Degradation of metaldehyde in water by nanoparticle catalysts and powdered activated carbon.

ABSTRACT: Metaldehyde, an organic pesticide widely used in the UK, has been detected in drinking water in the UK with a low concentration (<1 μg L^-1) which is still above the European and UK standard requirements. This paper investigates the efficiency of four materials: powdered activated carbon (PAC) and carbon-doped titanium dioxide nanocatalyst with different concentrations of carbon (C-1.5, C-40, and C-80) for metaldehyde removal from aqueous solutions by adsorption and oxidation via photocatalysis. PAC was found to be the most effective material which showed almost over 90% removal. Adsorption data were well fitted to the Langmuir isotherm model, giving a q _m (maximum/saturation adsorption capacity) value of 32.258 mg g^-1 and a K _L (Langmuir constant

SUBMITTER: Li Z 

PROVIDER: S-EPMC5533860 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature