CASE STUDY: AKA-SILT

CASE STUDY: AKA-SILT

– ULTRA FINE SAND RECOVERY SYSTEM –

SITUATION

One of our European customers is a leading regional player in the production of sand and gravel for the construction and public works markets (buildings, roads, ready-mixed concrete, …).

CHALLENGE

As a result of old technology and unappropriate hydrocycloning solution, the customer is rejecting a significant amount of product in the range 0-150 µm. Customer target was to develop a solution capable of (1) maximizing the recovery of fine sand currently lost in the 0-150 µm fraction, (2) hence reduce the load on his sludge sedimentation pond.

SOLUTION

Sample analysis at AKW Equipment + Process Design laboratory to define the most suitable cut point allowing the best sand recovery yield (target = minimum 50% wt).Followed by the development of a unique and customized technology solution, combining the science of ultra fine hydrocycloning classification with dewatering of critical sand material.Resulting in the recovery of a 10-150 µm sand fraction, properly dewatered, generating a significant reduction of the total amount of sludge disposed in the sedimentation pond. Additionally, analysis of the clay disposed in the pond showed outstanding purity level, allowing its use in specific applications.

    • The AKA-SILT solution allows to reach the highest environmental standards: 100% chemical free process and up to 98% of total material usage balance.
  • The AKA-SILT can be installed as additional unit in existing plants.

With the AKA-SILT system you benefit from an  environmental friendly add-up, that can process your fine material which normally is

  • discharged in ponds
  • unsaleable
  • polluting the recycled water
  • containing valuable fine sand

PROCESS FLOW

 

OUTPUT MATERIALS

ULTRA FINE SAND 10-150 µm
used as additive to concrete sand or mortar

PURE CLAY 0-10 µm
used as sealing additive

 

IMPRESSION

The first of its kind, for unparalleled results!

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