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[A new discovery of anaerobic sludge granular with big aera minerals core].

Authors
  • Jiang, Han
  • Wang, Kai-Jun
  • Shi, Xian-Kui
  • Chen, Shu-Xiang
Type
Published Article
Journal
Wei sheng wu xue bao = Acta microbiologica Sinica
Publication Date
Dec 01, 2005
Volume
45
Issue
6
Pages
925–929
Identifiers
PMID: 16496705
Source
Medline
License
Unknown

Abstract

A anaerobic sludge granular containing mineral core with a diameter of 1mm was discovered in lab scale expanded granular sludge bed (EGSB) reactor operated only with glucose as substrate. By SEM, the granular was a core packed by compact bacterium, in which minerals distribute equally and there are caves caused by biological self-degradation. By energy spectrum and X-ray, the core is composed of Ca5 (PO4 x CO3)3 (OH). On the basis of its construction characteristics, the developing mechanism was investigated as well as the developing model of the sludge granular was present, the results shown that the contributing factors influencing mineral core formation are external and internal pH value of sludge granular.

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