Four agricultural wastes, i.e., sugarcane bagasse, rice straw, cotton stalk, and corn stalk were experienced as low-cost lignocellulosic materials for their ability to adsorb reactive red dye from its contaminated solutions. Batch adsorption technology was carried out in order to analyze sorption behavior of dye-adsorbent systems at different wastes, initial dye concentration, and solution pH value. The acid pH treatment was detected to significantly enhance the adsorption efficiency of used lignocellulosic wastes to maximum removal efficiency (96%). Bioreactor technology was applied as up-scaling experiments using sugarcane bagasse (SCB) waste (the best adsorbent under batch experiments) with different adsorbent dosage and flow rates. The maximum removal efficiency (89.65%) was recorded by 448 g of SCB waste, hydraulic retention time of 24 h and 12.6 l/h flow rate. The SEM characterization illustrated accumulation of dye molecules onto lignocellulosic structure. Also, elemental analyses by EDAX instrument confirmed absorption technology. Thus, the sugarcane bagasse wastes can be applied as low-cost and environmental safe absorbent for RR dye removal from its contaminated wastewater and introducing non-traditional water resource.

低成本的木质纤维素材料经历了四种农业废料，即甘蔗渣，稻草，棉秆和玉米秸秆，因为它们能够从被污染的溶液中吸附活性红色染料。为了分析染料吸附系统在不同废物，初始染料浓度和溶液pH值下的吸附行为，进行了批量吸附技术。检测到酸性pH处理可显着提高用过的木质纤维素废料的吸附效率至最大去除效率（96％）。使用具有不同吸附剂剂量和流速的甘蔗渣（SCB）废料（分批实验中最好的吸附剂）将生物反应器技术应用于规模化实验。448 g的SCB废物记录了最大去除效率（89.65％），液压保持时间为24小时，流速为12.6升/小时。SEM表征说明了染料分子在木质纤维素结构上的积累。此外，EDAX仪器的元素分析证实了吸收技术。因此，甘蔗渣废料可以用作低成本和环境安全的吸收剂，用于从受污染的废水中去除RR染料并引入非传统水资源。