The textile industry produces enormous volumes of wastewater which must be treated effectively. In this study, biosorbent from the agricultural waste of potato peels (PP), which is environmentally friendly and easy to find everywhere, was used for the treatment of real textile wastewater. Physical modification, chemical activation, bio-hybrid and high-pressure modification processes were applied to PP to investigate the organic pollutant removal (chemical oxygen demand (COD)) and inorganic (Fe²⁺, Ni²⁺, Cu²⁺ and Cd²⁺) from original textile wastewater. Additionally, the effects of contact time (5, 15, 30, 60, 120, and 1440 min) and particle sizes (1.5–1.0 mm, 1.0–0.5 mm, and smaller than 0.5 mm in diameter) were investigated in a batch treatment system. Application of the physical modification process to PP presented an attractive solution for COD removal efficiency (69.50%) and removal efficiencies for four divalent metal ions; 78.6% for Cu²⁺, 63.6% for Ni²⁺, 40% for Fe²⁺, and 34.6% for Cd²⁺. FT-IR, SEM, and EDX analysis were performed to reveal the adsorption mechanism of the modified adsorbents. The FT-IR results indicate that the adsorption process fits the chemical and physical removal mechanisms, which were also supported by SEM images and EDX results.

中文翻译：

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改性农业废料对直接纺织废水中污染物去除的直接适用性研究

纺织工业产生大量废水，必须对其进行有效处理。在这项研究中，马铃薯皮（PP）的农业废料中的生物吸附剂对环境友好，在任何地方都很容易找到，被用于处理真正的纺织废水。对聚丙烯进行了物理改性，化学活化，生物混合和高压改性工艺，以研究有机污染物（化学需氧量（COD））和无机污染物（Fe 2 ⁺，Ni 2 ⁺，Cu ²⁺和Cd ²）的去除⁺）从原始纺织废水中提取。此外，在分批处理中研究了接触时间（5、15、30、60、120和1440分钟）和粒径（1.5-1.0 mm，1.0-0.5 mm和直径小于0.5 mm）的影响。系统。物理改性工艺在PP上的应用为COD去除效率（69.50％）和四种二价金属离子的去除效率提供了一个有吸引力的解决方案。Cu ²⁺占78.6％，Ni ²⁺占63.6％，Fe ²⁺占40 ％，Cd ²⁺占34.6％。进行了FT-IR，SEM和EDX分析，揭示了改性吸附剂的吸附机理。FT-IR结果表明吸附过程符合化学和物理去除机理，这也得到SEM图像和EDX结果的支持。