By Jacqueline Vuong
Purification is an easy method to get clean drinking water. The idea to purify water with the use of bacteria absorbing cellulosic fibers. These absorbing cellulosic fibers can remove about 99.99 % of bacteria such Escherichia coli from water. There is no leaching of any biocides from the cellulosic fibers and it is a cheap, biodegradable, sustainable method.
In this study, 3 different cellulosic materials that had been modified was used to observe the removal of bacterium from water. The 3 cellulosic materials were cellulose fibers, 2, 2, 6, 6-Tetramethyl-1-piperidinyloxy (TEMPO) cellulose, and filtered paper. All materials were modified and placed into distilled water and 1/4-Ringer's solution, then incubated for 4 hours.
It was discovered that the modified TEMPO cellulose was the most efficient, out of the 3 materials, in removing bacteria from both solutions as shown in the figure above. After the TEMPO cellulose, the modified cellulose fibers came in second and the modified filter paper was the least efficient in removing bacteria from the solutions. This treatment allows for an alternative technique of purifying water over current methods being used. The study presents the first stages of being able to develop an environmentally sustainable, friendly treatment that is low-cost.
Purification is an easy method to get clean drinking water. The idea to purify water with the use of bacteria absorbing cellulosic fibers. These absorbing cellulosic fibers can remove about 99.99 % of bacteria such Escherichia coli from water. There is no leaching of any biocides from the cellulosic fibers and it is a cheap, biodegradable, sustainable method.
In this study, 3 different cellulosic materials that had been modified was used to observe the removal of bacterium from water. The 3 cellulosic materials were cellulose fibers, 2, 2, 6, 6-Tetramethyl-1-piperidinyloxy (TEMPO) cellulose, and filtered paper. All materials were modified and placed into distilled water and 1/4-Ringer's solution, then incubated for 4 hours.
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| The amount of bacteria, in percentage, removed after 4 hours in incubation in distilled water and in 1/4-Ringer's solution with the modified materials (Ottenhall et. al., 2017). |
It was discovered that the modified TEMPO cellulose was the most efficient, out of the 3 materials, in removing bacteria from both solutions as shown in the figure above. After the TEMPO cellulose, the modified cellulose fibers came in second and the modified filter paper was the least efficient in removing bacteria from the solutions. This treatment allows for an alternative technique of purifying water over current methods being used. The study presents the first stages of being able to develop an environmentally sustainable, friendly treatment that is low-cost.
Reference
Ottenhall, A., Josefin, I., & Monica, E. 2017. Water purification using functionalized cellulosic fibers with nonleaching bacteria adsorbing properties. EST. 51: 7297-7746.
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