TMEs

Analysis technique

Particle size

Optimal particle size

References

Mn2+ Ni2+, Cr3+, Cu2+, Fe2+, Zn2+

Sieving

Three categories:

A < 0.125 mm

0.125 < B < 0.420 mm

0.420 < C < 1.180 mm

A (Ni2+, Cr3+, Cu2+, Fe2+)

B (Mn2+)

C (Zn2+)

Farrokhzadeh et al. [11]

Ag+

Sieving

0.500, 0.180, 0.075 mm

0.500 mm

Araujo et al. [13]

Zn2+

Sieving

Three categories:

<0.255 mm

0.255 - 0.355 mm

0.355 - 0.500 mm

<0.255 mm

Bhatti et al. [3]

Cd2+

Sieving

0.105, 0. 210, 0.420 mm

0.105 mm

Sharma et al. [8]

Cu2+, Ni2+, Zn2+

Sieving

1 mm

0.074 mm

Kalavathy and Miranda [2]