Removal of hexavalent chromium via biochar-based adsorbents: State-of-the-art, challenges, and future perspectives

R Sinha, R Kumar, P Sharma, N Kant, J Shang… - Journal of …, 2022 - Elsevier
Chromium originates from geogenic and extensive anthropogenic activities and significantly
impacts natural ecosystems and human health. Various methods have been applied to …

Theoretical models of sorption kinetics including a surface reaction mechanism: a review

W Plazinski, W Rudzinski, A Plazinska - Advances in colloid and interface …, 2009 - Elsevier
A review of a certain class of theoretical models describing the kinetics of pollutants sorption
onto various sorbents is presented. These assuming the rate of surface reaction as the rate …

Biosorbents for hexavalent chromium elimination from industrial and municipal effluents

B Saha, C Orvig - Coordination Chemistry Reviews, 2010 - Elsevier
The presence of hexavalent chromium in wastewater is a potential hazard to aquatic
animals and humans. There are various mechanisms proposed, kinetic models used and …

A new absorbent by modifying walnut shell for the removal of anionic dye: kinetic and thermodynamic studies

JS Cao, JX Lin, F Fang, MT Zhang, ZR Hu - Bioresource technology, 2014 - Elsevier
A novel, low cost and easy regeneration biosorbent, chem-modified walnut shell (MWNS),
was studied to investigate its potential for removal of an anionic dye, reactive brilliant red K …

Removal of Cr (VI) by thermally activated weed Salvinia cucullata in a fixed-bed column

SS Baral, N Das, TS Ramulu, SK Sahoo, SN Das… - Journal of Hazardous …, 2009 - Elsevier
The present study evaluates the feasibility of using a thermally activated fresh water weed in
removing Cr (VI) from wastewater through column studies. The effect of flow rate, bed height …

Applicability of plant based biosorbents in the removal of heavy metals: a review

CK Jain, DS Malik, AK Yadav - Environmental Processes, 2016 - Springer
Heavy metals are toxic, persistent, carcinogenic and mutagenic in nature. Industrial
wastewater is a widely known source for metal pollution in aquatic bodies as well as surface …

Removal of Cr (VI) from aqueous solution using modified corn stalks: Characteristic, equilibrium, kinetic and thermodynamic study

S Chen, Q Yue, B Gao, Q Li, X Xu - Chemical Engineering Journal, 2011 - Elsevier
The adsorbent modified from corn stalks was synthesized after the reaction between
epichlorohydrin and triethylamine by using diethylenetriamine (DETA) as modifying agent in …

Equilibrium and kinetic adsorption study of the adsorptive removal of Cr (VI) using modified wheat residue

S Chen, Q Yue, B Gao, X Xu - Journal of colloid and interface science, 2010 - Elsevier
A new adsorbent modified from wheat residue was synthesized after reaction with
epichlorohydrin and triethylamine by using the modifying agents of diethylenetriamine in the …

Chromium (VI) removal from water using fixed bed column of polypyrrole/Fe3O4 nanocomposite

M Bhaumik, K Setshedi, A Maity… - Separation and Purification …, 2013 - Elsevier
The adsorption of Cr (VI) using polypyrrole/Fe3O4 nanocomposite adsorbent was
investigated in a continuous flow fixed-bed column. The effects of composition of the …

Adsorption behavior of Cu (II) and Co (II) using chemically modified marine algae

R Foroutan, H Esmaeili, M Abbasi… - Environmental …, 2018 - Taylor & Francis
In this study, brown algae-modified biomass Padina sanctae crucis was used for copper (Cu
(II)) and cobalt (Co (II)) heavy metal ions adsorption in synthetic wastewater. The effects of …