Remediation of a soil chronically contaminated with hydrocarbons through persulfate oxidation and bioremediation

Medina, Rocío; Gara, Pedro Maximiliano David; Fernández-González, Antonio José; Rosso, Janina A.; Panno, María Teresa Del

doi:10.1016/j.scitotenv.2017.10.326

Cited by 72 publications

(44 citation statements)

References 102 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This may be because more biodegradable byproducts were produced after the PAHs were exposed to the modified Fenton oxidants. Some initially non-dominant microbes may use the PAH oxidizing byproducts, leading to increased microbial diversity (Medina et al, 2018). Sutton et al (2014) also indicated that bacterial diversity temporarily increased after the addition of modified Fenton reagent.…”

Section: Effect Of Oxidants On Indigenous Soil Microbial Diversitymentioning

confidence: 99%

“…Sutton et al (2014) indicated that no significant biological activity was measured in permanganate and persulfate-treated microcosms. On the other hand, although chemical oxidation can temporarily reduce microbial activity, bacterial populations do regenerate contaminant degradation ability in the soil (Medina et al, 2018). The oxidants which involving H 2 O 2 and citric acid can significantly increase microbe respiration, accompanied by an increase in microbial population.…”

Section: Effect Of Oxidants On Indigenous Soil Microbial Populationmentioning

confidence: 99%

See 1 more Smart Citation

Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs

Liao

et al. 2019

Chemosphere

View full text Add to dashboard Cite

Chemical oxidation is a promising pretreatment step coupled with bioremediation for removal of polycyclic aromatic hydrocarbons (PAHs). The effectiveness of Fenton, modified Fenton, potassium permanganate and activated persulfate oxidation treatments on the real contaminated soils collected from a coal gas plant (263.6 ± 73.3 mg kg −1 of the Σ16 PAHs) and a coking plant (385.2 ± 39.6 mg kg −1 of the Σ16 PAHs) were evaluated. Microbial analyses showed only a slight impact on indigenous microbial diversity by Fenton treatment, but showed the inhibition of microbial diversity and delayed population recovery by potassium permanganate reagent. After potassium permanganate treatment, the microorganism mainly existed in the soil was Pseudomonas or Pseudomonadaceae. The results showed that total organic carbon (TOC) content in soil was significantly increased by adding modified Fenton reagent (1.4%-2.3%), while decreased by adding potassium permanganate (0.2%-1%), owing to the nonspecific and different oxidative properties of chemical oxidant. The results also demonstrated that the removal efficiency of total PAHs was ordered: permanganate (90.0%-92.4%) > activated persulfate (81.5%-86.54%) > modified Fenton (81.5%-85.4%) > Fenton (54.1%-60.0%). Furthermore, the PAHs removal efficiency was slightly increased on the 7th day after Fenton and modified Fenton treatments, about 14.6%, and 14.4% respectively, and the PAHs removal efficiency only enhanced 4.1% and 1.3% respectively from 1st to 15th day after potassium permanganate and activated persulfate treatments. The oxidants greatly affect the growth of soil indigenous microbes, which cause further influence for PAHs degradation by bioremediation.

show abstract

Section: Effect Of Oxidants On Indigenous Soil Microbial Diversitymentioning

confidence: 99%

Section: Effect Of Oxidants On Indigenous Soil Microbial Populationmentioning

confidence: 99%

Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs

Liao

et al. 2019

Chemosphere

View full text Add to dashboard Cite

show abstract

“…The final sequence data were grouped into operational taxonomic units (OTUs) divided by a genetic distance of 3% using the average neighbor method. Hill numbers, 0 H (richness), 1 H (diversity) and 2 H (equitability) were used to compare bacterial alpha diversity [34,35] and were calculated using Mothur software (version 1. 35.1, University of Michigan, Ann Arbor, MI, USA) [30].…”

Section: Bacterial Community: Structure and Diversitymentioning

confidence: 99%

Microbial Endophytes that Live within the Seeds of Two Tomato Hybrids Cultivated in Argentina

et al. 2018

View full text Add to dashboard Cite

Tomato (Solanum lycopersicum L.) is probably the most important vegetable consumed around the world, and like other produce is affected by stresses and diseases that reduce the yield and production. The purpose of this work was to study the phytobiome of the tomato seeds of two hybrids in order to understand first of all whether tomato cultivars host similar groups of organisms, as well as their effect on the community structure, particularly of those microbes with the potential to promote growth and/or control plant pathogens. Different cultivars of tomato (genotypes) host significantly different endophytic communities, which is also reflected at the order level. These communities are particularly rich in spore-forming bacteria that have the ability either to promote plant growth or synthetize antimicrobial compounds that deter plant pathogens. We conclude that the seeds of the tomato cultivars Elpida and Silverio are sources of endophytic bacteria capable of synthetizing antifungal substances that could potentially be used for biocontrol against plant-pathogenic fungi.

show abstract

“…In the last 15 years (2004-2019), bioremediation mediated by Streptomyces became very important, especially in the case of hydrocarbons [56], organochlorine compounds used in agriculture [64][65][66][67][68][69][70], heavy metals [71][72][73][74][75][76][77], and in the reclamation of environments with naturally high concentrations of salt or toxic compounds such as boron [6,78,79].…”

Section: Streptomyces In Bioremediationmentioning

confidence: 99%

Potential of Bioremediation and PGP Traits in Streptomyces as Strategies for Bio-Reclamation of Salt-Affected Soils for Agriculture

et al. 2020

View full text Add to dashboard Cite

Environmental limitations influence food production and distribution, adding up to global problems like world hunger. Conditions caused by climate change require global efforts to be improved, but others like soil degradation demand local management. For many years, saline soils were not a problem; indeed, natural salinity shaped different biomes around the world. However, overall saline soils present adverse conditions for plant growth, which then translate into limitations for agriculture. Shortage on the surface of productive land, either due to depletion of arable land or to soil degradation, represents a threat to the growing worldwide population. Hence, the need to use degraded land leads scientists to think of recovery alternatives. In the case of salt-affected soils (naturally occurring or human-made), which are traditionally washed or amended with calcium salts, bio-reclamation via microbiome presents itself as an innovative and environmentally friendly option. Due to their low pathogenicity, endurance to adverse environmental conditions, and production of a wide variety of secondary metabolic compounds, members of the genus Streptomyces are good candidates for bio-reclamation of salt-affected soils. Thus, plant growth promotion and soil bioremediation strategies combine to overcome biotic and abiotic stressors, providing green management options for agriculture in the near future.

show abstract

Remediation of a soil chronically contaminated with hydrocarbons through persulfate oxidation and bioremediation

Cited by 72 publications

References 102 publications

Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs

Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs

Microbial Endophytes that Live within the Seeds of Two Tomato Hybrids Cultivated in Argentina

Potential of Bioremediation and PGP Traits in Streptomyces as Strategies for Bio-Reclamation of Salt-Affected Soils for Agriculture

Contact Info

Product

Resources

About