Bioremediation Journal

Publisher: Taylor & Francis

Description

Bioremediation Journal is a peer-reviewed, quarterly journal that publishes original laboratory and field research in bioremediation, the use of biological and supporting physical treatments to treat contaminated soil and groundwater. The journal provides rapid dissemination of new information on emerging and maturing bioremediation technologies and integrates scientific research and engineering practices.

  • Impact factor
    0.40
  • 5-year impact
    0.00
  • Cited half-life
    0.00
  • Immediacy index
    0.12
  • Eigenfactor
    0.00
  • Article influence
    0.00
  • Website
    Bioremediation Journal website
  • Other titles
    Bioremediation journal
  • ISSN
    1088-9868
  • OCLC
    34795756
  • Material type
    Periodical, Internet resource
  • Document type
    Journal / Magazine / Newspaper, Internet Resource

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 month embargo for STM, Behavioural Science and Public Health Journals
    • 18 month embargo for SSH journals
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • Pre-print on authors own website, Institutional or Subject Repository
    • Post-print on authors own website, Institutional or Subject Repository
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • Publisher will deposit to PMC on behalf of NIH authors.
    • STM: Science, Technology and Medicine
    • SSH: Social Science and Humanities
    • 'Taylor & Francis (Psychology Press)' is an imprint of 'Taylor & Francis'
  • Classification
    ​ yellow

Publications in this journal

  • Bioremediation Journal 12/2014;
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    ABSTRACT: ABSTRACT The marine environment is the most dynamic and most variable among the natural environments present on the globe due to its continuously changing patterns of salinity, sea surface temperature, pH, and pressure. Thus, bacteria inhabiting this environment possess the inbuilt mechanisms of adaptation necessary in such fluctuating environmental conditions, and the harboring of heavy metal–resistant genes adds to their efficiency with regard to metal remediation compared with their terrestrial counterparts. Two highly mercury-resistant isolates, one from the marine environment and another from steel industry waste, were identified as Bacillus thuringiensis PW-05 and Bacillus sp. SD-43, respectively, by 16S rRNA gene sequence analysis. When various characters of these two isolates, e.g., biochemical, morphological, antibiotic resistance, and tolerance to other heavy metals, were analyzed, they were found to share common features. However, the marine Bacillus isolate (PW-05) was found to be more capable than its terrestrial counterpart in terms of mercury volatilization capability, i.e., 94.72% in the case of PW-05 and 60.06% in the case of SD-43. Hence, marine bacteria can be used more efficiently than their terrestrial counterparts for enhanced bioremediation of mercury in contaminated envi-ronments.
    Bioremediation Journal 07/2014; 18(3).
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    ABSTRACT: An aerobic mixed culture collected in the form of activated sludge was enriched for Cr(VI) reduction. An indigenous microorganism was isolated from the enriched aerobic mixed culture and identified as Pseudomonas taiwanensis. Bioremediation studies were carried out for treating Cr(VI)-contaminated wastewater using the indigenous microorganism. The kinetic studies were carried out for initial Cr(VI) concentrations ranging from 20 to 200 mg L−1. The maximum consumption of Cr(VI) obtained was 108.3 mg L−1 for an initial Cr(VI) concentration of 150 mg L−1 at a solution pH of 7.0. The effect of nutrient dosage and pH were studied to get their optimum values. The same isolated bacterial strain was also used to treat Cr(VI)-contaminated industrial wastewater collected from a local plating industry. Various growth kinetic models, such as Monod, Powell, Haldane, Luong, and Edward models, were fitted with the obtained experimental data. The obtained results for different growth kinetic models indicate that the growth kinetics of Pseudomonas taiwanensis for bioremediation of Cr(VI) can be better understood by the Luong model (R 2 = .913). The rate kinetic analysis was performed using zero-order and three-half-order kinetic models. The three-half-order kinetic model was found to be suitable for the present bioremediation study.
    Bioremediation Journal 07/2014; 18(3).
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    ABSTRACT: Imidacloprid (IMI), a potent insecticide, belongs to the neonicotinoid family and is of great concern due to the fact that its persistence in the soil is a threat to both plants and vertebrates. The present study was aimed at the isolation and characterization of a bacterial strain from paddy field soil at Punjab (India), which has a history of 9–10 years of imidacloprid contamination. Among the various isolates, a soil bacterium was selected and identified by 16S rRNA gene sequencing as Enterobacter sp. strain ATA1. It grew well in pH ranging from 6.0 to 7.0 at 37°C, and it was found to be a competent bacterium for the degradation of IMI. The presence of glucose in minimal salt medium (MMG; 0.1% w/v) as compared with any other co-substrate provokes the dissipation of IMI as a co-metabolite. Initially, incubation of IMI for 72 h in the MMG resulted in 30–40% degradation; thereafter, no significant change in its amount was found until 15 days of incubation, which explains the disappearance of any viable cells in the medium. Among the various identified metabolites, imidacloprid urea (m/z = 212) and imidacloprid guanidine (m/z = 211) were found to be the end products of IMI degradation, whereas others remained unidentified (m/z = 99 and m/z = 119).
    Bioremediation Journal 07/2014; 18(3).
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    ABSTRACT: A pure strain of Microbacterium lacticum DJ-1 capable of anaer-obic biodegradation of ethylbenzene was isolated from soil contaminated with gasoline. Growth of the strain and biodegradation of ethylbenzene in batch cultures led to stoichiometric reduction of nitrate. M. lacticum DJ-1 could degrade 100 mg L−1 of ethylbenzene completely, with a maximum degradation rate of 15.02 ± 1.14 mg L−1 day−1. Increasing the initial concentration of ethy-lbenzene resulted in decreased degradative ability. The cell-specific growth rates on ethylbenzene conformed to the Haldane–Andrew model in the substrate level range of 10–150 mg L−1. Kinetic parameters were determined by nonlinear regression on specific growth rates and various initial substrate concentrat-ions, and the values of the maximum specific growth rate, half saturation constant, and inhibition constant were 0.71 day−1, 34.3 mg L−1, and 183.5 mg L−1, respectively. This is the first report of ethylbenzene biodegradation by a bacterium of Microbacterium lacticum under nitrate-reducing conditions.
    Bioremediation Journal 07/2014; 18(3).
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    ABSTRACT: The present study is aimed at the naphthalene degradation with and without biosurfactant produced from Pseudomonas aeruginosa isolated from oil-contaminated soil. The present study was carried out to isolate the bacterial strains for the naphthalene degradation and also for biosurfactant production. The isolated strains were screened for their ability to degrade the naphthalene by the methods of optimum growth rate test and for the production of biosurfactants by cetyltrimethylammonium bromide, blood agar medium, and thin-layer chromatography. The present study also focused on the effect of biosurfactant for the degradation of naphthalene by isolate-1. Two bacterial strains were isolated and screened, one for biodegradation and another for biosurfactant production. The second organism was identified as Pseudomonas aeruginosa by 16S rRNA analysis. The purified biosurfactant reduces the surface tension of water and also forms stable emulsification with hexadecane and kerosene. The end product of naphthalene degradation was estimated as salicylic acid equivalent by spectrophotometric method. The results demonstrated that Pseudomonas aeruginosa has the potential to produce biosurfactant, which enhances the biodegradation of naphthalene. The study reflects the potential use of biosurfactants for an effective bioremediation in the management of contaminated soils.
    Bioremediation Journal 07/2014; 18(3).
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    ABSTRACT: The adsorption potential of a nonliving alga Nostoc comminutum for the removal of hazardous dyes from aqueous solutions was assessed. The algal biomass in its native form exhibited the highest dye removal efficiency at a pH of 1 and at a contact time of 50 min. The effect of various chemical pretreatments was studied in order to assess the role of surface chemistry and the underlying mechanism. Combined with Fourier transform infrared (FTIR) studies, it was concluded that the carboxylic and amine groups played a dominant role in the dye binding process. pH studies further revealed that besides the electrostatic mechanism, other physical interactions might be operative, which is also revealed from the Dubinin-Radushkevich (D-R) isotherm model. Kinetic studies indicated that the adsorption process followed the second-order kinetics and particle diffusion mechanisms were operative. Thermodynamic studies revealed that the adsorption of two dyes onto the algal biomass was feasible, spontaneous, and exothermic under the studied conditions. Microwave irradiation was proposed as a green method for the regeneration and reuse of the biomass. A 16% loss in the regeneration efficiency of the biosorbent was observed, which reveals its stability and reuse potential. Column experiments with real textile wastewater established the practicality of the developed system. Finally, a comparative study revealed the efficacy of the biosorbent with other previously reported biosorbents for dye removal.
    Bioremediation Journal 07/2014; 18(3).
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    ABSTRACT: ABSTRACT The present study endeavors to isolate a nickel (Ni)-resistant bacterial strain from an industrial waste–contaminated soil sample and to characterize the strain with a view to identify it and to assess its ability to remove Ni from the medium or detoxify it. The final objective is to use the strain as an agent to bioremediate Ni contamination. As an outcome, a Ni-resistant bacterial strain (KUNi1) had been isolated from such a soil that could tolerate a maximum of 7.5 and 10 mM Ni concentrations, depending on the type of medium used. The strain also showed multimetal resistance. It was found to be resistant to zinc (Zn), copper (Cu), cobalt (Co), and cadmium (Cd). However, the degree of resistance to the individual metal was variable, as determined by assessing the minimum inhibitory concentration (MIC) of each metal against the strain. The order of resistance was Ni > Zn ¼ Cu ¼ Co > Cd. The strain removed a significant percentage (82%) of Ni from the medium during in vitro culture, whereas dead cell mass had an insignificant role in Ni removal. The quantum of Ni removal by the strain was interfered with when the other metals (Zn, Cu, Co, and Cd) were present either singly with Ni or in combination with other metals. However, the degree of interference varied with individual metal. The factors that influenced the quantum of Ni removal were ambient pH, initial cell density, and presence of other toxic metals. The strain was identified as Bacillus thuringiensis on the basis of its biochemical characteristics and 16s rDNA sequence analysis. KEYWORDS Bacillus thuringiensis, nickel removal INTRODUCTION
    Bioremediation Journal 04/2014;
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    ABSTRACT: This is the first report on optimization of process variables for simultaneous bioremediation of PCP and Cr6+ employing traditional and response surface methodology (RSM). In a one-factor-at-a-time approach, the effect of PCP levels exhibited maximum bacterial growth, Cr6+ (82%) and PCP (91.5%) removal at initial 100 mg PCP l-1 with simultaneous presence of 200 mg Cr6+ l-1 within a 36 h incubation. However, at varied Cr6+ concentrations, maximum growth, Cr6+ (97%) and higher PCP (59%) removal were achieved at 50 mg Cr6+ l-1 with simultaneous presence of 500 mg PCP l-1 within a 36 h incubation. The Box-Behnken design suggested 100% Cr6+ and 95% PCP remediation at 36 h under optimum conditions of 75 mg PCP and 160 mg Cr6+ l-1, pH 7.0 and 35°C; Cr6+ removal further enhanced to 97% in bioreactor trial. FT-IR analysis revealed the likely involvement of hydroxyl, amide, and phosphate groups in Cr3+ binding. SEM-EDS showed biosorption of reduced chromium on bacterial cell surface. This isolate can be employed for eco-friendly and effective in situ bioremediation of Cr6+ and PCP simultaneously.
    Bioremediation Journal 03/2014;
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    ABSTRACT: ABSTRACT Biosorptive treatment using algal biomass of Rhizoclonium riparium was proposed for higher-loading gray water for its effective utilization. A batch sorption study was conducted using composite wastewater having a wide range of initial chemical oxygen demand (COD) values (2400–44,800 mg/L). The study showed an optimum dose of 5 g/L of biosorbent resulted in 96% reduction of COD for wastewater with an initial COD of 10,500 mg/L. The equilibrium isotherm data at different temperatures were fitted to linear and nonlinear isotherms. Biosorption kinetics was studied by various kinetic models. Chemical composition and surface morphology of the biosorbent were characterized by infrared, x-ray diffraction, and scanning electron microscopy techniques before and after biosorption. Applicability of the biosorbent-treated wastewater in agricultural uses was explored by studying the effect of untreated and treated wastewater on the germination of two seeds, i.e., Vigna radiata and Lens esculenta, and subsequently the activity of peroxidase (POD) enzymes were studied to understand the toxicity in plants. The study revealed that compared with seeds treated with different dilutions of untreated wastewater, germination (%) was significantly higher for biosorbent-treated wastewater, with a reduced level of POD activity, indicating positive response of the seeds towards the biosorptive treatment. KEYWORDS algal biomass, biosorption, COD removal, gray water, seed germination, wastewater reuse
    Bioremediation Journal 01/2014; 18:1:56-70.
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    ABSTRACT: Soil samples isolated from dye-contaminated sites were exploited for isolation of dye decolorizing microorganisms. A novel bacterial mixture, RkNb1, was selected based on its efficiency, showing maximum and faster decolorization of textile dyes. Seven bacterial strains were isolated and identified from the bacterial mixture as Ochrobactrum intermedium (HM480365), Ochrobactrum intermedium strain M16-10-4 (HM030758), Enterococcus faecalis (HM480367), Arthrobacter crystallopoietes (HM480368), Kocuria flavus (HM480369), Bacillus beijingensis (HM480370), and Citrobacter freundii (HM480371) by 16S rRNA gene sequence analysis. This bacterial mixture showed 98.17% decolorization of Reactive Violet 5 (400 mg L−1) within 8 h. The culture exhibited good decolorization ability at pH 8 and at a temperature of 37°C. Malt extract and peptone was found to enhance the decolorization rate of Reactive Violet 5. Plackett-Burman experimental design was used for elucidation of medium components affecting Reactive Violet 5 decolorization. Dye degradation products obtained during the course of decolorization were analyzed by high-performance thin-layer chromatography (HPTLC), Fourier transform infrared (FTIR), and nuclear magnetic resonance (NMR). The potential of this bacterial mixture to decolorize Reactive Violet 5 dye from manufacturing industry effluent is to be carried out using appropriate bioreactors.
    Bioremediation Journal 01/2014; 18(2).
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    ABSTRACT: Three 2,3,4,6-tetrachlorophenol (2,3,4,6-TeCP)-mineralizing bacteria were isolated from the secondary sludge of a pulp and paper industry. The isolates used 2,3,4,6-TeCP as a source of carbon and energy and were capable of degrading this compound, as indicated by stoichiometric release of chloride and biomass formation. Based on 16S rRNA gene sequence analysis, the bacteria were identified as Bacillus megaterium (CL3), Staphylococcus suciri (CL10), and Bacillus thuringensis (CL11). High-performance liquid chromatography (HPLC) analysis revealed that these isolates were able to degrade 2,3,4,6-TeCP at higher concentrations (600 mg/L or 2.5 mM). A consortia of the isolates completely removed 2,3,4,6-TeCP from the sludge obtained from a pulp and paper mill within 2 weeks when supplemented at a rate of 100 mg/L or 0.43 mM. A bacterial consortium also significantly reduced absorbable organic halogen (AOX) and extractable organic halogen (EOX) by 63% and 68%, respectively, from the sludge. These isolates have a high potential to remove 2,3,4,6-TeCP and may be used for remediation of pulp paper mill waste containing 2,3,4,6-TeCP.
    Bioremediation Journal 01/2014; 18(2).
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    ABSTRACT: The present study endeavors to isolate a nickel (Ni)-resistant bacterial strain from an industrial waste–contaminated soil sample and to characterize the strain with a view to identify it and to assess its ability to remove Ni from the medium or detoxify it. The final objective is to use the strain as an agent to bioremediate Ni contamination. As an outcome, a Ni-resistant bacterial strain (KUNi1) had been isolated from such a soil that could tolerate a maximum of 7.5 and 10 mM Ni concentrations, depending on the type of medium used. The strain also showed multimetal resistance. It was found to be resistant to zinc (Zn), copper (Cu), cobalt (Co), and cadmium (Cd). However, the degree of resistance to the individual metal was variable, as determined by assessing the minimum inhibitory concentration (MIC) of each metal against the strain. The order of resistance was Ni > Zn = Cu = Co > Cd. The strain removed a significant percentage (82%) of Ni from the medium during in vitro culture, whereas dead cell mass had an insignificant role in Ni removal. The quantum of Ni removal by the strain was interfered with when the other metals (Zn, Cu, Co, and Cd) were present either singly with Ni or in combination with other metals. However, the degree of interference varied with individual metal. The factors that influenced the quantum of Ni removal were ambient pH, initial cell density, and presence of other toxic metals. The strain was identified as Bacillus thuringiensis on the basis of its biochemical characteristics and 16s rDNA sequence analysis.
    Bioremediation Journal 01/2014; 18(2).
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    ABSTRACT: ABSTRACT Chemical reduction of Cr(VI) can be a strategy to detoxify toxic metals in oxidized states, whereas reduction of Fe(III) could enhance the availability of Fe in the form of Fe(II) to boost plant growth. However, it creates another problem of chemical sludge disposal. Hence, microbial conversion of Cr(VI) to Cr(III) and Fe(III) to Fe(II) is preferred over the chemical method. Out of 11 bacterial strains isolated from the rhizospheric zone of Typha latifolia growing on fly ash dump sites, four isolates were selected for the reduction of Cr(VI) and Fe(III) and were identified as Micrococcus roseus NBRFT2 (MTCC 9018), Bacillus endophyticus NBRFT4 (MTCC 9021), Paenibacillus macerans NBRFT5 (MTCC 8912), and Bacillus pumilus NBRFT9 (MTCC 8913). These strains were individually tested for survival at different concentrations of Cr(VI) and Fe(III), pH, and temperature, and then, their ability for reduction of both metals was evaluated at optimum pH 8.0 and temperature 35°C. The results indicated that NBRFT5 was able to reduce the maximum amount, 99% Cr(VI) and 98% Fe(III). Other strains also reduced these metals to different levels, but less than NBRFT5. Hence, these strains may be used for decontamination of metal-contaminated sites, particularly with Cr(VI) and Fe(III) through the reduction process.
    Bioremediation Journal 01/2014; 18(2).
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    ABSTRACT: The roles of gibberellic acid (GA3) and ethylenediaminetetraacetic acid (EDTA) in phytoremediation of cadmium (Cd)-contaminated soil by Parthenium hysterophorus plant was investigated. GA3 (10−9, 10−7, and 10−5M) was applied as a foliar spray. EDTA was added to soil in a single dose (160 mg/kg soil) and split doses (40 mg/kg soil, four split doses). GA3 and EDTA were used separately and in various combinations. P. hysterophorus was selected due to its fast growth and unpalatable nature to herbivores to reduce the entrance of metal into the food chain. The Cd phytoextraction potential of the P. hysterophorus plant was evaluated for the first time. Cd significantly reduced plant growth and dry biomass (DBM). GA3 alone increased the plant growth and biomass in Cd-contaminated soil, whereas EDTA reduced it. GA3 in combination with EDTA significantly increased the growth and biomass. The highest significant DBM was found in treatment T3 (10−5M GA3). All treatments of GA3 or EDTA significantly enhanced the plant Cd uptake and accumulation compared with control (C1). The highest significant root and stem Cd concentrations were found in the combination treatment T11 (GA3 10−5M + EDTA split doses), whereas in leaves it was found in the EDTA treatments. Cd concentration in plant parts increased in the order of stem 3 10−7M + EDTA split doses) showed the significantly highest total Cd accumulation (8 times greater than control C1, i.e., only Cd used). The GA3 treatments accumulated more than 50% of the total Cd in the roots, whereas the EDTA treatments showed more than 50% in the leaves. Root dry biomass showed a positive and significant correlation with Cd accumulation. GA3 is environment friendly as compared with EDTA. Therefore, further investigation of GA3 is recommended for phytoremediation research for the remediation of metal-contaminated soil.
    Bioremediation Journal 01/2014; 18(1).

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