The most serious health and environmental problems associated with wastewater from the steel industry originate from high concentrations of metals such as chromium and nickel. Iron exists naturally in water and has a low toxicity. Nitrate has instead gained more attention because it causes indirect effects on the environment. The rinsing water from the above types is highly acidic; therefore, none of them can be discharged directly into the environment.
Turbevap evaporator is an excellent treatment system in these cases. Pickling wastewater will be treated by evaporation method. The vapors will be condensed and distilled, while concentrated residues such as metal compounds and toxic acids will be deposited. The vapor after being extracted and condensed will return as pure water and can be safely discharged into the environment, as well as reused for production processes.