[Stoves] Char used for cooking

[Nikhil Desai]

Andrew:

Thank you. I got "switched on" to biochar ideas nearly ten years ago,
thanks to Steve Joseph, but had very little idea of its contextual
relevance.

I remember seeing, a year or so later, an "old industrial waste
contaminated land" on Efate (Vanuatu). Since even islands were becoming
attractive for foreign investments in crops (rice, for Chinese investors)
and grass (hay for beef cattle), this "remediation" benefit of biochar
could have helped there.

As also many other similar places in the world.

Again, seems to me "waste management" is a smarter way of looking at
bioenergy potentials.

Nikhil

------------------------------------------------------------------------
Nikhil Desai
(US +1) 202 568 5831
*Skype: nikhildesai888*


On Thu, Sep 21, 2017 at 11:59 AM, Andrew Heggie <aj.heggie at gmail.com> wrote:

> On 21 September 2017 at 15:31, Nikhil Desai <pienergy2008 at gmail.com>
> wrote:
> > Andrew:
> >
> > What "heavy metals" in what kind of biomasses?
>
> Nikhil I was not implying that the biomass had heavy metal but rather
> that biochar was able to adsorb heavy metals and mitigate their
> effect.
>
> From what I remember there was little initial benefit from early
> biochar trials in UK, largely because it was used on good agricultural
> land for trials when it seems best used in more "challenged" soils.
>
> Our Forestry Commission  did a lot of research into re afforesting
> old industrial waste contaminated land, quarries and mining tips. One
> early success of biochar use was in establishing tree growth on old
> mine tailings and it was because it was able to remove certain heavy
> metals (lead and zinc I suspect) from the ground water in the rooting
> zone enough to establish a tree crop where one could not be got going
> before.
>
> I've not been involved with later usage because I was not able to
> secure paid work in the field and had to take a position in a firm
> with little interest in environmental matters, to my chagrin but I'm
> my own boss again now.
>
> Andrew
>
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