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Title page for etd-0901115-110424


URN etd-0901115-110424 Statistics This thesis had been viewed 1283 times. Download 50 times.
Author Li-Ling Huang
Author's Email Address No Public.
Department Chemical Engineering
Year 2014 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 82
Title Adsorption and desorption of benzoic acid with copper-modified activated carbon
Keyword
  • Methanol
  • Activated carbon
  • Adsorption
  • Benzoic acid
  • Desorption
  • Desorption
  • Benzoic acid
  • Adsorption
  • Activated carbon
  • Methanol
  • Abstract In the recent years the industry develops very fast, thus many organic solvents and a large number of synthetic chemicals are used. Pure terephthalic acid ( PTA) is primarily used in the production of polyester fiber with major demand boost in Asia, therefore PTA process wastewater discharge increases with the increase in PTA demand. PTA process wastewater contains a lot of organic acids that are harmful to not only aquatic environment but also to human kind. In this study, activated carbon was modified with copper nitrate by impregnation method, and then used to adsorb the PTA process byproduct - benzoic acid, followed by desorption with methanol. According to the literature, copper in the modified activated carbon can form complexes with organic compounds, and thus increase the amount of organic compounds adsorbed by the activated carbon. The experimental results showed that benzoic acid in the wastewater could be successfully removed by copper-modified activated carbon and the adsorption amounts would not decrease at higher temperatures. It is quite possible to use methanol to desorb benzoic acid and to recover both benzoic acid and methanol.
    Advisor Committee
  • Jia-Ming Chen - advisor
  • Fu-Chang Huang - co-chair
  • Tai-Shang Chen - co-chair
  • Files indicate in-campus access immediately and off-campus access at one year
    Date of Defense 2015-07-29 Date of Submission 2015-09-01


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