RESEARCH CONCERNING THE PURIFICATION OF THE WASTEWATER RESULTED FROM THE GALVANIC PROCESSES. I. THE RETENTION OF THE Zn IONS RESULTED
HARJA MARIA 1, RUSU LACRAMIOARA 2, BANDRABUR FLORIN 1, HARJA CONSTANTIN 3 1. TECHNICAL UNIVERSITY “GH. ASACHI” OF IAŞI, FACULTY OF CHEMICAL ENGINEERING 2. UNIVERSITY OF BACĂU, FACULTY OF ENGINEERING, 3. TECHNICAL UNIVERSITY “GH. ASACHI” OF IAŞI, FACULTY ELECTRICAL ENGINEERING,
The industrial wastewater is an important source of pollution. Within this category, the water from the galvanic industry is especially important. The purpose of this paper was to monitor the exhaust water from a vapour galvanizing installation, in order to establish the medium values of the zinc ion concentration, to analyze the water after the first stage of chemical treatment and to establish the appropriateness of continuing the retention process of the zinc ions from the chemically treated water. Preliminary tests have been made for the retention of the zinc ions, concerning their retention by using ion changing devices and power plant ashes.
