Subcritical water oxidation of propham by H₂O₂using response surface methodology (RSM)

Abstract

This study was conducted to investigate the degradation of propham, which is a compound that pollutes water and seriously threatens human health, by subcritical water oxidation and using HO as an oxidising agent. The maximum total organic carbon removal rate of propham was obtained as 73.65% at 40 min of treatment time and 60 mM of HO concentration and 373 K of temperature. In addition, response surface method based on the Box-Behnken design was applied to design the degradation experiments of propham for determination of the combined effects of process variables, namely temperature, concentration of oxidising agent and treatment time. The proposed quadratic model of propham degradation, which was examined with the analysis of variance, was used for navigating the design space. The R and adjusted R values of the model were determined as 0.9921 and 0.9819 respectively. It was shown that propham was effectively degraded, thus could be removed from the water by using an environmentally friendly method.

Application of the central composite design to mineralization of olive mill wastewater by the electro/FeII/persulfate oxidation method

“…The response surface method (RSM) is one of the most important statistical methods which is used for the mentioned purpose by researchers. The central composite design (CCD) is a well-known secondorder RSM model which is needed quite a few numbers of design points while providing a reasonable amount of information for testing lack of fit of the experimental model [39][40][41][42][43][44][45].…”

Preparation of Breadfruit Leaf Biochar for the Application of Congo Red Dye Removal from Aqueous Solution and Optimization of Factors by RSM-BBD

“…Table 5 shows the standard fit statistics. The R 2 (0.97) and adjusted R 2 (0.94) difference is 0.2, indicating that the RSM model produced is connected to tangible outcomes [51].…”

Production of the 2,5-Furandicarboxylic Acid Bio-Monomer From 5-Hydroxymethylfurfural Over a Molybdenum-Vanadium Oxide Catalyst

“…Response surface methodology (RSM) is a statistical method for solving multivariable problems by using a reasonable experimental design method and obtaining certain data through experiments. For this purpose, a multiple quadratic regression equation is used to fit the functional relationship between the factors and response values, and the optimal process parameters are determined through analysis of the regression equation ( Bezerra et al, 2008 ; Yemi and Mazza, 2012 ; Gaidoumi et al, 2019 ; Yabalak et al, 2018 ). The Box-Behnken design (BBD) software, which is a quadratic response surface, has been applied to approximate a response function for experimental data that cannot be described by linear functions ( Seo and Han, 2014 ).…”