Sagajdak I. Localisation and decontamination of waste waters contaminated by ions of chrome, cadmium and zinc.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0400U003269

Thesis Registration Form

0400U003269.pdf

Applicant for

Specialization

  • 21.06.01 - Екологічна безпека

20-11-2000

Specialized Academic Board

Д 26.002.05

Publishing and Printing Institute of Igor Sikorsky Kyiv Polytechnic Institute

Essay

Comparative efficiency study of the processes of chromates desorption from high- and low-basicity ionites on application of ammonium, alkalic and combined regeneration solutions, including determination of conditions for valuable components recovery, is carried out. Reduction processes of chromates in two-phase systems with application of organic reducing agents in an acid medium are studied. Conditions of cadmium and zinc ions desorption from KU-2-8 cation-exchange resin on using acid and ammonium sulphate solutions, which make possible reuse of regeneration solutions and electrolytic metal separation, are determined.

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