|GOLD MINING CASE STUDY
Heap Leach pregnant
solution ponds need to be covered to prevent waterfowl fatalities. The
conventional solution has been netting, which is expensive to maintain,
is regularly damaged by winter storms and fails to camouflage the liquid
surface from the air.
By floating a layer
of Euro-Matic Bird Balls™ on the surface, the liquid is camouflaged and
birds fail to see the ponds. The balls rise and fall with changing liquid
levels and easily accommodate objects such as floating pump barges.
LIQUID LOSS THROUGH EVAPORATION
Water is an expensive
commodity, especially to mine operators who work in mountainous or inaccessible
locations. A single layer of Bird Balls automatically arrange themselves
into a close packed formation over 91% of the surface area, greatly reducing
sunlight penetration and therefore liquid evaporation. The thermal insulating
qualities of Bird Balls also assist in maintaining winter operating temperatures
of the water.
Bird Balls are manufactured
in black UV stabilised HDPE and should provide over 10 years of continuous
service in conventional applications. The balls are also completely reusable,
should another basin require covering when the original location becomes
Bird Balls are an install and forget solution. The balls are simply poured
from their packing onto the liquid surface. Moderate winds and snow, which
damage netting so easily, fail to affect a Bird Ball floating cover.
Euro-Matic has over
30 years experience in manufacturing hollow plastic balls for industrial
applications. The ball weight and diameter of the standard Bird Balls usually gives optimum
performance at moderate wind speeds whilst ensuring the most economical cost
per square foot. A Euro-Matic Bird Ball weighs a nominal 40.0g and is 100mm(4")
in diameter. Approximately 116 balls cover one square metre (10 per sq
ft). Should the surface of the pond be exposed to higher wind speeds, our heavier
120g water filled Bird Balls are recommended.