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TiO2 Photocatalytic Oxidation Technology


“Protection of water resources, of fresh and salt water ecosystems and of the water we drink and bathe in is therefore one of the cornerstones of environmental protection in Europe. The stakes are high and the issues transcend national boundaries and concerted action at the level of the EU is necessary to ensure an effective protection”

Water is a precondition for human, animal and plant life as well as an indispensable resource for the economy. Water also plays a fundamental role in the climate regulation cycle.

Photocatalysis Oxidation is a suitable alternative to conventional water treatment processes.

One of the major applications of this technology in Water Treatment is the degradation of organic pollutants in water and air streams which is considered as one of the so-called advanced oxidation processes, and since the comparatively high costs associated with the generation of clean potable water from waste water etc, this process of utilising the power of visible light and PCO technology constitute one of the major advantages of this cost effective system for the rapid commercialisation of photocatalytic water treatment units.

The principle of photocatalysis is very simple:

A catalyst harnesses the radiation from sunlight or standard  fluorescent light and uses the energy to break down different substances. Photocatalysis action can be used to break down a wide variety of organic materials, crude oil, dyes, estrogens, microbes (including viruses and chlorine resistant organisms), organic acids,  pesticides and inorganic molecules such as nitrous oxides (NOx) and utilised in combination with precipitation or filtration, can also remove metals (such as mercury).

Decomposition products are nontoxic compounds like carbon dioxide, water and nitrates. The process is known as PhotoCatalytic Oxidization (PCO). The process works in visible light, however, UV lamps can sometimes be used for total optimisation.

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