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X.3 Tank Farm Aqueous Solution Treatment <br />Site <br />2014 quantity (lb) <br />LLNL <br />187J00 <br />Tank Farm Aqueous <br />Solution: CWC 132, <br />Metal Contaminants, <br />Orgatuc Chemicals. <br />Wash water. <br />Add6d <br />chemicals and <br />Rotary Drum <br />Vacuum <br />Filtration at <br />B695, DWTF. <br />Treated Aqueous <br />Solution sent back to <br />Tank Farm, Sampled <br />Prior to Discharge. <br />Residues for <br />Off Site <br />Disposal. <br />Sewer <br />Discharge. <br />FIGURE 11.1.3. CWC 132 PROCESS FLOW DIAGRAM FOR TANK FARM AQUEOUS SOLUTION <br />TREATMENT PROCESS <br />Aqueous solutions generated from various LLNL programmatic activities and operations <br />such as debris washing, sample preparation and analysis, and equipment, maintenance and <br />cleanout. These compatible wastes were consolidated at the B695 tank farm for treatment. <br />The treatment process involved addition of appropriate treatment chez�icals followed by <br />filtration using a rotary drum to separate solids from liquids. The liquid portion of the waste <br />was tested to make sure it met the discharge limits before discharging to the sanitary sewer. <br />The solids were sent offsite for disposal. <br />Wastewater treatment can vary from tune to time based on mission -dri <br />ven activities by <br />programs that generate wastewater requiring heatment. <br />SOURCE REDUCTION/POLLUTIONFREVENTION EVALUATION <br />Description of Measure: <br />The volume of waste received into the tank farm for processing is dependent on the <br />volume of programmatic wastes generated. As such, there are no direct opportunities for <br />reducing the volume received. However, tank farm operators minimize rinse water used in <br />the rotary drum tout and spill controls are in place to mi ire waste generation. <br />September 1, 2015 SB14 Plan <br />