【摘要】 对原始粉煤灰进行了酸性改性,制备了酸改性粉煤灰,并用其对印染废水进行脱色处理。研究了粉煤灰及酸改性粉煤灰的投加量(质量浓度)、反应pH值、反应时间等因素对印染废水脱色效果的影响。实验结果表明:用原始粉煤灰对染料废水进行脱色处理,在粉煤灰投加量为50 g/L,反应时间为40 min,pH值为10的最佳反应条件下,脱色效率为63.45%。用盐酸改性粉煤灰对染料废水进行脱色处理,在酸改性粉煤灰投加量为25 g/L,反应时间为10 min,pH值为10时,最佳脱色效率达到88.73%。更多还原

【Abstract】 Focusing on the effect of dye-printing wastewater treatment with raw fly ash and modified fly ash,the influences of various factors on the reactions were studied.The proper reaction conditions were obtained.The experimental results show that the decolorization rate of dyeing wastewater with raw fly ash only reaches 63.45% under the optimal condition that pH is 10,the input mass concentration of raw fly ash is 50 g/L,and the reaction time is 40 min.The optimal decolorization rate of dyeing wastewater with hydrochloric acid-modified fly ash can reach 88.73% under the optimal condition that pH is 10,the input mass concentration of raw fly ash is 25 g/L,and the reaction time is 10 min.更多还原