Environmental Pollutants and Bioavailability · 2019 · 54 citations · 43 references
EngineeringEnvironmental EngineeringSoil SciencesInorganic ChemistrySoil ChemistryWater TreatmentHeavy Metal RemediationHeavy Metal RemovalIon ExchangeIron HydroxidesMineral Surface ChemistrySurface AdsorptionAdsorbent CapacityAdsorption CapacityAdsorption KineticsBiochar AdsorptionBiochar SorbentsHeavy Metal SorptionSorptionSorption Kinetics
The Cd(II) adsorption of kiwi biochar functionalized with Mg-Fe (3:1) layered double hydroxides (LDH) was studied. And the biochar was got via liquid-phase deposition, by incorporating Mg-Fe layered double hydroxide (Mg-Fe LDH) particles into kiwi biochar (KB/LDH). The batch of sorption experiments were studied, including adsorption kinetics and isotherm and the effects of pH, ion strength (IS) and co-existing ions. The KB/LDH composite showed a strong sorption ability to Cd(II) in aqueous solutions with the adsorption capacity of 25.6 mg g−1, compared with pristine biochar of 1.78 mg g−1. The adsorption of Cd(II) on KB/LDH composite increased with the decreasing of IS, decreased first and then grew larger with the increase of pH and was observed irrespective of the co-existence of K+, Cl− and NO3−. To sum up, the KB/LDH can be potentially used as an alternative adsorbent to amend the water and soil contaminated by Cd(II).
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Using poultry litter biochars as soil amendments
K. Y. Chan, Lukas Van Zwieten, I. Meszaros et al. · Soil Research · 2008 · 1.1K citations
Agriculture, Agronomy, Soil Sciences +17