Treatment of aqueous effluents from steel manufacturing with high thiocyanate concentration by reverse osmosis

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Abstract

The feasibility of reverse osmosis (RO) for treating coking wastewaters from a steel manufacturing plant, rich in ammonium thiocyanate was assessed. DOW FILMTEC™ SW30 membrane performance with synthetic and real thiocyanate-containing solutions was established at the laboratory and (onsite) pilot plant scale. No short-term fouling was observed, and the data followed the known solution-diffusion model and the film theory. Those models, together with non-steady state mass balances, were used in simulations that aided to design a full scale two-stage RO plant for thiocyanate separation.

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Álvarez, J. R., Antón, F. E., Álvarez-García, S., & Luque, S. (2020). Treatment of aqueous effluents from steel manufacturing with high thiocyanate concentration by reverse osmosis. Membranes, 10(12), 1–14. https://doi.org/10.3390/membranes10120437

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