蒸汽闪爆处理对山羊毛及鸡毛吸附染色废水的影响

Effect of steam explosion treatment to goat hair and chicken feather on their adsorption properties to dyeing wastewater

以山羊毛、鸡毛为原料,采用蒸汽闪爆、冷冻粉碎处理方法制备得到闪爆粉碎山羊毛、鸡毛,并应用于吸附染色废水中活性蓝19染料(RB19)。对比研究了蒸汽闪爆、冷冻粉碎处理前后山羊毛、鸡毛吸附性能的变化。结果表明:原鸡毛(175 mg/g)吸附能力高于山羊毛(55.24 mg/g)的吸附能力。经过蒸汽闪爆、冷冻粉碎处理后,山羊毛、鸡毛的吸附量分别达到426.7、440.0 mg/g,闪爆粉碎山羊毛表面鳞片被破坏,闪爆粉碎山羊毛、鸡毛的结晶指数均下降,分别为8.6%、13.1%,闪爆粉碎山羊毛比表面积、BJH吸附孔累积比表面积、孔径体积是闪爆粉碎鸡毛的1.64、2.74、2.65倍。蒸汽闪爆、冷冻粉碎联合处理提高了山羊毛、鸡毛等废弃角蛋白对活性蓝19染料的吸附性能。

The goat hair and chicken feather was steam exploded,frozen and disintegrated and further used for the adsorption of reactive blue 19(RB19)dye.The effects of steam explosion,freezing and disintegration on the adsorption capacity of goat hair and chicken feather and their power were studied.As a result,the raw chicken hair(175 mg/g)had higher adsorption capacity than that of goat hair(55.24 mg/g);After steam flash explosion,freezing and disintegration,the scales of goat hair were broken,The crystallization indexes of EGHP and ECFP decreased,which were 8.6%and 13.1%,respectively,its specific surface area,BJH adsorption pore cumulative specific surface area and pore volume are 1.64,2.74,and 2.65 times of ECFP,respectively,their adsorption amount are 426.7 mg/g and 440 mg/g.The combined treatment of steam flash explosion,frozen and disintegration improved the adsorption performance of goat hair and chicken feather effectively on RB19,and its adsorption capacity for goat hair is improved significantly.