Remediation of oily sludge wastes using biosurfactant produced by bacterial isolate Pseudomonas balearica strain Z8

Nejad, Yaser Soltani; Jaafarzadeh, Neematollah; Abtahi, Mehrnoosh; Ghafari, Shokouh; Jorfi, Sahand

doi:10.1007/s40201-020-00480-1

Cited by 16 publications

(1 citation statement)

References 35 publications

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“…are utilized for the treatment and management of oily sludge; but such processes are usually expensive, high energy consuming, and can also lead to the generation of secondary pollutants that can add additional threat to the environment (Hamidi et al 2021). Utilization of potential ubiquitous microbes to detoxify the sludge is an alternative approach towards degradation of sludge which is gaining attraction in the recent years, due to its clean and cost effective nature (Nejad et al 2020). Microbes use the oily waste as energy sources and ultimately degrade them into simpler non hazardous forms.…”

Section: Introductionmentioning

confidence: 99%

Concurrent degradation of petroleum sludge and simultaneous rhamnolipid biosurfactant production: An aesthetic bioremediation approach

Patowary

Rajbongshi

Devi

et al. 2023

Preprint

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Petroleum sludge is uncontrollably released in oil field and refineries which can lead to deleterious effect on the environment, as it consists of components of emerging concern such as PAHs, BTEX components, heavy metals, asphaltenes etc. In the present study, a novel bacterium Enterobacter cloacae AR-IASST (01), that have the potential to produce biosurfactant (surface tension reduced to 26.4 mN/m) was utilized to degrade petroleum sludge. A degradation of 86.9% was achieved after 5 days of culture incubation and biosurfactant production was also observed during the degradation process of sludge. In the GC-MS analysis, the peaks numbers reduce from 184 to 13 in the treated sample and complete degradation of PAHs present in the sludge was observed. The biosurfactant was characterized to be rhamnolipid in nature. The biosurfactant exhibited attractive emulsification towards several oils and an E24 of 100% was achieved against crude oil. The biosurfactant was found to be stable over a wide range of temperature, and salt concentration, although it showed sensitivity in high acidic condition. Furthermore, it was found that the bacterial treatment also led to the removal of heavy metals (Ni), zinc (Zn), lead (Pb), iron (Fe), chromium (Cr), copper (Cu), present in the sludge sample. Thus, the present study reveals that the novel bacterium is very potential and can be widely used for restoration of petroleum sludge contaminated sites in future.

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Section: Introductionmentioning

confidence: 99%

Concurrent degradation of petroleum sludge and simultaneous rhamnolipid biosurfactant production: An aesthetic bioremediation approach

Patowary

Rajbongshi

Devi

et al. 2023

Preprint

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Development of shampoo formulations using plant/microbial biosurfactants as an alternative to shampoos formulated with harsh synthetic surfactants

Samadi,

Amani,

Najafpour

et al. 2024

J Surfact & Detergents

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The presence of harmful chemical surfactants such as sodium lauryl sulfate (SLS) in healthcare products is a challenge that world is facing today. The present study aimed to formulate novel green shampoos using rhamnolipid and saponin instead of chemical surfactants, and comparison with commercial shampoos. Biosurfactants were confirmed by thin layer and high‐performance liquid chromatography, Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, and their performance was evaluated by zone inhibition and critical micelle concentration (CMC). The saponin and rhamnolipid reduced the surface tension (ST) of water from 72 to 40 and 30 mN/m at their CMCs, respectively. Four novel shampoo formulations were made with SLS, rhamnolipid, saponin, and a mixture of rhamnolipid and saponin. The green shampoos were evaluated with tests of color, odor, transparency, pH, ST, detergency, solid content, foam type, foam volume, wetting time and microbial contamination standard to determine the physicochemical properties. The green formulations with rhamnolipid, saponin and mixture of rhamnolipid and saponin were clear and transparent with a good odor. Low ST (34.13, 38.83, and 31.73 mN/m), good detergency (63.87%, 57.74%, and 64.45%), comparable solid contents (25.11%, 26.95%, and 27.50%), good wetting time (160, 165, and 153 s), and good foam stability even after 60 min were observed for three green shampoos, respectively. Based on the results, it can be concluded that these green shampoos can compete with commercial shampoos and be a suitable alternative to chemical shampoos containing sulfate and sulfate‐free, especially for children, people with eye and skin sensitivities and with oily hair.

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Recycling, Re-using, Regeneration, and Recovering of Value-Added Products Petroleum Hydrocarbons Through Circular Economic-Based Approaches

Basak

2023

Environmental Science and Engineering

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Remediation of oily sludge wastes using biosurfactant produced by bacterial isolate Pseudomonas balearica strain Z8

Cited by 16 publications

References 35 publications

Concurrent degradation of petroleum sludge and simultaneous rhamnolipid biosurfactant production: An aesthetic bioremediation approach

Concurrent degradation of petroleum sludge and simultaneous rhamnolipid biosurfactant production: An aesthetic bioremediation approach

Development of shampoo formulations using plant/microbial biosurfactants as an alternative to shampoos formulated with harsh synthetic surfactants

Recycling, Re-using, Regeneration, and Recovering of Value-Added Products Petroleum Hydrocarbons Through Circular Economic-Based Approaches

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