Advancements in adsorption and photodegradation technologies for Rhodamine B dye wastewater treatment: fundamentals, applications, and future directions

IF 9.1 Q1 ENGINEERING, CHEMICAL Green Chemical Engineering Pub Date : 2023-12-30 DOI:10.1016/j.gce.2023.12.004
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Abstract

Organic dye pollutants present in wastewater pose a significant global challenge. Among pollutants, the synthetic dye Rhodamine B (RB) stands out due to its non-biodegradable nature and associated neurotoxic, carcinogenic, and respiratory irritant properties. Extensive research has been conducted on the efficacy of adsorption and photodegradation techniques for the removal of RB from wastewater. While adsorption and advanced oxidation processes (AOPs) have gained considerable attention for their effectiveness in recent years, the underlying behaviors and mechanisms of these technologies remain incompletely understood. Therefore, a comprehensive summary of recent research progress in this domain is imperative to clarify the basics and present the up-to-date achievements.

This review provides an in-depth exploration of the fundamentals, advancements, and future trajectories of RB wastewater treatment technologies, mainly encompassing adsorption and photodegradation. This work starts with a general introduction of outlining the sources, toxicity, and diverse applicable removal strategies. Subsequently, it thoroughly examines crucial techniques within non-photochemical, photochemical, and adsorption technologies, such as UV light assisted AOP, catalyst assisted AOP, ozonation, Fenton system, electrochemical AOP, and adsorption technology. The primary objective is to furnish a broad overview of these techniques, elucidating their effectiveness, limitations, and applicability. Following this, the review encapsulates state-of-the-art computational simulations pertaining to RB adsorption and interactions with clays and other adsorbents. Lastly, it delves into column adsorption of RB dye, and elucidates various influencing factors, including bed height, feed concentration, pollutant (RB) feeding or flow rate, and column regeneration. This panoramic review aims to provide valuable insights into suitable techniques, research gaps, and the applicability of non-photochemical, photochemical, and adsorption technologies in the treatment of wastewater containing RB dye.

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用于罗丹明 B 染料废水处理的吸附和光降解技术的进展:基本原理、应用和未来方向
废水中的有机染料污染物是一项重大的全球性挑战。在各种污染物中,合成染料罗丹明 B(RB)因其不可生物降解性以及相关的神经毒性、致癌性和呼吸道刺激性而脱颖而出。人们对吸附和光降解技术去除废水中罗丹明 B 的功效进行了广泛的研究。虽然近年来吸附和高级氧化工艺(AOPs)因其有效性而备受关注,但人们对这些技术的基本行为和机理仍不甚了解。本综述深入探讨了主要包括吸附和光降解技术在内的 RB 废水处理技术的基本原理、进展和未来轨迹。本研究首先概述了废水的来源、毒性和各种适用的去除策略。随后,它深入研究了非光化学、光化学和吸附技术中的关键技术,如紫外光辅助 AOP、催化剂辅助 AOP、臭氧处理、芬顿系统、电化学 AOP 和吸附技术。主要目的是概述这些技术,阐明其有效性、局限性和适用性。随后,本综述囊括了有关 RB 吸附以及与粘土和其他吸附剂相互作用的最新计算模拟。最后,它深入探讨了 RB 染料的柱吸附,并阐明了各种影响因素,包括床层高度、进料浓度、污染物(RB)进料或流速以及柱再生。本综述旨在就处理含 RB 染料废水的适用技术、研究空白以及非光化学、光化学和吸附技术的适用性提供有价值的见解。
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来源期刊
Green Chemical Engineering
Green Chemical Engineering Process Chemistry and Technology, Catalysis, Filtration and Separation
CiteScore
11.60
自引率
0.00%
发文量
58
审稿时长
51 days
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