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Homework Help: Break down CaCO3 into its constituents

  1. Feb 27, 2008 #1
    1. The problem statement, all variables and given/known data

    in order for a well to supply 4.5 million litres of drinking water per day, at a minimum total hardness of 60mg l-1 as Ca, calculate the daily throughput of the reverse osmosis plant assuming that 30% of the feed to the plant comes out as reject.

    2. Relevant equations

    a table provides the following info:
    total hardness (as mgl-1 CaCO3) at feed is 660 but at permeate it is 4

    3. The attempt at a solution

    i suspect i must break down CaCO3 into its constituents however i cant remember how to do this. Iwould be very grateful for a pointer in the right direction.
  2. jcsd
  3. Feb 27, 2008 #2
    guys im only a newbie to both the sciences and this great website, im not looking for an exact answer but just a clue of how to tackle this question. if any further questions is needed please reply, i really am going off my head trying to get over this mental block im having.
  4. Feb 27, 2008 #3
    Perhaps you should post this under the "Other Sciences" sub-forum, also under Homework & Coursework Questions
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