Batch-mode stimulation of hydrocarbons biodegradation in freshwater sediments from historically contaminated Alūksne lake

Kalneniece, Kristīne; Gudrā, Dita; Lielauss, Ludvigs; Selga, Tūrs; Fridmanis, Dāvids; Terauds, Janis; Muter, Olga

doi:10.1016/j.jconhyd.2022.104103

Cited by 2 publications

(2 citation statements)

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“…The genera that dominated in the inoculum (allochthonous) were identified as Citrobacter (29.5%), Klebsiella (24.5%), Pseudomonas (15.5%), and Aeromonas (11.3%). The concentration of hydrocarbons in the lake sediments during the 32-day incubation decreased on average from 465 mg/kg to 165 mg/kg and 117.5 mg/kg in the (N) and (NB) sets, respectively [ 8 ].…”

Section: Sources Of Microorganisms For Bioaugmentationmentioning

confidence: 99%

“…Bioaugmentation is a site-specific approach. Thus, recent research publications and reviews on bioaugmentation have focused on the following aspects: thermophilic reductive dechlorination [ 4 , 5 ]; the psychrophilic treatment of groundwaters [ 6 ]; microbially induced calcium carbonate precipitation techniques to mitigate the wind-induced erosion of calcareous desert sand [ 7 ]; hydrocarbon biodegradation in freshwater sediments from historically contaminated lakes [ 8 ]; the bacterial remediation of pesticide-polluted soils [ 3 ], emerging trends in the remediation of organic contaminated soils as a whole [ 9 ]; mechanisms of microbial activity in heavy metal removal [ 10 ]; comparisons of autochthonous and allochthonous bioaugmentation [ 11 ]; the stimulation of plant growth in bioaugmented hydroponic systems [ 12 ]; and the bioaugmentation of wastewaters (WWs) with yeast in the presence of antimicrobials [ 13 ], among others.…”

Section: Introductionmentioning

confidence: 99%

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Current Trends in Bioaugmentation Tools for Bioremediation: A Critical Review of Advances and Knowledge Gaps

Muter

2023

Microorganisms

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Bioaugmentation is widely used in soil bioremediation, wastewater treatment, and air biofiltration. The addition of microbial biomass to contaminated areas can considerably improve their biodegradation performance. Nevertheless, analyses of large data sets on the topic available in literature do not provide a comprehensive view of the mechanisms responsible for inoculum-assisted stimulation. On the one hand, there is no universal mechanism of bioaugmentation for a broad spectrum of environmental conditions, contaminants, and technology operation concepts. On the other hand, further analyses of bioaugmentation outcomes under laboratory conditions and in the field will strengthen the theoretical basis for a better prediction of bioremediation processes under certain conditions. This review focuses on the following aspects: (i) choosing the source of microorganisms and the isolation procedure; (ii) preparation of the inoculum, e.g., cultivation of single strains or consortia, adaptation; (iii) application of immobilised cells; (iv) application schemes for soil, water bodies, bioreactors, and hydroponics; and (v) microbial succession and biodiversity. Reviews of recent scientific papers dating mostly from 2022–2023, as well as our own long-term studies, are provided here.

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Section: Sources Of Microorganisms For Bioaugmentationmentioning

confidence: 99%