Environmental Threats of Microplastics: A Critical Assessment in the Ghanaian Context

Published: Jan. 1, 2023

This review paper critically assesses the emerging environmental threats of microplastics in Ghanaian context. The findings highlight limited understanding extent and distribution microplastic pollution across different compartments, with a primary focus on marine environment neglect freshwater habitats terrestrial environments. Ghana National Plastics Action Partnership (NPAP) aims to address plastic through waste reduction promoting circular economy, although several research gaps persist. Standardized detection methods, comprehensive identification sources pathways, health ecological impacts, effective remediation strategies, assessment public awareness policy interventions are needed. Additionally, quantification techniques for reviewed, highlighting complexity limitations context due infrastructure, resources, expertise constraints. impacts humans animals outlined, including their potential act as carriers toxic chemicals presence food chain. Potential strategies such advanced filtration techniques, nanotechnology-based systems, bioremediation using microorganisms discussed, alongside challenges considerations. Tailored proposed, awareness, education, enhanced management, wastewater treatment, beach river cleanups, innovation, regulations.

Language: Английский

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Biodegradation of polyethylene (PE), polypropylene (PP), and polystyrene (PS) microplastics by floc-forming bacteria, Bacillus cereus strain SHBF2 isolated from a commercial aquafarm

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 10, 2024

The ubiquitous proximity of the commonly used microplastic (MP) particles particularly polyethylene (PE), polypropylene (PP), and polystyrene (PS) poses a serious threat to environment, human health globally. Biological treatment as an environment-friendly approach counter MPs pollution has recent interest when bio-agent beneficial functions in their ecosystem. This study aimed utilize floc-forming bacteria B. cereus SHBF2 isolated from aquaculture farm reducing (PE, PP, PS) environment. were inoculated for 60 days media containing sole carbon source. On different incubation (DOI), bacterial growth analysis was monitored harvested examine weight loss, surface changes, alterations chemical properties. After DOI, highest loss recorded PE, 6.87 ± 0.92%, which further evaluated daily reduction rate (k), 0.00118 gday^{− 1}, half-life (t_1/2), 605.08 138.52 days. OD value (1.74 0.008 Abs.) indicated higher efficiency PP utilization, so colony formation per define volume (1.04 × 10¹¹ CFU/mL). Biofilm formation, erosions, cracks, fragments evident during observation tested using scanning electron microscope (SEM). carbonyl alcohol group due oxidation hydrolysis by strain confirmed Fourier transform infrared spectroscopic (FTIR) analysis. Additionally, pH CO₂ evolution each type ensures activity mineralization particles. findings this have degree biodegradation all selected SHBF2, aquaculture, demonstrated great potential use efficient degrading bacterium biofloc farming system near future guarantee sustainable green production.

Language: Английский

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Photo/Hydro/Thermal Degradation of Macro-plastics into Micro- and Nano-forms

Published: Jan. 1, 2024

Plastics have become an essential aspect of our modern culture, giving several benefits due to their adaptability and durability. However, given tenacity accumulation in ecosystems, they caused serious environmental consequences. In recent years, there has been increase interest the breakdown macro-plastics into micro- nano-forms, which is triggered by numerous elements such as light, water, heat. For evaluation long-term effects plastic pollution on it comprehend nature polymers vulnerability degradation. The impacting subsequent creation nano-plastics are highlighted this abstract, provides a thorough review degradation processes. Macro-plastic deterioration complicated process that impacted conditions. started accelerated substantial way exposure sunshine or ultraviolet (UV) radiation. By causing photooxidation, UV light breaks apart polymer chains creates free radicals. These radicals encourage more deterioration, making brittle prone breaking up smaller pieces. Additionally, both freshwater saltwater, for macro-plastics. Polymer deteriorate result hydrolysis, chemical bonds broken presence water. Temperature, pH, certain microbes enzymes can all improve hydrolytic process. be further down tiny pieces mechanical forces wave action abrasion against rocks sediments. pace at degrade substantially influenced temperature, ambient raised. mobility increased, degradative processes sped higher temperatures. fragmentation synergistic interaction high temperatures,

Language: Английский

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Recent Catalytic Technologies for Microplastics Removal in Water: Current status

Water Air & Soil Pollution, Journal Year: 2024, Volume and Issue: 235(10)

Published: Aug. 26, 2024

Language: Английский

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Cutting‐Edge Strategies and Advancements for Combating Synthetic Polymer Pollution in Various Environmental Samples: A Review

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(44)

Published: Nov. 1, 2024

Abstract Plastic debris is unavoidably released into the ecosystems, and their physicochemical mechanical qualities deteriorate when exposed to environment. This, ultimately, leads generation of tiny fragments plastic, which are known as nanoplastics (<1000 nm) microplastics (<5 mm). Over past few years, pollution synthetic polymers has been reported in almost all compartments environment across globe. It regarded a hazard both human health natural systems. In addition, act vectors for contaminants they can adsorb accumulate from seawater. The accumulation plastic waste its widespread presence have drawn attention policymakers public. This global issue led creation numerous remediation solutions by innovators previous decades, either clear up old or stop entering various matrices review focused on extensive scientific research available effective techniques removing promote positive action progress this important area. Despite challenges, these offer vital opportunities, increasing awareness enhancing environmental quality. Further, article enriched incorporating bibliometric data that illustrates widely used methods matrices. According analysis, developed date (2010 2024). These encompass approaches, among chemical‐based enjoy more success. success be attributed diverse advantages offered over other techniques. Much now overcoming disadvantages developing efficient environmentally sound technologies.

Language: Английский

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