Increasing industrialization creates a large scale of pollution and affects the availability of usable water. Dyes in wastewater are a visible pollutant, difficult to treat, and are toxic in nature. Amongst all the physicochemical methods, adsorption is the extensively applied process for the aqueous removal of dye. In the present study; the Bagasse Fly Ash (BFA) is used as an adsorbent for aqueous removal of Acid Orange dye in packed bed adsorption technique. The packed bed studies for different bed heights, influent concentration and flow rate are performed. The efficacy of packed columns is investigated using different models namely Bed depth service time, Thomas, Wolborsaka, Yoon-Nelson, and Bohart-Adams Models. The maximum adsorption capacity of BFA for 50% saturation of column is calculated to be 38 (mg/g) which shows BFA as a good adsorbent for dye removal.

中文翻译：

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使用甘蔗渣飞灰去除酸性橙 7 染料的吸附柱研究

日益工业化会造成大规模污染并影响可用水的供应。废水中的染料是一种可见的污染物，难以处理，并且本质上是有毒的。在所有的物理化学方法中，吸附是一种广泛应用的去除染料水溶液的方法。在目前的研究中; 甘蔗渣飞灰 (BFA) 在填充床吸附技术中用作去除酸性橙染料的吸附剂。对不同床高、进水浓度和流速的填充床进行了研究。使用不同的模型研究填充柱的功效，即床层深度服务时间、Thomas、Wolborsaka、Yoon-Nelson 和 Bohart-Adams 模型。