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

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Shaking speed (rpm)</td><td class="align_center" colspan="6">Intraparticle diffusion model</td></tr><tr class="thead"><td class="align_center"><i>k</i><sub>p1</sub></td><td class="align_center"><i>C</i><sub>1</sub></td><td class="align_center"><i>R</i><sup>2</sup></td><td class="align_center"><i>k</i><sub>p2</sub></td><td class="align_center"><i>C</i><sub>2</sub></td><td class="align_center"><i>R</i><sup>2</sup></td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">0</td><td class="align_center">1.8389</td><td class="align_center">4.7896</td><td class="align_center">0.9799</td><td class="align_center">0.1074</td><td class="align_center">20.9996</td><td class="align_center">0.9983</td></tr><tr><td class="align_left">100</td><td class="align_center">1.3427</td><td class="align_center">21.3931</td><td class="align_center">0.9916</td><td class="align_center">0.5324</td><td class="align_center">26.0552</td><td class="align_center">0.9998</td></tr><tr><td class="align_left">200</td><td class="align_center">1.5439</td><td class="align_center">25.9375</td><td class="align_center">0.9372</td><td class="align_center">0.4070</td><td class="align_center">13.6655</td><td class="align_center">0.9373</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Kinetic parameters of adsorption using the intraparticle diffusion model.</div>

Journal of Chemistry

tab7

Table 7

Table 7: Adsorption of COD in Coking Wastewater on Nitric Acid-Modified Blue Coke Activated Carbon 