Character and Model of Anaerobic Granular Sludge Formation in the Sanitary Landfill

Abstract:

The microbiological structure characteristic and the particle diameter distribution of different sludges (aerobic excess sludge, sludge from sanitary landfill digested for one year, and granular sludge of pilot-scale expanded granular sludge bed (EGSB) reactor after 400 d of operation) were analyzed through scanning electron microscopy (SEM), transmission electron microscopy (TEM) and sieve. SEM of granules showed that the microbiological structure of the sludge from different sources had differences. But TEM proved that granules of EGSB and landfill both had similar kind of bacterial species i.e. Methanosarcina bacteri sp. There were obvious differences in the transformation trend of size distribution between different granular sludges. Three-step Model for the anaerobic granular sludge formation in sanitary landfill was put forward.

• Periodical: Advanced Materials Research (Volumes 455-456)
• Pages: 1297-1302
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.455-456.1297
• Online since: January 2012
• Authors: Jin Wang, Zhen Jia Zhang, Li Na Chi
• Keywords: Anaerobic Sludge, Formation, Granulation, Model, Sanitary Landfill

References

[1] J.A.S. Goodwin, D.A.J. Wase and C.F. Forster, Pre-granulated seeds for UASB reactors: How necessary are they?, Bioresource Technology, Vol. 41, pp.71-79, (1992).

DOI: 10.1016/0960-8524(92)90101-3

[2] H. L. Xu and J.H. Tay Anaerobic granulation with methanol-cultured seed sludge, Journal of Environmental Science and Health-Part A, Vol. 37, p.85–94, (2002).

DOI: 10.1081/ese-100108484

[3] H. Ødegaard, B. Paulsrud and I. Karlsson, Wastewater sludge as a resource: Sludge disposal strategies and corresponding treatment technologies aimed at sustainable handling of wastewater sludge, Water Science and Technology, Vol. 46, no. 10, pp.295-303, (2002).

DOI: 10.2166/wst.2002.0358

[4] B. H. Guan, Z. B. Wu, Z. C. Wu, G. L. Xu and T. N. Tan, Biodegradability of terephthalic acid in terylene artificial silk printing and dyeing wastewater, Journal of Environmental Science, Vol. 15, no. 3, pp.296-301, (2003).

[5] R. Kleerebezem, J. Beckers, L.W. Hulshoff Pol and G. Lettinga, High rate treatment of terephthalic acid production wastewater in a two-stage anaerobic bioreactor, Biotechnology and Bioengineering, Vol. 91, no. 2, pp.169-179, (2005).

DOI: 10.1002/bit.20502

[6] American Public Health Association (APHA), American Water Works Association (AWWA), and Water Environment Federation (WEF), Standard methods for the examination of water and wastewater, 20th ed. Washington D.C., USA, (1999).

DOI: 10.1002/j.1551-8833.1932.tb18153.x

[7] Y. Ahn, Y. J. Lee, H. S. Kim and S. park, Monitoring of specific methanogenic activity of granular sludge by confocal laser scanning microscopy during start-up of thermophilic upflow anaerobic sludge blanket reactor, Biotechnology Letters, Vol. 22, no. 20, pp.1591-1596, (2002).

DOI: 10.1007/bf00172839

[8] Y. Liu, H. L. Xu, S. F. Yang and J. H. Tay, Mechanisms and models for anaerobic granulation in upflow anaerobic sludge blanket reactor, Water Research, Vol. 37, p.661–673, (2003).

DOI: 10.1016/s0043-1354(02)00351-2

[9] M. C. M. Van Loosdrecht, M. Henze, Maintenance, endogeneous respiration, lysis, decay and predation, Water Science and Technology, Vol. 39, no. 1, pp.107-117, (1998).

DOI: 10.2166/wst.1999.0024

[10] A. S. Kaprelyants and D. B. Kell, Do bacteria need to communicate with each other for growth?, Trends in Microbiology, Vol. 4, no. 6, pp.237-242, (1996).

DOI: 10.1016/0966-842x(96)10035-4

[11] Y. Saiki, S. Imabayashi, C. Iwabuchi, Y. Kitagawaa, Y. Okumurab and H. Kawamuraa, Solubilization of excess activated sludge by self-digestion, Water Research, Vol. 33, no. 8, pp.1864-1870, (1999).

DOI: 10.1016/s0043-1354(98)00408-4

[12] P. Griffith, The rate of death and predation in activated sludge systems incorporating anoxic zones, Proc BNR3 85-93, IAWQ Brisbane, 19.