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Puigserver D, Herrero J, Carmona JM. Mobilization pilot test of PCE sources in the transition zone to aquitards by combining mZVI and biostimulation with lactic acid. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 877:162751. [PMID: 36921871 DOI: 10.1016/j.scitotenv.2023.162751] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 02/05/2023] [Accepted: 03/05/2023] [Indexed: 05/06/2023]
Abstract
The potential toxic and carcinogenic effects of chlorinated solvents in groundwater on human health and aquatic ecosystems require very effective remediation strategies of contaminated groundwater to achieve the low legal cleanup targets required. The transition zones between aquifers and bottom aquitards occur mainly in prograding alluvial fan geological contexts. Hence, they are very frequent from a hydrogeological point of view. The transition zone consists of numerous thin layers of fine to coarse-grained clastic fragments (e.g., medium sands and gravels), which alternate with fine-grained materials (clays and silts). When the transition zones are affected by DNAPL spills, free-phase pools accumulate on the less conductive layers. Owing to the low overall conductivity of this zone, the pools are very recalcitrant. Little field research has been done on transition zone remediation techniques. Injection of iron microparticles has the disadvantage of the limited accessibility of this reagent to reach the entire source of contamination. Biostimulation of indigenous microorganisms in the medium has the disadvantage that few of the microorganisms are capable of complete biodegradation to total mineralization of the parent contaminant and metabolites. A field pilot test was conducted at a site where a transition zone existed in which DNAPL pools of PCE had accumulated. In particular, the interface with the bottom aquitard was where PCE concentrations were the highest. In this pilot test, a combined strategy using ZVI in microparticles and biostimulation with lactate in the form of lactic acid was conducted. Throughout the test it was found that the interdependence of the coupled biotic and abiotic processes generated synergies between these processes. This resulted in a greater degradation of the PCE and its transformation products. With the combination of the two techniques, the mobilization of the contaminant source of PCE was extremely effective.
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Affiliation(s)
- Diana Puigserver
- Department of Mineralogy, Petrology and Applied Geology. Faculty of Earth Sciences, University of Barcelona (UB), Water Research Institute (IdRA-UB), Serra Húnter Tenure-elegible Lecturer, C/ Martí i Franquès, s/n, E-08028 Barcelona, Spain.
| | - Jofre Herrero
- Department of Mineralogy, Petrology and Applied Geology, Faculty of Earth Sciences, University of Barcelona (UB), Water Research Institute (IdRA-UB), C/ Martí i Franquès, s/n, E-08028 Barcelona, Spain.
| | - José M Carmona
- Department of Mineralogy, Petrology and Applied Geology, Faculty of Earth Sciences, University of Barcelona (UB), Water Research Institute (IdRA-UB), C/ Martí i Franquès, s/n, E-08028 Barcelona, Spain.
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Berrelleza-Valdez F, Parades-Aguilar J, Peña-Limón CE, Certucha-Barragán MT, Gámez-Meza N, Serrano-Palacios D, Medina-Juárez LA, Calderón K. A novel process of the isolation of nitrifying bacteria and their development in two different natural lab-scale packed-bed bioreactors for trichloroethylene bioremediation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 241:211-218. [PMID: 31004998 DOI: 10.1016/j.jenvman.2019.04.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/11/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
Trichloroethylene (TCE) is a carcinogenic compound that is commonly present in groundwater and has been detected in drinking water sources for Mexican towns in the Mexico-US border area. Nitrifying bacteria, such as Nitrosomonas europaea, have been shown to be capable of degrading halogenated compounds, including TCE, but it is difficult to obtain high cell concentrations of these bacteria. The aim of the present study was to generate biomass of a nitrifying bacterial consortium from the sludge of an urban wastewater treatment plant (WWTP) and evaluate its capacity to biodegrade TCE in two different natural lab-scaled packed bed bioreactors. The consortium was isolated by a novel method using a continuous stirred-tank bioreactor inoculated with activated sludge from the Domos WWTP located in Cd. Obregón, Sonora, Mexico. The bioreactor was fed with specific media to cultivate ammonia-oxidizing bacteria at a dilution rate near the maximum specific growth rate reported for Nitrosomonas europaea. Optical density and suspended solids measurements were performed to determine the culture biomass production, and the presence of inorganic nitrogen species was determined by spectrophotometry. The presence of nitrifying ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) was confirmed by PCR amplification, and biofilm formation was observed by scanning electron microscopy. Batch-scale experiments confirmed the biodegradative activity of the isolated consortium, which was subsequently fixed in an inorganic carrier as zeolite and a synthetic carrier such as polyurethane to both be used as lab-scale packed-bed bioreactors, with up to 58.63% and 62.7% of TCE biodegradation achieved, respectively, demonstrating a possible alternative for TCE bioremediation in environmental and engineering systems.
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Affiliation(s)
- Fernando Berrelleza-Valdez
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico
| | - Jonathan Parades-Aguilar
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico
| | - Carlos E Peña-Limón
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico.
| | - María Teresa Certucha-Barragán
- Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico
| | - Nohemí Gámez-Meza
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico
| | - Denisse Serrano-Palacios
- Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, Antonio Caso S/N. C.P., 85130, Ciudad Obregón, Sonora, Mexico
| | - Luis Angel Medina-Juárez
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico.
| | - Kadiya Calderón
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio S/N. CP., 83000, Hermosillo, Sonora, Mexico.
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Sheu YT, Chen SC, Chien CC, Chen CC, Kao CM. Application of a long-lasting colloidal substrate with pH and hydrogen sulfide control capabilities to remediate TCE-contaminated groundwater. JOURNAL OF HAZARDOUS MATERIALS 2015; 284:222-232. [PMID: 25463237 DOI: 10.1016/j.jhazmat.2014.11.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/15/2014] [Accepted: 11/19/2014] [Indexed: 06/04/2023]
Abstract
A long-lasting emulsified colloidal substrate (LECS) was developed for continuous carbon and nanoscale zero-valent iron (nZVI) release to remediate trichloroethylene (TCE)-contaminated groundwater under reductive dechlorinating conditions. The developed LECS contained nZVI, vegetable oil, surfactants (Simple Green™ and lecithin), molasses, lactate, and minerals. An emulsification study was performed to evaluate the globule droplet size and stability of LECS. The results show that a stable oil-in-water emulsion with uniformly small droplets (0.7 μm) was produced, which could continuously release the primary substrates. The emulsified solution could serve as the dispensing agent, and nZVI particles (with diameter 100-200 nm) were distributed in the emulsion evenly without aggregation. Microcosm results showed that the LECS caused a rapid increase in the total organic carbon concentration (up to 488 mg/L), and reductive dechlorination of TCE was significantly enhanced. Up to 99% of TCE (with initial concentration of 7.4 mg/L) was removed after 130 days of operation. Acidification was prevented by the production of hydroxide ion by the oxidation of nZVI. The formation of iron sulfide reduced the odor from produced hydrogen sulfide. Microbial analyses reveal that dechlorinating bacteria existed in soils, which might contribute to TCE dechlorination.
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Affiliation(s)
- Y T Sheu
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - S C Chen
- Department of Life Sciences, National Central University, Chung-Li, Taiwan
| | - C C Chien
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taiwan
| | - C C Chen
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan
| | - C M Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan.
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Miceli JF, Garcia-Peña I, Parameswaran P, Torres CI, Krajmalnik-Brown R. Combining microbial cultures for efficient production of electricity from butyrate in a microbial electrochemical cell. BIORESOURCE TECHNOLOGY 2014; 169:169-174. [PMID: 25048958 PMCID: PMC4284095 DOI: 10.1016/j.biortech.2014.06.090] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/06/2014] [Accepted: 06/25/2014] [Indexed: 05/25/2023]
Abstract
Butyrate is an important product of anaerobic fermentation; however, it is not directly used by characterized strains of the highly efficient anode respiring bacteria (ARB) Geobacter sulfurreducens in microbial electrochemical cells. By combining a butyrate-oxidizing community with a Geobacter rich culture, we generated a microbial community which outperformed many naturally derived communities found in the literature for current production from butyrate and rivaled the highest performing natural cultures in terms of current density (∼ 11A/m(2)) and Coulombic efficiency (∼ 70%). Microbial community analyses support the shift in the microbial community from one lacking efficient ARB in the marine hydrothermal vent community to a community consisting of ∼ 80% Geobacter in the anode biofilm. This demonstrates the successful production and adaptation of a novel microbial culture for generating electrical current from butyrate with high current density and high Coulombic efficiency, by combining two mixed microbial cultures containing complementing biochemical pathways.
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Affiliation(s)
- Joseph F Miceli
- Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
| | - Ines Garcia-Peña
- Bioprocesses Department, Unidad Profesional Interdisciplinaria de Biotecnología, IPN P.O. Box 07340, Mexico City, Mexico
| | - Prathap Parameswaran
- Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
| | - César I Torres
- Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; Chemical Engineering Program, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, USA.
| | - Rosa Krajmalnik-Brown
- Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA.
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Liang SH, Kuo YC, Chen SH, Chen CY, Kao CM. Development of a slow polycolloid-releasing substrate (SPRS) biobarrier to remediate TCE-contaminated aquifers. JOURNAL OF HAZARDOUS MATERIALS 2013; 254-255:107-115. [PMID: 23611795 DOI: 10.1016/j.jhazmat.2013.03.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/04/2013] [Accepted: 03/20/2013] [Indexed: 06/02/2023]
Abstract
In this study, an in situ slow polycolloid-releasing substrate (SPRS) biobarrier system was developed to continuously provide biodegradable substrates for the enhancement of trichloroethylene (TCE) reductive dechlorination. The produced SPRS contained vegetable oil (used as a slow-released substrate), cane molasses [used as an early-stage (fast-degradable) substrate], and surfactants [Simple Green (SG) and soya lecithin (SL)]. An emulsification study was performed to evaluate the globule droplet size and stability of SPRS. The distribution and migration of the SPRS were evaluated in a column experiment, and an anaerobic microcosm study was performed to assess the capability of SPRS to serve as a slow and long-term carbon-releasing substrate for TCE dechlorination. The results show that a stable oil-in-water (W/O, 50/50) emulsion (SPRS) with uniformly small droplets (D₁₀, 0.93 μm) has been produced, continuously supplying primary substrates. The emulsion containing the surfactant mixture (with 72 mg/L SL and 71 mg/L SG) had a small absolute value of the zeta potential, which reduced the inter-particle repulsion, leading the emulsion droplets to adhere to one another after collision. The addition of SPRS creates anaerobic conditions and leads to a more complete and thorough removal of TCE through biodegradation and sorption mechanisms.
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Affiliation(s)
- S H Liang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Y C Kuo
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - S H Chen
- Institute of Urban Environment, Chinese Academy of Science, Xiamen, China
| | - C Y Chen
- Formosa Plastics Corp., Taiwan, Kaohsiung, Taiwan
| | - C M Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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