Transient response of microbial communities in a water well field to application of an impressed current

Medihala, Prabhakara; Lawrence, John R.; Swerhone, G. D. W.; Korber, Darren R.

doi:10.1016/j.watres.2012.10.049

Cited by 7 publications

(6 citation statements)

References 33 publications

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“…Therefore, previous studies of iron pipe corrosion have focused on pipe degradation, corrosion scale formation, and iron release. A large number of factors were examined for their influence on iron pipe corrosion parameters, including water quality and composition, flow conditions, biological activity, and corrosion inhibitors [9][10][11]. In particular, some contradictory results have appeared on the effects of chloride and sulfate on iron corrosion [1,12,13], so the LarsonSkold Index does not provide an effective means of controlling iron corrosion, and biofilms may be used as an alternative method to combat corrosion [14].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of biofilms and iron corrosion scales with ground and surface waters in drinking water distribution systems

Wang

et al. 2015

Corrosion Science

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a b s t r a c tThe composition of biofilm bacterial communities and iron corrosion scales were studied in two drinking water distribution systems transporting groundwater (DWDS-GW) and surface water (DWDS-SW). Loose corrosion products were formed containing a-FeOOH in DWDS-GW, while dense crystallized particles were formed in DWDS-SW, including a-FeOOH, Fe 3 O 4 and CaCO 3 . The biofilms in the two systems had the same bacterial diversity, denitrifying functional genes and 16S rRNA gene copies, but the bacterial communities were very different. It was found that nitrate-reducing bacteria in biofilms that are associated with iron cycling played a large role in the formation of Fe 3 O 4 and corrosion layers.

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Section: Introductionmentioning

confidence: 99%

Characteristics of biofilms and iron corrosion scales with ground and surface waters in drinking water distribution systems

Wang

et al. 2015

Corrosion Science

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“…Additionally, 16S rRNA gene sequences closely related to Sediminibacterium spp. were detected in contaminated soil and sediment environments [7][8][9][10][11][12][13][14][15][17][18][19][20][21][27][28][29][30]. In summary, most 16S rRNA sequences and closely related isolates to Asinibacterium spp.…”

Section: Resultsmentioning

confidence: 91%

“…Sequences closely related to Sediminibacterium spp. were detected in freshwater biofilms, eutrophic lakes, salt water, wastewater, and the gut of beetles and cows [7][8][9][10][11][12][13][14][15]. In addition, many sequences related to Sediminibacterium spp.…”

Section: Introductionmentioning

confidence: 99%

Physiological and Genomic Characterization of Two Novel Bacteroidota Strains Asinibacterium spp. OR43 and OR53

2022

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Asinibacterium spp. (Family Chitinophagaceae, Phylum Bacteroidota) are abundant in environments contaminated with heavy metals. We characterized the physiology and genome of two Asinibacterium species to elucidate their ability to survive and grow at ambient conditions in the uranium-contaminated environments. Both strains were able to grow at pH 4.5 or 50 mM nitrate under aerobic conditions and did not grow with alternative electron acceptors under anaerobic conditions. Asinibacterium sp. OR53 grew in medium with uranium concentrations up to 300 µM uranium while Asinibacterium sp. OR43 could not grow at uranium concentrations > 200 µM. Elemental mapping using energy dispersive X-ray spectroscopy indicate that uranium co-localized with phosphorus-containing compounds on the cell surface. Genes potentially encoding resistance mechanisms to a variety of heavy metals were detected in the genomes of both strains. The localization of uranium and missing acidic and alkaline phosphatase genes in the genome suggest that biosorption of uranium to the lipopolysaccharide layer might be the mechanism of uranium resistance. In summary, Asinibacterium spp. OR43 and OR53 are physiologically similar to closely related strains within the Chitinophagaceae family but are uniquely acclimated to the presence of uranium and other heavy metals prevalent in the subsurface at Oak Ridge, Tennessee.

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“…According to the literature review, 12 out of 26 genera were potential functional species playing roles in the cast iron corrosion process in RWDS. These 12 genera mainly included four nitrate-dependent IOBs: Aquabacterium [46, 47], Sediminibacterium [48], Azospira [49], and Geobacter [50]; one IRB: Geothrix [51, 52]; five nitrate-reducing bacteria (NRBs): Thermomonas [53], Rhodoferax [53], Sulfuritalea [53], Dechloromonas [53], and Hyphomicrobium [54]; one nitrite-oxidizing bacteria (NOB): Nitrospira [55]; and one SRB: Desulfovibrio [56] . To obtain a clearer picture of the variability in the functional genera in different layers and reactor systems, relative abundance variation with time was portrayed for IOBs, IRBs, NOBs, NRBs (Additional file 1: Figure S15), and SRBs (Fig.…”

Section: Resultsmentioning

confidence: 99%

The bacterial community significantly promotes cast iron corrosion in reclaimed wastewater distribution systems

Zhang

Liu

et al. 2018

Microbiome

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BackgroundCurrently, the effect of the bacterial community on cast iron corrosion process does not reach consensus. Moreover, some studies have produced contrasting results, suggesting that bacteria can either accelerate or inhibit corrosion.ResultsThe long-term effects of the bacterial community on cast iron corrosion in reclaimed wastewater distribution systems were investigated from both spatial (yellow layer vs. black layer) and temporal (1-year dynamic process) dimensions of the iron coupon-reclaimed wastewater microcosm using high-throughput sequencing and flow cytometry approaches. Cast iron coupons in the NONdisinfection and UVdisinfection reactors suffered more severe corrosion than did those in the NaClOdisinfection reactor. The bacterial community significantly promoted cast iron corrosion, which was quantified for the first time in the practical reclaimed wastewater and found to account for at least 30.5% ± 9.7% of the total weight loss. The partition of yellow and black layers of cast iron corrosion provided more accurate information on morphology and crystal structures for corrosion scales. The black layer was dense, and the particles looked fusiform, while the yellow layer was loose, and the particles were ellipse or spherical. Goethite was the predominant crystalline phase in black layers, while corrosion products mainly existed as an amorphous phase in yellow layers. The bacterial community compositions of black layers were distinctly separated from yellow layers regardless of disinfection methods. The NONdisinfection and UVdisinfection reactors had a more similar microbial composition and variation tendency for the same layer type than did the NaClOdisinfection reactor. Biofilm development can be divided into the initial start-up stage, mid-term development stage, and terminal stable stage. In total, 12 potential functional genera were selected to establish a cycle model for Fe, N, and S metabolism. Desulfovibrio was considered to accelerate the transfer of Fe0 to Fe2+ and speed up weight loss.ConclusionThe long-term effect of disinfection processes on corrosion behaviors of cast iron in reclaimed wastewater distribution systems and the hidden mechanisms were deciphered for the first time. This study established a cycle model for Fe, N, and S metabolism that involved 12 functional genera and discovered the significant contribution of Desulfovibrio in promoting corrosion.Electronic supplementary materialThe online version of this article (10.1186/s40168-018-0610-5) contains supplementary material, which is available to authorized users.

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Transient response of microbial communities in a water well field to application of an impressed current

Cited by 7 publications

References 33 publications

Characteristics of biofilms and iron corrosion scales with ground and surface waters in drinking water distribution systems

Characteristics of biofilms and iron corrosion scales with ground and surface waters in drinking water distribution systems

Physiological and Genomic Characterization of Two Novel Bacteroidota Strains Asinibacterium spp. OR43 and OR53

The bacterial community significantly promotes cast iron corrosion in reclaimed wastewater distribution systems

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