MD3416F1 - Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides - Google Patents

Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides

Info

Publication number
MD3416F1
MD3416F1 MDA20060091A MD20060091A MD3416F1 MD 3416 F1 MD3416 F1 MD 3416F1 MD A20060091 A MDA20060091 A MD A20060091A MD 20060091 A MD20060091 A MD 20060091A MD 3416 F1 MD3416 F1 MD 3416F1
Authority
MD
Moldova
Prior art keywords
water
oxides
hydrogen
photocatalytic purification
sulphides
Prior art date
Application number
MDA20060091A
Other languages
Romanian (ro)
Other versions
MD3416G2 (en
Inventor
Victor Covaliov
Olga Covaliova
Original Assignee
Universitatea De Stat Din Moldova
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 Universitatea De Stat Din Moldova filed Critical Universitatea De Stat Din Moldova
Priority to MDA20060091A priority Critical patent/MD3416G2/en
Publication of MD3416F1 publication Critical patent/MD3416F1/en
Publication of MD3416G2 publication Critical patent/MD3416G2/en

Links

Landscapes

  • Catalysts (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Inventia se refera la un procedeu de epurare fotocatalitica a apelor subterane de hidrogen sulfuratsi/sau sulfuri si poate fi utilizata la intreprinderile industriale si in conditii casnice. Procedeul include aerarea in flux a apei in prezenta particulelor dispersate in apa de dioxid de titan si/sau oxid de zinc sau carbune activat, impregnat cu oxizi ai metalelor polivalente, la pseudofluidizarea particulelor cu aer imbogatit cu oxigen in campmagnetic continuu la consumul de aer de 5…10 L la1 g de hidrogen sulfurat si/sau de sulfuri, timpde 3…5 min la actiunea radiatiei ultraviolete cu lungimea de unda de 180…380 nm si intensitatea de 20…30 J/cm2?min. Totodata, in calitate de oxizi ai metalelor polivalente se utilizeaza oxizii de tipul MenOm, unde n = 1 sau 2; m = 1, 2, 3 sau 5; Me– Ni, Co, Mo, V, Mn, Cu, Fe, Ti sau Cr, la o concentratie a lor in apa de 3…5 g/dm3, iar concentratia particulelor de dioxid de titan este de 0,2…0,3 g/dm3, de oxid de zinc de 1,0…2,0 g/dm3.The invention relates to a process for photocatalytic purification of hydrogen sulphurated / or sulphurous groundwater and can be used in industrial enterprises and in domestic conditions. The process includes flowing aeration of water in the presence of particles dispersed in water of titanium dioxide and / or zinc oxide or activated carbon, impregnated with polyvalent metal oxides, at the pseudofluidization of oxygen enriched air particles in continuous magnetic field at air consumption. 5 ... 10 L to 1 g of hydrogen sulphide and / or sulfur, for 3 ... 5 min at the action of ultraviolet radiation with the wavelength of 180 ... 380 nm and the intensity of 20 ... 30 J / cm2? Min. At the same time, as oxides of polyvalent metals, oxides of the type MenOm are used, where n = 1 or 2; m = 1, 2, 3 or 5; Me– Ni, Co, Mo, V, Mn, Cu, Fe, Ti or Cr, at a water concentration of 3… 5 g / dm3, and the titanium dioxide particle concentration is 0.2… 0, 3 g / dm3, zinc oxide of 1.0 ... 2.0 g / dm3.

MDA20060091A 2006-03-22 2006-03-22 Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides MD3416G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20060091A MD3416G2 (en) 2006-03-22 2006-03-22 Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20060091A MD3416G2 (en) 2006-03-22 2006-03-22 Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides

Publications (2)

Publication Number Publication Date
MD3416F1 true MD3416F1 (en) 2007-10-31
MD3416G2 MD3416G2 (en) 2008-05-31

Family

ID=38664414

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20060091A MD3416G2 (en) 2006-03-22 2006-03-22 Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides

Country Status (1)

Country Link
MD (1) MD3416G2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858911A (en) * 2016-04-19 2016-08-17 肥东县柯文斌家庭农场 Nanometer type water clarification agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2508938C1 (en) * 2012-07-26 2014-03-10 Общество с ограниченной ответственностью Научно Производственный Центр "Квадра" Titanium oxide based photocatalyst and method for production thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2480G2 (en) * 2003-07-17 2005-01-31 Институт Химии Академии Наук Молдовы Process for water purification from sulphureted hydrogen and/or sulphides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858911A (en) * 2016-04-19 2016-08-17 肥东县柯文斌家庭农场 Nanometer type water clarification agent

Also Published As

Publication number Publication date
MD3416G2 (en) 2008-05-31

Similar Documents

Publication Publication Date Title
Diao et al. Photocatalytic degradation of malachite green by pyrite and its synergism with Cr (VI) reduction: performance and reaction mechanism
Canela et al. Gas-phase destruction of H2S using TiO2/UV-VIS
US7279103B2 (en) Process for the purification of acidic metal-bearing waste waters to permissible discharge levels with recovery of marketable metal products
CA2483146C (en) Essentially insoluble heavy metal sulfide slurry for wastewater treatment
Li et al. A review of metallurgical slags as catalysts in advanced oxidation processes for removal of refractory organic pollutants in wastewater
CA2636122A1 (en) Process of leaching gold
CN109292951B (en) By using MnOX/Fe0Method for treating organic wastewater by activating persulfate through nano composite material
Haimour et al. Equilibrium adsorption of hydrogen sulfide onto CuO and ZnO
MD3416F1 (en) Process for photocatalytic purification of underground waters from sulphureted hydrogen and/or sulphides
CN109368764A (en) A kind of method for treating water for strengthening persulfate oxidation
MD3097F1 (en) Process for underground water purification from sulphureted hydrogen and/or sulphides
CN108939852A (en) A kind of method that tin smelts the arsenic removal of arsenical fume washing, purifying
CN114702117B (en) Method for simultaneously removing mine heavy metals and organic pollutants by utilizing iron-containing solid wastes
CN106362347A (en) Treating method for high-concentration arsenic slag
Ghaemizade et al. Application of photocatalysts and their effective parameters in the treatment of colored wastewaters
CN115403224A (en) Treatment method of acidic arsenic-containing industrial wastewater
CN110272146B (en) Method for treating landfill leachate by coupling high-aluminum-iron sludge and industrial waste of water plant
CN101723506A (en) Material for purifying arsenate and chromate in drinking water and preparation method and application thereof
Song et al. The study progress and application of dithionite reduction technology in the treatment of environmental pollutants
Kulkarni et al. Nanomaterials for the Remediation of Selenium in Water
Wang et al. Inhibition of iron chelate degradation in liquid redox desulfurization by nanoscale MnO2 through H2O2 decomposition
Hao et al. Development of cost-effective and long-lasting integrated technology for H 2 S control from sludge in wastewater treatment plants
Wang et al. Oxidative absorption of elemental mercury in combustion flue gas using biochar-activated peroxydisulfate system
Xu et al. Oxidation of sulfur ions in oilfield wastewater by montmorillonite loaded Mn-catalyzed hydrogen peroxide oxidation
Wang et al. Degradation of residual xanthates in mineral processing wastewater-A review

Legal Events

Date Code Title Description
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