(225a) Fundamental Developments and Economic Feasibility of AOPs Involving Ultrasound for Environmental Remediation
AIChE Annual Meeting
2013
2013 AIChE Annual Meeting
Environmental Division
Advanced Oxidation Processes I
Tuesday, November 5, 2013 - 8:30am to 8:45am
Recently, advanced oxidation processes (AOPs) have found world-wide applications for water treatment and environmental remediation and control of air toxics. AOPs involving sonochemistry (i.e., ultrasound), combinative sonophotochemical, sonophotocatalytic and sonoelectrochemical processes, hydrodynamic cavitation, persulfate and/or activated persulfate and other advanced oxidation processes are of particular emerging interests in the research community. These processes offer the potential for shorter reaction cycles, cheaper reagents, and less extreme physical conditions, leading to less expensive and perhaps smaller plants. AOPs have promise to destroy many emerging organic contaminants in water and are being considered in potable water treatment, wastewater treatment, site remediation, and industrial applications. Numerous aqueous emerging organic micropollutants such as perfluorinated surfactants and perfluroalkyl acids (PFAAs), pharmaceuticals, hormones, steroids, antibiotics, personal care products, disinfection by-products and other emerging pollutants; have been studied. This paper will provide a state-of-the-art and unified fundamental chemistry and reaction kinetics involved in the innovative advanced oxidation processes via cavitation, activated aqueous persulfate and other oxygenated oxidants; and will evaluate the performance and economics of AOPs involving ultrasound and hydrodynamic cavitation against conventional water treatment technologies. It is intended to advance our understanding of these emerging technologies and outline directions for future research.
References
Mahamuni, N.N.; Adewuyi, Y.G. Advanced Oxidation Processes (AOPs) Involving Ultrasound for Waste Water Treatment: A Review with Emphasis on Cost Estimation. Ultrason. Sonochem. 2010, 17, 990-1003 http://dx.doi.org/10.1016/j.ultsonch.2009.09.005
Adewuyi, Y.G. Sonochemistry in Environmental Remediation. 2. Heterogeneous Sonophotocatalytic Oxidation Processes for the Treatment of Pollutants in Water. Environ. Sci. Technol. 2005, 8557-8570. http://dx.doi.org/10.1021/es0509127
Adewuyi, Y.G. Sonochemistry in Environmental Remediation. 1. Combinative and Hybrid Sonophotochemical Oxidation Processes for the Treatment of Pollutants in Water. Environmental Science & Technology. 2005, 39, 3409-3420 http://dx.doi.org/10.1021/es049138y
Adewuyi, Y.G. Sonochemistry: Environmental Science and Engineering Applications. Industrial & Engineering Chemistry Research. 2001, 40, 4681-4715 http://dx.doi.org/10.1021/ie010096l
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