(a) Calculate total and leachable metals of the samples and determine the efficiency of the acid wash treatment. 

(b): Compare the result of your extraction with the regulatory limit of TCLP for lead using Table 1. Is the wash hazardous or not according to TCLP? Comment on the success of the acid wash process. 

(c): Discuss briefly on the factors that would affect the TCLP test results.  

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Total Metal Contents of samples Sample ID Mass (g) 0.25 Sample 1: Crushed CRT funnel glass Sample 2: 0.25 Crushed CRT panel glass TCLP results Sample ID Mass (g) Sample 1: 20 Crushed CRT funnel glass Sample 2: 20 Crushed CRT panel glass Sample 3: 20 Acid washed CRT funnel glass Sample 4: 20 Acid washed CRT panel glass Final volume Ba (mg/L) (mL) Cr (mg/L) Pb (mg/L) 10 21.4972 0.5078 352.6986 21.5636 0.5833 351.3353 21.8144 0.3079 346.5185 10 71.6167 2.6725 17.7589 72.4913 2.6624 17.8051 70.8303 2.7016 17.5593 Ba (mg/L) Cr (mg/L) Pb (mg/L) Final pH Final volume (mL) 400 17.8215 < 0.02 376.1386 3.45 18.1825 < 0.02 371.1105 17.5335 < 0.02 373.2150 400 3.6452 0.02127 0.2083 2.97 3.7030 0.02093 0.2128 3.7001 0.02091 0.2117 400 0.4669 < 0.02 2.1820 3.06 0.4539 < 0.02 2.2102 0.4686 < 0.02 2.2162 400 1.0730 0.02870 0.05499 2.88 1.0664 0.02759 0.05936 1.0939 0.02845 0.04581 Total Metal Contents of samples Sample ID Mass (g) 0.25 Sample 1: Crushed CRT funnel glass Sample 2: 0.25 Crushed CRT panel glass TCLP results Sample ID Mass (g) Sample 1: 20 Crushed CRT funnel glass Sample 2: 20 Crushed CRT panel glass Sample 3: 20 Acid washed CRT funnel glass Sample 4: 20 Acid washed CRT panel glass Final volume Ba (mg/L) (mL) Cr (mg/L) Pb (mg/L) 10 21.4972 0.5078 352.6986 21.5636 0.5833 351.3353 21.8144 0.3079 346.5185 10 71.6167 2.6725 17.7589 72.4913 2.6624 17.8051 70.8303 2.7016 17.5593 Ba (mg/L) Cr (mg/L) Pb (mg/L) Final pH Final volume (mL) 400 17.8215 < 0.02 376.1386 3.45 18.1825 < 0.02 371.1105 17.5335 < 0.02 373.2150 400 3.6452 0.02127 0.2083 2.97 3.7030 0.02093 0.2128 3.7001 0.02091 0.2117 400 0.4669 < 0.02 2.1820 3.06 0.4539 < 0.02 2.2102 0.4686 < 0.02 2.2162 400 1.0730 0.02870 0.05499 2.88 1.0664 0.02759 0.05936 1.0939 0.02845 0.04581

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