Paper Title:
Experimental Study on the Bio-Drying Characteristics and its Influencing Factors of Paper Mill Sludge
  Abstract

The bio-drying characteristics and its influencing factors of paper mill sludge (PMS) were investigated detailedly, by means of the heat generated by aerobic degradation of the organic substances in the PMS. In the orthogonal experiments, the good results were achieved with the followed optimization technics: starch (25.0g/500.0g), sawdust (40.0g/500.0g), inoculation (15.0mL/500.0g) and KH2PO4 (5.0g/500.0g). During bio-drying, the matrix temperature increased to 47.2°C within 12-24h rapidly under the given operation parameters, and the maximum was about 48.0°C. In the whole process the pH changed in the range of 6.11-7.87. The quantity of amylolytic bacteria reduced to the minimum in the first day, and the amylolytic bacteria grew well until the process of bio-drying finished. The ATP content was increased drastically in the first day and peaked in the fifth day, with the maximum ATP content was about 6.4×10-6μmol/g. When bio-drying of PMS was finished, the VS content and moisture content (MC) reduced from 58.4% to 49.5% and 62.2% to 50.3% respectively.

  Info
Periodical
Advanced Materials Research (Volumes 204-210)
Edited by
Helen Zhang, Gang Shen and David Jin
Pages
88-94
DOI
10.4028/www.scientific.net/AMR.204-210.88
Citation
X. A. Ning, Q. L. Chen, J. B. Zhou, Z. Y. Yang, J. Y. Liu, "Experimental Study on the Bio-Drying Characteristics and its Influencing Factors of Paper Mill Sludge", Advanced Materials Research, Vols. 204-210, pp. 88-94, 2011
Online since
February 2011
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Price
$32.00
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