Carbon and nutrient-limiting conditions stimulate biodegradation of low concentration of phenol

Saha, Shaswati; Badhe, Neha; Pal, Sukdeb; Biswas, Rima; Nandy, Tapas

doi:10.1016/j.bej.2017.06.017

Cited by 10 publications

(3 citation statements)

References 35 publications

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“…This was probably caused by a starvation of the microbes. Carbon-limiting conditions have been seen to stimulate the biodegradation of phenol . It may therefore influence the degradation of chemicals.…”

Section: Resultsmentioning

confidence: 99%

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Biodegradation Kinetics of Fragrances, Plasticizers, UV Filters, and PAHs in a Mixture─Changing Test Concentrations over 5 Orders of Magnitude

Birch

Sjøholm

Dechesne

et al. 2021

Environ. Sci. Technol.

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Biodegradation of organic chemicals emitted to the environment is carried out by mixed microbial communities growing on multiple natural and xenobiotic substrates at low concentrations. This study aims to (1) perform simulation type biodegradation tests at a wide range of mixture concentrations, (2) determine the concentration effect on the biodegradation kinetics of individual chemicals, and (3) link the mixture concentration and degradation to microbial community dynamics. Two hundred ninety-four parallel test systems were prepared using wastewater treatment plant effluent as inoculum and passive dosing to add a mixture of 19 chemicals at 6 initial concentration levels (ng/L to mg/L). After 1−30 days of incubation at 12 °C, abiotic and biotic test systems were analyzed using arrow solid phase microextraction and GC−MS/MS. Biodegradation kinetics at the highest test concentrations were delayed for several test substances but enhanced for the reference chemical naphthalene. Test concentration thus shifted the order in which chemicals were degraded. 16S rRNA gene amplicon sequencing indicated that the highest test concentration (17 mg C/L added) supported the growth of the genera Acidovorax, Novosphingobium, and Hydrogenophaga, whereas no such effect was observed at lower concentrations. The chemical and microbial results confirm that too high mixture concentrations should be avoided when aiming at determining environmentally relevant biodegradation data.

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Section: Resultsmentioning

confidence: 99%

“…Carbon-limiting conditions have been seen to stimulate the biodegradation of phenol. 57 It may therefore influence the degradation of chemicals. Although the present study cannot conclude whether this was the case, the method presented here could be used to investigate such matters in further studies.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Biodegradation Kinetics of Fragrances, Plasticizers, UV Filters, and PAHs in a Mixture─Changing Test Concentrations over 5 Orders of Magnitude

Birch

Sjøholm

Dechesne

et al. 2021

Environ. Sci. Technol.

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“…If the saline wastewater is discharged directly into the environment without proper treatment, it will detrimentally affect the soil, surface water, and groundwater [3]. Wastewater treatment plants [4] are important systems to prevent the spread of harmful materials to the environment [5,6]. There are many ways to remove pollutants from wastewater [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Performance and Biomass Characteristics of SBRs Treating High-Salinity Wastewater at Presence of Anionic Surfactants

Huiru

Yang

2020

IJERPH

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Sodium dodecylbenzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS), as two anionic surfactants, have diffused into environments such as surface water and ground water due to extensive and improper use. The effects on the removal performance and microbial community of sequencing batch reactors (SBRs) need to be investigated in the treatment of saline wastewater containing 20 g/L NaCl. The presence of SDS and SDBS could decrease the removal efficiencies of ammonia nitrogen and total phosphorus, and the effect of SDS was more significant. The effect of surfactants on the removal mainly occurred during the aeration phase. Adding SDS and SDBS can reduce the content of extracellular polymeric substances (EPS). In addition, SDS and SDBS also can reduce the inhibition of high salinity on sludge activity. A total of 16 s of rRNA sequencing analysis showed that the addition of surfactants reduced the diversity of microbial communities; besides, the relative abundance value of the dominant population Proteobacteria increased from 91.66% to 97.12% and 93.48% when SDS and SDBS were added into the system, respectively.

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Biotransformation of phenolic compounds by Bacillus aryabhattai

Paz

Costa-Trigo

Tugores

et al. 2019

Bioprocess Biosyst Eng

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Carbon and nutrient-limiting conditions stimulate biodegradation of low concentration of phenol

Cited by 10 publications

References 35 publications

Biodegradation Kinetics of Fragrances, Plasticizers, UV Filters, and PAHs in a Mixture─Changing Test Concentrations over 5 Orders of Magnitude

Biodegradation Kinetics of Fragrances, Plasticizers, UV Filters, and PAHs in a Mixture─Changing Test Concentrations over 5 Orders of Magnitude

Performance and Biomass Characteristics of SBRs Treating High-Salinity Wastewater at Presence of Anionic Surfactants

Biotransformation of phenolic compounds by Bacillus aryabhattai

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