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Vetiver System for Landfill Leachate Seepage Control in Australia Dr. Paul Truong Veticon Consulting P/L www.veticon.com.au Brisbane, Australia All materials.

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Presentation on theme: "Vetiver System for Landfill Leachate Seepage Control in Australia Dr. Paul Truong Veticon Consulting P/L www.veticon.com.au Brisbane, Australia All materials."— Presentation transcript:

1 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

2 Brisbane: Leachate after rain on the side slope of an old landfill at Judy Holt Park, Wellington Point, Redland Shire

3 This leachate runoff is highly contaminated with Chromium, Cadmium, Copper, Lead and Zinc. It will eventually run into a nearby creek

4 Another seepage at the same landfill, this leachate was running into a drain

5 Top view of the vetiver planting at the outlet of the leachate

6 A thick stand of vetiver was planted at the outlet of the leachate seepage

7 Three months after planting, good growth, no adverse effects

8 Ten months after planting, leachate volume was significantly reduced

9 Twelve months after planting, excellent growth, unaffected by heavy metals contamination in the leachate.

10 Within a year vetiver has completely stopped the leachate seepage

11 Armidale: Vetiver planted to control landfill seepage. Note the leachate on the drain when native grass was used.

12 Leachate runoff from the landfill mound under native vegetation

13 Replacing native grass with Vetiver to control landfill seepage.

14 Luxurious growth, no toxic effects, six months after planting.

15 Seven months after planting, note the leachate pool has mostly dried up

16 One year after planting, the leachate pool was completely dried up.

17 Port Douglas: Bands of vetiver planted to control leachate at Port Douglas Landfill

18 Looking down from the top of the dump Vetiver

19 Occasional mowing to encourage new growth and remove nutrients THANK YOU


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