Biodegradation of Oil Spill by Petroleum Refineries Using Consortia of Novel Bacterial Strains

Abstract

Feasibility study carried out at the site prior to the full scale study showed that the introduced bacterial consortium effectively adapted to the local environment of the soil at bioremediation site. The soil samples were collected from the contaminated fields after treatment with bacterial consortium at different time intervals and analyzed by gas chromatography after extraction with hexane and toluene. At time zero (just before initiation of bioremediation), the concentration of total petroleum hydrocarbons in the soil (25-cm horizon) of plot A, B, C and D was 30.90 %, 18.80 %, 25.90 % and 29.90 % respectively, after 360 days of treatment with microbial consortia was reduced to 0.97 %, 1.0 %, 1.0 %, and 1.1 % respectively. Whereas, only 5 % degradation was observed in the control plot after 365 days (microbial consortium not applied).

Natural rubber/reduced-graphene oxide composite materials: Morphological and oil adsorption properties for treatment of oil spills

“…Oil spills in the natural environment cause catastrophic effects on the environment and ecosystem [1], [2], [3]. Various methods have been developed to solve this serious problem, such as physical [4], [5], [6], [7], chemical [8], [9], [10], and biological [11], [12], [13] approaches. The physical adsorption by an adsorbent is considered to be an efficient technique for the treatment of oil spills because it is simple, environmentally friendly, and requires low costs.…”

Bioemulsification activity assessment of an indigenous strain of halotolerant Planococcus and partial characterization of produced biosurfactants

“…Either every single of or any given consortium of these bioscavengers is found at a given locations. Some are distributed in vast areas of the globe, in terrestrial and aquatic environments, fresh and seawater, as well as almost every climate, while others are restricted to some specific locations whose productive life depends on seasonality (Jain et al 2010;Menezes Bento et al 2005;Singh et al 2012). Biosurfactants are literally surfactants from biological sources.…”

Thermally expanded vermiculite as a risk-free and general-purpose sorbent for hazardous chemical spillages

“…These may pose a severe threat to the public and the environment. The risk of hazardous liquids has been reduced by various techniques, including dispersion (Kujawinski et al , 2011), in situ burning (Fritz, 2003), sorption (Melvold & Gibson, 1988; Chabot et al , 2014) and bioremediation (Singh et al , 2012). Most of these methods produce secondary chemical pollutants.…”