Global distribution of microplastic contaminants in aquatic environments and their remediation strategies. (20th December 2022)

• Record Type: Journal Article
• Authors: Tirkey, Astha; Pandey, Mohineeta; Tiwari, Ankesh; Sahu, Roshan Lal; Kukkar, Deepak; Dubey, Rashmi; Kim, Ki‐Hyun; Pandey, Sudhir Kumar
• Is Part Of: Water environment research. Volume 94:Number 12(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-12-20
• Subjects: freshwater -- marine -- microplastics -- occurrence -- remediation -- tertiary treatment; Water quality management -- Periodicals; Water -- Purification -- Periodicals; Water -- Pollution -- Periodicals; Water -- Pollution; Water -- Purification; Water quality management; Sewage; Water Pollution; Periodicals; Electronic journals; Periodicals; 628.16
• DOI: 10.1002/wer.10819
• Languages: English
• ISSNs: 1061-4303

Abstract

Abstract: This review describes the occurrence and distribution of microplastics in freshwater and marine environments in recent years (2017–2022). Use of microplastics often results in contamination of aquatic environments, threatens biodiversity, and creates the need for environmental remediation. Such remediation strategies can involve primary, secondary, and tertiary treatments. Tertiary treatment is a frequent research subject due to its high efficiency and the possibility for advancements and enhancements. This study discusses tertiary treatments with remediation efficiencies of 95% and greater and their advantages, disadvantages, and future perspectives. Biochar‐mediated remediation of microplastics is an effective method that may be able to achieve efficiencies approaching 100%. The study concludes by exploring methods of removing microplastics, including constructed wetlands and biochar, which offer high efficiency. Practitioner Points: Tertiary treatments are an effective microplastic remediation strategy applicable succeeding secondary or primary treatments or as an individual remediation strategy. Biochar is a highly efficient adsorbent for microplastic remediation from aquatic environment with eco‐friendly aspect and reusability. Modifications in tertiary treatments and enhancement in remediation efficiency are still a subject of research for future studies. Abstract : The graphical abstract highlights the sources and the treatment strategies utilized for microplastic remediation. The remediation strategies include primary, secondary, and tertiary treatments as major categories of treatments. The tertiary treatments include constructed wetlands, disc filters, rapid sand filters, dissolved air flotation, and biochar‐mediated remediation.