[go: up one dir, main page]

WO2008095236A1 - Système de traitement d'eaux résiduaires domestiques - Google Patents

Système de traitement d'eaux résiduaires domestiques Download PDF

Info

Publication number
WO2008095236A1
WO2008095236A1 PCT/AU2008/000132 AU2008000132W WO2008095236A1 WO 2008095236 A1 WO2008095236 A1 WO 2008095236A1 AU 2008000132 W AU2008000132 W AU 2008000132W WO 2008095236 A1 WO2008095236 A1 WO 2008095236A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
domestic wastewater
treatment system
wastewater treatment
pump
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/AU2008/000132
Other languages
English (en)
Inventor
Craig Timms
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.)
ECONOVA IP Pty Ltd
Original Assignee
ECONOVA IP Pty 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 AU2007900551A external-priority patent/AU2007900551A0/en
Application filed by ECONOVA IP Pty Ltd filed Critical ECONOVA IP Pty Ltd
Publication of WO2008095236A1 publication Critical patent/WO2008095236A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • 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
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
    • C02F3/1247—Small compact installations for use in homes, apartment blocks, hotels or the like comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors
    • 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
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1268—Membrane bioreactor systems
    • C02F3/1273—Submerged membrane bioreactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • 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 invention relates to the treatment of wastewater, and in particular, to a domestic wastewater treatment system which provides a high buffer capacity membrane filtration process for the separation of solids and treated water to produce a high quality effluent for recycling or reuse.
  • the present invention provides a domestic wastewater treatment system including: a body portion in the form of a single tank having at least one chamber and an inlet and an outlet connection; an air/oxygen supply; at least one pump; at least one disinfection means; at least one membrane filtration un ' rt; at least one level indicator; and a control box whereby the domestic wastewater treatment system provides a high buffer capacity membrane filtration process for the separation of solids and treated water to produce a high quality effluent for recycling or reuse.
  • a first chamber is preferably adapted to receive the incoming sewage and provide a buffering capacity when there is a high incoming load.
  • the first chamber is preferably adapted to have an air supply and a plurality of micro-organisms to enable the aerobic treatment of the wastewater.
  • a first pump is a transfer pump which is adapted to transfer the partially treated wastewater from a first chamber to a second chamber.
  • control box is preferably adapted to be mounted directly above the body portion of the system.
  • the control box preferably has provided an air blower which is adapted to supply air to at least one diffuser of the system.
  • a second chamber is preferably in the form of a membrane biological reactor (MBR) chamber.
  • MLR membrane biological reactor
  • the second chamber is preferably adapted to provide a second aerobic treatment process for incoming sewage as well as the existing biomass.
  • the membrane filiration unit preferably has provided at least one membrane.
  • the membranes are preferably perforated having a plurality of pores to allow for the adequate removal of all faecal coliforms and a suitable proportion of viruses to provide a first means of disinfection for the treatment of wastewater.
  • a second pump is a suction pump contained within the control box.
  • the suction pump is preferably a low voltage diaphragm pump which is adapted to draw treated wastewater through the membrane filters and deposit it into the third treated effluent chamber.
  • a third chamber is preferably adapted to be a treated effluent chamber which is adapted to hold the treated water until it is ready for use.
  • the third chamber is adapted to provide a second means of disinfection for the wastewater treatment system.
  • the third chamber preferably has provided an effluent pump which is utilised to supply treated water to the irrigation system.
  • Figure 1 shows a per ⁇ pectfve cross-sectional view of the domestic wastewater treatment system according to an embodiment of the invention.
  • Figure 2 shows a schematic view of the domestic wastewater treatment system according to an embodiment of the invention.
  • FIGS 1 to 2 show a domestic wastewater treatment system according to an embodiment of the invention.
  • the present invention provides a domestic wastewater treatment system which provides a high buffer capacity membrane filtration process for the separation of solids and treated water to produce a high quality effluent for recycling or reuse.
  • wastewater should be understood to be any wastewater coming from a domestic household such as black and grey water or grey water only.
  • the system 1 with additional disinfection can be used to treat water for reuse back into other applications such as reuse back into toilets, car washing, laundry or any other suitable application.
  • the system 1 is designed to treat wastewater safely and in a manner which will produce a standard suitable for use for surface irrigation.
  • the system 1 is adapted to be installed in the garden below the ground surface so as not to detract from the aesthetic appeal of the domestic property.
  • the system 1 could also be installed above ground or be free-standing.
  • the system 1 preferably utilises membrane filtration far the separation of solids and treated water, rather than relying on settling processes, to produce higher solid levels within the biomass of the system to result in a smaller overall footprint.
  • the system 1 has provided a body portion 2 which is adapted to house all the necessary components of the system for the treatment of domestic wastewater.
  • the body portion 2 is preferably made of a high-density polyethylene material.
  • any other suitable material may also be used provided that it is strong, durable, water and weather-resistant and meets the requirements of the invention and regulatory safety and hygiene standards. It is envisaged that the shape, style and dimensions of the system 1 and its components may be varied as desired to suit different requirements and/or applications.
  • the body portion 2 of the system 1 is in the form of a single tank divided into at least one chamber which is designed for the treatment of wastewater 4.
  • the body portion 2 is preferably divided into three chambers 10, 20, 30 which are adapted to treat the wastewater 4 therein.
  • the chambers 10, 20, 30 are adapted to be integrally formed with the body portion of the system, such that the outer perimeter of the chamber is formed by the walls of the body portion, and be located adjacent to each other and separated by at least one common/dividing wall.
  • a first chamber 10 is preferably a main tank for treating the wastewater 4.
  • the first chamber 10 is adapted to receive the incoming untreated sewage and provide a buffering capacity when there is a high incoming load.
  • the first chamber 10 is adapted to have an oxygen supply 12 to enable the aerobic treatment of the wastewater 4 and function as a primary aeration chamber.
  • a plurality of microorganisms 11 are placed within the first chamber 10 which are adapted to breakdown and digest the impurities within Ihe wastewater 4 or sewage to provide an initial means of treating the wastewater.
  • the first chamber 10 has provided an input connection 13 which is adapted to receive the incoming wastewater 4 diverted from the household sewage line.
  • the sewage connection 13 provides connection for a single household to use the system and can preferably be retrofitted to a household's existing sewage system.
  • the system 1 of the invention has provided a control box 14 which is adapted to house the components necessary for controlling and regulating the supply of air/oxygen to the system 1 and movement and treatment of the water through the system 1.
  • the control box 14 is adapted to be mounted directly above the body portion 2 of the system 1.
  • the control box 4 has provided an air blower 12 which is adapted to supply air for the system 1.
  • any other suitable means for supplying oxygen may also be employed.
  • At least one diffuser is provided for recefving the air/oxygen and distributing the oxygen into the relevant chambers of the system 1.
  • a first diffuser is preferably a fine bubble air drffuser 15 which is adapted to provide aeration to the first chamber 10. The aeration allows the micro-organisms contained within the first chamber 10 to mix with the wastewater 4 and breakdown and digest the organic material contained within the wastewater 4 through biological activity.
  • the control box 14 and/or air blower 12 is preferably adapted to have provided a pressure switch (not shown) which is adapted to monitor the operation of the air blower 12 and activate an alarm (nofshown) of the control box 14 in the event that the air output drops below the required level for optimal aeration within the chamber 10.
  • the incoming sewage/wastewater 4 is aerated on a cyclic basis (ie. it is aerated for a prescribed period followed by a prescribed period where there is no additional air/oxygen added).
  • the transfer pump 16 Connected between the first chamber 10 and second chamber 20 is a transfer pump 16 for transferring the wastewater 4 for the next stage of treatment.
  • the transfer pump 16 is preferably a PVC air venture pump which is adapted to transfer the treated wastewater 4 from the first chamber 10 to the second chamber 20 for further treatment and/or disinfection.
  • the transfer pump 16 is adapted to periodically pump the partially treated sewage to allow for adequate treatment of the wastewater 4 in the first chamber 10 prior to its transfer into the second chamber 20. However, if there is a high level of wastewater 4 within the first chamber 10, it is envisaged a high level alarm will be activated to activate the transfer pump 16 to pump the wastewater 4 though to the second chamber 20 to maintain a suitable capacity level for the first chamber 10.
  • a second chamber 20 is a membrane biological reactor (MBR) chamber.
  • the second chamber 20 is designed to provide a second aerobic treatment process for incoming sewage as well as the existing biomass.
  • the second MBR chamber 20 preferably has provided a second air diffuser 21 which is adapted to provide aeration for the second MBR chamber 20.
  • the air diffuser 21 is preferably a fine bubble air diffuser which is adapted to be attached t ⁇ the bottom of the second MBR chamber 20.
  • the air/ ⁇ xygen for the air diffuser 21 is supplied via the air blower 12 of the control box 14 mounted on top of the body portion 2 of the system 1.
  • the aeration allows the microorganisms contained within the second chamber 20 to mix with the wastewater 4 and further breakdown and digest the organic material contained within the wastewater 4.
  • the control box 14 and/or air blower 12 is adapted to have provided a pressure switch which is adapted to monitor the operation of the air blower and activate an alarm of the control box 14 if the air output drops below the required level and stop
  • the second MBR chamber 20 has provided a membrane filtration unit 22 for the separation of solids and treated water.
  • the membrane filtration unit 22 preferably has provided at least one submerged membrane 23.
  • the membranes 23 are preferably adapted to be self-cleaning, utilising the shearing action of the diffused air/oxygen and mixed liquor as it rises, to scour the external face of the membranes 23 and break any trapped solid particles, or build up of bio-mass.
  • the membranes 23 are preferably flat plate membranes which are perforated having a plurality of pores. In a preferred embodiment, the pore size is 0.2 microns or smaller to provide a suitable physical barrier in order to guarantee the effluent quality which is not available from systems using settling processes only.
  • the pore size may be variable to allow for the adequate removal of all faecal coliforms and a suitable proportion of viruses to provide a first means of disinfection for the treatment of the wastewater 4.
  • the membranes 23 are designed to provide "membrane disinfection" to thermo-tolerant coliforms via the physical blocking of such bacteria due to the membrane pore size. This physical disinfection without the use of chlorination, UV radiation or oiher chemical means is quite unique for these systems. Movement and/or transfer of the treated wastewater 4 within the second chamber 20 preferably occurs via a suction pump 24 contained within the control box 14.
  • the suction pump 24 is preferably a low voltage diaphragm pump which is adapted to draw the treated/disinfected wastewater 4 through the membrane filters 23 and deposit it into the third treated effluent chamber 30 /or further treatment of the wastewater 4.
  • the second MBR chamber 20 is adapted to have provided a working level float (not shown) which is adapted to control the transfer of treated effluent through the membranes 23 into the third chamber 30.
  • the float is preferably set to operate at a differential of 200mm.
  • a high level of treated wastewater 4 will cause the activation of the suction pump 24 and de-activation of the transfer pump 16, and a low level of treated wastewater will cause de-activation of the suction pump 24 and activation of the transfer pump 16 to regulate the wastewater 4 capacity through the system 1,
  • a third chamber 30 is a treated effluent chamber which is adapted to hold the tre.ated water until it is ready for use.
  • the third chamber 30 is adapted to provide a second means of disinfection for the wastewater treatment system.
  • the disinfectant means is a chlorinator 31, preferably in a tablet form, which is adapted fo provide a secondary disinfection rf required.
  • the chlorinator 31 is located between the second chamber 20 and third chamber 30 so that the wastewater can be pumped through the membrane filters 23 and into the third chamber 30 flowing over the chlorinator 31.
  • any other suitable disinfection means such as UV or chemical treatment could also be adopted.
  • the system 1 of the invention is adapted to treat domestic wastewater 4 without the use of any chlorine, UV or other chemicals.
  • the third chamber 30 preferably has provided an effluent pump 32 which is utilised to supply treated water to an irrigation system.
  • the third chamber 30 preferably has provided an irrigation pump float switch (not shown) which is adapted to activate the effluent pump 32 and pump the treated water through to the irrigation system when there is an adequate volume of treated water within the third chamber 30.
  • the frequency of discharge of the treated effluent is determined by the level of effluent within the third chamber 30.
  • the system 1 of the invention has provided a control box 14 which is adapted to house the components necessary for the supply of air/oxygen to the system 1 and control the movement and treatment of the wastewater 4 through the system 1.
  • the system 1 has provided an aeration timer (not shown) which is adapted to control the operation of the aeration/oxygen supply via a solenoid valve ⁇ not shown) which opens and closes to allow the air from the blower 12 to periodically feed into the first 10 and/or second 20 chambers of the body portion 2.
  • the air blower 12 is preferably situated so that it operates to continuously supply air to the MBR chamber.
  • the control box 14 has provided a suction pump 24, in the form of a low voltage diaphragm pump, which is adapted to draw treated wastewater through the membrane filters 23 and deposit it into the treated effluent chamber 30,
  • the control box 14 has provided a control panel (not shown) which ensures the system is operating efficiently is adapted to generate an alarm in the event that an abnormal condition occurs.
  • the control b.ox 14 is preferably mounted directly above the primary chamber and is connected to a power source, which may be a direct and/or alternate current source, for the operation of its components.
  • the sewage from the domestic property is diverted into the body portion 2 of the system 1 via an incoming sewage line and connection ⁇ not shown) connected to the first chamber 10 of the body portion 2.
  • the incoming wastewater 4 is partially treated by aeration and digestion of organic and biomass material via micro-organisms and/or microbes contained within the first chamber 10.
  • the partially treated sewage/wastewater 4 is periodically pumped into the second MBR chamber 20 for further aeration and filtration/disinfection of the wastewater 4.
  • the frequency of operation of the transfer pump 16 is preferably determined by the hydraulic loading applied to the treatment system 1.
  • the wastewater 4 is further treated in the second chamber 20 and is pulled through the membrane plates 23 of the membrane filtration unit 22 via the suction pump 24 to undergo a first means of disinfection in the form of filtration through a physical barrier.
  • the treated wastewater 4 is then passed from the second chamber 20 into the third chamber 30 where it is held until ready to be pumped into an irrigation system and/or undergo a further disinfection process.
  • the system of the invention ensures that there is almost no build up of excess sludge as all or most of the organic matter and excess biomass contained within the wastewater 4 should be oxidised to keep the sludge build up within the aeration chambers 10, 20 to a minimum.
  • sludge levels should be monitored a ⁇ d recorded at prescribed service intervals to ensure that the treatment process is working correctly. Fn the event that the microbes are subjected to large amounts of toxic substances, the contents of the system 1 may need to be removed and "re- s ⁇ eded".

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention concerne un système de traitement d'eaux résiduaires domestiques comportant une partie corps sous la forme d'un réservoir unique pourvu d'au moins une chambre ainsi que d'une connexion d'entrée et d'une connexion de sortie; d'une alimentation en air/oxygène; d'au moins une pompe, un moyen de désinfection, une unité de filtration par membrane, un indicateur de niveau et une boîte de commande, ce par quoi le système de traitement d'eaux résiduaires domestiques fournit un procédé de filtration par membrane à capacité de tampon élevée pour la séparation de matières solides et de l'eau traitée pour produire un effluent de qualité élevée pour recyclage ou réutilisation.
PCT/AU2008/000132 2007-02-06 2008-02-06 Système de traitement d'eaux résiduaires domestiques Ceased WO2008095236A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007900551A AU2007900551A0 (en) 2007-02-06 Domestic wastewater treatment system
AU2007900551 2007-02-06

Publications (1)

Publication Number Publication Date
WO2008095236A1 true WO2008095236A1 (fr) 2008-08-14

Family

ID=39681176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2008/000132 Ceased WO2008095236A1 (fr) 2007-02-06 2008-02-06 Système de traitement d'eaux résiduaires domestiques

Country Status (1)

Country Link
WO (1) WO2008095236A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009115625A1 (fr) * 2008-03-19 2009-09-24 Hbio Reto Xxi, S.L. Système de régénération des eaux usées
DE202009013628U1 (de) * 2009-10-07 2011-03-10 Enveko Gmbh Vorrichtung zur Reinigung von Verunreinigungen enthaltendem Abwasser
CN116924645A (zh) * 2022-04-02 2023-10-24 陈志伟 一种简易式人体排泄物综合处理系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10151483A (ja) * 1996-11-25 1998-06-09 Matsushita Electric Works Ltd 浄化槽
US20020008065A1 (en) * 2000-03-17 2002-01-24 Elston Clint R. Waste and wastewater treatment and recycling system
US6946073B2 (en) * 2003-09-02 2005-09-20 Ch2M Hill, Inc. Method for treating wastewater in a membrane bioreactor to produce a low phosphorus effluent
AU2005200936A1 (en) * 2004-01-08 2005-09-22 Mezone Pty Ltd The treatment of waste water

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10151483A (ja) * 1996-11-25 1998-06-09 Matsushita Electric Works Ltd 浄化槽
US20020008065A1 (en) * 2000-03-17 2002-01-24 Elston Clint R. Waste and wastewater treatment and recycling system
US6946073B2 (en) * 2003-09-02 2005-09-20 Ch2M Hill, Inc. Method for treating wastewater in a membrane bioreactor to produce a low phosphorus effluent
AU2005200936A1 (en) * 2004-01-08 2005-09-22 Mezone Pty Ltd The treatment of waste water

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199833, Derwent World Patents Index; Class D15, AN 1998-380427 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009115625A1 (fr) * 2008-03-19 2009-09-24 Hbio Reto Xxi, S.L. Système de régénération des eaux usées
DE202009013628U1 (de) * 2009-10-07 2011-03-10 Enveko Gmbh Vorrichtung zur Reinigung von Verunreinigungen enthaltendem Abwasser
CN116924645A (zh) * 2022-04-02 2023-10-24 陈志伟 一种简易式人体排泄物综合处理系统

Similar Documents

Publication Publication Date Title
US20050274669A1 (en) Wastewater treatment system
RU2305662C1 (ru) Способ очистки сточных вод и устройство для его осуществления
US20090065412A1 (en) Apparatus for waste water treatment
AU2017286249B2 (en) Method of combining recuperative digestion with a contact tank and dissolved air flotation
CZ282411B6 (cs) Čištění odpadních vod kombinací kontinuálního a diskontinuálního průtoku
CN106698863A (zh) 用于水冲型移动厕所冲厕污水的内循环处理工艺及系统
US9481591B1 (en) Device and process to treat and disinfect sewage, food processing wastewater and other biologically contaminated water
CN104176886A (zh) 一种微动力mbr污水处理装置及方法
CA2931328A1 (fr) Puits de traitement ameliore
JP5786998B1 (ja) 有機性排水の生物処理方法及び装置
WO2008095236A1 (fr) Système de traitement d'eaux résiduaires domestiques
WO2021074307A1 (fr) Système de traitement d'eaux usées
Jin et al. A dispersed-ozone flotation (DOF) separator for tertiary wastewater treatment
US7147771B2 (en) Effluent treatment system
CN108911366A (zh) 一种农村一体化污水处理系统
RU178806U1 (ru) Локальное очистное устройство
CN211946461U (zh) 一种序批式活性污泥法污水生物处理装置
US20120103888A1 (en) Waste water recycling system
CN210945245U (zh) 一种洗羊毛废水处理设备
EP0665819B1 (fr) Systeme de traitement d'eaux usees a inodorisation
JPH08290184A (ja) 浄化槽
CN110606567A (zh) 一种序批式活性污泥法污水生物处理装置
CN208700838U (zh) 一种垃圾渗滤液处理系统
CN215627417U (zh) 一种多级耦合污水处理系统
CN111484186A (zh) 一种生活污水生物处理方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08700427

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 17-11-2009)

122 Ep: pct application non-entry in european phase

Ref document number: 08700427

Country of ref document: EP

Kind code of ref document: A1