Biodegradation of Weathered Petroleum Hydrocarbons Using Organic Waste Amendments

Table 2

Selected chemical characteristics of soil and amendments, mesocosm study.

Treatment	pH	EC (mS/cm)	C (%)	N (%)	Bray-1 P (mg/kg)
Papermill sludge	9.80 ± 0.29	3.34 ± 0.34	33.36 ± 2.28	4.99 ± 0.41	6.05 ± 0.35
Molasses	7.46 ± 0.31	7.53 ± 0.35	89.17 ± 1.34	1.72 ± 0.22	4.50 ± 0.23
Activated carbon	8.82 ± 0.34	1.14 ± 0.27	85.46 ± 2.05	0.388 ± 0.31	5.91 ± 0.25
Plant compost	8.23 ± 0.22	3.88 ± 0.26	52.74 ± 2.17	0.401 ± 0.12	64.73 ± 0.40
Noncontaminated soil	7.65 ± 0.16	1.37 ± 0.31	0.69 ± 0.34	0.453 ± 0.25	3.52 ± 0.36
Contaminated soil	7.24 ± 0.37	5.23 ± 0.29	1.98 ± 0.42	0.06 ± 0.02	1.55 ± 0.17