Work

Full factorial experimental design applied to methylene blue adsorption onto Alfa stems

Year: 2015

Type: article

Abstract: Full factorial experimental design technique was used to study the main effects and interactions between operational parameters in batch adsorption of methylene blue (MB) using Alfa stems as adsorbent. The important parameters which affect MB removal efficiency and adsorption amount, such as initial concentration, particle size, solution pH, and contact time, were investigated. One set of full 24 factorial designs with two central points (18 experiments) was tested. The effects of individual variables and their interactions were observed on adsorbed MB amount qt (mg/g). From statistical analysis, the most effective parameters of adsorbed MB amount were initial concentration and solution pH. The interaction between initial concentration and solution pH was the most important factor. The maximum quantity retained was 25.89 mg/g; it was obtained with an initial concentration of 100 mg/L, adsorbent dose of 4 g/L, granulometry of [0.50–0.63 mm], and pH of the solution 12, with a stirring velocity of 500 rpm for 120 min.

Source: Desalination and Water Treatment

DOI: 10.1080/19443994.2015.1029003

Authors: Lamia Hamdi, Leila Boumehdi Toumi, Zineb Salem, Khedidja Allia

Institution: University of Sciences and Technology Houari Boumediene

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: hybrid

Estimated APC paid: $1,000