HOME >> BIOLOGY >> NEWS
Global aluminium waste headache solved

An Australian research team has solved one of the world's big industrial waste headaches - what to do with spent pot lining (SPL) from aluminium smelters.

In a major advance for sustainable mineral production, the "Alcoa Portland SPL Process" developed jointly by Portland Aluminium, Alcoa, Ausmelt and CSIRO renders the hazardous waste harmless and at the same time produces two commercial by-products.

Aluminium smelters worldwide produce about half a million tones a year of the toxic byproduct which, in many cases, simply has to be stored on site because local regulations prevent its disposal in landfill.

Now the Australian breakthrough has turned what was an intractable problem into economically useful products.

Aluminium fluoride produced by the process will directly replace a portion of the expensive imported aluminium fluoride used in the smelting process - significantly reducing purchase costs for this material.

Another product, "synthetic sand", has received Environment Protection Authority approval for unrestricted use and is expected to be used road-making and concrete production.

SPL project manager, Mr Ken Mansfield, says the company is delighted with the outcome.

"Treating SPL is a costly process, but achieving such an environmental breakthrough, where the by-products partially offset the processing costs, is an outstanding result."

Mr Mansfield said Portland Aluminium had 75,000 tonnes of SPL stored safely in secure containers and specially ventilated buildings. "But we couldn't go on storing it for ever, so in 1989 we started seeking suitable treatment options. That was when we approached CSIRO, to comb the world for a process that would meet our environmental, technical and economic goals".

"When it became clear there wasn't anything suitable worldwide, we began our own joint research, which led in 1992 to our trialling the Ausmelt technology."

Ausmelt Limited was establis
'"/>

Contact: Rosie Schmedding
Rosie.Schmedding@csiro.au
61-2-6276-6520
CSIRO Australia
31-May-2002


Page: 1 2

Related biology news :

1. Global competition closes Texas sawmills/paper mills
2. Global warming and the onward march of the pine
3. Global warming to squeeze western mountains dry by 2050
4. Global warming may cause songbirds to avoid certain foods
5. Global wetlands surveyed from space
6. Fourteen Grand Challenges in Global Health announced
7. Global analysis finds a large portion of the earth is still wilderness
8. Global garden grows greener
9. Jane Goodall to receive 2003 Global Environmental Citizen Award
10. Global analysis finds nearly half the Earth is still wilderness
11. Global warming has uneven effect on coastal animals

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/7/2020)... LOUISVILLE, Ky. (PRWEB) , ... August 06, 2020 ... ... been selected to participate in the prestigious National STEM Scholar Program, a unique ... national network building, and project support for middle school science teachers nationwide. , ...
(Date:7/31/2020)... ... July 30, 2020 , ... BioFactura, Inc. today announced ... the Joint Science & Technology Office—Chemical and Biological Defense (JSTO-CBD) of the Department ... scale-up a highly efficient mammalian cell culture-based bioprocess suitable to meet surge requirement ...
(Date:7/18/2020)... ... July 16, 2020 , ... A ... of the Invictus Medical Neoasis™ active noise control device to attenuate typical noises ... the Neoasis™ device attenuated the alarm sounds from patient monitors, ventilators and other ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... SHREWSBURY, Mass. (PRWEB) , ... July 29, 2020 ... ... clad wire that can combine up to three different materials for use with ... can combine up to three materials to meet specific design requirements, performance, and ...
(Date:7/22/2020)... ... 2020 , ... Join experts from Reed Tech , Gary Saner, Sr. ... one hour live webinar on Thursday, August 13, 2020 at 11am EDT ... medical devices. Specifically, for medical devices, the NMPA has departments dealing with medical device ...
(Date:7/10/2020)... LORTON, Va. (PRWEB) , ... July 08, 2020 ... ... laboratory testing services and products, announces a significant expansion of laboratory operations through ... robust collection for agencies implementing testing programs. , Bode-CARES provides ...
(Date:7/7/2020)... BOSTON (PRWEB) , ... July 06, 2020 , ... ... Innovative Practices Awards. Entries from Roche, Eli Lilly, Bristol-Myers Squibb, the University of ... Since 2003, Bio-IT World has hosted an elite awards program, highlighting outstanding examples ...
Breaking Biology Technology:
Cached News: