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Removal of inorganic mercury from mine waste water by ion exchange
Author(s) -
Monteagudo José M,
Ortiz María J
Publication year - 2000
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/1097-4660(200009)75:9<767::aid-jctb281>3.0.co;2-1
Subject(s) - mercury (programming language) , chemistry , ion exchange , cationic polymerization , environmental chemistry , wastewater , ionic bonding , inorganic chemistry , ion exchange resin , hydronium , ion , waste management , nuclear chemistry , environmental engineering , environmental science , organic chemistry , computer science , engineering , programming language
The present study has been undertaken to investigate a process that might remove inorganic mercury from mine waste water streams by use an ion exchange resin system. A number of commercial resins have been evaluated as ion exchangers and the mercury content of the waste water, ranging from 70 to 90 ppm, is reduced to a permitted level of 34 ppb. Dowex XZS‐1, a strong cationic ion exchanger in a gel Form, has the most pronounced selectivity for mercury. The loaded resin was regenerated efficiently using HCl solutions, due to increased competition between Hg and hydronium ions and formation of an HgCl 4 2− ionic complex. © 2000 Society of Chemical Industry