Search results for "ammoniumioni"

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Removal of ammonium ions from aqueous solutions using alkali-activated analcime as sorbent

2023

Five alkali-activated analcime (ANA) sorbents (ANA-MK 1, ANA 2, ANA 3, ANA-MK 4, and ANA-MK 5) were developed for ammonium (NH4+) ion removal. Acid treatment and calcination were used as pre-treatments for analcime, and metakaolin (MK) was used as a blending agent in three sorbents. Sorption experiments were performed to evaluate the effects of sorbent dosage (1–20 g L−1), initial NH4+ ion concentration (5–1000 g L−1), and contact time (1 min–24 h). ANA-MK 1, ANA 2, and ANA-MK 4 were the most efficient sorbents for NH4+ ion removal, with a maximum experimental sorption uptake of 29.79, 26.00, and 22.24 mg g−1, respectively. ANA 3 and ANA-MK 5 demonstrated…

sorptionsilikaatitalkali-activated analcime; ammonium ion; isotherm models; kinetic models; sorptionGeneral Chemical EngineeringkationitGeneral Engineeringammonium ionkinetic modelsalkali-activated analcimeammoniumioniGeneral Energytypensidontasorptiomineraalitisotherm modelstyppiyhdisteetjäteveden käsittely

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