Paper Title:
Conditions Influencing Struvite Precipitation from Anaerobic Sludge Digestion Filtrate in a Batch Reactor
  Abstract

Struvite precipitation in sludge dewatering filtrate was achieved in a lab-scale sequencing batch reactor. The influence of the operational conditions on the struvite precipitation process has been studied. These operational conditions include stirring rate of the reactor, reaction time and sedimentation time. Experiments indicated that stirring rate of the reactor within 50 rpm to 250 rpm had no strong influence on the formation of struvite. As reaction time increased, there was a slight positive effect on the removal of Mg2+, NH4+ and PO43-. Suggested reaction time is 40-80 minutes based on our experiments. In order to obtain the lower turbidity and the lower PO43- concentration in the decanting filtrate of the batch reactor, the minimum sedimentation time should be more than 30 minutes.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
1432-1436
DOI
10.4028/www.scientific.net/AMR.183-185.1432
Citation
X. S. Cao, X. Z. Meng, Y. Z. Wang, "Conditions Influencing Struvite Precipitation from Anaerobic Sludge Digestion Filtrate in a Batch Reactor", Advanced Materials Research, Vols. 183-185, pp. 1432-1436, 2011
Online since
January 2011
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Price
$35.00
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