Abstract
Bioremediation of Petroleum Hydrocarbons in Crude Oil Contaminated Soil from Wonocolo Public Oilfields using Aerobic Composting with Yard Waste and Rumen Residue Amendments
Highlights
Wonocolo public oilfields, which inadequately operated since 1942, was one of the crude oil sources in Indonesia [1]
The physicochemical properties of composting process fluctuated during 150 days which indicates bacterial activity
The carbon and nitrogen (C/N) ratio of Contaminated Soil (CS) indicated that crude oil contaminated soil was reasonable for composting process, which the criteria was ranged from 15-30 [33]
Summary
Wonocolo public oilfields, which inadequately operated since 1942, was one of the crude oil sources in Indonesia [1]. The spills of crude oil from exploitation activities such as drilling, transportation, and refining caused soil pollution by Total Petroleum Hydrocarbon. As reported by Handrianto et al [1], the TPH concentration in soil at Wonocolo public oilfields was 41,200 mg/kg which exceeded the quality standards of 10,000 mg/kg in Indonesia [2], Texas, Lousiana, Colorado, and Michigan [3]. Our previous study confirmed that the topsoil of transportation, refining, and old well area at Wonocolo public oilfields were highly polluted by TPH of 52,328, 76,752 and 107,189 mg/kg, respectively [4]. There have been found soil contamination by lead (Pb), chromium (Cr), and mercury (Hg) in the ranged of 0.07-0.10, 0.02-0.03, and 0.05-0.06 mg/g, respectively [5]
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