A novel sorbent Ulva lactuca‐derived biochar for remediation of Remazol Brilliant Orange 3R in packed column

Abstract

An up‐flow fixed column study was conducted to remediate Remazol Brilliant Orange 3R (RBO3R) from contaminated solutions using biochar derived from Ulva lactuca biomass. The influences of column parameters on dye sorption were studied in detail, which include initial RBO3R concentration, bed depth, and flow rate. Optimization experiments indicated that maximum RBO3R column uptake of 0.114 mmol/g was observed at 0.25 mmol/L (initial RBO3R concentration), 0.3 L/hr (flow rate), and 25 cm (U. lactuca bed depth). Modeling of column sorption data was performed using the Yoon–Nelson, modified dose–response and Thomas models. The spent biochar was desorbed and rejuvenated using 0.01 M NaOH. The elutant (0.01 M NaOH) exhibited 99.7% efficiency, and the process was completed in 115 min with high overall concentration factor of 8.4.Practitioner points This study explores the impact of column parameters on the dye removal potential of U. lactuca‐derived biochar. At optimized condition, the biochar bed exhibited highest Remazol Brilliant Orange 3R uptake capacity of 0.114 mmol/g. The regeneration and desorption of U. lactuca‐derived biochar bed was possible with NaOH (0.01 M) as elutant.

Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

“…Modification could change the structure of biochar with increased pore volume, specific surface area, functional groups, active sites and so on, which may be involved in the electrostatic attraction, and specific interaction with dyes (Lawal et al 2019;Sewu et al 2019;Streit et al 2019). Macroalgae are rich in bioactive amines, sulfates, carboxyl, and hydroxyl compounds, properties that facilitate the binding of dye molecules on the surface of macroalgae-derived biochar (Ahmed et al 2019;Gokulan et al 2019). Another attractive method for the removal of dyes was photodegradation (Chen et al 2019e;Khataee et al 2019;Sharma et al 2019;Zhai et al 2019).…”

Optimization of Remazol Black B Removal Using Biochar Produced from Caulerpa scalpelliformis Using Response Surface Methodology

“…In recent times, many researchers investigated biosorption of dye molecules using low cost adsorbents that are produced from naturally available waste materials. Some of the commonly used biomass materials are bagasse [12], rice husk [12], coffee bean husk [12], vine shoots [13], pecan shell [12], corn cob [12], walnut shell [12], coconut shell [14][15][16], and seaweeds [17,18]. ese naturally available materials are considered as wastes that are generated in huge quantity every year.…”

Biochar for removal of dyes in contaminated water: an overview

“…As well, the pseudo-second-order equation was also called as Ho's second-order rate. This equation has been successfully applied to the biosorption kinetics of various dyes such as the removal of methylene blue from aqueous solution using coco-peat (Premkumar and Vijayaraghavan 2015) and sorption of Remazol dyes by green seaweed-derived biochar (Gokulan et al 2019a).…”