water treatment the calcium-carbonate balance degremont at thailand

water treatment the calcium-carbonate balance degremont at thailand
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  • Can calcium carbonate be used for water remineralization?
  • Added to this, calcium carbonate used for water remineralization can be very pure, with an insoluble content as little as 0.1%. This further reduces operating costs, with more available product for use and less produced waste which requires further handling and disposal.
  • What is carbonate calcium potential precipitation (CCPP)?
  • Carbonate calcium potential precipitation (CCPP) is an interesting parameter for quantifying what may be scale-forming or may have dissolving properties (pipes made from concrete) knowing that the CCPP is a level of concentration expressed in CaCO 3 (positive if water can cause scaling or negative if water is aggressive). Figure 99.
  • Why is calcium carbonate a quantitative measure of water dissolved or precipitated?
  • It provides a quantitative measure of the total amount of calcium carbonate that the water will either dissolve or precipitate giving an accurate guide not only to the nature of the water, but the extent to which it is under saturated with respective to calcium carbonate or over-saturated.
  • Why is calcium carbonate a key indicator of water stability?
  • This is due to the fact that 1) the dissolution or precipitation potential of the water with respect to calcium carbonate is often used as the key indicator to the stability of water; and 2) the alkalinity, calcium content and pH are the three major contributing factors in determining dissolution or precipitation potential of the water.