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Vetiver System for Landfill Leachate Seepage Control in Australia Dr. Paul Truong Veticon Consulting P/L Brisbane, Australia All materials in this document remain the property of Veticon Consulting Pty Ltd. Permission must be obtained for their use. Copyright © 2013
Brisbane: Leachate after rain on the side slope of an old landfill at Judy Holt Park, Wellington Point, Redland Shire
This leachate runoff is highly contaminated with Chromium, Cadmium, Copper, Lead and Zinc. It will eventually run into a nearby creek
Another seepage at the same landfill, this leachate was running into a drain
Top view of the vetiver planting at the outlet of the leachate
A thick stand of vetiver was planted at the outlet of the leachate seepage
Three months after planting, good growth, no adverse effects
Ten months after planting, leachate volume was significantly reduced
Twelve months after planting, excellent growth, unaffected by heavy metals contamination in the leachate.
Within a year vetiver has completely stopped the leachate seepage
Armidale: Vetiver planted to control landfill seepage. Note the leachate on the drain when native grass was used.
Leachate runoff from the landfill mound under native vegetation
Replacing native grass with Vetiver to control landfill seepage.
Luxurious growth, no toxic effects, six months after planting.
Seven months after planting, note the leachate pool has mostly dried up
One year after planting, the leachate pool was completely dried up.
Port Douglas: Bands of vetiver planted to control leachate at Port Douglas Landfill
Looking down from the top of the dump Vetiver
Occasional mowing to encourage new growth and remove nutrients THANK YOU
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