摘要
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.
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.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2006年第7期1369-1372,共4页
Environmental Science
基金
国家高技术研究发展计划(863)项目(2004AA601050)
