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Domestic Sewage Sludge Application to an Acid Tropical Soil: Part III. Fractionation Study of Heavy Metals in Sewage Sludge and Soils Applied with Sewage Sludge

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Academic year: 2020

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Figure

Fig. 1:  Forms of Ni, Cd, Zn, Pb and Cu in sewage sludge
TABLE 1Mean total concentration of heavy metals (n=5) for the different
Fig. 2 (a-e): Forms of Cd, Cu, Ni, Pb and Zn  in soil after first  (C1) andthird (C3) maize cycles
TABLE 2Correlation coefficient (r) between heavy metals in the soil after the first and third

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