HALT System

Key benefits

Efficiently grinds low-cost limestone aggregate into slurry allowing rapid dissolution.
Can replace anoxic limestone drains.
Long term treatment solutions using limestone = long term cost and resource savings.

General Description

The HALT Water Treatment System is a limestone aggregate(e.g.<40mm) grinding system that is currently undergoing commercialisation. Field trials consistently produced a fine grained (<500 micron) limestone slurry which is an effective means for treating acid water. This system has a small site footprint and low physical impact when deployed. It requires minimal existing infrastructure and can be readily powered by water turbine.

This semi-passive water powered system has the potential to replace the often problematic anoxic limestone drains as a long term solution to many acid drainage problems. The HALT Water Treatment System has the advantage of utilising the more ecologically benign effects of limestone as a treatment reagent in environmentally sensitive areas. Using limestone aggregate also significantly reduces the reagent costs of water treatment where long term treatment is required.

The HALT System (Model 0710/1515) shown here is dispensing a limestone slurry into an acidic stream at an old abandoned mineral field.

Model 0710/1515 - Land based.

Primary Applications
Acid neutralisation, pH control, toxic metal reduction.

Secondary Applications
Acid neutralisation, pH correction, toxic metal reduction, lowering total dissolved solids.

Specifications