Removal of Sulfates Containing in Water, by an Electro-Coagulation Process
This work presents a study of sulfate removal from a solution that simulates mine drainage in Guanajuato region (sulfate concentration 1400 ppm), by electrocoagulation (EC) method, using aluminum as a sacrifice anode in a lab scale electro-coagulation reactor. The couplings with a phytoremediation process improve better result. The removal of sulfates with the coupling of these two methods was satisfactory; decreasing the sulfate concentration around 90%. Results are also presented of sulfate removal from different abandoned mines drainage in Guanajuato, Mexico. Sulfate removal is followed during EC and the phytoremediation test, using HPLC and UV-vis.
The electrocoagulation method has shown good results in the removal of arsenic and sulfates (Primitivo, et al., 2014). This work presents also the results with different sulfate concentrations, types of water and the coupling of the EC method with another different method ( phytoremediation), to reduce costs and increase the percentage of removal of sulfates.
We thank the financial support given by CONACYT-CONCYTEG through the project GTO-2012-C04-195057
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