期刊
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
卷 12, 期 8, 页码 772-784出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15226510903390429
关键词
Bioremediation; Myriophyllum aquaticum; superfaradaic efficiencies
资金
- CONACyT [62000]
The elimination of organic contaminants in highly complex wastewater was tested using a combination of the techniques: electrocoagulation with aluminum electrodes and phytoremediation with Myriophyllum aquaticum. Under optimal operating conditions at a pH of 8 and a current density of 45.45 A m-2, the electrochemical method produces partial elimination of contaminants, which was improved using phytoremediation as a polishing technique. The combined treatment reduced chemical oxygen demand (COD) by 91%, color by 97% and turbidity by 98%. Initial and final values of contaminants in wastewaters were monitored using UV-vis spectrometry and cyclic voltammetry. Finally, the morphology and the elemental composition of the biomass were characterized with using scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS). The presence of Al in the roots of plants in the system indicates that the aluminum present in the test solution could be absorbed.
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