Recovery of Mercury from Contaminated Primary and Secondary Wastes
نویسنده
چکیده
Effective removal of mcroury conl”amindionborn water is a compl~x and difficult problcm. In patiicular, mercury treatment ornuluml waters is difficult because of the low regulatory w.amkirds. For exmnplc, MCEnvironnwntiil Protection Agency lMS established a natioml wnbitmt waler quality standwd of 12 pans-per-trillion (ppt), whereas the slandwd is 1.8 ppt in the Great LakGSJ Rugion. In addition, mercury is typically present in severul different forms, but sorption processes are rarely cffcctivc with mwc than one or two of these fumw. ‘~o meet the low regulakny discharge limits, a so~liun prucess must bc able to IKMressall forms of mcreury present iu the water. One approuch is toapply different sorbents in, series depending on the meruury speciation and the wgulatwy discharge limits,
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