Document Details

Document Type : Article In Journal 
Document Title :
Utilization of Nitrogen Containing Pregelled Starch Derivatives as Biodegradable Polymers for Heavy Metal Ions Removal
الاستغلال للنّتروجين يحتوي على مشتقّات نشا بريجيليد كبوليمرات هشّة لإزالة أيونات المعدن الثّقيلة
 
Subject : Utilization of Nitrogen Containing Pregelled Starch Derivatives as Biodegradable Polymers for Heavy Metal Ions Removal 
Document Language : English 
Abstract : Two type of nitrogen containing pregelled starch derivatives having amide groups (CONH2) were used in heavy metal ions removal from its solutions. These pregelled starch derivatives were carbamated pregelled starch (CPS) and poly (methacrylamide)-pregelled starch graft copolymer (PMamPSGC). Different factors affecting adsorption of metal ions onto these substrates such as metal ion concentration, pH, treatment time and temperature as well as type of starch derivatives were studied. Results obtained reflect the following findings: (a) the adsorption values of both nitrogen containing starch derivatives in question increase by increasing the metal ion concentration up to 50 mmol L-1 then levels off, (b) poly (methacrylamide)-pregelled starch graft copolymer was selective adsorbent for Hg2+ at pH 0.5-1, (c) The adsorption values on these pregelled starch derivatives at different metal ions follow the order: Hg2+ > Cu2+ > Zn2+ > Pb2+, (d) The adsorption efficiency % of metal ions in case of poly (methacrylamide)-pregelled starch graft copolymer is higher than that in case of carbamated pregelled starch irrespective of the metal ion used, (e) The adsorption values is higher at 30?C then decreases by raising the temperature to 50 and 70?C and (f) The adsorption values increase by increasing the treatment time up to 5 h then levels off. 
ISSN : 1319-0989 
Journal Name : Arts and Humanities Journal 
Volume : 4 
Issue Number : 2 
Publishing Year : 1424 AH
2004 AD 
Article Type : Article 
Added Date : Sunday, January 30, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عبدالرحيم سمر قنديsamar ghandy, abdulrahim ResearcherDoctorate 

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