DK151089A - Method for the manufacture of dimensionally stable straw briquettes and transportable apparatus for performing the method - Google Patents

Method for the manufacture of dimensionally stable straw briquettes and transportable apparatus for performing the method

Info

Publication number
DK151089A
DK151089A DK151089A DK151089A DK151089A DK 151089 A DK151089 A DK 151089A DK 151089 A DK151089 A DK 151089A DK 151089 A DK151089 A DK 151089A DK 151089 A DK151089 A DK 151089A
Authority
DK
Denmark
Prior art keywords
ions
ammonium
magnesium
stage
waste water
Prior art date
Application number
DK151089A
Other languages
Danish (da)
Other versions
DK151089D0 (en
Inventor
Dr Rainer Schulze-Rettmer
Dipl-Ing Touradj Yawari
Original Assignee
Schulze Rettmer Dr Rainer
Yawari Dipl Ing Touradj
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6351008&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK151089(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schulze Rettmer Dr Rainer, Yawari Dipl Ing Touradj filed Critical Schulze Rettmer Dr Rainer
Publication of DK151089D0 publication Critical patent/DK151089D0/en
Publication of DK151089A publication Critical patent/DK151089A/en

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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/45—Phosphates containing plural metal, or metal and ammonium
    • C01B25/451—Phosphates containing plural metal, or metal and ammonium containing metal and ammonium
    • 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
    • C02F1/5254—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using magnesium compounds and phosphoric acid for removing ammonia
    • 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
    • C02F2209/001—Upstream control, i.e. monitoring for predictive control
    • 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
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • 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
    • C02F2209/14—NH3-N
    • 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
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Physical Water Treatments (AREA)

Abstract

Process for the purification of waste water (effluent) with a high content of ammonium ions and containing phosphate ions by precipitation of magnesium ammonium phosphate. In a standardisation stage, the ammonium ion content of the waste water is determined and, depending on the magnitude of the ammonium ion content of the waste water, phosphate ions are added if necessary. A slurry of magnesium oxide and/or magnesium ions in excess is added in a mixing stage and the pH is adjusted to the alkaline region. Between the standardisation stage and the mixing stage a pre-treatment of the standardised water is carried out for a residence time of 5 to 30 minutes, during which the ph is adjusted to the acid region. Subsequently, in the mixing stage, the pH is slowly raised to an almost neutral level until an initial turbidity develops. Magnesium ammonium phosphate precipitates out when the pH is increased further. Discharge water materially free from ammonium ions is drawn off.
DK151089A 1988-03-30 1989-03-29 Method for the manufacture of dimensionally stable straw briquettes and transportable apparatus for performing the method DK151089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3810720A DE3810720A1 (en) 1988-03-30 1988-03-30 METHOD FOR CLEANING, IN PARTICULAR. FOR CONTINUOUS CLEANING OF WASTE WATER WITH HIGH AMMONIUM ION

Publications (2)

Publication Number Publication Date
DK151089D0 DK151089D0 (en) 1989-03-29
DK151089A true DK151089A (en) 1989-10-01

Family

ID=6351008

Family Applications (1)

Application Number Title Priority Date Filing Date
DK151089A DK151089A (en) 1988-03-30 1989-03-29 Method for the manufacture of dimensionally stable straw briquettes and transportable apparatus for performing the method

Country Status (4)

Country Link
EP (1) EP0335280B1 (en)
AT (1) ATE67160T1 (en)
DE (2) DE3810720A1 (en)
DK (1) DK151089A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009082A1 (en) * 1990-03-21 1991-09-26 Aquamot Ag METHOD FOR CLEANING INDUSTRIAL, AGRICULTURAL, OR PRIVATE WASTEWATER FROM YOUR AMMONIUM COMPOUNDS
DK278890D0 (en) * 1990-11-20 1990-11-20 Niels Ole Vesterager METHOD OF TREATING A BIOMASS
FR2669619B1 (en) * 1990-11-26 1993-01-08 Elf Aquitaine PROCESS FOR THE DISPOSAL OF AMMONIA FROM WASTEWATER.
NL9401495A (en) * 1994-09-15 1996-04-01 Ceres Milieu Holding Bv Method and device for dephosphating pig manure.
DE4434414A1 (en) * 1994-09-26 1996-03-28 Neumann & Stallherm Gmbh Continuous purificn. of waste water contg. ammonium ions
EP0915058A3 (en) * 1997-11-07 1999-07-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for recovering ammonia from wastewater containing ammonium ions
DE19829799C2 (en) * 1998-07-03 2001-03-29 Fraunhofer Ges Forschung Process for recycling manure
EP1084993A1 (en) * 1999-09-14 2001-03-21 Eco Flanders S.A. Device for processing manure
DE102004033310A1 (en) 2004-07-08 2006-01-26 Hans Huber Ag Maschinen- Und Anlagenbau Process and apparatus for separating magnesium ammonium phosphate MAP from wastewater
DE102008011005A1 (en) 2007-06-01 2008-12-04 Matschiner, Barbara, Dr. Method for producing ammonia from solution containing ammonium nitrogen for producing nitrogenous compounds like nitric acid, urea, nitrogen fertilizers, and for pre-products of plastics, involves pulse impressing solution
DE102008050349B4 (en) 2007-10-02 2013-01-17 Remondis Aqua Gmbh & Co. Kg Process for the precipitation of phosphorus from phosphate-contaminated wastewater
KR101019200B1 (en) 2008-02-11 2011-03-03 (주)엔텍스 Nitrogen-rich waste water treatment method and method for producing struvite
US8262765B2 (en) * 2008-08-08 2012-09-11 Ajinomoto North America, Inc. Method of preparing a controlled release fertilizer
ITMI20090258A1 (en) * 2009-02-25 2010-08-26 Arcangelo Ventura PROCESS FOR WASTEWATER TREATMENT.
FR2944276B1 (en) * 2009-04-14 2011-04-01 Rhodia Operations PROCESS FOR RECOVERING RARE LANDS FROM A SOLID MIXTURE CONTAINING HALOPHOSPHATE AND A COMPOUND OF ONE OR MORE RARE EARTHS
CN102773083B (en) * 2012-07-18 2014-07-30 常州大学 Preparation method of chemical adsorption material for removing ammonium ions in wastewater
EP3606878A1 (en) * 2017-04-06 2020-02-12 Universiteit Gent Method for recovering n, k, and p from liquid waste stream
CN110997561A (en) 2017-06-26 2020-04-10 孟山都技术公司 Phosphorus control of waste streams from glyphosate manufacturing processes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3732896A1 (en) * 1986-11-07 1988-08-25 Schulze Rettmer Rainer Process for eliminating ammonia and phosphate from waste water and process water

Also Published As

Publication number Publication date
ATE67160T1 (en) 1991-09-15
DE58900272D1 (en) 1991-10-17
EP0335280A1 (en) 1989-10-04
DK151089D0 (en) 1989-03-29
DE3810720A1 (en) 1989-10-26
EP0335280B1 (en) 1991-09-11

Similar Documents

Publication Publication Date Title
DK151089A (en) Method for the manufacture of dimensionally stable straw briquettes and transportable apparatus for performing the method
US4698163A (en) Treatment of phosphate-containing wastewater
ES8104148A1 (en) Process for treating waste water.
CA2182357A1 (en) Method of treating waste water to remove harmful ion by coagulating sedimentation
ES8104147A1 (en) Process for treating waste water.
EP0217962A4 (en) Method of treating active sludge in waste water.
EP0284976A3 (en) Process for waste water purification with batch feed to the activated sludge tank
CA2165168A1 (en) Method for the treatment of water treatment sludge
US5853573A (en) Groundwater total cyanide treatment apparatus
AU618456B2 (en) Method for treating muddy water
US4584107A (en) Method of treating effluents containing sulfur oxides
GR3005974T3 (en)
CA2309091A1 (en) Removal of pollutants from effluents with electrochemical treatment
JPS5687496A (en) Decontamination of water containing organics and phosphorus
GB1512481A (en) Process for removal of proteinaceous matter from liquid effluents
GB1334052A (en) Removal of phosphorus from waste liquids
EP0263424A3 (en) Process for removing arsenic from waste water containing arsenic
Nicolle Lime treatment of bleachery effluent
JPS565192A (en) Highly advanced treatment of waste water
JPS56161892A (en) Unstationary active sludge process
DE3360269D1 (en) Method for the anaerobic digestion of rinse and wash waters and settled sludge transport waters containing calcium ions
Bowie Jr et al. CHEMICAL PRECIPITATION‐COAGULATION FOR ORGANIC COLOR REMOVAL FROM GOUNDWATERS 1
ATE204557T1 (en) METHOD FOR THE MICROBIOLOGICAL PURIFICATION OF SLUDGES CONTAINING HEAVY METALS
HUT48548A (en) Process for decreasing the content of phosphor in sewages
JP2763268B2 (en) Return water treatment method

Legal Events

Date Code Title Description
PBP Patent lapsed
ATS Application withdrawn