Pub Date : 2025-08-15DOI: 10.1016/j.wri.2025.100316
Aleksandra Klimonda, Izabela Kowalska
This study investigates the potential of forward osmosis (FO) for concentrating industrial wastewater obtained from the rinsing stage of esterquat-based cationic surfactant production. The raw wastewater exhibited a high chemical oxygen demand (COD) of approximately 20,000 mg O2/L and a significant concentration of cationic surfactants (CSs) from the esterquat group (∼2500 mg/L). The FO process with 1 M NaCl reduced wastewater volume by 50 %, resulting in a twofold increase in COD and CSs. An increase in the feed solution salinity (67–612 mg Cl−/L) confirmed the occurrence of reverse salt flux, while total organic carbon (TOC) in the draw solution at the end of the process reached ∼200 mg/L, indicating partial organic contaminants transfer through the membrane. These results demonstrate that FO is effective for concentrating wastewater and supports circular economy strategies by enabling water reuse and reducing freshwater consumption.
{"title":"Concentrating esterquat-based surfactant wastewater via forward osmosis: A step toward reuse","authors":"Aleksandra Klimonda, Izabela Kowalska","doi":"10.1016/j.wri.2025.100316","DOIUrl":"10.1016/j.wri.2025.100316","url":null,"abstract":"<div><div>This study investigates the potential of forward osmosis (FO) for concentrating industrial wastewater obtained from the rinsing stage of esterquat-based cationic surfactant production. The raw wastewater exhibited a high chemical oxygen demand (COD) of approximately 20,000 mg O<sub>2</sub>/L and a significant concentration of cationic surfactants (CSs) from the esterquat group (∼2500 mg/L). The FO process with 1 M NaCl reduced wastewater volume by 50 %, resulting in a twofold increase in COD and CSs. An increase in the feed solution salinity (67–612 mg Cl<sup>−</sup>/L) confirmed the occurrence of reverse salt flux, while total organic carbon (TOC) in the draw solution at the end of the process reached ∼200 mg/L, indicating partial organic contaminants transfer through the membrane. These results demonstrate that FO is effective for concentrating wastewater and supports circular economy strategies by enabling water reuse and reducing freshwater consumption.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100316"},"PeriodicalIF":7.5,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rainwater quality is strongly influenced by industrial activity. Simultaneously, amid increasing water scarcity, it states a potential supplementary water resource. Therefore, monitoring its quality is essential. This is one of the first studies aiming to assess the quality of rainwater collected in an industrial area (in Lower Silesia, Poland), combined with an assessment of heavy metals (HMs) toxicity to evaluate its ecological risk. Rainwater samples were collected from five locations (drainage ditches and retention tanks). Selected physicochemical parameters (pH, electric conductivity, total suspended and dissolved solids, total phosphorus, BOD5, and COD), ions (Ca, Cl−, SO42−, F−, Al, nitrogen compounds), and selected HMs (Cu, Ni, Cr, Cd) were analyzed in a certified laboratory. Ecological risk was assessed using the risk quotient (RQ) method by comparing maximum observed concentrations with literature-derived predicted no-effect concentrations (PNEC). Most parameters met World Health Organization guidelines, except for Ni (up to 0.098 mg/L), and Cl- (up to 302 mg/L), suggesting possible contamination from industrial emissions. Ca was the most abundant cation (108 mg/L). Rainwater pH was rather neutral. Cu was the most prevalent heavy metal (concentrations up to 0.1 mg/L), and RQ values up to 2000, indicating high ecological risk. Cr posed the lowest ecological risk. The elevated Ni, and Cl− concentrations suggest that untreated rainwater is unsuitable for direct reuse. To mitigate risks, appropriate treatment, e.g., filtration, membrane processes, or disinfection (depending on the expected outcomes), is recommended. The findings highlight the need for effective rainwater management and the environmental impact of industrial activities.
{"title":"Rainwater harvesting in a Polish industrial park: Toxicity, treatment, and use","authors":"Martyna Grzegorzek , Szymon Szymczewski , Joanna Struk-Sokołowska , Bartosz Kaźmierczak","doi":"10.1016/j.wri.2025.100315","DOIUrl":"10.1016/j.wri.2025.100315","url":null,"abstract":"<div><div>Rainwater quality is strongly influenced by industrial activity. Simultaneously, amid increasing water scarcity, it states a potential supplementary water resource. Therefore, monitoring its quality is essential. This is one of the first studies aiming to assess the quality of rainwater collected in an industrial area (in Lower Silesia, Poland), combined with an assessment of heavy metals (HMs) toxicity to evaluate its ecological risk. Rainwater samples were collected from five locations (drainage ditches and retention tanks). Selected physicochemical parameters (pH, electric conductivity, total suspended and dissolved solids, total phosphorus, BOD<sub>5</sub>, and COD), ions (Ca, Cl<sup>−</sup>, SO<sub>4</sub><sup>2−</sup>, F<sup>−</sup>, Al, nitrogen compounds), and selected HMs (Cu, Ni, Cr, Cd) were analyzed in a certified laboratory. Ecological risk was assessed using the risk quotient (RQ) method by comparing maximum observed concentrations with literature-derived predicted no-effect concentrations (PNEC). Most parameters met World Health Organization guidelines, except for Ni (up to 0.098 mg/L), and Cl- (up to 302 mg/L), suggesting possible contamination from industrial emissions. Ca was the most abundant cation (108 mg/L). Rainwater pH was rather neutral. Cu was the most prevalent heavy metal (concentrations up to 0.1 mg/L), and RQ values up to 2000, indicating high ecological risk. Cr posed the lowest ecological risk. The elevated Ni, and Cl<sup>−</sup> concentrations suggest that untreated rainwater is unsuitable for direct reuse. To mitigate risks, appropriate treatment, e.g., filtration, membrane processes, or disinfection (depending on the expected outcomes), is recommended. The findings highlight the need for effective rainwater management and the environmental impact of industrial activities.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100315"},"PeriodicalIF":7.5,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-31DOI: 10.1016/j.wri.2025.100313
Elahe Irandoost , Ahmad Ghorbanpour , Hadi Balouei Jamkhaneh , Peiman Ghasemi , Erfan Babaee Tirkolaee
Mining is seen as a water-consuming industry, whereas the number of mining industries increases, followed by the excessive consumption of groundwater. An efficient water management system, pursuing a global objective of sustainable development and circular solutions, is needed at the production process level. Hence, to separate economic development and growth from the excessive consumption of resources, the alternative Circular Economy (CE) model is recommended as a new paradigm of the economy for sustainable development. This study aims to design a dynamic model which allows the analysis of various scenarios in line with sustainable Water Consumption Management (WCM) in the mining industries, considering the components of CE. In this work, the water system of mining industries is modeled using the System Dynamics (SD) approach in a southern province of Iran, given the impact of components of the CE on water demand, industrial balance, and groundwater volume by 2041. Findings demonstrate that implementing three strategies of reduction, recovery and reuse in the mining industries of Bushehr Province through public policies encourages the use of water consumption reduction technology in the mining industry units, wherein greet growth in the number of active units, 90 % reduction in the stagnant units, 92 % reduction in water consumption per capita and 70 % reduction in the water demand of mining industries are observed. Therefore, compliance with CE principles in this industry can solve the main concerns of Water Resources Management (WRM), such as increasing water productivity, reducing water withdrawal from existing sources, and reducing per capita water consumption.
{"title":"Sustainable-circular water resources management in the mining industry using system dynamics modeling","authors":"Elahe Irandoost , Ahmad Ghorbanpour , Hadi Balouei Jamkhaneh , Peiman Ghasemi , Erfan Babaee Tirkolaee","doi":"10.1016/j.wri.2025.100313","DOIUrl":"10.1016/j.wri.2025.100313","url":null,"abstract":"<div><div>Mining is seen as a water-consuming industry, whereas the number of mining industries increases, followed by the excessive consumption of groundwater. An efficient water management system, pursuing a global objective of sustainable development and circular solutions, is needed at the production process level. Hence, to separate economic development and growth from the excessive consumption of resources, the alternative Circular Economy (CE) model is recommended as a new paradigm of the economy for sustainable development. This study aims to design a dynamic model which allows the analysis of various scenarios in line with sustainable Water Consumption Management (WCM) in the mining industries, considering the components of CE. In this work, the water system of mining industries is modeled using the System Dynamics (SD) approach in a southern province of Iran, given the impact of components of the CE on water demand, industrial balance, and groundwater volume by 2041. Findings demonstrate that implementing three strategies of reduction, recovery and reuse in the mining industries of Bushehr Province through public policies encourages the use of water consumption reduction technology in the mining industry units, wherein greet growth in the number of active units, 90 % reduction in the stagnant units, 92 % reduction in water consumption per capita and 70 % reduction in the water demand of mining industries are observed. Therefore, compliance with CE principles in this industry can solve the main concerns of Water Resources Management (WRM), such as increasing water productivity, reducing water withdrawal from existing sources, and reducing per capita water consumption.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100313"},"PeriodicalIF":7.5,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144780238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-30DOI: 10.1016/j.wri.2025.100314
Marcin Sidoruk , Ireneusz Cymes , Skwierawski Andrzej , Mirosław Skorbiłowicz
With the intensification of aquaculture and its environmental consequences, natural wastewater treatment methods are gaining increasing importance. This study assessed the effectiveness of two nature-based solutions (treatment ditches and sedimentation ponds) in improving the quality of effluents from four trout farms. Water quality parameters were analyzed before and after treatment, focusing on nitrogen compounds, organic matter, total suspended solids, and oxygen dynamics. Statistical analyses revealed significant correlations between selected indicators. Treatment ditches were particularly effective in removing nitrogen compounds, notably ammonia and nitrite, while sedimentation ponds showed greater efficiency in reducing organic matter and Biochemical oxygen demand (BOD5). However, an increase in suspended solids was observed in some cases, especially on Farm 4 (34 %). These findings highlight that ditches are more suited to rapid nitrogen reduction, whereas ponds provide stable organic matter treatment but may require monitoring for solid accumulation. The combined use of both systems can enhance wastewater treatment outcomes and mitigate the environmental impact of intensive aquaculture. The results contribute to a better understanding of cost-effective and sustainable strategies for managing aquaculture effluents.
{"title":"Evaluating the effectiveness of natural wastewater treatment systems from intensive trout aquaculture facilities","authors":"Marcin Sidoruk , Ireneusz Cymes , Skwierawski Andrzej , Mirosław Skorbiłowicz","doi":"10.1016/j.wri.2025.100314","DOIUrl":"10.1016/j.wri.2025.100314","url":null,"abstract":"<div><div>With the intensification of aquaculture and its environmental consequences, natural wastewater treatment methods are gaining increasing importance. This study assessed the effectiveness of two nature-based solutions (treatment ditches and sedimentation ponds) in improving the quality of effluents from four trout farms. Water quality parameters were analyzed before and after treatment, focusing on nitrogen compounds, organic matter, total suspended solids, and oxygen dynamics. Statistical analyses revealed significant correlations between selected indicators. Treatment ditches were particularly effective in removing nitrogen compounds, notably ammonia and nitrite, while sedimentation ponds showed greater efficiency in reducing organic matter and Biochemical oxygen demand (BOD<sub>5</sub>). However, an increase in suspended solids was observed in some cases, especially on Farm 4 (34 %). These findings highlight that ditches are more suited to rapid nitrogen reduction, whereas ponds provide stable organic matter treatment but may require monitoring for solid accumulation. The combined use of both systems can enhance wastewater treatment outcomes and mitigate the environmental impact of intensive aquaculture. The results contribute to a better understanding of cost-effective and sustainable strategies for managing aquaculture effluents.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100314"},"PeriodicalIF":7.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144770658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-26DOI: 10.1016/j.wri.2025.100312
Benfu Luo , Jie Yu , Weiwei Huang , Xiang Zhou , Jinyin Li , Qiang Zhang , Haiyan Ning , Jiuzheng Wang , Haixin He , Yujing Yan , Yuhang Liu
Sauce-flavored liquor wastewater is characterized by high concentrations of complex organic compounds that resist degradation, resulting in chemical oxygen demand (COD) values well above the permissible limit of 15 mg/L despite multi-stage treatment. This study systematically optimized the operational parameters for both ozone-only oxidation and O3/H2O2 co-oxidation using one-factor experiments, orthogonal design, and response surface methodology to evaluate their efficacy in deep COD reduction. Under optimized conditions, ozone-only oxidation achieved only a 60 % COD removal efficiency, with low ozone utilization efficiency and high dosage requirements. To address these shortcomings, an O3/H2O2 combined oxidation approach was adopted. At pH 8.5 with ozone and hydrogen peroxide dosages of 100 mg/L and 94 mg/L, respectively, the COD removal efficiency increased markedly to 78.6 %, reducing effluent COD to 9 mg/L while lowering ozone consumption by 28.6 %. Kinetic analysis confirmed adherence to a second-order reaction model. The O3/H2O2 co-oxidation technology thus offers superior efficiency and cost-effectiveness for treating recalcitrant sauce-flavored liquor wastewater, presenting a promising industrial solution for the deep treatment of hard-to-degrade organic effluents.
{"title":"Experimental research of combined ozone/hydrogen peroxide oxidative degradation of chemical oxygen demand in sauce-flavored liquor wastewater","authors":"Benfu Luo , Jie Yu , Weiwei Huang , Xiang Zhou , Jinyin Li , Qiang Zhang , Haiyan Ning , Jiuzheng Wang , Haixin He , Yujing Yan , Yuhang Liu","doi":"10.1016/j.wri.2025.100312","DOIUrl":"10.1016/j.wri.2025.100312","url":null,"abstract":"<div><div>Sauce-flavored liquor wastewater is characterized by high concentrations of complex organic compounds that resist degradation, resulting in chemical oxygen demand (COD) values well above the permissible limit of 15 mg/L despite multi-stage treatment. This study systematically optimized the operational parameters for both ozone-only oxidation and O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub> co-oxidation using one-factor experiments, orthogonal design, and response surface methodology to evaluate their efficacy in deep COD reduction. Under optimized conditions, ozone-only oxidation achieved only a 60 % COD removal efficiency, with low ozone utilization efficiency and high dosage requirements. To address these shortcomings, an O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub> combined oxidation approach was adopted. At pH 8.5 with ozone and hydrogen peroxide dosages of 100 mg/L and 94 mg/L, respectively, the COD removal efficiency increased markedly to 78.6 %, reducing effluent COD to 9 mg/L while lowering ozone consumption by 28.6 %. Kinetic analysis confirmed adherence to a second-order reaction model. The O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub> co-oxidation technology thus offers superior efficiency and cost-effectiveness for treating recalcitrant sauce-flavored liquor wastewater, presenting a promising industrial solution for the deep treatment of hard-to-degrade organic effluents.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100312"},"PeriodicalIF":4.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-11DOI: 10.1016/j.wri.2025.100311
Bakhtiar Ali Samejo , Manoj P. Rayaroth , Chongqing Wang , Xun Sun , Grzegorz Boczkaj
The hydrated electron (e−aq) has received significant attention in advanced oxidation processes (AOPs) and currently in advanced reduction processes (ARPs). This review offers an up-to-date information about the structure, reactivity, and stability of e−aq and environmental applications. Various ARPs, particularly generating e−aq such as UV/reductants (sulfite, iodide, dithionite and ferrous ion), and innovative technologies (e-beam, plasma, sonochemistry, photocatalysis) are discussed. Optimal conditions needed to produce enough e−aq, benefits and drawbacks of each system are given in this review. Moreover, the degradation effectiveness of chlorinated and fluorinated chemicals, nitro-derivatives, and other compounds are discussed. It has been found that effectiveness of ARPs, varied with the utilized processes. Per- and polyfluoroalkyl substances (PFAS) were reduced effectively using UV/indole and UV/sulfite processes. UV/iodide needed more time to degrade them. Among the various co-existing interfering matrices, dissolved organic matter was a crucial e−aq scavenger. But, low amounts of humic acids (HA) could boost photo-reductive pollutants degradation. In addition, e−aq -based photochemical methods effectively reduced inorganic compounds i.e., bromates (BrO3−), nitrates (NO3−), arsenic in a form of As(V) and As(III). Types of scavengers as well as methods for identification of reductive species contributing to degradation mechanism were discussed. Decrease of the matrix effect provide additional processes which will allow to preconcentrate target pollutants and eliminate most of matrix components – such approaches based on effective separation techniques like adsorption or membrane processes are currently under high interest.
Finally, impact of process variables on ARPs effectiveness, such as pH, dissolved oxygen, temperature, pollutant concentration, and UV intensity are discussed. Still debatable is effect of dissolved oxygen, high scavenging effect was reported for several systems, including UV/iodide – anaerobic conditions obtained by nitrogen or argon purging where needed. Other studies (UV/sulfite) showed minor effect, probably by oxygen removal using excess of reductant. Preference of basic pH and high selectivity makes the ARPs a promising alternative to AOPs.
{"title":"Hydrated electrons and other reductive species - properties, formation and applications in advanced reduction processes for degradation of emerging organic pollutants – a review","authors":"Bakhtiar Ali Samejo , Manoj P. Rayaroth , Chongqing Wang , Xun Sun , Grzegorz Boczkaj","doi":"10.1016/j.wri.2025.100311","DOIUrl":"10.1016/j.wri.2025.100311","url":null,"abstract":"<div><div>The hydrated electron (e<sup>−</sup><sub>aq</sub>) has received significant attention in advanced oxidation processes (AOPs) and currently in advanced reduction processes (ARPs). This review offers an up-to-date information about the structure, reactivity, and stability of e<sup>−</sup><sub>aq</sub> and environmental applications. Various ARPs, particularly generating e<sup>−</sup><sub>aq</sub> such as UV/reductants (sulfite, iodide, dithionite and ferrous ion), and innovative technologies (e-beam, plasma, sonochemistry, photocatalysis) are discussed. Optimal conditions needed to produce enough e<sup>−</sup><sub>aq</sub>, benefits and drawbacks of each system are given in this review. Moreover, the degradation effectiveness of chlorinated and fluorinated chemicals, nitro-derivatives, and other compounds are discussed. It has been found that effectiveness of ARPs, varied with the utilized processes. Per- and polyfluoroalkyl substances (PFAS) were reduced effectively using UV/indole and UV/sulfite processes. UV/iodide needed more time to degrade them. Among the various co-existing interfering matrices, dissolved organic matter was a crucial e<sup>−</sup><sub>aq</sub> scavenger. But, low amounts of humic acids (HA) could boost photo-reductive pollutants degradation. In addition, e<sup>−</sup><sub>aq</sub> -based photochemical methods effectively reduced inorganic compounds i.e., bromates (BrO<sub>3</sub><sup>−</sup>), nitrates (NO<sub>3</sub><sup>−</sup>), arsenic in a form of As(V) and As(III). Types of scavengers as well as methods for identification of reductive species contributing to degradation mechanism were discussed. Decrease of the matrix effect provide additional processes which will allow to preconcentrate target pollutants and eliminate most of matrix components – such approaches based on effective separation techniques like adsorption or membrane processes are currently under high interest.</div><div>Finally, impact of process variables on ARPs effectiveness, such as pH, dissolved oxygen, temperature, pollutant concentration, and UV intensity are discussed. Still debatable is effect of dissolved oxygen, high scavenging effect was reported for several systems, including UV/iodide – anaerobic conditions obtained by nitrogen or argon purging where needed. Other studies (UV/sulfite) showed minor effect, probably by oxygen removal using excess of reductant. Preference of basic pH and high selectivity makes the ARPs a promising alternative to AOPs.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100311"},"PeriodicalIF":7.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-10DOI: 10.1016/j.wri.2025.100310
Jillian P. Fry , Betelhem A. Higi , Aaliyah Philippe-Auguste , Brianna C. Hutchins , Sya B. Kedzior
Freezing is an effective and widely used food preservation method, and frozen food must be thawed safely. The running water method (RWM) involves continuously running cold water over frozen food and is described as a safe and quicker alternative to thawing in a refrigerator. This thawing method appears to be commonly used in food processing and food service settings, but it has received little attention from food supply chain and/or sustainability researchers. A recirculating faucet device that mimics RWM is available in the U.S. We conducted eight thawing trials with two food types, ground beef (2.27 kg) and a seafood mix (0.91 kg), to compare thawing time and use of water and energy. The thaw methods were: RWM with food placed directly in a sink (unsubmerged), RWM in a container (submerged), a recirculating faucet with submerged food, and a refrigerator. Thawing in a refrigerator took 2-3 days, and the other methods took 74 to 198 minutes. The recirculating faucet used about 9 liters of water for each thaw trial, and RWM used 709 to 1466 liters. Estimated energy use by the recirculating faucet was higher but comparable to refrigerator thawing. In all trials, tap water was warmer than 21°C (the maximum water temperature for RWM in U.S. food safety regulations), but the recirculating water cooled to less than 21°C during thawing with the faucet device. Climate change is warming some water sources, and research is needed on implications for food safety and food thawing guidelines.
{"title":"Quick food thawing with running water versus a recirculating faucet: Comparison of time to thaw and use of water and energy","authors":"Jillian P. Fry , Betelhem A. Higi , Aaliyah Philippe-Auguste , Brianna C. Hutchins , Sya B. Kedzior","doi":"10.1016/j.wri.2025.100310","DOIUrl":"10.1016/j.wri.2025.100310","url":null,"abstract":"<div><div>Freezing is an effective and widely used food preservation method, and frozen food must be thawed safely. The running water method (RWM) involves continuously running cold water over frozen food and is described as a safe and quicker alternative to thawing in a refrigerator. This thawing method appears to be commonly used in food processing and food service settings, but it has received little attention from food supply chain and/or sustainability researchers. A recirculating faucet device that mimics RWM is available in the U.S. We conducted eight thawing trials with two food types, ground beef (2.27 kg) and a seafood mix (0.91 kg), to compare thawing time and use of water and energy. The thaw methods were: RWM with food placed directly in a sink (unsubmerged), RWM in a container (submerged), a recirculating faucet with submerged food, and a refrigerator. Thawing in a refrigerator took 2-3 days, and the other methods took 74 to 198 minutes. The recirculating faucet used about 9 liters of water for each thaw trial, and RWM used 709 to 1466 liters. Estimated energy use by the recirculating faucet was higher but comparable to refrigerator thawing. In all trials, tap water was warmer than 21°C (the maximum water temperature for RWM in U.S. food safety regulations), but the recirculating water cooled to less than 21°C during thawing with the faucet device. Climate change is warming some water sources, and research is needed on implications for food safety and food thawing guidelines.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100310"},"PeriodicalIF":4.5,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Untreated discharges from mining activities threaten aquatic ecosystems, affecting water quality and biodiversity. This study develops a methodology for estimating environmental liabilities in aquatic systems, focusing on Segovia, Colombia (2010–2017). Using historical data (2010–2017), recent monitoring (2021–2023), and modelling tools (HEC-RAS and WASP), water and sediment quality indices were applied to quantify impacts, emphasizing heavy metals and cyanide. The methodology integrated diverse indices to evaluate contamination levels, including the Aquatic Toxicity Index (ATI) for water quality and the Pollutant Load Index (PLI) for sediments. Results revealed increased contaminant concentrations downstream, such as lead (0.4 mg/L) and suspended solids (61 mg/L), exceeding regulatory limits. While local pressures like domestic and illegal mining discharges complicate the pollution scenario, the findings confirm significant environmental liabilities from untreated discharges, impacting ecosystem services and community health. The study demonstrates that, despite pre-existing contamination, mining activities notably degrade water and sediment quality. It highlights critical deposition zones where contaminants accumulate, serving as focal points for remediation. The developed methodology offers a replicable framework, integrating past and current data, modelling, and tailored indices to assess aquatic liabilities effectively. This research provides actionable insights for mitigating mining pollution and restoring affected ecosystems. Bridging gaps in environmental liability quantification supports informed decision-making for environmental management and policy development in mining-impacted regions.
{"title":"Development of a methodology for identifying and quantifying mining environmental liabilities in aquatic ecosystems: A case study of Segovia, Colombia","authors":"Wilfredo Marimon-Bolívar , John Chavarro Diaz , Armando Sarmiento , Nathalie Toussaint Jimenez","doi":"10.1016/j.wri.2025.100307","DOIUrl":"10.1016/j.wri.2025.100307","url":null,"abstract":"<div><div>Untreated discharges from mining activities threaten aquatic ecosystems, affecting water quality and biodiversity. This study develops a methodology for estimating environmental liabilities in aquatic systems, focusing on Segovia, Colombia (2010–2017). Using historical data (2010–2017), recent monitoring (2021–2023), and modelling tools (HEC-RAS and WASP), water and sediment quality indices were applied to quantify impacts, emphasizing heavy metals and cyanide. The methodology integrated diverse indices to evaluate contamination levels, including the Aquatic Toxicity Index (ATI) for water quality and the Pollutant Load Index (PLI) for sediments. Results revealed increased contaminant concentrations downstream, such as lead (0.4 mg/L) and suspended solids (61 mg/L), exceeding regulatory limits. While local pressures like domestic and illegal mining discharges complicate the pollution scenario, the findings confirm significant environmental liabilities from untreated discharges, impacting ecosystem services and community health. The study demonstrates that, despite pre-existing contamination, mining activities notably degrade water and sediment quality. It highlights critical deposition zones where contaminants accumulate, serving as focal points for remediation. The developed methodology offers a replicable framework, integrating past and current data, modelling, and tailored indices to assess aquatic liabilities effectively. This research provides actionable insights for mitigating mining pollution and restoring affected ecosystems. Bridging gaps in environmental liability quantification supports informed decision-making for environmental management and policy development in mining-impacted regions.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100307"},"PeriodicalIF":4.5,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-04DOI: 10.1016/j.wri.2025.100309
Martyna Grzegorzek , Joanna Struk-Sokołowska , Urszula Kotowska , Agnieszka I. Olbert , Fausto A. Canales , Bartosz Kaźmierczak
Despite their protected status, national parks may serve as receptors for anthropogenic pollutants such as benzotriazoles (BTRs) and bisphenols (BPs), raising concerns about aquatic ecosystem health and public exposure. In this context, this study aims to assess the occurrence of six BTRs and ten BPs across two sampling campaigns (SCs) in the lakes and streams of Killarney National Park (KNP), Ireland, revealing spatial variation across six sampling points (SPs). A Wilcoxon test revealed no statistically significant differences between individual concentrations in the two SCs. This research utilized ultrasound-assisted emulsification-microextraction for analytes isolation and gas chromatography-mass spectrometry for detection (USAEME-GC/MS) to determine BTRs and BPs concentrations in KNP's water bodies. Among the 34.4 % of occurrences above the limit of detection, BPA, 5Cl-BTR, and UV-P were consistently found across all sampling points and campaigns. Two BTRs (1H-BTR, 4Me-BTR) and five BPs (BPC, BPCl2, BPE, BPG, BPM) were below detection levels in both SCs. The maximum concentrations for BTRs reached 1.537 μg/L (5Cl-BTR, SP2, SC2). BPA concentrations peaked at 7.753 μg/L (SP6, SC2), exceeding the EU's predicted no-effect concentration for freshwater (1.5 μg/L) in six instances across the KNP samples. These findings highlight the importance of targeted monitoring and management strategies in protected areas, which align with the EU Water Framework Directive objectives. This preliminary exploration of BTRs and BPs in KNP water bodies could serve as a valuable basis and benchmark for assessing environmental quality in KNP and similar protected areas worldwide.
{"title":"Occurrence, sources and impacts of benzotriazoles and bisphenols in water bodies within protected areas: Killarney National Park, Ireland","authors":"Martyna Grzegorzek , Joanna Struk-Sokołowska , Urszula Kotowska , Agnieszka I. Olbert , Fausto A. Canales , Bartosz Kaźmierczak","doi":"10.1016/j.wri.2025.100309","DOIUrl":"10.1016/j.wri.2025.100309","url":null,"abstract":"<div><div>Despite their protected status, national parks may serve as receptors for anthropogenic pollutants such as benzotriazoles (BTRs) and bisphenols (BPs), raising concerns about aquatic ecosystem health and public exposure. In this context, this study aims to assess the occurrence of six BTRs and ten BPs across two sampling campaigns (SCs) in the lakes and streams of Killarney National Park (KNP), Ireland, revealing spatial variation across six sampling points (SPs). A Wilcoxon test revealed no statistically significant differences between individual concentrations in the two SCs. This research utilized ultrasound-assisted emulsification-microextraction for analytes isolation and gas chromatography-mass spectrometry for detection (USAEME-GC/MS) to determine BTRs and BPs concentrations in KNP's water bodies. Among the 34.4 % of occurrences above the limit of detection, BPA, 5Cl-BTR, and UV-P were consistently found across all sampling points and campaigns. Two BTRs (1H-BTR, 4Me-BTR) and five BPs (BPC, BPCl2, BPE, BPG, BPM) were below detection levels in both SCs. The maximum concentrations for BTRs reached 1.537 μg/L (5Cl-BTR, SP2, SC2). BPA concentrations peaked at 7.753 μg/L (SP6, SC2), exceeding the EU's predicted no-effect concentration for freshwater (1.5 μg/L) in six instances across the KNP samples. These findings highlight the importance of targeted monitoring and management strategies in protected areas, which align with the EU Water Framework Directive objectives. This preliminary exploration of BTRs and BPs in KNP water bodies could serve as a valuable basis and benchmark for assessing environmental quality in KNP and similar protected areas worldwide.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100309"},"PeriodicalIF":4.5,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Emerging organic contaminants (EOCs) pose significant impacts to the aquatic environment due to their persistence and toxicity. This study analyzed the occurrence of 68 EOCs in eight categories in the water phase and sludge at an industrial WWTP in China consisting of a conventional biotreatment and an advanced treatment (fiber filtration plus chlorination). The results demonstrated effective removal of pharmaceuticals (PhMs) and antibiotics (ATBs) through biotreatment (84.8 % for PhMs, 79.2 % for ATBs) and advanced treatment (78.6 % for PhMs, 64.7 % for ATBs). The total removal efficiencies of Pesticides (PEST), phthalate esters (PAEs), organophosphate esters (OPEs), and UV filters (UVFS) were 56.4 %, 22.3 %, 56.7 %, and 49.6 %, respectively. In contrast, no removal of perfluoroalkyl chemicals (PFAS) (−68.5 %). Mass balance analysis revealed that OPEs, PhMs and UVFS were mainly removed through biodegradation, while ATBs were mainly removed through sludge adsorption. The study also found a correlation between the partition coefficients (LogKd) and their octanol-water partition coefficients (logKow). The ecological risk quotient highlighted perfluorooctanesulfonate (PFOS), imidacloprid (IMI), and clothianidin (CLO) as high-risk contaminants. This study reveals the combined process of secondary and advanced treatment in WWTPs can effectively remove EOCs, such as PhMs (96.7 %) and ATBs (92.6 %), providing guidance for the development of targeted technologies to mitigate the risks of EOCs.
{"title":"Occurrence, removal, and ecological risk assessment of Emerging organic contaminants in an industrial WWTP","authors":"Yunhai Zhang , Ruiqin Yin , Xueping Yu , Jiawei Zhou , Yong Chen , Yongjun Zhang","doi":"10.1016/j.wri.2025.100308","DOIUrl":"10.1016/j.wri.2025.100308","url":null,"abstract":"<div><div>Emerging organic contaminants (EOCs) pose significant impacts to the aquatic environment due to their persistence and toxicity. This study analyzed the occurrence of 68 EOCs in eight categories in the water phase and sludge at an industrial WWTP in China consisting of a conventional biotreatment and an advanced treatment (fiber filtration plus chlorination). The results demonstrated effective removal of pharmaceuticals (PhMs) and antibiotics (ATBs) through biotreatment (84.8 % for PhMs, 79.2 % for ATBs) and advanced treatment (78.6 % for PhMs, 64.7 % for ATBs). The total removal efficiencies of Pesticides (PEST), phthalate esters (PAEs), organophosphate esters (OPEs), and UV filters (UVFS) were 56.4 %, 22.3 %, 56.7 %, and 49.6 %, respectively. In contrast, no removal of perfluoroalkyl chemicals (PFAS) (−68.5 %). Mass balance analysis revealed that OPEs, PhMs and UVFS were mainly removed through biodegradation, while ATBs were mainly removed through sludge adsorption. The study also found a correlation between the partition coefficients (LogK<sub>d</sub>) and their octanol-water partition coefficients (logK<sub>ow</sub>). The ecological risk quotient highlighted perfluorooctanesulfonate (PFOS), imidacloprid (IMI), and clothianidin (CLO) as high-risk contaminants. This study reveals the combined process of secondary and advanced treatment in WWTPs can effectively remove EOCs, such as PhMs (96.7 %) and ATBs (92.6 %), providing guidance for the development of targeted technologies to mitigate the risks of EOCs.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100308"},"PeriodicalIF":4.5,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号