Salt selected for hydrocarbon-degrading bacteria and enhanced hydrocarbon biodegradation in slurry bioreactors

Akbari, Ali; David, Carolyn A; Rahim, Arshath Abdul; Ghoshal, Subhasis

doi:10.1016/j.watres.2021.117424

Cited by 21 publications

(5 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Salinity can affect soil pH, ion exchange capacity, soil organic matter, and microbial biomass abundance, all of which influence the ability of the microbial community to degrade hydrocarbons in the soil (Zhang et al, 2019). Previous studies have reported higher levels of alkane degradation under saline conditions, including the use of halophilic bacteria strains and indigenous halotolerant hydrocarbon degraders (SadrAzodi et al, 2019;Akbari et al, 2021). Therefore, the observed alkane degradation in this study is likely attributed to the selection of halotolerant strains that are capable of alkane degradation.…”

Section: Fate Of Hydrocarbons -Alkanes and Pahsmentioning

confidence: 64%

“…The effects of the added substrate outweighed the impact of salinity, as microbial activity, and biomass, particularly fungi, increased significantly after rice straw addition (Wichern et al, 2020). Salinity may either select for halotolerant species or suppress microbial abundance (Akbari et al, 2021). Other studies have also observed an increase in the richness of fungal genera in saline soil amended microcosms (Sajid et al, 2023).…”

Section: Effects On the Microbial Groups' Relative Abundancementioning

confidence: 93%

See 1 more Smart Citation

Efficacy of Bioadmendments in Reducing the Influence of Salinity on the Bioremediation of Oil-Contaminated Soil

Atai¹,

Jumbo²,

Cowley³

et al. 2023

Preprint

View full text Add to dashboard Cite

Section: Fate Of Hydrocarbons -Alkanes and Pahsmentioning

confidence: 64%

Section: Effects On the Microbial Groups' Relative Abundancementioning

confidence: 93%

Efficacy of Bioadmendments in Reducing the Influence of Salinity on the Bioremediation of Oil-Contaminated Soil

Atai¹,

Jumbo²,

Cowley³

et al. 2023

Preprint

View full text Add to dashboard Cite

“…100 Therefore, bio-slurry remediation technology has become one of the popular remediation techniques for treating TPH-contaminated soils (Table 3). 101 The positive effect of carbon source addition during bioslurry remediation on the treatment performance of TPHcontaminated soil. 102 Two sets of parallel bio-slurry remediation experiments were conducted to study the effect of carbon sources on the degradation of TPH in marine sediments.…”

Section: Remediation Of Total Petroleum Hydrocarbons (Tph) Contaminat...mentioning

confidence: 99%

“… 100 Therefore, bio-slurry remediation technology has become one of the popular remediation techniques for treating TPH-contaminated soils ( Table 3 ). 101 …”

Section: Application Case Study Of Bio-slurry Remediation Technologymentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Oil contamination is usually accompanied by the stress pressure of high heavy metal concentration, salinity, etc. [ 11 , 12 , 13 ]. These problems are usually addressed by a selection of various HOB genera, species, and strains, which are relatively resistant to these stress factors, e.g., by using the relatively stress-resistant hydrocarbon-oxidizing Rhodococcus strains [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Ways of Long-Term Survival of Hydrocarbon-Oxidizing Bacteria in a New Biocomposite Material—Silanol-Humate Gel

et al. 2023

View full text Add to dashboard Cite

Immobilized bacterial cells are presently widely used in the development of bacterial preparations for the bioremediation of contaminated environmental objects. Oil hydrocarbons are among the most abundant pollutants. We have previously described a new biocomposite material containing hydrocarbon-oxidizing bacteria (HOB) embedded in silanol-humate gels (SHG) based on humates and aminopropyltriethoxysilane (APTES); high viable cell titer was maintained in this material for at least 12 months. The goal of the work was to describe the ways of long-term HOB survival in SHG and the relevant morphotypes using the techniques of microbiology, instrumental analytical chemistry and biochemistry, and electron microscopy. Bacteria surviving in SHG were characterized by: (1) capacity for rapid reactivation (growth and hydrocarbon oxidation) in fresh medium; (2) ability to synthesize surface-active compounds, which was not observed in the cultures stored without SHG); (3) elevated stress resistance (ability to grow at high Cu2+ and NaCl concentrations); (4) physiological heterogeneity of the populations, which contained the stationary hypometabolic cells, cystlike anabiotic dormant forms (DF), and ultrasmall cells; (5) occurrence of piles in many cells, which were probably used to exchange genetic material; (6) modification of the phase variants spectrum in the population growing after long-term storage in SHG; and (7) oxidation of ethanol and acetate by HOB populations stored in SHG. The combination of the physiological and cytomorphological properties of the cells surviving in SHG for long periods may indicate a new type of long-term bacterial survival, i.e., in a hypometabolic state.

show abstract

Salt selected for hydrocarbon-degrading bacteria and enhanced hydrocarbon biodegradation in slurry bioreactors

Cited by 21 publications

References 48 publications

Efficacy of Bioadmendments in Reducing the Influence of Salinity on the Bioremediation of Oil-Contaminated Soil

Efficacy of Bioadmendments in Reducing the Influence of Salinity on the Bioremediation of Oil-Contaminated Soil

Research progress of bio-slurry remediation technology for organic contaminated soil

Ways of Long-Term Survival of Hydrocarbon-Oxidizing Bacteria in a New Biocomposite Material—Silanol-Humate Gel

Contact Info

Product

Resources

About