6533b7ddfe1ef96bd127480f
RESEARCH PRODUCT
Ammonium adsorption, desorption and recovery by acid and alkaline treated zeolite
Beatriz CanoGiorgio ManninaSofia Maria MuscarellaLuigi BadaluccoVito Armando Laudicinasubject
inorganic chemicalsEnvironmental EngineeringSettore AGR/13 - Chimica Agraria0207 environmental engineeringFOS: Physical sciencesBioengineering02 engineering and technologyApplied Physics (physics.app-ph)010501 environmental sciencesWastewater01 natural sciencesAmmonium adsorptionWater PurificationAdsorptionDesorptionPhysics - Chemical PhysicsAmmonium CompoundsAlkaline and acid treatments Ammonium exchange capacity Ammonium kinetic adsorption Clinoptilolite Resource recovery020701 environmental engineeringZeoliteWaste Management and Disposal0105 earth and related environmental sciencesResource recoveryChemical Physics (physics.chem-ph)ClinoptiloliteAqueous solutionSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleRenewable Energy Sustainability and the EnvironmentChemistryfood and beveragesGeneral MedicinePhysics - Applied Physics6. Clean waterWastewaterZeolitesAdsorptionWater Pollutants ChemicalNuclear chemistrydescription
In this study, the suitability of zeolite as a possible medium for ammonium adsorption, desorption and recovery from wastewater was investigated. Specifically, batch adsorption and desorption studies with solutions enriched in NH$_4^+$ were conducted employing zeolite to evaluate how the chemical treatment and contact time affect adsorption and desorption. Several experimental tests were carried out considering both untreated and treated zeolite. Untreated and HCl-Na treated zeolite adsorbed up to 11.8 mg NH$_4^+$ g$^{-1}$ and showed the highest efficiency in recovering NH$_4^+$ from aqueous solution. Regardless of pre-treatment, treatments with NaCl resulted in higher and faster adsorption of NH$_4^+$ than treatments with CaCl$_2$ and MgCl$_2$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-12-01 | Bioresource Technology |