New helio-photocatalytic–photovoltaic hybrid system for simultaneous water decontamination and solar energy conversion

Test results for a designed and installed hybrid photocatalytic–photovoltaic system (HPPS) are presented in this paper. The HPPS consists of one device with dual functions: The photocatalytic system uses UV radiation to promote degradation of organic pollutants, and beside it absorbs the IR radiation. The photovoltaic (PV) system converts the visible radiation into electricity, which can either be used directly by the recirculation pump or stored in a battery for other purposes. The suggested design aims to achieve an autonomous, environmentally friendly method for the treatment of biorecalcitrant pollutants. Two prototypes were erected: HPPSP, using Plexiglas and HPPSG using commercial glass. Both were tested outdoors to determine their impact on photovoltaic power production. Test results showed that PV power diminished to 14% and 22% for HPPSG and HPPSP respectively, compared to a PV panel alone. 2005 Elsevier Ltd. All rights reserved.