DE69421211D1 - System zur Abwasserbehandlung - Google Patents

System zur Abwasserbehandlung

Info

Publication number
DE69421211D1
DE69421211D1 DE69421211T DE69421211T DE69421211D1 DE 69421211 D1 DE69421211 D1 DE 69421211D1 DE 69421211 T DE69421211 T DE 69421211T DE 69421211 T DE69421211 T DE 69421211T DE 69421211 D1 DE69421211 D1 DE 69421211D1
Authority
DE
Germany
Prior art keywords
treatment system
wastewater treatment
wastewater
treatment
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.)
Expired - Lifetime
Application number
DE69421211T
Other languages
English (en)
Other versions
DE69421211T2 (de
Inventor
Yasushi Funakoshi
Khoji Ogata
Masayuki Kojima
Hitoshi Kawaziri
Hirofumi Yamamoto
Kazuhiko Noto
Naomichi Mori
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.)
Funakoshi Yasushi Tokio/tokyo Jp
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Technologies Ltd
Hitachi Plant Engineering and Construction Co Ltd
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
Priority claimed from JP05153590A external-priority patent/JP3123692B2/ja
Priority claimed from JP08347294A external-priority patent/JP3191559B2/ja
Priority claimed from JP6083473A external-priority patent/JP2976272B2/ja
Application filed by Hitachi Plant Technologies Ltd, Hitachi Plant Engineering and Construction Co Ltd filed Critical Hitachi Plant Technologies Ltd
Application granted granted Critical
Publication of DE69421211D1 publication Critical patent/DE69421211D1/de
Publication of DE69421211T2 publication Critical patent/DE69421211T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0003Making of sedimentation devices, structural details thereof, e.g. prefabricated parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0006Settling tanks provided with means for cleaning and maintenance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012Settling tanks making use of filters, e.g. by floating layers of particulate material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/003Sedimentation tanks provided with a plurality of compartments separated by a partition wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/003Sedimentation tanks provided with a plurality of compartments separated by a partition wall
    • B01D21/0036Horizontal partition walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039Settling tanks provided with contact surfaces, e.g. baffles, particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0042Baffles or guide plates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02Settling tanks with single outlets for the separated liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02Settling tanks with single outlets for the separated liquid
    • B01D21/04Settling tanks with single outlets for the separated liquid with moving scrapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/18Construction of the scrapers or the driving mechanisms for settling tanks
    • B01D21/183Construction of the scrapers or the driving mechanisms for settling tanks with multiple scraping mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2405Feed mechanisms for settling tanks
    • B01D21/2411Feed mechanisms for settling tanks having a tangential inlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2427The feed or discharge opening located at a distant position from the side walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/245Discharge mechanisms for the sediments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/245Discharge mechanisms for the sediments
    • B01D21/2472Means for fluidising the sediments, e.g. by jets or mechanical agitators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/26Separation of sediment aided by centrifugal force or centripetal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/16Upward filtration
    • B01D24/165Upward filtration the filtering material being supported by pervious surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/20Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
    • B01D24/26Upward filtration
    • B01D24/263Upward filtration the filtering material being supported by pervious surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/38Feed or discharge devices
    • B01D24/40Feed or discharge devices for feeding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4668Regenerating the filtering material in the filter by moving the filtering element
    • B01D24/4684Regenerating the filtering material in the filter by moving the filtering element using spray devices
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/06Aerobic processes using submerged filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/10Packings; Fillings; Grids
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/14Particulate filter materials with a lower density than the liquid mixture to be filtered
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage
DE1994621211 1993-06-24 1994-06-23 System zur Abwasserbehandlung Expired - Lifetime DE69421211T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP05153590A JP3123692B2 (ja) 1993-06-24 1993-06-24 固液分離装置
JP08347294A JP3191559B2 (ja) 1994-04-21 1994-04-21 固液分離装置
JP6083473A JP2976272B2 (ja) 1994-04-21 1994-04-21 排水処理方法及びその装置

Publications (2)

Publication Number Publication Date
DE69421211D1 true DE69421211D1 (de) 1999-11-25
DE69421211T2 DE69421211T2 (de) 2000-03-23

Family

ID=27304233

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1994621211 Expired - Lifetime DE69421211T2 (de) 1993-06-24 1994-06-23 System zur Abwasserbehandlung
DE1994629676 Expired - Lifetime DE69429676T2 (de) 1993-06-24 1994-06-23 Abwasserreinigungsanlage

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1994629676 Expired - Lifetime DE69429676T2 (de) 1993-06-24 1994-06-23 Abwasserreinigungsanlage

Country Status (3)

Country Link
US (2) US5558763A (de)
EP (2) EP0829456B1 (de)
DE (2) DE69421211T2 (de)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9521695D0 (en) * 1995-10-23 1996-01-03 Anglian Water Services Ltd Sewage treatment apparatus
US6105593A (en) * 1998-05-22 2000-08-22 Jet, Inc. Fixed film media cleaner apparatus and method
US6177004B1 (en) 1999-12-28 2001-01-23 Dominic J. Bracone, Jr. Septic system filter apparatus
JP2001239112A (ja) * 2000-03-01 2001-09-04 Ebara Corp 固液分離装置
US6447681B1 (en) 2000-08-07 2002-09-10 Kent Sea Tech Corporation Aquaculture wastewater treatment system and method of making same
FR2814454B1 (fr) * 2000-09-27 2002-12-20 Degremont Procede d'epuration d'eaux residuaires en vue de l'elimination des pollutions azotees et phosphatees
EP1369157B1 (de) * 2001-03-13 2007-09-26 Ngk Insulators, Ltd. Filter zur filtration mit hohem durchsatz sowie zugehöriges filterverfahren
EP1380330B1 (de) * 2001-04-04 2008-06-04 Ngk Insulators, Ltd. Vorrichtung zur regenwasserbehandlung in mischwasserkanälen und zugehöriges verfahren für die rückspülung
US6726838B2 (en) * 2002-01-07 2004-04-27 Agwise Wise Water Technologies Ltd. Biofilm carrier, method of manufacture thereof and waste water treatment system employing biofilm carrier
TW593172B (en) * 2001-10-30 2004-06-21 Ind Tech Res Inst Floated biological treatment apparatus and process for purifying refractory wastewater or top water
SE521571C2 (sv) * 2002-02-07 2003-11-11 Greenfish Ab Integrerat slutet recirkulerande system för rening av spillvatten i vattenbruk.
US6666965B1 (en) * 2002-06-14 2003-12-23 Cornell Research Foundation, Inc. Cellular microbead filter for use in water recirculating system
GB2396348B (en) * 2002-12-17 2005-07-27 Sev Trent Water Purification L Waste-water treatment plant
DE502004009269D1 (de) * 2003-04-07 2009-05-14 Wuerdig Uwe Verfahren und vorrichtung zur behandlung fliessfähiger medien mit einem filterreaktor
US20070221586A1 (en) * 2005-06-27 2007-09-27 Ruprecht John C High pressure oil removing filter
US20080041796A1 (en) * 2005-06-27 2008-02-21 Ruprecht John C High back pressure filter for removing non-water component(s) from water
AU2006222735B8 (en) * 2005-10-06 2011-12-08 Robert Hume Pannell Multi-media clarifier or thickener
GB0520900D0 (en) * 2005-10-14 2005-11-23 Brightwater Engineering Ltd Method and system
US20070210017A1 (en) * 2006-03-08 2007-09-13 Mackay Donald J Filter system for filtering water or wastewater and a method of operating the filter system
US8282818B1 (en) 2008-05-27 2012-10-09 Keith Dobie Serpentine submerged attached growth reactor
WO2009146247A1 (en) * 2008-05-30 2009-12-03 Beggs Robert A Backwashing unsaturated wastewater filter
US7914678B2 (en) * 2008-05-30 2011-03-29 Beggs Robert A Backwashing unsaturated wastewater filter
WO2010026564A1 (en) 2008-09-03 2010-03-11 Aqwise - Wise Water Technologies Ltd. Integrated biological wastewater treatment and clarification
PL2230211T3 (pl) 2009-03-09 2014-01-31 F Tec Systems Sa Instalacja i sposób wstępnej obróbki nieoczyszczonej wody
CN101585570B (zh) * 2009-07-03 2010-12-29 西安建筑科技大学 高、低浊水一体式水质净化装置
US8505881B2 (en) 2009-10-12 2013-08-13 Enviromix, Llc Mixing systems and methods of mixing
US8758613B2 (en) * 2009-10-16 2014-06-24 Aqwise-Wise Water Technologies Ltd Dynamic anaerobic aerobic (DANA) reactor
US8323498B2 (en) 2010-10-04 2012-12-04 Enviromix, Llc Systems and methods for automated control of mixing and aeration in treatment processes
CN202822936U (zh) * 2012-05-23 2013-03-27 瑞典诺迪克有限公司 过滤设备及用于向过滤设备供应流体的装置
US8734646B1 (en) * 2013-07-11 2014-05-27 Allen John Schuh Bioremediation treatment for human sanitary waste
CN105854367B (zh) * 2016-05-13 2019-08-30 上海绩优机电股份有限公司 一种过滤系统和过滤方法
US20190100450A1 (en) 2017-09-29 2019-04-04 Theodore K. Jenkins Systems and methods for treatment processes
CN107902738B (zh) * 2017-11-20 2020-03-06 广德樊缇卡信息咨询有限公司 一种污水净化絮凝装置
US10913667B2 (en) * 2017-12-08 2021-02-09 Westech Engineering, Inc. Multi-media clarification systems and methods
CN107998696B8 (zh) * 2017-12-29 2020-07-31 江苏峰业科技环保集团股份有限公司 一种污水处理系统用沉淀装置
CN108609741B (zh) * 2018-05-12 2023-11-10 农业部沼气科学研究所 一种浅层流动的生活污水处理装置
CN108751603B (zh) * 2018-06-26 2021-01-01 谌莉莎 一种污水处理设备
CN110478978B (zh) * 2019-09-12 2021-07-13 济南大学 一种圆形自排沙式重力沉沙过滤池
CN111362532B (zh) * 2020-04-20 2022-03-25 青岛维堪环境科技有限公司 一种城市用污水处理设备及其控制系统
CN112915641B (zh) * 2021-03-18 2022-06-14 上海威派格智慧水务股份有限公司 一种滤池反冲洗控制方法
CN113045132B (zh) * 2021-03-24 2021-12-14 中国科学院生态环境研究中心 一种水生态修复装置及其修复方法
CN114149064B (zh) * 2021-12-20 2022-09-06 江苏暨之阳环保科技有限公司 一种重金属超标污染区域的综合治理方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US714709A (en) * 1902-07-28 1902-12-02 Edward N Roth Filtration apparatus for municipal or commercial uses.
US1439406A (en) * 1921-07-07 1922-12-19 Henry E Elrod Sewage-disposal plant and system
US2196840A (en) * 1935-10-11 1940-04-09 Micajah T Singleton Sewage treatment
US2360769A (en) * 1941-10-22 1944-10-17 Gavett Weston Process for biological treatment of sewage, trade wastes, and the like
US2458163A (en) * 1944-04-06 1949-01-04 Clyde C Hays Sewage treating process
BE652833A (de) * 1963-09-16
GB1275116A (en) * 1969-10-08 1972-05-24 Hydronyl Ltd Improvements in or relating to biological filters
DE2150760A1 (de) * 1970-10-13 1972-04-20 Mono Pumps Ltd Verfahren und Vorrichtung zum Behandeln von Ablaufwasser
JPS5185257A (en) * 1975-01-22 1976-07-26 Hitachi Ltd Koekibunrihoho oyobi sonosochi
US4446027A (en) * 1980-03-20 1984-05-01 Environmental Elements Corp. Buoyant media filter
DE3131989A1 (de) * 1981-08-13 1983-02-24 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtung zur biologischen reinigung von abwasser
JPS60193508A (ja) * 1984-03-16 1985-10-02 Hitachi Plant Eng & Constr Co Ltd 固液分離装置
US4650585A (en) * 1984-04-17 1987-03-17 Air Products And Chemicals, Inc. Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants
DE3723804A1 (de) * 1987-07-18 1989-01-26 Norddeutsche Seekabelwerke Ag Fuellkoerper
JPH01249113A (ja) * 1988-03-30 1989-10-04 Yokohamashi 水平濾床型低圧損上向流濾過装置
JPH0697416B2 (ja) * 1988-06-30 1994-11-30 オ−クマ株式会社 自動プログラミング装置における画面表示方法
JPH0212405U (de) 1988-07-05 1990-01-25
JPH0217908A (ja) * 1988-07-05 1990-01-22 Nishihara Environ Sanit Res Corp 固液分離装置の洗浄方法
US5006251A (en) * 1989-09-27 1991-04-09 Director General, Public Works Research Institute, Ministry Of Construction Process for treating organic waste water
NL8902573A (nl) * 1989-10-17 1991-05-16 Ecotechniek Bv Werkwijze en inrichting voor het verwerken van mest.
GB9012703D0 (en) * 1990-06-07 1990-08-01 Anglian Water Services Ltd Sewage treatment
CA2096523A1 (en) * 1990-11-21 1992-05-22 Isamu Iwai Sewage purifying device of filter material circulation type
US5160435A (en) * 1991-02-25 1992-11-03 Albertson Orris E Method and system for bio-mass management of a trickling filter
JP3734227B2 (ja) * 1991-10-18 2006-01-11 三井造船株式会社 上向流式高速濾過装置

Also Published As

Publication number Publication date
EP0829456A2 (de) 1998-03-18
DE69421211T2 (de) 2000-03-23
DE69429676T2 (de) 2002-08-14
DE69429676D1 (de) 2002-02-21
EP0829456A3 (de) 1998-08-05
US5578200A (en) 1996-11-26
EP0630671B1 (de) 1999-10-20
US5558763A (en) 1996-09-24
EP0829456B1 (de) 2002-01-16
EP0630671A3 (de) 1995-08-16
EP0630671A2 (de) 1994-12-28

Similar Documents

Publication Publication Date Title
DE69421211D1 (de) System zur Abwasserbehandlung
DE595783T1 (de) System zur Ultraschallbehandlung.
DE69306024T2 (de) Klärschlammaufbereitung
BR9401242A (pt) Sistema de tratamento de água
DE69717938T2 (de) System zur Wasserbehandlung
DE69725794D1 (de) Granulat zur Abwasserbehandlung
DE69601580D1 (de) Behandlungssystem für abwasser
ATE226922T1 (de) Abwasserbehandlungssystem
DE59205564D1 (de) Verfahren zur Abwasseraufbereitung
DE69725895D1 (de) Verfahren zur Reinigung von Abwässern
FI945200A (fi) Jäteveden puhdistus
DE69322653T2 (de) Geruchloses system zur abwasserbehandlung
FI961883A0 (fi) Jäteveden puhdistusmenetelmä
KR950003749U (ko) 폐수 처리기
DE29609915U1 (de) Pflanzenbewachsenes Klärbecken zur Abwasserreinigung
KR970005781U (ko) 폐수처리기
KR950003750U (ko) 폐수 처리기
DE9319593U1 (de) Kleinkläranlage
KR960031478U (ko) 폐수처리장치
KR950003748U (ko) 폐수 정화 처리 장치
KR960034533U (ko) 간이 폐수처리장치
ES1024773Y (es) Depurador de aguas residuales.
KR940022158U (ko) 슬러지(sludge) 처리장치
DE9318567U1 (de) Kleinkläranlage
DE9318411U1 (de) Hochleistungs-Siebanlage zur Abwasserbehandlung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FUNAKOSHI, YASUSHI, TOKIO/TOKYO, JP

Owner name: HITACHI PLANT TECHNOLOGIES, LTD., TOKYO, JP