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1. 发明专利

JPS62144798A TREATMENT OF WASTE WATER 失效
公开(公告)号：JPS62144798A
公开(公告)日：1987-06-27
申请号：JP28548785
申请日：1985-12-20
申请人： MATSUI SABURO , KAJIMA CORP
发明人： MATSUI SABURO , ARAI AKIO , KOIKE KATSUNORI
IPC分类号： C02F3/28 , C02F3/08
摘要： PURPOSE:To attain to simplify heat insulation and maintenance and to conserve power, by providing an anaerobic fluidized bed to a submerged type underground treatment tank. CONSTITUTION:Waste water is poured in a sedimentation basin 7 from a supply line 6 and supernatant water is sent to a raw water pump tank 8 and further sent to the bottom part of an underground treatment tank 3 by a pump 9. This waste water passes a fluidized bed 5 and rises to reach an upper part 10. Supernatant water in the upper part 10 is flooded to a recirculation pump tank 12 to be discharged as treated water through an outflow line 13. A part of water in the recirculation pump tank 12 is returned to the treatment tank 3 by a pump 14 and mixed in waste water from the sedimentation basin 7 to circulatorily receive treatment by anaerobic bacteria in the fluidized bed 5..By this method, heat insulating property is well and the safe treatment of waste water can be performed.

2. 发明专利

JPH0478479A TREATMENT OF ENVIRONMENTAL MAINTENANCE TYPE WASTE 失效
公开(公告)号：JPH0478479A
公开(公告)日：1992-03-12
申请号：JP19079590
申请日：1990-07-20
申请人： MATSUI SABURO , KAJIMA CORP
发明人： MATSUI SABURO , SHIOYAMA YOSHIHARU , ARAI AKIO , TSUKADA TAKAAKI
IPC分类号： C12N1/00 , B09B1/00 , C12R1/01
摘要： PURPOSE:To suppress the activity of a methanogen and to effectively decompose and stabilize an organic matter by suppressing the generation of methane in the presence of a sulfate ions in a waste matter to the extent that oozing water from the waste matter is not made acidic. CONSTITUTION:The sulfate ion (SO4 ) scattering to a waste piling facilities 4 is obtained by the oxidation of H2S contained in the oozing water 6 in the oozing water treatment facilities 5. In the case of shortage with only the returning sulfate ions SO4 , e.g. Na2SO4 solutions may be scattered. By providing sulfur monitor 8, the concentration of the sulfur component in the oozing water 6, namely the state of sulfate ion (SO4 ), hydrogen sulfide ion (HS and hydrogen sulfide (H2S), etc., in the waste material layer of the waste material piling facilities is usually monitored. In the case of the shortage of sulfate ions (SO4 ), the increase in the quantity of the returning water or the scattering of Na2SO4 solution, etc., is used. By this method, the generation of the gaseous methane is suppressed, and, the unfavorable influence on human body and plants, etc., odor problem and the application of remaining lands are solved. Thus, this method is useful for preventing the warming of the earth's atmosphere.

3. 发明专利

JP2512826B2 失效
公开(公告)号：JP2512826B2
公开(公告)日：1996-07-03
申请号：JP19079590
申请日：1990-07-20
申请人： MATSUI SABURO , KAJIMA KENSETSU KK
发明人： MATSUI SABURO , SHIOYAMA YOSHIHARU , ARAI AKIO , TSUKADA TAKAAKI
IPC分类号： C12N1/00 , B09B1/00 , C12R1/01

4. 发明专利

JPH0232038B2 失效
公开(公告)号：JPH0232038B2
公开(公告)日：1990-07-18
申请号：JP28548785
申请日：1985-12-20
申请人： MATSUI SABURO , KAJIMA KENSETSU KK
发明人： MATSUI SABURO , ARAI AKIO , KOIKE KATSUNORI
IPC分类号： C02F3/28 , C02F3/08

5. 发明专利

JPS6434493A POND WATER PURIFICATION 失效
公开(公告)号：JPS6434493A
公开(公告)日：1989-02-03
申请号：JP18901387
申请日：1987-07-30
申请人： KAJIMA CORP
发明人： ARAI AKIO , YAMURA KOICHI
IPC分类号： C02F3/06
摘要： PURPOSE:To effect a simple and efficient purification of pond water by producing an upward stream of air bubbles in a vertical passage of a cylindrical frame installed in the pond water to create the upward motion of the pond water, thereby inducing a flow of the pond water transverse to a decontamination contact layer provided in said frame. CONSTITUTION:A cylindrical frame 1 is installed at a suitable location in a pond 11, so that said frame will extend from slightly above the pond bed 5 to above the water surface 6 of the pond. The air is then sent from a nozzle 8A near the pond bed 5 into a vertical passage 2 of the frame 1 to produce an upward stream of air bubbles 9, which creates the upward motion of the pond water 4, thereby inducing a flow of the pond water 4 transverse to a decontamination contact layer 3 in the cylindrical frame 1. The pond water 4 is subjected to a biological treatment while passing through the decontamination contact layer 3 for digestion and removal of the polluted material from the pond water 4 by microorganisms retained in said contact layer 3. The pond water 4 thus purified is sent back into the pond through the cylindrical frame 1.

6. 发明专利

JPS6331598A BATCHWISE AERATION TYPE WATER TREATMENT CONTAINING IRON CONTACT 失效
公开(公告)号：JPS6331598A
公开(公告)日：1988-02-10
申请号：JP17388186
申请日：1986-07-25
申请人： NISHIGUCHI TAKESHI , KAJIMA CORP
发明人： NISHIGUCHI TAKESHI , ARAI AKIO , TSUKADA TAKAAKI
IPC分类号： C02F3/12
摘要： PURPOSE:To conserve energy and to stabilize capacity, by performing control such that the characteristic of water to be treated is automatically monitored and treatment is finished when a predetermined characteristic is obtained. CONSTITUTION:The detection values of the DO sensor 10, pH sensor 11 and redox potential ORP sensor 12 arranged to the bottom part in a tank 1 are inputted to the monitor 18 of a control computer 13. Further, an iron contact member 9 such as an iron plate is arranged in the tank 1 and waste water is contacted with iron during treatment. The output signals A, B, C of a monitor means 16 are respectively inputted to a blower 4, a treated water valve 8 and a waste water valve 3. Treatment is finished when the concn. of dissolved oxygen (DO) at the terminal of aeration treatment is within a predetermined range, the concn. of DO at the initial stage of sedimentqation treatment becomes substantially zero, pH at the terminal of sedimentation treatment becomes a definite value, for example, 7.9 or more and redox potential (ORP) becomes positive by the repetition of aeration and sedimentation treatment.

7. 发明专利

JPS627496A TREATMENT OF WASTE WATER 失效
公开(公告)号：JPS627496A
公开(公告)日：1987-01-14
申请号：JP14463085
申请日：1985-07-03
申请人： KAJIMA CORP
发明人： ARAI AKIO , KOIKE KATSUNORI , OTSUKA SEIJI
IPC分类号： C02F3/22 , C02F1/44 , C02F9/00
摘要： PURPOSE:To contrive to improve solid-liquid separation efficiency, by recirculating waste water in the up-and-down direction across the pipe wall of the inner pipe of an aeration tank and supplying air to waste water during recirculation to perform aeration treatment. CONSTITUTION:An aeration tank 2 has an upright inner pipe and an outer pipe 4 mutually communicated at the upper end parts and lower end parts thereof and a rising part U and a downward part D are formed across the pipe wall of the inner pipe to recirculate waste water in the up-and-down direction within the aeration tank 2. Air is injected in waste water during recirculation from a blower 5 through an air feed pipe 6 to perform aeration treatment. Thereafter, waste water is introduced into an ultrafiltration membrane apparatus 20 having an ultrafiltration membrane formed of a collodion membrane or a cured cellophane membrane to separate a solid component. By this method, solid-liquid separation is efficiently performed.

8. 发明专利

JPH0311834B2 失效
公开(公告)号：JPH0311834B2
公开(公告)日：1991-02-18
申请号：JP12248587
申请日：1987-05-21
申请人： KAJIMA CORP
发明人： KODAMA MINORU , ARAI AKIO
IPC分类号： C02F3/28 , C02F11/04

9. 发明专利

JPS6422400A WASTE WATER TREATMENT 失效
公开(公告)号：JPS6422400A
公开(公告)日：1989-01-25
申请号：JP17819787
申请日：1987-07-18
申请人： KAJIMA CORP
发明人： KODAMA MINORU , ARAI AKIO , YAMURA KOICHI
IPC分类号： C02F1/38 , C02F3/28 , C02F11/04
摘要： PURPOSE:To increase the speed of a waste water treatment by hermetically communicating the waste water-microorganism mixture in a bioreaction vessel to a centrifugal separator, separating the mixture to a thickened liquid and clean liquid and hermetically returning the thickened liquid from the centrifugal separator to the bioreaction vessel. CONSTITUTION:The treated water in the liquid mixture 3 in the centrifugal separator 23 shifts to the clean liquid 25 and the greater part of the bacteria therein remain in the thickened liquid 24 and, therefore, the liquid 24 contains the bacteria at a high concn. The bacteria in the liquid 3 sent first to the centrifugal separator 23 by a circulation pump 22 are thickened and are returned to the bioreaction vessel 20 when the liquid 24 is returned to the vessel 20. The clean liquid 25 is discharged as treated water 6 through a water sealing device 26 in an ordinary operation. However, the liquid 25 is fed into the vessel 20 through a liquid level control valve 27 when the water level L in the vessel 20 is lowered by a decrease in the inflow rate of the waste water 1, etc.

10. 发明专利

JPS63287598A TREATMENT OF WASTE WATER 失效
公开(公告)号：JPS63287598A
公开(公告)日：1988-11-24
申请号：JP12248587
申请日：1987-05-21
申请人： KAJIMA CORP
发明人： KODAMA MINORU , ARAI AKIO
IPC分类号： C02F3/28 , C02F11/04
摘要： PURPOSE:To reduce the start-up period of an anaerobic upward sludge blanket method (expressed UASB method hereunder) by charging granular sludge in a reaction vessel. CONSTITUTION:Seed sludge is charged in a rotary drum 1 isolated from the external air, waste water is continuously introduced from a pipe 3, and the drum 1 is rotated to grow the seed sludge into granular sludge 56. The granular sludge 56 thus prepared is charged in the reaction vessel 50, and then waste water 57 is treated. As a result, the start-up period of the UASB method can be remarkably reduced.

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