3.3 Municipal Water Treatment (PAC)

Municipal water treatment plant

In certain regions the treatment of the water intended for potable purposes is not necessary at all times during the year. The presence of taste, odour and toxins is dependent largely on the biological action in areas where lake or reservoir supply is common. It is therefore often more cost effective to use temporary or intermittent dosing of activated carbon into the water only during times when treatment is required.

Bulk PAC fully automated dosing equipment from silos

In these instances, the use of Powdered Activated Carbon (PAC) is preferred, as no costly fixed bed filtration equipment is required. The PAC can be dosed directly to existing flocculent tanks at a prescribed rate to achieve the level of removal of taste, odour and toxins as required. Following dosing of PAC the activated carbon is removed as part of the flocculation process, or subsequently filtered mechanically. The water is then disinfected for supply to the distribution network.

CPL Carbon Link manufactures a range of Powdered Activated Carbon (PAC) products for municipal water treatment.

The key features of these products are;

• Powdered coal and coconut shell activated carbons enable optimum product selection
• Range of activity levels and pore size distributions provide a flexible approach to adsorption
• High density products give maximum volume activity on dosing
• Finely divided particle size produces excellent dispersal characteristics in slurries
• UK Drinking Water Inspectorate (DWI) approved

Typical Product Properties