Turning Contaminated Sites To Gold

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11th December 2008, 04:52pm - Views: 617





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Photographs available upon Request



THE ANSWER TO MELBOURNE’S

CONTAMINATED SITES?



The most technologically advanced soil decontamination project in Australia – and

only the second clean up of its kind in the world - was unveiled at Springvale today.


The unique thermal desorption technology – approved by the EPA - could be used

extensively to clean contaminated chemical, manufacturing and petroleum sites

around Melbourne. 


It could also be a bonanza for the federal and state governments, councils, companies

and authorities managing polluted sites across Australia.


Development of the technology supports the Victorian Government policy to

remediate contaminated soil rather than send it to landfill.


The process is also cheaper and causes minimal disruption to neighbouring properties. 


At a cost of $6 million more than 20,000 tonnes of contaminated soil is being treated

on the eight hectare Princes Highway site of Harvey Norman’s largest home maker

centre in Australia.


The contaminated soil is being cleaned and neutralised by the Australian company

Innova Soil Technology using its Direct Heated, Fast Quenched, Thermal Desorption

(DFTD) process.


The process cleans the soil of hydrocarbon contaminants (Polychlorinated Biphenyl

or PCB) by heating the soil in a rotary dryer to almost 500 degrees until the

contaminants are vaporised and reduced to an “undetectable” level.


The evaporated contaminants are then heated to almost 1000 degrees and converted to

harmless carbon dioxide, water and a small portion of acid gas gas, which is then

neutralised. 


The decontamination has been undertaken on a 24x7 basis cleansing an average of 15

tonnes of soil an hour since the plant was established on site in the mid year.


Media Release

Thursday, December 11


On completion of the decontamination early next year the site will be removed from

the Victorian EPA Priority Site Register enabling the $300 million construction of the

Harvey Norman store to commence.


Mr. Bruce Dawson, EPA executive director regional services said that on-site

treatment means sending less contaminated soil to landfill.

He said independent monitoring conducted throughout the three-month remediation

process verified the removal of contaminants while conforming to all emission limits. 

“Tests so far on more than 250 samples of processed soil report levels of PCB below

the limits of detection”, he said

Dr John Lucas, managing director of Innova, said the company’s equipment was

designed to be moved to locations like Springvale, so remediation could take place on

site.

”The success of the project shows the Innova system could be of benefit to the owners

of many contaminated sites across the state.

“Innova Soil Technology has welcomed the close scrutiny of the EPA and other

Victorian authorities over the Springvale remediation, and we are confident we’ve

demonstrated the effectiveness of the technology and its potential benefit for

Victoria,” he said.

ENDS




For Further information



Clifton Consulting

189 Flinders lane

Melbourne 3000

Tel (03) 9654 3522

Mobile 0402 117 924
















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