Recycling paper sludge into hydrochar and ZnO nanocomposite for enhanced ammonium adsorption in aqueous solutions.

RSC Adv · 2025 · PMC11866475 · PMID 40017644

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a clear trendno p-value reported

The results revealed a clear trend where both the adsorption capacity ( q ) and removal efficiency ( H ) increased with higher ZnO-NP ratios ( Fig. 4 ).

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