摘要
探讨纤维乙醇废水适宜的处理及资源化模式,为工业上处理纤维乙醇废水提供理论参考。采用UASB工艺处理纤维乙醇废水,分析进水化学需氧量(COD)浓度对COD去除率、出水pH值以及沼气产率的影响。结果表明,在中温(35±1)℃环境、进水COD浓度7 000mg/L条件下调节进水pH值为5.1时可满足试验要求,此时最佳的控制水力停留时间(HRT)为3d,在该条件下,COD去除率达到76%,沼气产量为20.1L/d,其中甲烷含量为60.45%。
The USAB process was introduced to treat cellulosic ethanol wastewater. The effects of influent COD concentration on COD removal rate,effluent pH, and biogas production rate were analyzed. The results showed that when the influent COD concentration was 7 000 mg/L, the influent water pH that met the requirement was 5.1,the optimum hydraulic retention time(HRT) was 3 d,under this condition COD removal rate reached 76%, and biogas production was 20. 1 L/d in which methane accounted for 60.45 %.
出处
《河南农业科学》
CSCD
北大核心
2014年第2期151-154,共4页
Journal of Henan Agricultural Sciences
关键词
纤维乙醇废水
厌氧发酵
UASB工艺
cellulosic ethanol wastewater
anaerobic fermentation
UASB process
作者简介
郑超(1987-),男,河南三门峡人,在读硕士研究生,研究方向:可再生能源利用技术。E—mail:zhengcha01022@126.com
通讯作者:马晓建(1953-),男,河南驻马店人,教授,主要从事化工及生化设备的研究与开发工作。E—mail:maxj@zzu.edu.cn