Degradation of 1,2-dichloroethane using advanced reduction processes

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 (S2O42-), sulfite ions (SO32-) 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, S2O42- was more effective than the other reducing agents during UV irradiation. Experimental results showed that the S2O42-/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 42- 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. 2013 Elsevier Ltd.

authors

• Abdel-Wahab, Ahmed
• Batchelor, Bill

published proceedings

• JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

author list (cited authors)

• Yoon, S., Han, D. S., Liu, X. u., Batchelor, B., & Abdel-Wahab, A.

complete list of authors

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

publisher

• Elsevier  Publisher

published in

• Journal of Environmental Chemical Engineering  Journal

keywords

• 1,2-dichloroethane
• Advanced Reducing Process
• Reducing Agents
• UV Irradiation

Digital Object Identifier (DOI)

• 10.1016/j.jece.2013.11.013

URI

• https://hdl.handle.net/1969.1/153936

start page

• 731

end page

• 737

volume

• 2

issue

• 1