Hi Amama. It is important to ...

Hi Amama. It is important to the flow of treatment to assess the scale factor of the process to apply, but you should also consider the treatment of rejections concentrates, especially iron and manganese. If we do not consider reverse osmosis, it is not easy to remove the three contaminants at one stage.
For nitrates the ion exchange works very well, completing with coagulation filtration, but there are also some adsorption resins that work very well with iron - manganese removal as is Katalox - Light. Today, in addition to a strong evolution of biological processes of iron - manganese removal and others like arsenic (see Degremont leaflets). There are many variables to consider in choosing the right combination for the removal of these contaminants.