About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
14th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
Presentation Title |
The Effect of Sawdust Particle Size Distribution on the Hydraulic Conductivity of Low-cost Ceramic Water Filters |
Author(s) |
Ian Nettleship, Chuyuan Zheng |
On-Site Speaker (Planned) |
Ian Nettleship |
Abstract Scope |
Low-cost ceramic water filters are usually manufactured from locally sourced clays and waste sawdust, a byproduct of local lumber production. While antibacterial efficacy has been demonstrated, there is little understanding of the effect of sawdust particle size distribution on filter properties. This study used sawdust less than 850 micrometers in size and divided it into four size fractions, each fraction accounting for approximately 25 weight% of the full size distribution. Then the effect of the sawdust size fraction on hydraulic conductivity and bulk density of the filters were determined as a function of the weight fraction of sawdust in the filter formulation. All the sawdust fractions showed the same rule of mixtures relationship between bulk density and sawdust content while the hydraulic conductivity varied by as much as three orders of magnitude. Three-dimensional imaging of the pore structures in the materials will be used to discuss the structure-property relationships. |