http://textilamir.persiangig.com/document/3.pdf

Cationic and anionic dye adsorption by agricultural solid wastes: A comprehensive review

https://opus.lib.uts.edu.au/bitstream/10453/36489/5/Adsorptive%20removal%20of%20antibiotics%20from%20water%20and%20wastewater%20%28Accepted%20version%29.pdf

Adsorptive removal of antibiotics from water and wastewater: Progress and challenges.

Adsorption of dye from aqueous solution by cashew nut shell: Studies on equilibrium isotherm, kinetics and thermodynamics of interactions

Rice husk, which is a relatively abundant and inexpensive material, is currently being investigated as an adsorbent for the removal of various pollutants from water and wastewaters. Various pollutants, such as dyes, phenols, organic compounds, pesticides, inorganic anions, and heavy metals can be removed very effectively with rice husk as an adsorbent. This article presents a brief review on the role of rice husk and rice husk ash in the removal of various pollutants from wastewater. Studies on the adsorption of various pollutants by rice husk materials are reviewed and the adsorption mechanism, influencing factors, favorable conditions, etc., discussed in this article. It is evident from the review that rice husk and its ash can be potentially utilized for the removal of various pollutants from water and wastewaters.

Rice Husk and Its Ash as Low-Cost Adsorbents in Water and Wastewater Treatment

Removal of anionic dye Congo red from aqueous solution by raw pine and acid-treated pine cone powder as adsorbent: Equilibrium, thermodynamic, kinetics, mechanism and process design

Use of rice husk for the adsorption of congo red from aqueous solution in column mode

Wheat husk, an agriculture product, was used to adsorb methylene blue (MB) from aqueous solutions. Variables of the system, including contact time, pH, and equilibrium MB concentration, were adopted to study their effects on MB adsorption. The results showed that as the equilibrium concentration of MB increased, quantity of MB sorption onto wheat husk increased correspondingly. The change of MB adsorbed quantity was very small when the pH was increased from 5.0 to 10.0. The equilibrium data was fitted well by the Langmuir model. The adsorption processes followed the pseudo-second-order rate kinetics. The results in this study indicated that wheat husk was an attractive alternative for removing cationic dyes from the dye wastewater.

Yufei Li

Papers

Use of rice husk for the adsorption of congo red from aqueous solution in column mode

Adsorption of Methylene Blue from Aqueous Solution by Wheat Husk in Batch Mode