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CONTROL
OF
POLLUTION
FROM
FLY-ASH |
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Where applicable
Fly-ash dumps in Power plants pollute its
surrounding areas by rain and wind particularly in the summer,
when spraying water to stabilize the cohesion less powder fails to stop
pollution. However a low cost cover may stop erosion by rain and wind as
well as vertical and horizontal failures of the huge dumps of
considerable height. A low cost jute fabric with 100 % coverage may be
used to stop pollution of the material by rain and wind and gradually
stabilize the material with time.
Why applied
The powdery material is blown by wind to distant
places making the surrounding areas black and dusty even the agriculture
is not spared from the pollution. During rainy season rain water
transports the powdery material from the dump to low lying areas as well
as agricultural field and creates a layer of fly-ash on the field
reducing yield of crop. Application of jute geotextiles is a low cost
measure to stop pollution caused by fly-ash.
Material specification
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Code |
Weight
(gsm) |
Width
(cm) |
Thickness
(mm) |
Strength
(kN/m) |
Elongation
at break (%) |
Coverage
(%) |
| MD |
CD |
MD |
CD |
|
BGN 500 |
500 |
150
(max) |
4 |
4 |
5 |
20 |
25 |
100 |
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Packing – Rolls of suitable length subject
to maximum 600 m.
How to apply
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| 1. |
Roll down the fabrics with over lapping at
sides and ends in the way shown in the plan below. |
| 2. |
Staple the overlappings at intervals with suitable iron or wooden pegs as shown in
the plan. |
| 3. |
For use of the material, a portion
of the fabric with pegs may be removed and covered again.
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Plan of Installation of
Non woven
Geotextiles for Fly Ash stabilisation |
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