Wastewater treatment is of great concern in the textile industries because dyes, which are released into wastewater, are stable due to their structures and that some of the existing conventional techniques are not effective for aqueous removal of dyes. Among the advanced techniques for treatment of industrial effluents, adsorption is one of the most effective processes for removal of dyes from industrial wastewater. Similarly, activated carbons from different sources have been successfully applied as adsorbents for dye removal from aqueous solutions. In this context, this research evaluated the performance of activated carbon produced from peach pit (APC-1.0) for removal of a textile dye, Procion Red MX-5B (PR-5B), through batch adsorption process. The characteristic features of the peach activated carbon were obtained through Fourier transforms infrared spectroscopy, and scanning electron microscopy. The effectiveness of the activated to remove PR-5B from aqua system was compared with that of commercial activated carbon (CAC). In the kinetic study, the contact time was evaluated between 0 and 480 min using two different initial concentrations. Adsorption isotherms of PR-5B onto the two adsorbents were investigated in six different temperatures (298–326 K). The thermodynamic parameters of the process indicated spontaneous and exothermic adsorption. Equilibrium data were best described by Liu isotherm model with maximum removal capacities of 297.2 and 174.0 mg g⁻¹ for APC-1.0 and CAC, respectively.

中文翻译：

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使用自制的桃子和市售活性炭从水溶液中吸附Procion Red MX-5B染料

废水处理在纺织工业中引起极大关注，因为释放到废水中的染料由于其结构而稳定，并且一些现有的常规技术对于水相去除染料无效。在处理工业废水的先进技术中，吸附是从工业废水中去除染料的最有效方法之一。同样，来自不同来源的活性炭已成功地用作吸附剂，用于从水溶液中去除染料。在这种情况下，这项研究评估了桃核（APC-1.0）产生的活性炭通过间歇吸附过程去除纺织染料Procion Red MX-5B（PR-5B）的性能。通过傅里叶变换红外光谱和扫描电子显微镜获得了桃活性炭的特征。将活性剂从水系统中去除PR-5B的功效与商业活性炭（CAC）的功效进行了比较。在动力学研究中，使用两种不同的初始浓度评估了0至480分钟之间的接触时间。在六个不同的温度（298–326 K）下研究了PR-5B在两种吸附剂上的吸附等温线。该过程的热力学参数表明自发和放热吸附。Liu等温模型最能描述平衡数据，最大去除量为297.2和174.0 mg g 将活性剂从水系统中去除PR-5B的功效与商业活性炭（CAC）的功效进行了比较。在动力学研究中，使用两种不同的初始浓度评估了0至480分钟之间的接触时间。在六个不同的温度（298–326 K）下研究了PR-5B在两种吸附剂上的吸附等温线。该过程的热力学参数表明自发和放热吸附。Liu等温模型最能描述平衡数据，最大去除量为297.2和174.0 mg g 将活性剂从水系统中去除PR-5B的功效与商业活性炭（CAC）的功效进行了比较。在动力学研究中，使用两种不同的初始浓度评估了0至480分钟之间的接触时间。在六个不同的温度（298–326 K）下研究了PR-5B在两种吸附剂上的吸附等温线。该过程的热力学参数表明自发和放热吸附。Liu等温模型最能描述平衡数据，最大去除量为297.2和174.0 mg g 该过程的热力学参数表明自发和放热吸附。Liu等温模型最能描述平衡数据，最大去除量为297.2和174.0 mg g 该过程的热力学参数表明自发和放热吸附。Liu等温模型最能描述平衡数据，最大去除量为297.2和174.0 mg g^-1分别用于APC-1.0和CAC。