IN2015KN00435A - - Google Patents

Info

Publication number
IN2015KN00435A
IN2015KN00435A IN435KON2015A IN2015KN00435A IN 2015KN00435 A IN2015KN00435 A IN 2015KN00435A IN 435KON2015 A IN435KON2015 A IN 435KON2015A IN 2015KN00435 A IN2015KN00435 A IN 2015KN00435A
Authority
IN
India
Prior art keywords
water
sulphate
concentrator
calcium
soluble metals
Prior art date
Application number
Inventor
Laura Nevatalo
Meer Tuomas Van Der
Bernd Kerstiens
Original Assignee
Outotec Finland 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 Outotec Finland Oy filed Critical Outotec Finland Oy
Publication of IN2015KN00435A publication Critical patent/IN2015KN00435A/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
    • C02F1/52—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
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
    • 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
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • 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
    • C02F1/5209—Regulation methods for flocculation or precipitation
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • 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
    • 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
    • C02F2101/101—Sulfur compounds
    • 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
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • 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
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C02F2209/006—Processes using a programmable logic controller [PLC] comprising a software program or a logic diagram
    • 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
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • 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

Abstract

The invention relates to a method and apparatus for re-moving sulphate, calcium and/or soluble metals from waste water, which method comprises the following steps a) a gypsum precipitation step b) an ettringite precipitation step,c) a first separation step, d) a neutralisation step and e) a second separation step in order to obtain water having a reduced sulphate, calcium and/or soluble metals content. The waste water is process water, effluent or sulphate containing water, such as mine water, recycle water from concentrator or discharge water from concentrator.
IN435KON2015 2012-08-27 2013-08-22 IN2015KN00435A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20125884A FI126285B (en) 2012-08-27 2012-08-27 Method for removing sulfate, calcium and / or other soluble metals from waste water
PCT/FI2013/050816 WO2014033361A1 (en) 2012-08-27 2013-08-22 Method for removing sulphate, calcium and/or other soluble metals from waste water

Publications (1)

Publication Number Publication Date
IN2015KN00435A true IN2015KN00435A (en) 2015-07-17

Family

ID=50182576

Family Applications (1)

Application Number Title Priority Date Filing Date
IN435KON2015 IN2015KN00435A (en) 2012-08-27 2013-08-22

Country Status (14)

Country Link
EP (1) EP2888206B1 (en)
CN (1) CN104603068A (en)
AR (1) AR092239A1 (en)
AU (1) AU2013308317B2 (en)
BR (1) BR112015003530B8 (en)
CA (2) CA2961057C (en)
CL (1) CL2015000392A1 (en)
EA (1) EA033375B1 (en)
ES (1) ES2739654T3 (en)
FI (1) FI126285B (en)
IN (1) IN2015KN00435A (en)
PT (1) PT2888206T (en)
WO (1) WO2014033361A1 (en)
ZA (1) ZA201501159B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9278875B2 (en) 2012-11-27 2016-03-08 Veolia Water Solutions & Technologies Support Process for reducing the sulfate concentration in a wastewater stream by employing regenerated gibbsite
AR094158A1 (en) * 2012-12-20 2015-07-15 Outotec Oyj METHOD FOR INDUSTRIAL WATER TREATMENT
FI127809B (en) * 2014-02-26 2019-03-15 Outotec Oyj Method of removing sulphate from waste water
FI126851B (en) * 2014-04-02 2017-06-30 Suominen Lauri Hannunpoika A method for removing sulfate from an aqueous solution
GB201407101D0 (en) 2014-04-22 2014-06-04 Paxton Richard G New process for the treatment of high sulphate waters
KR102340262B1 (en) * 2014-09-05 2021-12-15 에코랍 유에스에이 인코퍼레이티드 Addition of aluminum reagents to oxoanion-containing water streams
US10071923B2 (en) 2014-09-05 2018-09-11 Ecolab Usa Inc. Addition of aluminum reagents to oxoanion-containing water streams
US9389209B2 (en) 2014-09-05 2016-07-12 Ecolab Usa Inc. Oxoanion concentration determination using aluminum reagents
MX2018000858A (en) 2015-07-22 2018-05-04 Mintek Effluent treatment process - ph refinement for sulphate removal.
US10676381B2 (en) 2015-07-22 2020-06-09 Mintek Effluent treatment process for sulphate removal
CN106045121A (en) * 2016-07-14 2016-10-26 山东科技大学 Pretreatment method for rapidly decreasing concentration of hexavalent chromium in waste water
CN106830432A (en) * 2017-03-07 2017-06-13 中冶节能环保有限责任公司 A kind of iron content high alkalinity mine water treatment technique high and system
CN107117738B (en) * 2017-04-24 2019-12-17 华中科技大学 Manganese ore area wastewater treatment method
US20200216337A1 (en) * 2017-08-14 2020-07-09 Siemens Energy, Inc. Sulfate removal of wet air oxidized spent caustic
WO2019058216A1 (en) * 2017-09-20 2019-03-28 Smr Technologies Limited New process for the treatment of high sulphate waters
US20200247681A1 (en) 2017-09-20 2020-08-06 Smr Technologies Limited Suitable reagent for the treatment of high-sulphate waters
CN107673514A (en) * 2017-11-14 2018-02-09 上海电力学院 Sulfate radical removes the Waste Water Treatment utilized with recycling sludge and processing method
JP6970917B2 (en) 2017-12-27 2021-11-24 三菱マテリアル株式会社 Wastewater treatment method
JP6986226B2 (en) 2017-12-27 2021-12-22 三菱マテリアル株式会社 Wastewater treatment method
CN108203181A (en) * 2018-01-11 2018-06-26 武汉天空蓝环保科技有限公司 Circulating cooling water of power plant wastewater treatment method and system
IT201900010095A1 (en) * 2019-06-26 2020-12-26 Agromatrici S R L Plant and process for the production of defecation calcium carbonate.
WO2021028621A1 (en) 2019-08-15 2021-02-18 Teknologian Tutkimuskeskus Vtt Oy Use of secondary aluminium in precipitation of sulphate from waste water
CA3109965A1 (en) * 2020-02-23 2021-08-23 Kurita America Inc. Sulfate and trace metal precipitation methods and compositions
CN111453880A (en) * 2020-04-09 2020-07-28 安徽浩悦环境科技有限责任公司 Method for removing waste liquid containing various heavy metals by combined precipitation method
SE545642C2 (en) 2020-07-16 2023-11-21 Axolot Solutions Holding Ab A method and a system for removal of sulfate from wastewater by electrocoagulation
CN114735723A (en) * 2021-06-22 2022-07-12 华融化学股份有限公司 Potash crude brine refining process
US11939519B2 (en) 2022-08-29 2024-03-26 Saudi Arabian Oil Company Methods and systems to reduce scale formation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250626B2 (en) * 1986-06-30 1996-09-11 Walhalla-Kalk Entwicklungs- und Vertriebsgesellschaft mbH Process for the separation of sulfate ions from waste water
DE3709950C2 (en) * 1987-03-26 1996-06-05 Walhalla Kalk Entwicklungs Und Process for the treatment of waste water containing sulfate
DE4227815A1 (en) 1992-08-21 1994-02-24 Air Beteiligungs Gmbh Process for the spontaneous chemical precipitation of sulfates dissolved in water as ettringite and use of this process for the production of a low-chloride, aluminum oxide-containing gypsum anhydrite
GB9711451D0 (en) * 1997-06-03 1997-07-30 Ramsay James I A process for the treatment of effluent streams
CA2418472C (en) * 2000-08-21 2010-11-16 Csir Water treatment method
WO2011163451A1 (en) * 2010-06-23 2011-12-29 Veolia Water Solutions & Technologies Support A process for reducing the sulfate concentration in a wastewater stream
US20120031850A1 (en) * 2010-08-05 2012-02-09 Kevin Smith Extraction of Sulfate from Water

Also Published As

Publication number Publication date
ZA201501159B (en) 2021-09-29
AU2013308317A1 (en) 2015-03-05
EA033375B1 (en) 2019-10-31
AR092239A1 (en) 2015-04-08
BR112015003530B8 (en) 2023-02-07
EP2888206A1 (en) 2015-07-01
EA201590361A1 (en) 2015-08-31
WO2014033361A1 (en) 2014-03-06
PT2888206T (en) 2019-08-19
CA2961057C (en) 2020-06-30
AU2013308317B2 (en) 2016-12-22
FI126285B (en) 2016-09-15
CA2881769A1 (en) 2014-03-06
ES2739654T3 (en) 2020-02-03
CA2881769C (en) 2020-07-21
CA2961057A1 (en) 2014-03-06
CN104603068A (en) 2015-05-06
EP2888206A4 (en) 2016-10-19
EP2888206B1 (en) 2019-05-22
FI20125884A (en) 2014-04-03
BR112015003530B1 (en) 2021-10-19
BR112015003530A2 (en) 2017-07-04
CL2015000392A1 (en) 2015-06-26

Similar Documents

Publication Publication Date Title
IN2015KN00435A (en)
MY172889A (en) System and method for gas recovery and reuse
MX2015017871A (en) Organic waste processing.
MY179289A (en) Method for recovering ash from waste incineration
EA201691912A1 (en) METHOD OF CLEANING HIGH-SULFATE WATER
MX2018000858A (en) Effluent treatment process - ph refinement for sulphate removal.
MX351340B (en) Improved process for production of fibrinogen and fibrinogen produced thereby.
MX365731B (en) Combined tailings disposal for minerals processes background of the invention.
GB2537519A (en) Magnesium metal ore waste in well cementing
MX2017013100A (en) Process for isolating and purifying ambrox.
MX349909B (en) Method and installation for recovery and utilisation of methane from an anaerobic liquid effluent.
EP3162770A3 (en) A method for efficiently recycling a stream containing iron sludge
MX2020000433A (en) Method for recovering phosphoric acid from fermentation liquor or fermentation waste liquor, and reusing same.
WO2018101699A3 (en) Method for treating flue gas-desulfurization wastewater using electrolysis device
CY1118785T1 (en) PROCEDURE FOR THE RECOVERY OF NALPHEFEN HYDRAULIC
MX2014002604A (en) Method for solid waste separation and processing.
MX2009010494A (en) Method for separating oil from sludge.
TW201129414A (en) Recycling method for removing waste liquid of tetraalkylammonium ions
PH12014502083A1 (en) Treatment of acid mine drainage
PL2170773T3 (en) Method for decontamination of explosives production process waste water
UA81844U (en) Process for additional purification of waste water from ions of heavy metals in agitation stream
GB201505662D0 (en) System and method for modular batch production of bio-methane from wet municipal solid waste (MSW)
PT3820821T (en) Process and system for purifying waste water by flotation
EP4166501A4 (en) Method for recovering gypsum from waste gypsum boards
EP3752292A4 (en) Method, apparatus, and system for providing an integrated bioenergy complex to process mixed solid waste