Scholarlink

<p>Boron (B) contamination in water resources poses a significant global environmental challenge, necessitating efficient and sustainable remediation strategies. This study investigates the potential of Parthenium hysterophorus weed (PhW), an invasive species, as a novel bio-adsorbent for B removal from aqueous solutions. Various PhW-derived adsorbents were evaluated, including unmodified biomass, carbonized PhW (CPhW), and chemically activated forms using iron, aluminum, and mixed salt solutions. Batch adsorption experiments were conducted to assess the effects of pH (2–12), adsorbent dose (0.1–1&#xa0;g/30&#xa0;mL), contact time (5–120&#xa0;min), temperature (25–50&#xa0;°C), and initial B concentration (15–160&#xa0;mg/L) on removal efficiency. Unmodified PhW demonstrated excellent B uptake capacity, achieving up to 98.36% removal. Iron-impregnated CPhW exhibited the highest removal efficiency of 94.95%. Notably, comparable performance was observed in both synthetic solutions and natural seawater. Kinetic studies revealed that the pseudo-second-order model best described the adsorption process, indicating chemisorption as the rate-limiting step. Equilibrium data aligned closely with the Langmuir isotherm model, suggesting monolayer adsorption with a maximum capacity of 25.37&#xa0;mg/g. Scanning Electron Microscopy (SEM) analysis confirmed significant surface textural and porosity changes post-adsorption. Two-factor Analysis of Variance (ANOVA) identified initial B concentration as the most influential parameter affecting removal efficacy. Response Surface Methodology (RSM) facilitated the optimization of process parameters, simultaneously maximizing adsorption capacity and removal efficiency<i>.</i></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

An Investigation of Using Invasive Weed (Parthenium hysterophorus) for Sustainable Boron Removal from Aqueous Solutions

  • 期刊论文

  • 发表日期：

    2025年10月15日

查看全文
  • Shaima Salim Al-Saidi,
  • Mansour Al-Haddabi,
  • Sedky H. A. Hassan,
  • Mushtaque Ahmed,
  • Talal Etri

摘要

Boron (B) contamination in water resources poses a significant global environmental challenge, necessitating efficient and sustainable remediation strategies. This study investigates the potential of Parthenium hysterophorus weed (PhW), an invasive species, as a novel bio-adsorbent for B removal from aqueous solutions. Various PhW-derived adsorbents were evaluated, including unmodified biomass, carbonized PhW (CPhW), and chemically activated forms using iron, aluminum, and mixed salt solutions. Batch adsorption experiments were conducted to assess the effects of pH (2–12), adsorbent dose (0.1–1 g/30 mL), contact time (5–120 min), temperature (25–50 °C), and initial B concentration (15–160 mg/L) on removal efficiency. Unmodified PhW demonstrated excellent B uptake capacity, achieving up to 98.36% removal. Iron-impregnated CPhW exhibited the highest removal efficiency of 94.95%. Notably, comparable performance was observed in both synthetic solutions and natural seawater. Kinetic studies revealed that the pseudo-second-order model best described the adsorption process, indicating chemisorption as the rate-limiting step. Equilibrium data aligned closely with the Langmuir isotherm model, suggesting monolayer adsorption with a maximum capacity of 25.37 mg/g. Scanning Electron Microscopy (SEM) analysis confirmed significant surface textural and porosity changes post-adsorption. Two-factor Analysis of Variance (ANOVA) identified initial B concentration as the most influential parameter affecting removal efficacy. Response Surface Methodology (RSM) facilitated the optimization of process parameters, simultaneously maximizing adsorption capacity and removal efficiency.