Physicochemical soil parameters affecting sequestration and mycobacterial biodegradation of polycyclic aromatic hydrocarbons in soil

Bogan, Bill W.; Sullivan, Wendy R.

doi:10.1016/s0045-6535(03)00455-7

Cited by 129 publications

(59 citation statements)

References 47 publications

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“…One year field monitoring at the SD site further demonstrated that the four chemicals (TCC, TCS, AHTN and HHCB) in the biosolidamended agricultural soils dissipated slowly with half-lives ranging between 51 days and 900 days (Table 4). The half-lives of the four chemicals in the soils under one biosolid application (T1) were found much higher than under repeated applications (T2), most likely due to aging effects of chemicals (Bogan and Sullivan, 2003). The increase of contact time could lead to increase the sequestration and reduce the availability of compound for the biodegradation.…”

Section: Discussionmentioning

confidence: 98%

Field dissipation and risk assessment of typical personal care products TCC, TCS, AHTN and HHCB in biosolid-amended soils

Chen

Ying

et al. 2014

Science of The Total Environment

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Section: Discussionmentioning

confidence: 98%

Field dissipation and risk assessment of typical personal care products TCC, TCS, AHTN and HHCB in biosolid-amended soils

Chen

Ying

et al. 2014

Science of The Total Environment

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“…It is well documented that increased contact time led to increased sequestration and reduced biodegradation of HOCs (Bogan and Sullivan, 2003;Macleod and Semple, 2003). HOCs associated with humin fraction exhibited more resistance to desorption and have less bioavailability (Pignatello and Xing, 1996;Nam and Kim, 2002).…”

Section: Effect Of Biological Activity On the Distribution Of Hcb Andmentioning

confidence: 99%

Effect of microbial activity, soil water content and added copper on the temporal distribution patterns of HCB and DDT among different soil organic matter fractions

Zhang¹,

Wen²,

Shan³

2008

Environmental Pollution

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Biological activity, soil moisture and Cu have different effects on HCB and DDT transfer from FA, HA and BHA to lipid and IR fractions. AbstractTemporal changes in the distribution of exogenous HCB and DDT among different soil organic matter fractions were studied under sterile and non-sterile conditions, different soil water contents, and different concentrations of added Cu 2þ . The residence time was 311 days. Soil organic matter was fractionated into fulvic acid (FA), humic acid (HA), bound-humic acid (BHA), lipid, and insoluble residue (IR) fractions by a methyl isobutyl ketone (MIBK) method. Results revealed that there is a mass transfer tendency of DDT and HCB from FA, HA and BHA to IR and lipid fractions with increasing residence time. Microbial activity accelerated the mass transfer, while the addition of Cu 2þ slowed it down. The HCB and DDT transfer rate decreased as the soil moisture increased from 1.9% to 60%, but increased when soil moisture increased further to 90%. A two-compartment first order kinetic model was used to describe the mass transfer from FA, HA and BHA.

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“…With regard to bacteria obtained through MS media, the enrichment and isolation process were conducted in optimized nutrient conditions without the competition with indigenous microorganism, made the isolates sensitive in natural water. The reason for poor successful biodegradation in field test was also attributed to the fact that the laboratory test did not reveal the real environmental condition including the availability of substrates, nutrients, and electron acceptors (Bogan and Sullivan, 2003;Greenwood et al, 2009), and did not enable a continuous substrate flux since the experiment was carried out when target substrates were added initially only once. In our study, simulated biodegradation was performed with continuous supply of MCs in Lake Taihu water and the number of bacteria in flasks where strains WC-1 to WC-5 were incubated showed substantial increase with a lag phase of less than 3 days.…”

Section: The Effect Of Isolation Strategy On Bacteria Adaptability Inmentioning

confidence: 99%

Enhanced and continued degradation of microcystins using microorganisms obtained through natural media

Hong

Pan

2014

Journal of Microbiological Methods

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Microorganisms isolated through artificial media are often unsustainable in biodegrading microcystins (MCs) in natural water. Here we studied alternative approaches to isolate MCs-degrading bacteria using natural media. In comparison to two species (MS-1 and MS-2) isolated from artificial media and the failure of bacterial colonies formation using water extracts of sediment (10%, w/v), five colony species (WC-1 to WC-5) appeared using concentrated water extracts of sediment that is 10-fold enhancement of nutrient level. In the simulated biodegradation test in Lake Taihu water with continuous supply of MCs, a lag phase of 6 days was required for MS-1 and M-2 to degrade 13% and 15% of the added MC-RR and MC-LR, respectively, whereas the lag phase was only 3 days with approximately 44% and 31% removal of the added MC-RR and MC-LR by WC-1 to WC-5. During the continuous supply experiment, degradation of MCs by MS-1 and MS-2 stopped after 3 days, while degradation of MCs by WC-1 to WC-5 lasted continuously throughout the 18 day test period with 2 to 6-fold enhancement of removal rate. 16S rRNA gene sequences and phylogenetic analysis indicated the potential to amplify species of MCsdegrading bacteria when natural media were used. The results suggested that the increased adaptability of bacteria obtained through concentrated natural media was responsible for the enhanced and continued biodegradation under simulated natural water conditions.

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Physicochemical soil parameters affecting sequestration and mycobacterial biodegradation of polycyclic aromatic hydrocarbons in soil

Cited by 129 publications

References 47 publications

Field dissipation and risk assessment of typical personal care products TCC, TCS, AHTN and HHCB in biosolid-amended soils

Field dissipation and risk assessment of typical personal care products TCC, TCS, AHTN and HHCB in biosolid-amended soils

Effect of microbial activity, soil water content and added copper on the temporal distribution patterns of HCB and DDT among different soil organic matter fractions

Enhanced and continued degradation of microcystins using microorganisms obtained through natural media

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