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Shi Q, Cao M, Xiong Y, Kaur P, Fu Q, Smith A, Yates R, Gan J. Alternating water sources to minimize contaminant accumulation in food plants from treated wastewater irrigation. WATER RESEARCH 2024; 255:121504. [PMID: 38555786 DOI: 10.1016/j.watres.2024.121504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024]
Abstract
The use of treated wastewater (TWW) for agricultural irrigation is a critical measure in advancing sustainable water management and agricultural production. However, TWW irrigation in agriculture serves as a conduit to introduce many contaminants of emerging concern (CECs) into the soil-plant-food continuum, posing potential environmental and human health risks. Currently, there are few practical options to mitigate the potential risk while promoting the safe reuse of TWW. In this greenhouse study, the accumulation of 11 commonly occurring CECs was evaluated in three vegetables (radish, lettuce, and tomato) subjected to two different irrigation schemes: whole-season irrigation with CEC-spiked water (FULL), and half-season irrigation with CEC-spiked water, followed by irrigation with clean water for the remaining season (HALF). Significant decreases (57.0-99.8 %, p < 0.05) in the accumulation of meprobamate, carbamazepine, PFBS, PFBA, and PFHxA in edible tissues were found for the HALF treatment with the alternating irrigation scheme. The CEC accumulation reduction was attributed to reduced chemical input, soil degradation, plant metabolism, and plant growth dilution. The structural equation modeling showed that this mitigation strategy was particularly effective for CECs with a high bioaccumulation potential and short half-life in soil, while less effective for those that are more persistent. The study findings demonstrate the effectiveness of this simple and on-farm applicable management strategy that can be used to minimize the potential contamination of food crops from the use of TWW and other marginal water sources in agriculture, while promoting safe reuse and contributing to environmental sustainability.
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Affiliation(s)
- Qingyang Shi
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States
| | - Meixian Cao
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States; CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yaxin Xiong
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States
| | - Parminder Kaur
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States
| | - Qiuguo Fu
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research (UFZ), Permoserstraße 15, 04318 Leipzig, Germany
| | - Aspen Smith
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States
| | - Rebecca Yates
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States.
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Um M, Fan L, Jones OAH, Roddick F. A comparative study of programs to predict direct photolysis rates in wastewater systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168921. [PMID: 38040346 DOI: 10.1016/j.scitotenv.2023.168921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/22/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
A wide range of contaminants of emerging concern (CECs) are known to photodegrade in the surface layers of natural waters and wastewater systems. Computer programs such as GCSolar, ABIWAS, APEX, EXAMS and WASP model the direct photolysis rates and half-lives of CECs, usually as a function of the solar irradiance, water molar light extinction, chemical molar light absorption and reaction quantum yield. These programs have been used extensively for studies in natural water systems in the northern hemisphere. However, their applicability to wastewater treatment systems such as waste stabilisation ponds and/or southern hemisphere conditions is not well studied. Here we present a comparative review of the major software used and their potential applicability to predicting direct photolysis rates and half-lives in wastewater. The newer equivalent monochromatic wavelength, approach, which enables the approximation of polychromatic photodegradation via a monochromatic wavelength is also discussed. Current software appears to be less suitable for modelling photodegradation in wastewater systems in the southern hemisphere than the northern hemisphere as their internal databases are based on data from natural waters in the northern hemisphere. This may be because there have been few attempts to model CEC photolysis in wastewater systems, particularly in the southern hemisphere. This indicates that either new software needs to be developed, or these programs need to be updated with data on wastewater matrices and/or the southern hemisphere. We anticipate this review will promote the adaptation of these programs as tools to further the understanding CEC photodegradation in wastewater treatment plants.
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Affiliation(s)
- Michelle Um
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Linhua Fan
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Oliver A H Jones
- School of Science, RMIT University, Bundoora West Campus, 71, Bundoora, Victoria 3083, Australia.
| | - Felicity Roddick
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
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Zhao J, Shang C, Yin R. A High-Radical-Yield Advanced Oxidation Process Coupling Far-UVC Radiation with Chlorinated Cyanurates for Micropollutant Degradation in Water. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:18867-18876. [PMID: 37158565 DOI: 10.1021/acs.est.3c00255] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Increasing the radical yield and reducing energy consumption would enhance the sustainability and competitiveness of advanced oxidation processes (AOPs) for micropollutant degradation in water. We herein report a novel AOP coupling far-UVC radiation at 222 nm with chlorinated cyanurates (termed the UV222/Cl-cyanurates AOP) for radical generation and micropollutant abatement in water. We experimentally determined the concentrations of HO•, Cl•, and ClO• in the UV222/Cl-cyanurates AOP in deionized water and swimming pool water. The radical concentrations are 10-27 times and 4-13 times, respectively, higher than those in the UV254/Cl-cyanurates AOP and the well-documented UV254/chlorine AOP under comparable conditions (e.g., same UV fluence and oxidant dosing). We determined the molar absorption coefficients and innate quantum yields of two chlorine species and two Cl-cyanurates at 222 nm and incorporated these parameters into a kinetic model. The model enables accurate prediction of oxidant photodecay rates as well as the pH impact on radical generation in the UV222/Cl-cyanurates AOP. We predicted the pseudo-first-order degradation rate constants of 25 micropollutants in the UV222/Cl-cyanurates AOP and demonstrated that many micropollutants can be degraded by >80% with a low UV fluence of 25 mJ cm-2. This work advances the fundamental photochemistry of chlorine and Cl-cyanurates at 222 nm and offers a highly effective engineering tool in combating micropollutants in water where Cl-cyanurates are suitable to use.
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Affiliation(s)
- Jing Zhao
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Chii Shang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
- Hong Kong Branch of Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Ran Yin
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
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Elliott SM, Gefell DJ, Kiesling RL, Hummel SL, King CK, Christen CH, Kohno S, Schoenfuss HL. Multiple lines of evidence for identifying potential hazards to fish from contaminants of emerging concern in Great Lakes tributaries. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2022; 18:1246-1259. [PMID: 34850546 PMCID: PMC9542151 DOI: 10.1002/ieam.4561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 10/28/2021] [Accepted: 11/29/2021] [Indexed: 06/13/2023]
Abstract
Contaminants of emerging concern (CECs; e.g., pharmaceuticals, flame retardants, pesticides, and industrial chemicals) are omnipresent throughout tributaries to the Great Lakes. Furthermore, CECs are often present at concentrations that are potentially hazardous to aquatic species. Since 2010, we characterized the presence of CECs at 309 sites within 47 Great Lakes tributaries and characterized responses of fathead minnow (Pimephales promelas) exposed to river water at a subset of 26 sites within four tributaries. Our work resulted in three independent lines of evidence related to the potential hazards of CEC exposure to fish. First, vulnerability (where vulnerability refers to likelihood) of surface waters to CEC presence was predicted using select watershed characteristics. Second, hazard to fish (where hazard means the potential for adverse biological responses) was predicted using screening values for a subset of CECs. Third, biological responses of fathead minnow exposed to river water in streamside exposures were measured. We assessed the congruence of these three lines of evidence for identifying sites with elevated hazards to CEC exposure. Predicted vulnerability and hazards agreed at 66% of all sites. Where the two indices did not agree, vulnerability often underestimated predicted hazard. When compared with measured biological responses from streamside exposures, predicted hazards agreed for 42% of samples. Furthermore, when predicted hazards for specific effect categories were compared with similar measured biomarkers, 26% and 46% of samples agreed for reproductive and physiological effect categories, respectively. Overall, vulnerability and hazard predictions tended to overestimate the measured biological responses, providing a protective estimate of the potential hazards of CEC exposure to fish. When used together, these three approaches can help resource managers prioritize management activities in minimizing hazards of CEC exposure and can be used by researchers to prioritize studies focused on understanding the hazards of CEC exposure to fish. Integr Environ Assess Manag 2022;18:1246-1259. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC). This article has been contributed to by US Government employees and their work is in the public domain in the USA.
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Affiliation(s)
| | | | | | | | | | | | - Satomi Kohno
- St. Cloud State University, St. CloudMinnesotaUSA
- Loyola UniversityChicagoIllinoisUSA
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Alvarez-Mora I, Mijangos L, Lopez-Herguedas N, Amigo JM, Eguiraun H, Salvoch M, Monperrus M, Etxebarria N. SETApp: A machine learning and image analysis based application to automate the sea urchin embryo test. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113728. [PMID: 35689888 DOI: 10.1016/j.ecoenv.2022.113728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/24/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Since countless xenobiotic compounds are being found in the environment, ecotoxicology faces an astounding challenge in identifying toxicants. The combination of high-throughput in vivo/in vitro bioassays with high-resolution chemical analysis is an effective way to elucidate the cause-effect relationship. However, these combined strategies imply an enormous workload that can hinder their implementation in routine analysis. The purpose of this study was to develop a new high throughput screening method that could be used as a predictive expert system that automatically quantifies the size increase and malformation of the larvae and, thus, eases the application of the sea urchin embryo test in complex toxicant identification pipelines such as effect-directed analysis. For this task, a training set of 242 images was used to calibrate the size-increase and malformation level of the larvae. Two classification models based on partial least squares discriminant analysis (PLS-DA) were built and compared. Moreover, Hierarchical PLS-DA shows a high proficiency in classifying the larvae, achieving a prediction accuracy of 84 % in validation. The scripts built along the work were compiled in a user-friendly standalone app (SETApp) freely accessible at https://github.com/UPV-EHU-IBeA/SETApp. The SETApp was tested in a real case scenario to fulfill the tedious requirements of a WWTP effect-directed analysis.
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Affiliation(s)
- Iker Alvarez-Mora
- Department of Analytical Chemistry, University of the Basque Country, Leioa, Biscay, Basque Country 48080, Spain; Plentzia Marine Station, University of the Basque Country, Plentzia, Biscay, Basque Country 48620, Spain.
| | - Leire Mijangos
- Department of Analytical Chemistry, University of the Basque Country, Leioa, Biscay, Basque Country 48080, Spain; Plentzia Marine Station, University of the Basque Country, Plentzia, Biscay, Basque Country 48620, Spain.
| | - Naroa Lopez-Herguedas
- Department of Analytical Chemistry, University of the Basque Country, Leioa, Biscay, Basque Country 48080, Spain; Plentzia Marine Station, University of the Basque Country, Plentzia, Biscay, Basque Country 48620, Spain.
| | - Jose M Amigo
- Department of Analytical Chemistry, University of the Basque Country, Leioa, Biscay, Basque Country 48080, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Biscay, Basque Country 48009, Spain.
| | - Harkaitz Eguiraun
- Plentzia Marine Station, University of the Basque Country, Plentzia, Biscay, Basque Country 48620, Spain; Department of Graphic Design and Engineering Projects, University of the Basque Country, Bilbao, Biscay, Basque Country 48013, Spain.
| | - Maddi Salvoch
- Department of Analytical Chemistry, University of the Basque Country, Leioa, Biscay, Basque Country 48080, Spain; Plentzia Marine Station, University of the Basque Country, Plentzia, Biscay, Basque Country 48620, Spain.
| | - Mathilde Monperrus
- Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux, Université de Pau et des Pays de l'Adour, Angelu, Basque Country 64000, France.
| | - Nestor Etxebarria
- Department of Analytical Chemistry, University of the Basque Country, Leioa, Biscay, Basque Country 48080, Spain; Plentzia Marine Station, University of the Basque Country, Plentzia, Biscay, Basque Country 48620, Spain.
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Zakari-Jiya A, Frazzoli C, Obasi CN, Babatunde BB, Patrick-Iwuanyanwu KC, Orisakwe OE. Pharmaceutical and personal care products as emerging environmental contaminants in Nigeria: A systematic review. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 94:103914. [PMID: 35738461 DOI: 10.1016/j.etap.2022.103914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/26/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
The increasingly broad and massive use of pharmaceuticals (human, veterinary) and personal care products in industrially developing nations makes their uncontrolled environmental and ecological impact a true concern. Focusing on Nigeria, this systematic literature search (databases: PubMed, ScienceDirect, Google Scholar, EMBASE, Scopus, Cochrane library and African Journals Online) aims to increase visibility to the issue. Among 275 articles identified, 7 were included in this systematic review. Studies indicated the presence of 11 personal care products (15.94 %) and 58 pharmaceutical products (84.06 %) in surface and ground water, leachates, runoffs, sludge, and sediments. The 42.86% (3/7) of reviewed studies reported 17 analgesics; 71.42 % (5/7) reported 16 antibiotics; 28.57 % (2/7) reported 5 lipid lowering drugs; 28.57% reported anti-malaria and fungal drugs; 14.29 % (1/7) reported estrogen drugs. Different studies report on sunscreen products, hormone, phytosterol, insect repellent, and β1 receptor. Gemfibrozil (<4-730 ng/L), Triclosan (55.1-297.7 ng/L), Triclocarban (35.6-232.4 ng/L), Trimethoprim (<1-388 ng/L) and Tramadol (<2-883 ng/L) had the highest range of concentrations. Findings confirm the need of i) legislation for environmental monitoring, including biota, ii) toxicological profiling of new market products, and iii) sensitization on appropriate use and disposal of pharmaceuticals and personal care products.
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Affiliation(s)
- Aliyu Zakari-Jiya
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Chiara Frazzoli
- Department of Cardiovascular and Endocrine-Metabolic Diseases, and Ageing, Istituto Superiore di Sanità (Italian National Institute of Health), Rome, Italy
| | - Cecilia Nwadiuto Obasi
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port-Harcourt, Port-Harcourt, Rivers State, Nigeria
| | - Bolaji Bernard Babatunde
- Department of Animal and Environmental Biology, Faculty of Science, University of Port-Harcourt, Port-Harcourt, Rivers State, Nigeria
| | - Kingsley C Patrick-Iwuanyanwu
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria; Department of Biochemistry, Faculty of Science, University of Port-Harcourt, Port-Harcourt, Rivers State, Nigeria
| | - Orish E Orisakwe
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria; Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port-Harcourt, Port-Harcourt, Rivers State, Nigeria.
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Becher J, Englisch C, Griebler C, Bayer P. Groundwater fauna downtown - Drivers, impacts and implications for subsurface ecosystems in urban areas. JOURNAL OF CONTAMINANT HYDROLOGY 2022; 248:104021. [PMID: 35605354 DOI: 10.1016/j.jconhyd.2022.104021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/07/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
Groundwater fauna (stygofauna) comprises organisms that have adapted to the dark subterranean environment over a course of thousands and millions of years, typically having slow metabolisms and long life cycles. They are crucial players in the groundwater of oxygenic aquifers, and contribute to various ecosystem services. Today's knowledge of their sensitivity to anthropogenic impacts is incomplete and a critical analysis of the general relevance of local findings is lacking. In this review, we focus on those areas with the highest interference between humans and stygofauna: cities. Here is where local pollution by various contaminants and heat strongly stresses the unique groundwater ecosystems. It is demonstrated that it is difficult to discern the influence of individual factors from the findings reported in field studies, and to extrapolate laboratory results to field conditions. The effects of temperature increase and chemical pollution vary strongly between tested species and test conditions. In general, previous findings indicate that heating, especially in the long-term, will increase mortality, and less adapted species are at risk of vanishing from their habitats. The same may be true for salinity caused by road de-icing in cold urban areas. Furthermore, high sensitivities were shown for ammonium, which will probably be even more pronounced with rising temperatures resulting in altered biodiversity patterns. Toxicity of heavy metals, for a variety of invertebrates, increases with time and chronic exposure. Our current knowledge reveals diverse potential impacts on groundwater fauna by urban pollution, but our insights gained so far can only be validated by standardized and long-term test concepts.
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Affiliation(s)
- Julia Becher
- Martin Luther University Halle-Wittenberg, Institute of Geosciences and Geography, Department of Applied Geology, Von-Seckendorff-Platz 3, 06120 Halle, Germany.
| | - Constanze Englisch
- University of Vienna, Department of Functional and Evolutionary Ecology, Division of Limnology, Djerassiplatz 1, 1030 Vienna, Austria
| | - Christian Griebler
- University of Vienna, Department of Functional and Evolutionary Ecology, Division of Limnology, Djerassiplatz 1, 1030 Vienna, Austria
| | - Peter Bayer
- Martin Luther University Halle-Wittenberg, Institute of Geosciences and Geography, Department of Applied Geology, Von-Seckendorff-Platz 3, 06120 Halle, Germany
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Bavumiragira JP, Ge J, Yin H. Fate and transport of pharmaceuticals in water systems: A processes review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153635. [PMID: 35124044 DOI: 10.1016/j.scitotenv.2022.153635] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Pharmaceuticals are globally consumed by humans and animals to support daily health and to treat disease. Following consumption, they may reach the aquatic environment either directly through the discharge of untreated wastewater to water bodies, or indirectly via treated wastewater as a result of their incomplete removal from wastewater treatment plants. This paper reviews the processes that control the occurrence and fate of pharmaceuticals in water systems, including sorption, photodegradation, hydrolysis and biodegradation. The degree to which these four processes occur is influenced by pharmaceutical types and their chemical structure as well as environmental factors such as sunlight, water depth, organic matter content, water chemistry, sediment properties, and type and abundance of microorganisms. Depending on the complex interactions of these factors, pharmaceutical compounds may be mineralized, partially degraded, or remain intact because they are resistant to degradation. Kinetic rate parameters and the half-life of a variety of pharmaceutical products are provided herein for the above processes under different environmental conditions. Usually, photodegradation and biodegradation represent dominant reaction processes, while hydrolysis only affects some pharmaceuticals, particularly antibiotics. The identified sorption and reaction rate parameters can be incorporated into a concise modeling framework to assess and predict longitudinal concentration profiles of pharmaceutical products in the manmade and natural systems, particularly when large amounts of pharmaceuticals are discharged during abnormal events such as a virus outbreak. Finally, future research is suggested, including the fate of transformed products (intermediates) in water systems.
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Affiliation(s)
- Jean Pierre Bavumiragira
- UNEP-Tongji Institute of Environment for Sustainable Development, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
| | - Jia'ning Ge
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
| | - Hailong Yin
- UNEP-Tongji Institute of Environment for Sustainable Development, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China.
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Pryce D, Khalil AME, Memon FA. Investigating the environmental costs of utilizing graphene-based adsorbents and pulsed power oxidation for the removal of emerging contaminants from urban wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 817:152985. [PMID: 35026249 DOI: 10.1016/j.scitotenv.2022.152985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Emerging contaminants continue to pose a threat to environmental quality that warrant mitigation. Novel technologies are being investigated that offer promise in their removal, yet it is important that the environmental costs of these treatments do not overshadow their benefits. With sustainability a key priority in global infrastructure development, insights into the environmental impact of new technologies is necessitated. In the present work, the environmental burden of three novel GBM (graphene-based material) filters (porous graphene, graphene oxide-based foam and hybrid combination) are quantified and compared at a flow rate of 1 m3/d by way of life cycle impact assessment with an alternative solution, an AOP-PPT (advanced oxidation process by pulsed power treatment). Initial results demonstrated negligible differences in overall environmental impact between the three GBM filter formats (7.7-7.9 pt), while significant asymmetry was observed with the AOP-PPT that incurred a total impact score of 67.9 pt. This disparity was attributed to the high energy demand of the AOP-PPT that was a key predictor of environmental cost in an India context due to the high proportion of non-renewable energy sourced. The GBM filters were also considered at a range of breakthrough times and contrasted against the AOP-PPT. Results showed that differences between GBM filters were negligible at all breakthrough periods and that multiple breakthroughs a day would be required before the AOP-PPT became environmentally favourable. Finally, due to the AOP-PPT affording inclusive disinfection, the environmental burden of a GBM filter was compared under different scenarios of incorporated disinfection. The total impact of the AOP-PPT achieving full disinfection was found to be 242.5 pt compared to only 26.8 pt for the GBM filter coupled with UV254 (ultraviolet 254 nm) treatment and 13.9 pt when incorporating chlorination/de-chlorination. These findings should support sustainable development goals when combating prevailing emerging contaminants in municipal wastewater.
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Affiliation(s)
- David Pryce
- College of Environment, Mathematics, and Physical Sciences, University of Exeter, EX4 4QF, United Kingdom.
| | - Ahmed M E Khalil
- College of Environment, Mathematics, and Physical Sciences, University of Exeter, EX4 4QF, United Kingdom
| | - Fayyaz A Memon
- College of Environment, Mathematics, and Physical Sciences, University of Exeter, EX4 4QF, United Kingdom
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10
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Duarte IA, Fick J, Cabral HN, Fonseca VF. Bioconcentration of neuroactive pharmaceuticals in fish: Relation to lipophilicity, experimental design and toxicity in the aquatic environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152543. [PMID: 34953825 DOI: 10.1016/j.scitotenv.2021.152543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
Uptake of contaminants is linked to their toxicity and is usually estimated through their lipophilicity (logKow). Here, we review current literature regarding bioconcentration, i.e. uptake of contaminants from the external environment only, and the effects of exposure to neuroactive pharmaceuticals in fish. We aim to determine if lipophilicity is a suitable predictor of bioconcentration of these compounds in fish, to identify major drivers of bioconcentration and explore the link between bioconcentration potential and toxicity, focusing on survival, growth, condition, behaviour and reproduction endpoints. Additionally, we compare concentrations known to elicit significant effects in fish with current environmental concentrations, identifying exposure risk in ecosystems. The majority of studies have focused on antidepressants, mainly fluoxetine, and encompasses mostly freshwater species. Few studies determined pharmaceuticals bioconcentration, and even a smaller portion combined bioconcentration with other toxicity endpoints. Results show that lipophilicity isn't a good predictor of neuroactive pharmaceuticals' bioconcentration in fish, which in turn is highly influenced by experimental parameters, including abiotic conditions, species and life-stage. The need for increased standardization of experimental settings is key towards improving accuracy of environmental risk assessments and application in future regulatory schemes. Still, increased fish lethality was linked to increased bioconcentration, yet no other correlations were observed when considering effects on growth, condition, behaviour or reproduction, likely as a result of insufficient and variable data. In the context of current environmental concentrations, several neuroactive pharmaceuticals were found to be potentially threatening, while data on occurrence is lacking for some compounds, particularly in brackish/marine systems. Specifically, nine compounds (fluoxetine, citalopram, sertraline, amitriptyline, venlafaxine, clozapine, carbamazepine, metamfetamine and oxazepam) were found at concentrations either above or critically close to minimum response concentrations, thus likely to affect fish in freshwater and brackish or marine environments, which supports further exploration in risk management strategies and monitoring programs in aquatic environments.
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Affiliation(s)
- Irina A Duarte
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - Jerker Fick
- Department of Chemistry, Umeå University, Umeå, Sweden
| | | | - Vanessa F Fonseca
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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11
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Ezugwu CI, Sonawane JM, Rosal R. Redox-active metal-organic frameworks for the removal of contaminants of emerging concern. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yusuf A, Sodiq A, Giwa A, Eke J, Pikuda O, Eniola JO, Ajiwokewu B, Sambudi NS, Bilad MR. Updated review on microplastics in water, their occurrence, detection, measurement, environmental pollution, and the need for regulatory standards. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118421. [PMID: 34756874 DOI: 10.1016/j.envpol.2021.118421] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/01/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
The gravity of the impending threats posed by microplastics (MPs) pollution in the environment cannot be over-emphasized. Several research studies continue to stress how important it is to curb the proliferation of these small plastic particles with different physical and chemical properties, especially in aquatic environments. While several works on how to monitor, detect and remove MPs from the aquatic environment have been published, there is still a lack of explicit regulatory framework for mitigation of MPs globally. A critical review that summarizes recent advances in MPs research and emphasizes the need for regulatory frameworks devoted to MPs is presented in this paper. These frameworks suggested in this paper may be useful for reducing the proliferation of MPs in the environment. Based on all reviewed studies related to MPs research, we discussed the occurrence of MPs by identifying the major types and sources of MPs in water bodies; examined the recent ways of detecting, monitoring, and measuring MPs routinely to minimize projected risks; and proposed recommendations for consensus regulatory actions that will be effective for MPs mitigation.
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Affiliation(s)
- Ahmed Yusuf
- Chemical Engineering Department, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Ahmed Sodiq
- College of Science and Engineering, Hamad Bin Khalifa University, Doha, Qatar
| | - Adewale Giwa
- Chemical Engineering Department, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Joyner Eke
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F Paul Anderson Tower Lexington, KY, 40506, USA
| | - Oluwadamilola Pikuda
- Department of Chemical Engineering, McGill University, Montreal, Quebec, H3A 0C5, Canada
| | - Jamiu O Eniola
- Civil and Environmental Engineering Department, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Bilkis Ajiwokewu
- Chemical and Petroleum Engineering Department, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Nonni Soraya Sambudi
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, 32610, Malaysia
| | - Muhammad Roil Bilad
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
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Li X, Li X, Feng Y, Wang X, Suo N, Yang S, Long Y, Zhang S. Production of an electro-biological particle electrode (EBPE) from lithium slag and its removal performance to salicylic acid in a three-dimensional electrocatalytic biological coupling reactor (3D-EBCR). CHEMOSPHERE 2021; 282:131020. [PMID: 34118629 DOI: 10.1016/j.chemosphere.2021.131020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Electro-biological particle electrode (EBPE) prepared by lithium slag was used to remove salicylic acid in a three-dimensional electrocatalytic biological coupling reactor (3D-EBCR). The physical and chemical properties of the EBPE, the removal performance of salicylic acid and the degradation mechanism were studied. Results revealed as follows: (1) the EBPE prepared by lithium slag contained effective catalytic components including Fe2O3, SnO2, ZnO, MnO, Rb2O and TiO2, with stable structure and good adsorption performance; (2) the 3D-EBCR with EBPE had strong adaptability to the current intensity in the range of 0.25-0.40 A, and the removal rates of COD and salicylic acid were maintained above 87.1% and 85.2% respectively; (3) salicylic acid was removed through the synergistic action of adsorption, electrochemical oxidation and biological action.
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Affiliation(s)
- Xinxin Li
- School of Civil Engineering and Architecture, University of Jinan, Jinan, 250022, China
| | - Xing Li
- Environmental Engineering Co., Ltd., Shandong Academy of Environmental Science, Jinan, 250001, China
| | - Yan Feng
- School of Civil Engineering and Architecture, University of Jinan, Jinan, 250022, China.
| | - Xinwei Wang
- China Urban Construction Design & Research Institute Co. Ltd (Shan Dong), Jinan, 250022, China
| | - Ning Suo
- School of Civil Engineering and Architecture, University of Jinan, Jinan, 250022, China
| | - Shumin Yang
- School of Civil Engineering and Architecture, University of Jinan, Jinan, 250022, China
| | - Yingying Long
- Weifang Architectural Design Institute, Weifang, 261031, China
| | - Shoubin Zhang
- School of Civil Engineering and Architecture, University of Jinan, Jinan, 250022, China
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