Chemo-mechanical modification of cottonwood for Pb2+ removal from aqueous solutions: Sorption mechanisms and potential application as biofilter in drip-irrigation
Biosorbents were prepared through ball milling and then alkali treatment.
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Chemo-mechanically modified biosorbent showed good Pb2+ sorption ability.
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In the drip irrigation system, biofilter reduced the accumulation of Pb in radish.
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Biofilter can be used as a safeguard for wastewater irrigation.
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