Biodegradation of sulfametoxydiazine by Alcaligenes aquatillis FA: Performance, degradation pathways, and mechanisms

Du, Yuqian; Cheng, Qilu; Qian, Mingrong; Liu, Yangzhi; Wang, Feng; Ma, Junwei; Zhang, Xin; Lin, Hui

doi:10.1016/j.jhazmat.2023.131186

Cited by 50 publications

(3 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In previous research, the concentration of MC-LR in water during cyanobacterial blooms ranged from μg/L to mg/L [ 25 , 43 ]. To evaluate the effectiveness of PAN-CF@YF1 under different conditions, we selected three levels of MC-LR concentrations (high, medium, and low) to simulate the water environment during cyanobacterial blooms.…”

Section: Resultsmentioning

confidence: 99%

Reusable and Practical Biocomposite Based on Sphingopyxis sp. YF1 and Polyacrylonitrile-Based Carbon Fiber for the Efficient Bioremediation of Microcystin-LR-Contaminated Water

Ma,

Zhang,

Yang

et al. 2023

Toxins

View full text Add to dashboard Cite

Microbial degradation is a cost-effective and environmentally friendly method for removing microcystin-LR (MC-LR). However, the application of free bacteria has limitations due to low operational stability and difficulties in recovery. In a previous study, our group successfully isolated a highly efficient MC-LR-degrading bacterium, Sphingopyxis sp. YF1, from Taihu. To enhance its practical potential in addressing MC-LR-contaminated water pollution, a novel biological material named polyacrylonitrile-based carbon fiber @Sphingopyxis sp. YF1 (PAN-CF@YF1) was synthesized. The immobilization conditions of strain Sphingopyxis sp. YF1 on PAN-CF surfaces were optimized using Box–Behnken design and response surface methodology (RSM), which turned out to be an optimal pH of 7.6 for the culture medium, a ratio of 0.038 g of supporting materials per 100 mL of culture media, and an incubation time of 53.4 h. The resultant PAN-CF@YF1 showed a great degradation effect both for low and high concentrations of MC-LR and exhibited satisfactory cyclic stability (85.75% after six cycles). Moreover, the application of PAN-CF@YF1 in the bioreactors demonstrated effective and sustainable MC-LR removal, with a removal efficiency of 78.83% after three consecutive treatments. Therefore, PAN-CF@YF1 with high degradation activity, environmental compatibility, straightforward preparation, and recyclability shows significant application potential for the bioremediation of MC-LR-contaminated water bodies.

show abstract

Section: Resultsmentioning

confidence: 99%

Reusable and Practical Biocomposite Based on Sphingopyxis sp. YF1 and Polyacrylonitrile-Based Carbon Fiber for the Efficient Bioremediation of Microcystin-LR-Contaminated Water

Ma,

Zhang,

Yang

et al. 2023

Toxins

View full text Add to dashboard Cite

show abstract

“…Substrate utilization kinetics and growth yields are two critical parameters of the biodegradation process for predicting and optimizing bioaugmentation. However, kinetics of xenobiotic biodegradation are typically investigated at “high” concentrations (mg/L range). , Studies that directly measure substrate utilization kinetics and growth yields at environmentally realistic trace concentrations are scarce. Several studies reported that kinetics substantially changed at certain threshold concentrations (in the order of 100 μg/L and below) indicating that the extrapolation of kinetic data determined at higher concentrations may under- or overestimate the kinetics at low and environmentally relevant concentrations. , One major limitation for accurately determining substrate utilization and growth yields at low concentrations is the presence of background assimilable organic carbon (AOC) substrates (up to concentrations of 1 mg/L) in conventionally prepared minimal media. , That background AOC can act as a cosubstrate for bacterial growth and hence make a pollutant biodegradation experiment a mixed-substrate assay .…”

Section: Introductionmentioning

confidence: 99%

“…However, kinetics of xenobiotic biodegradation are typically investigated at "high" concentrations (mg/L range). 12,13 Studies that directly measure substrate utilization kinetics and growth yields at environmentally realistic trace concentrations are scarce. Several studies reported that kinetics substantially changed at certain threshold concentrations (in the order of 100 μg/L and below) indicating that the extrapolation of kinetic data determined at higher concentrations may under-or overestimate the kinetics at low and environmentally relevant concentrations.…”

Section: ■ Introductionmentioning

confidence: 99%

The Growth Yield of Aminobacter niigataensis MSH1 on the Micropollutant 2,6-Dichlorobenzamide Decreases Substantially at Trace Substrate Concentrations

Raes,

Wang,

Horemans

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

2,6-Dichlorobenzamide (BAM) is an omnipresent micropollutant in European groundwaters. Aminobacter niigataensis MSH1 is a prime candidate for biologically treating BAMcontaminated groundwater since this organism is capable of utilizing BAM as a carbon and energy source. However, detailed information on the BAM degradation kinetics by MSH1 at trace concentrations is lacking, while this knowledge is required for predicting and optimizing the degradation process. Contaminating assimilable organic carbon (AOC) in media makes the biodegradation experiment a mixed-substrate assay and hampers exploration of pollutant degradation at trace concentrations. In this study, we examined how the BAM concentration affects MSH1 growth and BAM substrate utilization kinetics in a AOC-restricted background to avoid mixed-substrate conditions. Conventional Monod kinetic models were unable to predict kinetic parameters at low concentrations from kinetics determined at high concentrations. Growth yields on BAM were concentration-dependent and decreased substantially at trace concentrations; i.e., growth of MSH1 diminished until undetectable levels at BAM concentrations below 217 μg-C/L. Nevertheless, BAM degradation continued. Decreasing growth yields at lower BAM concentrations might relate to physiological adaptations to low substrate availability or decreased expression of downstream steps of the BAM catabolic pathway beyond 2,6-dichlorobenzoic acid (2,6-DCBA) that ultimately leads to Krebs cycle intermediates for growth and energy conservation.

show abstract

Synthesis of PVA–MWCNTs–UMCNOs–starch crosslinked nanocomposite biodegradable films for the removal of methylene blue and Congo red dyes from wastewater

Dwivedi,

Rathore,

Srivastava

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Plastic waste and wastewater are indeed significant environmental issues that have wide‐ranging impacts on ecosystems, human health, and the economy. This study outlines the synthesis of biodegradable polyvinyl alcohol (PVA)–starch polymeric films incorporating multiwalled carbon nanotubes (MWCNTs) derived from plastic waste and unzipped carbon nanotubes oxides (UMCNOs) as co‐filled nanomaterials. These films were formulated based on data generated using a mixture design method in Design Expert 13 software, resulting in the synthesis of 19 films utilizing five types of PVA–starch polymer solutions (Types A–E). The synthesized films underwent characterization to study their surface morphology via scanning electron microscope and Fourier transform infrared spectroscopy analysis. Subsequently, the films were individually subjected to vacuum filtration, through which cationic dyes such as methylene blue (MB) and anionic dye Congo red (CR) were passed in batches. The highest removal efficiency of 96.43% for MB dye was achieved, accompanied by an exceptionally high flux of 3146.78 LMH. Similarly, the maximum removal of 88.08% for CR was observed with a flux of 1512.66 LMH. The renewable active sites mechanism resulted in increased dye removal with every cycle. Results indicated efficient reusability, particularly when washed with ethanol–water solution.

show abstract

Biodegradation of sulfametoxydiazine by Alcaligenes aquatillis FA: Performance, degradation pathways, and mechanisms

Cited by 50 publications

References 48 publications

Reusable and Practical Biocomposite Based on Sphingopyxis sp. YF1 and Polyacrylonitrile-Based Carbon Fiber for the Efficient Bioremediation of Microcystin-LR-Contaminated Water

Reusable and Practical Biocomposite Based on Sphingopyxis sp. YF1 and Polyacrylonitrile-Based Carbon Fiber for the Efficient Bioremediation of Microcystin-LR-Contaminated Water

The Growth Yield of Aminobacter niigataensis MSH1 on the Micropollutant 2,6-Dichlorobenzamide Decreases Substantially at Trace Substrate Concentrations

Synthesis of PVA–MWCNTs–UMCNOs–starch crosslinked nanocomposite biodegradable films for the removal of methylene blue and Congo red dyes from wastewater

Contact Info

Product

Resources

About