Use of Solid Catalysts in Promoting Water Treatment and Remediation Technologies

1 General Aspects of Use of Solid Catalysts in Water Purification Technologies. -1.1.1 Photocatalytic Treatments of Wastewater. There are several excellent reviews on photocatalytic treatments of wastewater which include not only the use of Ti02 as a photocatalyst, but also its combination with H2O2 or Fe /H202 (the so-called photo-Fenton process) in order to improve the effi- 

The comparison of the AOPs technologies is often made only in terms of efficiency in the removal of pollutants, but a more correct analysis should takes into account several parameters (i) safety of operations, (ii) manageability and applicability to the specific operations (for example, when small volume effluents dispersed over a wide territory, it may be preferable to transport the water treatment unit instead rather than to collect all wastewater in a single central treatment unit), (iii) technical effectiveness using real streams, (iv) absence of necessity of post-treatments (to eliminate some residual compounds, even in traces, or metal ions), (v) secondary pollution prevention, (vi) minimal toxicity of 

There are several recent very interesting new areas in the photocatalytic removal of pollutants from water. In particular, two new direction of research may be cited, while for fundamental aspects regarding photocatalytic processes reference is given to the cited reviews  

A more detailed discussion of these aspects and in general of the use of catalysts in water treatment is reported elsewhere  

There are two main drawbacks of the WACO technology, besides the general 

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Use of Solid Catalysts in Promoting Water Treatment and Remediation Technologies... 

Centi, G. and Perathone, S. (2005). Use of Solid Catalysts in Promoting Water Treatment and Remediation Technologies, Catalysis, 18, pp. 46-71. 

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