Ballachulish Water Treatment Works – Granular Activated Carbon

ACWA was awarded a contract for the design, supply, installation and commissioning of the mechanical and electrical equipment associated with a new water treatment works at Ballachulish.

The scope of supply for Ballachulish WTW included sand / anthracite filtration, carbon contactors, limestone contactors, sodium hypochlorite dosing, chlorine monitoring and control equipment, turbidity and flow monitoring and MCC.

The raw water source is from a local river. At times of high flow the raw river water is high in turbidity and solids. Treated water from the WTW is to Scottish Water potable water standards.

The raw water is pumped to two skid mounted fully automatic multimedia filters. The filtered water is transferred to two GAC (granular activated carbon) vessels. The proprietary sodium hypochlorite dosing system unit doses the filtered water and finally the chlorinated, pH corrected water is directed to clear water storage tanks.