Combined use of earthworm (<i>Alma millsoni</i>) and bacterium (<i>Bacillus</i>sp.) improved the bioremediation of spent engine oil contaminated soil

Adeyi, Akindele Oluwatosin; Nneji, Lotanna M.; Adeyi, Esther Olubisi; Somade, Oluwatobi T.; Agbaogun, Babatunde Kazeem

doi:10.1080/02757540.2018.1472247

Cited by 6 publications

(1 citation statement)

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“…The added advantage of this technique over conventional ones is that it converts the pollutants into less toxic components and often completely degrades the pollutants into their natural elemental forms. It was studied from several research outcomes that bioremediation involves low recurring investment, which in turn reduces the treatment cost per unit volume of wastewater generation [8,9]. The primary objective of this present study was to understand the efficiency of wetland microbiota’s bioremediation capability on the removal of oil from oil-water homogeneous mixture in control to free oil.…”

Section: Introductionmentioning

confidence: 99%

Strategic in vitro bioaugmentation of indigenous Actinobacteria isolated from east Kolkata wetlands (Ramsar site) to degrade highly toxic waste engine oil in free and emulsified state

Bhattacharya¹,

Putatunda²,

Mazumder³

et al. 2022

Preprint

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The present study investigates the bioremediation of waste engine oil at both dissolved or being suspended in oily wastewater using an actinobacterium, Gordonia terrae DSM 43249 strain isolated from East Kolkata wetlands. The isolated strain was found capable of sustaining in highly toxic oil contaminated wastewater and simultaneously can efficiently biodegrade the pollutants in both simulated fresh and marine water system at optimized environmental conditions. Moreover, in order to understand the effect of physical presence of oil in oily wastewater on the bioremediation process, three types of simulated oil-water forms were studied: water with free waste engine oil, oil-water mixture in the form of coarse emulsion and microemulsion. It was observed that the percentage degradation became maximum with the microemulsion form (72.73%) followed by the coarse one (65.45%). The minimum percentage degradation of 39.74% was seen with the free oil. Statistical interpretation also revalidates the experimental observations, showing that the oil percentage degradation is much sensitive to the oil and water composition in an oily-water system (F=772.64> Fcritical =5.143). Hence, it is presumed from the present study that such a high percentage degradation of oil especially, when oil is thoroughly mixed with water, can be considered as one of the potential applications for oil treatment such as during oil spillage using G.terrae DSM 43249.

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Section: Introductionmentioning

confidence: 99%