EXPERIMENTAL AND THEORETICAL-STUDIES ON A NEW TYPE OF ELECTROCHEMICAL REACTOR FOR WASTE-WATER TREATMENT

In this paper results of experimental investigations and the problems of mathematical modelling for a new electrolytic cell-a drum construction with a vertically moving particle bed electrode-are presented. Advantages of the so-called VMPB reactor, compared with other existing cells, are reported. The new cell is used for the deposition of one or several metals from diluted solutions and can be an alternative to conventional electrochemical reactors for waste-water treatment, especially in the pollutant concentration range from 0.1 ppm to 20 g of metal per litre. Using a complex non-isothermal reactor model, including balances of mass, heat and electrical flow, mass transfer coefficients are calculated and scale-up tasks realized.