Premium
Simultaneous recovery of heavy metals and degradation of organic species – copper and ethylenediaminetetra‐acetic acid (EDTA)
Author(s) -
Chaudhary Abdul J,
Donaldson John D,
Grimes Susan M,
ul Hassan Mukhtar,
Spencer Robert 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/(sici)1097-4660(200005)75:5<353::aid-jctb221>3.0.co;2-y
Subject(s) - copper , chemistry , electrochemistry , acetic acid , metal , degradation (telecommunications) , inorganic chemistry , effluent , anode , metal ions in aqueous solution , cathode , nuclear chemistry , electrode , environmental engineering , organic chemistry , telecommunications , computer science , engineering
In mixed industrial effluent the presence of metal ions can retard the destruction of organic contaminants and the efficiency of recovery of metal is reduced by the presence of the organic species. Results are presented for a copper–ethylenediaminetetra‐acetic acid (EDTA) system in which both effects occur. An electrochemical cell alone can be used to recover copper in pH range 1.5–4.5 but is not capable of achieving complete mineralisation of EDTA by anodic oxidation. A photolytic cell alone can achieve the destruction of EDTA at pH 3.5 but leaves copper in solution. A combined photolytic–electrochemical system using an activated carbon concentrator cathode achieves the rapid simultaneous destruction of EDTA and recovery of copper. © 2000 Society of Chemical Industry