Re: Lem. Ger. to clean toxic soils

Jim Draper (draperj@peak.org)
Sun, 01 Aug 1999 08:12:24 -0700

On reading about the use of specially-scented geraniums for ridding soil
of contamination, my reaction was about like that of Dan Hook: what happens
to the contamination? Where do you put the now-contaminated geranium plant
residue (including roots)? It's something like the guy who excavated a hole
for putting a swimming pool in his yard and then wondered what in hell he
was going to do with the dirt --- dig another hole to put it in, and then
on and on and on?

At 08:56 AM 7/31/99 -0400, Dan Hook wrote:
>Interesting. Not allowing anyone to plant normal ordinary scented geraniums
>that I wouldn't approve of. Question after these geraniums do their job I
>don't supposed they can be thrown on the compost piles? :) Beth
>
> "Anyone who went out to use these geraniums for phytoremediation would
>>have to come and talk to us [if the patent is granted]," Dr. De Grandis
>>said, adding that anyone who didn't could face legal action.
>>
>> After planting the scented geraniums in contaminated soil samples from
>>an undisclosed site in Canada and conducting a similar trial at a
>>contaminated Hamilton location, the researchers found that the plants
>>cleaned up toxic soil and flourished in it.
>>
>> "With other methods to get rid of toxic metals in the soil, the soil
>>is left clean, but it's useless," Dr. Saxena said. But by planting
>>lemon-scented geraniums to clean the soil, the same land could later be
>>used for farming, he added.
>>
>>
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