528 Figure 6 – Integrated flowsheet: acid solution concentration reduction Figure 7 – Integrated flowsheet: arsenic precipitation FILTER PRESS GYPSUM AGITATED TANK FILTRATE COMPRESSED AIR ARSENIC SCRUBBER BLOWDOWN CaOH2 OFFLOAD TRUCK WEIGHING BIN HOLDING TANK COMPRESSED AIR TO As PRECIPITATION CIRCUIT ARSENIC FROM ACID REGENERATION CIRCUIT FILTER PRESS TO VITRIFICATION PLANT PRECIPITATION SLURRY TANK FILTRATE HOLDING TANK COMPRESSED AIR As-CONTAMINATED ACID FeCl3 OFFLOAD TRUCK WEIGHING BIN P-92 DILUTION UNIT HOLDING TANK FLOCULANT DOSING SYSTEM STATIC MIXER CALIBRATION COLUMN MgO OFFLOAD TRUCK TREATED SOLUTION TO EFFLUENT THICKENER OVERFLOW P-87 WEIGHING BIN FLOCULANT CONCENTRATE SOLUTION WATER HOLDING TANK COMPRESSED AIR
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