Purification of water contaminated by toxic organic compounds at low and very low concentration is a quite interesting
challenge from both the technical and the economical point of view. In fact, the direct destruction of organic compounds
dissolved in very diluted aqueous solution is very costly and hardly achievable. To overcome this problems it
was studied and developed a new water purification process which is made of three steps: 1) removal of the diluted and
toxic polluting compounds by adsorption on activated carbon beds operating at ambient P ant T; 2) regeneration of the
exhausted carbon bed with supercritical water in order to obtain a mixture of water and polluting compounds significantly
more concentrated than the contaminated liquid water; 3) destruction of the toxic compounds in a continuous
Supercritical Water Oxidation Reactor. Step 1) was studied at laboratory scale in order to obtain all the required information
for modeling the adsorption operation; step 2) was modeled by using literature experimental data and, step 3)
was validated at pilot plant scale. In all the above mentioned steps, phenol was used as representative of polluting compounds