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A Review of Different Types of DOE Methods as a Useful Platform for Improving the Performance of Nano Adsorbents in Removal Systems of Pollutants



 In recent years, the Design of Experiments (DOE) is used for removing
pollutant from wastewater by nano-adsorbent. Some methods are Taguchi, Response Surface
Methodology (RSM) and factorial design. The aim of this paper is to review different used
methods of DOE in removing pollutant to suggest some notations to scholars.



The reviewed papers were searched in Google Scholar, Scopus, and Web of Science
randomly and categorized based on DOE methods.



Number of factors and responses in DOE for removing pollutants from wastewater are
between 2-6 and 1-4, respectively. There are several computer software programs that provide
simple use of these methods, such as Qualitek, Design Expert, Minitab, R and Matlab Programming.
All models have a coefficient of determination R-sq more than 0.9.



All the mentioned methods are appropriate because of the high R-sq value. Since the
largest number of runs are used in RSM, it is not suitable for the experiments which are conducted
by expensive materials and process. Furthermore, Design Expert and Minitab are the most popular
software used by scholars in DOE methods for the removal of pollutant.
