SAFE RECYCLING OF SPENT MANGANESE DIOXIDE-ZINC VOLTAIC CELLS

Abstract

Ecological aspects, connected with run-down manganese dioxide-zinc voltaic cells and their impact on
the environment, are considered. General scheme of methodological approach to recycling galvanic cells
scraps is proposed, including the using of information technologies with the substantiation of choosing the
recycling method and analytical techniques, converting process, selecting the utilization method of the components
and their subsequent selling. Non-waste scheme of technological recycling manganese dioxide-zinc
voltaic cells’ scraps has been developed, which successively includes their hydro-mechanical and hydrochemical
recycling following the principles of saving resources and energy. During stage-by-stage recycling
of manganese dioxide-zinc voltaic cells’ scraps, well-known technological methods and available hardware
are applied, which are used in chemical technology and operating on the basis of hydro-mechanical and hydro-
chemical processes. At all stages of recycling scraps of manganese dioxide-zinc voltaic elements, techno-
chemical control is conducted together with processing the obtained data using software. As a result of
recycling manganese dioxide-zinc voltaic cells’ scraps according to the proposed technological scheme,
graphite, ammonium chlorine zincate, zinc complex, and manganese dioxide are obtained. Safe utilization of
manganese dioxide-zinc voltaic elements’ scraps according to the developed hardware and technological
scheme assumes the returning of metallic and soft parts to production and consumption spheres. The proposed
scheme is non-waste, environmentally safe, following ecological standards for the natural environment
of the region. The scheme’s development is an important stage for industrial object design.