To　improve　the　safety　of　sewage　recycle,The　catalytic　ozonation　mechanism　and　oxidation　kinetics　of　fulvic　acid　and　nonylphenol　ethoxylates　(NP　nEO)　were　studied　using　TiO2/AC/Iron　as　a　catalyst　of　catalytic　oxidation.The　results　show　that:　compared　with　the　ozone　oxidation　alone,　the　removal　of　organisms　in　catalytic　ozonation　was　higher,　after　the　reaction　20min,　the　removal　of　COD　in　fulvic　acid　solution　was　more　than　60%,　and　the　number　of　UV254　was　nearly　50%　as　well　as　the　number　of　NPnEO　was　99.65　%;　the　catalytic　ozonation　of　NP　nEO　and　fulvic　acid　were　first　order　reactions;at　the　early　stage　of　oxidation,　the　distribution　of　polymerization　degree　on　NPnEO　was　still　consistent　with　the　Poisson　distribution,　As　the　reaction　progressed,　the　NPnEO　with　small　polymerization　degree　such　as　NP1EO　and　NP2EO　started　to　accumulate.　©　2011　IEEE.