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2. CWC 181: Other Inorganic Solid <br />Site 2014 quantity b <br />SLAC 240 <br />2A Spent Cyanide Filters from Metal Finishing Operations <br />Site 120,14 quantity Qp <br />SLAC 1240 <br />Raw Materials: <br />Copper Cyanide <br />Baths <br />Carbon Steel, <br />Stainless steel, <br />Copper, and <br />Aluminum parts <br />Metal finishing <br />operations, Rinse water from <br />including parts Copper Cyanide <br />cleaning and Plating (CWC 132) <br />metal plating <br />On-site Discharge <br />Product Treatment to POTW <br />Filter Cake Off-site <br />(CWC 18 1) Disposal <br />FIGURE N.2.1 METAL F1MS%IING PROCESS WASTE <br />Hazardous Waste and Process Description <br />CWC 181 isg enerated through the Metal Finishing Operations (MFO) Group in the SLAC <br />Mechanical Fabrication Department (MFD), See section 1.1 for explanation of the process. <br />MFO erforms a variety of activities to meet demanding and sometimes unique metal <br />p <br />finishing specifications in order to fabricate equipment for high-powered electrical <br />equipment. The use of these materials is essential for successful metal finishing operations. <br />CWC 181 waste, in the form of spent filters used in cyanide baths, is reduced by extending <br />the life of the filters by monitoring their pressure drop. <br />•Hazardous Waste Management Approaches <br />Hazardous Waste Management Approaches <br />Discussion of hazardous waste management approaches are included in Section II -1, Rinse <br />Water from Copper Cyanide Plating —Metal Finishing Operations. <br />SOURCE REDUCTION/POLLUTION PREVENTION EVALUATION <br />Description of Measure: <br />Additional waste reduction measures for the filters are not feasible until the cyanide <br />bath usage is actually eliminated. <br />September 1, 2015 SB14 Plan <br />IV -3 <br />