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Wang D, Shi D, Chen T, Zhou S, Yang Z, Li H, Yang D, Li J, Jin M. A mica filter enables bacterial enrichment from large volumes of natural water for sensitive monitoring of pathogens by nanopore sequencing. J Hazard Mater 2024; 472:134495. [PMID: 38714053 DOI: 10.1016/j.jhazmat.2024.134495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/09/2024]
Abstract
Nanopore sequencing is extremely promising for the high-throughput detection of pathogenic bacteria in natural water; these bacteria may be transmitted to humans and cause waterborne infectious diseases. However, the concentration of pathogenic bacteria in natural water is too low to be detected directly by nanopore sequencing. Herein, we developed a mica filter to enrich over 85% of bacteria from > 10 L of natural water in 100 min, which led to a 102-fold improvement in the assay limits of the MinION sequencer for assessing pathogenic bacteria. Correspondingly, the sequencing time of S. Typhi detection at a concentration as low as 105 CFU/L was reduced from traditional 48 h to 3 h. The bacterial adsorption followed pseudo-first-order kinetics and the successful adsorption of bacteria to the mica filter was confirmed by scanning electron microscopy and Fourier infrared spectroscopy et al. The mica filter remained applicable to a range of water samples whose quality parameters were within the EPA standard limits for freshwater water. The mica filter is thus an effective tool for the sensitive and rapid monitoring of pathogenic bacteria by nanopore sequencing, which can provide timely alerts for waterborne transmission events.
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Affiliation(s)
- Dongshuai Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Danyang Shi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Tianjiao Chen
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Shuqing Zhou
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Zhongwei Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Haibei Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Dong Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Junwen Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China
| | - Min Jin
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, PR China.
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Fang J, Dai Z, Li X, van der Hoek JP, Savic D, Medema G, van der Meer W, Liu G. Service-lines as major contributor to water quality deterioration at customer ends. Water Res 2023; 241:120143. [PMID: 37276656 DOI: 10.1016/j.watres.2023.120143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/16/2023] [Accepted: 05/28/2023] [Indexed: 06/07/2023]
Abstract
Biofilm detachment contributes to water quality deterioration. However, the contributions of biofilm detachment from different pipes have not been quantified or compared. Following the introduction of partial reverse osmosis (RO) in drinking water production, this study analyzed particles at customers' ends and tracked their origins to water distribution mains and service lines. For doing so, filter bags were installed in front of water meters to capture upstream detached particles, while biofilm from water main and service line were sampled by cutting pipe specimens. The results showed that elemental concentrations of the biofilm in mains were higher than those of service lines (54.3-268.5 vs. 27.1-44.4 μg/cm2), both dominated by Ca. Differently, filter bags were dominated by Fe/Mn (77.5-98.1%). After introducing RO, Ca significantly decreased in biofilms of mains but not service lines, but the released Fe/Mn rather than Ca arrived at customers' ends. The ATP concentrations of service lines were higher than mains, which decreased on mains but increased in service lines after introducing RO. For the core ASVs, 13/24 were shared by service lines (17), mains (21), and filter bags (17), which were assigned mainly to Nitrospira spp., Methylomagnum spp., Methylocytis spp., and IheB2-23 spp. According to source tracking results, service lines contributed more than mains to the particulate material collected by filter bags (57.6 ± 13.2% vs. 13.0 ± 11.6%). To the best of our knowledge, the present study provides the first evidence of service lines' direct and quantitative contributions to potential water quality deterioration at customers' ends. This highlights the need for the appropriate management of long-neglected service line pipes, e.g., regarding material selection, length optimization, and proper regulation.
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Affiliation(s)
- Jiaxing Fang
- Key Lab of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, PR China; Membrane Science and Technology, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500, AE, Enschede, the Netherlands; Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA, Delft, the Netherlands
| | - Zihan Dai
- Key Lab of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, PR China
| | - Xiaoming Li
- Key Lab of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, PR China
| | - Jan Peter van der Hoek
- Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA, Delft, the Netherlands; Waternet, P.O. Box 94370, 1090, GJ Amsterdam, the Netherlands
| | - Dragan Savic
- KWR Water Research Institute, P.O. Box 1072, 3430, BB, Nieuwegein, the Netherlands; Centre for Water Systems, University of Exeter, Exeter EX4 4QF, United Kingdom; University of Belgrade, Faculty of Civil Engineering, Department for Hydraulic and environmental engineering, Bulevar kralja Aleksandra 73, Belgrade, Serbia
| | - Gertjan Medema
- Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA, Delft, the Netherlands; KWR Water Research Institute, P.O. Box 1072, 3430, BB, Nieuwegein, the Netherlands; Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, 48823, USA
| | - Walter van der Meer
- Membrane Science and Technology, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500, AE, Enschede, the Netherlands; Oasen Water Company, PO BOX 122, 2800, AC, Gouda, the Netherlands
| | - Gang Liu
- Key Lab of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, PR China; Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA, Delft, the Netherlands.
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Yao M, Zhang Y, Dai Z, Ren A, Fang J, Li X, van der Meer W, Medema G, Rose JB, Liu G. Building water quality deterioration during water supply restoration after interruption: Influences of premise plumbing configuration. Water Res 2023; 241:120149. [PMID: 37270942 DOI: 10.1016/j.watres.2023.120149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/06/2023]
Abstract
Premise plumbing plays an essential role in determining the final quality of drinking water consumed by customers. However, little is known about the influences of plumbing configuration on water quality changes. This study selected parallel premise plumbing in the same building with different configurations, i.e., laboratory and toilet plumbing. Water quality deteriorations induced by premise plumbing under regular and interrupted water supply were investigated. The results showed that most of the water quality parameters did not vary under regular supply, except Zn, which was significantly increased by laboratory plumbing (78.2 to 260.7 µg/l). For the bacterial community, the Chao1 index was significantly increased by both plumbing types to a similar level (52 to 104). Laboratory plumbing significantly changed the bacterial community, but toilet plumbing did not. Remarkably, water supply interruption/restoration led to serious water quality deterioration in both plumbing types but resulted in different changes. Physiochemically, discoloration was observed only in laboratory plumbing, along with sharp increases in Mn and Zn. Microbiologically, the increase in ATP was sharper in toilet plumbing than in laboratory plumbing. Some opportunistic pathogen-containing genera, e.g., Legionella spp. and Pseudomonas spp., were present in both plumbing types but only in disturbed samples. This study highlighted the esthetic, chemical, and microbiological risks associated with premise plumbing, for which system configuration plays an important role. Attention should be given to optimizing premise plumbing design for managing building water quality.
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Affiliation(s)
- Mingchen Yao
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China; Sanitary engineering, Department of Water management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, Delft, GA 2600, the Netherlands
| | - Yue Zhang
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zihan Dai
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Anran Ren
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jiaxing Fang
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Membrane Science and Technology, Faculty of Science and Technology, University of Twente, P.O. Box 217, Enschede 7500AE, the Netherlands
| | - Xiaoming Li
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Walter van der Meer
- Membrane Science and Technology, Faculty of Science and Technology, University of Twente, P.O. Box 217, Enschede 7500AE, the Netherlands; Oasen Drinkwater, PO BOX 122, Gouda, AC 2800, the Netherlands
| | - Gertjan Medema
- Sanitary engineering, Department of Water management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, Delft, GA 2600, the Netherlands; KWR Watercycle Research Institute, P.O. Box 1072, Nieuwegein 3430 BB, the Netherlands; Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48823, United States of America
| | - Joan B Rose
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48823, United States of America
| | - Gang Liu
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China.
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