OpenLegislation

Division 67

United Kingdom

Original text. Later amendments are not shown.

BAT for treating waste water from blast furnace gas treatment is to use flocculation (coagulation) and sedimentation and the reduction of easily released cyanide, if necessary.

The BAT-associated emission levels, based on a qualified random sample or a 24-hour composite sample, are:

— suspended solids

  • < 30 mg/l

    • — iron

  • < 5 mg/l

    • — lead

  • < 0,5 mg/l

    • — zinc

  • < 2 mg/l

    • — cyanide (CN-), easily releasedf1

  • < 0,4 mg/l.

    • Annotations

    Footnotes

    f1

    This level is based on the use of the DIN 38405 D 13-2 or any other national or international standard that ensures the provision of data of an equivalent scientific quality.