CAJ | 학술논문

采用溶胶凝胶法，以玻璃纤维网为载体负载TiO2薄膜。利用小试试验研究了UV/负载TiO2体系对水中微量磺胺甲恶唑（SMX）的降解效能及影响因素。结果表明UV/负载TiO2体系对纯水中SMX有较好的去除效果，且降解过程很好地符合一级反应动力学模型；SMX的初始浓度和溶液pH值对体系的氧化性能均有一定的影响，较低的初始浓度和较低的pH值均有利于体系对SMX的降解；H2 O2的投加浓度存在最佳值（当SMX初始浓度为300μg/L时，最佳投加量为10μg/L）；此外，正丁醇和KI的存在均会降低体系对SMX的降解速率，原因在于正丁醇和KI会与SMX分子竞争·OH。通过对实际水样加标降解的试验可知，水源水中的SMX较污水生化池出水中的SMX更易去除。
채용용효응효법，이파리섬유망위재체부재TiO2박막。이용소시시험연구료UV/부재TiO2체계대수중미량광알갑악서（SMX）적강해효능급영향인소。결과표명UV/부재TiO2체계대순수중SMX유교호적거제효과，차강해과정흔호지부합일급반응동역학모형；SMX적초시농도화용액pH치대체계적양화성능균유일정적영향，교저적초시농도화교저적pH치균유리우체계대SMX적강해；H2 O2적투가농도존재최가치（당SMX초시농도위300μg/L시，최가투가량위10μg/L）；차외，정정순화KI적존재균회강저체계대SMX적강해속솔，원인재우정정순화KI회여SMX분자경쟁·OH。통과대실제수양가표강해적시험가지，수원수중적SMX교오수생화지출수중적SMX경역거제。
The immobilized TiO2 film loaded on fiberglass meshes was prepared by sol-gel method. Removal efficiency and influencing factors of sulfamethoxazole (SMX)by the combined process of UV and immobilized TiO2 were studied in detail through pilot test. Results show that SMX can be effectively oxidized by the UV/ immobilized TiO2 process and the first order reaction kinetics model can be used to simulate the oxidation process well. To a certain degree,degradation rate is affected by the initial concentration of SMX and water pH. Lower initial concentration and lower water pH both favor the degradation of SMX. The optimum concentration of H2 O2 for the system is found to be 10μg/L when initial concentration of SMX is 300μg/L. Furthermore,the existence of n-butyl alcohol and KI can reduce the degradation rate of the system on SMX. The reason is that n-butyl alcohol and KI compete with SMX for ·OH. The degradation test of actual water samples which the standard SMX is added to shows that SMX in source water is removed more easily than it in biochemical pool of sewage plant.