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|align="center" valign="top"| <font size="43" color="#a0a2a3">Planning</font><br>
{{Icon|file=filler icon.png|alt=Bottom-up Planning Process|width=85|link=Practitioner's Tool / Bottom-up Planning Process}} <br> [[Practitioner's Tool / Bottom-up Planning Process | Bottom-up <br>Planning Process]]
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{|style="height:145px"
|align="center" valign="top"| <font size="43" color="#a0a2a3">Pretreatment and Grease Management</font><br>
{{Icon|file=filler icon.png|alt=Practitioner's Tool / Pretreatment for Markets |width=85|link=Practitioner's Tool / Pretreatment for Markets }} <br> [[Practitioner's Tool / Pretreatment for Markets | Pretreatment <br>for Markets]]
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{|style="height:145px; background:#efefef"
|align="center" valign="top"| <font size="43" color="#a0a2a3">Secondary Treatment</font><br>{{Icon|file=filler icon.png|alt= |width=85|link= }} <br> [[Page name]]|}{|style="height:145px; background:#efefef"|align="center" valign="top"| {{Icon|file=filler icon.png|alt=Secondary Treatment Methods |width=85|link=Practitioner's Tool / Secondary Treatment Methods }}<br> [[Practitioner's Tool / Secondary Treatment Methods | Secondary <br>Treatment Methods]]
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{|style="height:145px; background:#efefef"
|align="center" valign="top"| {{Icon|file=filler icon.png|alt= Selecting Proper Grades for Use in Biotreatment Systems|width=85|link= Practitioner's Tool / Selecting Proper Grades for Use in Biotreatment Systems }} <br> [[ Practitioner's Tool / Selecting Proper Grades for Use in Biotreatment Systems | Selecting Proper <br>Grades for Use in <br>Biotreatment Systems]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Extended Aeration |width=85|link=Practitioner's Tool / Extended Aeration }} <br> [[Practitioner's Tool / Extended Aeration | Extended Aeration]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Sequencing Batch Reactors |width=85|link=Practitioner's Tool / Sequencing Batch Reactors }} <br> [[Practitioner's Tool / Sequencing Batch Reactors | Sequencing <br>Batch Reactors]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Oxidation Ditches |width=85|link=Practitioner's Tool / Oxidation Ditches }} <br> [[Practitioner's Tool / Oxidation Ditches | Oxidation Ditches]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Fixed Activated Sludge Treatment |width=85|link=Practitioner's Tool / Fixed Activated Sludge Treatment }} <br> [[Practitioner's Tool / Fixed Activated Sludge Treatment | Fixed Activated <br>Sludge Treatment]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Rotating Biological Contactors |width=85|link=Practitioner's Tool / Rotating Biological Contactors }} <br> [[Practitioner's Tool / Rotating Biological Contactors | Rotating <br>Biological Contactors]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| <font size="3" color="#a0a2a3">Disinfection</font><br>{{Icon|file=filler icon.png|alt=Natural Disinfection |width=85|link=Practitioner's Tool / Natural Disinfection }} <br> [[Practitioner's Tool / Natural Disinfection | Natural Disinfection]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Chemical Disinfection |width=85|link=Practitioner's Tool / Chemical Disinfection }} <br> [[Practitioner's Tool / Chemical Disinfection | Chemical Disinfection]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Physical Disinfection |width=85|link=Practitioner's Tool / Physical Disinfection }} <br> [[Practitioner's Tool / Physical Disinfection | Physical Disinfection]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| <font size="3" color="#a0a2a3">Septage Management</font><br>{{Icon|file=filler icon.png|alt=Septage Collection |width=85|link=Practitioner's Tool / Septage Collection }} <br> [[Practitioner's Tool / Septage Collection | Septage Collection]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Septage Transportation |width=85|link=Practitioner's Tool / Septage Transportation }} <br> [[Practitioner's Tool / Septage Transportation | Septage <br>Transportation]]|}{|style="height:145px; background:#efefef" |align="center" valign="top"| {{Icon|file=filler icon.png|alt=Septage Treatment and Reuse |width=85|link=Practitioner's Tool / Septage Treatment and Reuse }} <br> [[Practitioner's Tool / Septage Treatment and Reuse | Septage Treatment<br> and Reuse]]
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{|style="height:145px; background:#efefef"
|align="center" valign="top"| {{Icon|file=filler icon.png|alt= Lime Stabilization of Septage |width=85|link= Practitioner's Tool / Lime Stabilization of Septage }} <br> [[ Practitioner's Tool / Lime Stabilization of Septage | Lime Stabilization <br>of Septage]]
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{|style="height:145px;
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