Cadmium being a heavy metal, which is also a known pollutant, had a wide variety of usage in many industries like electro-plating industries, phosphate fertilizers, batteries, mining, stabilizers, pigments, and alloys. In this study, sawdust was used to produce the nanocoated adsorbent. Sawdust is non-hazardous low-cost waste materials and easily available. Thermally activated biochar was produced from sawdust and coated with graphene oxide nanomaterials in two different methods, and the synthesized nanocomposite was used to remove cadmium present in solution. Batch study was performed to optimize different parameters for better removal. Experiments were performed and the best condition optimized for removal of cadmium was found to be pH 7.5 and temperature 35 °C or 308.15 K, with 1 g/L adsorbent dose, and within 2 h, i.e. 120 min, above 55.68 mg/g removal capacity was attained with initial metal concentration of 50 mg/L. The modified saw dust composite was more effective in removal of cadmium than the normal sawdust-based composites. The characterization of the nanocomposite was done to know the internal structure of the composite. The continuous fixed-bed column study was performed, and the study followed Admas–Bohart model. The batch and column study results showed that this nanocoated composite can be an alternative for the treatment of pollutant present in the solution. The regeneration of the composite showed a sustainable use of the composite for the treatment of pollutant.

镉是一种重金属，也是一种已知的污染物，在许多行业中都有广泛的用途，例如电镀行业，磷酸盐肥料，电池，采矿，稳定剂，颜料和合金。在这项研究中，锯末用于生产纳米涂层的吸附剂。木屑是无害的低成本废料，容易获得。由锯末产生热活化的生物炭，并用两种不同的方法将其涂覆在氧化石墨烯纳米材料上，然后使用合成的纳米复合材料去除溶液中的镉。进行批处理研究以优化不同的参数以更好地去除。进行了实验，发现优化去除镉的最佳条件是pH 7.5，温度35°C或308.15 K，吸附剂量为1 g / L，在55℃以上的2小时内（即120分钟）内。初始金属浓度为50 mg / L时，去除能力为68 mg / g。改性的锯末复合物比常规的锯末基复合物更有效地去除镉。进行了纳米复合材料的表征，以了解复合材料的内部结构。进行了连续固定床色谱柱研究，该研究遵循Admas–Bohart模型。批次和柱子研究结果表明，这种纳米涂层复合材料可以替代溶液中存在的污染物。复合材料的再生表明该复合材料可用于污染物的可持续利用。进行了纳米复合材料的表征，以了解复合材料的内部结构。进行了连续固定床色谱柱研究，该研究遵循Admas–Bohart模型。批次和柱子研究结果表明，这种纳米涂层复合材料可以替代溶液中存在的污染物。复合材料的再生表明该复合材料可用于污染物的可持续利用。进行了纳米复合材料的表征，以了解复合材料的内部结构。进行了连续固定床色谱柱研究，该研究遵循Admas–Bohart模型。批次和柱子研究结果表明，这种纳米涂层复合材料可以替代溶液中存在的污染物。复合材料的再生表明该复合材料可用于污染物的可持续利用。