Environmentally Safe Techniques In The
Recycling Of Mercury-containing Materials
Author(s)
I. Maslennikova, V. Kovalev, O. Eronko & T. Grishchenko
Abstract
Protection of the environment can be achieved by creating conditions that ensure
the complete absence, or at least minimal content, of hazardous substances in
industrial waste. Therefore, in production processes where the main and/or
additive product is material with mercury content, the prevention of mercury
vapor emissions into the atmosphere is an essential prerequisite for safety and
environmental protection. However, achieving these indispensable safety
conditions requires significant energy input.
Detailed analysis of existing techniques and equipment for mercury extraction
from mercury-containing and mercury-contaminated materials as well as plastics
containing waste showed that all of the proposed methods are energy-intensive
and cannot entirely remove mercury vapor from the emissions.
A new technique of the thermal demercurization of mercury-containing
materials has been offered. The original feature of the proposed technique is the
distillation and condensation of mercury vapor within an inert gas flow
circulating in the closed loop system. The offered technique ensures a substantial
reduction in energy consumption while cooling the mercury vapor for its
condensation and almost entirely eliminates mercury emissions into the
atmosphere.
Keywords: recycling of mercury-containing materials, environmental protection,
energy consumption, thermal demercurization, inert gas flow, closed gas loop
system, closed liquid loop system.
Keywords
recycling of mercury-containing materials, environmental protection,energy consumption, thermal demercurization, inert gas flow, closed gas loopsystem, closed liquid loop system.
Related Book
Other papers in this volume
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