The process of removing paratoleic acid by advanced oxidation process from the effluent of terephthalic acid production in textile fiber production industries

In recent years, the semiconductor photocatalytic process has a great potential as a low-cost, environmentally friendly and sustainable technology, which is known as zero design in the water and wastewater industry. The ability of advanced oxidation technology is widely used to remove stable organic compounds and microorganisms from water. Currently, the recovery of catalyst particles after water treatment is the main obstacle to the commercialization of this process. In this research, the combination of ozone with ultraviolet rays in the presence of titanium dioxide and also the effect of temperature on the reaction in a discontinuous reactor to separate paratoleic acid from the effluent of the terephthalic acid production unit have been investigated. and also with the increase of the sample temperature due to the decrease in the solubility of ozone gas, it decreased to 10% and also in the presence of titanium dioxide, the removal efficiency decreased and reached 8%.