title: Sonochemical decomposition of volatile and non-volatile organic compounds--a comparative study.
abstract: Sonochemical degradation which combines destruction of the target compounds by free radical reaction and thermal cleavage is one of the recent advanced oxidation processes (AOP) and proven to be effective for removing low concentration organic pollutants from aqueous streams. This work describes the degradation of several organic compounds of varying volatility in aqueous solution in two types of ultrasonic reactors. The process variables studied include initial concentration of the organics, temperature, and type of saturated gas. The effects of additional oxidant and electrolyte were also examined. A kinetic model was tested to determine its ability to predict the degradation rate constant of different volatile organic compounds at different initial conditions. A figure of merit for the electrical energy consumption for the two types of ultrasonic reactors is also presented.
authors.affiliation: Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, Singapore.
authors.forename: Mukesh
authors.initials: M
authors.lastname: Goel
authors.forename: Hu
authors.initials: H
authors.lastname: Hongqiang
authors.forename: Arun S
authors.initials: AS
authors.lastname: Mujumdar
authors.forename: Madhumita Bhowmick
authors.initials: MB
authors.lastname: Ray
mesh_terms: D005544:Forecasting; D007700:Kinetics; D008962:Models, Theoretical; D009930:Organic Chemicals / Q000302:isolation & purification; D010084:Oxidation-Reduction; D013696:Temperature; D014835:Volatilization; D014873:Water Pollutants / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D009930:Organic Chemicals; D014873:Water Pollutants