Reuse of Sewage Sludge as Organic Agricultural Products: An Efficient Technology-Based Initiative

Figure 7

(a) Concentration of chromium in soil after different kinds of treatment. (b) Concentration of arsenic in soil after different kinds of treatment. (c) Concentration of cadmium in soil after different kinds of treatment. (d) Concentration of copper in soil after different kinds of treatment. (e) Concentration of nickel in soil after different kinds of treatment. (f) Concentration of lead in soil after different kinds of treatment. (g) Concentration of zinc in soil after different kinds of treatment.

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(b)

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