Investigation of Adsorption Performance In The Removal of Waste Water Contaminants By Nanostructures From ElectroOxidation of Different Metals

Abstract

Abstract
Water pollution with various pollutants, including heavy metals, is a serious
environmental challenge for the world. Most of the methods available for removing
contaminants from contaminated water generally show their effectiveness at high
concentrations and are not responsive to low concentrations (concentrations below 100 mg /
l). They are also not affordable. Therefore, it is necessary to use a method that in addition to
being low cost, its performance is also effective in refining heavy metals. Adsorption is a very
rich process with scientific and experimental background due to its many advantages. This
study is a review of the study and collection of information regarding the adsorption of metal
contaminants from contaminated water by nanoparticles produced by electro-crystallization.
Then, at the end, the effect of increasing the oxidation voltage and consequently the effect of
reducing the size of nanoparticles resulting from electro-oxidation of various metals in the
removal efficiency of contaminants has been investigated. According to the results of studies
in this field, increasing the voltage has reduced the size of nanoparticles produced, which has
resulted in an increase in the efficiency of adsorption of heavy metals from contaminated
water, which in some cases even the absorption rate has reached over 90%.