Details

Autor(en) / Beteiligte

• Paul Nayagam, J. Oliver
• Prasanna, K.

Titel

Utilization of shell-based agricultural waste adsorbents for removing dyes: A review

Ist Teil von

• Chemosphere (Oxford), 2022-03, Vol.291 (Pt 1), p.132737-132737, Article 132737

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• Dye existence in the water body adversely impacts the habitat and the quality of the aquatic system. Considering different physical and chemical methods, adsorption is a propitious substitute for extracting dyes from wastewater specifically due to its performance, high selectivity, less expense, clear operation, and existence in a broad area of experimental circumstances. These benefits are directly linked to the essence of the adsorbent strength used in dye adsorption. In keeping with the principles of green chemistry, the adsorbent materials’ accessibility in large amounts that involves easy preparation should boost the effectiveness of the adsorption cycle. Agricultural waste shell-based adsorbent is a novel and better alternative for the expansive adsorbent. This article focuses on the use of a raw and activated adsorbent from agricultural waste shell-based material (on the mitigation of different types of synthetic as well as natural textile dye particles) to find out adsorption capacity based on its operational conditions like pH, dosage, primary concentration of dye, equilibrium time and temperature. Oil palm empty agricultural waste bunch fiber has a maximum adsorption capacity of 393.67 mg/g of Cibacron blue 3G-A dye and Almond shell activated carbon has a maximum adsorption ability of 833.33 mg/g of Methylene Blue dye. Adsorption removal capacity of various raw agricultural wastes and activated agricultural wastes is reviewed. Agricultural waste shell-based adsorbents are a low-cost adsorbent that is a safer alternative to traditional adsorbents. Fig. 1 Graphical representation of the topics widely discussed under this review. [Display omitted] •Agricultural waste shell-based adsorbent correlates with the Langmuir isotherm model and pseudo-second-order kinetics.•The use of phosphoric acid for chemical activation with peat soil as the carbon precursor increases the adsorption capacity.•Chemo-physical activation of empty agricultural waste bunch fiber biochar equips absorption of dyes in waste water effluents.•Activated carbon with larger surface area can be synthesized from almond shell using potassium hydroxide as a triggering agent.