Light Emitting Diode Based Photochemical Treatment of Contaminants in Aqueous Phase

TL;DRAbstract

In this research, photochemical treatment of pesticides and polychlorinated biphenyls (PCBs) in aqueous medium were investigated. The studies on photochemical treatment of these two groups of compounds, along with radiation field modelling, further, led to the design of an efficient light emitting diode (LED) based flow-through photocatalytic reactor. Sensitized photodechlorination of PCBs in surfactant solutions was studied. Three types of surfactants at different concentrations were investigated. The neutral and cationic surfactants were found to be more effective than the anionic one. In each case the surfactant concentration was found to play a significant role in the rate of dechlorination. LED based photocatalytic degradation of pesticides and chlorophenols, namely 2,4-dichlorophenoxyacetic acid (2,4-D), 2-methyl-4-chlorophenoxyacetic acid (MCPA) , 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) was studied. Further, the impact of photocatalyst loading and light intensity

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