Furfural is a toxic aromatic aldehyde that can cause a severe environmental problem especially the wastewater drone from petroleum refinery units. In the present work, a useless by-product from local furniture manufacturing industry sawdust was used as raw material for preparation of activated carbon which is chemically activated with phosphoric acid. The effect of adsorption variable which include The effect of volumetric flow rate (13, 38, 68) ml/min, the bed depth (0.03, 0.05, 0.09) m, the particle size (0.297, 0.595, 1.19) mm and initial furfural concentration (50, 150, 250) mg/1 on break through curve for fixed bed adsorption column were evaluated. A comparison was made when using commercial activated carbon and prepared activated carbon at the same operation conditions. The results obtained from experimental investigation show that in fixed bed column increasing the volumetric flow rate lead to fast removal of furfural and reducing breakthrough time. Also the breakthrough curve and breakthrough time increase with bed length and decrease volumetric flow rate. And decreasing with increasing furfural concentration and particle size. In the interval of (120) min the value of Ct / Co reach 0.911 and 0.931 for CAC and PAC Respectively. At the best condition, which obtained at volumetric flow rate 38 ml/min, bed depth 0.5 m, particle size 0.595 mm and initial furfural concentration 250 mg/1.
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机译：糠醛是一种有毒的芳香醛，可能导致严重的环境问题，尤其是来自石油炼油机组的废水无人机。在目前的工作中，来自当地家具制造业锯末的无用的副产品被用作制备用磷酸化学活化的活性炭的原料。吸附变量的影响包括体积流速（13,38,68）ml / mil / min，床深度（0.03,0.05,0.09）m，粒径（0.297,0.595,119）mm和初始糠醛的效果评价浓度（50,150,250）Mg / 1通过固定床吸附塔曲线进行突破。在相同操作条件下使用商业活性炭和制备的活性炭时，制备了比较。从实验研究中获得的结果表明，在固定床柱中，增加体积流量导致快速去除糠醛并降低突破时间。此外，突破曲线和突破时间随床长度的增加和减少体积流速。随着糠醛浓度和粒度的增加，减少。在（120）分钟的间隔中，CT / CO的值分别用于CAC和PAC的0.911和0.931。在最佳条件下，在体积流速38 ml / min，床深0.5米，粒径0.595mm，初始糠醛浓度250mg / 1。
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