Comparison of the toxicity of waters containing initially sulfaquinoxaline after photocatalytic treatment by TiO and polyaniline/TiO.

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ID: 1373
2019
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Abstract
This paper addresses the residual toxicity of waters after photocatalysis treatments The initial waters contain 7 mg L of sulfaquinoxaline (SQX) which is a sulfonamide antibiotic generally recorded inside the water. The contaminated waters are treated by photocatalytic degradation process with bare titania and titania covered with polyaniline (PANI) conducting polymer. The degradation of SQX is conducted at different pH in order to find the optimal condition to obtain SQX concentration relatively equal to zero in the shortest amount of time. This occurs for PANI/TiO at pH 12 and TiO at pH 4. Toxicity assays (concentration of biomass, pigmentation tests, and cells counting) are undertaken on the microalgae in order to evaluate the residual toxicity of the 2 treated waters. The toxicity results highlight that the water treated by PANI/TiO at pH 12 is the less toxic towards the algae cells. The water processed by bare titania at acidic pH displays unneglectable toxicity towards the algae cells which is larger than the toxicity of the original SQX solution.
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sandikly2019comparison Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sandikly, Nahid;Kassir, Mounir;Jamal, Mouhieddine El;Takache, Hosni;Arnoux, Philippe;Mokh, Samia;Al-Iskandarani, Mohammad;Roques-Carmes, Thibault;
Journal environmental technology
Year 2019
DOI
10.1080/09593330.2019.1630485
URL
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