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The present study is concerned with the sulfidation treatment of metal reagents of Cu(OH)2, ZnO or Ni(OH)2 as a means of metal resources recovery. The sulfidation was conducted separately for each reagent by contacting the reagent with Na2S solution (S2– to Me2+ mola ...
Desalination 211 (2007)
by an electrolytic process from synthetic solution prepared to simulate a concentrate waste stream of a micellar-enhanced ultrafiltration process
... and copper (II) concentrations, surfactant to copper (II) molar ratio (S/M), electroplating voltage and time, solution pH, and ionic strength on metal recovery and electrical current efficiency were investigated. Results show that at a fixed S/M ratio of 5, the first-order kinetic constant for C ...
Desalination 169 (2004)
... rinsing water is described including project idea, laboratory tests, pilot plant experiments and finally plant construction. The task is to recover metal and sulphuric acid from rinsing water originating from the electro-zinc coating line at Salzgitter Flachstahl. The developed membrane process... reused as rinsing water. In a laboratory membrane screening, a suitable ceramic UF membrane could be identified for particle separation. Metal recovery can be obtained with a NF membrane. A metal rejection of 99.2% (Zn) and 99.8% (Fe) has been found in the laboratory tests while the rejection o ...
Desalination 224 (2008)