3. Experimental installation
The researchers highlighted the possibility of degrading until the complete mineralization of many pollutants.
However, in spite of the recognized effectiveness of this technique, there exists to date only few reactors able to
treat flows of significant effluents.
In this concept we chose the design and the realization of a tubular solar photocatalytic reactor in order to ensure the
water treatment polluted. We realized, within the workshops of the Solar Equipment Development Unit "UDES", a
tubular prototype of photocatalytic reactor (see Fig 1) dimensioned for the treatment of 30 litters water polluted in
closed circuit.
Concerning the energy, the experimental device is designed to function only with solar energy that ensures its
energy autonomy.
The solar photocatalytic reactor used in this experiment is based on compound collector technology [7]. This small
prototype consists of one photoreactor module with 05 tubes out of glass assembled in series (1m length x 65 mm
interne diameter x 2 mm thickness) mounted on aluminium reflectors. The tubular solar prototype reactor was
dimensioned for the treatment of 30 litres of polluted water in closed circuit. The reaction system was continuously
stirred to achieve a homogeneous suspension.
The photocatalytic application installed using sun-light irradiation. This solar ultraviolet radiation (UV) was
measured by global UV radiometer (KIPP&ZONZN, CMP11) mounted on a plat form titled 35° as the same as the
reactor.
This study verifies the efficiency of the heterogeneous photocatalysis (UV/TiO2) in the treatment of aqueous
solutions containing Linuron (LN) herbicide. Linuron (LN), is one of the most important phenylurea herbicides, that
has received particular attention in recent years due to the toxicity.
4 NadCiah eCkhire keitr a elt/ aPlr. o/ cPerdoiace Edniag iEnnegerininege r0in0g ( 23031 (12)0 01020) –107040 – 180 177
Fig 1: prototype of the tubular photo catalytic reactor (UDES 2010)