Pretreatment of Color Filter Wastewater towards Biodegradable by Fresnel-Lens-Assisted Solar TiO₂ Photocatalysis

Table 5

Effect of water temperature on the degradation rate constant of color filter wastewater^a.

Wastewater temperature	^a𝑘COD, hr^−1	^b𝑘TOC, hr^−1
15°C	0.140	0.116
25°C	0.197	0.147
35°C	0.235	0.193

^asolar light intensity: 500 W/m²(UV_280−400nm: 66.5 W/m²).
^b𝑘_COD: pseudo-first-order rate constant based on the degradation of COD in solution.
^c𝑘_TOC: pseudo-first-order rate constant based on the degradation of TOC in solution.