Figure 4:
Effect of 10 mg/L Suwannee River Fulvic Acid on DNB degradation,
C0=50 mg DNB/L.
Fulvic acid with 1.0 mg/mL TiO
2
;
Fulvic acid.
Fulvic acid with 1.0 mg/mL TiO2; 
Fulvic acid. Fulvic acid with 1.0 mg/mL TiO2; Fulvic acid.