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Formation of disinfection byproducts in electrochemical water disinfection 电化学水消毒中消毒副产物的形成
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-11-03 DOI: 10.1016/j.coesh.2025.100685
Kaichao Yang , Zhen He
This review aims to examine DBP formation during electrochemical disinfection. The effects of electrochemically generated reactive species and water matrices are analyzed both qualitatively and quantitatively. Different DBP formation mechanisms/pathways between electrochemical and conventional chemical disinfection are discussed. The electrode materials play a critical role in the generation of different types of reactive species. The presence of bromide, ammonia, and carbonates can affect both the concentration and composition of DBPs by transforming reactive chlorine species into other species such as bromine radicals, chloramines, and carbonate radicals. Potential strategies for DBP control are proposed, including the reduction of DBP formation via pre-treatment process, electrode design and optimizing reactor operation, and post-treatment to remove the formed DBPs.
本文综述了电化学消毒过程中DBP的形成。定性和定量地分析了电化学生成的反应物质和水基质的影响。讨论了电化学和常规化学消毒之间DBP形成的不同机制/途径。电极材料在产生不同类型的反应物质中起着至关重要的作用。溴化物、氨和碳酸盐的存在可以通过将活性氯转化为其他物质(如溴自由基、氯胺和碳酸盐自由基)来影响dbp的浓度和组成。提出了控制DBP的潜在策略,包括通过预处理工艺、电极设计和优化反应器操作来减少DBP的形成,以及后处理去除形成的DBP。
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引用次数: 0
Erratum to “BiVO4-based photoanodes for the photoelectrocatalytic removal of trace organic pollutants from water: A mini review on recent developments” [Curr Opin Environ Sci Health 45 (June 2025) 1–1 100615] “基于bivo4的光阳极用于光电催化去除水中痕量有机污染物:近期发展综述”[当代观点,环境科学与健康45 (June 2025) 1-1 100615]
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-08-19 DOI: 10.1016/j.coesh.2025.100663
Agha Zeeshan Ali , Sanjeeb Mohapatra , Jan Peter van der Hoek , Henri Spanjers
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引用次数: 0
Microalgae-based treatment for wastewater management and valorization 以微藻为基础的废水处理及增值
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-08-23 DOI: 10.1016/j.coesh.2025.100662
Shailja Pant , Mukesh Goel , Naresh Kumar Sahoo , Qiuyan Yuan , Prangya Ranjan Rout
Wastewater treatment is a critical process for building a water-resilient economy, ensuring pollutant removal before environmental discharge. Conventional treatment methods, though effective, are energy-intensive, reliant on chemical processes, and generate large volumes of sludge, posing economic and environmental challenges. In recent years, microalgae-based wastewater treatment has emerged as a promising alternative due to its potential for efficient nutrient removal, biomass valorization, and carbon sequestration. However, despite its advantages, large-scale implementation remains constrained by operational costs, biomass harvesting inefficiencies, and variable treatment performance. Recent advancements in techno-economic assessments, bioprocess optimization, and multiomics approaches have improved system efficiency, cost-effectiveness, and bioproduct recovery. This study reviews the latest developments, opportunities, and challenges in microalgal wastewater treatment, providing insights into its feasibility and future prospects. A comprehensive understanding of emerging technologies and integrated system approaches will be crucial in advancing microalgal-based solutions for sustainable wastewater management.
污水处理是建设水韧性经济的关键过程,确保污染物在环境排放之前被去除。传统的处理方法虽然有效,但能源密集,依赖化学过程,产生大量污泥,对经济和环境构成挑战。近年来,基于微藻的废水处理因其高效去除营养物质、生物质增值和碳封存的潜力而成为一种有前途的替代方案。然而,尽管有其优势,大规模实施仍然受到运营成本、生物质收获效率低下和处理性能变化的限制。技术经济评估、生物过程优化和多组学方法的最新进展提高了系统效率、成本效益和生物产品回收率。本文综述了微藻废水处理的最新进展、机遇和挑战,并对其可行性和未来前景进行了展望。全面了解新兴技术和综合系统方法对于推进基于微藻的可持续废水管理解决方案至关重要。
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引用次数: 0
Capacity of constructed wetlands to control antibiotic resistance during wastewater treatment: Removal or dissemination? 人工湿地在污水处理过程中控制抗生素耐药性的能力:去除还是传播?
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-10-31 DOI: 10.1016/j.coesh.2025.100687
Ana María Leiva , Gladys Vidal
Within the One Health framework, constructed wetlands (CWs) are increasingly recognized as sustainable systems for mitigating antibiotic resistance (AR). However, their effectiveness in reducing—or potentially contributing to—the dissemination of AR remains debated. This review analyzes recent literature (2024–2025) to clarify the capacity of CWs in AR control. Bibliometric analysis indicates that current research mainly focuses on (1) novel substrates such as biochar, (2) integration with innovative technologies such as microbial fuel cells (MFCs), and (3) characterization of resistant microbial communities. Reported performances of CWs with biochar or coupled with MFCs show antibiotic removal efficiencies of 41–99 % and AR genes (ARGs) reductions of 0.5–1.0 log units. These results evidence that CWs are capable of decreasing ARGs and antibiotics rates from wastewater. However, more research is needed for improving performance and for scaling laboratories prototypes to real-scale CWs. Focusing on ARGs’ occurrence, they are frequently detected in CW substrates and effluents, with abundances up to 104 copies/mL and 10−2 copies/16S rDNA gene copy, respectively. Microbial community studies further suggest ARGs mobilization within CWs—from influent to substrates and plants—and their potential release into surrounding environments. Overall, CWs appear to function as “AR buffer systems”: reducing ARGs levels in liquid streams while facilitating their accumulation in substrates. This reservoir may pose environmental risks, particularly through the reuse of CW biomass in agriculture. Therefore, future research should prioritize risk assessment of CW substrates as potential vectors of AR dissemination.
在同一个健康框架内,人工湿地(CWs)越来越被认为是减轻抗生素耐药性(AR)的可持续系统。然而,它们在减少或可能促进AR传播方面的有效性仍存在争议。本综述分析了最近的文献(2024-2025),以阐明CWs在AR控制方面的能力。文献计量学分析表明,目前的研究主要集中在(1)新型底物,如生物炭;(2)与创新技术的整合,如微生物燃料电池(MFCs);(3)耐药微生物群落的表征。据报道,与生物炭结合或与MFCs结合的CWs的抗生素去除效率为41 - 99%,AR基因(ARGs)减少0.5-1.0 log单位。这些结果表明,化粪池能够降低废水中的ARGs和抗生素率。然而,需要更多的研究来提高性能,并将实验室原型扩展到实际规模的CWs。关注ARGs的发生,它们经常在CW底物和流出物中检测到,丰度分别高达104拷贝/mL和10 - 2拷贝/16S rDNA基因拷贝。微生物群落研究进一步表明,碳水化合物在碳水化合物中的动员——从进水到底物和植物——以及它们可能释放到周围环境中的可能性。总的来说,CWs似乎起着“AR缓冲系统”的作用:降低液体流中ARGs的水平,同时促进其在底物中的积累。这种储存库可能会造成环境风险,特别是通过在农业中重复使用CW生物质。因此,未来的研究应优先评估连续波底物作为AR传播潜在载体的风险。
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引用次数: 0
Intrinsic disinfection byproducts in free chlorine and chloramine systems: Formation of chlorite, chlorate, perchlorate, and chloronitramide anion 游离氯和氯胺系统中的固有消毒副产物:亚氯酸盐、氯酸盐、高氯酸盐和氯硝酰胺阴离子的形成
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-11-01 DOI: 10.1016/j.coesh.2025.100684
Julian L. Fairey , Ashley D. Pifer , David G. Wahman
Intrinsic disinfection byproducts are formed by reactions between disinfectant species and/or their decomposition products. In this review, we focus on a subset that accumulates in free chlorine and chloramine drinking water systems. First, we review the sequential formation of chlorite, chlorate, and perchlorate in hypochlorite feedstocks. Model simulations indicate chlorate and perchlorate can accumulate under realistic dosing conditions and can be managed with less concentrated feedstocks and climate-controlled storage. Second, we review the formation pathways of dichloramine and chloronitramide anion. Chloronitramide anion accumulation may be mitigated by increasing monochloramine stability and quenching reactive nitrogen species in its formation pathway.
固有消毒副产物是由消毒剂种类和/或其分解产物之间的反应形成的。在这篇综述中,我们重点研究了游离氯和氯胺饮用水系统中积累的一个亚群。首先,我们回顾了次氯酸盐原料中亚氯酸盐、氯酸盐和高氯酸盐的顺序形成。模型模拟表明,氯酸盐和高氯酸盐可以在实际的剂量条件下积累,并且可以通过较低浓度的原料和气候控制的储存进行管理。其次,综述了二氯胺和氯硝酰胺阴离子的形成途径。氯硝酰胺阴离子积累可以通过增加单氯胺稳定性和猝灭其形成途径中的活性氮来减轻。
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引用次数: 0
Wildfire-induced shifts in dissolved organic carbon reactivity toward trihalomethane formation 野火引起的溶解有机碳反应性向三卤甲烷形成的转变
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-10-11 DOI: 10.1016/j.coesh.2025.100679
Shiyue Zhang, Penghui Du, Alex Tat-Shing Chow
Wildfires increasingly degrade source-water quality, yet the reactivity of fire-altered dissolved organic carbon (DOC) toward trihalomethane (THM) formation remains unclear. This mini-review synthesizes 14 paired pre/post-fire datasets under a carbon-normalized framework (THM-specific formation potential, THM-SFP). (i) Occurrence: most studies show lower THM-SFP after fire from loss of oxygen-rich moieties. (ii) Severity: moderate burning can produce phenolic/carbonyl fragments, elevating THM-SFP, whereas high severity suppresses it. (iii) Rainfall: first flushes raise DOC and bulk THMs, while THM-SFP responses are mixed. Cross-study interpretation remains constrained by methodological heterogeneity and limited data. Findings support severity-stratified, time-resolved monitoring for post-fire water management.
野火日益降低水源水质,但火灾改变的溶解有机碳(DOC)对三卤甲烷(THM)形成的反应性尚不清楚。这篇小型综述在碳标准化框架(THM-specific formation potential, THM-SFP)下综合了14组配对的火灾前后数据集。(i)发生:大多数研究表明,火灾后由于富氧部分的损失,THM-SFP降低。(ii)严重程度:中度燃烧可以产生酚/羰基碎片,提高THM-SFP,而高严重程度则抑制它。(iii)降雨:第一次冲水会提高DOC和大量THMs,而THM-SFP响应是混合的。交叉研究解释仍然受到方法异质性和有限数据的限制。研究结果支持对火灾后水管理进行严重程度分层、时间分辨的监测。
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引用次数: 0
Mechanisms and potential for disinfection byproduct formation from peracetic acid 过氧乙酸消毒副产物形成的机理和潜力
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-10-08 DOI: 10.1016/j.coesh.2025.100677
Jiaqi Li, Ching-Hua Huang
Peracetic acid (PAA), an organic compound with the formula CH3CO3H, and a sterilant and disinfectant, has emerged as a promising alternative to free chlorine for achieving high-level disinfection in combined sewer overflow, wastewater, and stormwater. However, a major concern with any water disinfectant is its potential to react with natural organic matter or other constituents, leading to the unintentional formation of disinfection byproducts (DBPs). This review examines DBP formation during PAA disinfection and PAA-based advanced oxidation processes (AOPs), with an emphasis on studies published within the past five years. It summarizes the influence of halides, nitrite, and various AOP operational conditions on DBP formation. Additionally, it explores the mechanisms of DBP formation in the presence of halides during PAA disinfection, highlighting key intermediates involved in the reactions. The insights provided in this review offer valuable guidance for minimizing DBP formation in further applications of PAA in water treatment.
过氧乙酸(PAA)是一种化学式为CH3CO3H的有机化合物,也是一种灭菌剂和消毒剂,已成为一种有前途的游离氯替代品,可用于在综合下水道溢流、废水和雨水中实现高水平消毒。然而,任何水消毒剂的一个主要问题是它可能与天然有机物或其他成分发生反应,导致无意中形成消毒副产物(DBPs)。本文综述了PAA消毒和PAA基高级氧化过程(AOPs)中DBP的形成,重点介绍了过去五年发表的研究。总结了卤化物、亚硝酸盐和各种AOP操作条件对DBP形成的影响。此外,它还探讨了在PAA消毒过程中卤化物存在下DBP形成的机制,突出了参与反应的关键中间体。本文的研究结果为PAA在水处理中的进一步应用提供了有价值的指导。
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引用次数: 0
Beyond 1–2 carbon compounds: Emerging insights on higher-carbon disinfection byproducts 超越1-2碳化合物:对高碳消毒副产物的新见解
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-10-01 DOI: 10.1016/j.coesh.2025.100676
Zachary T. Kralles , Carsten Prasse
Disinfection byproducts (DBPs) are ubiquitous contaminants in drinking water that are formed through reactions between disinfectants and natural or anthropogenic precursors. While regulatory and research efforts have historically focused on 1–2 carbon DBPs, these compounds account for only a fraction of the total organic halogen and measured toxicity in finished drinking water. Recent research has shifted attention to higher-carbon DBPs with >2-carbon atoms (>C2 DBPs). We summarize recent advancements in the discovery, occurrence, and formation mechanisms of >C2 DBPs and highlight the need to integrate >C2 DBPs into toxicity frameworks to better assess their contribution to the overall toxicity of disinfected waters.
消毒副产物(DBPs)是饮用水中普遍存在的污染物,通过消毒剂与自然或人为前体之间的反应形成。虽然监管和研究工作历来集中在1-2碳dbp上,但这些化合物仅占饮用水中有机卤素总量和测量毒性的一小部分。最近的研究已将注意力转移到具有2碳原子的高碳DBPs (>C2 DBPs)上。我们总结了最近在发现、发生和形成机制方面的进展,并强调需要将>;C2 DBPs整合到毒性框架中,以更好地评估它们对消毒水的整体毒性的贡献。
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引用次数: 0
Constructed wetlands as a sustainable solution for pesticide pollution mitigation 人工湿地是缓解农药污染的可持续解决方案
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-09-18 DOI: 10.1016/j.coesh.2025.100672
Jyoti Singh , Mahima Choudhary , Rajesh Singh , Sujata Kashyap , Vinay Kumar Tyagi , Kalzang Chhoden , Sandeep Singh
Pesticides widely used in agriculture and households pose environmental risks due to their persistence, toxicity, and bioaccumulative nature. Constructed wetlands (CWs) have emerged as a sustainable solution for removing pesticides from agricultural runoff and wastewater. Their performance depends on factors like plant species, substrate, wastewater composition, climate, and retention time. Key challenges include seasonal performance variability, substrate clogging, and pesticide accumulation in sediments. Full-scale studies show removal rates from 38% to over 99%, influenced by pH, temperature, vegetation, microbial activity, and retention time. Emerging strategies, such as solar photocatalytic oxidation and real-time monitoring, offer promising enhancements to CW functionality, supporting sustainable and environmentally friendly water treatment solutions.
农业和家庭中广泛使用的农药因其持久性、毒性和生物蓄积性而构成环境风险。人工湿地(CWs)已成为去除农业径流和废水中农药的可持续解决方案。它们的性能取决于植物种类、基质、废水成分、气候和滞留时间等因素。主要挑战包括季节性性能变化、基质堵塞和沉积物中的农药积累。全面研究表明,受pH值、温度、植被、微生物活性和滞留时间的影响,去除率从38%到99%以上。新兴战略,如太阳能光催化氧化和实时监测,为连续水处理功能提供了有希望的增强,支持可持续和环保的水处理解决方案。
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引用次数: 0
It's about time: Integrating micro- and macro-evolutionary perspectives into ecotoxicology for improved predictions and long-term assessment of ecosystem health 是时候了:将微观和宏观进化观点整合到生态毒理学中,以改进对生态系统健康的预测和长期评估
IF 6.6 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-12-01 Epub Date: 2025-11-01 DOI: 10.1016/j.coesh.2025.100688
Thomas Sol Dourdin , Cassandre Aimon , Scott McCairns , Marie-Agnès Coutellec
Whilst ecology has served as a foundational inspiration for risk assessment in ecotoxicology, far less attention has been given to evolution, despite its importance. As the need for a new paradigm in ecotoxicology is becoming increasingly evident in the face of Global change, the consideration of evolutionary processes and patterns should provide a way to progress towards this objective. This review draws on the recent literature to support this idea, with a particular attention to the interplay between evolutionary rates. In doing so, we recast ecotoxicology as an innovative, exciting discipline, conceptually equipped to meet the challenges of the Anthropocene era.
虽然生态学已经作为生态毒理学风险评估的基础灵感,但对进化的关注远远不够,尽管它很重要。面对全球变化,对生态毒理学新范式的需求日益明显,对进化过程和模式的考虑应该为实现这一目标提供一种途径。这篇综述借鉴了最近的文献来支持这一观点,特别关注了进化速度之间的相互作用。在这样做的过程中,我们将生态毒理学重塑为一门创新的、令人兴奋的学科,在概念上准备好迎接人类世时代的挑战。
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引用次数: 0
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Current Opinion in Environmental Science and Health
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