Experimental and statistical analysis of As(III) adsorption from contaminated water using activated red mud doped calcium-alginate beads

Babu, A. Naga; Sree, T. Raja; Reddy, D. Srinivasa; Kumar, G. Suresh; Mohan, G. Krishna

doi:10.1080/09593330.2019.1681520

Cited by 22 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Temperature is a vital parameter in adsorption progress; the effects of different operating temperatures (288.15 K, 298.15 K, and 308.15 K) are investigated in this research. The adsorption thermodynamic is revealed by the widely used Van’t Hoff equation as follows [26]: (11) Δ G 0 = − R T ln q e C e , (12) Δ G 0 = Δ H 0 − T Δ S 0 , …”

Section: Methodsmentioning

confidence: 99%

Anionic Dye Removal by Polypyrrole-Modified Red Mud and Its Application to a Lab-Scale Column: Adsorption Performance and Phytotoxicity Assessment

Zhang

Yin

Qiao

et al. 2021

Adsorption Science & Technology

View full text Add to dashboard Cite

In this study, polypyrrole-modified red mud (PRM) was prepared for the efficient removal of anionic dyes (methyl orange and Congo red) from aqueous solutions. The phytotoxicity (bean sprouts) of the dye solution before and after dye removal was investigated. Adsorption kinetics confirmed that the adsorption of methyl orange (MO) and Congo red (CR) on PRM was controlled by chemical reactions between the functional groups of polypyrrole and dyes. From Langmuir isotherm fitting, we found the theoretical adsorption capacities of MO and CR on PRM were 194.1 and 314.9 mg/g, respectively. The adsorption progress of MO and CR on PRM was found to be spontaneous and endothermic. The column studies demonstrated that, under dynamic flow, the PRM can efficiently remove MO and CR from aqueous solution, with adsorption capacities of 31.08 and 55.04 mg/g, respectively. In the toxicity test, the phytotoxicity of the column effluents (after dye removal) was significantly lowered compared to the initial dye influents. After the removal of MO and CR, the average root length of bean sprouts was increased from 3.30 cm to 5.18 cm and from 3.01 cm to 7.00 cm, respectively. These findings highlighted the efficient removal of dyes by PRM from aqueous solution, demonstrating the possible application of PRM for the removal of dye from dye-contaminated wastewaters.

show abstract

Section: Methodsmentioning

confidence: 99%

Anionic Dye Removal by Polypyrrole-Modified Red Mud and Its Application to a Lab-Scale Column: Adsorption Performance and Phytotoxicity Assessment

Zhang

Yin

Qiao

et al. 2021

Adsorption Science & Technology

View full text Add to dashboard Cite

show abstract

“…ARM possesses various functional groups such as ‐OH, ‐C = O, ‐CH, ‐SiAlO (Guo et al, 2014; Liang et al, 2014; Naga Babu et al, 2021) on its surface, which play a crucial role in adsorption by acting as binding sites for F − adsorption. These groups are involved in ion exchange.…”

Section: Resultsmentioning

confidence: 99%

Fluoride removal using activated red mud

Mohan,

Goyal,

Kushwaha

et al. 2023

Environmental Quality Mgmt

View full text Add to dashboard Cite

Groundwater contamination with fluoride is a cause of concern worldwide. This study was aimed to explore the feasibility of activated red mud (ARM) for adsorption of fluoride from aqueous solutions. The morphology of the adsorbent was characterized using scanning electron microscope and elemental composition was analyzed using X‐ray fluorescence. Parameters such as pH and adsorbent dose were optimized to achieve maximum removal efficiency. Maximum removal efficiency of 96% was obtained at pH 7 with an adsorbent dose of 20 g/L. The isotherm and kinetic studies revealed that Langmuir isotherm and pseudo‐second‐order kinetic models best explained the adsorption process. The study established that ARM could be an environment‐friendly and efficient adsorbent for the removal of fluoride from water.

show abstract

A Mini-Review on Natural and Modified Clays for Removal of Organic and Inorganic Pollutants From Wastewater and Their Other Applications

El Alouani,

Aouan,

Bassam

et al. 2024

Studies in Big Data

View full text Add to dashboard Cite

Experimental and statistical analysis of As(III) adsorption from contaminated water using activated red mud doped calcium-alginate beads

Cited by 22 publications

References 52 publications

Anionic Dye Removal by Polypyrrole-Modified Red Mud and Its Application to a Lab-Scale Column: Adsorption Performance and Phytotoxicity Assessment

Anionic Dye Removal by Polypyrrole-Modified Red Mud and Its Application to a Lab-Scale Column: Adsorption Performance and Phytotoxicity Assessment

Fluoride removal using activated red mud

A Mini-Review on Natural and Modified Clays for Removal of Organic and Inorganic Pollutants From Wastewater and Their Other Applications

Contact Info

Product

Resources

About