Title page for etd-0116115-134330


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URN etd-0116115-134330
Author Yen-Jung Lin
Author's Email Address aqueena82311@yahoo.com.tw
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Department Environmental Engineering
Year 2014
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Enhanced Dewatering of Municipal Sewage Sludge by Application of Advanced-Oxidation Conditioning and Plate-and-Frame Filter Press Electrodewatering
Date of Defense 2015-01-29
Page Count 127
Keyword
  • Plate and frame filter press
  • Electrodewatering
  • Hydrogen peroxide
  • Sodium persulfate
  • Sludge conditioning
  • Advanced oxidation processes
  • Biological municipal sludge
  • Abstract The objective of this study was to condition the biological municipal sludge by using hydrogen peroxide or sodium persulfate catalyzed with persulfate, and combine the Plate-and-Frame filter press electro dewatering to evaluate the dewatering performance. The final the moisture contents of sludge cakes, sample size, electric field and the costs of sludge cake were also analyzed. The results showed that under the Plate-and-Frame filter press dewatering, the moisture contents of sludge cakes were decreasing to 45% and 55% conditioning by hydrogen peroxide and sodium persulfate respectively, and the CST of the biological municipal sludge were decreasing to 9% and 11%, and the SRF were decreasing to 7% and 6% respectively. In addition, the injection sample size and treating capacity was also increasing by uisng the Plate-and-Frame filter press electro dewatering, and the the moisture contents of sludge cakes were decreasing to 42% and 47% conditioning by hydrogen peroxide and sodium persulfate. The corresponding energy consumptions were determined to be 14.69 kWh/ton and 13.43 kWh/ton, respectively. To summarize, it was obvious that dewatering efficiencies of biological municipal sludge increased by using advanced oxidation processes, and when an electric field was applied, the dewatering efficiencies and the treating capacity also increasd. It appeared that the electrodewatering process employed in this study was technically and economically feasible for biological sludges.
    Advisory Committee
  • Da-Ming Wang - chair
  • Chih-Huang Weng - co-chair
  • Shun-Hsing Chuang - co-chair
  • Gordon C. C. Yang - advisor
  • Files
  • etd-0116115-134330.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2015-02-16

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