Environmental Engineering Reference
In-Depth Information
1.6
Fig. 2.6
(
a
) KMnO4
concentration released from
the 2% KMnO
4
by mass
prototype over a 47 day
period. (
b
) KMnO
4
concentration released from
the 20% KMnO
4
by mass
prototype over a 47 day
period
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
2
5
8
10 14 16 19 21 24 28 31 36 48
Day since start
(a)
35
30
25
20
15
10
5
0
0 2 4 0 7 4 1 9 6
Days since start
(b)
Future studies to evaluate KMnO
4
release will entail optimizing the con-
centration of KMnO
4
(greater than 20% by mass) that can be encapsulated in
the polymer structures and reducing the biphasic release observed in the proto-
types. Additionally, alternative hydrophobic and hydrophilic polymer blends will
be investigated. The surface area of the polymer structures can be enhanced
using various shapes and geometries such as cylinder columns, saddles, or hollow
tubes.
