Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left"></td><td align="center">Original sludge</td><td align="center">Natural soil A</td><td align="center">Natural soil B</td><td align="center">Natural soil C</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">Fe</td><td align="center">4.73 × 10<sup>4</sup></td><td align="center">2.69 × 10<sup>4</sup></td><td align="center">3.71 × 10<sup>4</sup></td><td align="center">3.20 × 10<sup>4</sup></td></tr><tr><td align="left">Mn</td><td align="center">769</td><td align="center">694</td><td align="center">936</td><td align="center">618</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

The concentrations of Fe and Mn in original sludge and natural soil (mg<i>·</i>kg<sup>−1</sup>).

Bioinorganic Chemistry and Applications

tab4

Table 4

Table 4: Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application 

Table 4 | Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application 