Scholarlink

<p>The present study uniquely integrates an economic analysis with the practical evaluation of cationic dye (methylene blue) adsorption using Carboxymethyl Chitosan-Montmorillonite (CMC/MMT) nanocomposites for industrial wastewater treatment. The most influential parameters affecting adsorption, namely temperature, initial dye concentration, contact time, and pH, were explored. The sorption mechanism of CMC/MMT was analyzed using Langmuir and Freundlich isotherm models and the adsorption kinetics were evaluated using pseudo-first-order and pseudo-second-order kinetic models. Moreover, a comparison between the prepared ion exchanger and commercial resin, namely Amberlite IR 120, was conducted. The effective values of pH and temperature were found to be 8.5 and 30&#xa0;°C, respectively. The maximum adsorption capacity was determined to be 435&#xa0;mg/g compared to 290&#xa0;mg/g for the commercial resin, indicating that the prepared nanocomposite has a greater capacity for cationic dye removal. The adsorption performance of CMC/MMT demonstrated that the adsorption kinetics and isotherms were compatible with a pseudo-second-order model and the Langmuir isotherm respectively. Furthermore, the results of the techno-economic study for the nanocomposite production revealed that the synthesized resin under investigation exhibits a lower cost per kilogram of dye removed compared with the commercial resin.</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

Integrated economic and adsorption performance study of CMC/MMT nano-composite for cationic dye removal from industrial wastewater

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月25日

查看全文
  • Maaly Khedr,
  • Ahmed I. Waly,
  • Azza I. Hafez,
  • Hanaa M. Ali,
  • Hanaa Gadallah,
  • Rania Sabry

摘要

The present study uniquely integrates an economic analysis with the practical evaluation of cationic dye (methylene blue) adsorption using Carboxymethyl Chitosan-Montmorillonite (CMC/MMT) nanocomposites for industrial wastewater treatment. The most influential parameters affecting adsorption, namely temperature, initial dye concentration, contact time, and pH, were explored. The sorption mechanism of CMC/MMT was analyzed using Langmuir and Freundlich isotherm models and the adsorption kinetics were evaluated using pseudo-first-order and pseudo-second-order kinetic models. Moreover, a comparison between the prepared ion exchanger and commercial resin, namely Amberlite IR 120, was conducted. The effective values of pH and temperature were found to be 8.5 and 30 °C, respectively. The maximum adsorption capacity was determined to be 435 mg/g compared to 290 mg/g for the commercial resin, indicating that the prepared nanocomposite has a greater capacity for cationic dye removal. The adsorption performance of CMC/MMT demonstrated that the adsorption kinetics and isotherms were compatible with a pseudo-second-order model and the Langmuir isotherm respectively. Furthermore, the results of the techno-economic study for the nanocomposite production revealed that the synthesized resin under investigation exhibits a lower cost per kilogram of dye removed compared with the commercial resin.