Tailings Liquor Treatment Plant Debottlenecking Study

Solution Provided | Completed a multi-disciplinary debottlenecking study and provided plant improvement recommendations.

Disciplines | Process, Mechanical, Electrical, and Structural Engineering

Carnac undertook a debottlenecking study and provided plant improvement recommendations for an existing Tailings Liquor Treatment Plant at an Alumina Refinery.

Carnac carried out the following:

  • Determined the maximum potential flow capacity for each plant area;

  • Reviewed tailings liquor supply pipeline design via Fluid Flow 3 modelling;

  • Provided recommendations for capital works to help achieve the required tailings treatment rate;

  • Conducted a risk versus cost benefit trade-off investigation to determine the preferred method of ensuring long-term availability of water supply for tailings liquor treatment; and

  • Further defined the go-forward capital works recommendations by providing high-level drawings, schedules, Scopes of Work, and Order of Magnitude (OoM) capital cost estimates (-20/+35%).

Carnac determined the Maximum Technical Capability (MTC) of each plant area in terms of the tailings liquor treatment rate to identify plant areas requiring immediate upgrades. Carnac then provided cost-effective solutions that would allow the tailings to be treated above the minimum required flow rate whilst ensuring a safer, simpler, and more reliable operation.