Experimental Investigation on Biosorption of Chromium from Aqueous Solution using Citrus limonium peel: Optimization of Process Parameters using Central Composite Design

Boddu, Sumalatha; Dulla, John Babu; Venkatanarayana, A.; Reddy, P. Rajasekhar; Sruthi, P. Divya

doi:10.5958/0974-360x.2018.00958.7

Cited by 8 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was perceived by the previous researchers that higher sorption capacity at lower temperatures was generally attributed to the easy access of chromium ions to the binding sites because of convection. On the other hand, at higher temperatures the metal ions become highly energized and this mobilization results in decreased sorption capacity [29].…”

Section: Effect Of Temperaturementioning

confidence: 99%

Adsorption studies of hexavalent chromium ions on the dead biomass of Cystoseira indica

2022

View full text Add to dashboard Cite

The biosorption of hexavalent chromium ions from aqueous solution was investigated using acid-modified dead biomass of the abundantly available brown marine alga Cystoseira indica from Karachi coastal area of Pakistan. The biosorbent was characterized by infrared spectroscopy and scanning electron microscopy. The optimum biosorption conditions, i.e., biosorbent dosage, contact time, initial metal ion concentration, pH, and temperature, were determined by carrying out batch-mode experiments. The sorption behavior was established by the Langmuir and Freundlich isotherms, which showed that although the uptake of metals was more feasible on a heterogeneous surface, homogeneous surface conditions seemed to exist at the same time. The thermodynamic parameters ∆G°, ∆H° and ∆S° calculated at different temperatures ranging from 298 to 318 K demonstrated that the biosorption was a spontaneous and exothermic process under the experimental conditions applied.

show abstract

Section: Effect Of Temperaturementioning

confidence: 99%