Removal of Lead, Cadmium and Chloride from Drinking Water

Published on by in Technology

Hi Experts,

Kindly advise me on the best method I can use to simultaneously remove Lead, Cadmium and Chlordane from potable water.

The volume of 10000 litres/day. The concentration of Lead, Cadmium and chloride in water is 0.7 mg/l, 0.9 mg/l and 500 mg/l -Cl respectively. 

Thank you for your timely assistance.

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14 Answers

  1. A good option for testing you suggested Sushant Kumar. This is an activated glass filter and an activated carbon filter.
    In this case, you yourself can make activated glass.

  5. Dear Mwaba,

    You can try Activated glass media Filter of Dryden Aqua, UK.   Discuss with them , ask for their help ,send them sample for conducting trial at their lab. If successfully done, you can buy a filter for its 10 years or more life usage without replacement of media. You can go through case studies published on Dryden aqua website for further clarification.

     

    Activated glass media has very high surface area and NSF certified for drinking purpose use. It is a low cost solution without any chemical addition.  Check with them of they could be of help. For further clarification and best output result I insist to add installation of Activated carbon filter.

     

    First take lab trial, If you don't get your problem sorted out with the above mentioned please write to me. I have another solution as well.

    1 Comment

    1. Thank you very much. How cost effective is it? I would like also to know about other alternatives so that I can compared in terms of costs and efficiency.

  6. Filtration with bone char media is effective for lead and cadmium and I have used it on a source originating from some old mine workings. I don't know whether it would be effective with chlordane however That may require an additional step, such as GAC. I don't expect that GAC would get the metals out however.

    1 Comment

    1. Thanks Steve. 

      There is no chlordane in water , and that was just a typing error..I wanted to write chloride. 

      Now, where can I get bonechar? How affordable is it?

      1 Comment reply

      1. This is a UK supplier I am not sure where your application is.   https://www.industrialwaterequipment.co.uk/filter-media/bone-char/

  8. Metsorb ion exchange resin is an option.  We offer cartridges for testing:  http://scindustrialsales.com/metsorb-cartridges

    1 Comment

    1. How durable and cost effective are Metsorb ion exchange resins ?

  9. hello, mr. Mwamba,  I am very surprises why the drinking water resource in including the  Lead  ? because  this kind of water resource  is  prohibited in many countries.  of course,  for lead, cadmium and chlordane,  it can be removed through  the RO system  and colophony filtering system together,   if possible, please kindly let us know more details so that our professional engineer can give you suggestion.

    Answered on by

    2 Comments

    1. It was a typing error because it is supposed to be chloride instead of chlordane

      1 Comment reply

      1. please tell me you water resource analysis details, and your request for the production water .  i will let engineer will help you after  they analyss details data . you can mail me at hardymachine@hotmail.com  or call me at +86-135-858-92533,  +86-158-023-30364.

        Commented on by

    2.  you know removing the  lead, ​cadmium and ​chlordane is just a easy things through the filter system, but, at the same time, we must thinking of your local standard for the drinking water. because if just thinking of removing the lead, ​cadmium and ​chlordane, ​ we can filtering the water resource as the pure-water or distilling water.  for drinking water.  we must thinking of more.

      Commented on by

  10. Hi Mwamba,  I hope you can find an alternative to chlordane soon - it is an insecticide that is  now prohibited in many countries.  Being an organo-chloride complex, you could remove it with activated carbon (either powdered or with a granular activated carbon filter column).  AC can also remove heavy metals - but you need to check with the suppliers if the brand they supply can absorb heavy metals.  Not sure why you want to remove chlorides, you should also let us know what the associated cations are (probably sodium, but could be potassium, calcium or magnesium?).  This may affect your removal options.  Ion exchange can be considered.

    1 Comment

    1. I am sorry, it was a typing error because it is supposed to be chloride instead of chlordan.. Thank you very much

  11. Reverse Osmosis is effective technology. 

    Answered on by

  12. In my SyncXTron model the mix of air cooled and liquid water passing

    into a micron-tube of resonance with the specific radial or free ion it

    activate spontaneously the polarization that combined with MOF's 

    resolve your question selectively with no HRT problems

  14. Dear,

    I had very nice results with the use of a specific zeolite for the removal of the heavy metals, 25,9mg/g  for the cadmium. The chlorine removal can be obtained by adding our EcoClearProx, A 100% biodegradable hydrogen peroxide which is approved for drinking water application for humans. send me your email address to send some info.

    Gino

    2 Comments

    1. Good Afternoon Mr. Musonda,

      You ask to remove lead, cadmium, chloride in your topic...however, you then mention chlordane.  Please clarify and provide a complete water analysis of the source water.

      We are pleased to assist and introduce you to your nearest Authorized Aquathin Dealer.

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