ABSORPTION OF METAL IONS BY NATIVE AND MODIFIED NIGERIAN WOOL
ABSORPTION OF METAL IONS BY NATIVE AND MODIFIED NIGERIAN WOOL
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Date
1979-02
Authors
NDUJI, ALEXANDER AGODI
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Abstract
Wool and h a i r c o n s t i t u t e a major component of e f f l u e n t materials
in the tanning industry. Since they are insoluble in aqueous medium
where most of the tanning processes are undertaken, it becomes
necessary to i n v e s t i g a t e other sources that will convert their
i n s o l u b i l i t y into a useful process and cut down the cost of production
Conditioned native and modified Yankasa wool f i b r e s were treated
with metal ions and the uptake was measured. The e f f e ct of metal
ion uptake on the mechanical properties of the wool was a l s o determined.
Yankasa wool f i b r e s impregnated with m e t a l ions were subjected to
infrared spectroscopic s t u d i e s . These s t u d i e s showed that interaction
between the reactive groups in wool (hydroxyl, amino,phenolic and
carboxyl groups etc) and the electron d i f i c i e n t metal ions r e s u lt
in complex formation. As a r e s u l t , Yankasa wool f i b r e s which
h i t h e r t o are drained i n t o effluent tanks and l a t e r c o l l e c t e d and
burnt, can now serve as scavengers for r e t r i v i n g expensive and toxic
metal ions from i n d u s t r i a l water. Furthermore, the treatment has
been found to improve the t e n s i l e strength, f l e x i b i l i t y and modulus.
Description
A THESIS PRESENTED TO THE
AHMADU BELLO UNIVERSITY
IN PARTIAL FULFILMENT FOR THE DEGREE OF
MASTER OF SCIENCE
IN POLYMER SCIENCE AND TECHNOLOGY
Keywords
ABSORPTION, METAL IONS, NATIVE, MODIFIED NIGERIAN WOOL