DEVELOPMENT OF ADVANCED OXIDATION PROCESSES (AOPS) WITH THE USE OF NANOMATERIALS AND SUNLIGHT, FOR THE REMOVAL OF VARIOUS ORGANIC TOXIC MICROPOLLUTANTS, ENDOCRINE DISRUPTERS AND CYANOTOXINS FROM NATURAL WATERS AND SEWAGES

Abstract: 

Contamination of natural waters is often associated with the excessive use of agrochemicals, with pharmaceuticals that can enter those systems via domestic or industrial discharges and cyanotoxins, considered as an important water quality problem of biological origin. The removal of such contaminants by conventional wastewater treatment is often incomplete thus, a large number of toxic organics are released into natural waters. Treatment plants are faced with the challenge of developing new techniques to remove these pollutants in anticipation of stricter regulations as new information on their transport and effects is reported. For streams containing such biorecalcitrant substances, alternatives to the activated sludge treatment must be employed alone or in combination with conventional methods. Among chemical treatments, Advanced Oxidation Processes are well known for their capacity for oxidizing and mineralizing almost any contaminant.

In recent years increasing attention has been paid to photocatalytic reactions occurring on semiconductor particles suspended in aqueous solutions. The heterogeneous photocatalytic detoxification process consists of utilizing the near-UV part of the solar spectrum to photoexcite a semiconductor catalyst. This occurs through a multi-step process involving the attack of the substrate by radical species, amongst which- OH radicals are recognized to be the most powerful oxidant. TiO2 photocatalysts are commonly used and their efficiency has been demonstrated for the partial or total destruction of different types of pollutants.

The proposed project deals mainly with:

  • Synthesis and characterization of new nanomaterials of modified TiO2 suitable for the photocatalytic degradation of pollutants Evaluation of the degradation kinetics of the compounds by using GC and LC.
  • Identification and toxicity evaluation of the transformation products Construction and optimization of operation of a pilot plant photocatalytic treatment system.

 

MIS: 379409

 

Project info

Acronym:
AOP-NanoMat
Coordinating Institution:
University of Ioannina
Scientific Coordinator:
Albanis Triantafyllos
Research Team 2 Leader:
Konstantinou Ioannis
Research Team 3 Leader:
Diamantopoulos Evangelos
Research Team 4 Leader:
Falaras Polykarpos

Stats

I.D.:
833
Mis:
379409
Duration (months):
38
Budget:
600 000.00
Diavgeia:
ΑΔΑ: Β4Λ59-9ΒΧ

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