Scholarlink

<p>This study examines the removal of bisphenol A from wastewater by integrating hyphenated Fenton oxidation with adsorption techniques. Flyash and saw dust mixture was granulised and subjected to pyrolysis, resulting in mesoporous granules. A packed bed column reactor using this composite have been studied for bisphenol A removal and later on used for the treatment of municipal sewage water. The fixed-bed adsorption systemachieved a bisphenol A adsorption capacity of 110.61&#xa0;mg/g with a removal efficiency of 92%.To gain a deeper understanding of adsorption mechanisms, experimental data were applied to the Yoon-Nelson and Thomas models, respectively. Wastewater samples were treated in two two-stage process. In the first stage,samples were treated with Fenton reagent,whilein the second stage, the effluent of the earlier process was loaded to fixed-bed reactor using a peristaltic pump.The flow rate of effluent was adjusted to 0.5&#xa0;mL/min with bed height 15&#xa0;cm, resultingin an alkalinity removal efficiency of 91%, chloride 85%, COD 92%, NH<sub>3</sub>-N 88%, NO<sub>3</sub><sup>−</sup> 86%, PO<sub>4</sub><sup>3−</sup> 84% and SO<sub>4</sub><sup>2−</sup> 94%, respectively.Additionally, the regeneration potential of the spent adsorbent using methanol solution indicated, continuous application of the packed bed reactor.A decrease in bioluminescenceof <i>Aliivibrio fischeri</i> to94.67% indicated a significant drop in the wastewater ecotoxicological load.These results highlighted the superior efficacy of the combined treatment method, representing a significant advancement in developing sustainable and efficient wastewater treatment systems.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mesoporous Fly Ash-Saw Dust Biochar Granules Packed Bed Reactor for Bisphenol A Removal and Studies on Integrated Wastewater Treatment

  • 期刊论文

  • 发表日期：

    2025年9月12日

查看全文
  • Amreen Bano,
  • Bablu Prasad,
  • Hemen Dave,
  • Kumar Suranjit Prasad

摘要

This study examines the removal of bisphenol A from wastewater by integrating hyphenated Fenton oxidation with adsorption techniques. Flyash and saw dust mixture was granulised and subjected to pyrolysis, resulting in mesoporous granules. A packed bed column reactor using this composite have been studied for bisphenol A removal and later on used for the treatment of municipal sewage water. The fixed-bed adsorption systemachieved a bisphenol A adsorption capacity of 110.61 mg/g with a removal efficiency of 92%.To gain a deeper understanding of adsorption mechanisms, experimental data were applied to the Yoon-Nelson and Thomas models, respectively. Wastewater samples were treated in two two-stage process. In the first stage,samples were treated with Fenton reagent,whilein the second stage, the effluent of the earlier process was loaded to fixed-bed reactor using a peristaltic pump.The flow rate of effluent was adjusted to 0.5 mL/min with bed height 15 cm, resultingin an alkalinity removal efficiency of 91%, chloride 85%, COD 92%, NH3-N 88%, NO3− 86%, PO43− 84% and SO42− 94%, respectively.Additionally, the regeneration potential of the spent adsorbent using methanol solution indicated, continuous application of the packed bed reactor.A decrease in bioluminescenceof Aliivibrio fischeri to94.67% indicated a significant drop in the wastewater ecotoxicological load.These results highlighted the superior efficacy of the combined treatment method, representing a significant advancement in developing sustainable and efficient wastewater treatment systems.

Graphical Abstract