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4. CWC 181: Other inorganic solid waste <br />Site 2010 <br />SLAC 333 <br />LLNL 75 <br />For SLAC <br />2014 qua <br />240 <br />0 - <br />4.1 Metal finishing operations including parts cleaning and metal plating <br />Spent cyanide filters are generated by the plating shop operations. CWC 181, which is <br />in the form of spent filters used in cyanide baths, is reduced by extending the life of the <br />fiIters by monitoring their pressure drop. Additional waste reduction measures for the <br />fiIters are not feasible until the cyanide bath usage is actually eliminated. <br />For LLNL <br />4.2 Anaiyticat Lab Operations <br />In 2011, chemistry, materials and life science research activities in B361 generated 75 <br />pounds of this waste stream through the disposal of spent glass tubes. The tubes used in <br />the Accelerator Mass Spectrometer contained materials that required the spent tubes to be <br />packed in mineral oil prior to disposal. <br />A new interface was evaluated in 2011 and implemented ui 2012 that reduced both the <br />volume and the toxicity of this was stream. In 2014, only 29 pounds of hazardous waste <br />was generated and no extremely hazardous waste was generated from this process. <br />September 1, 2015 SB 14 Report <br />