Laserfiche WebLink
Cyanide Treatment (T22, § 67450.11 (d)(2D <br /> F Spent Solutions managed in� <br /> accordance with the requirements \I Electrowinning (only for To the aqueous solution <br /> of§ 67450.11(d)(6). j metal recovery) in wastCe sDtreoa E A, B, PBR <br /> T22, § 67450.11 (d)(2)(F) <br /> Spent Solutions managed in Resulting solution must be <br /> accordance with the requirements Slow Bleeding to the treated b ti <br /> aqueous solution in oxidation, <br /> of§ 67450.11(d)(7). ► alkaline chlorination, PBR <br /> T22, § 67450.11 (d)(2)(G) waste streams(A) and (C) electrochemical oxidation, <br /> / <br /> ion-exchange, or <br /> reverse osmosis <br /> Additional Requirements for Dilution of Process Solutions: <br /> • Total cyanide concentration limited to 5,000 mg/I after dilution <br /> • Written approval from the agency operating the POTW <br /> • Waste analysis plan (cyanides) <br /> • The residual solids removed are recycled by a facility that recovers metals including documentation <br /> • By January 30 - Prepare justification statement when residuals are not recycled for the previous calendar year <br /> • Records maintained at the facility for 3 years <br /> For all Cyanide Treatments under PBR: <br /> -Comply with Best Management Requirements <br /> -Employee training (Initial and annual training to employees, who handle cyanide process <br /> solutions, cyanide rinse waters, or manage cyanide waste) DTSC 10/30/17 Page 25 <br /> -Evaluate cyanide alternatives every 4 years <br />