Des & Jan Howard on fri 14 dec 01
Ivor
I've been out of town, so, I'm playing catchup.
Could you please enlarge on your comments
re contraindications in the use of sump/drain oil.
Des
iandol wrote:
> Costless as Drain Oil is, and fascinating as the results it gives may be,
> discarded sump oil is an environmental hazard when fired in a potter's kiln. A
> kiln fired with this fuel will discharge a plume of heavy metal residues and
> spew it over the surrounding countryside. It is also feasible, though I have
> no valid evidence other than the word of the manager of the toxic collection
> unit in our State, that at low kiln (KilN, did you hear that! ! !. From the
> French speakers I think you will hear Kil) and flame temperatures its effluent
> may contain Dioxins.
--
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Ph/Fax 02 6373 6419
http://www.luepottery.hwy.com.au
iandol on sat 15 dec 01
Dear Des,
I was having a chat with the local poisons collection boss when they =
came to the Redhill recently as I had noticed that there is an Adelaide =
Co. collecting Sump oil from service stations for reclamation and =
recycling. I was considering supplementing Diesel with sump oil to =
reduce the cost. He told me that tho be certain there was no pollution =
the flame temperature had to be maintained well above 2000 Celsius to =
eliminate Dioxins. I already knew about the potential of clay collecting =
metallics from the oil from previous experience. Lithium and Zinc are =
involved but there are also residues of bearing metals. So Cadmium and =
Antimony may be involved.
Since it seems a bit dodgy I would not be willing to use it again.
Hope that is satisfactory.
Best regards,
Ivor.
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