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Analysis

1 / 3,596
1.2019181400WASTEWATER TREATMENT SYSTEM AND WASTEWATER TREATMENT METHOD
JP - 24.10.2019
Int.Class C02F 1/00
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
 Appl.No 2018078466 Applicant KURITA WATER IND LTD Inventor NAKANE KEISUKE

PROBLEM TO BE SOLVED: To provide a wastewater treatment system and wastewater treatment method that reduce wastewater treatment costs at wastewater treatment facilities while satisfying predetermined discharge standard values.

SOLUTION: The present invention provides a wastewater treatment system and a wastewater treatment method. The wastewater treatment system has: a wastewater treatment facility into which a part of the wastewater is introduced; a mixing unit that mixes the wastewater treated by the wastewater treatment facility and the remainder of the wastewater, and discharges the mixed water; and a control unit 10 for controlling the mixing ratio of the wastewater treated water and the remainder of the wastewater so that the water quality of the mixed water satisfies a predetermined standard. The mixing unit has a monitoring tank 5 into which the wastewater treated water and the remainder of the wastewater are introduced, a sensor 12 is provided for detecting the quality of the mixed water in the monitoring tank 5, and the control unit 10 controls the mixing ratio based on a detection result of the sensor 12.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2020,JPO&INPIT

2.2007075693METHOD AND APPARATUS FOR TREATING WASTE WATER
JP - 29.03.2007
Int.Class C02F 1/50
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
50by addition or application of a germicide or by oligodynamic treatment
 Appl.No 2005264567 Applicant CHUGOKU ELECTRIC POWER CO INC:THE Inventor FUJIWARA ATSUSHI

PROBLEM TO BE SOLVED: To provide a method and an apparatus for treating waste water, in each of which the treated water having the COD concentration exceeding a reference value can be hindered from being discharged to a public sea area and the COD concentration of the treated water is lowered in a short period of time, so that the treated water can be discharged.

SOLUTION: The apparatus for treating waste water comprises: a COD measuring means 11 for measuring the COD concentration of the treated water obtained by treating ammonia-containing waste water; a discharge stopping means 12 for stopping the discharge of the treated water when the COD concentration exceeds a stop reference value; a sterilizing means 14 for throwing a chlorine-based germicide in a waste water treatment tank, which is used for treating ammonia-containing waste water, to sterilize nitrous bacteria in ammonia-containing waste water; and a discharge reopening means 17 for discharging the treated water having the COD concentration lower than a discharge reference value.

COPYRIGHT: (C)2007,JPO&INPIT

3.WO/2021/132304WASTEWATER TREATMENT METHOD AND WASTEWATER TREATMENT APPARATUS
WO - 01.07.2021
Int.Class C02F 3/00
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
 Appl.No PCT/JP2020/048101 Applicant SANYO CHEMICAL INDUSTRIES, LTD. Inventor SUZUKI, Ryosuke
The purpose of the present invention is to provide a wastewater treatment method and a wastewater treatment apparatus, in each of which an enzymatic activity by a microorganism can be improved to reduce a load on a biological treatment tank in a wastewater treatment and thereby inhibit the formation of bulking, and a wastewater treatment efficiency can be improved to reduce the energy cost of an aeration tank.　The wastewater treatment method of the present invention comprises: a step of producing a culture solution for wastewater treatment use, the step comprising culturing a microorganism capable of secreting/producing a protein (A) that contributes to the decomposition of an organic substance in wastewater in a surfactant-containing culture solution that contains a surfactant (B) in a culture tank to allow the microorganism to secrete/produce the protein (A), thereby producing a culture solution for wastewater treatment use which contains the microorganism, the protein (A) and the surfactant (B); a culture solution addition step comprising adding the culture solution for wastewater treatment use to the wastewater from the culture tank; and a wastewater treatment step comprising carrying out the treatment of the wastewater with activated sludge in the presence of the culture solution for wastewater treatment use in a biological treatment tank.
4.2001232384WASTE WATER TREATMENT TANK, WASTE WATER TREATMENT DEVICE AND WASTE WATER TREATMENT METHOD
JP - 28.08.2001
Int.Class C02F 3/00
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
 Appl.No 2000050891 Applicant IGARASHI HIROSHI Inventor IGARASHI MASAJI

PROBLEM TO BE SOLVED: To provide a waste water treatment tank, a waste water treatment device and a waste water treatment method which enable satisfying the following requirements: plant cost and maintenance cost are low and also operating cost is scarcely required; the purification of waste water is satisfactory and soil contamination can be scarcely found; nitrogen and phosphor in the waste water also can be removed effectively; further, the usefulness for preventing the decrease of underground water; and the like.

SOLUTION: The waste water is introduced into the waste water treatment tank 31 buried in earth layers G1 and G2 for waste water treatment which have evapotranspiration action of moisture and aerobic property, and is treated in the tank. The waste water after treatment in made to overflow from the upper part of the waste water treatment tank 31 and is treated in the earth while being diffused into the earth layers G1 and G2 for waste water treatment. The waste water which is diffused and treated in the earth is evapotranspired from the inside of the earth layers G1 and G2 for waste waster treatment. The overflown waste water above mentioned is diffused in the radial direction in the earth layers G1 and G2 for waste water treatment by a diffusing board 33 of the outer peripheral part of the waste water treatment tank.

COPYRIGHT: (C)2001,JPO

5.2015155097METHOD AND EQUIPMENT FOR WASTEWATER TREATMENT
JP - 27.08.2015
Int.Class C02F 9/12
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
9Multistage treatment of water, waste water or sewage
08at least one step being a physical treatment
12Irradiation or treatment with electric or magnetic fields
 Appl.No 2015086023 Applicant KOBELCO ECO-SOLUTIONS CO LTD Inventor YAMAJI HIROKI

PROBLEM TO BE SOLVED: To provide a method and equipment for wastewater treatment which enable economical recovery of recycled water low in the residual TOC concentration, in treatment of wastewater containing a chemical ingredient(s).

SOLUTION: A method and equipment for wastewater treatment include introducing wastewater containing organic chemicals in high concentrations, in wastewater discharged from a production process, to a high-concentration wastewater treatment line, introducing wastewater containing organic chemicals in low concentrations to a low-concentration wastewater treatment line, carrying out a biological treatment step of treating organic matter in the wastewater with microorganisms and a physicochemical oxidation decomposition step in the high-concentration wastewater treatment line and carrying out a biological treatment step of treating wastewater not yet subjected to biological treatment by using microorganisms in the low-concentration wastewater treatment line.

COPYRIGHT: (C)2015,JPO&INPIT

6.2013215680WASTEWATER TREATMENT METHOD AND WASTEWATER TREATMENT APPARATUS
JP - 24.10.2013
Int.Class C02F 3/12
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
 Appl.No 2012088749 Applicant NISSIN ELECTRIC CO LTD Inventor TABATA TAKAO

PROBLEM TO BE SOLVED: To provide a wastewater treatment method and a wastewater treatment apparatus, in which temporal variation of an organic matter concentration in a real wastewater is obtained, and a treatment condition of an organic matter in a real wastewater treatment tank can be examined appropriately.

SOLUTION: In a wastewater treatment apparatus 1 that uses a wastewater treatment method by an activated sludge process that biologically processes organic wastewater, only a real wastewater supplied to a real wastewater treatment tank 12 when temporal variation of an organic matter concentration in a real wastewater is obtained, and an real sludge exhausted from the real wastewater treatment tank 12 in addition when a treatment state of an organic matter in the real wastewater treatment tank 12 is simulated are continuously or intermittently supplied to a miniature simulation tank 21 of a miniature simulation device, and then aeration is conducted. Thereafter, the concentration of carbon dioxide exhausted into the atmosphere along with organic matter decomposition reaction in the miniature simulation tank 21 is measured.

COPYRIGHT: (C)2014,JPO&INPIT

7.2013081925METHOD AND APPARATUS FOR TREATING WASTEWATER
JP - 09.05.2013
Int.Class C02F 3/12
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
 Appl.No 2011225295 Applicant NISSIN ELECTRIC CO LTD Inventor TABATA TAKAO

PROBLEM TO BE SOLVED: To provide a method and apparatus for treating wastewater, which can precisely and continuously grasp a treatment condition of an organic substance in an actual wastewater treatment tank.

SOLUTION: There is provided the apparatus 1 for treating wastewater using the method for treating wastewater by an activated sludge method in which organic wastewater is biologically treated in which actual wastewater to the actual wastewater treatment tank 12 and actual sludge discharged from the actual wastewater treatment tank 12 are continuously supplied to a miniature reaction tank 21 and then aeration is executed and the concentration of carbon dioxide gas (CO2) is measured which is discharged in atmosphere in accordance with an organic substance decomposing reaction in the miniature reaction tank 21.

COPYRIGHT: (C)2013,JPO&INPIT

8.2023023108WASTEWATER TREATMENT METHOD, WASTEWATER TREATMENT APPARATUS, AND CARRIER FOR WASTEWATER TREATMENT
JP - 16.02.2023
Int.Class C02F 3/10
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
10Packings; Fillings; Grids
 Appl.No 2021128331 Applicant TOYO UNIV Inventor ISAKA KAZUICHI

PROBLEM TO BE SOLVED: To provide a wastewater treatment method, a wastewater treatment apparatus, and a carrier for wastewater treatment capable of performing stable nitrogen treatment.

SOLUTION: Disclosed is a wastewater treatment method for denitrification treatment of wastewater by bringing ammonia-containing wastewater into contact with a carrier for wastewater treatment 12 in a reaction tank 14 accommodating the carrier for wastewater treatment 12 containing ammonia oxidation bacterium and anamox bacterium, wherein dissolved oxygen concentration of wastewater in the reaction tank 14 is controlled to 0.5 mg/L or over and 4.0 mg/L or under, and wastewater in the reaction tank 14, or, ammonia concentration of treatment water discharged from the reaction tank 14 is controlled to 10 mg/L or over and 500 mg/L or under. Also, a wastewater treatment apparatus for executing this wastewater treatment method, and, a carrier for wastewater treatment used for this wastewater treatment method are disclosed.

SELECTED DRAWING: Figure 8

COPYRIGHT: (C)2023,JPO&INPIT

9.2016190203WASTEWATER TREATMENT METHOD AND WASTEWATER TREATMENT DEVICE
JP - 10.11.2016
Int.Class C02F 3/12
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
 Appl.No 2015071676 Applicant HOKKAIDO UNIV Inventor KIMURA KATSUTERU

PROBLEM TO BE SOLVED: To provide a wastewater treatment method and a wastewater treatment device capable of achieving stable operation with suppression of membrane blockage, in wastewater treatment for treating wastewater containing an organic matter with a membrane separation activated-sludge method.

SOLUTION: There are provided a wastewater treatment method and a wastewater treatment device, for operating under presence of a sponge-state carrier 18 whose density is equal to or higher than 35 kg/m3 in a biological reaction tank 12 in wastewater treatment for treating wastewater containing an organic matter with a membrane separation activated-sludge method.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2017,JPO&INPIT

10.2006289343METHOD AND APPARATUS FOR TREATING WASTE WATER
JP - 26.10.2006
Int.Class C02F 3/34
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
34characterised by the microorganisms used
 Appl.No 2005366696 Applicant SHARP CORP Inventor YAMAZAKI KAZUYUKI

PROBLEM TO BE SOLVED: To provide a method and an apparatus for treating waste water by which water to be treated and malodorous gas are efficiently treated and the initial cost and the running cost are reduced.

SOLUTION: In the apparatus and the method of treating waste water, the waste water containing amino ethanol and dimethyl sulfoxide is introduced into a denitrification vessel 1 provided in a 1st waste water treating apparatus 28, the malodorous gas produced in the 1st waste water treating apparatus 28 is decomposed in a 2nd waste water treating apparatus 29 of a separated line carrying out a separated waste water treatment, the 2nd waste water treating apparatus 29 for decomposing the malodorous gas has a 2nd nitrification vessel 20 having a semi-anaerobic part 25 and the malodorous gas introduced into a scrubber 11 from the 1st waste water treating apparatus 28 is treated with sludge circulated between the 2nd nitrification vessel 20 and the scrubber 11.

COPYRIGHT: (C)2007,JPO&INPIT

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