Degradation of clofibric acid by a phenol resistant Pseudomonas aeruginosa strain

International audienceno abstrac

Etude des possibilités de préparation d'absolues de rose par ultrafiltration.

International audienc

Etude des possibilités de préparation d'absolues de rose par ultrafiltration.

International audienc

Etude des possibilités de préparation d'absolues de rose par ultrafiltration.

International audienc

Removal efficiency of pharmaceutical drugs (Mebeverine hydrochloride MEB) by an activated carbon prepared from dates stems

International audienceThe removal efficiency of the pharmaceutical drug Mebeverine Hydrochloride (MEB) from solutions by an activated carbon (AC) prepared from dates stems was investigated in the present research work. The surface properties of the activated carbon were investigated by elementary analysis, BET surface area, SEM, FTIR and pH(pzc). The operating parameters effect on the MEB adsorption efficiency was investigated by using batch experiments. The adsorption isotherms study indicated that the experimental data were well described by Freundlich and DR isotherms, with the maximum adsorption capacity (q(max)) of 4105 mg/g. This result suggests the multilayer adsorption of MEB on the activated carbon. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40201-021-00658-1

Etude des possibilités de préparation d'absolues de rose par ultrafiltration.

International audienc

Etude des possibilités de préparation d'absolues de rose par ultrafiltration.

International audienc

Successful Biodegradation of a Refractory Pharmaceutical Compound by an Indigenous Phenol-Tolerant Pseudomonas aeruginosa Strain

International audienceThis study provides an alternative solution for the bioremediation of a recalcitrant pharmaceutical micropollutant. Clofibric acid (CLA) was chosen as target molecule, because of its environmental persistence and resistance to wastewater treatment technologies. The aim of this study was to investigate the potential of a phenol-resistant Pseudomonas aeruginosa strain isolated from the activated sludge to degrade CLA. In order to evaluate the effect of acclimation process with glucose as carbon co-substrate, two protocols were performed, in which the transfer of the inoculum is carried out either in the exponential growth phase or in the decline phase. The results showed a removal efficiency of CLA of 35% when cells in the decline phase were used for inoculation. In contrast, a very low removal yield (10%) was achieved when cells harvested in the exponential phase were used as inoculum. This work is the first one reporting on the capability of this bacterium to remove this drug. The obtained data showed that the isolated strain is able to degrade target molecule and might be a promising agent for the elimination of this refractory compound