1. Most Discussed
  2. Gainers & Losers
CNN 15.0¢

melb. age article.

  1. sugarbowl

    689 Posts.

    for those who are interested.


    Radioactive water safe for recycling
    Date: 09/02/2003
    Words: 430
    Publication: The Sunday Age
    Section: News
    Page: 8

    A Melbourne company says it has discovered a way to remove uranium from contaminated water without chemicals in a development that could stop millions of litres of water being wasted.
    Cardia Technologies claims the technology could be used by mines in Australia and overseas to make radioactive water safe for recycling at the site or for release into the environment, rather than it being stored in containment ponds.

    The technology has also been hailed as a treatment for blue-green algae, with the potential to rid waterways of the blooms permanently by destroying the bacteria and removing nutrients that feed it.

    The company also anticipates the system will be deployed to help clean up environmental disasters such as oil spills or uranium leaks. It can also be used to remove cyanide and other metals from water supplies.

    Project development manager Brian Grigg, who has been working in Brisbane for months developing the technology for Waterpower - a subsidiary of Cardia Technologies - said the system had implications for the treatment of radioactive water.

    ``At the moment many mining companies are just building larger and larger tailings and storage dams and the water remains untreated," he said. ``This changes everything . . . we can treat their containment ponds and provide a solution directly onsite so they don't have to keep on expanding or building more tailing spots."

    The new technology works by using electric currents sent through metal conductors that convert the uranium to a solid coagulant separated through filters from the water stream. The electrodes release stable atoms into the water that capture and coagulate the toxic atoms producing a low-volume sludge that rapidly settles and is easily filtered.

    While the focus has been on removing the uranium to make the water safe, research will now be concentrated on re-using the uranium that is recovered.

    Mr Grigg said because the technology was portable it could be deployed rapidly to treat water on-site to a standard fit for recycling or release. He said it was cheaper and more efficient than other systems that used vast quantities of chemicals and produced a lot of sludge.

    Mr Grigg said the technology used no chemicals and, in tests, removed more than 99 per cent of uranium from the water. It could treat between five litres and 500 litres of water a minute.

    Cardia Technologies chairman Pat Volpe said the technology had been successfully trialled, with 100 litres of water a minute having been treated. Negotiations were under way with several companies in Australia and Asia, he said.

Before making any financial decisions based on what you read, always consult an advisor or expert.

The HotCopper website is operated by Report Card Pty Ltd. Any information posted on the website has been prepared without taking into account your objectives, financial situation or needs and as such, you should before acting on the information or advice, consider the appropriateness of the information or advice in relation to your objectives, financial situation or needs. Please be aware that any information posted on this site should not be considered to be financial product advice.

From time to time comments aimed at manipulating other investors may appear on these forums. Posters may post overly optimistic or pessimistic comments on particular stocks, in an attempt to influence other investors. It is not possible for management to moderate all posts so some misleading and inaccurate posts may still appear on these forums. If you do have serious concerns with a post or posts you should report a Terms of Use Violation (TOU) on the link above. Unless specifically stated persons posting on this site are NOT investment advisors and do NOT hold the necessary licence, or have any formal training, to give investment advice.


Thank you for visiting HotCopper

We have detected that you are running ad blocking software.

HotCopper relies on revenue generated from advertisers. Kindly disable your ad blocking software to return to the HotCopper website.

I understand, I have disabled my ad blocker. Let me in!

Need help? Click here for support.