Evalúa la remoción de fosfatos por un adsorbente elaborado a partir de cáscara de plátano de la variedad Bellaco a diferentes temperaturas de pirólisis y pH en solución acuosa. La cáscara de plátano de la variedad Bellaco de procedencia de Satipo se sometió a distintos tratamientos de carbonización a temperaturas de 500 ºC, 600 ºC y 700 ºC (P500, P600 y P700). Los adsorbentes se sometieron a experimentos de adsorción por lotes a distintos pH; en este proceso se elaboró una solución acuosa de 0,3 mg/L de fosfato, ajustando a pH de 4,0; 7,0 y 10,0 y se agregó el material adsorbente en una concentración de 1 g/L, se dejó reposando con agitación ocasional durante 168 horas a temperatura ambiente (23 °C en promedio). El fosfato al inicio del tratamiento y al término del tratamiento se cuantificó mediante espectrofotometría uv-visible. El adsorbente mostró la capacidad...

There are several investigations on the use of food waste to remove contaminants by adsorption. However, a simple route, without chemical activation reagents, is needed for the development of adsorbents. The aim of this study was to develop an adsorbent from plantain peel, using a simple procedure, and to evaluate its capacity to remove phosphate from aqueous solutions at phosphate concentrations similar to those of water sources at risk of eutrophication (0.30 mg/L). The simple pyrolysis method was used in an electric muffle, without chemical activation, using plantain peel as precursor. The variables evaluated were pyrolysis temperature and solution pH. The specific surface area BET, zero loading point of the developed treatments, was determined. Phosphate adsorption was studied in a batch experiment in the presence of calcium ions in solution. Phosphate adsorption was favorable at all...