厌氧升流式污泥床反应器处理维生素C废水  

Treatment of vitamin C wastewater using upflow anaerobic sludge blanket(UASB) reactor

作　　者：史荣久[1,2] 徐慧[1] 张颖[1] 陈冠雄[1] 张成刚[1] 

机构地区：[1]中国科学院陆地生态过程重点实验室,中国科学院沈阳应用生态研究所,沈阳110016 [2]中国科学院研究生院,北京100039

出　　处：《哈尔滨工业大学学报》2008年第4期555-558,共4页Journal of Harbin Institute of Technology

基　　金：国家重点基础研究发展计划资助项目(973-2004CB418505);中国科学院研究生科学与社会实践创新研究专项资助项目(2005)

摘　　要：为提高维生素C(Vc)生产废水的处理效率,探索其厌氧生物处理的可行性,采用2.2 L实验室规模的中温厌氧升流式污泥床反应器(UASB)在150 d试验周期内对其在处理Vc生产废水中的可行性及最佳运行参数进行探索.结果表明,以厌氧消化池污泥作为接种污泥,UASB反应器在65 d内启动成功.反应器运行稳定期间,进水COD质量浓度约为10000 mg/L,COD去除率达92%,其平均容积负荷达10.8 kg/(m3.d),相应的水力停留时间为15 h.反应器的产CH4速率为3.2 m3/(m3.d),产生的沼气中CH4含量为72%.所去除COD的89%被转化成CH4.污泥的VSS/TSS比率由接种期的0.41升高到0.82.污泥产甲烷活性由启动初期的0.18升高至0.85 L/(gVSS.d)并保持稳定.In order to improve the efficiency and evaluate the feasibility of anaerobic digestion for treatment of vitamin C wastewater. A 2.2 L lab-scale mesophilic UASB reactor was investigated over 150 d for the treatment of vitamin C wastewater with optimized running parameters. With inoculation of pre-incubated sludge, successful startup of the reactor was achieved within 65 days at 35 ℃. During the steady - state, undiluted wastewater with a chemical oxygen demand （COD） of 10000 mg/L was fed. The corresponding organic load- ing rate （OLR） and hydraulic retention time （HRT） were 10. 8 kg/（m^3·d） and 15 h respectively. Up to 92% of COD was removed and the CHa production rate of 3.2 m^3/（ m^3·d） was obtained. The produced biogas contained 72% of CHa. The VSS/TSS ratio of the sludge was improved from 0.41 to 0. 82, while the specific methanogenic activity increased from 0. 18 to 0.85 L/（ gVSS · d） respectively at the beginning of the reactor startup towards the end of the experimental period.

关 键 词：UASB 维生素C生产废水 容积负荷 产甲烷活性 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]