Armcon Ltd have pioneered a Sludge Processing Unit to eliminate the sludge to landfill problem. The uniquely designed mixer unit processes dewatered sludge with powders. This process changes the molecular properties of the material from a plastic state to a non plastic state which quite simply means that it will not revert back to its wet sludge form. This will allow the processed material to be used in a manner of different applications as a valuable aggregate for resale rather than a material which costs to handle or dispose of.

Processed materials can be used

  • Blended with 6F2
  • Blended with Type 1
  • As a road base
  • As hardcore
  • As pipe bedding

When the sludge material is processed using the ASP-6 , the platelets go through an ion exchange process, causing a change in the way the platelets align, as shown in the pictures below. This gives an increase in material strength and will normally occur quite rapidly – the strength gain can continue for over 10 years.

Particles aligned and surrounded by water allowing them to slide easily, which results in a low strength.
Particles aligned and surrounded by water allowing them to slide easily, which results in a low strength.
Particles after processing, showing reduced water layer and realignment, which significantly increases strength.
Particles after processing, showing reduced water layer and realignment, which significantly increases strength.