Biodegradation of Spilled Diesel Fuel in Agricultural Soil: Effect of Humates, Zeolite, and Bioaugmentation

Figure 1

Typical time course of biodegradation process (variant XIII—bioaugmented soil with addition of zeolite and humate from oxyhumolite 150 mg/kg dry weight). Average values ± standard deviation are plotted. (a) Concentration of C₁₀–C₄₀ and pristane/C₁₇ ratio (b) Soil respiration and dehydrogenase activity. (c) Soil PLFA and pH.

(a)

(b)

(c)