16
MINING FOR CLOSURE
document, must still be keep in mind. Moreover,
many mines have been operational for long periods
of time and as van Zyl et al underline (2002a), while
mines in planning stage have maximum freedom
to address sustainable development goals during
closure and while those that are in the middle of
their operating life have significant opportunities to
do so, operating mines that are close to the end of
their economic life have limited options available.
As such, there appears to be a broad consensus
among actors responsible for governance of mining,
NGOs with interest in mining, academics study-
ing mining, senior financial institutions financing
mining projects, and a body of leading miners, that
planning for closure should ideally start during the
pre-feasibility stage of a mining project. Further,
these actors hold that it is clear that successful mine
planning for closure avoids or minimises potentially
adverse environmental and social impacts over the
life of the mine and into the future by carefully con-
sidering the layout and design of the various compo-
nents of a mine. Similarly there is broad consensus
that a thorough understanding of site specifics, not
least the geochemistry of materials present on sites
(particularly mine wastes) is critical to success. Fur-
ther, there is agreement that the process of operat-
ing and closing mines must integrate community
expectations and concerns, governmental require-
ments, and profitability of the mining project, while
also minimising environmental impacts.
Within this document, and within the bounds de-
fined earlier in this section, it is also held that all
this needs to be achieved so that
future
public health
and safety are not compromised; environmental re-
sources are not subject to (abnormal) physical and
chemical deterioration in the
long term
; and that the
after-use of the site is beneficial and sustainable in
the
long term
.
It should be noted that in many countries, plan-
ning for closure or
Mining for Closure
, as we shall
call it, is a relatively new concept. Further, rapidly
changing economic conditions, particularly in
economies in transition such as those in SEE/TRB,
have led to mine closures (and/or “mothballing”)
in the absence of adequate planning (Smith & Un-
derwood, 2000).
The challenge for such countries is added to by
the fact that, while the broad consensus outlined
above exists, there is not yet “agreement” among
all
actors upon what it is that actually constitutes
mine closure
or
integrated mining approaches
. This
is especially true in developing economies and
in economies in transition. By working on these
challenges together, all stakeholders can seek to
address the adverse legacy problems and prevent
them in the future. With careful planning, a mine
can become an engine for sustainable economic
development beyond its own life (Post Mining Al-
liance, 2005).
Tailings dam failure – Los Frailes, Spain
Unknown photographer