Can electrochemistry enhance the removal of organic pollutants by phytoremediation?

Electrokinetic-assisted phytoremediation of atrazine: Differences between electrode and interelectrode soil sections

“…Root biomass ranged between 0.14 and 0.20 g plant -1 while shoot biomass did between 0.26 and 0.36 g plant -1 (Figure 3). In a previous paper, we reported that the application of an electric current of 2 and 4 V cm -1 only decreased significantly, as compared with pots without DC application, the root biomass of maize (the plants were grown in the interelectrode soil section), while shoot biomass was not significantly affected by the electric field [12].…”

“…The total duration of the EKPR test was 14 days from the application of atrazine and the electric field. The experimental conditions were based on our previous research [12,23].…”

“…To our knowledge, there are only two papers which have reported, without conclusive results, the application of EKPR to soils polluted by heavy metals and PAHs [10,11]. More recently, Sánchez et al [12] studied the application of EKPR to a soil spiked with atrazine using maize plants. They found that the application of an electric field significantly enhanced the atrazine removal with respect to that of a phytoremediation test, although the application of the electric current led to a slight decrease on maize biomass.…”

The combination of phytoremediation and electrokinetics remediation technology on arsenic contaminated remediation in tailing storage facilities from gold mine

“…Prolonged electromagnetic field treatment can negatively impact the plant roots to which they are directly exposed. Hence, roots are more affected by an electromagnetic field than stems and leaves ( Sanchez et al., 2018 ). However, when electromagnetic field was applied for 3 hours per day, biomass of the experimental plants, especially plant root biomass was maintained as shown in Figure 3 (b).…”

Effects of Electrokinetics on Arsenic Mobility and Accumulation in Mott Dwarf Napier Grass for Treatment of Mine Tailings

“…On the other hand, at a high applied electric eld (4 V cm − 1 ), the electric current and moisture content in the mine tailings tends to decrease due to the intense hydrolysis reaction. Furthermore, the plant roots can also increase the porosity of the mine tailings, which will create gaps between the mine tailing particles and so increase the water retention and ion mobility (Sanchez et al, 2018).…”