Approaches to Near Zero Utilization of Water in the Post tanning Operations of Leather Processing
| dc.contributor.advisor | K J., Sreeram (PhD) | |
| dc.contributor.author | Solomon, Fessehaye | |
| dc.date.accessioned | 2018-12-19T12:00:41Z | |
| dc.date.accessioned | 2023-11-28T13:37:04Z | |
| dc.date.available | 2018-12-19T12:00:41Z | |
| dc.date.available | 2023-11-28T13:37:04Z | |
| dc.date.issued | 2014-09 | |
| dc.description.abstract | Any industrial activity would generate waste, whose form would be as solid, liquid and/or gas. While industrialization is important to a nation’s economy, the wellbeing of human kind is even more important. The conflict for water between mankind consumption and industrial activity is increasing day by day as the population is increasing. An industrial activity like leather processing is a water intensive process, with most of the industries consuming 35 L of water to process every kilogram of hide/skin. While it is easy to wish away an activity like leather processing, an analysis of the relevance of this industry to Nation building would reveal that this is the only industry that uses a byproduct of meat industry, viz., skin and converts it into a fashion commodity. In the transformation, a host of rural men and women are involved directly or indirectly. For the nation, it is a good source of export income. This research work is one of an out-of-the-box thinking of systematic reduction and utilize known concepts of recycle, reduce or recovery of used water from processing. For this, the methodology has relied upon the replacement of water with environmentally benign and clean/green solvent for transporting chemicals into the skin matrix instead. The work consists of identifying the appropriate solvent or solvent mixture that a) did not have any adverse effect on the fibre structure, b) where a significant number of leather auxiliaries could be dissolved or dispersed and c) could be easily recovered and reused. The combination of solvents was selected from amongst reported clean/green solvents and the solubility / stability of the auxiliary dispersions determined by the measurement of the zeta potential of the system. The initial interaction of the dispersed auxiliaries with skin matrix being one of adsorption, various models of adsorption can be fitted to understand the nature of binding. The physical and visual properties of developed leathers have also been compared. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/15201 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | AAU | en_US |
| dc.subject | Near Zero Utilization | en_US |
| dc.subject | Water | en_US |
| dc.subject | Post tanning | en_US |
| dc.subject | Leather Processing | en_US |
| dc.title | Approaches to Near Zero Utilization of Water in the Post tanning Operations of Leather Processing | en_US |
| dc.type | Thesis | en_US |