Properties of anaerobic granular sludge in a thermophilic expanded granular sludge bed reactor

被引：0
|
作者：
Xie L. [1 ,2 ]
Zou Z. [1 ,2 ]
Zhou Q. [1 ,2 ]
Sun J. [1 ,2 ]
机构：
[1] State Key Laboratory of Pollution Control and Resources Reuse, Tongji University
[2] UNEP-Tongji Institute of Environment for Sustainable Development
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2010年 / 38卷 / 09期
关键词：
Cassava ethanol wastewater; Expanded granular sludge bed reactor; Granular sludge; Thermophilic temperature;
D O I：
10.3969/j.issn.0253-374x.2010.09.012
中图分类号：
学科分类号：
摘要：
This study investigates the properties of thermophilic anaerobic granular sludge in an expanded granular sludge bed for cassava ethanol wastewater treatment. Experimental results show that the average chemical oxygen demand (COD) removal efficiency and the average gas production are 86. 7% and 15. 1 L·d-1, respectively, with the influent organic loading rate (OLR) being maintained at 15.0 kg·m-3·d-1. Moreover, the OLR can be increased up to 24.0 kg·m-3·d-1 with the average COD removal efficiency and the average gas production being 88.5% and 33.9 L·d-1, respectively. With the increase of operation time, the granular ratio of anaerobic sludge increases and the granular sludge with diameter greater than 2.00 mm is 32%. The organic components in granular sludge are mainly C, H and N, and the inorganic components were mainly Si, P, Ca and Fe. The bacillus bacteria are predominant in the acclimation thermophilic sludge and the inner core of sludge is probably composed by the compound of calcium phosphate or calcium carbonate.
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页码：1319 / 1323
页数：4
相关论文
共 7 条
  • [1] Abreu A.A., Costa J.C., Araya-Kroff P., Et al., Quantitative image analysis as a diagnostic tool for identifying structural changes during a revival process of anaerobic granular sludge, Water Research, 41, 7, (2007)
  • [2] Peverea A., Guibauda G., Goina E., Et al., Effects of physical-chemical factors on the viscosity evolution of anaerobic granular sludge, Biochemical Engineering Journal, 43, 3, (2009)
  • [3] Guo X., Zhang Z., Study on the starting up of expanded granular sludge bed reactor for treating rise wine wastewater, Environmental Pollution & Control, 26, 2, (2004)
  • [4] Zhang Z., Zhou W., Lin R., Full-scale experiment on corn-ethanol production wastewater treatment with the thermophilic EGSB reactor, Environmental Science, 22, 4, (2001)
  • [5] Costa J.C., Moita I., Ferreira E.C., Et al., Morphology and physiology of anaerobic granular sludge exposed to an organic solvent, Journal of Hazardous Materials, 167, 1-3, (2009)
  • [6] Whang Y., Zuo J., Xiao J., A study on characteristic of anaerobic granular sludge in an EGSB reactor, China Biogas, 20, 4, (2002)
  • [7] Feng L., Wu J., Lu Z., Study on cultivation of thermophilic anaerobic granular sludge, China Biogas, 21, 3, (2003)
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