Industrial latex sludge as raw material was made into sulfonated latex sludge (SLS) and latex sludge active carbon (LSC) adsorbents by sulfonate and pyrolysis treatment to remove textile dye cationic blue X-GRRL from aqueous solution. The adsorption properties of SLS and LSC for X-GRRL were studied and compared by investigating the experimental parameters such as adsorbents dosage, pH, contact time and initial concentration. The kinetics of adsorption on SLS and LSC followed the pseudo-second-order kinetic model well. The adsorption isotherm and thermodynamic studies were further used to evaluate and compare the adsorption process of X-GRRL on SLS and LSC. The maximum adsorption capacities were 1219.6 mg/g for SLS and 476.2 mg/g for LSC according to the Langmuir model, respectively. These findings not only provide a sustainable strategy to turn industrial solid waste latex sludge into useful material for environment remediation, but also develop an efficient adsorbent for the treatment of dye wastewater.

中文翻译：

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工业乳胶污泥磺酸盐与热解处理对阳离子染料吸附的对比研究

以工业乳胶污泥为原料，通过磺酸盐和热解处理制成磺化乳胶污泥（SLS）和乳胶污泥活性炭（LSC）吸附剂，去除水溶液中的纺织染料阳离子蓝X-GRRL。通过考察吸附剂用量、pH、接触时间和初始浓度等实验参数，研究和比较了SLS和LSC对X-GRRL的吸附性能。SLS 和 LSC 上的吸附动力学符合准二级动力学模型。吸附等温线和热力学研究进一步用于评估和比较 X-GRRL 在 SLS 和 LSC 上的吸附过程。根据朗缪尔模型，SLS 的最大吸附容量分别为 1219.6 mg/g 和 LSC 的最大吸附容量为 476.2 mg/g。