WO2022034813A1 - 排水処理システム - Google Patents

排水処理システム Download PDF

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Publication number
WO2022034813A1
WO2022034813A1 PCT/JP2021/028516 JP2021028516W WO2022034813A1 WO 2022034813 A1 WO2022034813 A1 WO 2022034813A1 JP 2021028516 W JP2021028516 W JP 2021028516W WO 2022034813 A1 WO2022034813 A1 WO 2022034813A1
Authority
WO
WIPO (PCT)
Prior art keywords
disposer
foreign matter
wastewater
treatment system
purified
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/028516
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
知幸 奈良
祐二 山崎
聡 川尻
利崇 加藤
宏 岩本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Corp
Original Assignee
Takenaka Corp
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 Takenaka Corp filed Critical Takenaka Corp
Priority to MYPI2023000632A priority Critical patent/MY210538A/en
Priority to JP2022542800A priority patent/JPWO2022034813A1/ja
Publication of WO2022034813A1 publication Critical patent/WO2022034813A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless

Definitions

  • This disclosure relates to a wastewater treatment system.
  • the present disclosure aims to provide a wastewater treatment system that can suppress the occurrence of malfunctions in the transport equipment in consideration of the above facts.
  • the wastewater treatment system includes a disposer that crushes the thrown kitchen waste and sends it out as disposer wastewater, a foreign matter removing device that removes foreign matter or fiber that cannot be purified from the disposer wastewater, and foreign matter that cannot be purified.
  • the foreign matter removing device removes foreign matter or fiber that cannot be purified from the disposer wastewater. As a result, it is possible to prevent a malfunction in the transport equipment.
  • the wastewater treatment system according to the second aspect is a solid-liquid separation that separates and takes out an organic substance from the disposer wastewater from which the foreign matter or fiber that cannot be purified is removed by the foreign matter removing device in the wastewater treatment system according to the first aspect. It has an apparatus and a purification treatment apparatus for purifying the organic matter taken out by the solid-liquid separation apparatus.
  • the foreign matter removing device removes foreign matter or fiber that cannot be purified from the disposer wastewater. This makes it possible to efficiently purify organic substances using a purifying treatment device.
  • the wastewater treatment system according to the third aspect is the wastewater treatment system according to the second aspect, and the purification treatment apparatus is a fermentation tank that decomposes organic matter by methane fermentation.
  • organic matter is decomposed by methane fermentation in the fermenter. If a carrier is added to the fermenter, organic matter is decomposed.
  • the volumetric load of the fermenter can be improved and the fermenter can be miniaturized. Further, since the decomposition rate of organic matter by methane fermentation is improved, the load on the wastewater treatment equipment provided on the downstream side of the fermenter can be reduced.
  • FIG. 1 shows a system configuration diagram of a wastewater waste treatment system 10 as a wastewater treatment system according to the present embodiment.
  • the wastewater waste treatment system 10 includes a disposer 12, a foreign matter removing device 14, a relay tank 16, a solid-liquid separator 18 as a solid-liquid separation device, a raw material tank 20, a pressurized levitation device 22, and a fermentation tank 24 as a purification treatment device. , A solid-liquid separator 26, a wastewater treatment facility 28, and a transfer facility 30A to H.
  • the transport facility 30A includes a pipe 32A and a pump 34A.
  • the transport facility 30B includes a pipe 32B and a pump 34B.
  • the transfer equipment 30C includes a pipe 32C and a pump 34C.
  • the transfer equipment 30D includes a pipe 32D and a pump 34D.
  • the transfer equipment 30E includes a pipe 32E and a pump 34E.
  • the transfer equipment 30F includes a pipe 32F and a pump 34F.
  • the transport facility 30G includes a pipe 32G and a pump 34G.
  • the transport facility 30H is configured to include a pipe 32H and a pump 34H.
  • the crushed kitchen waste that has been thrown into the disposer 12 is sent out from the disposer 12 as drainage from the disposer, and is pumped to the foreign matter removing device 14 through the pipe 32A by the pump 34A and conveyed.
  • the foreign matter removing device 14 removes foreign matter and fibers that cannot be purified from the disposer wastewater conveyed from the disposer 12. Then, the disposer wastewater from which foreign substances and fibers that cannot be purified can be removed is pumped to the relay tank 16 through the pipe 32B by the pump 34B and conveyed. The disposer drainage in the relay tank 16 is pumped to the solid-liquid separator 18 through the pipe 32C by the pump 34C and conveyed.
  • foreign substances that cannot be purified include plastic films, plastic containers, plastic foam products, plastic sheets, binding tapes, binding plastic products, claw tooth branches, splits, wrapping paper, and paper containers.
  • the disposer wastewater pumped to the solid-liquid separator 18 is separated by the solid-liquid separator 18. Then, the solid matter (organic matter) separated and taken out is pumped to the raw material tank 20 through the pipe 32D by the pump 34D made of a slurry pump and conveyed. Further, the liquid component separated and taken out is mixed with the kitchen wastewater and then treated by the pressurized flotation device 22 to recover fine solid content (organic matter).
  • the recovered fine solid content is supplied to the raw material tank 20.
  • the liquid content from which the fine solid content has been recovered is sent to the wastewater treatment facility 28.
  • the organic matter stored in the raw material tank 20 (that is, the solid matter separated and taken out by the solid-liquid separator 18 and the fine solid matter recovered by the pressurized flotation device 22) is separated from the crushing pump and the slurry pump. It is pumped and transported through the pipe 32E by the pump 34E, and is supplied to the fermenter 24 as a purification treatment device.
  • the organic matter supplied from the raw material tank 20 is decomposed by methane fermentation as a purification treatment. Then, the solid content that is not decomposed is pumped by the pump 34G through the pipe 32G and conveyed to the solid-liquid separator 26, collected by the solid-liquid separator 26, and treated as waste. Further, the liquid component is pumped to the wastewater treatment facility 28 through the pipe 32H by the pump 34H and conveyed.
  • the foreign matter removing device 14 includes a foreign matter removing portion 38, a foreign matter removing portion 38, four impellers 40 arranged in the foreign matter removing portion 38, and a foreign matter removing portion 38 so as to surround the impeller 40. It is configured to have a punch metal 42, an outlet 44, and a receiver 46 provided at the bottom.
  • the kitchen that has been crushed and sent out by the disposer 12 is charged as drainage from the disposer from the input port 36 of the foreign matter removing device 14.
  • the swill and the like in the kitchen crushed by the disposer 12 are further crushed by the centrifugal force of the impeller 40 rotating at high speed, and are discharged to the receptor 46 through the holes of the punch metal 42.
  • the plastic, vinyl, etc. and fibers in the crushed kitchen have a light specific gravity, they are moved by the wind power to move the foreign matter removing portion 38 and are discharged from the discharge port 44. In this way, foreign matter or fibrous material is removed from the disposer drainage.
  • the foreign matter removing device 14 removes foreign matter or fiber that cannot be purified from the disposer wastewater. Thereby, it is possible to prevent the foreign matter or fiber that cannot be purified from accumulating in the pipes 32B, 32C, 32D, 32E and 32G and blocking the pipes 32B, 32C, 32D, 32E and 32G. Further, it is possible to prevent foreign substances or fibers that cannot be purified from being clogged in the pumps 34B, 34C, 34D, 34E and 34G and causing troubles in the pumps 34B, 34C, 34D, 34E and 34G. That is, it is possible to prevent problems from occurring in the transport equipment 30B, 30C, 30D, 30E, and 30G.
  • FIG. 3 shows a system configuration diagram of the conventional wastewater waste treatment system 48. Since the system configuration downstream from the disposer 12 and the relay tank 16 is the same configuration as the wastewater waste treatment system 10, the same reference numerals are given and the description thereof will be omitted.
  • the kitchen waste that has been thrown into the disposer 12 and crushed is sent out from the disposer 12 as drainage from the disposer, and is pumped to the relay tank 16 through the pipe 32B by the pump 34B and transported.
  • the foreign matter or fiber that cannot be purified is the pipes 32B, 32C, 32D, There is concern that it may accumulate in 32E and 32G and block the pipes 32B, 32C, 32D, 32E and 32G. In addition, there is a concern that foreign matter or fiber that cannot be purified may clog the pumps 34B, 34C, 34D, 34E and 34G and cause troubles in the pumps 34B, 34C, 34D, 34E and 34G. Further, since the foreign matter and fiber that cannot be purified are not decomposed even in the wastewater treatment facility 28, they must be separated and collected by the solid-liquid separator 26 and carried out of the site.
  • the foreign matter removing device 14 removes foreign matter or fiber that cannot be purified from the disposer wastewater. Therefore, it is possible to suppress such malfunctions of the pipes 32B, 32C, 32D, 32E and 32G and the pumps 34B, 34C, 34D, 34E and 34G.
  • the foreign matter removing device 14 removes foreign matter or fiber that cannot be purified from the disposer wastewater.
  • organic matter can be efficiently purified (methane fermentation) using the fermentation tank 24 as a purification treatment device.
  • the wastewater waste treatment system 10 of the present embodiment in addition to removing foreign matter or fiber that cannot be purified from the disposer wastewater by the foreign matter removing device 14, organic matter is removed by methane fermentation in the fermenter 24. Disassemble. As a result, the carrier can be put into the fermentation tank 24 to perform fluidized bed method methane fermentation.
  • the foreign matter removing device 14 removes foreign matter or fiber that cannot be purified from the disposer wastewater. Therefore, the carrier can be put into the fermentation tank 24 to perform fluidized bed method methane fermentation.
  • the foreign matter and fiber removed by the foreign matter removing device 14 cannot be methane-fermented in the fermenter 24. Therefore, the amount of biogas generated in the fermenter 24 does not decrease.
  • the wastewater waste treatment system 10 may be configured by having a fermentation tank 24 as a purification treatment device.
  • the wastewater waste treatment system of the present disclosure may be a wastewater treatment system not provided with a purification treatment device. That is, it may be a wastewater treatment system that discharges the disposer wastewater from which foreign substances and fibers that cannot be purified can be removed as it is.
  • FIG. 1 an example in which the wastewater waste treatment system 10 is configured with the solid-liquid separator 26 is shown.
  • the foreign matter and fiber that cannot be purified are completely removed by the foreign matter removing device 14, and the foreign matter and fiber must be transported from the fermenter 24 to the solid-liquid separator 26.
  • the solid-liquid separator 26 may not be provided.
  • FIG. 2 an example of a foreign matter removing device 14 for removing foreign matter and fibers from the disposer drainage by rotating the impeller 40 at high speed is shown.
  • the foreign matter removing device 14 may have other configurations as long as it can remove foreign matter and fibers from the disposer drainage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Treatment Of Sludge (AREA)
PCT/JP2021/028516 2020-08-11 2021-07-30 排水処理システム Ceased WO2022034813A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2023000632A MY210538A (en) 2020-08-11 2021-07-30 Discharge water treatment system
JP2022542800A JPWO2022034813A1 (https=) 2020-08-11 2021-07-30

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020135805 2020-08-11
JP2020-135805 2020-08-11

Publications (1)

Publication Number Publication Date
WO2022034813A1 true WO2022034813A1 (ja) 2022-02-17

Family

ID=80247162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/028516 Ceased WO2022034813A1 (ja) 2020-08-11 2021-07-30 排水処理システム

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JP (1) JPWO2022034813A1 (https=)
MY (1) MY210538A (https=)
WO (1) WO2022034813A1 (https=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001229955A (ja) * 2000-02-14 2001-08-24 Toto Ltd 発電システム
JP2002119937A (ja) * 2000-10-13 2002-04-23 Kubota Corp 生ゴミ処理方法
JP2004049943A (ja) * 2002-07-16 2004-02-19 Mitsubishi Heavy Ind Ltd 食品廃棄物のリサイクルシステム
JP2011177637A (ja) * 2010-02-26 2011-09-15 Takenaka Komuten Co Ltd 有機廃棄物の処理システム及び処理方法
JP2017042726A (ja) * 2015-08-27 2017-03-02 三井造船株式会社 飼料化リサイクルシステム及び飼料化リサイクル方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4994339B2 (ja) * 2008-10-22 2012-08-08 三井造船株式会社 バイオマス資源の回収システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001229955A (ja) * 2000-02-14 2001-08-24 Toto Ltd 発電システム
JP2002119937A (ja) * 2000-10-13 2002-04-23 Kubota Corp 生ゴミ処理方法
JP2004049943A (ja) * 2002-07-16 2004-02-19 Mitsubishi Heavy Ind Ltd 食品廃棄物のリサイクルシステム
JP2011177637A (ja) * 2010-02-26 2011-09-15 Takenaka Komuten Co Ltd 有機廃棄物の処理システム及び処理方法
JP2017042726A (ja) * 2015-08-27 2017-03-02 三井造船株式会社 飼料化リサイクルシステム及び飼料化リサイクル方法

Also Published As

Publication number Publication date
MY210538A (en) 2025-09-30
JPWO2022034813A1 (https=) 2022-02-17

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