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Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology Volume 30, 1995 - Issue 8
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Environmental science and engineering

Freeze/thaw treatment on waste activated sludge: A FTIR spectroscopic study

S. G. Hong Department of Chemical Engineering, Yuan‐Ze Institute of Technology, Taoyuan, Taiwan, ROC
,
J. D. Young Department of Chemical Engineering, Yuan‐Ze Institute of Technology, Taoyuan, Taiwan, ROC
,
G. W. Chen Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC
,
I. L. Chang Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC
,
W. T. Hung Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC
&
D. J. Lee Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC
Pages 1717-1726 | Received 27 Mar 1995, Published online: 15 Dec 2008
 
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Abstract

The original and the treated activated sludge samples and the ECPs extracted from the original sludge were analyzed via FTIR spectra. A characteristic band near 670 cm‐1 was found to have a strong correlation with the sludge dewaterability and settleability, and was proposed as an indicator for sludge performance. Possible mechanism for freeze/thaw treatment was also discussed.

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