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] |