Application of Raw and Modified Pomegranate Peel for Wastewater Treatment: A Literature Overview and Analysis

Figure 8

Scanning electron microscopy of physical- and chemical-activated PGP: (a) (PC2, AC2) [18, 40], (b) (AC1) [26], (c) (PPAC) [16], (d) (PC3, AC3) [18, 40].

(a)

(b)

(c)

(d)