Wet air oxidation of desizing wastewater from the textile industry

Lecheng Lei, Xijun Hu, Guohua Chen, John F. Porter, Po Lock Yue

Research output: Journal article publicationJournal articleAcademic researchpeer-review

52 Citations (Scopus)

Abstract

Wet air oxidation (WAO) was applied to treat the desizing wastewater from natural and manmade fiber processing in a 2-L autoclave reactor. The range of operating temperatures examined was between 150 and 290 °C. The partial pressure of oxygen ranged from 0.375 to 2.25 MPa at a reference temperature of 25 °C. Variations in chemical oxygen demand (COD) and total organic carbon were monitored during each experiment and used to evaluate the performance of the reaction process. Experimental results showed that WAO is an efficient method for the treatment of desizing wastewater. A higher COD removal was achieved under gentler reaction conditions with the aid of a catalyst. A two-parameter mathematical model involving a fast reaction and a slow reaction was used to describe the WAO reaction kinetics and to calculate the reaction activation energies.
Original languageEnglish
Pages (from-to)2896-2901
Number of pages6
JournalIndustrial and Engineering Chemistry Research
Volume39
Issue number8
DOIs
Publication statusPublished - 1 Jan 2000
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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