Study of the Removal of Toxic Anions from Contaminated Water Utilizing Natural Kaolinite Clay of Assam
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2011, Vol 1, Issue 2
Abstract
Groundwaters of many parts of Assam, a state of north-east India, are contaminated with high levels toxic arsenic, fluoride. The soil of the area also shows high levels of nitrite and nitrate. The presence of arsenic and fluoride in excessive limits in drinking water along with the attendant problems prevailing in many parts of Assam in the North Eastern India is well documented. Recently Dhemaji and Karimganj districts of Assam have been recorded as arsenic affected areas. Both the World Health organization (WHO) and the U.S. Environmental Protection Agency (USPEA) have classified arsenic as carcinogen. The present study observed the effectiveness of natural clay in the removal of these anions from contaminated water. For this purpose clay samples were collected from Longai of Karimganj district of Assam. This study observed the adsorption capacity of the clay minerals with respect to the parameters, adsorbent dosage, concentration, pH and contact time. SEM-EDX characterization shows the presence of kaolinite along with significant amount of iron and quartz in both the samples. XRD and FTIR analysis also reveals the presence of kaolin minerals. The efficacy of the local clay in removing contaminating anions is discussed in the article.
Authors and Affiliations
Sarma Jinamoni, Goswami Sarma
Keywords
Related Articles
- EP ID EP146497
- DOI -
- Views 87
- Downloads 0
Production of Xylanase by Aspergillus flavus FPDN1 on Pearl millet bran: Optimization of Culture Conditions and Application in Bioethanol Production
The production of extracellular xylanase by a locally isolated strain of Aspergillus flavus FPDN1 was studied for optimization of cultural conditions and saccharification followed by bioethanol production. Among the v...
[b]Kinetic and Equilibrium Studies of the adsorption of Mercury(II) ions from Aqueous Solution using Kaolinite and Metakaolinite clays from Southern Cameroon[/b]
[i]The elimination of mercury from aqueous solution by kaolinite (Ka1) and metakaolinite (Metaka1) by adsorption using batch mode was studied. The study highlighted several parameters, such as the contact time, mass of t...
A Sequential Extraction Method for the Chemical Speciation of Metals in Harmattan Dust Collected from Kano and Zaria Cities in Northern Nigeria
Harmattan dusts are the reservoir for many harmful constituents, elemental and biological including heavy metals and trace metals. Chemical speciation is the process of determining and identifying specific chemical speci...
[b] N-Iodosuccinimide Annulated Heterocyclization or Environment Friendly Surfactant Based Iodine Promoted Heterocyclization in Aqueous Media of a number of 1-allylhydroxy Naphthalene Precursors: Which One is Superior?[/b]
[i] A number of 2-(iodomethyl)-1,2-dihydronaphtho[2,1-b]furan derivatives have been synthesized from the corresponding allylhydroxy naphthalene precursors involving N-iodosuccinimide in acetonitrile and also by empl...
[b] Isolation and Characterization of Starch from Cultivated and Uncultivated Rubber Seed Flour[/b]
[i]Starches were isolated from both cultivated (Hevea brasiliensis) and uncultivated (Funtumia elastica) rubber seed flours species using 0.2 % NaOH. The starch isolated had high carbohydrate content (82.9-88.9 g/1...