EUTECH INSTRUMENTS ION 700 - REV 3 Bedienerhandbuch PDF herunterladen (Seite 28)

22

Some pollutants such as acid mine drainage produce direct chemical

demands on oxygen in the water. DO is consumed in the oxidation-

reduction reactions of introduced chemical compounds such as nitrate

(NO

3

1-

) and ammonia (NH

4

1+

), sulfate (SO

4

2-

), and sulfite (SO

3

2-

) and

ferrous (Fe

2

+

) and ferric (Fe

3

+

) ions.

These are important consideration for water and wastewater treatment

industry.

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