Abstract
Pharmaceuticals and personal care products (PPCPs) are considered as the emerging environmental problem in the recent years. The elimination of PPCPs during water treatment are investigated at lab through different advanced oxidation processes (AOPs), which are the technologies based on the intermediacy of hydroxyl and other radicals to oxidize pollutants. Catalytic ozonation is proved as an effective technology for the removal of organics from wastewater. The paper presents a short review about the introduction of the ozonation catalysts and the reaction mechanism of the catalytic ozonation. The main aim is to provide a new and effective method in the removal of PPCPs in the aqueous solution.
Highlights
The demand for fresh water is increasing with the growth in world population, and obtaining an adequate supply of clean water has likely been the challenge for many countries
Advanced oxidation processes (AOPs) were frequently selected as a water treatment option to remove refractory and toxic organic compounds present in water, the traditional advanced oxidation processes (AOPs), including photocatalysis and photoFenton can hardly meet the requirements of the practical applications, because the high cost and the low mineralization efficiency [27]
Homogeneous catalytic ozonation can effectively improve the efficiency of removal of organic pollutants in water, but the disadvantage of this technology is to introduce ions and result in the secondary pollution, which lead to increase the costs of water treatment
Summary
The demand for fresh water is increasing with the growth in world population, and obtaining an adequate supply of clean water has likely been the challenge for many countries. Advanced oxidation processes (AOPs) were frequently selected as a water treatment option to remove refractory and toxic organic compounds present in water, the traditional AOPs, including photocatalysis and photoFenton can hardly meet the requirements of the practical applications, because the high cost and the low mineralization efficiency [27]. Ozone is used widely in water treatment technology because of its powerful oxidation [28,29,30] It has been reported, in most cases, the ozonation cannot completely degrade organic compounds and sometimes produce toxic intermediates.
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