Anaerobic treatment of yeast effluent in an expanded granular sludge bed reactor

摘要：

The purpose of this study was to investigate the use of an anaerobic expanded granular sludge bed (EGSB) reactor, to treat high strength yeast wastewater. The EGSB reactor was seeded with granular sludge from the UASB reactor of a full-scale brewery factory. Experiment was done under operational condition of a total superficial upflow velodty(Vup) of 6mh-l, Temperature of 301 i,COD concentration of about 20 gL-1. Start-up of a step-wise manner was adopted. The volumetric organic loading (BV.TCOD) was increased progressively by varying flow of the influent, and extent of raising BV.TCOD should be less than 30％ at each step. After the start-up period of 79 days, the BV.TCOD of the EGSB reactor reached 15.8 kg COD m-3d-l, and obtained COD removal efficiency of 69.5％. The specific methanogenic activity of the sludge was about twice higher than that of the seeded sludge. The experimental results indicated that the anaerobic treatment of yeast effluent in an EGSB system appears to be a feasible option.

关键词： Anaerobic treatment Expanded granular sludge bed (EGSB) Yeast effluent methanogenic activity component

作者: YAN Zhi-yong WANG Jing-song XIE Lei

作者单位: School of Resources and Environment, Hunan Agricultural University, Hunan, Changsha 410128, China School of Urban Construction, University of South China Hunan, Hengyang 421001, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 219-222

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）