The filtration spectrum

The table gives a broad indication of which technology might be applied to solve specific client water treatment requirements. ACWA covers the whole filtration spectrum and its associated technologies.

In almost all cases, it will be necessary to combine two or more technologies in order to achieve the required results economically - many examples are provided in the case studies. Every project is studied thoroughly to balance capital and running costs to achieve optimum whole-life cost.

The client's final water quality requirement will determine the 'PRIME TECHNOLOGY' selection. The raw water quality and project economics will determine the 'PRE-TREATMENT TECHNOLOGY' selection required.

For example, every Reverse Osmosis plant has a minimum pretreatment of 5-micron cartridge filtration and in many cases, pressurised sand filtration would be used to pretreat the cartridge filter in order to minimise running costs.