Question

Chemical doses being added to control iron and/or manganese are inadequate if

a) pH is too high
b) Flow rate is too low
c) Concentrations are high
d) Turbidity is low

Answer 1

Chemical doses being added to control iron and/or manganese are inadequate if the pH is too high, flow rate is too low, concentrations are high, or turbidity is low.

Step-by-step explanation:

Chemical doses being added to control iron and/or manganese are inadequate if:

1. pH is too high: The pH of the solution affects the solubility of iron and manganese compounds. If the pH is too high, these compounds will remain soluble and not be effectively controlled.
2. Flow rate is too low: If the flow rate of the solution is too low, the chemical doses may not be properly distributed and mixed, resulting in inadequate control of iron and manganese.
3. Concentrations are high: If the concentrations of iron and manganese are already high in the water, the chemical doses may not be sufficient to effectively reduce them to desired levels.
4. Turbidity is low: Turbidity refers to the cloudiness or clarity of water. If the water has low turbidity, it means that there are fewer particles and impurities present. In this case, the chemical doses for controlling iron and manganese may not be necessary.