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Holistic analysis of emerging contaminant removal using advanced oxidation processes
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1  Mississippi State University


The presence of pollutants known as emerging contaminants in water and wastewater is a topic of growing interest. Emerging contaminants, which include endocrine disrupting chemicals (EDCs) and pharmaceutical and personal care products (PPCPs), are compounds that remain relatively unknown, although their adverse effects have been proven. Emerging contaminants are not satisfactorily removed by traditional treatment methods; therefore, there is a need for innovative techniques. Advanced oxidation processes (AOPs) have been recognized as successful removal methods for these problematic pollutants. However, technical success is not the only factor that must be considered. Process engineering, environmental, and economic and social parameters were considered. A holistic analysis was completed using a ranking system to determine the performance of several AOPs (ozonation, UV, photocatalysis, the Fenton reaction, and integrated processes). Ultimately, H2O2/O3 presented the highest average ranking (3.45), with the other processes showing similar performance, with the exception of TiO2 photocatalysis (2.11).

Comments on this paper
Andreas Reul
Although not from my research field, I find it an interesinng contribution. However, I don't understand the Ranking Methodology, and where the values in table 1 comes from. I understand that the ranking is between 1 and 5, but I don't know who (experts?) or what measurements are behind these numbers.

Also for better reading I would highlite in table 1 the average rows.
Veera Gnaneswar Gude
Thank you for your comment.

Regarding the ranking methodology, we provided a basic explanation in the presentation. We are the first to evaluate these processes from this perspective and so we have provided the ranking methodology based on a thorough literature review, critical analysis and laboratory experimental studies.

We are in the process of publishing a comprehensive paper on this topic soon.