Duwiejuah Abudu Ballu, Mutawakil Zubayda, Oyelude Emmanuel O
Department of Biotechnology and Molecular Biology, Faculty of Biosciences, University for Development Studies, Tamale, Ghana.
Department of Applied Chemistry, C. K. Tedam University of Technology and Applied Sciences, Navrongo, Ghana.
Int J Phytoremediation. 2025 Apr;27(5):596-605. doi: 10.1080/15226514.2024.2428434. Epub 2024 Nov 17.
Adsorption is one of the most efficient ways to eliminate hazardous metals. The study evaluated the effectiveness of banana peel biochar as a cheap adsorbent to remove hazardous metals from landfill leachate. The landfill leachate of 100 mg/L was mixed with banana peel biochar (0.50, 1.50, and 3.00 g each) and placed in a water bath for 15, 30, and 45 min at a constant temperature of 30 °C and 35 °C. The adsorption efficiency of banana peel biochar for nickel in the leachate ranged from 98.76% to 98.96% and chromium ranged from 99.71% to 99.77% at a temperature of 30 °C for 15 mins and 99.07% to 99.27% for Ni and 99.71% to 99.73% for Cr at a temperature of 35 °C for 45 min. Banana peel biochar maximum adsorption capacity of nickel ranged from 1.15 × 10 mg/g to 5.27 × 10 mg/g, and 1.05 × 10 mg/g to 6.76 × 10 mg/g for chromium. Adsorbent made from less expensive banana peel can affordably remove nickel and chromium from landfill leachate. To acquire a broad understanding of the adsorbent's application, more adsorptive research utilizing banana peels as an adsorbent to treat various wastes ought to be conducted.
吸附是去除有害金属最有效的方法之一。该研究评估了香蕉皮生物炭作为一种廉价吸附剂从垃圾渗滤液中去除有害金属的有效性。将100mg/L的垃圾渗滤液与香蕉皮生物炭（每份0.50、1.50和3.00g）混合，并在30°C和35°C的恒定温度下置于水浴中15、30和45分钟。在30°C温度下放置15分钟时，香蕉皮生物炭对渗滤液中镍的吸附效率为98.76%至98.96%，对铬的吸附效率为99.71%至99.77%；在35°C温度下放置45分钟时，对镍的吸附效率为99.07%至99.27%，对铬的吸附效率为99.71%至99.73%。香蕉皮生物炭对镍的最大吸附容量为1.15×10mg/g至5.27×10mg/g，对铬的最大吸附容量为1.05×10mg/g至6.76×10mg/g。由价格较低的香蕉皮制成的吸附剂能够经济高效地从垃圾渗滤液中去除镍和铬。为了更全面地了解该吸附剂的应用，应该开展更多利用香蕉皮作为吸附剂处理各种废物的吸附研究。
