水葫芦气囊预处理黄姜皂素废水的实验研究

研究了利用水葫芦(Eichhornia crassipe)的气囊对皂素生产废水进行预处理的效果.对比实验结果表明:干燥的水葫芦气囊在吸附处理综合皂素废水8h后氯离子浓度降低10%,色度降低97.2%,pH值从1.09升高到1.26左右,COD降低率为20%.经水葫芦预处理吸附后皂素废水可生化性提高,厌氧反应产气速率提高1.5倍左右,有利于皂素废水的后续生化处理.经过吸附处理后的水葫芦气囊自身的产气效率也有所提高,为提高水葫芦堆肥的效果提供了一定实验依据.

Study on Pretreatment of Saponin Wastewater by Water Hyacinthy

The pretreatment of the saponin wastewater by water hyacinth(Eichhornia crassipe) was studied.With contrast experiments,the results indicate that after 8 h adsorption by the dry air cells of water hyacinth,the concentration of chlorine ion in the saponin wastewater reduce 10%,chroma reduce 97.2%,pH change from 1.09 to 1.26,COD removal efficiency is 20%.The results indicate that the pretreatment process can improve biodegradability of the saponin wastewater,the biogas rate is 1.5 multiple than before,resulting in the benefit to the follow-up biological treatment.After the adsorption,water hyacinth biogas fermenting also improvement which is used for improve the effect of fermentative.