{Reference Type}: Journal Article
{Title}: Decolorization enhancement of basic fuchsin by UV/H2O2 process: optimization and modeling using Box Behnken design.
{Author}: El Hanafi N;Zaabar A;Aoudjit F;Lounici H;
{Journal}: J Environ Sci Health A Tox Hazard Subst Environ Eng
{Volume}: 59
{Issue}: 5
{Year}: 2024 Jun 21
{Factor}: 2.582
{DOI}: 10.1080/10934529.2024.2369432
{Abstract}: The present work deals with the optimization of basic fuchsin dye removal from an aqueous solution using the ultraviolet UV/H2O2 process. Response Surface Modeling (RSM) based on Box-Behnken experimental design (BBD) was applied as a tool for the optimization of operating conditions such as initial dye concentration (10-50 ppm), hydrogen peroxide dosage (H2O2) (10-20 mM/L) and irradiation time (60-180 min), at pH = 7.4 under ultra-violet irradiation (254 nm and 25 W intensity). Chemical oxygen demand (COD abatement) was used as a response variable. The Box-Behnken Design can be employed to develop a mathematical model for predicting UV/H2O2 performance for COD abatement. COD abatement is sensitive to the concentration of hydrogen peroxide and irradiation time. Statistical analyses indicate a high correlation between observed and predicted values (R2 > 0.98). In the BBD predictions, the optimal conditions in the UV/H2O2 process for removing 99.3% of COD were found to be low levels of pollutant concentration (10 ppm), a high concentration of hydrogen peroxide dosage (20 mM/L), and an irradiation time of 80 min.