In the current study, the sorptive potency of raw biochar (TRB) and chemically activated biochar (TCAB) derived from waste precursor tamarind seed was examined to eliminate pharmaceutical micropollutant ibuprofen (IBP) in aqueous media. Considered parametric conditions towards sorptive IBP removal were contact period (1–24 h), pH (1–7), initial concentration (1–50 mg/l), adsorbent dose (0.033–6.66 g/l), agitation speed (100–180 rpm) and temperature (15–45 °C) for both TRB and TCAB. The sorptive efficacy of TRB and TCAB was well characterized by FTIR, SEM and EDAX analysis. The removal process was optimized using central composite design (CCD) with 2⁴ full-factorial approach. Adsorption equilibrium study signified that this technique conformed to Langmuir isotherm, and the kinetic study indicated that the best fit model was of a pseudo-second order for both biochars. Thermodynamic studies revealed the exothermic nature of adsorption. After the repeated usage of sorbents in multiple cycles, they proved proficiencies in effective application. The cost estimation of engineered adsorbents was found to be apposite towards commercial utilization. The maximum removal percentage for TRB and TCAB was 72.29% at 40 °C and 95.44% at 35 °C temperature respectively for 3-h contact duration. Thus, the sorptive exclusion of IBP from aqueous media could be achieved using biochar made from tamarind seeds.

在当前的研究中，研究了源自废前体罗望子种子的原始生物炭（TRB）和化学活化生物炭（TCAB）的吸附能力，以消除水性介质中的药物微污染物布洛芬（IBP）。除去IBP的吸附性考虑的参数条件是接触时间（1–24 h），pH（1–7），初始浓度（1–50 mg / l），吸附剂剂量（0.033–6.66 g / l），搅拌速度（100 – TRB和TCAB都为–180 rpm）和温度（15–45°C）。FTIR，SEM和EDAX分析对TRB和TCAB的吸附效果进行了很好的表征。使用2 ^4的中央复合设计（CCD）优化了去除过程全析因方法。吸附平衡研究表明该技术符合Langmuir等温线，动力学研究表明两种生物炭的最佳拟合模型均为伪秒级。热力学研究揭示了吸附的放热性质。在多次重复使用吸附剂后，它们被证明具有有效应用的能力。发现工程吸附剂的成本估算适合于商业用途。在3小时的接触时间内，TRB和TCAB的最大去除率分别在40°C和35.C温度下分别为72.29％和95.44％。因此，使用罗望子种子制成的生物炭可以实现IBP从水性介质中的吸附排斥。