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Chen J, Yang L, Chen X, Ripp S, Zhuang J. Coupled Effects of Pore Water Velocity and Soil Heterogeneity on Bacterial Transport: Intact vs. Repacked Soils. Front Microbiol 2022; 13:730075. [PMID: 35265053 PMCID: PMC8899592 DOI: 10.3389/fmicb.2022.730075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 01/13/2022] [Indexed: 11/16/2022] Open
Abstract
Transport of pathogenic bacteria from land surface to groundwater is largely influenced by rainfall intensity and geochemical and structural heterogeneities of subsurface sediments at different depths. It has been assumed that the change in rainfall intensity has different effects on bacterial transport as a function of soil depth. In this study, repacked and intact column systems were used to investigate the influences of pore water velocity on the transport of Escherichia coli 652T7 through a loamy soil collected from varying soil depths. The soils differed in geochemical properties and soil structures. The concentrations of bacteria in soil and liquid samples were measured using plate counting method. The breakthrough percentages of E. coli 652T7 increased with pore water velocity at each depth in both intact and disturbed soils. Among the different soil depths, the largest velocity effect was observed for the transport through the top soil (0-5 cm) of both disturbed and intact soil profiles. This depth-dependent effect of pore water velocity was attributed to down gradients of soil organic matter (SOM) and iron oxide contents with depth because SOM and iron oxides were favorable for bacterial attachment on soil surfaces. In addition, less bacteria broke through the disturbed soil than through the intact soil at the same depth, and the pore water velocity effect was stronger with the disturbed than intact soils. Specifically, the maximum C/C0 (i.e., ratio of effluent to influent concentration) doubled (i.e., from 0.36 to 0.76) in the 0-5 cm intact soil columns and tripled (i.e., from 0.16 to 0.43) in the 0-5 cm repacked soil columns. This structure-dependent effect of pore water velocity was attributed to larger pore tortuosity and a narrower range of pore sizes in the disturbed soil than in the intact soil. These findings suggest that change in pore water velocity could trigger bacterial remobilization especially in surface soils, where more bacteria are retained relative to deep soils.
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Affiliation(s)
- Jing Chen
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Liqiong Yang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Xijuan Chen
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Steven Ripp
- Center for Environmental Biotechnology, The University of Tennessee, Knoxville, TN, United States
| | - Jie Zhuang
- Center for Environmental Biotechnology, The University of Tennessee, Knoxville, TN, United States
- Department of Biosystems Engineering and Soil Science, The University of Tennessee, Knoxville, TN, United States
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Laxman K, Sathe P, Al Abri M, Dobretsov S, Dutta J. Disinfection of Bacteria in Water by Capacitive Deionization. Front Chem 2020; 8:774. [PMID: 33110910 PMCID: PMC7489198 DOI: 10.3389/fchem.2020.00774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/24/2020] [Indexed: 11/27/2022] Open
Abstract
Clean water is one of the primary UN sustainable development goals for 2,030 and sustainable water deionization and disinfection is the backbone of that goal. Capacitive deionization (CDI) is an upcoming technique for water deionization and has shown substantial promise for large scale commercialization. In this study, activated carbon cloth (ACC) electrode based CDI devices are used to study the removal of ionic contaminants in water and the effect of ion concentrations on the electrosorption and disinfection functions of the CDI device for mixed microbial communities in groundwater and a model bacterial strain Escherichia coli. Up to 75 % of microbial cells could be removed in a single pass through the CDI unit for both synthetic and groundwater, while maintaining the salt removal activity. Mortality of the microbial cells were also observed during the CDI cell regeneration and correlated with the chloride ion concentrations. The power consumption and salt removal capacity in the presence and absence of salt were mapped and shown to be as low as 0.1 kWh m−3 and 9.5 mg g−1, respectively. The results indicate that CDI could be a viable option for single step deionization and microbial disinfection of brackish water.
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Affiliation(s)
- Karthik Laxman
- Functional Materials Group, Department of Applied Physics, School of Engineering Sciences (SCI), KTH Royal Institute of Technology, Stockholm, Sweden
| | - Priyanka Sathe
- Nanotechnology Research Centre, Sultan Qaboos University, Muscat, Oman.,Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Mohammed Al Abri
- Nanotechnology Research Centre, Sultan Qaboos University, Muscat, Oman.,Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
| | - Sergey Dobretsov
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman.,Center of Excellence in Marine Biotechnology, Sultan Qaboos University, Muscat, Oman
| | - Joydeep Dutta
- Functional Materials Group, Department of Applied Physics, School of Engineering Sciences (SCI), KTH Royal Institute of Technology, Stockholm, Sweden
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3
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Archundia D, Duwig C, Spadini L, Morel MC, Prado B, Perez MP, Orsag V, Martins JMF. Assessment of the Sulfamethoxazole mobility in natural soils and of the risk of contamination of water resources at the catchment scale. ENVIRONMENT INTERNATIONAL 2019; 130:104905. [PMID: 31234002 DOI: 10.1016/j.envint.2019.104905] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/30/2019] [Accepted: 06/06/2019] [Indexed: 06/09/2023]
Abstract
Sulfamethoxazole (SMX) is one of the antibiotics most commonly detected in aquatic and terrestrial environments and is still widely used, especially in low income countries. SMX is assumed to be highly mobile in soils due to its intrinsic molecular properties. Ten soils with contrasting properties and representative of the catchment soil types and land uses were collected throughout the watershed, which undergoes very rapid urban development. SMX displacement experiments were carried out in repacked columns of the 10 soils to explore SMX reactive transfer (mobility and reactivity) in order to assess the contamination risk of water resources in the context of the Bolivian Altiplano. Relevant sorption processes were identified by modelling (HYDRUS-1D) considering different sorption concepts. SMX mobility was best simulated when considering irreversible sorption as well as instantaneous and rate-limited reversible sorption, depending on the soil type. SMX mobility appeared lower in soils located upstream of the watershed (organic and acidic soils - Regosol) in relation with a higher adsorption capacity compared to the soils located downstream (lower organic carbon content - Cambisol). By combining soil column experiments and soil profiles description, this study suggests that SMX can be classified as a moderately to highly mobile compound in the studied watershed, depending principally on soil properties such as pH and OC. Potential risks of surface and groundwater pollution by SMX were thus identified in the lower part of the studied catchment, threatening Lake Titicaca water quality.
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Affiliation(s)
- D Archundia
- Univ. Grenoble Alpes, IRD, CNRS, IGE, Grenoble, France; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico, D.F, Mexico.; Universidad Nacional Autónoma de México-Estación Regional del Noroeste, Mexico
| | - C Duwig
- Univ. Grenoble Alpes, IRD, CNRS, IGE, Grenoble, France.
| | - L Spadini
- Univ. Grenoble Alpes, IRD, CNRS, IGE, Grenoble, France
| | - M C Morel
- Univ. Grenoble Alpes, IRD, CNRS, IGE, Grenoble, France; CNAM, Laboratoire d'analyses chimiques et bioanalyses, Paris Cedex 3, France
| | - B Prado
- Instituto de Geología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - M P Perez
- Universidad Mayor de San Andrés, Instituto de Hidrología e Hidráulica, La Paz, Bolivia
| | - V Orsag
- Universidad Mayor de San Andrés, Facultad de Agronomía, La Paz, Bolivia
| | - J M F Martins
- Univ. Grenoble Alpes, IRD, CNRS, IGE, Grenoble, France
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Xiao S, Ju LK. Energy-efficient ultrasonic release of bacteria and particulates to facilitate ingestion by phagotrophic algae for waste sludge treatment and algal biomass and lipid production. CHEMOSPHERE 2018; 209:588-598. [PMID: 29957519 DOI: 10.1016/j.chemosphere.2018.06.120] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 06/13/2018] [Accepted: 06/17/2018] [Indexed: 06/08/2023]
Abstract
Wastewater treatment generates large amounts of waste activated sludge (WAS) that contains concentrated bacteria and particulate organics and requires costly treatment prior to disposal. This study develops an approach to harness the unique capability of oleaginous phagotrophic microalgae for treating WAS and producing algal biomass and lipids. WAS ultrasonication is studied for releasing particulates and bacteria suitable for direct ingestion by phagotrophic microalgae, without bacterial destruction/lysis, and thus minimizing energy requirement. Particle release into supernatant was followed by optical density at 610 nm (OD610) and volatile solid concentration (VS); OD610 correlated well with micron-size particle count rates measured by dynamic light scattering. Microalgae (Ochromonas danica) grew with a 7.6-h doubling time in sonication-generated WAS supernatant alone, giving approximately 66% (w/w) cell yield from consumed VS and ∼30% intracellular lipids. Effects of sonication power (P in W), WAS volume (V in mL) and sonication duration (t in s) were studied with a 3 × 3 × 6 factorial design. Supernatant OD610 increased with increasing P and t and decreasing V. Multiple linear regression gave the following equation with only significant terms: OD610TS=-0.0536+0.000592P-0.000213t+0.000003P×t+0.000274P×tV (R2 = 0.94). Sonicating 500-mL WAS at 180 W for 240 s was selected for giving high particulate release (∼29% VS) with maximal energy efficiency, corresponding to a specific energy input of 4320 kJ (kg TS)-1, which was much lower than the range (15,000-250,000 kJ (kg TS)-1) reported previously for WAS ultrasonication. The results supported development of new ultrasonication-phagotrophic algae processes for WAS treatment and algae production.
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Affiliation(s)
- Suo Xiao
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Lu-Kwang Ju
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA.
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Suliman W, Harsh JB, Fortuna AM, Garcia-Pérez M, Abu-Lail NI. Quantitative Effects of Biochar Oxidation and Pyrolysis Temperature on the Transport of Pathogenic and Nonpathogenic Escherichia coli in Biochar-Amended Sand Columns. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:5071-5081. [PMID: 28358986 DOI: 10.1021/acs.est.6b04535] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The present study quantifies the transport of Escherichia coli pathogenic O157:H7 and nonpathogenic K12 strains in water-saturated Quincy sand (QS) columns amended with oxidized (OX) or unoxidized (UO) pine wood (PW) or pine bark (PB) biochar produced at either 350 or 600 °C. Our results showed that (1) the addition of oxidized biochar into QS columns enhanced the transport of E. coli O157:H7 by 3.1 fold compared to the unoxidized counterparts, likely because of an increase in the repulsive forces due to their higher negative charge densities. (2) The retention of E. coli O157:H7 was 3.3 fold higher than that of E. coli K12 in all biochar-amended sand columns. (3) Increased application rates of unoxidized PW600 biochar from 0 to 20 wt % led to a reduction in the transport of E. coli O157:H7 and K12 from 98 to 10% and from 95 to 70%, respectively. Our data showed that mixing sand with PW350-UO at a 20 wt % application rate almost completely retained the pathogenic E. coli in the subsurface, suggesting that utilizing sand mixed with biochar can act as a promising biofilter capable of protecting natural aquafers from pathogens.
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Affiliation(s)
- Waled Suliman
- Department of Microbiology, Benghazi University , Benghazi LYB2186, Libya
- Department of Crop and Soil Sciences, Washington State University , Pullman, Washington 99164, United States
| | - James B Harsh
- Department of Crop and Soil Sciences, Washington State University , Pullman, Washington 99164, United States
| | - Ann-Marie Fortuna
- Soil Science Department, North Dakota State University , Fargo, North Dakota 58108, United States
| | - Manuel Garcia-Pérez
- Biological Systems Engineering Department, Washington State University , Pullman, Washington 99164, United States
| | - Nehal I Abu-Lail
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University , Pullman, Washington 99164, United States
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Simonin M, Martins JMF, Uzu G, Vince E, Richaume A. Combined Study of Titanium Dioxide Nanoparticle Transport and Toxicity on Microbial Nitrifying Communities under Single and Repeated Exposures in Soil Columns. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:10693-10699. [PMID: 27589234 DOI: 10.1021/acs.est.6b02415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Soils are exposed to nanoparticles (NPs) as a result of their increasing use in many commercial products. Adverse effects of NPs on soil microorganisms have been reported in several ecotoxicological studies using microcosms. Although repeated exposures are more likely to occur in soils, most of these previous studies were performed as a single exposure to NPs. Contrary to single contamination, the study of multiple NP contaminations in soils requires the use of specialized setups. Using a soil column experiment, we compared the influence of single and repeated exposures (one, two, or three exposures that resulted in the same final concentration applied) on the transport of titanium dioxide (TiO2) NPs through soil and the effect of these different exposure scenarios on the abundance and activity of soil nitrifying microbial communities after a 2 month incubation. The transport of TiO2 NPs was very limited under both single and repeated exposures and was highest for the lowest concentration injected during the first application. Significant decreases in nitrification activity and ammonia-oxidizing archaea and bacteria populations were observed only for the repeated exposure scenario (three TiO2 NP contaminations). These results suggest that, under repeated exposures, the transport of TiO2 NPs to deep soil layers and groundwater is limited and that a chronic contamination is more harmful for the soil microbiological functioning than a single exposure.
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Affiliation(s)
- Marie Simonin
- Université de Lyon , F-69002 Lyon, France
- Université Claude Bernard Lyon 1 , F-69100 Villeurbanne, France
- Microbial Ecology Lab, UMR 5557, Centre National de la Recherche Scientifique (CNRS), Université Lyon 1 , F-69622 Villeurbanne, France
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), UMR 5564, Université Grenoble Alpes , F-38000 Grenoble, France
| | - Jean M F Martins
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), UMR 5564, Université Grenoble Alpes , F-38000 Grenoble, France
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), Centre National de la Recherche Scientifique (CNRS) , F-38000 Grenoble, France
| | - Gaëlle Uzu
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), UMR 5564, Université Grenoble Alpes , F-38000 Grenoble, France
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), Institut de Recherche pour le Développement (IRD) , F-38000 Grenoble, France
| | - Erwann Vince
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), UMR 5564, Université Grenoble Alpes , F-38000 Grenoble, France
- Laboratoire d'étude des Transferts en Hydrologie et Environnement (LTHE), Centre National de la Recherche Scientifique (CNRS) , F-38000 Grenoble, France
| | - Agnès Richaume
- Université de Lyon , F-69002 Lyon, France
- Université Claude Bernard Lyon 1 , F-69100 Villeurbanne, France
- Microbial Ecology Lab, UMR 5557, Centre National de la Recherche Scientifique (CNRS), Université Lyon 1 , F-69622 Villeurbanne, France
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Soto-Gómez D, Pérez-Rodríguez P, López-Periago JE, Paradelo M. Sepia ink as a surrogate for colloid transport tests in porous media. JOURNAL OF CONTAMINANT HYDROLOGY 2016; 191:88-98. [PMID: 27294674 DOI: 10.1016/j.jconhyd.2016.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 05/16/2016] [Accepted: 05/30/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Diego Soto-Gómez
- Soil Science and Agricultural Chemistry Group, Department of Plant Biology and Soil Science, Faculty of Sciences, University of Vigo, E-32004 Ourense, Spain.
| | - Paula Pérez-Rodríguez
- Soil Science and Agricultural Chemistry Group, Department of Plant Biology and Soil Science, Faculty of Sciences, University of Vigo, E-32004 Ourense, Spain
| | - J Eugenio López-Periago
- Soil Science and Agricultural Chemistry Group, Department of Plant Biology and Soil Science, Faculty of Sciences, University of Vigo, E-32004 Ourense, Spain
| | - Marcos Paradelo
- Soil Science and Agricultural Chemistry Group, Department of Plant Biology and Soil Science, Faculty of Sciences, University of Vigo, E-32004 Ourense, Spain; Department of Agroecology, Faculty of Sciences and Technology, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
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8
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Desaunay A, Martins JMF. Comparison of chemical washing and physical cell-disruption approaches to assess the surface adsorption and internalization of cadmium by Cupriavidus metallidurans CH34. JOURNAL OF HAZARDOUS MATERIALS 2014; 273:231-238. [PMID: 24747375 DOI: 10.1016/j.jhazmat.2014.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 02/19/2014] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
Bacterial biosorption of heavy metals is often considered as a surface complexation process, without considering other retention compartments than cell walls. Although this approach gives a good description of the global biosorption process, it hardly permits the prediction of the fate of biosorbed metals in the environment. This study examines the subcellular distribution of cadmium (Cd) in the metal-tolerant bacterium Cupriavidus metallidurans CH34 through the comparison of an indirect chemical method (washing cells with EDTA) and a direct physical method (physical disruption of cells). The chemical washing approach presented strong experimental biases leading to the overestimation of washed amount of Cd, supposedly bound to cell membranes. On the contrary, the physical disruption approach gave reproducible and robust results of Cd subcellular distribution. Unexpectedly, these results showed that over 80% of passively biosorbed Cd is internalized in the cytoplasm. In disagreement with the common concept of surface complexation of metals onto bacteria the cell wall was poorly reactive to Cd. Our results indicate that metal sorption onto bacterial surfaces is only a first step in metal management by bacteria and open new perspectives on metal biosorption by bacteria in the environment, with implications for soil bioremediation or facilitated transport of metals by bacteria.
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Affiliation(s)
- Aurélien Desaunay
- LTHE-CNRS-Univ. Grenoble I (UMR 5564), Domaine Universitaire BP 53, 38041 Grenoble Cedex 9, France
| | - Jean M F Martins
- LTHE-CNRS-Univ. Grenoble I (UMR 5564), Domaine Universitaire BP 53, 38041 Grenoble Cedex 9, France.
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Rolland du Roscoat S, Martins J, Séchet P, Vince E, Latil P, Geindreau C. Application of synchrotron X-ray microtomography for visualizing bacterial biofilms 3D microstructure in porous media. Biotechnol Bioeng 2013; 111:1265-71. [DOI: 10.1002/bit.25168] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 10/25/2013] [Accepted: 11/26/2013] [Indexed: 11/11/2022]
Affiliation(s)
- S. Rolland du Roscoat
- Laboratoire 3SR; UMR CNRS 5521; Université Joseph Fourier de Grenoble; Grenoble-INP; Domaine Universitaire, BP53 38041 Grenoble Cedex 9 France
- European Synchrotron Radiation Facility; ID 19, BP 220 38043 Grenoble Cedex 9 France
| | - J.M.F. Martins
- Laboratoire d'Etudes des Transferts en Hydrologie et Environnement (LTHE); UMR 5564 CNRS- Université Joseph Fourier de Grenoble; Grenoble-INP; Grenoble Cedex 9 France
| | - P. Séchet
- Laboratoire des Ecoulements Géophysiques et Industriels (LEGI); UMR CNRS 5519; Université Joseph Fourier de Grenoble; Grenoble-INP; Grenoble Cedex 9 France
| | - E. Vince
- Laboratoire d'Etudes des Transferts en Hydrologie et Environnement (LTHE); UMR 5564 CNRS- Université Joseph Fourier de Grenoble; Grenoble-INP; Grenoble Cedex 9 France
| | - P. Latil
- Laboratoire 3SR; UMR CNRS 5521; Université Joseph Fourier de Grenoble; Grenoble-INP; Domaine Universitaire, BP53 38041 Grenoble Cedex 9 France
| | - C. Geindreau
- Laboratoire 3SR; UMR CNRS 5521; Université Joseph Fourier de Grenoble; Grenoble-INP; Domaine Universitaire, BP53 38041 Grenoble Cedex 9 France
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