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Presence of Polystyrene Microplastics in Cd Contaminated Water Promotes Cd Removal by Nano Zero-Valent Iron and Ryegrass (Lolium Perenne L.)
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Presence of polystyrene microplastics in Cd contaminated water promotes Cd removal by nano zero-valent iron and ryegrass (Lolium Perenne L.)
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Researchers investigated how polystyrene microplastics affect cadmium removal from water by ryegrass combined with nano zero-valent iron variants, finding that microplastics facilitated uptake of both microplastics and cadmium into plant roots in some treatment combinations. Plants that internalized microplastics contained more cadmium across all nano zero-valent iron treatments, suggesting microplastics can enhance cadmium accumulation in phytoremediation systems.
Carboxymethylcellulose-modified nano-zero-valent iron (C-nZVI) promotes ryegrass phytoremediation of cadmium in sediments co-contaminated with multiple microplastics: Mechanisms revealed by PLS-PM
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A study found that applying carboxymethylcellulose-modified nano-zero-valent iron (C-nZVI) to soils co-contaminated with cadmium and six types of microplastics significantly boosted ryegrass growth and cadmium uptake while stabilising the metal in a less bioavailable form in the sediment. The results suggest C-nZVI could help rehabilitate agricultural soils facing the increasingly common problem of simultaneous microplastic and heavy-metal pollution.
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