Journal ArticleDOI
Sequential synergetic sorption analysis of Gracilaria Rhodophyta biochar toward aluminum and fluoride: A statistical optimization approach.
Andraju Naga Babu,Devarapu Srinivasa Reddy,Govindarajan Suresh Kumar,Kunta Ravindhranath,Godavarthi Venkata Krishna Mohan +4 more
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TLDR
The synthesis of robust biochar from Gracilaria Rhodophyta red weeds is regenerative enough and could achieve synergetic removal of Al(III) and fluoride ions from industrial and ground water contaminated water bodies.Abstract:
The present work proposes the synthesis of robust biochar from Gracilaria Rhodophyta red weeds for sequential removal of Al(III) and fluoride from wastewater. The sorption experiments have been modeled by preliminary optimization of operational parameters using 24 factorial statistical modeling. The model has estimated an optimum sequential synergetic removal of 44.5 mg/g of Al(III) and 2.1 mg/g of fluoride onto the biochar. FESEM, BET, XRD, EDX, and FTIR established the potentiality of biochar toward synergetic sorption of Al(III) and fluoride. The thermodynamic analysis projected that the adsorption is physisorption in nature. The adsorption of Al(III) and fluoride follows the Langmuir and Freundlich isotherm models, respectively, and the kinetic analysis established the pseudo-second-order deposition of Al(III) and fluoride ions. The synthesized adsorbent is regenerative enough and could achieve synergetic removal of Al(III) and fluoride ions from industrial- and groundwater-contaminated water bodies. PRACTITIONER POINTS: Biochar from seaweeds is explored in the sequential removal of Al(III) and F- ions. Statistical model is developed for % adsorption and tested for reliability by ANOVA. GRBC sorbed 44.5 and 2.1 mg/g of Al(III) and F- ions, respectively, at optimum levels. FESEM, EDX, XRD, and FTIR characterization confirm the potentiality of the GRBC. GRBC sorbed ⁓90% of Al(III) and F- ions from wastewater and is regenerative.read more
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Journal ArticleDOI
Evaluation of fluoride and cadmium adsorption modification of corn stalk by aluminum trichloride
TL;DR: The aluminum modified corn stalk biochar (AlCl3-BC) was prepared to adsorb fluoride from single ion solution and from binary mixtures with cadmium.
Journal ArticleDOI
Immobilization and retention of caffeine in soil amended with Ulva reticulata biochar.
S. Keerthanan,Chaminda Gunawardane,Thiruchenduran Somasundaram,Tharuka Jayampathi,Tharuka Jayampathi,Chamila Jayasinghe,Meththika Vithanage +6 more
TL;DR: In this paper, the authors evaluate the immobilization and retention of caffeine (CFN) in soil and the influence of biochar for the CFN transport in agricultural soil using batch and column experiments.
Journal ArticleDOI
State-of-the-art of research progress on adsorptive removal of fluoride-contaminated water environments using biochar-based materials: Practical feasibility through reusability and column transport studies.
Rakesh Kumar,P. Sharma,Wen Han Yang,Mika Sillanpää,Jian Ku Shang,S. Bhattacharya,Meththika Vithanage,Jyoti Prakash Maity +7 more
TL;DR: In this article , the authors highlight the current state of knowledge for fluoride adsorption using biochar-based materials and the limitations of biochar for fluoride-contaminated groundwater and industrial wastewater treatment.
Journal ArticleDOI
Synergistic Fluoride Adsorption by Composite Adsorbents Synthesized From Different Types of Materials—A Review
TL;DR: In this article , the authors classified the typical fluoride removal adsorbents into four types: metal oxides/hydroxides, biopolymers, carbon-based, and other adsorents.
Journal ArticleDOI
Cerium alginate cross-linking with biochar beads for fast fluoride removal over a wide pH range
TL;DR: In this paper , reed biochar beads cross-linked with cerium alginate were prepared by the gelation-spheroidization-carbonization method to serve as an efficient fluoride adsorbent.
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