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1.1995018726WASTE WATER TREATMENT DEVICE

JP - 20.01.1995

Int.Class E03F 5/00 Appl.No 1993191759 Applicant MITSUI CONSTR CO LTD Inventor BABA FUMIHIRO

PURPOSE: To reduce the amount of area required for installing a waste water treatment device and to make it possible to purify a large quantity of waste water in a stable manner.

CONSTITUTION: A treatment tank body 2 comprises a first, second, and third treatment tank 3A, 3B, 3C each including therein a treatment space 3f, wherein the treatment spaces are stacked on one another so that the spaces are in vertical communication with each other, and a receiving inlet port 2a is provided in the lowermost tank 3A so as to communicate with the treatment space thereof. A water-intake part 2b is provided in the tank 3C at the uppermost part of the treatment tank body so as to communicate with the treatment space of the tank 3C. A bioreactor 10 is provided in each of the treatment spaces and an air feed device 20 is connected to the treatment tanks so as to feed air 60 to each of them.

2.1994108524SEWAGE DISPOSAL DEVICE

JP - 19.04.1994

Int.Class E03F 5/00 Appl.No 1992285192 Applicant MITSUI CONSTR CO LTD Inventor MOTOYAMA ATSUSHI

PURPOSE: To dispose of sewage efficiently in a sewage disposal plant.

CONSTITUTION: A suction pipe 6 of approx. 50 to 150m in depth is located just below a manhole 3 in the form connected with a sewage pipe 2. A lifting pipe 7 capable of feeding water between the bottom 6b of the suction pipe and the sewage pipe is provided in the suction pipe. Also blowing ports 11 and 12 are provided in the suction pipe and lifting pipe, respectively, so that air 22 generated from a compressor 10 can be blown. In addition, sewage is taken out from midway in the lifting pipe and returned back to the suction pipe, and activated sludge 26 in sewage is accumulated in a storing tank 52 so that it can be taken out freely.

3.3127152大型水槽の点検修復装置

JP - 01.11.2006

Int.Class E03F 9/00 Appl.No 2006007317 Applicant オリジナル設計株式会社 Inventor 菅　脩

【課題】
本考案は、下水処理場，公共，事業用などの大型水槽を液体を収容し稼働したまま点検および修復することのできる大型水槽の点検・修復用の装置を新規に提供するものである。
【解決手段】
本考案は、下水処理場を含む公共，事業用などの大型水槽を液体を収容した稼働状態下において点検および修復する装置であって、下端に密着用の蛇腹筒を有すパイプを該大型水槽内に挿立て、該パイプ内の液体を吸引排出し、該パイプの上端開口より遠隔操作する自走ロボットを底面上に吊り入れ、該自走ロボットに搭載する監視カメラ，点検器具，補修材充填ノズル等にて、該大型水槽内を点検し、修復するようにしたことを特徴とする大型水槽の点検修復装置にある。
【選択図】図３

4.2020138128WATER PROCESSOR FOR SIMPLIFYING REMOVAL OF SCALE OF FASTENED ALGAE, CLEANING METHOD, AND COATING

JP - 03.09.2020

Int.Class C02F 1/00 Appl.No 2019034944 Applicant SWING CORP Inventor KOIZUMI YOSHIAKI

PROBLEM TO BE SOLVED: To provide a water processor that is excellent in removability of algae, can lighten a work burden during removal operation and can lighten damage of equipment, and can be stably operated for a long time, a cleaning method of the water processor, and a coating.

SOLUTION: A water processing plant including a sewage treatment plant, and/or an industrial water supply, and/or a urine processing plant, and/or a waste final disposal site, and/or a water processing and/or sludge processing equipment installed in a general factory, and an accessory equipment such as piping thereof, in which on a surface that contacts with a liquid to be processed and to which the algae can attach, a coating provided with the following characteristics of (1) to (4) is provided. (1) The coating contains 1 to 90 wt% of silicone oil. (2) A coating surface has a paraffin contact angle of 30° or larger. (3) A dynamic friction coefficient on the coating surface due to three-point steel ball is 0.15 or smaller. (4) A thickness of the coating is 5 to 2000 μm or larger.

SELECTED DRAWING: None

5.2006177060COMBINED SEWER PIPING CLEANING SYSTEM

JP - 06.07.2006

Int.Class E03F 9/00 Appl.No 2004371797 Applicant HITACHI LTD Inventor MIZUMI SHIYUNSUKE

PROBLEM TO BE SOLVED: To reduce a polluted-matter load imposed on a river by combined overflow water in rainy weather.

SOLUTION: Flushing water supply means 10a-10e for allowing the inflow of flushing water for cleaning the inside of sewer piping from the outside of a sewer piping net are arranged in a decentralized manner in upstream-side small-diameter combined sewer piping 30a-30c and midstream-position midsize-diameter combined sewer piping 31; and a central control unit 50 for performing the remote control of the means 10a-10e is provided. The flow-down speed, a time of a concentration, and a flow rate of water in the piping are estimated by numerical simulation, and the timing of the start of the supply of flushing water from each flushing water supply means is determined so that leading sections of water flowing from respective tributary sections can almost concurrently reach a combined section each time water flows downstream. Rainwater or water which is poured from a river is stored in the water storage tank 14 of each of the means 10a-10e, and the flushing water is made to flow into the sewer piping on the basis of the timing before the start of a rainfall, when the estimated amount of the rainfall equals or exceeds a reference value.

6.1996165704SOIL PIPE

JP - 25.06.1996

Int.Class E03F 5/00 Appl.No 1994308546 Applicant KUBOTA CORP Inventor INOUE SHIZUO

PURPOSE: To reduce waste water treatment equipments and their installation spaces of a sewage treatment plant.

CONSTITUTION: A group of usefull microbes are mixed with a lining layer 2 of the internal circumference of a soil pipe 1. Finally, a group of useful microbes such as photosynthetic germ, yeast fungus, lactic acid bacteria, aspergilli, etc., are mixed with clay to make ceramic, ceramic materials 3 containing a group of useful microbes are smashed into powder, it is mixed with a lining material, and the soil pipe 1 is manufactured by pouring the lining material in the pipe while revolving a ductile cast iron pipe. Since the ceramic materials 3 containing a group of useful microbes are mixed with a lining layer 2 of the internal circumference of the pipe of the soil pipe 1, when soil water 4 is flowed inside the soil pipe 1, the soil water 4 is purified with a group of useful microbes at that time, and purification capacity of a sewage treatment plant is reduced by that portion in comparison with that of a conventional one to make it possible to accomplish its function.

7.1994108523SEWAGE CONSTRUCTION

JP - 19.04.1994

Int.Class E03F 5/00 Appl.No 1992285191 Applicant MITSUI CONSTR CO LTD Inventor MOTOYAMA ATSUSHI

PURPOSE: To reduce load for sewage disposal by increasing the amount of dissolved oxygen in sewage to improve the quality of water midway in a sewage pipe through which sewage flows.

CONSTITUTION: A compressor is operated to open a valve 16 for blowing air 22 upwards from a blowing port 12 and mixing air 22 into sewage 20 filled into a lifting pipe 7. By this, the density of sewage 20 in the lifting pipe 7 becomes lower apparently than that in a suction pipe 6. Then sewage 20 in the suction pipe 6 flows from a suction port 7a into the lifting pipe 7, and returns from the upper exhaust port 7b into a sewage pipe 2. When this flow reaches a specified flow velocity, a valve 15 is opened to blow air 22 downward from a blowing port 11. The air 22 lowers to a suction pipe bottom part 6b, and dissolves in sewage 20, which increases the amount of dissolved oxygen to increase the quality of water.

8.1997273189METHOD OF FLEXIBLE-SHEET LINING CONSTRUCTION

JP - 21.10.1997

Int.Class E03B 11/00 Appl.No 1996111172 Applicant UEDA SUKENORI Inventor TANABE KAZUO

PROBLEM TO BE SOLVED: To prevent the infiltration of leaked water and sewage by fixing a flexible sheet into a structure such as a concrete tank by bolts, etc., and joining the flexible sheet by a welding means, etc.

SOLUTION: A flexible sheet 4 is cut by using a tool such as a cutter, a scissor, etc., in a size conformed to the internal structure of a structure 1 such as a concrete tank, a wooden tank, a plastic tank, a steel tank, etc. The flexible sheet 4 is abutted against the inner wall surface 3 of the structure 1 while bolts 5 are driven to the inner wall surface 3, and the flexible sheet 4 is fixed onto the inner wall surface 3. The end faces of the flexible sheet 4 are joined by welding or surface bonding while the flexible sheet 4 is abutted against the upper sections of the bolts 5 and welded or surface-bonded.

9.2004339813PHOTOCATALYST/HOT WATER INJECTION TYPE SIDE DITCH FOR DRAINAGE

JP - 02.12.2004

Int.Class E03F 9/00 Appl.No 2003138232 Applicant FUJIYA:KK Inventor FUJITANI YORISUKE

PROBLEM TO BE SOLVED: To provide a safe and sanitary side ditch for drainage capable of killing various bacteria or microbes adhering and growing on an inner surface of a drain ditch by thermally spraying titanium oxide as a photocatalyst to an inner surface of the side ditch for the drainage and an inner surface of a side ditch cover, and accelerating photocatalytic action and the dissolution/separation of adhering filthy matters by injecting/jetting hot water.

SOLUTION: In this safe and sanitary drain ditch, wherein chemical agents for cleaning, disinfection and sterilization are not used, titanium oxide as the photocatalyst is thermally sprayed onto the inner surface of a drain ditch body 2 and the inner surface of the side ditch cover 1; the various bacteria or the microbes adhering and growing on the inside of the drain ditch are killed by using ultraviolet rays incident from the cover part 1; the hot water (60-70C) is automatically injected/jetted from a hot-water injection port 3 through a motor operated valve 4 to accelerate the photocatalytic action; and heat of the hot water kills the various bacteria or the microbes, and dissolves/separates the filthy matters.

10.2001140294NON-INTERRUPTED WATER CLEANING METHOD OF INSIDE OF WATER STORAGE TANK WITHOUT ANY SUSPENSION OF WATER SUPPLY IN WATERWORKS FACILITIES

JP - 22.05.2001

Int.Class E03B 11/00 Appl.No 1999356393 Applicant NODAKKU KK Inventor HOASHI NORIYUKI

PROBLEM TO BE SOLVED: To securely eliminate and clean deposits at the bottom of a water storage tank, contamination of a wall surface, or the like without suspending water supply by draining water in the cleaning of the inside of the water storage tank such as waterworks facilities.

SOLUTION: A disinfecting bathtub filled with a disinfectant for sanitary control is provided, and a cleaning worker wears a waterproof suit for underwater operation for covering the whole body and at the same time is soaked in the disinfecting bathtub for disinfecting, thus enabling the cleaning worker to gounder water in a water storage tank 10. Also, by using a self-suction-type pump 15 and a suction hole 16 being disinfected while being connected to the self-suction-type pump and soaked into the disinfecting bathtub, the cleaning worker can suck, eliminate, and clean deposits at the bottom of the storage tank, contamination of a wall surface, or the like in water along with water.

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