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 Figure 6 – Integrated flowsheet: acid solution concentration reduction 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 Figure 7 – Integrated flowsheet: arsenic precipitation
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