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3. CWC 141: Off -specification, aged, or surplus inorganics <br />Site 12010 quantity Qb) <br />LBNL 169 <br />3.1 CWC 141 Surplus inorganic chemicals <br />Site 2010 quantity (lb) <br />LBNL 69 <br />Raw Materials: CLW�1�4'JLI <br />Variety of chemicalsOff Site <br />Rydisposal <br />cts <br />FIGURE IV.3.1: ROUTINE LABORATORY CHEMICAL CLEANUP PROCESS <br />This waste stream represents the variety of chemicals used in the research and <br />operations areas. Whenever laboratories are cleaned out during laboratory relocations <br />or researcher departure, there is an increase in the generation of this waste stream. <br />During 2010 there were many laboratory moves to accommodate building renovation <br />efforts and for the consolidation of programmatic personnel under one roof. The <br />chemicals used represent those passed on from previous researchers, those no longer <br />needed for current research directions, house cleaning activities preceding a <br />laboratory move or the result of the closure of laboratory space. <br />SOURCE REDUCTION/POLLUTION PREVENTION EVALUATION <br />Description of Measure: <br />LBNL will continue to educate researchers and operations personnel on purchases of <br />only those chemicals needed for current research, and will also continue to encourage <br />researchers to substitute less hazardous chemicals whenever possible. <br />September 1, 2011 SB14 Plan <br />68 <br />4. CWC 181: Other Inorganic Solid <br />Site 2010 quantity lb <br />SLAC 333 <br />LLNL 75 <br />4.1 Soent Cvanide Filters from Metal Finishing Operations <br />Site 2010 quantity (lb) <br />SLAC 1333 <br />Raw Malerials: Metal finishing <br />Copper Cyanide operations, <br />Baths including parts <br />Carbon Steel, cleaning and <br />Stainless steel, metal plating <br />Copper, and <br />Aluminum parts <br />Product <br />Rinse Water from <br />Copper Cyanide <br />Plating (CWC 132) <br />Discharge <br />4FilterCake <br />to POTW <br />Off-site <br />(CWC 181) <br />Disposal <br />FIGURE IVA.1 METAL FINISHING PROCESS WASTE GENERATION PROCESS <br />Hazardous Waste and Process Description <br />CWC 181 and CWC 711 wastes are generated through the MFO Group in the SLAC <br />MFD, See section 1.1 for explanation of the process. <br />MFO performs a variety of activities to meet demanding and sometimes unique metal <br />finishing specifications in order to fabricate equipment for high-powered electrical <br />equipment. The use ofthese materials is essential for successful metal finishing <br />operations. CWC 181 waste, in the form of spent filters used in cyanide baths, is reduced <br />by extending the life ofthe filters by monitoring their pressure drop. <br />Hazardous Waste Management Approaches <br />Discussion of hazardous waste management approaches are discussed in Section 11-1.4, <br />Rinse 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. See discussion in the section 6.1. <br />September 1, 2011 SB 14 Plan <br />69 <br />