Investigating the surface characteristics of chemically modified and unmodified rice husk ash; bottom-up approach for adsorptive removal of water contaminants

2014 ◽  
Vol 54 (2) ◽  
pp. 547-556 ◽  
Author(s):  
Gayani Chathurika Pathiraja ◽  
Dilini Kumari De Silva ◽  
Lasangi Dhanapala ◽  
Nadeeshani Nanayakkara
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Surface Characteristics ◽  
Water Contaminants ◽  
Bottom Up ◽  
Adsorptive Removal ◽  
Chemically Modified

Adsorptive removal of Cr(VI) from aqueous solution using rice husk and rice husk ash

2018 ◽  
Vol 130 ◽  
pp. 151-160
Author(s):  
Gopal Chandra Ghosh ◽  
Samina Zaman ◽  
Tapos Kumar Chakraborty
Keyword(s):  
Aqueous Solution ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Adsorptive Removal

Adsorptive removal of phenol from aqueous solutions using chemically activated rice husk ash: equilibrium, kinetic, and thermodynamic studies

2019 ◽  
Vol 158 ◽  
pp. 233-244 ◽  
Author(s):  
Ahmad Jonidi Jafari ◽  
Ahamd Alahabadi ◽  
Mohmmad Hossien Saghi ◽  
Zahra Rezai ◽  
Ayoob Rastegar ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Thermodynamic Studies ◽  
Adsorptive Removal ◽  
Kinetic And Thermodynamic Studies

scholarly journals Preparation and characterization of mesoporous zeolite from solid waste

2020 ◽  
Vol 9 (4) ◽  
pp. 64-69
Author(s):  
Hao Nguyen Truong Gia ◽  
Huy Tran Huynh Gia ◽  
Phuong Nguyen Thi Truc ◽  
Tu Le Nguyen Quang ◽  
Dung Nguyen Van ◽  
...  
Keyword(s):  
Solid Waste ◽  
Surface Area ◽  
Rice Husk ◽  
Pore Volume ◽  
Rice Husk Ash ◽  
Mesoporous Zeolite ◽  
Top Down ◽  
Bottom Up ◽  
Gel Composition

In this study, experimental results on mesoporous zeolite preparation from a common solid waste, the rice husk ash by a top-down and bottom-up approach were reported. In top-down method, the consecutive treatments of zeolite by acid and alkaline in the presence of a cationic surfactant (CTAB) successfully generated mesopores in the zeolite. In bottom-up method, the sufficient added amount of CTAB in the gel composition could form mesopores in the zeolite. The obtained mesoporous zeolite possessed mesopore with a size of around 3-6 nm in both top-down and bottom-up approaches. As a result, the pore volume of the mesoporous zeolite was significantly increased by more than 60% when comparing to the “parent” rice-husk-ash derived zeolite. Significantly, the mesopore surface area of the mesoporous zeolite could be 2.4 times higher than that of the parent zeolite.

Activation of Metakaolin/Slag Blends Using Alkaline Solutions Based on Chemically Modified Silica Fume and Rice Husk Ash

2011 ◽  
Vol 3 (1) ◽  
pp. 99-108 ◽  
Author(s):  
Susan A. Bernal ◽  
Erich D. Rodríguez ◽  
Ruby Mejia de Gutiérrez ◽  
John L. Provis ◽  
Silvio Delvasto
Keyword(s):  
Silica Fume ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Alkaline Solutions ◽  
Modified Silica ◽  
Chemically Modified ◽  
Chemically Modified Silica

Adsorptive removal of diuron on biomass ashes: a comparative study using rice husk ash and bagasse fly ash as adsorbents

2016 ◽  
Vol 57 (47) ◽  
pp. 22378-22391 ◽  
Author(s):  
Sunil K. Deokar ◽  
Diksha Singh ◽  
Sweta Modak ◽  
Sachin A. Mandavgane ◽  
Bhaskar D. Kulkarni
Keyword(s):  
Fly Ash ◽  
Comparative Study ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Adsorptive Removal ◽  
Bagasse Fly Ash ◽  
Biomass Ashes
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