The presented work assesses the sorptive efficacy of acid and base activated biochar engineered from bio-waste tropical almond shells for eradicating Ibuprofen (IBP) from aqueous media. Adsorbents were characterized by proximate, FTIR and SEM analyses. Impact of various parameters like IBP concentration, pH, agitation speed, sorbent dose, interaction time and temperature on sorptive expulsion were studied using experiments focussed on elucidating optimal conditions. Batch sorption and optimization studies using central composite design revealed that highest IBP removal of 92.46% and 92.8% respectively using TABAB were attainable with a 15 mg/L initial IBP solution containing 3.33 g/L adsorbent dose at pH 2 under 35 °C within 6 h at 150 rpm. Performance of IBP sorptive removal was verified by linearized and non-linearized approaches on kinetic and isotherm models. Langmuir isotherm model was the best fit with maximum adsorption capacities of 2.794 mg/g and 8.77 mg/g under acid activation for linear and non-linear analyses respectively while noted adsorption capacities under base activation were 2.914 mg/g and 9.52 mg/g for linear and non-linear analyses respectively. A pseudo second order kinetic model best fits the findings from both analyses. Thermodynamic studies suggested a randomness with exothermic nature of the viable removal process. With both biochar showing effective reusability for 4-5 cycles, estimated preparation costs were an approximated 0.24 INR for treating 1 L of solution with optimal IBP concentration. Consequently, modified adsorbents obtained from tropical almond shell char can be used as cost-effective adsorbents for IBP removal.

提出的工作评估了酸和碱活化的生物炭对生物废料热带杏仁壳的吸收对从水性介质中清除布洛芬（IBP）的吸收效果。吸附剂通过近红外，FTIR和SEM分析进行表征。使用旨在阐明最佳条件的实验研究了IBP浓度，pH，搅拌速度，吸附剂剂量，相互作用时间和温度等各种参数对吸附性驱除的影响。使用中央复合设计的批量吸附和优化研究表明，在35°C下于6°C下于pH 2下使用15 mg / L初始IBP溶液（吸附剂剂量为3.33 g / L）可分别获得最高的IBP去除率（92.46％和92.8％）。 h在150 rpm下。通过动力学和等温线模型的线性化和非线性方法验证了IBP吸附去除的性能。Langmuir等温模型最适合，酸活化作用下线性和非线性分析的最大吸附容量分别为2.794 mg / g和8.77 mg / g，而碱活化作用下的最大吸附容量分别为2.914 mg / g和9.52 mg / g。线性和非线性分析。拟二阶动力学模型最适合两种分析的结果。热力学研究表明，可行去除过程具有放热性质的随机性。两种生物炭均显示4-5个周期的有效可重复使用性，用最佳IBP浓度处理1 L溶液时，估计的制备成本约为0.24 INR。所以，