baber/WOPTO huggingface dataset:
Patent KR-20030049378-A (KR)
Title: Pll alarm signal generation apparatus and method for mobile communication base station
Inventor: CHOI JAE MIN
IPC: H04B7/00
Filed: 2001-12-14
Abstract: PURPOSE: An apparatus and a method for generating a PLL(Phase Locked Loop) alarm signal in a mobile communication base station are provided to detect a voltage level of a signal provided to a PLL by a digital scheme and generate an alarm signal for informing an error of the PLL when the error is generated. CONSTITUTION: A divider(201) receives a 10MHz signal from a GPS(Global Positioning System), and distributes the received 10MHz signal to an RF(Radio Frequency) PLL and an IF(Intermediate Frequency) PLL. An amplifier(202) amplifies the 10MHz signal in which a signal level is lowered in the divider(201). A detecting unit(203) converts the 10MHz signal amplified in the amplifier(202) into a voltage value. An A/D converter(204) receives the voltage converted in the detecting unit(203) into digital data. A programmable logic(205) receives the digital data of the A/D converter(204), compares the received digital data with reference digital data, and generates an alarm signal according to the compared result.
Patent KR-20030049573-A (KR)
Title: Thickness monitoring pattern for oxide cmp process
Inventor: KIM UN YONG
IPC: H01L21/66
Filed: 2001-12-15
Abstract: PURPOSE: A thickness monitoring pattern in oxide polishing process is provided to be capable of exactly measuring the thickness of a residual oxide layer in a cell region of a die. CONSTITUTION: A thickness monitoring pattern(10) for measuring the thickness of a residual oxide layer in a polishing process comprises a measurement pattern(12) and a dummy pattern(14) surrounded to the measurement pattern(12). At this time, the dummy pattern(14) has a similar density to a dense pattern in a cell. The measurement pattern(12) has a square shape. Also, the dummy pattern(14) is composed of a polysilicon layer or a metal film.
Patent KR-20030053258-A (KR)
Title: Refractory mortar with high durability
Inventor: HONG GI GON
IPC: C04B35/66
Filed: 2001-12-22
Abstract: PURPOSE: A refractory mortar composition with high melt resistance is provided to prevent the oxidation of bed joints and rear sides of carbon-contained refractory bricks and have easiness in demolish of refractory bricks. CONSTITUTION: The refractory mortar composition contains spinel powder(less than 1mm in size) and amorphous carbon mixed in a weight ratio of 20:80 - 90:10, 1-10wt.% of boric acid and 10-40wt.% of oil(petroleum), wherein the amounts of amorphous carbon and boric acid are calculated by extrapolation. The used spinel is selected from conventional spinel, Al2O3-rich spinel and MgO-rich spinel.
Patent KR-20030053280-A (KR)
Title: Access and Registration Method for Public Wireless LAN Service
Inventor: CHO YEONG RAN
IPC: H04L12/46
Filed: 2001-12-22
Abstract: PURPOSE: A network connection and service registration method for a public wireless LAN service is provided to allow a user to immediately receive a regular service by automatically processing an MAC(Media Access Control) authentication subscriber registration. CONSTITUTION: A user inserts a LAN card into a mobile terminal(301) to attempt a network connection, in order to temporarily use a network connection service as many as determined times. As the network connection is successful, the user connects to a subscriber registration unit(303) by using a browser(304). The user registers an MAC authentication subscriber or an EAP(Extensible Authentication Protocol) authentication subscriber(305). If the user registers as the MAC authentication subscriber, it is checked whether the user has connected through a public wireless LAN(306). If the user has connected through the public wireless LAN, the subscriber registration unit(303) requests an MAC address from a network connection managing unit(302)(308). The network connection managing unit(302) searches an IP allocated MAC address by using an IP address included in an MAC address request message(309). The network connection managing unit(302) transfers an MAC address request result to the subscriber registering unit(303)(310). The subscriber registering unit(303) automatically registers the received MAC address(311). If the user has not connected to the subscriber registering unit(302) through the public wireless LAN, the user manually inputs the MAC address to perform an MAC authentication subscriber registration(307). If the user registers as an EAP authentication subscriber(312), he/she downloads a network connection program for an EAP authentication(313).
Patent KR-20030053904-A (KR)
Title: Polarizing film having ultraviolet absorbing ability and its production
Inventor: KIM DO HYEONG
IPC: G02B5/30
Filed: 2001-12-24
Abstract: PURPOSE: A polarizing film having an ultraviolet absorption function and a fabricating method thereof are provided to absorb and shield effectively ultraviolet rays by improving a production process. CONSTITUTION: A polarizing film is dipped into the aqueous solution including an ultraviolet absorbent in order to fabricate a polarization film having an ultraviolet absorption function. And, making 100 volumes of aqueous solution having 0.05-1.5 percents on the basis of boron by dissolving a composition including boric acid of 95-80 percents and borax of 5-20 percents in water. The mixed aqueous solution of the ultraviolet absorbent, the boric acid, and the borax is formed by adding 2.2',4.4,-tetrahydroxybenzophenone of 0.05 to 0.5 weight percent as the ultraviolet absorbent to boric acid or aqueous solution of boric acid including boron of 0.05 to 1.5 weight percents and aqueous solution of borax of 100 weight percents. The polarization film is formed by dipping a polyvinyl-alcohol film into the mixed aqueous solution during 30 seconds to 5 minutes under temperature of 35-60 degrees and pH of 4.5-7.2.
Patent KR-20030053929-A (KR)
Title: Method for providing voice alarm in mobile phone
Inventor: JUNG BO GO
IPC: H04B1/64
Filed: 2001-12-24
Abstract: PURPOSE: A voice alarm providing method in a mobile communication terminal is provided to allow a user to record content by a voice and listen to the voice content at an alarm time. CONSTITUTION: In a standby state(S210), it is judged whether there is an alarm time corresponding to a current time among plural set and registered alarm times(S212). If there is a corresponding alarm time, it is judged whether a corresponding voice has been stored(S214). If there is a stored voice, the voice is reproduced(S216). It is judged whether a character has been registered(S220). If there is no stored voice, an alarm sound is generated(S218). It is judged whether a character has been registered(S220). If a character has been registered, the character is displayed on a display unit(S222).
Patent KR-20030054981-A (KR)
Title: Tcp progress apparatus in mobile communication base station
Inventor: KANG CHEOL HUI
IPC: H04L12/56
Filed: 2001-12-26
Abstract: PURPOSE: A device for improving TCP(Transmission Control Protocol) performance of a mobile communication base station is provided to immediately retransmit packets in maximum window size, and to filter an overlapped ACK message in a K_SNOOP, thereby avoiding congestion as preventing TCP performance deterioration and preventing the packets from being unnecessarily retransmitted. CONSTITUTION: A packet processor(110) stores packets transmitted from wired terminals in a cash(120), and transmits the stored packets to a wireless terminal. The cash(120) receives the packets from the packet processor(110), and stores the packets. A recognition signal processor(130) transmits a recognition signal of showing that the packets are received from the wireless terminal, and transmits the recognition signal to the wired terminal. A recognition signal timer(140) generates a duplicate recognition signal of the recognition signal finally transmitted from the wireless terminal, if the recognition signal does not arrive for time out, and sets a window size to 0 to make a wired end a persist mode.
Patent KR-20030057028-A (KR)
Title: An array substrate for In-Plane switching mode LCD and the method for fabricating the same
Inventor: YOON JAE HYEONG
IPC: G02F1/1343
Filed: 2001-12-28
Abstract: PURPOSE: An array substrate for a transverse LCD(Liquid Crystal Display) device and a manufacturing method thereof are provided to prevent the generation of current leakage by removing the residual film when an etching hole is formed. CONSTITUTION: When source and drain electrodes(126,128), a pixel electrode(130) and data lines(124) are patterned, a metal residual film(125) is formed in the stepped portion of a common electrode(117b) due to the defective etching. A protecting film is formed on the front face of a substrate(100). An etching hole(134) is formed by etching a specific portion corresponding to the stepped portion of the common electrode. When the etching hole is formed, the metal residual film is removed.
Patent KR-20010053517-A (KR)
Title: 디지털 비디오 장치 사용자 인터페이스
IPC: H04N5/91
Filed: 1999-07-02
Abstract: 저장 매체 상에 저장된 정보를 처리하기 위한 방법 및 장치는 플레이모드 동작 동안에, 즉 플레이백 동안에 상기 매체에 저장된 정보를 액세스하는 단계와, 플레이백(playback)되고 있는 상기 프로그램의 일부분의 등급이 상기 장치에 대한 등급 제한 세팅과 다른지의 여부를 결정하기 위해서 플레이백되는 동안에 상기 정보를 처리하는 단계를 포함한다. 만약 상기 등급 제한과 다른 등급이 검출된다면, 상기 프로그램의 일부분에 대한 상기 등급 제한을 오버라이드(override)할 것인지의 여부를 결정하는 것이 사용자에게 프롬프팅된다. 오버라이드 선택 다음에는 상기 등급 제한을 상기 프로그램의 일부분에 대한 플레이백을 허용하는데 필요한 새 등급 제한으로 변경하는 단계가 온다. 오버라이드는, 사용자가 먼저 패스워드를 입력하자마자 조정될 수 있을 것이다. 상기 프로그램의 일부분에 대한 플레이백을 완료한 다음에는 상기 등급 제한을 상기 오버라이드 동작 이전의 상기 장치에 대한 상기 등급 제한 세팅으로 되돌릴 것이다. 오버라이드 "온-더-플라이(on-the-fly)" 모드 동작은 선택적으로 인에이블될 수 있을 것이다.
Patent KR-20010079862-A (KR)
IPC: C03C4/08
Filed: 1999-11-12
Abstract: A high performance green glass composition containing at least 14.5% by weight Na2O, at least 10.5% by weight CaO, at least 0.5% by weight total iron (measured as Fe2O3) and is substantially magnesium-free, the glass thus produced having a ferrous value of at least 30% and a performance (light transmission minus Direct Solar Heat Transmission) of at least 28% at at least one thickness of 2.8 mm to 5 mm. The invention also relates to glasses made from such composition and to a laminated glass assembly in which two sheets of glass sandwich a polymeric material, at least one, preferably both, of the sheets of glass having such a composition.
Patent KR-20010093100-A (KR)
IPC: G11B23/087
Filed: 1999-11-26
Abstract: 본 발명의 자기 테이프 카세트는 상하 카세트 절반부를 조합시켜 이루어진 카세트 케이스 내에 자기 테이프(47)를 감은 한쌍의 테이프 릴(1)을 회동이 자유롭게 유지한 구성이다.  하측 카세트 절반부에는 자기 테이프(47)를 안내하는 테이프 가이드(114)가 일체로 성형되어 있다.  테이프 가이드(114)는 통 형상 부분을 갖고, 상기 통 형상 부분은 그 둘레 방향으로 자기 테이프가 접촉하여 미끄러지는 만곡부를 갖고 있다.  만곡부의 두께는 통 형상 부분의 둘레 방향의 다른 부분의 두께보다 두껍게 되어 있다.
Patent KR-20010099829-A (KR)
IPC: G03B21/62
Filed: 1999-12-15
Abstract: 투과형 스크린은 제 1 광확산층(1)과 제 2 광확산층(2)을 포함한다.  제 1 광확산층(1)은 투광성 수지로 이루어진 제 1 기재(1A)중에 제 1 기재(1A)와의 굴절률차가 0.07 내지 0.17이고 중량 평균 입경이 1 내지 12㎛인 미립자로 이루어진 제 1 광확산재(1B)가 20 내지 50 중량% 함유되어 있고, 두께가 50 내지 200㎛이다.  제 2 광확산층(2)은 투광성 수지로 이루어진 제 2 기재(2A)중에 중량 평균 입경 1 내지 12㎛의 미립자로 이루어진 제 2 광확산재(2B)가 0.1 내지 10.0 중량% 함유되어 있고, 두께가 500 내지 5000 ㎛이며, 헤이즈값이 50 내지 85%이다.
Patent KR-20010093236-A (KR)
IPC: G02F1/139
Filed: 2000-11-02
Abstract: 반사형 액정 장치는, 제 1 기판(10)상의 액정에 면하는 측에 반사 전극(14)을 구비하는 한편, 제 2 기판(20)상의 액정과 반대측에 제 1 위상차 판(106), 제 2 위상차 판(116) 및 편광판(105)을 구비한다.  액정의 트위스트 각 및 Δnd는 각기 230∼260° 및 0.70∼0.85㎛이다.  제 1 위상차 판의 Δnd는 150 ±50㎚이고, 제 2 위상차 판의 Δnd는 610 ±60㎚이다. 편광판의 투과축 또는 흡수축과 제 2 위상차 판의 광축이 이루는 각도는 10∼35°이고, 제 1 위상차 판의 광축과 제 2 위상차 판의 광축이 이루는 각도는 30∼60°이다.  이것에 의해, 밝고 고콘트라스트의 화상 표시가 가능해진다.
Patent KR-20020005572-A (KR)
IPC: F02D45/00
Filed: 2000-10-19
Abstract: 타당성 검사는 스로틀 밸브 위치(dk), 및 스로틀 밸브 전방의 압력 및 스로틀 밸브 후방의 압력으로부터 검출된 압력 차이(dps)에 따라 제1 부하 정보(11)가 도출됨으로써 실행된다.  또한, 제2 부하 정보(12)는 흡입 밸브 양정(vv) 및 엔진 회전 속도(nmot)에 따라 도출된다.  두 부하 정보(11, 12)들 중 더 작은 값이 측정된 부하(lhfm)와 비교된다.  측정된 부하(lhfm)가 부하 정보(11, 12)로부터 편차를 나타내면, 측정된 부하(lhfm)의 에러 신호가 생성된다.
Patent KR-20010102044-A (KR)
Title: Quinazoline derivatives as angiogenesis inhibitors
IPC: A61P37/00
Filed: 2000-02-08
Abstract: The invention relates to the use of compounds of the formula I:   
wherein ring C is an 8, 9, 10, 12 or 13-membered bicyclic or tricyclic moiety which optionally may contain 1-3 heteroatoms selected independently from O, N and S; Z is -O-, -NH-, -S-, -CH 2 - or a direct bond; n is 0-5; m is 0-3; R 2  represents hydrogen, hydroxy, halogeno, cyano, nitro, trifluoromethyl, C 1-3 alkyl, C 1-3 alkoxy, C 1-3 alkylsulphanyl, -NR 3 R 4  (wherein R 3  and R 4 , which may be the same or different, each represents hydrogen or C 1-3 alkyl), or R 5 X 1 - (wherein X 1  and R 5  are as defined herein; R 1  represents hydrogen, oxo, halogeno, hydroxy, C 1-4 alkoxy, C 1-4 alkyl, C 1-4 alkoxymethyl, C 1-4 alkanoyl, C 1-4 haloalkyl, cyano, amino, C 2-5 alkenyl, C 2-5 alkynyl, C 1-3 alkanoyloxy, nitro, C 1-4 alkanoylamino, C 1-4 alkoxycarbonyl, C 1-4 alkylsulphanyl, C 1-4 alkylsulphinyl, C 1-4 alkylsulphonyl, carbamoyl,  N- C 1-4 alkylcarbamoyl,  N , N -di(C 1-4 alkyl)carbamoyl, aminosulphonyl,  N -C 1-4 alkylaminosulphonyl,  N , N -di(C 1-4 alkyl)ammosulphonyl,  N -(C 1-4 alkylsulphonyl)amino,  N- (C 1-4 alkylsulphonyl)- N -(C 1-4 alkyl)amino,  N , N -di(C 1-4 alkylsulphonyl)amino, a C 3-7 alkylene chain joined to two ring C carbon atoms, C 1-4 alkanoylaminoC 1-4 alkyl, carboxy or a group R 56 X 10  (wherein X 10  and R 56  are as defined herein); and salts thereof, in the manufacture of a medicament for use in the production of an antiangiogenic and/or vascular permeability reducing effect in warm-blooded animals, processes for the preparation of such compounds, pharmaceutical compositions containing a compound of formula I or a pharmaceutically acceptable salt thereof as active ingredient and compounds of formula I. The compounds of formula I and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.
Patent KR-20020010145-A (KR)
IPC: C04B35/52
Filed: 1999-05-14
Abstract: 활성 탄소, 세라믹 성형 재료, 융제, 및 물을 포함하는 압출하는 단계, 압출된 단일체를 건조시키는 단계, 및 건조시킨 단일체를 세라믹 성형 재료가 함께 반응하여 세라믹 매트릭스를 형성하기에 충분한 온도에서 그렇게 하기에 충분한 시간 동안 연소시키는 단계에 의해 제조된 흡착성 단일체.  상기 압출가능 혼합물은 또한 젖은 결합체를 포함할 수 있다.  본 발명의 단일체는 하나 이상의 관통 통로를 가지며, 바람직하게는 벌집 구조를 형성하는 복수개의 관통 통로를 갖는다.  본 발명의 단일체는 진공 건조법, 동결 건조법 또는 습도 제어 건조법으로 건조시킬 수 있다.  본 발명의 단일체는 유체 스트림으로부터 휘발성 유기 화합물 및 오존과 같은 기타 화학 물질을 제거하는 데 유용하다.  특히 유용한 용도에는 건식 인쇄 장치 및 다른 적합한 사무용 기기로부터 오존을 제거하고 자동차 엔진 공기 유입 시스템으로부터 휘발성 유기 화합물을 제거하는 흡착 필터가 있다.
Patent KR-20030060641-A (KR)
Title: Method for welding nut and its nut
Inventor: KIM CHEOL HWAN
IPC: B23K11/14
Filed: 2002-01-10
Abstract: PURPOSE: A nut and a method for welding the nut are provided to improve workability in relation to a nut welding work and a bolt coupling work by integrally coupling the nut with an auxiliary member, and then, welding the auxiliary member with parent material. CONSTITUTION: An auxiliary member(20) made of material identical to base material used in a welding process is integrally coupled with a nut(10). Then, the auxiliary member(20) is bonded to parent material through an electric thermal-fusion welding, thereby welding the nut(10) with basic material. A protrusion(11) is formed at one side of the nut(10) and a hole(21) is formed at the center of the auxiliary member(20). The protrusion(11) is inserted into the hole(21) of the auxiliary member(20). Then, the protrusion(11) inserted into the hole(21) is pressed so that the protrusion(11) is bonded around the hole(21). The nut(10) and parent material are fixed by means of two pressing members. Then, high-voltage current is applied to the pressing members.
Patent KR-20030062521-A (KR)
Title: nonskid apparatus for tire
Inventor: KIM JONG GIL
IPC: B60C27/10
Filed: 2002-01-17
Abstract: PURPOSE: An anti-skid device of a tire is provided to prevent the breakage or slippage of a friction member installed in an anti-skid device by improving the combining structure of a pulling bar and the friction member of the anti-skid device. CONSTITUTION: An anti-skid device of a tire comprises plural friction members(12) horizontally adhering to a tread face(110) of a tire(100) and arranged on the tread face, a wire(13) fixed with one ends of the friction members, having connecting members on both ends and shorter than the circumference of the tire, many pulling bars(30) binding two of the friction members, and a pulling unit(15) placed in each pulling bar and pulling each pulling bar to the center of the tire. For the adherence of the friction members to the side or the tread face of the tire, the friction members combined to both sides of the pulling bar form a specific angle with the pulling bar.
Patent KR-20030062759-A (KR)
Title: Clip for fixing a wire harness
Inventor: HONG JIN HUI
IPC: B60R16/02
Filed: 2002-01-18
Abstract: PURPOSE: A clip for fixing a wire harness is provided to easily fix the wire harness on a vehicle and to prevent the damage of parts in the vehicle by rounding and bending a free end in an inner clip body. CONSTITUTION: A clip for fixing a wire harness is composed of an outer material(10) having a horseshoe-shaped section, and an inner clip body(20) coupled with the inside of the outer material and having a plurality of bent parts(20b). The outer material has a fitting protrusion(10a). Free ends(20c) on each bent part are rounded with a predetermined radius, and are bent with a predetermined angle.
Patent KR-20030067117-A (KR)
Title: Cooling system for hydrogen storage tank of fuel cell powered vehicle
Inventor: KWON SUN U
IPC: B60K15/00
Filed: 2002-02-07
Abstract: PURPOSE: A cooling system for a hydrogen storage tank of a fuel cell vehicle is provided to reduce charge time of hydrogen, and to improve safety by restricting increase of hydrogen temperature with circulating coolant though a coolant circulating pipe in charging hydrogen. CONSTITUTION: A hydrogen storage tank cooling system is composed of a coolant circulating pipe inserted and installed evenly to a shell of a hydrogen storage tank(14) to exchange heat with hydrogen by circulating and discharging coolant, and a coolant supply system(25) connected to the coolant circulating pipe to supply coolant and installed in a hydrogen charge equipment(20) outside the vehicle. The coolant supply system has a coolant supply tank(26), a pump(27), a coolant supply pipe(28), and a coolant discharge pipe(29). Increase of hydrogen temperature is restricted by exchanging heat between coolant and hydrogen with circulating coolant in charging hydrogen. Thus, charge time is reduced, and safety is improved.
Patent KR-20030066269-A (KR)
Title: The Productive Method Of Organic Liquid Fertilizer By Loess And Organic Mtters.
Inventor: JEONG JONG SOO
IPC: C05F11/08
Filed: 2002-02-05
Abstract: PURPOSE: Provided is a production method of organic liquid fertilizer as nutrients for plant growth by using yellow earth extracts, fish residues and vegetable organic extracts. Also, the liquid fertilizer is well absorbed into plants and prevents damages by blight and harmful insects. CONSTITUTION: The organic liquid fertilizer is produced by the following steps of: (i) preparing yellow earth extracts from culturing yellow earth, vitamin B and C, culture solution(I) and refined sugar over 60deg.C for 10days; (ii) preparing organic extracts from culturing fish residues, animal organics, molasses and culture solution(II) at 35deg.C for 8days; (iii) preparing vegetable extracts from culturing sesame dregs, molasses and culture solution(III) at 30deg.C for 6days; (iv) mixing the extracts from (i), (ii) and (iii), and culturing at 15deg.C or lower or 16days.
Patent KR-20030070202-A (KR)
Title: self-propelled sprayer
Inventor: PARK MI SEUNG
IPC: A63H3/28
Filed: 2002-02-21
Abstract: PURPOSE: A self-standing type spray device is provided to secure stable movement of a vehicle, to reduce preparing and processing time before and after a spray work, and to improve the efficiency of the spray work. CONSTITUTION: The self-standing type spray device comprises spray beams(3,5), which are mounted at both sides of a vehicle body(1) so that a plurality of spray nozzles(7) are arranged and suspended in a line along a transverse direction of a vehicle. The spray beams take the form of a multi-stage flexible structure having first to third beam members(9,11,13).
Patent KR-20020046233-A (KR)
Inventor: JUNG IM KYUN
IPC: G08G1/0969
Filed: 2002-03-05
Abstract: PURPOSE: An intelligent traffic information service system using wireless internet and a CCD(Charge Coupled Device) camera with a speed sense function is provided to offer rapidly traffic information by installing a multitude of CCD cameras with the speed sense function at each congestion region. CONSTITUTION: A vehicle speed sense system(100) is formed with a multitude of CCD cameras(110) for photographing a state of a road and sensing a speed of a vehicle and a traffic information collection device(120) for collecting road information and speed information from the CCD cameras(110). A user terminal system is formed with a CDMA terminal or an IMT-2000 terminal(310), a PDA terminal(320), and a computer terminal(330) for an annexed service. A central system(200) receives the collected information from the traffic information collection device(120) by using a communication program(210) and stores the received information in a database(230).
Patent KR-20030072140-A (KR)
Title: Apparatus and method for playing/storing digital broadcasting
Inventor: BAEK JEONG HUN
IPC: H04N7/20
Filed: 2002-03-05
Abstract: PURPOSE: An apparatus and a method for playing and storing digital broadcasts are provided to simultaneously play and store the digital broadcasts with one demultiplexer, and play and store different broadcasting signals simultaneously received by one antenna. CONSTITUTION: A CPU(190) controls to simultaneously play and store digital broadcasting signals to be played and another digital broadcasting signals to be stored. A demodulator(100) demodulates the digital broadcasting signals to be played and stored according to the control of the CPU. A transport stream multiplexer(150) synthesizes broadcasting streams demodulated at the demodulator into one transport stream. A demultiplexer(160) demultiplexes broadcasting streams of a channel to be played and stored from broadcasting stream transported from the transport stream multiplexer. An MPEG decoder(170) decodes broadcasting signals for playback output from the demultiplexer. A memory(180) temporarily stores the demultiplexed broadcasting signals for playback.
Patent KR-20030072986-A (KR)
Title: Method and apparatus of sewage and wastewater by micro ozone bubble
Inventor: LIM JI HUN
IPC: C02F1/78
Filed: 2002-03-08
Abstract: PURPOSE: Provided are sewage and wastewater treatment apparatus and method being capable of removing nonbiodegradable organics, heavy metals, nitrogen, phosphorous and deleterious particles by adsorbing, floating and oxidizing them by ozone bubbles. CONSTITUTION: The method comprises the steps of introducing wastewater into a liquid/gas mixer at a predetermined pressure, supplying compressed air to the liquid/gas mixer, mixing the wastewater and the compressed air in the liquid/gas mixer, compressing the air/mixed wastewater and temporarily storing the compressed one in a pressure tank, and supplying the compressed one in the pressure tank to a wastewater tank so as to remove contaminants in the wastewater by floating the contaminants, wherein micro ozone bubbles are supplied to the wastewater tank along with the compressed air. The apparatus comprises a pressure pump(4) for transporting wastewater in wastewater tank to a liquid/gas mixer(2), a compressor(6) for supplying compressed air to the wastewater in the liquid/gas mixer(2), an ozone generator(12) for supplying ozone to the wastewater in the liquid/gas mixer(2) along with the compressed air, the liquid/gas mixer(2) for mixing wastewater, compressed air and ozone, a pressure tank(8) for temporarily compressing and storing the mixture of wastewater, compressed air and ozone, a supply pipe(18) for supplying the compressed air/mixed wastewater to the wastewater tank, and a pressure valve(10) connected to the supply pipe(18).