The degradation mechanism of wastewater containing MDEA using UV/H2O2 advanced oxidation process

Author

Harimurti, Sabtanti ; Rahmah, Anisa Ur ; Omar, Abul Aziz ; Murugesan, Thanpalan

Author_Institution

Dept. of Chem. Eng., Univ. Teknol. Petronas, Bandar Seri Iskandar, Malaysia

fYear

2011

fDate

19-20 Sept. 2011

Firstpage

1

Lastpage

5

Abstract

Alkanolamines such as MEA, DEA, MDEA and DIPA in aqueous solutions is frequently used for scrubbing carbon dioxide from natural gas. High quantity of alkanolamine appears in the wastewater during cleaning and maintenance as well as shutdown of the absorption and desorption columns. The alkanolamines waste is toxic to the environment and this wastewater cannot be treated in the conventional wastewater treatment. Advanced Oxidation Process (AOP) named UV/H₂O₂ is introduced to solve this problem. A laboratory set up of degradation MDEA waste using UV/H₂O₂ was conducted and the degradation mechanism has been studied. Glycine, oxalic acid, acetic acid, nitrate ion, nitrite ion and ammonium ion are identified as degradation intermediate product.

Keywords

absorption; cleaning; desorption; gas industry; industrial waste; oxidation; petroleum; wastewater treatment; MDEA degradation; absorption columns; acetic acid; advanced oxidation process; alkanolamines; ammonium ion; cleaning; desorption columns; glycine; methyl diethanolamine; natural gas; nitrate ion; nitrite ion; oxalic acid; wastewater treatment; Atomic measurements; Chemical engineering; Degradation; Natural gas; Nitrogen; Oxidation; Wastewater; AOP´s; MDEA; TOC; UV/H2O2;

fLanguage

English

Publisher

ieee

Conference_Titel

National Postgraduate Conference (NPC), 2011

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4577-1882-3

Type

conf

DOI

10.1109/NatPC.2011.6136283

Filename

6136283