采用反渗透法处理高硫氰酸盐浓度的钢铁制造废水

Álvarez José R, Antón F Enrique, Álvarez-García Sonia, Luque Susana

Department of Chemical and Environmental Engineering, University of Oviedo, 33071 Oviedo, Spain.

Membranes (Basel). 2020 Dec 18;10(12):437. doi: 10.3390/membranes10120437.

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.

评估了反渗透（RO）处理钢铁厂富含硫氰酸铵的焦化废水的可行性。在实验室和现场中试规模下，确定了陶氏FILMTEC SW30膜在合成含硫氰酸盐溶液和实际含硫氰酸盐溶液中的性能。未观察到短期污染，数据符合已知的溶解扩散模型和膜理论。这些模型与非稳态质量平衡一起用于模拟，有助于设计用于硫氰酸盐分离的全规模两级反渗透装置。