Degradation of 1,2-dichloroethane using advanced reduction processes

Sunhee Yoon, Dong Suk Han, Xu Liu, Bill Batchelor, Ahmed Abdel-Wahab

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

In this study, advanced reduction processes (ARPs) was applied for degradation of 1,2-dichloroethane (1,2-DCA). ARPs are based on combining reducing reagents and activating methods to produce highly reactive, reducing free radicals. In this study, a combination of different reducing agents (dithionite ions (S2O4 2-), sulfite ions (SO3 2-) and sulfide ions (S2-)) and two activating methods (medium pressure mercury (UV-M) lamp, narrow-banded mercury (UV-N) lamp) were evaluated for 1,2-DCA degradation. In the screening test, S2O4 2- was more effective than the other reducing agents during UV irradiation. Experimental results showed that the S2O4 2-/UV-M system degraded 1,2-DCA completely after 4 h of irradiation time over a wide range of pH values. In the alkaline solution, however, complete degradation of 1,2-DCA was also observed with all of three reducing agents under irradiation of UV-M lamp. UV-N/S2O 4 2- gave slower degradation of 1,2-DCA, but complete removal was observed eventually except acidic pH condition. This work could provide information on a practical application of ARPs to treat chlorinated organics.

Original languageEnglish
Pages (from-to)731-737
Number of pages7
JournalJournal of Environmental Chemical Engineering
Volume2
Issue number1
DOIs
Publication statusPublished - 2014

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Keywords

  • 1,2-Dichloroethane
  • Advanced reducing process
  • Reducing agents
  • UV irradiation

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

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