The History and Prospective of the AOPs for Environmental Applications in Colombia

摘要

A critical review about the evolution of different advanced oxidation processes(AOPs)implemented on environmental applications in Colombia(2000-2020),was developed in this study by means a bibliometric analysis.This country has shown an impressive growth in the last two decades,regarding to the development of AOPs,with promising studies in wastewater treatment based on solar natural light.From this analysis,we found that the heterogeneous photocatalysis(especially the solar photocatalysis)was the most developed AOP in the country,because it was the technology with most studies at pilot-scale and the only one with a reported real-scale application.Other AOPs such as:Electrochemical,photo-Fenton,ultrasound and catalytic wet peroxide oxidation(CWPO),have been reported as feasible technologies for wastewater treatment,although at lab-scale.The bibliometric analysis also showed that the Universidad de Antioquia and Universidad del Valle are the research institutions with the most contributions on AOPs in Colombia.This last institution has the largest number of AOPs‘ patents registered in Colombia.In general,AOPs in Colombia have shown a notorious development in the last 20 years;however,the photocatalysis is the only one that has been used with solar energy.The combination of AOPs with biological systems(or other AOPs)show greater effectiveness to remove pollutants than the AOPs operating standalone.Despite the Colombian progress regarding to these technologies‘ development,the transfer of AOPs as commercial solutions has been challenging;therefore,possible solutions to these problems were presented in this study in order to achieve a synergistic and efficient evolution.