Effective Factor Analysis for Chromium(VI) Removal from Aqueous Solutions and Its Application to Tunçbilek Lignite Using Design of Experiments

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Factor</td><td class="align_center">Description</td><td class="align_center">Low level</td><td class="align_center">Center point</td><td class="align_center">High level</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left"><i>A</i></td><td class="align_center">Active carbon type</td><td class="align_center">PAC</td><td class="align_center">—</td><td class="align_center">CAC</td></tr><tr><td class="align_left"><i>B</i></td><td class="align_center">Temperature (K)</td><td class="align_center">298</td><td class="align_center">310.5</td><td class="align_center">323</td></tr><tr><td class="align_left"><i>C</i></td><td class="align_center">ppm</td><td class="align_center">25</td><td class="align_center">612.5</td><td class="align_center">1200</td></tr><tr><td class="align_left"><i>D</i></td><td class="align_center">pH</td><td class="align_center">2</td><td class="align_center">4</td><td class="align_center">6</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Controllable factors and their levels.</div>

Journal of Chemistry

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Table 2

Table 2: Effective Factor Analysis for Chromium(VI) Removal from Aqueous Solutions and Its Application to Tunçbilek Lignite Using Design of Experiments 

Table 2 | Effective Factor Analysis for Chromium(VI) Removal from Aqueous Solutions and Its Application to Tunçbilek Lignite Using Design of Experiments 