Detection to Remediation: Strategies for Managing Microplastic Pollution in Freshwater Systems
DOI:
https://doi.org/10.22399/ijcesen.3452Keywords:
Micro plastic pollution, Freshwater systems, Detection techniques, Treatment technologies, Regulatory frameworksAbstract
Micro plastic pollution is currently a serious challenge to freshwater ecosystems and a strategy is required to ensure detection, control and alleviation. Micro plastics are defined as plastic pieces measuring less than 5mm in diameter and can be broken down in to primary sources of micro plastic, which include the synthetic fibres of fabrics used in clothing, and secondary sources, which include the worn out pieces of plastics. They are common in waste water, industrial effluents and agricultural run offs and they are long-lived in the rivers, lakes and reservoirs, serving as carriers of harmful contaminants and also upsetting the aquatic food chains. They are ingested by organisms at the zooplankton level to the fish, which causes them to bio accumulate, decrease biodiversity, and create a possible risk of health problems to humans via water consumption and seafood intake. These risks are further increased by Nano plastics, which are even smaller in size and dance through the lines of biological barriers. Detection Methods, such types include spectroscopy, microscopy, and imaging using machine learning, which are improved but have approximating protocols and issues in determining the Nano plastics. Technology options that treat pollution include membrane filtration, advanced oxidation processes, and biodegradation but are overly selective in their efficiency, subject to scalability, processing costs, and removal of neoplastic. Micro plastics are mostly eliminated through wastewater treatment facilities, but the sludge and fragmentation are still a question. The constructed wetlands are sustainable in terms of filtration although they are likely to turn into reservoirs of pollutants. The policy frameworks, including those of the U.S., the EU and the UNEP are divided and lack special indicators regarding secondary micro plastics and do not have international commitments. The paper is a review of state-of-the-art strategies that are summarized with an emphasis on technological, logistical, and regulatory barriers. In the future, the focus should be on standardized detection, scalable interventions, and complete impact assessment, and strong policies should minimize the introduction of micro plastics and facilitate the protection of freshwater systems both ecologically and in the area of human health.
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