Scholarlink

<p>Olive oil mill wastewater (OMW) is a by-product of the olive oil extraction process that causes serious environmental problems. This is due to the high concentrations of organic compounds (COD) and other toxic elements present in OMW. The rapid growth of the olive oil industry has necessitated its treatment very much needed. In this investigation, an agricultural waste material—date palm trunk fiber (DPTF)—was used as a low-cost adsorbent to reduce chemical oxygen demand (COD), K<sup>+</sup>, and Cu<sup>+2</sup> from real OMW by considering the influence of contact time, pH, and adsorbent amount. FTIR spectroscopy and scanning electron microscopy (SEM) analyses of DPTF before and after adsorption were performed to understand the mechanism of adsorption. The results suggest that the adsorption of COD and Cu<sup>+2</sup> reached equilibrium after 7&#xa0;h, whereas that of K ions reached equilibrium within 6&#xa0;h. The variation in the pH of the OMW solution showed that adsorption was more favorable under near-neutral conditions. The kinetic study indicated that the adsorption onto DPTF followed a pseudo-second-order reaction. In addition, the results of the thermodynamic study revealed that adsorption was spontaneous, and there was a decrease in the order of the OMW/DPTF interface during the adsorption process.</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

Date palm fiber as a potential low-cost adsorbent for real olive oil mill wastewater treatment: kinetic, modeling, and thermodynamic study

  • 期刊论文

  • 发表日期：

    2025年7月15日

查看全文
  • Habis Al-Zoubi,
  • Nuseibah El-Amaireh,
  • Feras Fraige,
  • Osama Al-Matari,
  • Renal Al-Tawarah,
  • Yousra Al-Farahneh

摘要

Olive oil mill wastewater (OMW) is a by-product of the olive oil extraction process that causes serious environmental problems. This is due to the high concentrations of organic compounds (COD) and other toxic elements present in OMW. The rapid growth of the olive oil industry has necessitated its treatment very much needed. In this investigation, an agricultural waste material—date palm trunk fiber (DPTF)—was used as a low-cost adsorbent to reduce chemical oxygen demand (COD), K+, and Cu+2 from real OMW by considering the influence of contact time, pH, and adsorbent amount. FTIR spectroscopy and scanning electron microscopy (SEM) analyses of DPTF before and after adsorption were performed to understand the mechanism of adsorption. The results suggest that the adsorption of COD and Cu+2 reached equilibrium after 7 h, whereas that of K ions reached equilibrium within 6 h. The variation in the pH of the OMW solution showed that adsorption was more favorable under near-neutral conditions. The kinetic study indicated that the adsorption onto DPTF followed a pseudo-second-order reaction. In addition, the results of the thermodynamic study revealed that adsorption was spontaneous, and there was a decrease in the order of the OMW/DPTF interface during the adsorption process.

Graphical abstract