木炭(活性炭)脱色效率的研究

Study on Decolorization Efficiency of Charcoal (Activated Carbon)

食醋中醋酸量的测定实验在一些大学与中学教材中都有安排,但陈醋由于颜色深,活性炭脱色效率不高,严重影响实验的进行。通过实验系统研究了市售活性炭、自制锯末活性炭、竹子活性炭、花生壳活性炭、熟骨头活性炭、核桃壳活性炭对陈醋的脱色效率。结果表明:给陈醋脱色时,活化后的市售活性炭效率最高,自制竹子活性炭次之,可以代替市售活性炭使用,值得自制与推广;脱色时振荡比不振荡要好;被脱色液体的体积大小与脱色剂量的比例恰当时,脱色效率最高;脱色后的液体经离心机离心分离可以快速获得无色澄清液体。

The experiment of determination of acetic acid in vinegar has been arranged in some university and high school textbooks.But because of the deep color of the aged vinegar,the decolorization efficiency of activated carbon is low,which seriously affects the progress of the experiment.The decolorization efficiency of commercial activated carbon,self-made sawdust activated carbon,bamboo activated carbon,peanut shell activated carbon,cooked bone activated carbon and walnut shell activated carbon for aged vinegar were studied systematically.The results showed that:when decolorizing aged vinegar,the activated commercial activated carbon had the highest efficiency,and the self-made bamboo activated carbon was slightly inferior to the former;in decolorization,oscillation was better than non-oscillation;the decolorization efficiency was the highest when the volume of the decolorized liquid was in proper proportional to the decoloring agent;the colorless clear liquid could be obtained quickly by centrifugation.