Sonolytic, photolytic and photocatalytic decomposition of atrazine in the presence of polyoxometalates

Article Abstract:

The usage of s-Triazine herbicides in control of weed in nonagricultural areas and various crop cultures has resulted in a serious contamination of surface drinking and gorundwater supplies in addition to agricultural sites. Atrazine is one of the most used of the s-triazine herbicides. The following study examines the undertaking of aqueous solutions of atrazine decomposing upon illumination from a low pressure Hg-arc lamp.

Germany, Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Water Pollution Control R&D, Statistical Data Included, Environmental aspects, Pollution control industry, Water pollution, Herbicides, Water pollution research, Atrazine, Environmental remediation

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Colloid-facilitated transport of strongly sorbing contaminants in natural porous media: a laboratory column study

Article Abstract:

The transport of a strongly sorbing contaminant in natural porous material in the presence of a colloid catalyst was investigated using laboratory column experiments. The results revealed that colloid-facilitated transport of a contaminant can be the dominant transport pathway under certain conditions: a high concentration of the strongly sorbing contaminant, and teh solution should contain high concentrations of monovalent cations. The implications of this transport mechanism in the treatment of subsurface contamination are discussed.

Pollutants, Colloids

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