Abstract
In water treatment by ionizing radiation ·OH is suggested to initiate the degradation of organics. In these reactions mostly carbon centred radicals form. Here we show that other inorganic radicals also highly contribute to the initiation of degradation. Cl− and HCO3 − in the treated water reacting with ·OH transform to Cl 2 ·− and CO 3 ·− . In their reactions C-centred radicals form, too. The reactions of e aq − and H· water radiolysis intermediates may also produce carbon centred radicals. The C-centred radicals react readily with dissolved O2, this is the starting step of the gradual oxidation.
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