?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fd-scholarship-dev.library.pitt.edu%2F6653%2F&rft.title=USE+OF+ABANDONED+MINE+DRAINAGE+SOLIDS+FOR+THE+CONTROL+OF+MERCURY+EMISSIONS+FROM+COAL-FIRED+POWER+PLANTS&rft.creator=Sun%2C+Wei&rft.description=Abandoned+mine+drainage+(AMD)+solids+were+evaluated+for+their+ability+to+capture+mercury+from+the+flue+gas+of+coal+fired+power+plants.+A+fixed+bed+system+was+used+to+test+Hg+adsorption+and+oxidation+by+this+material+in+a+typical+simulated+flue+gas.+Fixed-bed+tests+showed+that+abandoned+mine+drainage+from+three+mines+displayed+considerable+capability+for+absorbing+and+oxidizing+Hg0.+Among+all+the+flue+gas+components%2C+HCl+showed+the+greatest+impact+on+Hg+capture+in+the+fixed-bed+test%2C+while+O2+was+shown+to+be+not+as+important.+A+decrease+in+mercury+capture+and+oxidation+was+observed+when+SO2+and+NO2+were+added+to+the+flue+gas.+The+addition+of+SO2+and+NO+prohibited+mercury+uptake+but+showed+no+impact+on+Hg+oxidation.+An+entrained+flow+system+was+utilized+to+test+mercury+removal+efficiency+when+abandoned+mine+drainage+solids+were+injected+into+the+flue+gas.+Four+different+AMD+solids+were+tested+using+both+eastern+coal+and+PRB+coal+flue+gas.+Results+showed+that+one+AMD+sample+achieved+about+80%25+Hg+removal+at+the+solids+injection+rate+of+0.39+g%2Fm3+injection+rate.+Mercury+removal+efficiency+with+other+AMD+samples+under+the+identical+conditions+ranged+from+25%25~50%25.+Thus%2C+this+material+shows+great+potential+as+a+novel+sorbent+on+Hg+emission+control+technology.+Moreover%2C+Hg+removal+efficiency+was+found+to+be+positively+related+to+the+iron+content+of+AMD+solids.+Therefore%2C+AMD+solids+with+high+iron+content+would+be+more+desirable+as+mercury+removal+sorbent.+The+foam+index+test+was+also+performed+using+this+material+to+study+the+possible+effect+of+AMD+solids+on+the+application+of+fly+ash+in+concrete+making%2C+which+is+the+main+disadvantage+of+activated+carbon+injection+technology.+The+test+results+indicated+that+all+AMD+samples+used+in+this+study+would+not+have+any+adverse+effect+on+the+fly+ash+with+regards+to+its+application+for+concrete+making.&rft.date=2009-06-29&rft.type=University+of+Pittsburgh+ETD&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fd-scholarship-dev.library.pitt.edu%2F6653%2F1%2FWeiSunTHESIS.pdf&rft.identifier=++Sun%2C+Wei++(2009)+USE+OF+ABANDONED+MINE+DRAINAGE+SOLIDS+FOR+THE+CONTROL+OF+MERCURY+EMISSIONS+FROM+COAL-FIRED+POWER+PLANTS.++Master's+Thesis%2C+University+of+Pittsburgh.++++(Unpublished)++