Research Article
Pretreatment of Color Filter Wastewater towards Biodegradable by Fresnel-Lens-Assisted Solar TiO2 Photocatalysis
Table 3
Effect of Fresnel lens on the degradation efficiency and biodegradability of color filter wastewater.
| Solar light source and reaction time | Intensity, W/m2 | Wastewater temperature, °C | COD removal, % | TOC removal, % | AOS | BOD5/COD |
| Solar light + Fresnel lens, 1 h | 110.3 | 35–45 | 37.4 | 25.8 | 0.01 | 0.150 | Suntest 500 W/m2, 1 h | 66.5 | 25 | 25.9 | 20.3 | −0.40 | 0.112 | Suntest 500 W/m2, 2 h | 66.5 | 25 | 29.1 | 22.6 | −0.15 | 0.120 | Suntest 500 W/m2, 3 h | 66.5 | 25 | 32.9 | 24.4 | −0.02 | 0.145 |
|
|