Treatment of Chemical–Mechanical Planarization Wastes by Electrocoagulation/Electro- Fenton Method

Experimental design approach applied to the elimination of crystal violet in water by electrocoagulation with Fe or Al electrodes

“…7A) is consistent with a recent work by Mouedhen et al [22]. The low iron concentration in solution is attributed to the poor solubility of iron species in the range of the solution pH [23]. In turn, the minimum solubility of Al ions occurs at pH ∼ 6.3 [24] and as the pH increases, the formation of the soluble Al(OH) 4 − is favoured.…”

Electrofiltration of silica nanoparticle-containing wastewater using tubular ceramic membranes

“…Thus, several relatively new treatment methods including treatment trains have been developed/tested and/or reviewed [20][21][22][23]. In the literature, several researchers have reported that electrocoagulation (EC) [24][25][26] and electrofiltration (EF) [21,22] are effective in removing ultrafine particles from CMP wastewaters. Therefore, a simultaneous electrocoagulation/electrofiltration (EC/EF) process has been developed for evaluating its capability of treating various nanoparticles-containing wastewaters [15].…”

Review—Understanding and Controlling Electrochemical Effects in Wet Processing

“…This technique, known as electrodecantation is suitable where recycle and reuse of particles is desirable. 15 The results of application of EC-EF technique to CMP wastewater from a semiconductor manufacturing facility in Taiwan 16 is shown in Figure 11. The treatment efficiency, as determined by lowest turbidity, was obtained when the electric field was applied to the waste stream at a pH of 9.…”