Physicochemical Characterization of Mining Waste from the Betare-Oya Gold Area (East Cameroon) and an Adsorption Test by Sabga Smectite (North-West Cameroon)

Table 13

Comparison of the results with similar works: same and different points.

Works	Location	Physical analysis of water				Heavy metals analysis of water	Characterization of sediments	Water treatment
		pH	EC (μs·cm^−1)	Tu (NTU)	SS (mg·L^−1)
[8]	Galma Zaria, Nigeria	6.02–7.40	930–0120	—	9–81	No heavy metals analysis	Physical characterization of sediments	No water treatment
[9]	Hire, Ivory Coast	5.9–7.9	60–2660	—	—	As, Pb, Cd, Cr, Zn, and Hg pollution	No sediment characterization	No water treatment
[50]	Bibiani, Ghana	8.1–8.3	2160–2650	1.2–5.8	41–96	As and Fe pollution	No sediment characterization	No water treatment
[51]	Surow River, Ghana	6.57–7.69	0.20–0.95	30–850	—	Fe and Hg pollution	No sediment characterization	No water treatment
[3]	Betare-Oya, East Cameroun	5.42–7.58	11.60–122.10	2.30–4758	2.00–8996	Cu, Fe, Mn, As, and Pb pollution	No sediment characterization	No water treatment
[52]	Birim River, Ghana	6.36–7.02	58.03–128.9	31.66–3000	—	Fe pollution	Fe, Cd, and As concentrations are above the WHO limit	No water treatment
[53]	Tangandougou, Mali	No physical characterization				Cd pollution; no Pb and As pollution	No sediment characterization	No water treatment
[6]	Gorontalo, Indonesia	No physical characterization				As, Hg, and Pb pollution	As, Hg, and Pb pollution	No water treatment
[5]	Lower Pra Basin, Ghana	4.90–7.90	60–1140	—	—	Fe, Mn, Pb, Al, and Hg pollution	No sediment characterization	No water treatment
[10]	Djouzami, Adamawa Cameroon	6.59–7.02	23.3–24.9	38.23–253.3	46–318	Cd, Ni, Pb, and Fe pollution	No heavy metals pollution in sediments	Lead adsorption with Bana smectite; 100% maximum removal after adding 0.5; g
Present study	Betare-Oya, East Cameroon	6.3–7.1	25.5–43	60–237.67	50.5–666.6	Mn, Fe, As, and Cd pollution	Cu, Ni, Mn, Fe, and Cr pollution	Cu, Zn, Mn, Fe, and Pb water treatment test