两相UASB反应器处理木薯淀粉废水的启动运行特性研究  

A Research on Treatment of Cassava Starch Wastewater Using Two-Phase Upflow Anaerobic Sludge Blanket(UASB)

作　　者：冼萍[1] 潘正现[1] 钟莉莹[1] 

机构地区：[1]广西大学化学化工学院

出　　处：《上海环境科学》2005年第4期156-159,共4页Shanghai Environmental Sciences

摘　　要：采用两段UASB厌氧反应器为主体的工艺处理木薯淀粉废水，在温度为20℃左右，进水为CODcr6000-8000mg／L反应条件下二次启动，经过33d的运行，两段厌氧处理CODcr去除率累计达85％以上，出水CODcr为400-800mg／L。实验结果表明，甲烷段是整个反应器启动的控制阶段，只要控制好各反应器的运行参数，便能很好达到两相分离的目的。Abstract A process with two-phase upflow anaerobic sludge blanket （UASB） as a principal unit was used to treat cassava starch wastewater. At a temperature of about 20℃ and influent COD concentration of 6,000-8,000mg/L, through twice start-ups and 33 days＇ run, a cumulative removal rate of the two-phase anaerobic treatment could be up to 85% and the COD concentration in the effluent was reduced to about 400-800mg/L. The experiment has shown that methanogenic phase was the controlling step to the secondary start-up of the UASB. The separation of acid generating phase and methanogenic phase could be well obtained as long as individual operational parameters had been under control.

关 键 词：上流式厌氧污泥床反应器 木薯淀粉废水 产酸段 甲烷段 

分 类 号：X703.3[环境科学与工程—环境工程] X792