HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Book sections

Valorization of Dairy Sludge in Water Treatment: Assessment of Biosorption of an Industrial Dye (A-BG)

Abstract : Pollution control has become a priority today. Industrial wastewater in general and from the textile and paper industries in particular can contain a variety of organic micro pollutants including dyes. The non treatment of these waters poses a serious problem for the ecosystem. In order to reduce the polluting load of this water, it is advantageous to carry out treatments before it is discharged. Biosorption can be considered as an effective and inexpensive alternative to the various existing technologies for the removal of micro pollutants. Biosorption was studied as a function of initial pH solution, biosorbent dose, biosorbent particle diameter and initial dye ion concentration. These parameters were measured in batch experiments. Equilibrium uptake increased with increasing dye concentration with a maximum sorption capacity of a 178.6 mg g-1. Model equations such as Langmuir and Freundlich isotherms were used to analyze the adsorption equilibrium data and the best fits to the experimental data were provided by the first isotherm model. Scanning electron microscopy and energy-dispersive X-ray (SEM-EDX), Brunauer–Emett–Teller (BET), Fourier transform infrared analyses (FTIR) and microbiological characterisation were also performed to characterize the biosorbent. To describe the adsorption mechanism, kinetic models such as pseudo-second-order and the intra particle diffusion were applied. The proposal study consists of testing in a batch system the ability of a dairy sludge to fix a dye used in the textile industry, A-BG (Astrazon brilliant) in aqueous solution. Dairy sludge was investigated as potential adsorbent for the removal of hazardous cationic dyes
Document type :
Book sections
Complete list of metadata

Contributor : Administrateur Imt - Mines Alès Connect in order to contact the contributor
Submitted on : Thursday, March 17, 2022 - 2:09:13 PM
Last modification on : Saturday, March 19, 2022 - 3:06:28 AM




Mohamed Sassi, Benaouda Bestani, Guibal Eric, Soumaya Sassi. Valorization of Dairy Sludge in Water Treatment: Assessment of Biosorption of an Industrial Dye (A-BG). Emerging Challenges in Environment and Earth Science Vol. 2, Book Publisher International (a part of SCIENCEDOMAIN International), pp.56-71, 2022, 978-93-5547-385-1. ⟨10.9734/bpi/ecees/v2/1686A⟩. ⟨hal-03611898⟩



Record views