is a view showing the state that an embossing is formed on the first and second coating plates in Figure 3, and Figure 9 is a view showing the state a first ultraviolet lamp and a reflecting plate were removed in Figure 3.

[27] As shown, a first embodiment 100 of the water sterilizing purified apparatus using a photocatalyst according to the present invention comprises an inlet frame 110 having an inlet pipe 111 into which a polluted and waste water is flowed; an outlet frame 120 having an outlet pipe 121 from which a purified water is discharged; a main tube 130 installed between the inlet frame 110 and the outlet frame 120; a photocatalyst coating plate unit 140 having a plurality of coating plates which are installed into the main tube 130 and have a photocatalyst coated thereon and being arranged to form a flowing path of the polluted and waste water; and a ultraviolet ray generating means 150 for irradiating a ultraviolet ray into the a photocatalyst coating plate unit 140. A sub tube 135 is installed into the main tube 130 to penetrate through the photocatalyst coating plate unit 140. Further, the inlet frame 110 and the outlet frame 120 are fixedly positioned by a plurality support 104 penetration through the edges of them.

[28] Each end of the inlet pipe 111 and the outlet pipe 121 has a flange structure so that they can easily coupled and decoupled to other pipes.

[29] The main tube 130 and the sub tube 135 are preferably of a transparent material so that the ultraviolet ray is well passed through and may be implemented as, for example, a quartz tube or a PFA tube.

[30] The photocatalyst coating plate unit 140 is arranged to form a flowing path for a polluted and waste water inside the main tube 130 and consists of a plurality of coating plates in which each surface thereof is coated with photocatalyst and through which the sube tube 35 is penetrated. The coating plates may consist of a first coating plate 141 having a plurality of first holes 141a positioned to be symmetrical to each other in a predetermined radius from the center thereof and a second coating plate 142 having a plurality of second holes 142a positioned to be symmetrical to each other in a radius different from that of the first hole. The first coating plate 141 and the second coating plate 142 are fixed at regular intervals.

[31] The first coating plate 141 and the second coating plate 142 are realized by coating a photocatalyst on a circular, non-corrosive metal plate such as a stainless and the photocatalyst coating plate unit 140 is realized by arranging them at regular intervals.

[32] Meanwhile, as shown in Figure 8, by forming embossing 141b' and 142b' on the first and second coating plates 141' and 142' of the photocatalyst coating plate unit 140 ' , the contacting area with the polluted and waste water can be more widen.

[33] The ultraviolet generating means 150 generates a ultraviolet ray for causing a photocatalyst reaction in the photocatalyst coating plate unit and includes a plurality of first ultraviolet ray lamp 151 installed outside the main tube 130 and a second ultraviolet ray lamp 152 installed inside the sub tube 135. A reflecting plate 160 is installed outside the first ultraviolet ray lamp 151 and reflects a ultraviolet generated from the first ultraviolet ray lamp 151 into the photocatalyst coating plate unit 140. The first ultraviolet ray lamp 151 generates ultraviolet ray of 253.7nm, while the second ultaviolet ray lamp 152 genetrates ultraviolet of 360nm.

[34] If the degree of the polluted and waste water to be treated is not excessive, a relative simple structure can be realized as shown in Figure 9. In this case, the first ultraviolet ray lamp 151 and the reflecting plate 160 is not required.

[35]

[36] In the above structure, if the polluted and waste water is flowed into the inlet pipe 111, the water is discharged through the photocatalyst coating plate unit 140 and the outlet pipe 121 to the outside. Since the first hole 141a formed on the first coating plate 141 and the second hole 142a formed on the second coating plate 142 are arranged at the first coating plate 141 and the second plate 142, respectively so as to cross each other, the water is discharged through the first coating plate 141 and the second coating plate 142, flowing in whirls. In this course, the time when the water contacts with the photocatalyst coating plate unit 140 becomes substantially long and the contacting areas between the first coating plate and the second coating plate are increased.

[37] If the ultraviolet ray in the first and second ultraviolet ray lamps 151 and 152 is generated, this ray penetrates through the main tube 130 and the sub tube 135 and is irradiated dimensionally to the first and second coating plates 141 and 142 as shown in Figure 7. Then, the water contacted with the first and second coating plates 141 and 142 is oxidated and a fine foreign substance inside the water is decomposed, thereby producing a clean water by the purification reaction.

[38] By means of the above process, the polluted and waste water is purified to produce the clean water and then is discharged through the outlet pipe 121 in the outlet frame 120 to the outside.

[39] Now, a second embodiment of water sterilizing purified apparatus using a photocatalyst according to the present invention will be described.

[40] Figure 10 is a partial side view of a second embodiment of a water sterilizing purified apparatus using a photocatalyst according to the present invention, Figure 11 is a view showing a first coating plate of the photocatalyst coating plate unit of Figure 10, Figure 12 is a view showing a second coating plate, and Figure 13 is a view showing a flow of a treated water in Figure 10. The same reference numenrals as in the first embodiment are the same members having the same function.

[41] The difference of the second embodiment 200 of a water sterilizing purified apparatus using a photocatalyst from the first embodiment is that the photocatalyst coating plate unit 240 includes a first coating plate 241 having a first hole 241a formed one side thereof and a second coating plate 242 having a second hole 242a formed at the opposite direction to the first hole 241a. The first hole 241a of the first coating plate 241 is positioned above the second hole 242a of the second coating plate 242 and is arranged to be inclined to one side as shown.

[42] In this case, as shown in Figure 13, the polluted and waste water is flowed through the first hole 241a of the first coating plate positioned on the upper portion and then to the second hole 242a of the second coating plate 242 positioned on the lower portion. Therefore, the contacting area between the first coating plate 241 and the second coating plate 242 is increased and the staying time thereon becomes long, resulting in more effective purification.

[43] Now, a third embodiment of water sterilizing purified apparatus using a photocatalyst according to the present invention will be described.

[44] Figure 14 is a partial side view of a third embodiment of a water sterilizing purified apparatus using a photocatalyst according to the present invention. The same reference numenrals as in the first and second embodiments are the same members having the same function.

[45] The difference of the third embodiment 300 of a water sterilizing purified apparatus using a photocatalyst from the first and second embodiments is that the photocatalyst coating plate unit 340 in the third embodiment has its coating plates formed to have a generally spiral shape. In this case, the polluted and waste water is flowed through the coating plates with a spiral movement. Accordingly, by using the coating plates having such spiral structure, the water can be rotated with high speed vortex motion.

[46] It should be noted that in the second and third embodiments of a water sterilizing purified apparatus using a photocatalyst, an embossing can be formed on all coating plates, as shown in the first embodiment.

[47] Although the structure was illustrated briefly for clarity, the position of the coating plates may be fixed by forming holes on the edges of the coating plates and then allowing a supporting stand to be penetrated through the holes. This purpose is to prevent the position of the coating plates from being varied due to a water pressure being generated when the water is flowing.

[48] Figure 15 is a piping drawing when employing the first, second and third embodiments of a water sterilizing purified apparatus using a photocatalyst according to the present invention. The same reference numenrals as in the first, second and third embodiments are the same members having the same function.

[49] The water sterilizing purified apparatus using a photocatalyst may be used solely. Alternatively, two or more water sterilizing purified apparatuses may be used as shown in Figure 13 and in this case, it is possible to effectively purify more much waste water. To do this, several water sterilizing purified apparatuses are piping-connected. In the present embodiment, two water sterilizing purified apparatuses using a photocatalyst are used for the illustration purpose. The two water sterilizing purified apparatuses are connected to a main inlet pipe 170 and a main outlet pipe 180 at the same time.

[50] On the main inlet pipe 170 are installed a first main valve 171 for controlling the overall flowing of the polluted and waste water, a plurality of chemical material control valves 172 for controlling the inlet and outlet of a predetermined chemical material, a first cleaning valve 173a for controlling the outlet of a cleaning water. The chemical material control valves 172 are connected to pipes which supply ozone, penton or hydrogen peroxide in order to increase the efficiency of purification depending on the nature of the polluted and waste water to be treated and thus control the inlet and outlet of the chemical materials

[51] Also, on the main outlet pipe 180 are installed a second main vlave 181 for controlling the flowing of the purified water, a second cleaning valve 173a for controlling the inlet of a cleaning water. Control valves 174 and 184 for seperately controlling the flowing of the polluted and waste water introduced into the respective water sterilizing purified apparatus are installed into the pipe between the water sterilizing purified apparatuses 100, 200 and 300 and the main inlet pipe 170 and installed into the pipe between the water sterilizing purified apparatuses 100, 200 and 300 and the main outlet pipe, respectively.

[52] An ozone and bubble generator 193 is installed between the first cleaning valve 173a and the second cleaning valve 173b in order to remove pollutive materials attached to a tube or quartz tube of the water sterilizing purified apparatuses 100, 200 and 300.

[53] Although the present invention was described with reference to the embodiments shown in the drawings, the embodiments are only illustrative and various variations and other embodiments equivalent thereto will be apparent to those skilled in the art. Industrial Applicability

[54] As described above, the water sterilizing purified apparatus using photocatalyst according to the present invention can realize more effective and maintenence-easy treatment of a polluted and waste water by installing a photocatalyst coating plate unit, which consists of coating plates coated with a photocatalyst, into the tube through which a polluted and waste water is penetrated and arranging a ultraviolet ray lamp, which irradiates a ultraviolet ray into the a photocatalyst coating plate unit, into the inside and outside of the tube.

Claims

[1] A water sterilizing purified apparatus using a photocatalyst comprising: an inlet frame having an inlet pipe into which the polluted and waste water is flowed; an outlet frame having an outlet pipe from which a purified water is discharged; a main tube installed between the inlet frame and the outlet frame; a photocatalyst coating plate unit having a plurality of coating plates which are installed into the main tube and have a photocatalyst coated thereon and being arranged to form a flowing path of the polluted and waste water; and a ultraviolet ray generating means for hradiating a ultraviolet ray into the photocatalyst coating plate unit.

[2] The water sterilizing purified apparatus using a photocatalyst according to claim 1, wherein a sub tube is installed into the main tube to penetrate through the photocatalyst coating plate unit; and the ultraviolet generating means consists of a plurality of first ultraviolet ray lamps installed on the outer side of the main tube and a second ultraviolet ray lamp installed into the sub tube.

[3] The water sterilizing purified apparatus using a photocatalyst according to claim 2, further comprising a reflecting plate for reflecting a ultraviolet ray generated from the first ultraviolet ray lamps into the photocatalyst coating plate unit.

[4] The water sterilizing purified apparatus using a photocatalyst according to claim 1, wherein the photocatalyst coating plate unit consists of a first coating plate having a plurality of first holes positioned to be symmetrical to each other in a predetermined radius from the center thereof and a second coating plate having a plurality of second holes positioned to be symmetrical to each other in a radius different from that of the first hole, the first coating plate and the second coating plate being arranged alternately each other.

[5] The water sterilizing purified apparatus using a photocatalyst according to claim 1, wherein the photocatalyst coating plate unit consists of a first coating plate having a first hole positioned at its one side and a second coating plate having a second hole positioned at the opposite direction to the first hole, the first hole of the first coating plate being positioned above the second hole of the second coating plate.

[6] The water sterilizing purified apparatus using a photocatalyst according to claim 1, wherein the photocatalyst coating plate unit is a screw-rotationable pho- tocatalyst coating plate so as to enable a rotating and a high speed vortex motion.

[7] The water sterilizing purified apparatus using a photocatalyst according to any one of claims 4 to 6, wherein a embossing is formed on the surface of the coating plates so as to increase the contacting area with the polluted and waste water.

[8] The water sterilizing purified apparatus using a photocatalyst according to claim 2, wherein the main tube and the sub tube are a PFA tube or quartz tube.

[9] A water sterilizing purified system, wherein the system cpmprises: a main inlet pipe section being installed with a first main valve for controlling the overall flowing of a polluted and waste water, a plurality of chemical material control valves for controlling the inlet of a predetermined chemical material, and a first cleaning valve for controlling the outlet of a cleaning water for a water sterilizing purified apparatus; a main outlet pipe section being installed with a second main vlave for controlling the flowing of the purified water, a control valve for seperately controlling the flowing of the polluted and waste water and a second cleaning valve for controlling the inlet of a cleaning water; a water sterilizing purified apparatus uing a photocatalyst being installed between the first control valve and the second control valve;and an ozone and bubble generator being installed between the first cleaning valve and the second cleaning valve so as to remove pollutive materials attached to a tube or quartz tube of the water sterilizing purified apparatus.