Recycling ferrous sulfate via super-oxidant synthesis

Hydrated ferrous sulfate, a by-product of the titanium-dioxide and steel-su rface-treatment industries, is usually disposed of as waste at a significan t extra cost for these industries. Due to tight environmental regulations i n the European countries, waste disposal of ferrous sulfate will not be an acceptable solution in the near future. Consequently, the waste will have t o be treated. Recently, ferrous sulfate was successfully used to synthesize a novel superoxidant material (potassium ferrate) containing iron in hexav alent state (Fev(VI)). With ferrates synthesis, innovative applications are possible in different industrial sectors, such as treatment of water and w astewater and effluent decontamination.