Effect of Some Physical Properties on the Swelling Behaviour of Biomass Membranes

Abstract

The membranes of Detarium microcarpum seeds (DMS) and Alfzelia africana seeds (AAS) were developed. The water uptake capacities for DMS and AAS were found to be 500% and 390% respectively. The percentage of water uptake by Detarium microcarpum membrane and Alfzelia africana membrane, both increased with increased in the concentration of DMS and AAS as well as pH. The effect of contact time on water uptake showed that the water uptake increases gradually from 30 minutes to 2 hours and rapidly from 2 hours to 4 hours which mark the saturation point of the bio-sorbent. The water uptake of both membranes decreased with increase in ionic strength and temperature. This study revealed that Alfzelia africana and Detarium microcarpum membranes have high water uptake capacities, therefore, the study presents both DMS and AAS plant seeds as potential bio-sorbents for industrial use.