Integrating Electrokinetic and Bioremediation Process for Treating Oil Contaminated Low Permeability Soil

• Published in: E3S web of conferences Vol. 31; p. 3005
• Main Authors: Surya Ramadan, Bimastyaji, Jatnika Effendi, Agus, Helmy, Qomarudin
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 01-01-2018
• Subjects: Alternative technology; Bioremediation; Contamination; Crude oil; Electrokinetics; Environmental regulations; Hydrocarbons; Microorganisms; Molecular chains; Oil pollution; Permeability; Soil contamination; Soil improvement; Soil permeability; Soil pollution
• ISSN: 2267-1242; 2555-0403; 2267-1242
• DOI: 10.1051/e3sconf/20183103005

Traditional oil mining activities always ignores environmental regulation which may cause contamination in soil and environment. Crude oil contamination in low-permeability soil complicates recovery process because it requires substantial energy for excavating and crushing the soil. Electrokinetic technology can be used as an alternative technology to treat contaminated soil and improve bioremediation process (biostimulation) through transfer of ions and nutrient that support microorganism growth. This study was conducted using a combination of electrokinetic and bioremediation processes. Result shows that the application of electrokinetic and bioremediation in low permeability soils can provide hydrocarbon removal efficiency up to 46,3% in 7 days operation. The highest amount of microorganism can be found in 3-days operation, which is 2x10
8
CFU/ml using surfactant as flushing fluid for solubilizing hydrocarbon molecules. Enhancing bioremediation using electrokinetic process is very potential to recover oil contaminated low permeability soil in the future.