Skip to main content

Development of environmentally friendly photoactivatable compounds for treatment of microbially polluted water

Objective

The main objectives are as follows:
* To develop a pilot plan for the decontamination of microbially polluted water by a novel photochemical technique, which is based on the use of visible light (or even sunlight) and porphyrin-type photosensitizers, i.e. a technique requiring a simple and cheap technology and having a low environmental impact.
* To identify porphyrin photosensitizers which exhibit an efficient and non-specific phototoxic action against a broad number of microbial species, including Gram-positive and -negative bacteria, yeasts and mycoplasma.
* To identify an inert water-swollen matrix (e.g. resin or inorganic bead) to which the photosensitizer can be covalently coupled without impairment of its photobiological activity.
* To define a protocol for the efficient photosensitizer inactivation of microbes in waters to be used for aquaculture and irrigation.
Expected Outcome

The final result should be the development and validation of a pilot plant for water photosterilization as well as the mise-au-point of optimal protocols for large scale decontamination of water from aquaculture systems.
The project should identify combinations of photosensitizer-inert support systems which are not noxious for the environment and allow one to achieve an efficient control of the microbial population without causing the selection of photoresistant species.
* Synthesis and photochemical/photobiological characterization of polymer- or inorganic bead-bound porphyrin photosensitizer.
* Development of protocols for large-scale photoinactivation of bacteria and other microbial species.
* Evaluation of the efficiency of a pilot plant for water decontamination, possibly in synergism with mechanical filtration.

Coordinator

Università degli Studi di Padova
Address
Via Trieste 75
35121 Padova
Italy

Participants (6)

BAR ILAN UNIVERSITY
Israel
Address
Faculty Of Sciences Bar-iian University
52900 Ramat Gan
Institut National de Recherches en Génie Rural, Eaux et Forêts
Tunisia
Address
Rue Hédi Karray
2080 Ariana
MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.
Germany
Address
34-36,Stiftstrasse 34-36
45413 Muelheim An Der Ruhr
Universidad de Buenos Aires
Argentina
Address

1428 Buenos Aires
Universitat Autonoma de Barcelona
Spain
Address

8193 Barcelona
Université Moulay Ismail de Meknes
Morocco
Address

50000 Meknes