METHOD FOR ACIDIC WASTEN IN IRON INDUSTRY

摘要

A method for pickling solution treatment in steel industry is provided to process contaminants with minimum cost and a minimum required area in a low concentration pickling solution process, and to minimize secondary contaminants. A method for pickling solution treatment in steel industry includes a high concentration pickling solution process(S100), a first fluorine removal process(S200), a denitrification process(S300), a second fluorine removal process(S400), a sludge process(S500), and a residual solid removal and effluent process(S600). The high concentration pickling solution process is performed to separate a low concentration pickling solution and sludge from a high concentration pickling solution. The denitrification process and the second fluorine removal process are successively performed after the first fluorine removal process.