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International Journal of Photoenergy
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International Journal of Photoenergy
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2012
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Article
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Tab 2
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Research Article
Pretreatment of Color Filter Wastewater towards Biodegradable by Fresnel-Lens-Assisted Solar TiO
2
Photocatalysis
Table 2
Experimental range and levels of the process parameters in this study.
Factor
Range and level
Independent variable
−1
0
+1
Initial pH
5
7.5
10
TiO
2
dose, g/L
0.5
1.0
1.5
Reaction time, hr
1
2
3
Y
(response) – BOD
5
/COD