WO1999000332A1 - Appareil et procede de traitement des eaux usees - Google Patents

Appareil et procede de traitement des eaux usees Download PDF

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Publication number
WO1999000332A1
WO1999000332A1 PCT/JP1997/002243 JP9702243W WO9900332A1 WO 1999000332 A1 WO1999000332 A1 WO 1999000332A1 JP 9702243 W JP9702243 W JP 9702243W WO 9900332 A1 WO9900332 A1 WO 9900332A1
Authority
WO
WIPO (PCT)
Prior art keywords
wastewater
tank
treatment
treatment tank
oil
Prior art date
Application number
PCT/JP1997/002243
Other languages
English (en)
Japanese (ja)
Inventor
Chikashi Ishimaru
Hiroshi Fujino
Original Assignee
Chikashi Ishimaru
Hiroshi Fujino
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chikashi Ishimaru, Hiroshi Fujino filed Critical Chikashi Ishimaru
Priority to PCT/JP1997/002243 priority Critical patent/WO1999000332A1/fr
Publication of WO1999000332A1 publication Critical patent/WO1999000332A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/08—Aerobic processes using moving contact bodies
    • C02F3/085—Fluidized beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the present invention relates to a wastewater treatment device, and more particularly, to a wastewater treatment device and a wastewater treatment method for organically decomposing and treating organic matter and oil contained in wastewater discharged from a kitchen or the like in a treatment tank.
  • FIG. 3 is a sectional view showing a main part of a conventional wastewater treatment device.
  • the conventional wastewater treatment system consists of a treatment tank 60 for treating wastewater and a collection basket 70 for collecting organic matter such as vegetable waste contained in the wastewater discharged to the treatment tank. And an oil gap 80 for removing oil contained in the wastewater.
  • the treatment tank 60 has an outer peripheral wall and a bottom surface, and has a substantially box shape. At the center of the bottom surface of the substantially box shape, a thin bottom partition having a predetermined height and projecting vertically from the bottom surface is provided. A plate 61 is provided. On both sides of the bottom partition plate 61, there are provided thin top partition plates 68a and 68b extending parallel to the bottom partition plate 61 and extending from the top of the processing tank 60 and having an open bottom. .
  • An inlet 62 and a discharge port 64 for purifying and discharging this wastewater are provided.
  • the first tank 60a is formed between the side surface on which the inlet 62 of the processing tank 60 is formed and the upper partition plate 68a, and is opposed to each other.
  • a second tank 6 Ob is formed between the upper partition plates 68a and 68b, and a third tank is formed between the side of the processing tank having the discharge port 64 and the upper partition plate 68b. 6
  • wastewater from a kitchen or the like is purified by flowing from the first tank 60a to the second tank 60b and the third tank 60c in order, and is discharged from the discharge port 64.
  • a collection basket 70 for removing solid-state organic matter such as vegetable waste contained in wastewater from a kitchen or the like is immersed.
  • the collecting basket 70 is formed in a stitch shape so that solid organic matter such as vegetable waste can be removed from the wastewater, and is immersed so as to fit into the first tank 60a.
  • an oil gap 80 is attached to a third tank 60c in the processing tank 60 such that the bottom is immersed in the water surface.
  • the oil skimmer 80 has a belt 84 mounted on a rotating shaft 86 opposed in parallel, and a plurality of spats 82 for attaching and removing an oil component on the outer periphery of the belt 84.
  • a motor 90 is connected to the rotating shaft 86 of the oil skimmer 80, and the belt 84 and the spatula 82 are rotated in conjunction with each other when the motor 90 rotates.
  • wastewater discharged from a kitchen or the like flows out of the treatment tank 60 through an inlet 62 of the treatment tank 60.
  • solid waste such as vegetable waste contained in the wastewater is removed by the recovery basket 70 from the wastewater flowing into the tank.
  • the wastewater from which organic matter has been removed flows out to the second tank 60b through the bottom of the upper partition plate 68a, and floats to the upper part because it passes through the bottom partition plate 61 provided at the bottom of the processing tank 60.
  • the wastewater that floats at the top contains oil and the like discharged from the kitchen at the same time. ing. Therefore, the specific gravity of oil is about 0.9, while the specific gravity of water is about]: 0.0. Due to this difference in specific gravity, the oil contained in the wastewater separates from the water and rises to the top.
  • the wastewater that has flowed into the second tank 60b oil and water are separated from each other, and oil is stored in the upper part and water is stored in the lower part.
  • the water stored in the lower part of the second tank 60b flows out to the third tank 60c by the water flow of the wastewater flowing out from the inlet 62.
  • the oil floating on the upper portion of the second tank 60b is partitioned by the upper partition plates 68a and 68b and remains in the tank.
  • the wastewater separated from the oil and flowing out to the third tank 6Ob is discharged to the sewage from the discharge port 64 as new drainage flows in and the water surface rises to the height of the discharge port 64.
  • an oil skimmer 80 is attached to the third tank, and oil that could not be removed in the second tank 60b is removed again.
  • the rotation shaft 86 and the belt 84 rotate in conjunction with the rotation of the motor 90, so that the spatula 82 provided on the outer periphery of the belt 84 rotates along the belt 84.
  • the oil remaining in the wastewater is attached to a spatula 82 and removed.
  • conventional wastewater treatment equipment purifies wastewater by separating and removing organic matter such as garbage and oil contained in wastewater from kitchens and the like through the treatment tank, and discharges the wastewater to sewage. .
  • the organic matter rots and remains in the treatment tank, and the oil component is oxidized to generate hydroelectric water, thereby causing the treatment tank to become unsanitary and anaerobic. As a result, there was a problem that an unpleasant odor was filled in the treatment tank.
  • the present invention solves such a problem of the prior art, and can constantly maintain the inside of the treatment tank in an aerobic state, and can easily clean the inside of the tank without leaving any organic matter or oil in the tank. And to provide wastewater treatment methods.
  • a plurality of holes having a treatment section for organically decomposing oil and organic substances contained in wastewater from a kitchen and a discharge section for discharging the organically decomposed wastewater are provided.
  • a treatment tank separated by a partition member having a section is provided, and an air supply means is provided for supplying air to the wastewater in the treatment tank and performing air ration (aeration) to organically decompose oil and organic substances contained in the wastewater.
  • the apparatus is provided with a carrier for microorganisms that has been introduced into a treatment section in the treatment tank, and a stirring means for stirring the wastewater in the treatment tank supplied with air by the air supply means and the carrier.
  • a culturing device for culturing bacteria that decompose organic matter organically is provided in the treatment part of the treatment tank as described in claims 2 to 5, the bacteria are supplied into the tank, and oil is further removed from the organically decomposed wastewater.
  • Oil removal means is installed, and air supply means is equipped with one or both of an ejector and a blower pump.
  • a fiber wood piece on which microorganisms can propagate is used as a carrier. This As a result, oil and organic matter contained in the wastewater can be rapidly and effectively removed and organically decomposed.
  • wastewater treatment method of the present invention for purifying and discharging oil and organic matter contained in wastewater from a kitchen or the like in a treatment tank, as described in claim 6, oil and organic matter from a kitchen or the like into a treatment tank.
  • the wastewater is treated by a process comprising a charging process of charging the carrier, and a stirring process in which the aerated wastewater in the treatment tank and the carrier are agitated to form an emulsion (emulsion) and organically decompose. .
  • organic matter such as oil and vegetable waste is organically decomposed by microorganisms such as patella in the treatment tank, so that the inside of the treatment tank is always kept in an aerobic state, and the unpleasant odor in the treatment tank can be reduced. .
  • an organic substance supply step of culturing organic substances by a culture device and supplying the organic substances into the tank is provided for high-speed treatment in the treatment tank.
  • organic decomposition of organic substances can be performed at high speed.
  • FIG. 1 is a configuration diagram showing a main part of an embodiment of a wastewater treatment apparatus according to the present invention as viewed from above.
  • FIG. 2 is a cross-sectional view showing a main part of the apparatus shown in FIG. 1 as viewed from the side.
  • FIG. 3 is a sectional view showing a main part of a conventional wastewater treatment device.
  • FIG. 1 is a configuration diagram showing a main part of an embodiment of a wastewater treatment apparatus according to the present invention as viewed from above.
  • the wastewater treatment apparatus treats wastewater. -
  • Processing tank lo Processing tank lo, ejector 22 and blower pump 40 for supplying air to this processing tank 10 for air reduction (aeration), fluidized bed pump 30 for stirring inside the air-conditioned tank, and drainage And an oil separation device 24 for removing the oil component.
  • Fertilizer chips which are microbial carriers for organically decomposing oil and organic substances contained in wastewater from kitchens and the like, are charged into the treatment tank 10.
  • the processing tank 10 has an outer peripheral wall and a bottom surface, is formed in a substantially box shape, and has a punch plate 18 mounted on the inside to partition the inside of the tank.
  • the punch plate 18 is formed in a thin plate shape and has a plurality of through-holes on the surface.
  • an inlet 12 for allowing waste water to flow into the tank, and a discharge port 14 for organically decomposing and discharging the waste water.
  • the inside of the processing tank 10 is divided into a first tank 10a formed on the inlet 12 side and a second tank 10b formed on the discharge port 14 side with the punch plate as a boundary. Each is provided.
  • the wastewater flowing from the kitchen etc. flows into the first tank 10a via the inlet 12 and the oil and organic substances contained in the wastewater are organically decomposed, pass through the punch plate 18 and pass through the second tank 10O It flows out to b and is discharged from the discharge port 10 b.
  • fern chips such as fiber wood chips are inserted.
  • a fluidized bed pump 30 mounted on the bottom surface and stirring the inside of the first tank 10a is provided.
  • the fluidized bed pump 30 is provided to agitate the drainage in the tank by the power of the pump.
  • a submersible pump 20 is mounted on the inner bottom surface of the second tank 1 Ob of the treatment tank 10 so as to be immersed in the drainage in the tank.
  • An ejector 22 is attached to the submersible pump 20. This ejector 22 is from the submersible pump 20
  • a vacuum pressure is supplied to generate a negative pressure in the ejector 22 so that a large amount of air can be supplied into the processing tank 10-.
  • the submersible pump 20 is connected to an oil separation device 24 provided outside, supplies wastewater from the treatment tank 10 to the oil separation device 24, removes oil in this device, and recycles the treatment tank. It has a structure to return it to within 10.
  • the oil separating device 24 contains, for example, an oil adsorbent mat (not shown) formed of a material such as polypropylene.
  • the oil separating device 24 is designed so that the wastewater flowing into the device by the submersible pump 20 is passed through an oil adsorbent mat (not shown) to adsorb the oil contained in the wastewater to the oil adsorbent mat. It has become.
  • the blower pump 40 has a structure for supplying air into the processing tank 10 as in the case of the injector 22.
  • the blower pump 40 is connected to a pipe 42 that is immersed in the processing tank 10 and supplies air.
  • the pipe 42 has a rod-shaped hollow cavity, and a plurality of through-holes 42 a penetrating from the cavity to the outside are formed. As described above, the pipe 42 supplies air into the processing tank by supplying air from the blower pump 40 to the through hole 42a through the cavity and discharging the air.
  • a culture box 50 for culturing bacteria outside the treatment tank 10 and supplying it to the first tank 10a is installed. It is desirable to do.
  • the culture box 50 has three culture tanks that divide the inside of the box into three parts, a raw water primary treatment tank 52 for pre-treating raw water, a bacterial culture tank 54 for culturing bacteria, and a final It consists of a standby tank 56 for adjustment.
  • the bacteria in the culture box 50 are time-controlled and are sequentially transferred from a raw water primary treatment tank 52 to a standby tank 56 by a pump (not shown), and are gradually cultured in this process. In this way, when the final adjustment is made in the standby tank 56 and the cultivation of the bacteria is completed, the bacteria are time-controlled in the processing tank 10. -
  • FIG. 2 is a cross-sectional view showing a main part of the apparatus shown in FIG. 1 as viewed from the side. 5 As shown in FIG. 2, wastewater containing oil and organic matter discharged from a kitchen or the like flows into the treatment tank 10 through the inlet 12.
  • the blower pump 40 is operated to supply air to the pipe 42.
  • the submersible pump 20 is operated to supply compressed air to the ejector 22.
  • the air supplied to the pipe 42 flows out of the plurality of through holes formed in the pipe 42 into the first tank 10a. Also, the compressed air supplied to the injector 22 rapidly takes in external air due to the negative pressure and causes a large amount of air to flow into the first tank 10.
  • the inside of the tank is air-rated and maintained in an aerobic state.
  • the fern chips 1 serving as a carrier for microorganisms such as fiber wood chips are put into the treatment tank 10.
  • the fluidized bed pump 30 is driven to perform an operation of stirring the inside of the tank.
  • oil contained in organic matter such as garbage and the like are mixed with air, so that the wastewater in the treatment tank 10 is converted into an emulsion (emu1sio0n: emulsion).
  • the organic matter in the treatment tank 10 and the fern chips 1 are stirred and brought into contact with each other, whereby the organic matter is finely decomposed, and the wastewater 25 in the treatment tank 10 is emulsified.
  • the first tank 10a in the processing tank 10 is partitioned by the punch plate 18 and the fern chips 1 flow into the discharge port 14 and are not discharged. Aerobic microorganisms such as growing bacteria grow fast You. Therefore, the microorganisms that propagate in the fern chips 1 decompose the oil contained in the wastewater emulsified in the treatment tank 1-0. The fats and oils are decomposed into fatty acids by hydrolyzing the emulsified waste water by lipase, and finally decomposed completely to the stage of carbon dioxide and water.
  • fertilizer chips are put into the emulsified wastewater and stirred, and as described in the specification of Japanese Patent Application No. Hei 7-310709, the wastewater is emulsified and fertilized chips.
  • Bacteria such as bacilli and cocci are naturally propagated using organic waste in this mixed solution.
  • pecteria which produces extracorporeal enzymes, play a central role in hydrolyzing carbohydrates contained in organic matter into sugars, fatty acids into fatty acids, and proteins into amino acids.
  • the number of cells (carcasses of bacteria), mainly bacilli, increases, and the microbes that inhabit the fern chip use these cells to eliminate the organic matter.
  • a culture box 50 is provided outside the treatment tank to cultivate bacteria, and the bacteria are introduced from the culture box 50 into the treatment tank 10. It is desirable to provide them.
  • the culture box 50 has three culture tanks that divide the inside of the box into three parts, a raw water primary treatment tank 52 for pre-treating raw water, a bacterial culture tank 54 for culturing bacteria, and a final It consists of a standby tank 56 for adjustment.
  • the raw water primary treatment tank 52 stores mineral ore and tap water in the tank, supplies oxygen, and performs pretreatment of the raw water.
  • the bacterial cultivation tank 54 is configured to reproduce the raw water pretreated in the raw water primary treatment tank 52 by a pump, and to control and supply the seed bacteria and the culture solution in a timely manner so that bacteria can be propagated.
  • the standby tank 56 supplies the bacteria cultured in the bacterial culture tank 54 with a pump, mixes various adjustment liquids, and performs final adjustment. By supplying the cultivated cultivation in the standby tank 56 into the processing tank 10, organic decomposition can be performed at high speed. Can be managed. -In the culture box, microorganisms that can decompose organic substances such as oils, fats, proteins and carbohydrates are cultivated. Time is controlled and released into the treatment tank.
  • the organically decomposed wastewater passes through the punch plate 18 and flows out into the second tank 1 Ob.
  • the wastewater that has flowed into the second tank 1Ob is discharged to the outside sewage through the discharge port 14 when new wastewater flows in and is stored to the height of the inlet 12 and the discharge port 14.
  • the submersible pump 20 immersed in the bottom of the second layer supplies the wastewater that is organically decomposed in the first layer 10a and flows out into the second layer 10b through the punch plate to the oil separation device 24. .
  • the wastewater supplied to the oil separation device 24 passes through an oil adsorbent mat (not shown) mounted in the oil separation device 24 and is supplied again into the tank. As a result, oil adheres to the oil adsorbent mat (not shown), and the oil in the wastewater is completely removed.
  • the apparatus for supplying oxygen into the treatment tank of the wastewater treatment apparatus of the present invention is not limited to using both an ejector and a blower pump, and may be any one depending on the size of the treatment tank.
  • the device for stirring the inside of the processing tank is not limited to the fluidized bed pump, and for example, the stirring may be performed by power such as a propeller.
  • the carrier of the microorganism has been described as a fern chip, it is not limited to cedar wood (fern), and may be, for example, a strip of other wood or an artificially made one.
  • the present invention is not limited to mounting a culture box for culturing bacteria in the treatment tank, and may be used only for high-speed processing.
  • Organic matter such as vegetable waste and oil contained in wastewater from the kitchen can be organically decomposed in batches in the treatment tank, and it can be used as a treatment device for kitchens and household wastewater in restaurants, etc. It is possible to prevent rust from remaining and rot, and also to prevent the generation of hydraulic power due to oxidation of oil in the tank. This eliminates the need to periodically clean the equipment.
  • microorganisms such as bacteria decompose organic matter such as vegetable oil and vegetable oil into organic matter in the treatment tank, so that the inside of the treatment tank is always kept in an aerobic state and unpleasant odor in the treatment tank is reduced. It is suitable for use in places where organic matter such as trash and oil are discharged.

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Cette invention concerne un appareil de traitement des eaux usées qui comprend un réservoir de traitement (10) divisé en deux réservoirs. Le premier réservoir (10a) sert à la décomposition organique d'un composant huileux et des substances organiques que contiennent les eaux usées provenant de cuisines ou d'autres lieux similaires. Le second réservoir (10b) sert au refoulement des eaux usées qui ont été soumises au processus de décomposition organique et, à cette fin, comprend une plaque perforée (18) qui comporte plusieurs orifices. Un éjecteur (22) et une pompe soufflante (40) vont envoyer de l'air dans les eaux usées se trouvant dans le réservoir de traitement de manière à les aérer. Une pompe à lit fluidisé (30) va charger des copeaux de cèdre et les agiter avec les eaux usées dans le réservoir de traitement (10), ceci de manière à effectuer la décomposition organique du composant huileux et des substances organiques que contiennent les eaux usées stockées dans le premier réservoir (10a) dudit réservoir de traitement (10). L'agitation et l'aération dans le réservoir de traitement (10) permettent ainsi d'effectuer une émulsion ainsi que la décomposition organique des eaux usées.
PCT/JP1997/002243 1997-06-27 1997-06-27 Appareil et procede de traitement des eaux usees WO1999000332A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1997/002243 WO1999000332A1 (fr) 1997-06-27 1997-06-27 Appareil et procede de traitement des eaux usees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1997/002243 WO1999000332A1 (fr) 1997-06-27 1997-06-27 Appareil et procede de traitement des eaux usees

Publications (1)

Publication Number Publication Date
WO1999000332A1 true WO1999000332A1 (fr) 1999-01-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6519787B2 (en) * 2001-02-01 2003-02-18 Juen S. Kim Toilet water recycling system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874186A (ja) * 1981-10-29 1983-05-04 Kureha Chem Ind Co Ltd 生物学的汚水処理剤
JPS6021396U (ja) * 1983-07-20 1985-02-14 株式会社　西原環境衛生研究所 好気性流動床装置
JPS6028888A (ja) * 1983-07-28 1985-02-14 Nanyou Kyokai 有機物含有原液の微生物による浄化方法
JPS6295197A (ja) * 1985-12-09 1987-05-01 Katsumi Iida 接触酸化生物ろ過装置
JPH03178395A (ja) * 1989-12-05 1991-08-02 Nippon Steel Corp 生物学的処理方法
JPH06277657A (ja) * 1993-01-19 1994-10-04 Eiichi Tashiro 排水中の油分の除去方法
JPH07308691A (ja) * 1994-05-20 1995-11-28 Daiyamondo Enterp:Kk 複合微生物の自動投入方法及びその装置
JPH0910757A (ja) * 1995-06-28 1997-01-14 Meisui:Kk 厨房床排水用浄化装置
JPH09150178A (ja) * 1995-11-29 1997-06-10 Asetsuto Enterp:Kk 有機廃棄物処理用チップ及び処理方法
JPH09155385A (ja) * 1995-12-13 1997-06-17 Clean Tec Kk 厨芥排水処理方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874186A (ja) * 1981-10-29 1983-05-04 Kureha Chem Ind Co Ltd 生物学的汚水処理剤
JPS6021396U (ja) * 1983-07-20 1985-02-14 株式会社　西原環境衛生研究所 好気性流動床装置
JPS6028888A (ja) * 1983-07-28 1985-02-14 Nanyou Kyokai 有機物含有原液の微生物による浄化方法
JPS6295197A (ja) * 1985-12-09 1987-05-01 Katsumi Iida 接触酸化生物ろ過装置
JPH03178395A (ja) * 1989-12-05 1991-08-02 Nippon Steel Corp 生物学的処理方法
JPH06277657A (ja) * 1993-01-19 1994-10-04 Eiichi Tashiro 排水中の油分の除去方法
JPH07308691A (ja) * 1994-05-20 1995-11-28 Daiyamondo Enterp:Kk 複合微生物の自動投入方法及びその装置
JPH0910757A (ja) * 1995-06-28 1997-01-14 Meisui:Kk 厨房床排水用浄化装置
JPH09150178A (ja) * 1995-11-29 1997-06-10 Asetsuto Enterp:Kk 有機廃棄物処理用チップ及び処理方法
JPH09155385A (ja) * 1995-12-13 1997-06-17 Clean Tec Kk 厨芥排水処理方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6519787B2 (en) * 2001-02-01 2003-02-18 Juen S. Kim Toilet water recycling system
US6523186B2 (en) * 2001-02-01 2003-02-25 Juen S. Kim Toilet water recycling system

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