ArticleWater environment research : a research publication of the Water Environment Federation2026
Integrated Phytoremediation of Microplastics and Sustainable Biofuel Production Using Spirulina (Arthrospira) Platensis: A Case Study of the Ergene River in Türkiye.
Article in Water environment research : a research publication of the Water Environment Federation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study aims to develop and evaluate a microalgae-based phytoremediation strategy for microplastic (MP) removal from surface waters, whereas enabling biofuel production within a circular-economy framework, using the Ergene River Basin (Türkiye) as a case study. The novelty of this study lies in coupling MP retention, microalgal stress-induced lipid accumulation, and biodiesel-quality improvement within a single treatment-valorization pathway using a real contaminated river-water matrix. It is hypothesized that microalgae can simultaneously remove MPs and produce value-added biomass. The Ergene River Basin was selected because it is one of Türkiye's most industrially impacted river systems, receiving pollution pressure from textile, chemical, urban, and agricultural activities. Seasonal and spatial MP pollution was analyzed in surface-water samples collected from 10 high-risk locations between September 2023 and August 2024. These high-risk locations were identified based on their proximity to organized industrial zones, upstream-downstream discharge gradients, agricultural and urban inputs, and known pollution pressure along the river continuum. MP pollution was evaluated using particle quantification, morphological classification, and polymer identification via microscopy and FTIR confirmation. Interaction experiments were performed using Spirulina platensis. The experimental design included comparisons between MP-containing river water and control media, as well as photoperiod optimization. Microalgal growth, lipid accumulation, and MP removal efficiency were evaluated using standard analytical techniques. MP concentrations showed strong seasonal variation, reaching up to 320 particles L
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