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1. 发明专利

JPH09155372A WATER SPRINKLING FILTER BED APPARATUS AND WASHING THEREOF 失效
公开(公告)号：JPH09155372A
公开(公告)日：1997-06-17
申请号：JP33999595
申请日：1995-12-04
申请人： TOKYU KENSETSU KK
发明人： UEKI KYOKO , MOCHIDA ETSUO , YAI HIROYUKI , RARITSUTO KUMAARU AGURAWARU , HARADA HIDEKI
IPC分类号： C02F3/04
摘要： PROBLEM TO BE SOLVED: To enhance the decomposition treatment capacity of a pollutant component by sufficiently bringing the whole of a filter material into contact with air. SOLUTION: Rope like filter materials 6 are arranged so as to be suspended in the air and a sewage supply means is provided above the rope like filter materials and sewage is allowed to flow down along the rope like filter materials to be filtered. Further, in a washing method of a water sprinkling filter bed apparatus having the hanging member 5 having water passing holes 51 arranged in a hollow tank 1 in a liftable manner, the rope like filter materials suspended from the hanging member, a means supplying sewage to the upper parts of the rope like filter materials through the water passing holes and a jet means injecting air into the tank and constituted so as to allow sewage to flow down along the rope like filter materials, the hanging member is allowed to fall and air is injected into the tank by the jet means in such a state that the housing vol. of the rope like filter materials in the tank is reduced in order to reduce an amt. of washing waste water to stirr and wash the rope like filter materials.

2. 发明专利

JPH07275611A FILTERING DEVICE FOR WASTE LIQUID AND METHOD FOR WASHING FILTER MEDIUM 失效
公开(公告)号：JPH07275611A
公开(公告)日：1995-10-24
申请号：JP9825494
申请日：1994-04-12
申请人： TOKYU KENSETSU KK , HARADA HIDEKI
发明人： MOCHIDA ETSUO , YAI HIROYUKI , UEKI KYOKO , HARADA HIDEKI
IPC分类号： B01D24/02 , B01D24/46 , B01D29/62
摘要： PURPOSE:To provide a filtering device for waste liquid and a method for washing the filter medium by which the filter medium can be washed efficiently, and treatment of the drain waste liquid produced by washing can be treated easily. CONSTITUTION:A filtration tank 11 is divided into filtration chambers 13a, 13b,... which are filled with a filter medium 20. Waste liquid is recovered by pressing the filter medium 20 with a porous press plate 16 while the bottom plates of the filtration chambers 13a, 13b,..., which can be freely opened, are closed.

3. 发明专利

JPH09225494A SEWAGE TREATING DEVICE 失效
公开(公告)号：JPH09225494A
公开(公告)日：1997-09-02
申请号：JP5996396
申请日：1996-02-22
申请人： TOKYU KENSETSU KK
发明人： RARITSUTO KUMAARU AGURAWARU , MOCHIDA ETSUO , YAI HIROYUKI , UEKI KYOKO , HARADA HIDEKI
IPC分类号： C02F3/28 , C02F3/30 , C02F3/34
摘要： PROBLEM TO BE SOLVED: To attempt the quality and amt. of a desired microorganism without affecting the growth of a granule by denitrifying the water treated in an anaerobic tank in a denitrification tank, nitrating the denitrified water in an aerobic tank, circulating the nitrated water to the denitrification tank and denitrifying the water. SOLUTION: Sewage is passed upward through a sludge bed in an anaerobic tank 1 and anaerobically treated, a denitrification tank 2 is provided above the anaerobic tank 1, and the water treated in the anaerobic tank 1 is denitrified. The org. matter remaining in the water treated in the denitrification tank 2 is decomposed, and the org. or ammoniacal nitrogen is nitrated into nitrite or nitrate nitrogen in an aerobic tank 5. The nitrated water is further circulated to the denitrification tank 2 and denitrified. Consequently, the quality and amt. of the desired microorganism are attained.

4. 发明专利

JP2000061485A SEWAGE TREATING FACILITY 失效
公开(公告)号：JP2000061485A
公开(公告)日：2000-02-29
申请号：JP23845298
申请日：1998-08-25
申请人： TOKYU KENSETSU KK
发明人： NAGANO MASATAKA , USUDA SOICHIRO , UEKI KYOKO
IPC分类号： C02F3/06 , C02F3/12 , C02F3/34
摘要： PROBLEM TO BE SOLVED: To effectively utilize an unused space of a structure by incorporating water purifying equipment for incorporating sewage to biologically and physicochemically purifying treatment into the structure. SOLUTION: A nitrification tank 2 is installed by making a good use of an inner space A of a structure 3 and is provided with one or plural purifying zones 8 hung down in the vertical inner space and a collecting vessel 9 for collecting treated water below the purifying zones 8. Water to be treated in a denitrification tank 1 can be sprayed to the purifying zones 8. The water to be treated in the denitrification tank 1 is sprayed to the upper part of the nitrification tank 2 formed in the structure 3 through a pipeline 14. And when the water to be treated gradually flows down while going along plural porous columnar bodies forming the purifying zones 8 one by one and passes through the contracted parts of the porous columnar bodies, oxygen in air is dissolved into the porous columnar bodies and the decomposition/nitrification by microorganisms stuck on the porous columnar bodies proceeds. Since the effectively usage of an unused space inside and outside the structure can be attained, necessary area required for construction of a sewage treating facility can be reduced.

5. 发明专利

JPH11285696A DEVICE AND METHOD FOR SEWAGE TREATMENT 失效
公开(公告)号：JPH11285696A
公开(公告)日：1999-10-19
申请号：JP8865998
申请日：1998-04-01
申请人： TOKYU KENSETSU KK
发明人： MOCHIDA ETSUO , YAI HIROYUKI , UEKI KYOKO , LALIT KUMAR AGURAWARU , HARADA HIDEKI
IPC分类号： C02F3/04 , C02F3/34
摘要： PROBLEM TO BE SOLVED: To enhance the treating performance and to shorten the treating time by preventing clogging of a filtering bed. SOLUTION: This device consists of an anaerobic tank 1 for performing an anaerobic treatment and a denitrogenation treatment by allowing sewage raw water to pass through a sludge bed in the tank with the upper counter current flow, and an aerobic tank 2 for performing decomposition of organic matter in the sewage raw water and nitrification of nitrogen in an organic state or an ammonia state to nitrogen in a nitrous acid state or a nitric acid state. The tanks 1, 2 are connected with a treated water return path 13 such that one portion of the water treated with the aerobic tank 2 is returned to the bottom of the anaerobic tank 1.

6. 发明专利

JPH10263578A CLEANING ZONE, CLEANING DEVICE AND METHOD FOR CLEANING SEWAGE 失效
公开(公告)号：JPH10263578A
公开(公告)日：1998-10-06
申请号：JP9314097
申请日：1997-03-27
申请人： TOKYU KENSETSU KK
发明人： UEKI KYOKO , MOCHIDA ETSUO , OKUI HIROYUKI , LALIT KUMAR AGURAWARU , HARADA HIDEKI , OHASHI AKIYOSHI
IPC分类号： C02F3/10 , C02F3/04
摘要： PROBLEM TO BE SOLVED: To exhibit a high sewage cleaning property by consisting of the cleaning device of columnar perforated columnar bodies and introducing water sheets of a porous structure connecting these perforated columnar bodies to each other and forming constricted parts to expose dropping water to air to the air between the perforated columnar bodies. SOLUTION: The sewage to be cleaned is supplied to sewage sprinkling means 4 from a supply pipe 52 from outside which is a sewage supplying means 5 disposed above a tank 2. When the prescribed volume of the sewage accumulates, the sewage leaks from the sits formed at the flanks of a vessel and flows down evenly over the entire width of a cleaning zone 3 disposed to face downward in the lateral parts of the sewage sprinkling means 4. The sewage flows down between the plural perforated columnar bodies disposed successively in the perpendicular direction of the introducing water sheets. At this time, the sewage flows down slowly while successively creeping along the respective perforated columnar bodies and, therefore, the sewage is successively decomposed and purified by the microorganism deposited on the performed columnar bodies. As this time, the fresh air is forcibly or naturally fed into the tank by an air supplying means 6, by which the effect of decomposing and cleaning the sewage by the microorganisms is made be made more vigorous.

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