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Sustainable sludge handling - EU Project Neptune

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Assessment of primary and secondary <strong>sludge</strong><br />

characteristics in the <strong>Neptune</strong> project (metals)<br />

10000<br />

1000<br />

Cd primary Cd secondary Hg primary Hg secondary<br />

As primary As secondary Ni primary Ni secondary<br />

Cr primary Cr secondary Pb primary Pb secondary<br />

Cu primary Cu secondary Mn primary Mn secondary<br />

Zn primary Zn secondary<br />

Concentration (mg/kg dry solid)<br />

100<br />

10<br />

1<br />

0,1<br />

0,01<br />

Roma Nord Cobis Fregene<br />

<strong>Neptune</strong> project, contract no 036845, FP6-2005-Global-4, SUSTDEV-2005-3.II.3.2 8

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