Application of the Central Composite Design and Response Surface Methodology to the Treatment of Wastewater Contaminated with Monoethanolamine using Fenton’s Reagent.

Monoethanolamine (MEA) is a solvent which frequently used for acidic gases
removal in natural gas sweetening process.A substantial amount of MEA
contaminated wastewater was generated during maintenance and cleaning of
absorption and stripping column.The MEA compound are not readily biodegradable
due to a high COD level of MEA containing in wastewater.
Therefore, the treatment of wastewater contaminated with MEA using Fenton's
oxidation is studied in the present research. The analysis method used response
surface methodology (RSM). The experiments were designed using central
composite design (CCD).
In this work, The objectives are to investigate the influences of two important
process parameters which are initial concentration of H2O2 and Fe2+ on the rate of
MEA degradation and also to determine the optimum conditions for the degradation
of MEA. Approximately, 92% of MEA concentration were degraded at the optimum
condition of H2O2 and Fe2+ concentration were at 1.396 M and 0.0172 M
respectively.