Improvement of Bioremediation Performance for the Degradation of Petroleum Hydrocarbons in Contaminated Sediments

Table 2

Operating conditions in the anaerobic pretreatments (Table 1 shows factors and levels).

Treatments	Sodium acetate	Treatment length (days)	Sulfate reducing prokaryotes
1	no	30	no
2	yes	30	no
3	no	60	no
4	yes	60	no
5	no	30	yes
6	yes	30	yes
7	no	60	yes
8	yes	60	yes