Journal of Environmental Chemical Engineering最新文献_第5页

Advances in oil sludge separation technology and mechanism at normal temperature: A review 常温下油泥分离技术和机理的进展：综述

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-10-05 DOI: 10.1016/j.jece.2024.114329

Yuntao Kang , Hongxiang Xu , Yijun Cao , Jingzheng Wang , Jiahua Cui , Xin Sun

The rapid increase in the global economy and expansion of industry has contributed to the rapid depletion of conventional resources. Oily sludge is a hazardous waste inevitably generated during oil extraction and oil refining. The efficient separation and recycling of its petroleum hydrocarbons has been an important challenge for the petrochemical industry. Despite the rapid advancement of oil sludge normal temperature separation technology, with the popularity of polymer-driven oil and tertiary oil recovery methods, the nature of oil sludge varies and emulsion complexity increases, necessitating urgent investigations into the intrinsic difficulties, process enhancements, and future directions of oil sludge normal temperature separation. The causes of sludge separation challenges including the macroscopic components of the sludge and microscopic interfacial interactions during treatment are systematically summarized. And the main oil sludge separation processes, mechanisms and application scenarios at normal temperature are systematically described in this work. Aiming at the problems of low index of single pathway, high solid content in recovered oil and cumbersome compounding process in oil sludge separation, a few new technologies of oil sludge at normal temperature are proposed, including biosurfactant treatment of oil sludge, environmentally responsive ionic liquid microemulsion treatment of oil sludge, environmentally responsive emulsion treatment of oil sludge, and environmentally responsive magnetic nanoparticle solution disposal of oil sludge. It also suggests new approaches to the oil sludge disposal process, such as targeted regulation of the oil sludge emulsion interface, combined process design of environmentally responsive agents, elaboration of the integrated mechanism of action of oil sludge emulsification and demulsification, and standardization of the oil sludge separation assessment system. The resolution of the above fundamental scientific and technological problems will provide a strong guarantee for the reduction of environmental pollution and the promotion of high-quality development of the petrochemical industry.

全球经济的快速增长和工业的扩张导致常规资源迅速枯竭。含油污泥是石油开采和炼油过程中不可避免产生的危险废物。如何有效分离和回收其中的石油碳氢化合物一直是石化行业面临的重要挑战。随着聚合物驱油和三次采油方法的普及，油泥常温分离技术取得了突飞猛进的发展，但油泥的性质各不相同，乳化液的复杂性也随之增加，因此迫切需要研究油泥常温分离的内在困难、工艺改进和未来发展方向。本文系统总结了油泥分离难题的成因，包括油泥的宏观成分和处理过程中的微观界面相互作用。系统阐述了油泥常温分离的主要工艺、机理和应用场景。针对油泥分离中存在的单一途径指标低、回收油固含量高、复合工艺繁琐等问题，提出了常温下油泥处理的几种新技术，包括生物表面活性剂处理油泥、环境响应型离子液体微乳液处理油泥、环境响应型乳液处理油泥、环境响应型磁性纳米粒子溶液处理油泥等。同时，还提出了油泥处置工艺的新方法，如油泥乳化界面的定向调控、环境响应剂的组合工艺设计、油泥乳化和破乳化综合作用机理的阐述、油泥分离评估体系的标准化等。上述基础性科技问题的解决，将为减少环境污染、促进石化工业高质量发展提供有力保障。

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引用次数: 0

Photocatalytic Cr(VI) reduction by metal-free photocatalysts under visible-light irradiation 无金属光催化剂在可见光照射下光催化还原 Cr(VI)

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-10-04 DOI: 10.1016/j.jece.2024.114306

Xiahong Xu , Yan Sui , Wentong Chen , Xiaodan Li , Wei Huang , Lanxin Chai , Yuntong Li , Hong Zhong

The photocatalytic reduction of hazardous Cr(VI) to nontoxic Cr(III) by metal free catalytic system under visible light irradiation is a promising approach to suppress Cr(VI) pollution, while the efficiency is inevitably tied to the performance of catalytic system. Metal-free materials with semiconductor properties have aroused wide concern for solar driven Cr(VI) reduction because of their satisfactory visible-light harvesting, diverse synthetic approaches and ready functionality. These distinctive features have attracted ever-increasing attention, prompting the rapid development of a variety of metal-free-based photocatalysts with interesting structures and properties, but there is an urgent need to summarize the research status and in-depth insights the intrinsic structure-activity relationship of photocatalytic Cr(VI) reduction. This review mainly focused on the state-of-the-art development process of metal-free-based photocatalyst for photocatalytic Cr(VI) reduction under visible light irradiation. The representative research work of photocatalytic Cr(VI) reduction by various metal-free-based photocatalytic systems, containing graphite carbon nitride (g-C₃N₄), covalent organic frameworks (COFs), covalent triazine frameworks (CTFs) and conjugated microporous polymers (CMPs) was also highlighted. The strategies to optimize the structures and properties of metal-free-based photocatalysts at the molecular level have been presented for enhancing the photocatalytic performance, and 100 % Cr(VI) reduction was observed under visible light irradiation. The reaction mechanism has also been discussed, which is conducive to gaining valuable insights of specific solar energy utilization in Cr(VI) reduction. Furthermore, the summarization and generalization of structure-activity relationship offer guidance for the design and synthesis of metal-free-based photocatalytic systems.

在可见光照射下，无金属催化体系通过光催化将有害的六（Cr）还原为无毒的三（Cr），是抑制六（Cr）污染的一种很有前景的方法，但其效率不可避免地与催化体系的性能息息相关。具有半导体特性的无金属材料因其令人满意的可见光收集能力、多样化的合成方法和随时可用的功能性，在太阳能驱动的六价铬还原方面引起了广泛关注。这些鲜明的特点吸引了越来越多的关注，促使各种具有有趣结构和性能的无金属基光催化剂迅速发展，但迫切需要总结研究现状，深入了解光催化还原 Cr(VI) 的内在结构-活性关系。本综述主要关注在可见光照射下光催化还原 Cr(VI) 的无金属基光催化剂的最新发展进程。此外，还重点介绍了各种不含金属的光催化体系光催化还原六价铬的代表性研究工作，包括氮化石墨（g-C3N4）、共价有机框架（COFs）、共价三嗪框架（CTFs）和共轭微孔聚合物（CMPs）。还介绍了在分子水平上优化无金属基光催化剂结构和性能的策略，以提高其光催化性能，并观察到在可见光照射下，Cr(VI) 的还原率达到 100%。此外，还讨论了反应机理，这有助于深入了解特定太阳能在还原 Cr(VI) 过程中的应用。此外，对结构-活性关系的总结和归纳为无金属光催化体系的设计和合成提供了指导。

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引用次数: 0

A comprehensive review on treatment and recovery of rare earth elements from wastewater: Current knowledge and future perspectives 从废水中处理和回收稀土元素的综合综述：当前知识和未来展望

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-10-03 DOI: 10.1016/j.jece.2024.114348

Zhonghong Li , Yibo Zhu , Jiaqi Yao

As the significance of rare earth elements (REEs) as a strategic resource in the industrial economy and the scarcity of the resource itself gain prominence worldwide, technologies for capturing and recovering REEs from wastewater are crucial for a sustainable future. To gain a comprehensive insight into research focuses and emerging trends related to the recovery of REEs from wastewater, the Web of Science Core Collection (WOSCC) database was used for the literature search. Bibliometrix, VOSviewer, and CiteSpace software were employed for bibliometric analysis of research literature published between 2000 and 2023, investigating aspects such as the prominent contributing countries/regions, prolific authors, source journals, and major research institutions. The results revealed a steady increase in research pertaining to the recovery of REEs from wastewater during the studied period. China, India, and the USA were identified as leading contributors, with the Chinese Acad Sci being recognized as the most productive institution. Based on the co-occurrence and burst analysis of keywords, it was found that the adsorption and solvent extraction of REEs from wastewater currently dominate current research, with the development of emerging technologies such as the electrochemical method and biological extraction method representing potential future hotspots. Additionally, emerging types of highly selective and high-capacity adsorbents for REEs are anticipated to become a prominent area of interest. This paper provided a comprehensive overview of the current state of the recovery of REEs from wastewater and forecasts future trends, offering a valuable reference for understanding the evolving dynamics in this field.

稀土元素 (REE) 作为工业经济中的一种战略资源，其重要性和资源本身的稀缺性在全球范围内日益凸显，因此从废水中捕捉和回收稀土元素的技术对于可持续发展的未来至关重要。为了全面了解与从废水中回收 REEs 相关的研究重点和新趋势，我们使用了科学网核心收藏（WOSCC）数据库进行文献检索。采用 Bibliometrix、VOSviewer 和 CiteSpace 软件对 2000 年至 2023 年间发表的研究文献进行文献计量分析，调查主要贡献国家/地区、多产作者、来源期刊和主要研究机构等方面。结果显示，在研究期间，有关从废水中回收 REEs 的研究稳步增长。中国、印度和美国被确定为主要贡献者，其中中国科学院被公认为成果最多的机构。根据关键词的共现和突发性分析发现，目前从废水中吸附和溶剂萃取 REEs 的研究占主导地位，而电化学方法和生物萃取方法等新兴技术的发展则是未来的潜在热点。此外，新兴的高选择性和高容量 REEs 吸附剂类型预计也将成为一个突出的研究领域。本文全面概述了从废水中回收 REEs 的现状，并预测了未来趋势，为了解该领域不断发展的动态提供了宝贵的参考。

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引用次数: 0

A critical review of different types of biochar-based catalysts and mechanisms in advanced oxidation processes for organic contaminants removal 对不同类型的生物炭催化剂及其在去除有机污染物的高级氧化过程中的作用机制的重要评述

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-10-02 DOI: 10.1016/j.jece.2024.114262

Zijun Zeng , Anthony Umeh , Gopalan Anantha Iyengar , Fangjie Qi , Ravi Naidu

Biochar (BC)-assisted advanced oxidation processes (AOPs) offer an unprecedented opportunity for organic contaminant remediation because of their high efficiency and environmental friendliness. However, the catalytic mechanisms for different BC-assisted AOPs need to be further explored, considering that each type of BC catalyst possesses unique active sites and physicochemical properties, which influence associated catalytic mechanisms. Most existing reviews have focused on individual types of BC or AOPs, especially in relevance to mechanism. Furthermore, there is a lack of detailed understanding of the catalytic mechanisms derived from the various active sites in BC catalysts which restrict the ease of evolving design strategy for ideal catalytic structures. Therefore, this review evaluates and presents the current knowledge on the relevant active sites of BC-based catalysts, feasibility for generation of reactive oxygen species, and the associated catalytic mechanisms involved in AOPs for the four most known types of BC, which are pristine BC (P-BC), non-metallic heteroatom-doped BC (NM-BC), metal BC composite (M-BC), and metal and heteroatom co-doped BC (MHC-BC) catalysts. The factors influencing the catalytic properties of BC materials are systematically discussed, while highlighting the relationships with associated mechanisms and synthetic conditions. Finally, the current challenges and prospects associated with BC-AOPs are outlined. Overall, this review aims to inspire the rational design of more advanced BC-based catalysts for AOPs in the remediation of organic contaminants in the environment.

生物炭（BC）辅助高级氧化工艺（AOPs）因其高效性和环境友好性，为有机污染物修复提供了前所未有的机会。然而，考虑到每种生物炭催化剂都具有独特的活性位点和理化性质，这些都会影响相关的催化机理，因此需要进一步探索不同生物炭辅助高级氧化工艺的催化机理。现有的大多数综述都集中在个别类型的萃取剂或 AOPs 上，尤其是在机制方面。此外，人们对萃取催化剂中各种活性位点的催化机理缺乏详细了解，这限制了理想催化结构设计策略的发展。因此，本综述评估并介绍了目前对基于萃取催化剂的相关活性位点、活性氧生成的可行性以及 AOPs 中涉及的相关催化机理的了解，这四种已知类型的萃取催化剂分别是原始萃取 (P-BC)、掺杂非金属杂原子的萃取 (NM-BC)、金属萃取复合 (M-BC) 以及掺杂金属和杂原子的萃取 (MHC-BC) 催化剂。系统地讨论了影响 BC 材料催化特性的因素，同时强调了与相关机理和合成条件的关系。最后，概述了与 BC-AOPs 相关的当前挑战和前景。总之，本综述旨在启发人们合理设计更先进的基于萃取物的 AOP 催化剂，用于修复环境中的有机污染物。

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引用次数: 0

Acyl thiourea derivatives: Versatile tools for chemosensing and heavy metal remediation 酰基硫脲衍生物：化学传感和重金属修复的多功能工具

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-10-02 DOI: 10.1016/j.jece.2024.114279

Ozge Selcuk , Nangyallai Azizi , Mohammad Tahir Aminzai , Zeynel Seferoglu , Mauricio Federico Erben , Yahya Nural

The increasing environmental pollution, particularly from heavy metals and hazardous anions, poses a significant threat to global health and ecosystems. The unique structural features of these compounds, including multiple coordination sites, enhanced electron density, favorable steric effects, and stabilized metal-ligand complexes, enable their effective application in both chemosensing and heavy metal remediation. As chemosensors, acyl thiourea derivatives exhibit high sensitivity and selectivity in detecting various cations, anions, and neutral species, making them valuable tools for in situ environmental analysis. Additionally, their ability to efficiently adsorb heavy metals like Cu²⁺, Hg²⁺, Cd²⁺, U⁴⁺, Pb²⁺, Pt⁴⁺, and Pd²⁺, along with the removal of Cl⁻ from acidic wastewater, demonstrates their practical significance in combating heavy metal pollution. This study highlights the innovative use of acyl thiourea derivatives as versatile tools for addressing the critical issue of environmental pollution, contributing to the advancement of environmental science and technology by offering effective methods for the detection and remediation of environmental pollutants using acyl thioureas.

日益严重的环境污染，尤其是重金属和有害阴离子的污染，对全球健康和生态系统构成了重大威胁。这些化合物具有独特的结构特征，包括多个配位位点、增强的电子密度、有利的立体效应以及稳定的金属配体复合物，因此能够有效地应用于化学传感和重金属修复领域。作为化学传感器，酰基硫脲衍生物在检测各种阳离子、阴离子和中性物质时表现出高灵敏度和高选择性，使其成为现场环境分析的重要工具。此外，它们还能有效吸附 Cu2+、Hg2+、Cd2+、U4+、Pb2+、Pt4+ 和 Pd2+ 等重金属，并能去除酸性废水中的 Cl-，这表明它们在治理重金属污染方面具有重要的实际意义。这项研究强调了酰基硫脲衍生物作为解决环境污染这一关键问题的多功能工具的创新用途，通过提供利用酰基硫脲检测和修复环境污染物的有效方法，促进了环境科学和技术的进步。

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引用次数: 0

Understanding urea polymorphism and cocrystallization to develop enhanced fertilizers: A review 了解尿素的多态性和共晶化，以开发强化肥料：综述

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-09-30 DOI: 10.1016/j.jece.2024.114308

Vidya Nagaraju , Camila Jange , Carl Wassgren , Kingsly Ambrose

Polymorphism and cocrystallization are two crucial processes in the development of new urea compounds. These processes primarily involve intermolecular interactions and the molecular arrangement within urea. Understanding polymorphism facilitates modification of the physical and chemical properties of urea compounds. Polymorphism refers to a compound's ability to exist in different forms or crystal structures. Urea exhibits five distinct polymorphic forms under specific temperature and pressure conditions and extensive research has been conducted on the unit cell parameters of different phases of urea. In the realm of urea cocrystal development, polymorphism plays a significant role. Urea cocrystals typically consist of urea molecules and one or more additional molecules, strategically chosen to modify urea's properties for broader applications. The preparation of cocrystals involves mixing pure urea with the chosen coformer under controlled atmospheric conditions. Cocrystal formation can be enhanced through the application of mechanical forces to the reactants, elevated temperatures, and specific relative humidities. The field of cocrystallization provides a powerful toolkit for crafting desirable urea compounds, making them well-suited for applications in agriculture and other industries. In pharmaceuticals, cocrystals with urea allow for the design of more effective and easily administered medications which can enhance drug delivery and absorption. In agriculture, urea cocrystals can optimize the release of nitrogen from urea fertilizers, improving nutrient uptake by plants, and reducing environmental impact. In addition, cocrystals often utilize industrial byproducts or waste materials as coformers to modify the properties of urea. Furthermore, preparing urea cocrystals using solvent-free mechanochemistry eliminates the need for solution handling and evaporation, promoting an environmentally sustainable process.

多态性和共晶化是开发新尿素化合物的两个关键过程。这些过程主要涉及分子间的相互作用和尿素内部的分子排列。了解多态性有助于改变尿素化合物的物理和化学特性。多态性是指化合物以不同形式或晶体结构存在的能力。在特定的温度和压力条件下，尿素呈现出五种不同的多晶形态，人们对尿素不同相的单胞参数进行了广泛的研究。在尿素共晶体的开发领域，多晶型起着重要作用。尿素共晶体通常由尿素分子和一个或多个附加分子组成，这些分子经过战略性选择，可以改变尿素的特性，从而实现更广泛的应用。共晶体的制备包括在受控大气条件下将纯尿素与所选的共聚物混合。通过对反应物施加机械力、升高温度和特定的相对湿度，可促进共晶体的形成。共晶体领域为制造理想的尿素化合物提供了一个强大的工具包，使其非常适合应用于农业和其他行业。在制药领域，利用尿素共晶体可以设计出更有效、更易于服用的药物，从而促进药物的输送和吸收。在农业方面，尿素共晶体可以优化尿素肥料中氮的释放，提高植物对养分的吸收，减少对环境的影响。此外，球晶通常利用工业副产品或废料作为共聚物来改变尿素的性质。此外，使用无溶剂机械化学法制备尿素茧晶无需处理溶液和蒸发，促进了环境可持续发展过程。

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引用次数: 0

Advances in the application of graphene oxide composite loose nanofiltration membranes for dye and salt separation 氧化石墨烯复合松散纳滤膜在染料和盐分离方面的应用进展

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-09-30 DOI: 10.1016/j.jece.2024.114278

Peng Kong , Zeshan Sun , He Gui , Zhiyuan Chen , Yu Song , Yao Wang , Yanxin Wang , Matt J. Kipper , Jianguo Tang , Linjun Huang

The wide application of loose nanofiltration (LNF) membranes in textile wastewater treatment has demonstrated the advantages of efficient separation of dyes and salts. Among them, the composite loose nanofiltration membranes prepared using graphene oxide (GO) showed more efficient dye retention and salt permeability due to its broad specific surface area and abundant oxygenated surface functional groups. In this paper, the four aspects of preparation method, separation mechanism, separation performance and application are described. In terms of preparation methods, this paper focuses on two main methods, phase transformation and interfacial polymerization. In addition, other preparation methods such as mussel-inspired deposition, co-deposition and self-assembly are also discussed. In terms of the separation mechanism, spatial repulsion and electrostatic effect are analyzed as the main mechanisms for the separation of dyes and salts by loose nanofiltration membranes. Moreover, this paper emphasizes the excellent contamination resistance, antimicrobial properties and long-term stability of GO composite loose nanofiltration membranes. In response to these properties, the advantages of the membrane in terms of separation performance are analyzed. Finally, this paper also presents the possible future challenges that loose nanofiltration membranes may face in a wide range of applications.

松散纳滤膜（LNF）在纺织废水处理中的广泛应用证明了其高效分离染料和盐分的优势。其中，利用氧化石墨烯（GO）制备的复合松散纳滤膜因其宽广的比表面积和丰富的含氧表面官能团，显示出更高效的染料截留性和盐分渗透性。本文从制备方法、分离机理、分离性能和应用四个方面进行了阐述。在制备方法方面，本文主要介绍了相变和界面聚合两种方法。此外，还讨论了贻贝启发沉积、共沉积和自组装等其他制备方法。在分离机理方面，分析了空间斥力和静电效应是松散纳滤膜分离染料和盐类的主要机理。此外，本文还强调了 GO 复合松散纳滤膜优异的抗污染性、抗菌性和长期稳定性。针对这些特性，本文分析了该膜在分离性能方面的优势。最后，本文还介绍了松散纳滤膜未来在广泛应用中可能面临的挑战。

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引用次数: 0

A critical review on ultrasound-assisted adsorption and desorption technology: Mechanisms, influencing factors, applications, and prospects 超声辅助吸附和解吸技术综述：机理、影响因素、应用和前景

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-09-30 DOI: 10.1016/j.jece.2024.114307

Duofei Hu , Shiqi Liu , Liang Qi , Jinsong Liang , Guangming Zhang

Environmental and resource issues are major challenges currently facing humanity. The cost-effective management of pollution and the recycling of resources have long been hot topics. Adsorption and desorption technologies, as mature and commercialized methods, have been widely applied on a large scale, and their mechanisms have been thoroughly investigated. Meanwhile, based on the unique properties of ultrasound, ultrasound technology, widely used in pharmaceuticals and materials synthesis, has shown exceptional mass transfer capabilities in adsorption and desorption, thereby greatly enhancing the performance of these two technologies. However, the mechanisms related to the combination of ultrasound with adsorption and desorption technology have not yet been thoroughly summarized. Therefore, the key aims of this review are to (a) explain the intrinsic mechanisms of ultrasound-assisted adsorption and desorption systems, (b) discuss the factors affecting adsorption and desorption systems, (c) provide examples of the application of ultrasound in adsorption and desorption, and (d) offer our perspectives to promote the development of technologies in the fields of adsorption and desorption, ultimately achieving efficient resource recycling. Finally, ultrasound can significantly reduce the time required to reach adsorption equilibrium and increase adsorption capacity by accelerating mass transfer and modifying adsorbents. In the field of desorption, ultrasound, through its intense sonochemical effects, can accelerate desorption processes, enhance the recovery rate of valuable elements, and improve the removal of pollutants.

环境和资源问题是人类当前面临的主要挑战。如何经济有效地治理污染和循环利用资源一直是热门话题。吸附和解吸技术作为成熟的商业化方法，已经得到了大规模的广泛应用，其机理也得到了深入研究。同时，基于超声波的独特性质，超声波技术被广泛应用于制药和材料合成领域，在吸附和解吸过程中表现出非凡的传质能力，从而大大提高了这两种技术的性能。然而，有关超声波与吸附和解吸技术结合的机理尚未得到深入总结。因此，本综述的主要目的是：(a) 解释超声波辅助吸附和解吸系统的内在机理；(b) 讨论影响吸附和解吸系统的因素；(c) 提供超声波在吸附和解吸中的应用实例；(d) 展望促进吸附和解吸领域技术的发展，最终实现高效的资源循环利用。最后，超声波可以大大缩短达到吸附平衡所需的时间，并通过加速传质和改变吸附剂来提高吸附能力。在解吸领域，超声波通过其强烈的声化学效应，可以加速解吸过程，提高有价元素的回收率，改善污染物的去除效果。

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引用次数: 0

Boosting advanced oxidation processes by biochar-based catalysts to mitigate pesticides and their metabolites in water treatment: A meta-analysis 利用基于生物炭的催化剂促进高级氧化过程，以减轻水处理中的农药及其代谢物：荟萃分析

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-09-28 DOI: 10.1016/j.jece.2024.114260

Jelena Molnar Jazić , Arthur Gross , Bruno Glaser , Jasmina Agbaba , Tajana Simetić , Jasmina Nikić , Snežana Maletić

In order to boost the performance of water treatment in removing organic micropollutants, biochar as an environmental-friendly and sustainable carbonaceous material has been increasingly utilized as a catalyst in advanced oxidation processes (AOP). The main idea behind this research was to unlock the potential of biochar-based catalysts as (i) persulfates and periodate activators and (ii) photocatalyst for mitigating pesticide and intermediate compounds in water treatment. The conducted meta-analysis provides for the first time objective and quantitative overview of the current state of research on biochar-based catalysts application in AOP, surpassing the limitations of conventional qualitative reviews. This paper systematically evaluates the influence of different factors on the weighted degradation efficacy (WDE) achieved by both studied groups of AOP, based on the data extracted from 38 studies conducted in the period 2016–2023. The most of meta-analyzed studies (74 %) were published during 2021–2023 covering EU Water Framework Directive priority substances and emerging contaminants. The meta-analysis revealed the high heterogeneity within the results of certain groups (p=0.05), indicating the statistically significant influence of the biochar-based catalyst properties, target compound characteristics, pH and water matrix on WDE. The most effective pesticides/intermediate compounds degradation enabled systems containing metal and heteroatom co-doped biochar (e.g. FeS@BC/PMS, S-nZVI@BC/PS) or multicomponent heterojunction (95–99 % WDE with 95 % confidence interval), and decreased under alkaline conditions and in wastewater. The outstanding catalytic performance of biochar application has been confirmed within the pH 5–8 range, demonstrating significant potential in AOP water treatment.

为了提高水处理在去除有机微污染物方面的性能，生物炭作为一种环保和可持续的碳质材料，已越来越多地被用作高级氧化工艺（AOP）中的催化剂。本研究的主要思路是发掘生物炭催化剂作为（i）过硫酸盐和过碘酸盐活化剂和（ii）光催化剂的潜力，以减少水处理中的农药和中间体化合物。荟萃分析首次对生物炭催化剂在 AOP 中的应用研究现状进行了客观、定量的概述，超越了传统定性综述的局限性。本文基于 2016-2023 年间进行的 38 项研究中提取的数据，系统地评估了不同因素对两组 AOP 所实现的加权降解功效（WDE）的影响。大部分荟萃分析研究（74%）发表于 2021-2023 年，涉及欧盟《水框架指令》的优先物质和新出现的污染物。荟萃分析表明，某些组别的结果具有高度异质性（P=0.05），表明生物炭催化剂特性、目标化合物特征、pH 值和水基对 WDE 有显著的统计学影响。含有金属和杂原子共掺杂生物炭（如 FeS@BC/PMS、S-nZVI@BC/PS）或多组分异质结合的系统能最有效地降解农药/中间体化合物（95-99% WDE，置信区间为 95%），在碱性条件下和废水中的降解效果有所下降。在 pH 值为 5-8 的范围内，生物炭应用的出色催化性能已得到证实，这表明生物炭在 AOP 水处理方面具有巨大潜力。

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引用次数: 0

Advanced biochar-based materials for specific antibiotics removal from hospital wastewater via adsorption and oxidative degradation 通过吸附和氧化降解去除医院废水中特定抗生素的先进生物炭材料

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering

Pub Date : 2024-09-27 DOI: 10.1016/j.jece.2024.114275

Haotian Xue , Lijuan Deng , Dejun Kang , Ying Zhao , Xinbo Zhang , Ying Liu , Hanyang Chen , Huu Hao Ngo , Wenshan Guo

Antibiotics in hospital wastewater has become a critical issue due to their potential risks to human health and ecosystems. Biochar as a cost-effective and environmental-friendly carbon material has been employed for removing antibiotics. This article gives a holistic view of the properties of advanced biochar-based materials and clarifies mechanisms on removal of specific antibiotics from hospital wastewater. The increased pyrolysis temperature prepares the modified biochar with higher porosity and larger specific surface for enhancing adsorption. The metal-modified biochar possesses abundant functional groups, limits the leaching of metal ions, and increases the conductivity for improving activation of advanced oxidation process (AOP). Adsorption is significantly affected by the pyrolysis temperature, solution pH, and properties of modified biochar and antibiotics. The metal-modified biochar-assisted AOP can effectively degrade the pollutants via generating more reactive oxygen species. Weak acidic and/or weak alkaline condition promotes the degradation process in persulfate and peroxymonosulfate systems or during electrochemical oxidation process. Antibiotics removal at a wide pH range (3−11) can be achieved using Fenton-like and photo-Fenton systems with the presence of metal-modified biochar. Future research should focus on development of novel biochar with high reusability and great capability in removing a broad range of specific antibiotics.

医院废水中的抗生素对人类健康和生态系统具有潜在风险，因此已成为一个重要问题。生物炭作为一种具有成本效益且环保的碳材料，已被用于去除抗生素。本文全面介绍了先进生物炭基材料的特性，并阐明了去除医院废水中特定抗生素的机理。提高热解温度可使改性生物炭具有更高的孔隙率和更大的比表面，从而增强吸附性。金属改性生物炭具有丰富的官能团，限制了金属离子的浸出，并增加了电导率，从而改善了高级氧化过程（AOP）的活化。热解温度、溶液 pH 值以及改性生物炭和抗生素的特性对吸附有很大影响。金属改性生物炭辅助的 AOP 可通过产生更多活性氧来有效降解污染物。弱酸性和/或弱碱性条件可促进过硫酸盐和过一硫酸盐体系或电化学氧化过程中的降解过程。在广泛的 pH 值范围（3-11）内，使用类 Fenton 和光 Fenton 系统以及金属改性生物炭可以实现抗生素的去除。未来的研究重点应放在开发具有高重复利用率和去除多种特定抗生素能力的新型生物炭上。

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