Peanut husk, an agricultural waste is a precursor biomass veteran for chemical activation using phosphoric acid. The work deals with activation of peanut husk using phosphoric acid followed by its application. The effect of various parameters such as impregnation ratio, temperature, particle size and agitation speed on copper adsorption were also studied. Physical characterization of the activated adsorbent was done using SEM, BET and FTIR to understand the modifications. The optimum parameter values of chemical activation influencing adsorption were 20% phosphoric acid concentration, 1:8 acid impregnation ratio, 60 °C activation temperature and 350 rpm stirring speed. The copper uptake was 14.3 mg/g for peanut husk whereas by chemical activation it was increased to 17.88 mg/g. Thus adsorption capacity of peanut husk can be successfully improved using phosphoric acid activation.

花生壳是一种农业废弃物，是使用磷酸进行化学活化的生物质前驱体。这项工作涉及使用磷酸激活花生果壳，然后再进行应用。还研究了浸渍率，温度，粒度和搅拌速度等各种参数对铜吸附的影响。使用SEM，BET和FTIR对活化的吸附剂进行物理表征，以了解其修饰。影响吸附的化学活化的最佳参数值是20％的磷酸浓度，1：8的酸浸渍率，60°C的活化温度和350 rpm的搅拌速度。花生壳的铜吸收量为14.3 mg / g，而通过化学活化将其提高至17.88 mg / g。