BAG TYPE SLUDGE DEWATERING

Bag type sludge dewatering is a simple, economical, and space-saving method used in wastewater treatment plants to separate water from sludge. It is especially preferred in low-capacity facilities or temporary solutions.

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How the System Works

  • Polymer dosing (flocculant) is performed:
    A chemical (usually polyelectrolyte) is added to the sludge to form flocs
  • Sludge is transferred into the bag filter:
    The prepared sludge is transferred into specially designed filter bags
  • Gravity filtration:
    Due to the porous structure of the bag, water seeps out while solids remain inside. Once full, the bags are disposed of with their contents
    Advantages
  • Low investment and operating cost
  • No energy requirement (works via gravity)
  • Easy installation and operation
  • Suitable for small spaces
  • Ideal for portable and temporary applications

    Disadvantages

  • Long drying time (especially in winter)
  • Not suitable for large plants
  • Not suitable for continuous processes
  • Lower dry solid content compared to mechanical systems

    Applications

  • Small-scale treatment plants
  • Temporary solutions in industrial facilities
  • Packaged wastewater treatment plants
  • Sites requiring temporary sludge storage
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