MD4214B1 - Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides - Google Patents

Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides Download PDF

Info

Publication number
MD4214B1
MD4214B1 MDA20120054A MD20120054A MD4214B1 MD 4214 B1 MD4214 B1 MD 4214B1 MD A20120054 A MDA20120054 A MD A20120054A MD 20120054 A MD20120054 A MD 20120054A MD 4214 B1 MD4214 B1 MD 4214B1
Authority
MD
Moldova
Prior art keywords
porous structure
treatment
sulfides
modifying
adsorbent
Prior art date
Application number
MDA20120054A
Other languages
Moldavian (mo)
Romanian (ro)
Other versions
MD4214C1 (en
Inventor
Silvia Cibotaru
Mikhaj Chyobanu
Viktor Botsan
Tudor Lupascu
Ion SANDU
Anca-Monica Cretu
Andrei Nistor
Mihail Ciobanu
Victor Botan
Original Assignee
Inst De Chimie Al Academiei De Stiinte A Moldovei
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 Inst De Chimie Al Academiei De Stiinte A Moldovei filed Critical Inst De Chimie Al Academiei De Stiinte A Moldovei
Priority to MDA20120054A priority Critical patent/MD4214C1/en
Publication of MD4214B1 publication Critical patent/MD4214B1/en
Publication of MD4214C1 publication Critical patent/MD4214C1/en

Links

Classifications

    • 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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention relates to processes for modifying the porous structure of activated coals impregnated with Cu(II) and their use for the treatment by catalytic oxidation of underground waters from hydrogen sulfide and sulfides.The process for modifying the porous structure of activated coal impregnated with Cu(II) includes the mechanical agitation for one hour at room temperature of an adsorbent suspension in demineralized water with concomitant barbotage of oxygen. As a result is reduced the specific surface and volume of adsorbent micropores.The process for treatment of underground waters from hydrogen sulfide and sulfides by catalytic oxidation includes the addition in the underground water of activated coal impregnated with Cu(II), with a modified porous structure according to the above-mentioned process, the mechanical mixing of the coal-water suspension for an hour at room temperature with concomitant barbotage of oxygen, afterwards the activated coal is separated from the treated water for a possible reuse in a new cycle of treatment.Use of the adsorbent with the modified in that way porous structure excludes the formation of sulfur on its surface, which indicates an increase of the catalytic activity of such adsorbent.
MDA20120054A 2012-06-18 2012-06-18 Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides MD4214C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20120054A MD4214C1 (en) 2012-06-18 2012-06-18 Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20120054A MD4214C1 (en) 2012-06-18 2012-06-18 Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides

Publications (2)

Publication Number Publication Date
MD4214B1 true MD4214B1 (en) 2013-04-30
MD4214C1 MD4214C1 (en) 2013-11-30

Family

ID=48227599

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20120054A MD4214C1 (en) 2012-06-18 2012-06-18 Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides

Country Status (1)

Country Link
MD (1) MD4214C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4435C1 (en) * 2015-09-14 2017-04-30 Институт Химии Академии Наук Молдовы Process for purification of deep waters from ammonium, ammonia and hydrogen sulfide ions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111099712A (en) * 2020-01-15 2020-05-05 山东汇海医药化工有限公司 Method for treating sodium sulfide wastewater generated in DCC synthesis process by using oxygen

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192156A (en) * 1962-04-26 1965-06-29 Pittsburgh Activated Carbon Co Removal of hydrogen sulfide from water
JPS53113287A (en) * 1977-03-15 1978-10-03 Asahi Chem Ind Co Ltd Regeneration method of active carbon
US4264451A (en) * 1978-05-22 1981-04-28 City Of Orlando Water purification method
JPS61257238A (en) * 1985-05-11 1986-11-14 Chiyoda Chem Eng & Constr Co Ltd Oxidation treatment method for sodium sulfide-containing aqueous solution and its catalyst
JPS61259754A (en) * 1985-05-11 1986-11-18 Mitsubishi Paper Mills Ltd Process for treating aqueous solution containing sodium sulfide and its catalyst
RU2013379C1 (en) * 1991-11-19 1994-05-30 Научно-исследовательский институт кожи Method of purifying sewage against sulfides
US5338463A (en) * 1993-05-12 1994-08-16 Mobil Oil Corporation Wastewater treatment by catalytic oxidation
RU2042644C1 (en) * 1994-01-05 1995-08-27 Лев Николаевич Фесенко Method of removing hydrogen sulfide from water
US5470486A (en) * 1994-06-20 1995-11-28 Uop Conversion of water-soluble inorganic sulfide compounds in an aqueous stream
MD660G2 (en) * 1996-05-16 1997-08-31 Институт Химии Академии Наук Молдовы Process for production of activated carbon
MD999G2 (en) * 1998-02-23 1999-06-30 Институт Химии Академии Наук Молдовы Process for activated charcoal obtaining
MD1005G2 (en) * 1998-02-23 1999-07-31 Институт Химии Академии Наук Молдовы Process for activated charcoal obtaining
WO2002043858A2 (en) * 2000-11-29 2002-06-06 Research Foundation Of The City University Of New York Process to prepare adsorbents from organic fertilizer and their applications for removal of acidic gases from wet air streams
RU2224724C1 (en) * 2002-06-21 2004-02-27 Кочетков Алексей Юрьевич Method of oxidizing sulfur and organic compounds in solutions (options)
MD2333G2 (en) * 2003-02-20 2004-06-30 Институт Химии Академии Наук Молдовы Process for regeneration of the activated coal exhausted in the water treatment process
MD2480G2 (en) * 2003-07-17 2005-01-31 Институт Химии Академии Наук Молдовы Process for water purification from sulphureted hydrogen and/or sulphides
MD2478G2 (en) * 2003-07-17 2005-01-31 Институт Химии Академии Наук Молдовы Proces for regeneration of the used active coal
MD2523G2 (en) * 2003-08-05 2005-03-31 Институт Химии Академии Наук Молдовы Process for regeneration of the used active coal (variants)
MD3097G2 (en) * 2005-12-06 2007-02-28 Институт Химии Академии Наук Молдовы Process for underground water purification from sulphureted hydrogen and/or sulphides
MD3482G2 (en) * 2007-04-25 2008-08-31 Институт Химии Академии Наук Молдовы Process for active coal modification
RU2361822C2 (en) * 2007-08-03 2009-07-20 Государственное образовательное учреждение высшего профессионального образования Новосибирский государственный архитектурно-строительный университет (Сибстрин) Method of purifying water from hydrogen sulphide and sulphides
MD3776G2 (en) * 2007-09-06 2009-07-31 Государственный Университет Молд0 Process for photocatalytic regeneration of waste active coal
RU2408544C1 (en) * 2009-05-27 2011-01-10 Сергей Анатольевич Ассаулюк Method of purifying water from hydrogen sulphide
JP5655182B2 (en) * 2009-08-06 2015-01-21 清水建設株式会社 Method for removing dissolved sulfide and apparatus for removing dissolved sulfide
CN102139875B (en) * 2011-04-27 2013-09-18 南京科孚纳米技术有限公司 Method for preparing super activated carbon by utilizing modification supercritical oxidation technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4435C1 (en) * 2015-09-14 2017-04-30 Институт Химии Академии Наук Молдовы Process for purification of deep waters from ammonium, ammonia and hydrogen sulfide ions

Also Published As

Publication number Publication date
MD4214C1 (en) 2013-11-30

Similar Documents

Publication Publication Date Title
SA517381767B1 (en) Methods for the formation of peroxyformic acid and its uses
EA201791779A1 (en) PRODUCTION OF GRAPHITE FROM BIOMASS
EA201491941A1 (en) METHOD OF SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM GAS MIXTURES AND APPLICATION OF THIOALKANOL FOR SELECTIVE REMOVAL OF HYDROGEN SULFIDE
EA201500531A1 (en) REGULATION OF GAS COMPOSITION IN GAS-STEAM INSTALLATION WITH MEMBRANES
EP2451751A4 (en) Low concentration wastewater treatment system and process
WO2010096571A3 (en) Selenium removal process
CO2019012534A2 (en) Systems and processes for removing hydrogen sulfide from gas streams
MX2020013125A (en) Hydrogen sulfide removal process by use of a sulfur dye catalyst.
MY166188A (en) Enrichment of metal sulfide ores by oxidant assisted froth flotation
MY167653A (en) Seawater flue-gas desulfurization system and power generation system
PH12013501914A1 (en) H2s conversion to sulfur using a regenerated iodine solution
MX2016010027A (en) PROCESS FOR THE BIOLOGICAL CONVERSION OF BISULFIDE IN ELEMENTAL SULFUR.
IN2015DN01439A (en)
EP2855009A4 (en) Carbon adsorbent for hydrogen sulfide removal from gases containing same, and regeneration of adsorbent
IN2015DN00475A (en)
SA518391293B1 (en) Method for Removing Pollution from Water by Adsorption on Activated Carbon
IN2014KN02582A (en)
IN2012DN01937A (en)
SG2013043237A (en) Adsorbent for chloride removal
MD4214B1 (en) Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides
MY160537A (en) Processing of vegetable oils
GB201212676D0 (en) Apparatus and method for aqueous organic waste treatment
PH12017500382A1 (en) Method for purifying plant-derived carbon percursor
MX342214B (en) System and method for catalyst regeneration.
TN2018000328A1 (en) Sulfur dioxide removal from waste gas

Legal Events

Date Code Title Description
TK4A Erratum in official gazette in regard to patent for invention

Free format text: RECTIFICATION IN INID 51

FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees