科研之友
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摘要
An integrated technology by coupling the attapulgite supported zero-valent iron nanoparticles (A-nZVI) with UV/H2O2 process was proposed for Congo red (CR) wastewater treatment. With the addition of 4.0 g/L A-nZVI, the removal efficiencies were found to be 86.38 and 53.98% for dye concentration and TOC in 10 min, respectively. For UV/H2O2 process alone, the TOC removal was merely 50.25% in 40 min. However, once UV/H2O2 process was integrated with A-nZVI, complete decolorization and mineralization of CR solution can be achieved, which indicated that the intermediate products of A-nZVI pretreatment were feasible to be mineralized by the following formed photo-fenton system.
