Pollution of environmental waters and ecosystems is increasing. Adsorption is an effective technique for water decontamination, but is limited by the cost of commercial adsorbents such as activated carbon. Research has thus focused on the recycling and transformation of biowaste as low-cost, biodegradable adsorbents. In particular, banana peel is promising for commercial use due to its wide availability and efficiency. Here, we review the use of natural banana peel for the biosorption of pollutants from water. We discuss the factors controlling pollutants removal, and the regeneration and reuse of the biosorbent. pH of 5.0 to 7.0 is favorable for the removal of cationic pollutants, while pH of 2.0 to 4.0 is suitable for anionic pollutants. Generally, higher pollutant concentration induces lower removal, whereas higher banana peel dosage induces higher removal. Banana peel exhibits efficient removal of pollutants at various temperatures, with adsorption capacities mostly within 1–100 mg/g. Nitric acid is the most efficient eluent for heavy metal desorption from banana peel. Most studies showed efficient biosorbent reuse up to five cycles and above. We also discuss the thermodynamics, kinetics and isotherms of the adsorption process.

环境水域和生态系统的污染正在增加。吸附是用于水净化的有效技术，但是受到诸如活性炭之类的商业吸附剂成本的限制。因此，研究集中在作为低成本，可生物降解的吸附剂的生物废料的回收和转化上。特别地，香蕉皮由于其广泛的可用性和效率而有望用于商业用途。在这里，我们回顾了天然香蕉皮用于从水中生物吸附污染物的用途。我们讨论了控制污染物去除的因素，以及生物吸附剂的再生和再利用。pH值在5.0到7.0之间有利于去除阳离子污染物，而pH值在2.0到4.0之间则适用于阴离子污染物。通常，较高的污染物浓度会导致较低的去除率，而较高的香蕉皮用量会导致较高的去除率。香蕉皮在各种温度下均能有效去除污染物，其吸附能力通常在1-100 mg / g之内。硝酸是从香蕉皮中解吸重金属的最有效洗脱液。大多数研究表明，有效的生物吸附剂可重复使用多达五个循环以上。我们还将讨论吸附过程的热力学，动力学和等温线。