Transport and fate of microplastics in constructed wetlands: A microcosm study

Chen, Yuling; Li, Tiancui; Hu, Hongjuan; Ao, Hongyi; Xiong, Xiong; Shi, Huahong; Wu, Chenxi

doi:10.1016/j.jhazmat.2021.125615

Cited by 84 publications

(15 citation statements)

References 38 publications

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“…CWs have been defined as artificial systems for wastewater treatment that incorporate microbes, plants, and water as constituents (Figure 3) (H. Wu et al, 2015). CWs F I G U R E 3 Constructed wetland are effective remediation methods that offer high efficiency and low maintenance requirement (Chen et al, 2021). Classical CWs can be classified as free water surface constructed wetlands (FWSCWs) and subsurface flow constructed wetlands (SSFCWs) depending on the hydrology (H. Wu et al, 2015).…”

Section: Cw-mediated Remediation Of Microplasticsmentioning

confidence: 99%

“…A study reported 100% removal of microplastics (size ranges of 0.5–1 and 2–4 mm) from a horizontal subsurface flow constructed wetland (HSSFCW) and 81.63% removal from a surface flow CW (Chen et al, 2021). A gravel‐filled HSSFCW in a TP in China in which Canna sp.…”

Section: Strategies For Remediation Of Microplasticsmentioning

confidence: 99%

“…Microplastics can serve as a medium for growth and transference of microbes due to their durability and persistence (Auta et al, 2017a). Over the long term, microplastics may result in a loss of biodiversity due to death of aquatic organisms from blockage of windpipes and ingestion pathways (Chen et al, 2021). Evidence of the presence of microplastics in freshwater and marine environment is discussed in the following subsections.…”

Section: Occurrence and Distribution Of Microplastics In Aquatic Envi...mentioning

confidence: 99%

“…Upon ingestion, microplastics may accumulate in the human body and result in inflammation, toxicity, and hemolysis (Hwang et al, 2020). Aquatic organisms in microplastic‐contaminated sites can suffer from toxic effects and blockage of the digestive system, eventually leading to death (Chen et al, 2021; Elgarahy, Akhdhar, & Elwakeel, 2021). In addition, growth of microalgae can be inhibited by microplastics, resulting in deformed cellular structures and contents (Naik et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Global distribution of microplastic contaminants in aquatic environments and their remediation strategies

Tirkey

Pandey

Tiwari

et al. 2022

Water Environment Research

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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.

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Section: Cw-mediated Remediation Of Microplasticsmentioning

confidence: 99%

Section: Strategies For Remediation Of Microplasticsmentioning

confidence: 99%

Section: Occurrence and Distribution Of Microplastics In Aquatic Envi...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Global distribution of microplastic contaminants in aquatic environments and their remediation strategies

Tirkey

Pandey

Tiwari

et al. 2022

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…Additionally, its use in CWs could contribute to the mitigation of pollution generated by this urban solid waste. However, the studies reported in the literature where such residue is used as substrate in CWs are very limited (Saraiva et al 2018;Maroneze et al 2014;Chen et al 2021). Therefore, it is necessary to investigate the possible generation of microplastics and the release of phenols, in the short, medium and long term in HC that use PET as a substrate, to ensure that the use of PET is environmentally safe (or failing that, discard its use).…”

Section: Introductionmentioning

confidence: 99%