MD129Y - Process for the purification of galvanochemical production sewage waters from ammonium ions - Google Patents

Process for the purification of galvanochemical production sewage waters from ammonium ions

Info

Publication number
MD129Y
MD129Y MDS20090028A MDS20090028A MD129Y MD 129 Y MD129 Y MD 129Y MD S20090028 A MDS20090028 A MD S20090028A MD S20090028 A MDS20090028 A MD S20090028A MD 129 Y MD129 Y MD 129Y
Authority
MD
Moldova
Prior art keywords
ammonium ions
galvanochemical
purification
production sewage
ammonium
Prior art date
Application number
MDS20090028A
Other languages
Romanian (ro)
Inventor
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 MDS20090028A priority Critical patent/MD129Z/en
Publication of MD129Y publication Critical patent/MD129Y/en
Publication of MD129Z publication Critical patent/MD129Z/en

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  • Treatment Of Water By Ion Exchange (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Inventia se refera la un procedeu de epurare a apelor uzate de la productiile galvano-chimice de ioni de amoniu. Procedeul de epurare a apelor uzate de la productiile galvano-chimice de ioni de amoniu include prelucrarea apei cu eluanti, continand ionii de Mg2+ obtinuti la regenerarea rasinilor schimbatoare de ioni utilizate la dedurizarea apei si cu solutiile uzate de la degresare alcalinizata continand trisodiufosfat la raportul masic [NH4+] : [Mg2+] : [PO43-] = 1 : (5,2…5,5) : (9,0…9,5) si pH-ul 8,5…10,0. Dupa care apa se prelucreaza prin electrocoagulare cu electrozi solubili de aluminiu la densitatea anodica a curentului de 0,2 … 0,5 Ŕ/dm2 si se separa prin electroflotare complexul compus din magneziu-amoniu-fosfat.The invention relates to a process for wastewater treatment from galvanic-chemical productions of ammonium ions. The process of wastewater treatment from galvanic-chemical productions of ammonium ions includes water processing with eluents, containing Mg2 + ions obtained at the regeneration of ion exchange resins used for water softening and with the solutions used from alkaline degreasing containing trisodiumphosphate. [NH4 +]: [Mg2 +]: [PO43-] = 1: (5.2 ... 5.5): (9.0 ... 9.5) and pH 8.5 ... 10.0. After that, the water is processed by electrocoagulation with soluble aluminum electrodes at an anodic current density of 0.2 ... 0.5 Ŕ / dm2 and the complex composed of magnesium-ammonium-phosphate is separated by electroflotation.

MDS20090028A 2009-02-26 2009-02-26 Process for the purification of galvanochemical production sewage waters from ammonium ions MD129Z (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDS20090028A MD129Z (en) 2009-02-26 2009-02-26 Process for the purification of galvanochemical production sewage waters from ammonium ions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDS20090028A MD129Z (en) 2009-02-26 2009-02-26 Process for the purification of galvanochemical production sewage waters from ammonium ions

Publications (2)

Publication Number Publication Date
MD129Y true MD129Y (en) 2010-01-29
MD129Z MD129Z (en) 2010-08-31

Family

ID=43568891

Family Applications (1)

Application Number Title Priority Date Filing Date
MDS20090028A MD129Z (en) 2009-02-26 2009-02-26 Process for the purification of galvanochemical production sewage waters from ammonium ions

Country Status (1)

Country Link
MD (1) MD129Z (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD320Z (en) * 2010-05-24 2011-08-31 Государственный Университет Молд0 Installation for the regeneration of cartridge with activated carbon or mineral sorbents used for purification of water from organic compounds

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1231G2 (en) * 1998-12-16 2000-05-31 Юрий ФРОЛОВ Process and device for water purification
MD2144C2 (en) * 2001-03-30 2003-11-30 Государственный Университет Молд0 Installation for sewage electrochemical treatment
MD2724G2 (en) * 2003-12-29 2005-11-30 Государственный Университет Молд0 Process for sewage galvanochemical cleaning and galvanocoagulating plant for realization thereof
MD3727G2 (en) * 2008-01-09 2009-05-31 Институт Химии Академии Наук Молдовы Continuous process for water purification from nitrites
  • 2009

Also Published As

Publication number Publication date
MD129Z (en) 2010-08-31

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Legal Events

Date Code Title Description
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)