Water Treatment
Does Borehole Water Need Reverse Osmosis?
Reverse osmosis is useful for particular water-quality problems, but it is not automatically the correct treatment for every borehole.
Start with laboratory analysis
A laboratory report can identify dissolved salts, hardness, iron, manganese, microbiological contamination and other parameters that determine the appropriate treatment process.
Some problems need simpler treatment
Sediment may require filtration, hardness may require softening, iron may require oxidation and filtration, while microbiological contamination may require suitable disinfection.
Adding RO where it is unnecessary increases equipment cost, maintenance requirements and reject-water production.
RO must also be sized for water demand
Where reverse osmosis is justified, production capacity should be based on the amount of treated water required, raw-water quality, recovery rate, pre-treatment and storage requirements.
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