ASSESSMENT OF THE TREATMENT EFFICIENCY OF SOME POLYCYCLIC AROMATIC HYDROCARBON (PAHS) IN THE WATER BY DOPED TIO2To Xuan Quynh and Vu Duc ToanAbstract Treatment of persistent organic pollutants by advanced oxidation processes is a trend nowadays because of its efficiency. Through studies, it has been found that enhanced oxidation processes can treat organic pollutants that are difficult to decompose due to OH radicals and can convert those substances into nontoxic substances which areH2O và CO2. TiO2is a strong oxidizing agent; especially with the addition of catalysts, it is highly likely to be able to to treat persistent pollutants. PAHs are a class of polycyclic aromatic hydrocarbons that are highly toxic and persistent in the environment. The treatment of PAHs with 1% Fe-doped TiO2 coated on silica gel combined with using a 365nm UV lamp model initially produced certain results. Treatment efficiency is up to over 90% after 48 hours. On that basis, the article proposes a feasible solution for the treatment of PAHs in particular and toxic organic substances in general. |