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» Enseignes bandeau | Cybel Enseignes Stores – Professionelles et particuliers

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- At pH 7.0, 90% Fe+2 oxidation requires 1 hour at 21°C and 10 hours at 5°C.- At pH 8.0, 90% Fe+2 oxidation happens in 30 seconds.- At pH 6.Zero it requires a hundred hours.- The essential dissolved oxygen concentration is 2 ppm.

Under that ferrous iron oxidation happens very…

A well is not only a source of clean drinking water, but also a complex engineering facility that requires professional maintenance.
Periodic cleaning, repair and maintenance guarantee a long service life of the well and high water quality.

A well is not only a source of clean drinking water, but also a complex engineering facility that requires professional maintenance.

Periodic cleaning, repair and maintenance guarantee a long service life of the well and high water quality.

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A well is not only a source of clean drinking water, but also a complex engineering facility that requires professional maintenance.
Periodic cleaning, repair and maintenance guarantee a long service life of the well and high water quality.

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A well is not only a source of clean drinking water, but also a complex engineering facility that requires professional maintenance.
Periodic cleaning, repair and maintenance guarantee a long service life of the well and high water quality.

A well is not only a source of clean drinking water, but also a complex engineering facility that requires professional maintenance.
Periodic cleaning, repair and maintenance guarantee a long service life of the well and high water quality.