Scholarlink

<p>Municipal wastewater in Tanzania is often discharged without adequate treatment, leading to severe environmental pollution. This study explores the potential of unmodified banana peel as a low-cost, eco-friendly biosorbent for reducing turbidity (TB) and chemical oxygen demand (COD) in municipal wastewater. A Box-Behnken Design of Response Surface Methodology (RSM) was used to optimize operating conditions, including mixing time (10–60&#xa0;min), pH (4–10), and banana peel dosage (5–20&#xa0;g). The process achieved 93% TB reduction and 79% COD reduction at optimal conditions of 55&#xa0;min, pH 4.8, and 9&#xa0;g/L dosage. The adsorption process followed the Langmuir isotherm model, indicating monolayer adsorption, and pseudo-second-order kinetics, suggesting chemisorption. With sorption capacities of 21.61&#xa0;mg/g (TB) and 11.37&#xa0;mg/g (COD), banana peels present a sustainable solution for wastewater treatment. This study provides a practical alternative for resource-limited settings, aligning with circular economy and green chemistry principles. Further research on scalability and long-term biosorbent reusability is recommended.</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

Enhancing simultaneous reduction of turbidity and chemical oxygen demand from municipal wastewater using banana peel biosorbents: a response surface methodology approach

  • 期刊论文

  • 发表日期：

    2026年1月23日

查看全文
  • Magori Jackson Nyangi

摘要

Municipal wastewater in Tanzania is often discharged without adequate treatment, leading to severe environmental pollution. This study explores the potential of unmodified banana peel as a low-cost, eco-friendly biosorbent for reducing turbidity (TB) and chemical oxygen demand (COD) in municipal wastewater. A Box-Behnken Design of Response Surface Methodology (RSM) was used to optimize operating conditions, including mixing time (10–60 min), pH (4–10), and banana peel dosage (5–20 g). The process achieved 93% TB reduction and 79% COD reduction at optimal conditions of 55 min, pH 4.8, and 9 g/L dosage. The adsorption process followed the Langmuir isotherm model, indicating monolayer adsorption, and pseudo-second-order kinetics, suggesting chemisorption. With sorption capacities of 21.61 mg/g (TB) and 11.37 mg/g (COD), banana peels present a sustainable solution for wastewater treatment. This study provides a practical alternative for resource-limited settings, aligning with circular economy and green chemistry principles. Further research on scalability and long-term biosorbent reusability is recommended.

Graphical abstract