What does water color mean in practice?
The color is assessed visually or instrumentally, distinguishing the effect of dissolved substances from suspensions that increase the apparent color.
When does it matter?
The yellow or brown tint may be due to iron, humus or corrosion, so the color itself does not indicate the technology.
Which solutions are related to it?
True color and turbidity are determined, and iron, manganese and organic matter are tested before process selection.