WO2015025533A1 - 排水処理設備 - Google Patents

排水処理設備 Download PDF

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Publication number
WO2015025533A1
WO2015025533A1 PCT/JP2014/052806 JP2014052806W WO2015025533A1 WO 2015025533 A1 WO2015025533 A1 WO 2015025533A1 JP 2014052806 W JP2014052806 W JP 2014052806W WO 2015025533 A1 WO2015025533 A1 WO 2015025533A1
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WIPO (PCT)
Prior art keywords
sludge
sand
facility
treatment facility
line
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PCT/JP2014/052806
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English (en)
French (fr)
Japanese (ja)
Inventor
水谷　洋
誠人 尾田
友紀 松田
Original Assignee
三菱重工環境・化学エンジニアリング株式会社
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Application filed by 三菱重工環境・化学エンジニアリング株式会社 filed Critical 三菱重工環境・化学エンジニアリング株式会社
Priority to KR1020167002204A priority Critical patent/KR101842807B1/ko
Priority to CN201480042439.9A priority patent/CN105431384B/zh
Publication of WO2015025533A1 publication Critical patent/WO2015025533A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
    • 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

Definitions

  • the present invention relates to a wastewater treatment facility provided with a sludge separation facility for separating sludge from a treatment liquid such as sewage in sewage.
  • a sludge separation facility for separating sludge from a treatment liquid such as sewage in sewage.
  • the sludge separation process by separation is performed (for example, refer patent document 1).
  • the sludge separated in the sedimentation basin has a solid concentration of about 2% to 5%, but is dewatered so that the solid concentration is about 15% to 30% by a sludge dehydrator, and is further solidified by a sludge dryer. It is general to reduce the volume so that the concentration of the substance is about 60% to 80%.
  • the dried sludge whose solid concentration is increased is carried out of the system or incinerated.
  • a portion in contact with the sludge may be worn away by inorganic matter such as sand contained in the sludge.
  • inorganic matter such as sand contained in the sludge.
  • a centrifugal separator is adopted as a sludge dewatering machine
  • a portion in contact with the sludge such as a screw or a ball constituting the centrifugal separator wears.
  • a paddle type drier is adopted as a sludge drier, parts such as paddles and shafts are worn away. As a result, there is a possibility that the stable processing may be disturbed and the maintenance cost may be increased.
  • An object of the present invention is to provide a waste water treatment facility which can realize stable operation by suppressing the wear of the equipment of the sludge volume reducing facility.
  • the wastewater treatment facility comprises a biological treatment facility for biological treatment of the treatment liquid, and a sludge separation facility for separating sludge of the treatment liquid at least one of upstream and downstream of the biological treatment facility And a sludge storage tank for storing sludge separated by the sludge separation facility, and the sludge treatment facility having sludge volume reduction equipment disposed downstream of the sludge storage tank for volume reduction treatment of the sludge.
  • a sand removal device is provided on at least one of a separation facility and the sludge storage tank, and between the sludge storage tank and the sludge volume reduction facility.
  • the sand removing device by providing the sand removing device, it is possible to suppress the wear of the equipment of the sludge volume reducing equipment caused by the sand. As a result, the wastewater treatment facility can be operated stably, and maintenance costs can be reduced. Moreover, compared with the structure which provides a means to remove sand with respect to the process liquid introduce
  • the sand removing device is provided on a first sludge line into which a first sludge separated by a first sludge separation facility provided upstream of the biological treatment facility is introduced. It may be
  • sand removal by the sand removal device is applied to the first sludge separated from the first sludge separation device located upstream of the biological treatment facility and from which the most amount of sludge is collected. Sand can be removed efficiently.
  • a first sludge line into which sludge separated from a first sludge separation facility provided upstream of the biological treatment facility is introduced, and a second sludge separation provided downstream of the biological treatment facility
  • the second sludge line into which sludge separated from the facility is introduced, and the mixed sludge line in which the first sludge line and the second sludge line join and are connected to the sludge storage tank,
  • the sand removal device may be provided on the mixed sludge line. According to the said structure, the sand which flowed downstream rather than the 1st sludge separation installation can be removed.
  • the sludge storage tank may have a circulation line for circulating the sludge in the sludge storage tank, and the sand removal device may be provided on the circulation line.
  • the sand since sand is removed from the sludge stored in the sludge storage tank, the sand can be removed without being affected by the amount of sludge separated in the sludge separation facility.
  • the sand removing device may be a liquid cyclone. According to the above configuration, sand contained in the sludge can be stably separated by using a liquid cyclone that is easy to handle.
  • the concentrated processing solution discharged from the hydrocyclone is temporarily accumulated in the concentration pipe, it is possible to prevent the solid substances contained in the concentrated processing solution from affecting the operation of the hydrocyclone.
  • the concentration pipe by replacing the concentration pipe, maintenance can be easily performed, and clogging of the inside of the liquid cyclone with scale components can be prevented.
  • a hydrogen ion improvement device may be provided upstream of the sand removal device to improve the hydrogen ion index of the sludge introduced into the sand removal device.
  • heavy metals and scale components contained in the sludge can be deposited, and the deposited heavy metals and scale components can be removed together with the sand.
  • a carbon dioxide supply device for blowing carbon dioxide into the sludge introduced to the sand removal device may be provided at a front stage of the sand removal device.
  • ADVANTAGE OF THE INVENTION According to this invention, abrasion of the apparatus of a sludge volume reduction installation can be suppressed with sand by having provided the sand removal apparatus. As a result, the wastewater treatment facility can be operated stably, and maintenance costs can be reduced. Moreover, compared with the structure which provides a means to remove sand with respect to the process liquid introduce
  • FIG. 1 is a schematic configuration view illustrating the configuration of the wastewater treatment facility 1 of the present embodiment.
  • the wastewater treatment facility 1 of the present embodiment is a treatment facility for organic wastewater W containing nitrogen, phosphorus or an organic substance such as sewage sludge or factory wastewater.
  • the water treatment system of the wastewater treatment facility 1 comprises a pretreatment facility 2 to which organic wastewater W is introduced and a first settling tank 3 (first sludge separation facility) for separating sludge from the wastewater treated in the pretreatment facility 2 And biological treatment equipment 4 for biological treatment of the waste water from which the sludge was separated in the first sedimentation tank 3 and final sedimentation tank 5 for further separation of sludge from the biological treatment waste water (second sludge separation equipment And an advanced treatment facility 6 for advanced treatment of the waste water from which the sludge has been separated in the final settling tank 5.
  • first settling tank 3 first sludge separation facility
  • sludge is generated by solid separation in the first settling tank 3 at the front stage of the biological treatment facility 4 and the final settling tank 5 at the rear stage of the biological treatment facility 4.
  • the organic drainage W is discharged to the river through each of the above facilities.
  • the pretreatment facility 2 is a facility for removing foreign substances contained in the organic drainage W to be introduced.
  • Examples of the pretreatment equipment 2 include crushing means for crushing large-diameter sludge, and separation means such as a screen capable of removing impurities.
  • the first settling tank 3 is a sludge separation facility that separates the fine sludge contained in the organic drainage W by sinking it to the bottom.
  • the first sludge line 8 is connected to the bottom of the first settling tank 3. That is, the sludge (hereinafter, referred to as first sludge P1) separated in the settling tank 3 is introduced into the first sludge line 8.
  • first sludge P1 the sludge
  • the biological treatment facility 4 has a configuration in which an anaerobic tank performing anaerobic treatment such as methane fermentation, an aerobic tank performing aeration, and a precipitation tank are combined, and mainly functions of nitrifying bacteria and denitrifying bacteria It is equipment which decomposes and removes BOD in a liquid, a nitrogen compound, etc. by this.
  • sludge including the organisms used for treatment in the biological treatment facility 4 is accumulated at the bottom.
  • a second sludge line 9 is connected to the bottom of the final settling tank 5.
  • the sludge separated in the final settling tank 5 (hereinafter, referred to as second sludge P2) is introduced into the second sludge line 9.
  • the solid concentration of the first sludge P1 and the second sludge P2 is 2% to 5%.
  • the sludge separation installation comprised from the first sedimentation basin 3 and the final sedimentation basin 5 separated sludge by gravity sedimentation, it does not restrict to this.
  • separation means such as dynamic filtration, coagulation separation, membrane separation, sand filtration or the like, or those having a dewatering function such as a belt press or screw press can be employed.
  • the advanced treatment equipment 6 include a flocculating separation device, an ozone oxidation device, and an activated carbon adsorption tower.
  • the sludge treatment system includes a first sludge line 8 for recovering sludge in the first settling tank 3, a second sludge line 9 for recovering sludge in the final settling tank 5, a first sludge line 8 and a second sludge line 9 Mixed sludge line 10 which is a joining line, sludge storage tank 11 provided on the downstream side of mixed sludge line 10, concentrated sludge line 12 into which sludge from sludge storage tank 11 is introduced, sludge storage tank 11 And a sludge volume reduction facility 13 provided on the downstream side of the
  • the sludge volume reduction facility 13 is a facility for volume reduction treatment of sludge, and includes a sludge dehydrator 14 and a sludge dryer 15 provided on the downstream side of the sludge dehydrator 14.
  • a sand removing device 16 for removing sand contained in the first sludge P1 is provided on the first sludge line 8.
  • a hydrogen ion improving device 19 for improving the hydrogen ion index (pH) of the first sludge P1 introduced to the sand removing device 16 is provided. It is provided.
  • the hydrogen ion improvement device 19 is a device for injecting an alkali agent such as sodium hydroxide into the first sludge P1 in the first sludge line 8.
  • an alkali agent such as sodium hydroxide
  • sodium hydroxide it is also possible to employ chelating agents.
  • a carbon dioxide supply device 20 for blowing carbon dioxide (CO 2 ) into the first sludge P1 introduced to the sand removal device 16 Is provided.
  • the sludge dewatering machine 14 is a device for dewatering the sludge sent from the sludge storage tank 11 by the pressure feed pump 17.
  • a centrifuge or a screw press type sludge dewatering machine can be employed as the sludge dewatering machine 14.
  • the separated liquid separated by the sludge dehydrator 14 is sent to the biological treatment facility 4 to perform biological treatment.
  • a centrifugal separator separates the separation liquid and the sludge with a screw rotating at high speed, and further sends out the sludge by the relative motion difference between the balls whose rotation is slightly slow.
  • a screw press type sludge dewatering machine arrange
  • the sludge dryer 15 is a device for drying the dewatered sludge dewatered by the sludge dehydrator 14.
  • a paddle dryer can be employed as the sludge dryer 15.
  • a paddle type dryer dries dehydrated sludge by arranging two shafts which have a huddle blade in piles, and setting it as the structure which a paddle blade mutually engages.
  • the sand removal device 16 is a classification device that adopts the mechanism of the liquid cyclone 22 and performs centrifugal classification on the first sludge P1 introduced through the first sludge line 8 and is included in the first sludge P1. It is a device that removes sand. As shown in FIG.
  • the sand removing device 16 includes a hydrocyclone 22, a concentration pipe 23 connected to the lower part of the hydrocyclone 22, a rotary valve 24 connected to the lower part of the concentration pipe 23, and a rotary valve It has a draining tank 25 for receiving sand S containing moisture discharged from the pipe 24 and a pipe conveyor 26 for raking up the sand S deposited at the lower part of the draining tank 25.
  • the hydrocyclone 22 is a cylindrical casing 27 whose diameter gradually decreases in the downward direction, and an introduction duct 28 provided near the upper end of the casing 27 for introducing the first sludge P1 so as to swirl in the casing 27.
  • An upper outlet 29 is provided on the upper surface of the casing 27 so as to project upward, and a lower outlet 30 provided at the lower end of the casing 27.
  • the introduction duct 28 is connected to the upstream side of the first sludge line 8, and a pump that generates high-speed swirling flow inside the cyclone body at the connection between the introduction duct 28 and the first sludge line 8 (Not shown) is provided.
  • the upper outlet 29 of the sand removing device 16 is connected to the downstream side of the first sludge line 8. That is, the first sludge P ⁇ b> 1 from which the sand S has been removed is introduced into the mixed sludge line 10 via the first sludge line 8.
  • the concentration tube 23 has a cylindrical shape extending with an equal diameter in the vertical direction. Specifically, the diameter of the concentration tube 23 is 45 mm or more and 55 mm or less.
  • the rotary valve 24 is a mechanism for quantitatively discharging the sand S containing water discharged from the lower part of the cyclone.
  • the rotary valve 24 has a housing 31 and a rotor 32 which is rotated by a drive source (not shown) in the housing 31.
  • the rotor 32 divides the inside of the casing 27 into a plurality of transfer chambers 33.
  • the rotary valve 24 of the present embodiment includes six transfer chambers 33. That is, the rotor 32 of the rotary valve 24 is provided with six blades, and the transfer chamber 33 is formed between the blades.
  • the drainage tank 25 is a sedimentation tank that accumulates the sand S containing water sent from the rotary valve 24 and is a precipitation classification mechanism that carries out precipitation classification.
  • An overflow liquid receiver 35 is provided inside the drainage tank 25, and an opening 36 is provided below the drainage tank 25.
  • An overflow line 37 for sending the liquid in the overflow fluid receiver 35 to the pretreatment equipment 2 is connected to the discharge part of the overflow fluid receiver 35.
  • the pipe conveyor 26 has a cylindrical pipe 38 connected to the opening 36 of the drain tank 25, a plurality of blades 39 movable in the pipe 38, and an outlet 40 formed in the pipe 38. There is.
  • the pipe 38 is disposed with a height difference, and the discharge port 40 is disposed at a position higher than the liquid level 41 of the drain tank 25 at least. Since the drainage tank 25 and the pipe 38 of the pipe conveyor 26 are connected, the liquid surface 41 of the liquid exists inside the drainage tank and also inside the pipe 38 of the pipe conveyor 26.
  • the pipe conveyor 26 further includes a traction cord 42 that annularly connects the plurality of blades 39 and a drive device 43 that drives the traction cord 42.
  • the traction cord 42 is driven to move the blade 39 annularly inside the pipe 38.
  • the tow cord 42 is driven so that the blade 39 ascends at the rising portion of the pipe 38 and the blade 39 descends at the falling portion.
  • the organic drainage W is introduced into the pre-treatment facility 2, and removal of impurities is performed. Then, the organic waste water W is first separated in the settling tank 3 and introduced into the biological treatment facility 4. Next, the organic drainage W is subjected to biological treatment in the biological treatment facility 4, and then the sludge including the living thing is separated in the final settling tank 5. Then, the organic drainage W is discharged after being subjected to advanced treatment.
  • an alkali agent such as sodium hydroxide is injected into the first sludge P1 first separated in the sedimentation tank 3 by the hydrogen ion improvement device 19.
  • carbon dioxide is blown into the first sludge P1 by the carbon dioxide supply device 20.
  • the first sludge P1 is introduced into the sand removing device 16.
  • the hydrocyclone 22 exerts a centrifugal force on the first sludge P1 by the swirling flow to separate the sand S from the first sludge P1.
  • the first sludge P1 from which the sand S has been removed overflows and is discharged from the upper outlet 29 of the hydrocyclone 22, and the concentrated treatment liquid containing the sand S moves downward of the casing 27 of the hydrocyclone 22 while swirling. It is discharged from the lower outlet 30.
  • the concentrated processing liquid containing sand S separated by the hydrocyclone 22 is temporarily accumulated in the concentration pipe 23.
  • the concentration pipe 23 has a role of preventing solid substances contained in the concentrated treatment liquid from affecting the operation of the hydrocyclone 22.
  • solids contained in the concentrated treatment solution are precipitated.
  • the condensing tube 23 has such a length that the precipitate deposited at the lower part thereof is not involved in the swirling flow generated inside the hydrocyclone 22.
  • the rotary valve 24 sequentially delivers the concentrated processing solution accumulated in the concentration pipe 23 to the settling tank of the drainage tank 25. Specifically, the concentrated processing solution is charged into the transfer chamber 33 at the upper inlet of the rotary valve 24. When the rotor 32 of the rotary valve 24 rotates and the transfer chamber 33 filled with the concentrated processing solution reaches the lower outlet position, the concentrated processing solution flows out of the transfer chamber 33 and is sent to the settling tank of the drainage tank 25. According to such an operation, the concentrated processing solution is intermittently delivered to the drainage tank 25.
  • the drainage tank 25 accumulates the concentrated processing solution delivered from the rotary valve 24 and carries out precipitation classification.
  • the sand S precipitated by precipitation classification is introduced into the pipe conveyor 26 from the opening 36 of the drainage tank 25.
  • the liquid surface 41 of the concentrated treatment liquid exceeds the upper end of the overflow liquid receiver 35, the liquid component flows into the overflow liquid receiver 35 and is sent to the pretreatment equipment 2 through the overflow line 37.
  • the liquid component flowing into the overflow liquid receiver 35 does not include sand S which is a precipitate.
  • Sand S introduced into the pipe conveyor 26 through the opening 36 is captured by the blade 39 and ascends the rising portion of the pipe 38.
  • the sand S is introduced into the discharge port 40 as it climbs up the rising portion and discharged from the discharge port 40. Since the sand S is transported over the liquid level 41 existing inside the pipes 38 of the pipe conveyor 26, the liquid component is removed from the sand S.
  • the first sludge P1 from which the sand S has been removed by the sand removing device 16 is stored in the sludge storage tank 11, and then dewatered by the sludge dehydrator. Further, the separated liquid generated by the sludge dehydrator 14 is sent to the biological treatment facility 4. The dewatered dewatered sludge is sent to the sludge dryer 15 to be dried sludge.
  • the sand removal apparatus 16 by providing the sand removal apparatus 16, the abrasion of apparatuses, such as the sludge dehydrator 14 and the sludge dryer 15 which arose with sand S, can be suppressed. As a result, the waste water treatment facility 1 can be operated stably, and maintenance costs can be reduced.
  • the liquid quantity made into object can be reduced. That is, sand contained in the treatment liquid can be removed more efficiently.
  • the sand S contained in the sludge can be stably separated using the liquid cyclone 22 which is easy to handle.
  • the concentrated processing liquid discharged from the hydrocyclone 22 is temporarily accumulated in the condensing pipe 23, so that the solid substance contained in the concentrated processing liquid is the hydrocyclone 22. You can prevent it from affecting the operation of Further, by replacing the concentration pipe 23, maintenance can be easily performed, and clogging of the inside of the liquid cyclone 22 with scale components can be prevented.
  • the capacity of the water draining tank 25 can be reduced. Further, when sand S is transferred from the liquid surface 41 of the drainage tank 25 during transfer of the sand S in the pipe 38 of the pipe conveyor 26, the liquid component accompanying the sand S is separated. Thereby, even when the liquid component remains in the sand S discharged from the drainage tank 25, the liquid component can be removed.
  • sodium hydroxide is injected into the first sludge P1 at the front stage of the sand removal device 16 to improve the pH of the first sludge P1, lead (Pb), cadmium (Pb) contained in the first sludge P1 It is possible to precipitate heavy metals such as Cd) and scale components. And the heavy metal and scale component which were deposited can be removed with sand S. Thereby, the safety at the time of sludge landfill after dehydration or drying and reuse can be improved.
  • the wastewater treatment facility 1 ⁇ / b> B of the present embodiment is characterized in that the sand removing device 16 is provided in the mixed sludge line 10. That is, the first sludge P1 and the second sludge P2 are introduced into the sand removing device 16. The sand removing device 16 removes sand contained in the first sludge P1 and the second sludge P2.
  • the sand which flowed downstream rather than the sedimentation basin 3 initially can be removed. That is, the sand contained in the sludge which flowed to the biological treatment installation 4 can be removed without settling in the sedimentation tank 3 at first.
  • the wastewater treatment facility 1C according to a third embodiment of the present invention will be described based on the drawings.
  • differences from the first embodiment described above will be mainly described, and the description of the same parts will be omitted.
  • the wastewater treatment facility 1 ⁇ / b> C of this embodiment is characterized in that the sand removing device 16 is provided in the concentrated sludge line 12. That is, the sludge discharged from the sludge storage tank 11 is introduced into the sand removing device 16.
  • the load of the sand removal device 16 can be adjusted by adjusting the storage time and the like in the sludge storage tank 11.
  • the sludge storage tank 11 of the wastewater treatment facility 1D of the present embodiment has a circulation line 44 for circulating the sludge in the sludge storage tank 11.
  • the sand removing device 16 is provided on the circulation line 44.
  • the circulation line 44 is provided with a circulation pump 45 for circulating sludge.
  • the capacity of the circulation pump 45 is sufficient to circulate the sludge on the circulation line 44, and can be smaller than, for example, the pressure pump 17 on the concentrated sludge line 12.
  • the sand since sand is removed from the sludge stored in the sludge storage tank 11, the sand is not affected by the amount of sludge separated in the first settling tank 3 and the last settling tank 5. Removal can be performed.
  • the technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
  • the structure which combined the feature demonstrated by the said several embodiment arbitrarily may be sufficient.
  • the sludge in the water treatment system is configured to be separated in the first settling tank 3 and the final settling tank 5, but the sludge deposited in the bottom of the biological treatment facility 4 is separated May be introduced into the
  • the sand removing device by providing the sand removing device, it is possible to suppress the wear of the equipment of the sludge volume reducing facility caused by the sand. As a result, the wastewater treatment facility can be operated stably, and maintenance costs can be reduced. Moreover, compared with the structure which provides a means to remove sand with respect to the process liquid introduce
  • Wastewater treatment equipment 1,1B, 1C, 1D Wastewater treatment equipment 2 Pretreatment equipment 3 First settling basin (1st sludge separation equipment) 4 Biological treatment equipment 5 Final settling tank (second sludge separation equipment) 6 Advanced treatment equipment 8 First sludge line 9 Second sludge line 10 Mixed sludge line 11 Sludge storage tank 12 Concentrated sludge line 13 Sludge volume reduction equipment 14 Sludge dewatering machine 15 Sludge drying machine 16 Sand removal device 17 Pressure pump 19 Hydrogen ion improvement Apparatus 20 carbon dioxide supply apparatus 22 hydrocyclone 23 condensing pipe 24 rotary valve 25 drain tank 26 pipe conveyor 27 casing 28 introduction duct 29 upper outlet 30 lower outlet 31 housing 32 rotor 33 transfer chamber 35 overflow liquid receiver 36 opening 37 overflow line 38 pipe 39 blade 40 discharge port 41 liquid level 42 traction cable 43 drive device 44 circulation line 45 circulation pump P1 first sludge P2 second sludge S sand W organic drainage (treatment liquid)

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Food Science & Technology (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Activated Sludge Processes (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
PCT/JP2014/052806 2013-08-22 2014-02-06 排水処理設備 WO2015025533A1 (ja)

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KR1020167002204A KR101842807B1 (ko) 2013-08-22 2014-02-06 배수 처리 설비
CN201480042439.9A CN105431384B (zh) 2013-08-22 2014-02-06 污水处理设备

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JP2013172338A JP6330210B2 (ja) 2013-08-22 2013-08-22 排水処理設備
JP2013-172338 2013-08-22

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TWI620600B (zh) * 2017-05-26 2018-04-11 底渣水洗分選系統
JP2019181325A (ja) * 2018-04-03 2019-10-24 三菱ケミカルアクア・ソリューションズ株式会社 汚泥の削減方法、排水処理設備、水棲甲殻類の養殖方法及び養殖設備、並びに炭素源の変換方法
CN113045034A (zh) * 2021-03-12 2021-06-29 桂林兴百利机械制造有限责任公司 一种用于污水处理可远程智能控制调节的plc系统

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CN105431384A (zh) 2016-03-23
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KR20160024993A (ko) 2016-03-07
JP6330210B2 (ja) 2018-05-30

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