Document Details

Document Type : Thesis 
Document Title :
WATER REMEDIATION FROM HEAVY METAL IONS BY CHEMICALLY TREATED BIOMASS SOLID PHASE EXTRACTOR: BATCH AND FIXED- BED COLUMN STUDY
معالجة المياه من أيونات المعادن الثقيلة بواسطة مواد حيوية ماصة معالجة كيميائيا: دراسة كمية محددة والعمود الثابت
 
Subject : Faculty of Science 
Document Language : Arabic 
Abstract : Abstract Recently, pollution of our environment by chromium (VI) is known as one of the most important problem. Such class of pollutants poses a significant threat to human health and other living organisms in the ecosystem. Utilization of common agricultural solid waste materials e.g. coffee husk etc. are predominated due to their exceptional properties towards heavy metal uptake. Thus, the work in this study was focused on: 1. Assignment of surface morphology of non-modified and ZnCl2 modified coffee husk (CH) using TEM, SEM and XRD. pH of zero point charge (pHZPC) for the used solid phase extractor was determined. The value of pHZPC provides information about possible attraction and repulsion between sorbent and sorbate. 2. Studying the retention profile, kinetics, thermodynamic and sorption isotherms of chromium (VI) retention from aqueous solution by un-treated and activated coffee husk with ZnCl2 solid phase extractor (SPE). The data fitted well with the pseudo-second-order kinetic model. 3. Based on the retention profile data and the sorption isotherms of chromium (VI) sorption towards the used SPE, a dual-mode mechanism involving “solvent extraction” and an added component of surface adsorption is proposed. 4. Chromatographic separation of chromium (VI) from aqueous media and environmental water samples by reagent treated CH as a low cost and effective SPE sorbent packed column at reasonable flow rate. 
Supervisor : Dr. Basma G. Alhogbi 
Thesis Type : Master Thesis 
Publishing Year : 1440 AH
2018 AD 
Co-Supervisor : Prof. Mohammad. S. El-Shahawi, D.Sc 
Added Date : Sunday, December 2, 2018 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
مها غنام الرداديAL-Radadi, Maha GhanamResearcherMaster 

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