Contemporary Drift in Emerging Micro(nano)plastics Removal and Upcycling Technologies from Municipal Wastewater Sludge: Strategic Innovations and Prospects

IF 6.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Current Pollution Reports Pub Date : 2023-05-22 DOI:10.1007/s40726-023-00261-y

Vinay, Deepti Surana, Pooja Ghosh, Manish Kumar, Sunita Varjani, Vivek Kumar, Giorgio Mannina

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引用次数: 3

Abstract

Purpose of Review

Annually, huge amounts of microplastics (MPs) are added to farmlands through sewage sludge (SS)/biosolid applications as a fertilizer. Most research emphasizes the enormity of the problem and demonstrates the fate, impacts, and toxicity of MPs during SS treatment processes and land applications. None has addressed the management strategies. To address the gaps, the current review evaluates the performance analysis of conventional and advanced sludge treatment methods in eliminating MPs from sludge.

Recent Findings

The review uncovers that the occurrence and characteristics of MPs in SS are highly governed by factors such as population density, speed and level of urbanization, citizens’ daily habits, and treatment units in wastewater treatment plants (WWTPs). Furthermore, conventional sludge treatment processes are ineffective in eliminating MPs from SS and are accountable for the increased small-sized MPs or micro(nano)plastics (MNPs) along with altered surface morphology facilitating more co-contaminant adsorption. Simultaneously, MPs can influence the operation of these treatment processes depending on their size, type, shape, and concentration. The review reveals that research to develop advanced technology to remove MPs efficiently from SS is still at a nascent stage.

Summary

This review provides a comprehensive analysis of MPs in the SS, by corroborating state-of-the-knowledge, on different aspects, including the global occurrence of MPs in WWTP sludge, impacts of different conventional sludge treatment processes on MPs and vice versa, and efficiency of advanced sludge treatment and upcycling technologies to eliminate MPs, which will facilitate the development of mitigation measures from the systematic and holistic level.

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新兴微(纳米)塑料去除和城市污水污泥升级回收技术的当代漂移:战略创新和前景

每年，大量的微塑料(MPs)通过污水污泥(SS)/生物固体作为肥料被添加到农田中。大多数研究都强调了问题的严重性，并展示了在SS处理过程和土地应用过程中MPs的命运、影响和毒性。没有人讨论过管理策略。为了解决这些差距，本综述评估了传统和先进污泥处理方法在消除污泥中MPs方面的性能分析。研究发现，人口密度、城市化速度和水平、居民日常生活习惯、污水处理厂(WWTPs)的处理单位等因素高度制约着MPs在SS中的发生和特征。此外，传统的污泥处理工艺在从SS中去除MPs方面是无效的，并且会导致小型MPs或微(纳米)塑料(MNPs)的增加，以及表面形态的改变，从而促进更多的共污染物吸附。同时，MPs可以影响这些处理过程的操作，这取决于它们的大小、类型、形状和浓度。研究表明，开发先进技术以有效地从SS中去除MPs的研究仍处于初级阶段。本综述通过验证现有知识，从不同方面对SS中的MPs进行了全面分析，包括全球污水处理厂污泥中MPs的发生率，不同传统污泥处理工艺对MPs的影响，以及先进污泥处理和升级回收技术消除MPs的效率，这将有助于从系统和整体层面制定缓解措施。图形抽象

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来源期刊

Current Pollution Reports Environmental Science-Water Science and Technology

CiteScore

12.10

自引率

1.40%

发文量

期刊介绍： Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.