Water treatment for perfect drinking water in Madeira: Table water à la carte
One company in Madeira makes table water from the island’s springs and wells. Despite the fact that the natural nitrate content is too high, the finished product is high-quality drinking water – thanks to water treatment from ProMaqua.
The Portuguese island of Madeira produces a very special kind of table water. The water supplies used by manufacturer Empresa Cervejas da Madeira contain high levels of harmful nitrates, yet the beverage makes excellent drinking water. The secret? Water treatment.
Water treatment for perfect drinking water
ProMaqua built a complete water treatment plant on the sunny island in the Atlantic in just five months. The plant produces ten cubic metres of high-quality drinking water every hour. “The spring and well water containing nitrates is softened, filtered, and then desalinated by reverse osmosis,” explains Oliver Hentschel, sales manager for international drinking water projects at ProMaqua.
To ensure maximum quality the water is then disinfected with ozone. This is a popular choice of disinfectant in water treatment as it breaks down into oxygen, leaving no by-products. “This means it does not impair the quality of the water,” says Hentschel.
Self-monitoring system
Any defects in the water quality are detected by the water treatment plant’s own measuring and control systems, which regularly measure water hardness, ozone levels and redox content. “This makes the operator’s job easy because the plant monitors itself,” explains Hentschel.
Components of solutions:
2 x circulation pumps
1 x duplex water softener
1 x hardness measuring and control unit
1 x 20” pre-filter
1 x reverse osmosis unit PRO 10.6.8040 ESPA1
1 x ozone generator OZVa 4 40 g/h with ozone sensor, LITCOR O3 air vent, bleed valve and compressor
1 x measuring and control unit D1C (ozone and redox)
