ABSTRACT

During the last 30 years, environmental chemistry has concentrated almost exclusively on “conventional pollutants,” mainly pesticides and a large number of industrial chemicals. Nevertheless, in terms of the large number of commercial chemicals, these are only a small percentage of the pollutants found in the environment (Daughton and Ternes 1999). Over the recent decades, biologically active synthetic substances for use in agriculture, industry, and medicine have been dumped into the environment without any consideration for possible negative consequences. Recently, at the end of 2008, the European Commission approved a new Directive (2008/105/EC) on environmental quality standards in the ‹eld of water policy. The new directive considers the identi‹cation of the causes of chemical pollution of surface waters and the dealing with emissions at the sources, in the most

CONTENTS

2.1 Introduction .................................................................................................. 11 2.2 Solar Photo-Fenton ...................................................................................... 14

2.2.1 Fenton and Photo-Fenton ................................................................ 14 2.2.2 Solar Photocatalysis Hardware ...................................................... 17

2.2.2.1 Compound Parabolic Concentrators .............................. 19 2.3 Experimental Setup ..................................................................................... 21

2.3.1 Solar Pilot Plant ................................................................................ 21 2.3.2 Reagents ............................................................................................22 2.3.3 Analytical Measurements ...............................................................25 2.3.4 Experimental Procedures ............................................................... 26

2.4 Results and Discussion ............................................................................... 26 Acknowledgment ..................................................................................................33 References ...............................................................................................................33