Effect of DEHP on SCFA Production by Anaerobic Fermentation of Waste Activated Sludge

Figure 5

Concentration of various indicator substances in water distribution experiment concentration in 5 d of fermentation time measured in the fermentation reactors with alkaline pretreatment in the presence of different DEHP contents. (a) Protein; (b) total amino acid; (c) butyrate; and (d) acetate. Error bars represent standard deviations of triplicate tests.

(a)

(b)

(c)

(d)