催化剂筛选实验评估了15种二氧化钛（TiO2）粉末，包括5种市售样品和10种实验室开发的实验催化剂。对两种明矾混凝地表水进行的光辅助非均相催化氧化（PHCO）实验表明，增加接触时间和入射光强度会破坏更多的非蒸煮性有机碳，并降低消毒副产物形成的可能性。经济分析表明，PHCO使用人造光激活催化剂会产生较高的运营和维护成本，而使用阳光会产生较高的资本成本。包括32个参考文献、表格和图表。

Catalyst screening experiments evaluated 15 titanium dioxide (TiO2) powders, including five commercially available samples and 10 experimental catalysts developed in the laboratory. Photoassisted heterogeneous catalytic oxidation (PHCO) experiments performed on two alum-coagulated surface waters showed that increasing the contact time and incident light intensity destroyed more nonpurgeable organic carbon and decreased the disinfection byproduct formation potential. Economic analysis showed that PHCO using artificial light to activate the catalyst created high operations and maintenance costs and that using sunlight created high capital costs. Includes 32 references, tables, figures.