Taqui Syed Noeman, Syed Usman Taqui, Mir Rayees Afzal, Syed Akheel Ahmed, Ukkund Shareefraza J, Deepakumari Hemavathi Nagaraju, Al-Mansour Abdullah I, Alam Shamshad, Berwal Parveen, Majdi Hasan Sh
Department of Studies in Chemistry, Bharathi College - Post Graduate and Research Centre Bharathi Nagara 571422 Karnataka India
Department of Chemistry, Faculty of Science and Technology, LAQV-REQUIMTE, Universidade NOVA de Lisboa 2829-516 Caparica Portugal
RSC Adv. 2024 Aug 22;14(36):26464-26483. doi: 10.1039/d4ra03796k. eCollection 2024 Aug 16.
We used Nutraceutical Industrial Coriander Seed Spent (NICSS), a readily available, cheap, eco-friendly, and ready-to-use material, as an innovative adsorbent for the bioremediation of a bisazo Acid Red 119 (AR 119) dye, which is likely a mutagen from textile industrial effluents (TIE). A laboratory-scale experiment was tailored to demonstrate the framework of the circular economy (CE) in the remediation of textile dyes using Nutraceutical Industrial Spent to align with the principles of sustainability and valorization. An experimental value of 97.00 mg g was obtained. For the practicality and effectiveness of the method, a two-level fractional factorial experimental design (FFED) was employed to determine variables that influence the adsorption capacity of NICSS. At optimal settings (pH of 1.4, adsorbent dosage of 6.000 g L, adsorbent particle size of 96 μm, initial dye concentration of 599 mg L, adsorption duration of 173 min, orbital shaking speed of 165 rpm, and temperature of 35 °C), the maximum adsorption efficiency achieved through statistical optimization was 614 mg g. Six factors influencing the adsorption process were examined experimentally and were considered important for commercialization. Three orders of magnitude were applied to the identified variables in scaling experiments. Adsorption-equilibrium data were analyzed using nine isotherm models. The best fit was discovered to be the Vieth-Sladek adsorption isotherm model. The suitable mechanism for the overall rate of the adsorption process was a pseudo-second-order reaction: mass-transfer mechanistic studies were predicted to predominate over the diffusion process. NICSS was characterized using SEM and FTIR spectroscopy. Utilizing plastic trash, the dye-adsorbed NICSS that was recovered as "sludge" was utilized as a reinforcing material to create composites. Dye-adsorbed NICSS thermoplastic and thermoset composites were studied and compared with NICSS composites in terms of their physicomechanical and chemical properties.
我们使用了营养保健品工业用芫荽籽废渣（NICSS），这是一种易于获取、价格低廉、环保且即用型的材料，作为一种创新吸附剂用于双偶氮酸性红119（AR 119）染料的生物修复，该染料可能是纺织工业废水（TIE）中的诱变剂。开展了一项实验室规模的实验，以展示在使用营养保健品工业废渣修复纺织染料过程中循环经济（CE）的框架，使其符合可持续性和增值原则。获得的实验值为97.00 mg/g。为了该方法的实用性和有效性，采用了二级分式析因实验设计（FFED）来确定影响NICSS吸附容量的变量。在最佳设置（pH为1.4、吸附剂用量为6.000 g/L、吸附剂粒径为96 μm、初始染料浓度为599 mg/L、吸附持续时间为173分钟、轨道振荡速度为165 rpm以及温度为35℃）下，通过统计优化实现的最大吸附效率为614 mg/g。对影响吸附过程的六个因素进行了实验研究，并认为这些因素对商业化很重要。在放大实验中对确定的变量应用了三个数量级。使用九个等温线模型分析了吸附平衡数据。发现最佳拟合为维特 - 斯拉德克吸附等温线模型。吸附过程总速率的合适机制是伪二级反应：预计传质机理研究比扩散过程更占主导。使用扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）对NICSS进行了表征。利用塑料垃圾，将回收的作为“污泥”的吸附染料的NICSS用作增强材料来制备复合材料。研究了吸附染料的NICSS热塑性和热固性复合材料，并在物理机械和化学性能方面与NICSS复合材料进行了比较。
