摘要
本文报道用厌氧流化床反应器处理低浓度有机废水的可行性研究结果。采用多孔高分子载体固定厌氧微生物和流态化技术强化传质过程,可克服低浓度有机废水甲烷化能力低的障碍。实验表明,在35±1℃条件下,处理COD浓度为1600mg/L的人工葡萄糖废水,床层最优膨胀率为50%,容积有机负荷率为19.2gCOD/(L·d),COD去除率达70%;处理COD浓度为220~250mg/L的城市污水,容积有机负荷率为2.4~2.6gCOD/(L·d),COD去除率为54%~56%。
The achievability research result of treatment of low concentration organic wastewater with an anaerobic fluidized bed is reported. Using immobilization microbes on the porous polymer support and intensified process of mass transfer by fluidization technology, the obstructes of the low methane production at low concentration organic wastewater in the conventional method were surmounted. The experiment results showed that, under mesophilic digestion (35±1℃),when the substrate concentration of influent with synthetic glucose wastewater was 1600 mg COD/L ,the optimal expansion rate of bed, the volumetric organic loading rate and the COD removal rate was 50%, 19.2 gCOD/(L·d) and 70%,respectively. When the substrate concentration of influent with domestic sewage was 220~250 mgCOD/L,the volumetric organic loading rates and COD removal rates were 2.4~2.6g COD/(L.d) and 54%~56%, respectively.
出处
《中国沼气》
1998年第2期3-7,共5页
China Biogas
基金
国家自然科学基金
关键词
固定化微生物
厌氧流化床
膨胀率
低浓度废水
immobilization microbes, anaerobic fluidized bed,expansion rate, low concentration wastewater