tannins – residential well water treatment/iron filters in luxembourg

tannins – residential well water treatment/iron filters in luxembourg
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  • What are tannins in well water?
  • Tannins in well waters form from humic acid, which is one of the major components of humic substances (or Natural Organic Matter (NOM). These are the dark brown constituents of soil organic matter. They can also be found in peat, coal, many upland streams and ocean water.
  • Do you need a tannin filtration system?
  • The benefit of laboratory testing for tannins is that it provides clearer, more accurate results – but it’s also about 2-3 times the price of a DIY tannins test. Once you’ve tested and confirmed that your water contains tannins, it’s up to you whether or not you want to remove them with a tannin filtration system.
  • What is a tannin filter?
  • Tannin filters are often an excellent relatively low-cost technology to use for this type of problem, if the actual cause of the problem (such as sealing off the well from the surface) cannot be achieved. Sometimes tannins are accompanied with iron or manganese.
  • What are the different types of tannin treatment technologies?
  • Common tannin treatment technologies include anion exchange resin, ultrafiltration and, oxidation followed by filtration. Anion exchange uses an organic scavenging anion exchange resin which trade negatively charged ions for tannins in water. If using anion resin, it is important to understand that the resin is also sensitive to hardness.