Adsorption of COD in Coking Wastewater on Nitric Acid-Modified Blue Coke Activated Carbon

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_center" colspan="2">Langmuir equation</td><td class="align_center" colspan="4">Freundlich equation</td></tr><tr class="thead"><td class="align_left">qm (mg·g−1)</td><td class="align_center">a (L·mg−1)</td><td class="align_center">R2</td><td class="align_center">KF</td><td class="align_center">n−1</td><td class="align_center">R2</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">115.69</td><td class="align_center">2.06 × 10−3</td><td class="align_center">0.9786</td><td class="align_center">126.18</td><td class="align_center">0.428</td><td class="align_center">0.9337</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Adsorption isotherm parameter.</div>

Journal of Chemistry

tab5

Table 5

Table 5: Adsorption of COD in Coking Wastewater on Nitric Acid-Modified Blue Coke Activated Carbon 