Water Resources and Industry最新文献

{"title":"Evaluating the effectiveness of natural wastewater treatment systems from intensive trout aquaculture facilities","authors":"Marcin Sidoruk ,&nbsp;Ireneusz Cymes ,&nbsp;Skwierawski Andrzej ,&nbsp;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 (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.</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}

{"title":"Experimental research of combined ozone/hydrogen peroxide oxidative degradation of chemical oxygen demand in sauce-flavored liquor wastewater","authors":"Benfu Luo ,&nbsp;Jie Yu ,&nbsp;Weiwei Huang ,&nbsp;Xiang Zhou ,&nbsp;Jinyin Li ,&nbsp;Qiang Zhang ,&nbsp;Haiyan Ning ,&nbsp;Jiuzheng Wang ,&nbsp;Haixin He ,&nbsp;Yujing Yan ,&nbsp;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 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.</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}

{"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 ,&nbsp;Manoj P. Rayaroth ,&nbsp;Chongqing Wang ,&nbsp;Xun Sun ,&nbsp;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⁻_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.</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}

{"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 ,&nbsp;Betelhem A. Higi ,&nbsp;Aaliyah Philippe-Auguste ,&nbsp;Brianna C. Hutchins ,&nbsp;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}

{"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 ,&nbsp;John Chavarro Diaz ,&nbsp;Armando Sarmiento ,&nbsp;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}

{"title":"Occurrence, sources and impacts of benzotriazoles and bisphenols in water bodies within protected areas: Killarney National Park, Ireland","authors":"Martyna Grzegorzek ,&nbsp;Joanna Struk-Sokołowska ,&nbsp;Urszula Kotowska ,&nbsp;Agnieszka I. Olbert ,&nbsp;Fausto A. Canales ,&nbsp;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}

{"title":"Occurrence, removal, and ecological risk assessment of Emerging organic contaminants in an industrial WWTP","authors":"Yunhai Zhang ,&nbsp;Ruiqin Yin ,&nbsp;Xueping Yu ,&nbsp;Jiawei Zhou ,&nbsp;Yong Chen ,&nbsp;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_d) and their octanol-water partition coefficients (logK_ow). 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}

{"title":"Research and comparison of efficient electrochemical purification methods for bilge water using lead, aluminum, copper, and iron electrodes","authors":"Chin-Ko Yeh ,&nbsp;Hsiang-Cheng Hsu","doi":"10.1016/j.wri.2025.100306","DOIUrl":"10.1016/j.wri.2025.100306","url":null,"abstract":"<div><div>This study targets the effectiveness of electrochemical technology in treating bilge water from ships. Bilge water is complex in composition, containing seawater, freshwater, hydraulic oil, fats, oils, heavy metals, and other pollutants, posing a potential threat to the marine environment. The International Maritime Organization (IMO) has strict regulations regarding the treatment and discharge of bilge water. The electrochemical treatment technology proposed in this study uses aluminum/copper electrodes, purifying the wastewater through four steps: electrochemical oxidation, reduction, coagulation, and flotation. Experimental results showed that this technology could effectively reduce the alkalinity by 75 %, lower the pH value to between 7 and 8, reduce nitrate by 78 %, and nearly completely remove free chlorine and copper concentrations within 30 min. However, the removal of sulfate was limited. Compared to traditional treatment methods, the aluminum/copper electrochemical technology offers low energy consumption, reduced chemical usage, and good environmental compatibility, aligning with the United Nations' Sustainable Development Goals 6 (SDGs 6), Sustainable Development Goals 12 (SDGs 12), and Sustainable Development Goals 14 (SDGs 14), making it a promising alternative for bilge water treatment.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100306"},"PeriodicalIF":4.5,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523691","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}

{"title":"Wastewater electrolysis part 2 – Pilot reactor study for resource efficient applications in metal industry","authors":"Lena Hahn ,&nbsp;João Marcos Monteiro ,&nbsp;Ulrich Kunz ,&nbsp;Michael Sievers","doi":"10.1016/j.wri.2025.100304","DOIUrl":"10.1016/j.wri.2025.100304","url":null,"abstract":"<div><div>Electrochemical precipitation with rotating electrodes is investigated by a two-chamber pilot reactor. While deposits from disk surface of rotating electrodes are commonly removed by wipes this pilot reactor comprises of cathodic disks with newly developed composite materials for mitigation of deposits. The cathodic and anodic chamber were used for precipitation and neutralization reactions, respectively. Original wastewater samples with a total volume of 25 m³ were treated to remove the heavy metals Mn²⁺, Ni²⁺, Zn²⁺ as hydroxides below 0.5 mgMe²⁺/L. The coupling of precipitation and neutralization with same wastewater in one system was demonstrated without addition of chemicals such as acid, base, precipitation and flocculation chemicals thus demonstrating a resource efficient treatment option for wastewater of the metal industry. The complete removal of heavy metals was ensured by proper control of pH through adjustment of power input into the electrolysis system independently of wastewater input composition.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100304"},"PeriodicalIF":4.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366299","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}

{"title":"Two-step double-chambered wastewater electrolysis to recover separated fractions of heavy metals and phosphate","authors":"Lena Hahn ,&nbsp;João Marcos Monteiro ,&nbsp;Ulrich Kunz ,&nbsp;Michael Sievers","doi":"10.1016/j.wri.2025.100305","DOIUrl":"10.1016/j.wri.2025.100305","url":null,"abstract":"<div><div>The separated recovery of heavy metals and phosphate through a two-step water electrolysis is investigated. The use of carbon-polymer composite cathode with non-sticking properties and a dimension-stable anode in two-chamber cells is investigated to treat original industrial wastewater from metal industry by minimal addition of salts to support process water recovery. The heavy metals and phosphates are precipitated as metal-hydroxides and magnesium/calcium-phosphates, respectively. For phosphate precipitation the addition of magnesium chloride, calcium oxide as well as a reverse osmosis (RO) concentrate of artificial water reservoir were investigated. The pH value in the first steps affects both the amount of heavy metals and phosphate precipitated and an optimal pH for the first step is found to increase the phosphate recovery at low heavy metal content. Moreover, the use of RO concentrate enables a chemical input free phosphate recovery.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"34 ","pages":"Article 100305"},"PeriodicalIF":4.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321407","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}