heavy metals

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For the purpose of agricultural spreading, heavy metal content should be checked (table 6).

After advanced sludge mineralisation in an acid medium, the ICP method can be used to measure metal contents.

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Table 6. Heavy metal content

For the purpose of agricultural spreading, heavy metal content should be checked (table 6).

After advanced sludge mineralisation in an acid medium, the ICP method can be used to measure metal contents.