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1. 发明专利

JPH01199632A METHOD FOR REMOVING NOX IN WASTE GAS 失效
公开(公告)号：JPH01199632A
公开(公告)日：1989-08-11
申请号：JP2414688
申请日：1988-02-03
申请人： OSAKA CITY , HITACHI SHIPBUILDING ENG CO
发明人： INOUE ZENSUKE , ITO HISAO , SAWACHI MINORU , HIROTSUNE AKIO , MINO SADAO
IPC分类号： B01D53/56 , B01D53/34 , B01D53/77
摘要： PURPOSE:To efficiently remove the NOx in waste gas without need for a denitrator by bringing the waste gas into contact with a waste gas processing soln. contg. an oxidizing agent and bromine ion, and absorbing the NOx in the gas into the processing soln. CONSTITUTION:A soln. contg. an oxidizing agent and bromine ion is prepared, and waste gas is brought into contact with the soln. to absorb the NOx in waste gas into the soln. Concretely, sodium hypochlorite and potassium bromide are added to an alkaline cleaning soln., the soln. is dispersed in a smoke scrubbing tower 21 as the absorbent, and the soln. accumulated on the tower bottom is circulated by a pump 22. When the NOx-contg. gas (at about 500Nm /h, 20 deg.C, 500-700ppm inlet HCl, and 40-50ppm inlet SOx) is scrubbed with the soln., the NOx are removed with high efficiency.

2. 发明专利

JPS61257223A METHOD FOR REMOVING MERCURY INCORPORATED IN EXHAUST GAS 失效
公开(公告)号：JPS61257223A
公开(公告)日：1986-11-14
申请号：JP10016785
申请日：1985-05-10
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAGAYA KIICHI , ABE YOSHITAKA , KIKUCHI KIYOETSU , OBATA HIROICHI , MINO SADAO , HIROTSUNE AKIO
IPC分类号： B01D53/64 , B01D53/34 , C22B43/00 , F27D17/00
摘要： PURPOSE:To selectively remove mercury in a high degree of removal by washing an exhaust gas with an alkaline washing liquid contg. a reducing agent and thereafter trapping the mercury vapor incorporated in the exhaust gas. CONSTITUTION:An exhaust gas contg. mercury is washed in a washing tower 1 with an alkaline washing liquid contg. a reducing agent such as HI and H2S. Therefore the greator parts of mercury are incorporated in the exhaust gas and the washing liquid is induced to an aeration vessel 2 (vaporization) and the mercury incorporated in the liquid is vaporized by the aeration treatment. Both the exhaust gas drawn from the washing tower 1 and the mercury vapor drawn from the aeration vessel 2 are induced to a mercury trapping tower 3 and herein it is trapped with a mercury vapor adsorbent and the treated gas is discharged in the atmosphere.

3. 发明专利

JP2002136818A AIR CLEANING DEVICE 失效
公开(公告)号：JP2002136818A
公开(公告)日：2002-05-14
申请号：JP2000334106
申请日：2000-11-01
申请人： HITACHI SHIPBUILDING ENG CO , DAIKI ENGINEERING KK
发明人： MURAKAWA TADAO , ANDO SHINICHIRO , OBATA HIROICHI , MINO SADAO , KAWAGUCHI YASUNORI , MORIOKA KENJI
IPC分类号： F24F7/00 , A61L9/01 , A61L9/16 , B01D46/00
摘要： PROBLEM TO BE SOLVED: To provide an air cleaning device capable of effectively preventing the diffusion of pollutant at the working space where the diffusion of a pollutant such as dioxins could occur, to ensure the safety of a worker and also to prevent air pollution and to complete a safe hygiene managing system. SOLUTION: The air cleaning device 1 is provided with a casing 2 having an air inlet 21 and an air outlet 22 and provided with an air passage 23 from the air inlet 21 to the air outlet 22 at its inside, pollutant removing means 3, 4 and 5 provided in mid-way of the air passage 23 and a blower 6 provided in mid-way of the air passage 23. The pollutant removing means are constituted of particulate pollutant removing means 3 and 5 and a gaseous pollutant removing means 4. The particulate pollutant removing means are constituted of a bag filter for a primary treatment and a HEPA filter 5 for a secondary treatment. The gaseous pollutant removing means 4 is constituted of activated carbon 4.

4. 发明专利

JPH1099898A TREATMENT OF WASTE WATER IN WASTE REFUSE INCINERATION TREATMENT FACILITIES 失效
公开(公告)号：JPH1099898A
公开(公告)日：1998-04-21
申请号：JP25427196
申请日：1996-09-26
申请人： HITACHI SHIPBUILDING ENG CO
发明人： OBATA HIROICHI , DEGUCHI HIDETOSHI , MINO SADAO
IPC分类号： C02F9/00 , C02F1/52 , C02F3/06
摘要： PROBLEM TO BE SOLVED: To miniaturize treatment equipment by adding a chemical agent consisting of an alkali agent, a flocculant and a flocculation aid to inorg. waste water not only to insolubilize heavy metals as hydroxides but also to flocculate a suspended substance to sediment and separate them and mixing org. waste water with supernatant waste water to biologically treat org. matter. SOLUTION: Inorg. waste water stored in a first raw water tank 1 is sent to a reaction tank 2 and a chemical agent, a flocculant and a flocculation aid is added to inorg. waste water not only to insolubilize heavy metals as hydroxides but also to flocculate a suspended substance. Next, this inorg. waste water is sent to a sedimentation tank 3 and, after flocs are sedimented and separated, alkaline supernatant waste water is sent to a neutralization tank 4 and a neutralizing agent is added to the supernatant waste water to neutralize the same. Subsequently, the waste water is sent to a second raw water tank 5 to be stored therein and org. waste water is added to the waste water and this mixed waste water is sent to a biological treatment tank 6 and org. matter is metabolized and decomposed by aerobic bacteria bonded to a contact material. Thereafter, the waste water is sent to a sedimentation tank 7 and sludge composed of decomposed matter of org. matter is sedimented and separated to be sent to a treated water tank 8.

5. 发明专利

JPS6223420A TREATMENT OF COMBUSTION EXHAUST GAS 失效
公开(公告)号：JPS6223420A
公开(公告)日：1987-01-31
申请号：JP16337485
申请日：1985-07-23
申请人： HITACHI SHIPBUILDING ENG CO
发明人： OBATA HIROICHI , MINO SADAO , FUKIHARU MINEO
IPC分类号： B01D53/34 , B01D53/68 , B01D53/77
摘要： PURPOSE:To reduce the load in the treatment of waste water by reducing the discharge amount of waste gas washing waste water, by separately discharging the waste gas washing waste water from a quenching part and the condensed water from a cooling/ humidity reducing part. CONSTITUTION:Combustion exhaust gaas G11 containing HCl, SOx and heavy metals generated by the incineration of waste is introduced into a quenching part 12 from an inlet 11 to be quenched by the cooling liquid 13 recirculated and sprayed by a pump 14 and, at the same time, a part of the substance contained in the gas is absorbed and removed and the remainder is absorbed and washed by an alkaline absorbing solution 16 in an absorbing part 15. Subsequently, the exhaust gas is guided to a cooling/humidity reducing part 19 through a mist separator 18 and cooled and reduced in humidity by cooling water 22 cooled by a cooler 20 and recirculated by a pump 21 to be discharged from the tower top 24 through a mist separator 23. The alkaline absorbing liquid 16 corresponding to a replenished amount is flooded to the quenching part 12 and a part of the cooling liquid 13 is discharged to the outside as waste gas washing waste water L11. A predetermined amount is taken out from cooling water 22 of which the amount was increased by the condensation of moisture in exhaust gas in the cooling/humidity reducing part 19 to be discharged as condensed water L12.

6. 发明专利

JP2002159975A TREATMENT EQUIPMENT FOR PCDDS-CONTAINING WASTE WATER 失效
公开(公告)号：JP2002159975A
公开(公告)日：2002-06-04
申请号：JP2000360755
申请日：2000-11-28
申请人： HITACHI SHIPBUILDING ENG CO
发明人： MURAKAWA TADAO , ANDO SHINICHIRO , OBATA HIROICHI , MINO SADAO , NAKANO KENICHI
IPC分类号： C07D319/24 , B01D21/00 , B01D63/02 , B01D63/06 , B01D63/08 , B01D63/10 , C02F1/28 , C02F1/44 , C02F1/52 , C02F9/00
摘要： PROBLEM TO BE SOLVED: To satisfy PCDDs(polychlorinated-dibenzo-p-dioxins)

7. 发明专利

JPH05285335A 失效
公开(公告)号：JPH05285335A
公开(公告)日：1993-11-02
申请号：JP8395492
申请日：1992-04-06
申请人： HITACHI SHIPBUILDING ENG CO
发明人： MURAKAWA TADAO , MINO SADAO
IPC分类号： B01D46/02 , B01D46/00 , B01D53/34 , B01D53/40 , B01D53/46 , B01D53/64 , B01D53/70 , B01D53/77
摘要： PURPOSE:To provide the method for treating waste gases which can efficiently remove the harmful materials, such as soot, acidic gases, heavy metals and dioxine, in the waste gases. CONSTITUTION:This method for treating waste combustion gases consists in injecting 1 water to the waste gases to dissolve and remove the heavy metals in the waste gases, then adding an alkali to the waste gases, treating the waste gases in a dust removing column 2, subjecting the acidic gases to an alkali absorption treatment in a gas absorption column 3, adding the alkali to the waste gases, subjecting the gases to a dust collection treatment in a bag filter 4, releasing the clean waste gases and transferring the ashes captured by the bag filter contg. the excess alkali to the dust removing column 2.

8. 发明专利

JPH0362443B2 失效
公开(公告)号：JPH0362443B2
公开(公告)日：1991-09-26
申请号：JP10016785
申请日：1985-05-10
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAGAYA KIICHI , ABE YOSHITAKA , KIKUCHI KYOETSU , OBATA HIROICHI , MINO SADAO , HIROTSUNE AKIO
IPC分类号： B01D53/64 , B01D53/34 , C22B43/00 , F27D17/00

9. 发明专利

JPS6291293A TREATMENT OF WASTE WATER BASED ON ANAEROBIC TREATMENT 失效
公开(公告)号：JPS6291293A
公开(公告)日：1987-04-25
申请号：JP23187985
申请日：1985-10-16
申请人： HITACHI SHIPBUILDING ENG CO
发明人： KIDA KENJI , KISHIMOTO MAKIO , NISHI SHINICHIRO , MINO SADAO
IPC分类号： C02F3/00 , C02F3/28 , C02F3/30 , C02F11/04
摘要： PURPOSE:To contrive to conserve energy, by applying anaerobic treatment to high concn. org. waste water two times in succession before applying aerobic treatment thereto using immobilized bacteria. CONSTITUTION:A sedimentation tank 20 being an acid forming reaction liquid receiving tank is arranged between an acid forming tank 11 and a gas forming tank 12. The waste water storage tank 22 arranged in a cooling tank 21 is provided in the upstream side of the acid forming tank 11. Org. waste water is supplied to the acid forming tank 11 from the waste water storage tank 22 in the cooling tank 21 by a pump 23 and subsequently once received in the sedimentation tank 20 by a pump 24 and further continuously or intermittently supplied to the gas forming tank 12 by a pump 25 and upwardly rises through said tank 12 to be issued from the top of the tank and returned to the bottom of the tank 12 by a pump 26 through the outside of the tank 12. The waste water is recirculated as mentioned above and treated waste water flows out of a bacteria sedimentation part 18. Digestion sludge for high temp. treatment is used in the acid forming tank 11 and the gas forming tank 12 to treat bacteria.

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