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Minimization of methabenzthiazuron residues in leaching water using amended soils and photocatalytic treatment with TiO2 and ZnO.
Fenoll, José; Flores, Pilar; Hellín, Pilar; Hernández, Joaquín; Navarro, Simon.
Affiliation
  • Fenoll J; Department of Food Quality, Murcia Institute of Agri-Food Research and Development, C/Mayor s/n. La Alberca, Murcia 30150, Spain. Electronic address: jose.fenoll@carm.es.
  • Flores P; Department of Food Quality, Murcia Institute of Agri-Food Research and Development, C/Mayor s/n. La Alberca, Murcia 30150, Spain.
  • Hellín P; Department of Food Quality, Murcia Institute of Agri-Food Research and Development, C/Mayor s/n. La Alberca, Murcia 30150, Spain.
  • Hernández J; Department of Agricultural Chemistry, Geology and Pedology, School of Chemistry, University of Murcia, Campus Universitario de Espinardo, Murcia 30100, Spain.
  • Navarro S; Department of Agricultural Chemistry, Geology and Pedology, School of Chemistry, University of Murcia, Campus Universitario de Espinardo, Murcia 30100, Spain.
J Environ Sci (China) ; 26(4): 757-64, 2014 Apr 01.
Article in En | MEDLINE | ID: mdl-25079405
In the present work, potential groundwater pollution by methabenzthiazuron (MTBU) and the effect of three different amendments (composted sheep manure, composted pine bark and spent coffee grounds) on its mobility were investigated under laboratory conditions. The efficiency of ZnO and TiO2 suspensions in the photocatalytic degradation of MTBU in leaching water was also investigated. The relative and cumulative breakthrough curves were obtained from disturbed soil columns. The presence and/or addition of organic matter drastically reduced the movement of the herbicide. On other hand, photocatalytic experiments showed that the addition of ZnO and TiO2 strongly enhances the degradation rate of this herbicide compared with the results of photolytic experiments under artificial light. ZnO appeared to be more effective in MTBU oxidation than TiO2. The results obtained point to the interest of using organic wastes and heterogeneous photocatalysis for reducing the pollution of groundwater by pesticide drainage.
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Full text: 1 Database: MEDLINE Therapeutic Methods and Therapies TCIM: Terapias_biologicas / Peloideterapia Main subject: Photolysis / Soil / Water Pollution, Chemical / Benzothiazoles / Methylurea Compounds Type of study: Evaluation_studies Language: En Journal: J Environ Sci (China) Year: 2014 Type: Article

Full text: 1 Database: MEDLINE Therapeutic Methods and Therapies TCIM: Terapias_biologicas / Peloideterapia Main subject: Photolysis / Soil / Water Pollution, Chemical / Benzothiazoles / Methylurea Compounds Type of study: Evaluation_studies Language: En Journal: J Environ Sci (China) Year: 2014 Type: Article