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Devault DA, Amalric L, Bristeau S, Cruz J, Tapie N, Karolak S, Budzinski H, Lévi Y. Removal efficiency of emerging micropollutants in biofilter wastewater treatment plants in tropical areas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10940-10966. [PMID: 33105006 DOI: 10.1007/s11356-020-10868-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
We studied the removal of 61 emerging micropollutants, including illicit drugs, in a biofilter wastewater treatment plant located in the French Indies (Martinique). Raw wastewater concentrations were the highest for paracetamol followed by caffeine, naproxen, ibuprofen, its metabolite 2-hydroxyibuprofen, atenolol, ketoprofen, furosemide, methylparaben, cocaine, benzoylecgonine, and 11-nor-delta-9-carboxytetrahydrocannabinol (THC-COOH). The calculated removals were better than those reported in the literature, while the cumulative removal efficacy (i.e., removal of the total mass load) was estimated to be 92 ± 4%. However, this good performance may be partly explained by the removal of paracetamol (also named acetaminophen) and caffeine, which represented 86.4% of the total mass load. Our results point to the adsorption of some molecules on sludge, thus raising the question about local soil pollution from sludge spreading.
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Affiliation(s)
- Damien Alain Devault
- Département Sciences et Technologies, Centre Universitaire de Formation et de Recherche, RN3 BP 53, 97660, Dembeni, Mayotte, France.
- Public Health and Environment Laboratory Group, UMR 8079 Ecologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, University of Paris-Saclay, 5 rue Jean Baptiste Clément, 92290, Chatenay-Malabry, France.
| | - Laurence Amalric
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060, Orleans Cedex 2, France
| | - Sébastien Bristeau
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060, Orleans Cedex 2, France
| | - Justine Cruz
- CNRS, UMR 5805 EPOC (LPTC Research Group), Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Nathalie Tapie
- CNRS, UMR 5805 EPOC (LPTC Research Group), Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Sara Karolak
- Public Health and Environment Laboratory Group, UMR 8079 Ecologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, University of Paris-Saclay, 5 rue Jean Baptiste Clément, 92290, Chatenay-Malabry, France
| | - Hélène Budzinski
- CNRS, UMR 5805 EPOC (LPTC Research Group), Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Yves Lévi
- Public Health and Environment Laboratory Group, UMR 8079 Ecologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, University of Paris-Saclay, 5 rue Jean Baptiste Clément, 92290, Chatenay-Malabry, France
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Rolph CA, Villa R, Jefferson B, Brookes A, Choya A, Iceton G, Hassard F. From full-scale biofilters to bioreactors: Engineering biological metaldehyde removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:410-418. [PMID: 31176226 DOI: 10.1016/j.scitotenv.2019.05.304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/19/2019] [Accepted: 05/20/2019] [Indexed: 06/09/2023]
Abstract
Polar, low molecular weight pesticides such as metaldehyde are challenging and costly to remove from drinking water using conventional treatment methods. Although biological treatments can be effective at treating micropollutants, through biodegradation and sorption processes, only some operational biofilters have shown the ability to remove metaldehyde. As sorption plays a minor role for such polar organic micropollutants, biodegradation is therefore likely to be the main removal pathway. In this work, the biodegradation of metaldehyde was monitored, and assessed, in an operational slow sand filter. Long-term data showed that metaldehyde degradation improved when inlet concentrations increased. A comparison of inactive and active sand batch reactors showed that metaldehyde removal happened mainly through biodegradation and that the removal rates were greater after the biofilm was acclimated through exposure to high metaldehyde concentrations. This suggested that metaldehyde removal was reliant on enrichment and that the process could be engineered to decrease treatment times (from days to hours). Through-flow experiments using fluidised bed reactors, showed the same behaviour following metaldehyde acclimation. A 40% increase in metaldehyde removal was observed in acclimated compared with non-acclimated columns. This increase was sustained for >40 days, achieving an average of 80% removal and compliance (<0.1 μ L-1) for >20 days. An initial microbial analysis of the acclimated and non-acclimated biofilm from the same filter materials, showed that the microbial community in acclimated sand was significantly different. This work presents a novel conceptual template for a faster, chemical free, low cost, biological treatment of metaldehyde and other polar pollutants in drinking water. In addition, this is the first study to report kinetics of metaldehyde degradation in an active microbial biofilm at a WTW.
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Affiliation(s)
| | - Raffaella Villa
- Cranfield University, Bedfordshire MK43 0AL, UK; De Montfort University, Leicester, LE1 9BH, UK.
| | | | - Adam Brookes
- Anglian Water, Thorpewood House, Peterborough PE3 6WT, UK
| | - Andoni Choya
- Cranfield University, Bedfordshire MK43 0AL, UK; Department of Chemical Engineering, Faculty of Science and Technology, University of the Basque Country, Bilbao, Spain
| | - Gregg Iceton
- Newcastle University, Newcastle upon Tyne NE17RU, UK
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Duman O, Özcan C, Gürkan Polat T, Tunç S. Carbon nanotube-based magnetic and non-magnetic adsorbents for the high-efficiency removal of diquat dibromide herbicide from water: OMWCNT, OMWCNT-Fe 3O 4 and OMWCNT-κ-carrageenan-Fe 3O 4 nanocomposites. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:723-732. [PMID: 30384078 DOI: 10.1016/j.envpol.2018.10.071] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/15/2018] [Accepted: 10/15/2018] [Indexed: 05/04/2023]
Abstract
In this study, carbon nanotube-based adsorbents, oxidized multi-walled carbon nanotube (OMWCNT) with non-magnetic property and OMWCNT-Fe3O4 and OMWCNT-κ-carrageenan-Fe3O4 nanocomposites with magnetic property, having different structural and surface properties were prepared and their adsorptive properties for the removal of toxic diquat dibromide (DQ) herbicide from water by adsorption were determined in detail. For each adsorption system, the effects of initial DQ concentration, contact time and temperature on the adsorption processes were determined. Equilibrium time was found to be 300 min for DQ solutions. OMWCNT showed faster adsorption and higher maximum adsorption capacity value than magnetic adsorbents. With increasing initial herbicide concentration from 5.43 mg.L-1 to 16.3 mg.L-1, the values of initial sorption rate exhibited a decrease from 29.1 mg.g-1.min-1 to 4.28 mg.g-1.min-1 for OMWCNT-DQ system, from 1.21 mg.g-1.min-1 to 0.823 mg.g-1.min-1 for OMWCNT-Fe3O4-DQ system and from 0.674 mg.g-1.min-1 to 0.612 mg.g-1.min-1 OMWCNT-κ-carrageenan-Fe3O4 system. Maximum adsorption capacity value of OMWCNT was approximately 2.8-fold higher than magnetic OMWCNT-Fe3O4 and 5.4-fold higher than magnetic OMWCNT-κ-carrageenan-Fe3O4 at 25 °C. Adsorption kinetic and isotherm data obtained for all adsorption systems were well-fitted by pseudo second-order and Langmuir models, respectively. Thermodynamic parameters indicated that the adsorption of DQ onto carbon nanotube-based adsorbents was spontaneous and endothermic process. Furthermore, OMWCNT having the highest herbicide adsorption capacity could be regenerated and reused at least five times. This study showed that carbon nanotube-based adsorbents with magnetic and non-magnetic property were of high adsorption performance for the removal of DQ from water and could be promising adsorbent materials for the efficient removal of herbicides from wastewaters.
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Affiliation(s)
- Osman Duman
- Akdeniz University, Faculty of Science, Department of Chemistry, 07058, Antalya, Turkey.
| | - Ceren Özcan
- Akdeniz University, Faculty of Science, Department of Chemistry, 07058, Antalya, Turkey
| | - Tülin Gürkan Polat
- Akdeniz University, Faculty of Science, Department of Chemistry, 07058, Antalya, Turkey
| | - Sibel Tunç
- Akdeniz University, Faculty of Science, Department of Chemistry, 07058, Antalya, Turkey
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