PL2279153T3 - Sposób obróbki i/lub wstępnej obróbki płynnego obornika lub odrzutów z biogazowni dla wyeliminowania szkodliwych substancji, zwłaszcza azotu, fosforu i cząsteczek zapachowych - Google Patents

Sposób obróbki i/lub wstępnej obróbki płynnego obornika lub odrzutów z biogazowni dla wyeliminowania szkodliwych substancji, zwłaszcza azotu, fosforu i cząsteczek zapachowych

Info

Publication number
PL2279153T3
PL2279153T3 PL09735169T PL09735169T PL2279153T3 PL 2279153 T3 PL2279153 T3 PL 2279153T3 PL 09735169 T PL09735169 T PL 09735169T PL 09735169 T PL09735169 T PL 09735169T PL 2279153 T3 PL2279153 T3 PL 2279153T3
Authority
PL
Poland
Prior art keywords
elimination
phosphorus
treating
harmful substances
liquid manure
Prior art date
Application number
PL09735169T
Other languages
English (en)
Inventor
Anni Alitalo
Erkki Aura
Risto Seppälä
Original Assignee
Pellon Group Oy
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 Pellon Group Oy filed Critical Pellon Group Oy
Publication of PL2279153T3 publication Critical patent/PL2279153T3/pl

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/121—Multistep treatment
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C3/00—Treating manure; Manuring
    • 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
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/10—Addition or removal of substances other than water or air to or from the material during the treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/40—Treatment of liquids or slurries
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/58—Reaction vessels connected in series or in parallel
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/02—Odour removal or prevention of malodour
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin
    • 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
    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Genetics & Genomics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Soil Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Clinical Laboratory Science (AREA)
  • Environmental Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physical Water Treatments (AREA)
  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)
PL09735169T 2008-04-25 2009-04-24 Sposób obróbki i/lub wstępnej obróbki płynnego obornika lub odrzutów z biogazowni dla wyeliminowania szkodliwych substancji, zwłaszcza azotu, fosforu i cząsteczek zapachowych PL2279153T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20085371A FI20085371A0 (fi) 2008-04-25 2008-04-25 Menetelmä lietelannan tai biokaasulaitoksen rejektin käsittelemiseksi ja/tai esikäsittelemiseksi haitta-aineiden, erityisesti typen, fosforin ja hajumolekyylien poistamiseksi
PCT/FI2009/050328 WO2009130396A1 (en) 2008-04-25 2009-04-24 Method for treating and/or pretreating liquid manure or biogas plant reject for the elimination of harmful substances, particularly nitrogen, phosphorus, and odor molecules
EP09735169.6A EP2279153B1 (en) 2008-04-25 2009-04-24 Method for treating and/or pretreating liquid manure or biogas plant reject for the elimination of harmful substances, particularly nitrogen, phosphorus, and odor molecules

Publications (1)

Publication Number Publication Date
PL2279153T3 true PL2279153T3 (pl) 2017-12-29

Family

ID=39385994

Family Applications (1)

Application Number Title Priority Date Filing Date
PL09735169T PL2279153T3 (pl) 2008-04-25 2009-04-24 Sposób obróbki i/lub wstępnej obróbki płynnego obornika lub odrzutów z biogazowni dla wyeliminowania szkodliwych substancji, zwłaszcza azotu, fosforu i cząsteczek zapachowych

Country Status (9)

Country Link
US (1) US9527759B2 (pl)
EP (1) EP2279153B1 (pl)
CN (1) CN102015553B (pl)
DK (1) DK2279153T3 (pl)
ES (1) ES2643188T3 (pl)
FI (1) FI20085371A0 (pl)
PL (1) PL2279153T3 (pl)
RU (1) RU2463259C2 (pl)
WO (1) WO2009130396A1 (pl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2515038C1 (ru) * 2012-11-20 2014-05-10 Николай Федорович Кокарев Способ подготовки птичьего помета для анаэробного сбраживания
DE102014119193A1 (de) * 2014-12-19 2016-06-23 Niels Christian Holm Verfahren und Vorrichtung zur Rücklösung und Wiedergewinnung von Struvit
US10329206B2 (en) * 2015-12-16 2019-06-25 University Of Maryland, Baltimore County Nutrient extraction and recovery device for isolation and separation of target products from animal produced waste streams
FI128744B (fi) * 2019-04-05 2020-11-30 Pellon Group Oy Menetelmä typpipitoisen lannoitteen ja maanparannusaineen valmistamiseksi lietelannasta ja/tai lannasta
CN120025036B (zh) * 2025-02-28 2026-07-14 国能(南京)水务环保科技有限公司 一种燃煤电厂浓盐水处理系统与方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929600A (en) * 1974-04-09 1975-12-30 Iwao Engineering Co Inc Process of removing ammoniacal nitrogen from waste water
NL8801827A (nl) 1988-03-29 1989-10-16 Drese Jan Theo Werkwijze voor het behandelen van mest, in het bijzonder drijfmest, alsmede inrichting voor het toepassen van de werkwijze.
JP2734750B2 (ja) 1990-07-02 1998-04-02 日本電気株式会社 音声認識装置
RU2013382C1 (ru) * 1991-03-19 1994-05-30 Харьковский политехнический институт Способ очистки сточных вод и установка для его осуществления
RU2067967C1 (ru) * 1992-07-27 1996-10-20 Амбросова Галина Тарасовна Способ очистки сточных вод животноводческих комплексов
JP2810308B2 (ja) 1993-12-13 1998-10-15 旭化成工業株式会社 微生物及びその菌体を含有する脱臭剤
US5744037A (en) * 1995-11-28 1998-04-28 Ebara Corporation Method of treating foul water
JPH09262600A (ja) * 1996-03-29 1997-10-07 Chugai Ro Co Ltd 下水汚泥処理における脱臭方法
US6569332B2 (en) * 2000-06-26 2003-05-27 Jack L. Ainsworth Integrated anaerobic digester system
KR20020031916A (ko) 2000-10-24 2002-05-03 김일선 토양 미생물을 이용한 유기성 폐수의 정화처리 방법과 그장치
UA75605C2 (en) * 2001-02-01 2006-05-15 Green Farm Energy As Method for treating organic waste substrates and device for realizing method
KR100465534B1 (ko) * 2002-03-28 2005-01-13 서희동 축산분뇨의 처리방법
JP2004008843A (ja) 2002-06-04 2004-01-15 Mitsubishi Kakoki Kaisha Ltd 有機性排水の処理方法
US6866779B1 (en) * 2002-07-22 2005-03-15 Western Environmental Engineering Company Nitrogen recovery system and method
US7179633B2 (en) * 2004-12-29 2007-02-20 Council Of Scientific And Industrial Research Biological neutralization of highly alkaline textile industrial wastewater
CN100551881C (zh) * 2007-03-05 2009-10-21 清华大学 利用有机污泥生产液态有机肥的方法
US7811455B2 (en) * 2007-06-07 2010-10-12 Burke Dennis A Removal of ammonia from fermentation effluent and sequestration as ammonium bicarbonate and/or carbonate

Also Published As

Publication number Publication date
EP2279153A4 (en) 2014-05-14
RU2463259C2 (ru) 2012-10-10
EP2279153B1 (en) 2017-07-12
FI20085371A0 (fi) 2008-04-25
US9527759B2 (en) 2016-12-27
DK2279153T3 (en) 2017-10-16
ES2643188T3 (es) 2017-11-21
WO2009130396A1 (en) 2009-10-29
US20110113840A1 (en) 2011-05-19
CN102015553A (zh) 2011-04-13
RU2010147567A (ru) 2012-05-27
CN102015553B (zh) 2013-03-20
EP2279153A1 (en) 2011-02-02

Similar Documents

Publication Publication Date Title
EP2367665A4 (en) COMPOSITION AND PROCESS FOR TREATING WOOD-BASED MATERIAL AND WOOD-BASED MATERIAL PROCESSED WITH SAID COMPOSITION
IL209702A0 (en) Method, apparatus and plant for desalinating saltwater using concentration difference energy
EP2103680A4 (en) PIPETTE CHIP WITH INCLUDED SUPPORT OR LIQUID, DEVICE FOR PROCESSING A PIPETTE CHIP WITH INCLUDED SUPPORT OR LIQUID, AND METHOD FOR PROCESSING A PIPETTE CHIP WITH INCLUDED SUPPORT OR LIQUID
PL2504649T3 (pl) Sposób i urządzenie do osuszania substancji o konsystencji szlamu, w szczególności osadów z oczyszczalni ścieków
AP3132A (en) Apparatus and method for treating waste
AP2012006392A0 (en) Method for treating cellulosic material and CGHII/CEL4A enzymes useful therein
EP2451378A4 (en) DEVICES AND METHOD FOR TREATING VESSELS AND BODY CHANNELS
WO2011161695A3 (en) Sinergistic composition of microbes, enzymes and cofactors for rapid treatment of wastewater and process therefor
ZA200906966B (en) Method and device for treating liquids, using an electrolytic drying stage
EP2231886A4 (en) PROCESS FOR TREATING LIQUID AND SOLID EFFLUENTS
IL188541A0 (en) Process for the treatment of organic waste and product obtained thereof
WO2009140013A3 (en) Methods of reducing greenhouse emissions from animal manure
IL199634A0 (en) Method of treating liquid waste
BRPI0921727A2 (pt) processo e sistema para o tratamento de biomassa
EP2328570A4 (en) PROCESS AND FORMULATION FOR TREATMENT OF UNDESIRABLE BIOLOGICAL CONDITIONS
FI20085371A0 (fi) Menetelmä lietelannan tai biokaasulaitoksen rejektin käsittelemiseksi ja/tai esikäsittelemiseksi haitta-aineiden, erityisesti typen, fosforin ja hajumolekyylien poistamiseksi
PL2390235T3 (pl) Sposób i instalacja do przetwarzania ciekłych odpadów organicznych
IL191124A0 (en) Apparatus and method for biological treatment of wastewater
BRPI0809304A2 (pt) Método para tratar material de revestimento de cuba de gasto contendo carbono e/ou material inorgânico
GB0423037D0 (en) Process and plant for treating biomass
GB201211693D0 (en) Method and apparatus for monitoring biological activity and controlling aeration in an activated sludge plant
WO2009014084A1 (ja) 対象物処理方法及び対象物処理システム
ZA201101929B (en) Biological method for the preventive treatment of abiotic surfaces
EP2189422A4 (en) ACTIVATED SLUDGE MATERIAL, REDUCTION PROCESS FOR EXCESSIVE SLUDGE IN A BIOREACTOR AND MAINTENANCE PROCESS FOR A BIOREACTOR
EP2178544A4 (en) PROCESS AND SUBSTANCE FOR PROMOTING PLANT GROWTH