Bioaugmentation: Possible solution in the treatment of Bio-Refractory Organic Compounds (Bio-ROCs)

Semrany, Samer; Favier, Lidia; Djelal, Hayet; Taha, Samir; Amrane, Abdeltif

doi:10.1016/j.bej.2012.08.017

Cited by 102 publications

(64 citation statements)

References 85 publications

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“…5), which was much higher than that in E-0. Although indigenous strains were enriched from soils, the effect of bioaugmentation is evident from differences in both the changes in the microbial quantities and concentration decrease of sediment and plants in E-in. Biostimulation could encourage microorganisms to consume contaminants directly as energy and carbon sources, or indirectly by co-metabolism (Semrany et al 2012). Sucrose and KH 2 PO 4 were proved to be good accelerants in constructed wetland, which was consistent with former conclusion that organic matter and phosphorus are important factors to endosulfan distribution in soil (Zhao et al 2013).…”

Section: Evaluation Of Bioaugmentation or Biostimulation Treatmentsupporting

confidence: 75%

Bioremediation of endosulfan in laboratory-scale constructed wetlands: effect of bioaugmentation and biostimulation

Zhao

Xie

et al. 2014

Environ Sci Pollut Res

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Bioremediation is widely used in organic pollutants disposal. However, very little has been known on its application in constructed wetlands contaminated with organochlorine pesticide, endosulfan in particular. To evaluate the effect of bioremediation on endosulfan removal and clarify the fate, bioaugmentation and biostimulation were studied in laboratory-scale vertical-flow constructed wetlands. After 20 days' experiment, endosulfan isomers removal efficiencies were increased to 89.24-97.62 % through bioremediation. In bacteria bioaugmentation (E-in) and sucrose biostimulation (E-C), peak concentrations of endosulfan in sediment were reduced by 31.02-76.77 %, and plant absorption were 347.45-576.65 μg kg(-1). By contrast, plant absorption in KH2PO4 biostimulation (E-P) was increased to 811.64 and 1,067.68 μg kg(-1). Degradation process was probably promoted in E-in and E-C, while plant absorption was enhanced in E-P. Consequently, E-in and E-C were effective for endosulfan removal in constructed wetlands, while adding KH2PO4 had potential to cause air pollution. Additionally, combined bioremediation was not recommended.

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Section: Evaluation Of Bioaugmentation or Biostimulation Treatmentsupporting

confidence: 75%

Bioremediation of endosulfan in laboratory-scale constructed wetlands: effect of bioaugmentation and biostimulation

Zhao

Xie

et al. 2014

Environ Sci Pollut Res

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“…The varied response of microorganisms to the tested contamination was associated with their succession (Vázquez et al 2013) resulting from the death of sensitive microorganisms, and the multiplication of the resistant ones (Wu et al 2014). Changes to the multiplication of microorganisms in the soil contaminated with diesel oil may result from the fact that hydrocarbons, as the chemical compounds with a various degree of bioresistance, are degraded at different rates, and they have an effect on the soil microbiota in consequence (Semrany et al 2012).…”

Section: Resultsmentioning

confidence: 99%

Response of Avena sativa, microorganisms and enzymes to contamination of soil with diesel oil

Wyszkowska¹,

Borowik²,

Kucharski³

2015

PLANT SOIL ENVIRON

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The scale of the impact of petroleum products on the natural environment is still difficult to determine. This is why it was decided to conduct tests, under the conditions of a pot experiment, for the effects of diesel oil (0, 4, and 8 mL/kg dry matter of soil) on the yield of oat, content of macroelements, as well as the microbiological, biochemical, physicochemical and chemical properties of the soil. The study results showed that diesel oil had an adverse effect on the growth and development of oat, and contents of nitrogen, sodium, calcium and magnesium in the above-ground parts of oat. Diesel oil increased the concentration of the following substances in the soil: naphthalene, phenanthrene, anthracene, benz[a]anthracene, chrysene, benzo[a]fluoranthene, benzo[a]pyrene and benzo[ghi]perylene, organic carbon, total nitrogen, and available potassium, while it decreased the concentration of available phosphorus and magnesium in the soil. Changes in the physicochemical properties of the soil had an unfavourable effect on the microbiological and biochemical properties. As regards the 7 tested enzymes, the most sensitive to diesel oil was catalase, and the least sensitive ones were ß-glucosidase and dehydrogenases. As for 12 various tested microorganisms, bacteria of the Azotobacter genus exhibited the highest resistance, while copiotrophic bacteria the lowest.

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“…Among them, bioaugmentation (addition of starter cultures) and biostimulation (addition of nutrients) were considered as relevant bioremediation approaches. [15,16] They have been usually proposed as viable bioremediation techniques for the clean-up of different organic pollutants, especially for biorecalcitrant ones.…”

Section: Introductionmentioning

confidence: 99%

Potential of newly isolated wildStreptomycesstrains as agents for the biodegradation of a recalcitrant pharmaceutical, carbamazepine

Popa

Favier

Dinică

et al. 2014

Environmental Technology

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Carbamazepine (CBZ) is a recalcitrant xenobiotic pharmaceutical pollutant highly stable in soil and wastewater during treatment. The biodegradation of CBZ using streptomycetes has been few studied up to now. Sixteen newly filamentous bacteria belong to genus Streptomyces spp. isolated from different Romanian soil samples and three strains from a collection of microorganisms (MIUG) were morphologically characterized, tested based on their resistance against CBZ toxicity and then selected as agents for bioremediation. Five Streptomyces spp. strains coded MIUG 4.88, MIUG 4.89, SNA, LP1 and LP2 showed CBZ tolerance at all of the tested concentrations, i.e. 0.05, 0.2, 1, 5 and 8 mg L⁻¹. Two of these (MIUG 4.89 and SNA strains) were selected based on their resistance to target compound and were then assessed for CBZ biodegradation. The strain Streptomyces MIUG 4.89 showed an interesting efficiency for CBZ removal, with a yield of 35% when it was cultivated in submerged conditions on a minimal medium supplemented with 5 g L⁻¹ glucose. This ability was linked to extracellular laccase production. These results are promising for the use of these filamentous bacteria as bioremediation agents.

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Bioaugmentation: Possible solution in the treatment of Bio-Refractory Organic Compounds (Bio-ROCs)

Cited by 102 publications

References 85 publications

Bioremediation of endosulfan in laboratory-scale constructed wetlands: effect of bioaugmentation and biostimulation

Bioremediation of endosulfan in laboratory-scale constructed wetlands: effect of bioaugmentation and biostimulation

Response of Avena sativa, microorganisms and enzymes to contamination of soil with diesel oil

Potential of newly isolated wildStreptomycesstrains as agents for the biodegradation of a recalcitrant pharmaceutical, carbamazepine

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