Evaluation of a Novel Water Treatment Residual Nanoparticles as a Sorbent for Arsenic Removal

Figure 1

Scanning electron microscopy (SEM) image and energy dispersive X-ray (EDX) spectrum of (a) nWTR and (b) the As-saturated nWTR. The figures showed that a coating layer of adsorbed arsenic is formed on the surface of the nWTR after arsenic adsorption.

(a)

(b)