Economical Iron Removal from Water

We have a deep well with the following water characteristics: Very high turbidity Chloride (as Cl) - 380 ppm Free Ammonia (as NH3) - 2.63 ppm Total Iron (as Fe) - 6.14 ppm Total Manganese (as Mn) - 0.8 ppm Apart from the reverse osmosis (RO) system, what other methods can be used for iron removal? What is the cheapest but efficient method? I need to find an economical way of removing iron and the rest of the unwanted matter.